Resident Brown Recluse Spider Bites - EMRA
←
→
Page content transcription
If your browser does not render page correctly, please read the page content below
Resident Official Publication of the Emergency Medicine Residents’ Association June/July 2020 Brown Recluse VOL 47 / ISSUE 3 Spider Bites Pitfalls of US-guided IV Placement ITP Beyond the Boards Maintaining Wellness in Residency
Exciting opportunities at our growing organization • Adult and Pediatric Emergency Medicine Faculty positions • Medical Director • Vice Chair, Clinical Operations • Vice Chair, Research • Medical Student Clerkship Director Penn State Health, Hershey PA, is expanding our health system. We What the Area Offers: offer multiple new positions for exceptional physicians eager to join our We welcome you to a community that dynamic team of EM and PEM faculty treating patients at the only Level I emulates the values Milton Hershey Adult and Level I Pediatrics Trauma Center in Central Pennsylvania. instilled in a town that holds his name. Located in a safe family-friendly setting, What We’re Offering: Hershey, PA, our local neighborhoods boast • Salaries commensurate with qualifications a reasonable cost of living whether you • Sign-on Bonus prefer a more suburban setting or thriving • Relocation Assistance city rich in theater, arts, and culture. Known • Retirement options, Penn State University Tuition Discount, and so as the home of the Hershey chocolate much more! bar, Hershey’s community is rich in history What We’re Seeking: and offers an abundant range of outdoor • Emergency Medicine trained physicians with additional training in any activities, arts, and diverse experiences. of the following: Toxicology, Ultrasound, Geriatric Medicine, Pediatric We’re conveniently located within a Emergency Medicine, Research short distance to major cities such as • Completion of an accredited Residency Program. Philadelphia, Pittsburgh, NYC, Baltimore, • BE/BC by ABEM or ABOEM and Washington DC. FOR MORE INFORMATION PLEASE CONTACT: Heather Peffley, PHR FASPR at: hpeffley@pennstatehealth.psu.edu Penn State Health is committed to affirmative action, equal opportunity and the diversity of its workforce. Equal Opportunity Employer – Minorities/Women/Protected Veterans/Disabled.
Time for Gratitude Hello EMRA Family, “When I was a boy, and I would see exhaustion, and unrelenting body aches. I will be honest; the past few months scary things in the news, my mother Pre-coronavirus, I was a very active person have been difficult, as I am sure it has would say to me, ‘Look for the helpers. — mentally and physically. I worked out been for a lot of you as well. It has been You will always find people who are several times a week, read most days out of a rollercoaster of emotions riddled with helping’ “ — this quote by Mr. Rogers the week, and felt motivated to continuously guilt, fear, and frustration, often leaving rings truer than ever today. During the progress upward in my career. The STOP me feeling emotionally exhausted and pandemic, even while witnessing so many the virus placed on my body and life was physically unmotivated. horrid things, I have also been blessed to jarring. A week and a half flew by while I COVID-19, the novel virus that forever see so many helpers. mostly moved between my bed and chair. changed the landscape of medicine I have been inspired by medical I felt unmotivated and discouraged. I felt and society. Globally and nationally, it students who have used social media to guilty about missing my shifts while I brought out and highlighted our gross gather PPEs to donate. Encouraged by recovered. I felt saddened, by proxy, when I shortcomings as a medical institution. everyday folks pooling their spoke to my parents on video chat, who had It has stripped us of some of life’s most resources to provide for a struggling to stay away from their sick daughter. I felt joyous moments: weddings, graduation, neighbor. Astonished by the physician let-down that I was getting behind on my concerts, baby showers. mothers and fathers living outside their residency and EMRA tasks. It has taken lives. Countless of homes, isolating themselves from their Now, close to 2 months post-recovery, I colleagues/family members/friends have family and children, while they proudly am THANKFUL. succumbed to this virus, sometimes at the continue their mission of care and service I am thankful for that ‘down-time’: time peak of their lives. to others. to stop and focus on just myself helped me It has robbed us of humanity. We’ve I have also formed more profound re-prioritize my life. I have used this time had to tell patients’ family members, while connections with friends and colleagues to reach out to friends from college and they are crying in front of us, that they will who have only existed in a superficial medical school that I have not spoken to in not be able to visit their loved ones in the realm until now. We have had more time a few months. I used the lack of distractions hospital once admitted. And we’ve had to to open up and speak vulnerably and to reconnect with my husband and friends see our patients die in an empty room. honestly, and connections have been and helped strengthen friendships and This has created an incredible mental forged and strengthened by relating to relationships. and spiritual strain on all of us. This is a collective trauma. One of my favorite trauma we will be dealing with for the rest questions that prompted many of these I am filled with newfound gratitude of our lives. connections/conversations has been: when I go for a run on a warm day, and I But let’s not let this virus take What’s one positive you have can breathe in the air deeply without the anything more from us. learned from this time? dyspnea I had felt for weeks. Speaking with Let’s not let it take our ability to This has led to some of the most family members on video chat has taken on connect emotionally, even if it’s through authentic answers. I witnessed melancholy a new sense of joy as I am lucky enough to our phones and laptops. Let’s not let it take colleagues light up when answering. This be present at this moment to be able to do it. our ability to open up and be vulnerable to question truly makes us re-frame the To my #EMRAFamily, times are tough. others as we share our valleys and peaks. situation at hand. But don’t let this virus take away Let’s let it serve as a reminder to prioritize I implore you all to ask this question anything more than it already has. Take ourselves and the people we care about AND share authentically yourself. I will the time to talk to our colleagues, friends, most. Friends, our careers are important, help start the conversation: family. Do not repress your thoughts. but the connections we create in this world I contracted COVID-19 in March. Journal and self-reflect authentically. It’s with our fellow humans are what makes What I thought was just nasal congestion ok not to be ok. Reach out when you need life meaningful. turned into dyspnea on exertion, extreme to. We are all in this together. ¬
Facing COVID-19 together on the front lines. Stronger Togeth Together Stronger together means leadership by front-line physicians and advanced providers. We are a physician-led and -owned partnership united by compassion and collaboration. Our clinicians deliver integrated acute care at practice sites across the nation, working together to achieve our greatest goal: saving lives. Learn how Vituity’s clinicians are fighting the epidemic at vituity.com/COVID-19. Vituity ® is a registered trademark of CEP America, LLC. © CEP America, LLC, All Rights Reserved.
TABLE OF CONTENTS 5 Transition, Not Competition 28 DIY: CI Tips for Getting into EDITORIAL STAFF PRESIDENT’S MESSAGE EDITOR-IN-CHIEF Clinical Informatics Priyanka Lauber, DO INFORMATICS, 6 Update from the ACGME Review Committee for CAREER PLANNING Lehigh Valley Health Network EDITORIAL TEAM Emergency Medicine LEADERSHIP REPORT 32 Until Help Arrives – Prehospital Emergency Marc Cassone, DO Geisinger Medical Center Brian Freeman, DO Education All Citizens 8 Systemic Ioxoscelism TOXICOLOGY Should Have Lakeland Health Sean Hickey, MD PREHOSPITAL/DISASTER 11 The Phenomenon of Tumor Neglect MEDICINE Mount Sinai Hospital Whitney Johnson, MD MENTAL HEALTH 34 Maintaining Wellness as an EM Resident UCSF-Fresno Jeremy Lacocque, DO 12 Atypical Hemolytic Uremic Syndrome WELLNESS UCSF EMS Fellow Jason Silberman, MD CRITICAL CARE 36 A Letter to Graduating Residents & Fellows University of Tennessee 14 Recognition and Management of Nerve During the COVID-19 Pandemic Samuel Southgate University of Connecticut Agent Exposure CAREER PLANNING MSC Editor TOXICOLOGY David Wilson 16 Reviewing Accidental 38 Room 16 Right HEART OF EM Sidney Kimmel Medical College Thomas Jefferson University Hypothermia ECG Faculty Editor WILDERNESS MEDICINE 39 Dexamethasone in ARDS Jeremy Berberian, MD ChristianaCare 18 ITP Beyond the Boards HEMATOLOGY CRITICAL CARE/PULMONARY PEM Faculty Editor 41 A Resident’s Intro to Billing Yagnaram Ravichandran, MBBS, MD, FAAP 20 A Case of Severe Malaria in the ED ADMIN & OP Dayton Children’s Hospital Pediatric ED Clinical Asst. Professor of Pediatrics 43 What Wright State University INFECTIOUS DISEASE is Surprise Billing… and Why Should I Care? Toxicology Faculty Editor 22 A Pause to Consider Strongyloides Stercoralis HEALTH POLICY David J. Vearrier, MD, MPH, FACMT, FAACT, FAAEM in the ED INFECTIOUS DISEASE 44 Not Your Mother’s AAWEP… EM Resident (ISSN 2377-438X) is the CAREER PLANNING 24 Common Pitfalls of bi-monthly magazine of the Emergency 49 News & Notes Medicine Residents’ Association (EMRA). Ultrasound-Guided The opinions herein are those of the Peripheral IV Placement NEW GUIDES, HEALTH POLICY, authors and not of EMRA or any institutions, ULTRASOUND ABEM, AND MORE organizations, or federal agencies. EMRA encourages readers to inform themselves 26 Implicit Bias Is Both Helpful and Harmful, 51 ECG Challenge INTERPRET AND DIAGNOSE fully about all issues presented. EM Resident reserves the right to edit all material and does So What Can We Do? not guarantee publication. ADMIN & OPS 53 Board Review Questions © Copyright 2020 Emergency Medicine Residents’ Association PEER ASSISTANCE June/July 2020 | EM Resident 3
INTRODUCING MobilEM Free content and in-app purchases Top 5 reasons why you should download this awesome app! • Comprehensive digital library of EMRA’s most popular clinical resources • Continual updates that require no action on your part (simply open the app to get up-to-the-minute content) • 2 types of search (targeted and universal) • Bookmarking • New resources added constantly All of this for only links $333/month Get direct Annual subscription $3999 and to iTunes y at Google Pla s! app emra.org/ Emergency Medicine Residents’ Association 4 EMRA | emra.org • emresident.org www.emra.org | emra@emra.org | @emresidents |
PRESIDENT’S MESSAGE Transition, Not Competition Hannah R. Hughes, MD, MBA electives, and fluctuating patient volumes. out of the imposter syndrome spiral: President, EMRA Pre-coronavirus, we would have had time 1. Don’t be afraid to say, “I don’t Chief Resident, to reflect on the year we just finished, know.” University of Cincinnati Emergency Medicine prepare for the year ahead, maybe even Regardless of where you are in train- @hrh_approved T take that vacation we’ve been dreaming ing, no one expects you to know it all, wo months into my intern year, about forever. and this is especially true for early I had my first case presented at But now? interns who are just getting used to Morbidity & Mortality conference. Now, we’ve endured weeks of being called “Doctor.” As my chief An elderly man with metastatic prostate unremitting high alert. We’ve been, resident told me early in my intern cancer came in with back pain and known by turns, overwhelmed by volume and year, “If you were expected to enter spinal lesions. While his neurologic driven to distraction by eerily empty training already knowing everything, exam was initially normal, he developed ED waiting rooms. Our students are residency wouldn’t be a thing.” It’s OK paraplegia within hours, and it was sidelined, our graduates are facing to not know; we’re all here to learn. missed. I was crushed. Ten years of unexpected unemployment, and we don’t 2. Demonstrate vulnerability. undergraduate and graduate education know what this year will bring. Failure is inevitable, whether it’s your spent aiming to be at the top of my It doesn’t make for the first patient of intern year or well into game, only to fail a patient so early in smoothest transition of all time. being an attending. We all are or will my residency training? It made for a As I shift from running our Shock be #BAFERDs, but we are also human tough transition from medical student to and Resuscitation Unit as a third-year and bound to make mistakes. Sharing physician. resident to supervising interns as a fourth those with others requires vulnerabil- And here we are again, on the brink of year, I worry. Have my extracurricular ity, a demonstration of bravery, not another transition. interests pulled me away from keeping weakness. The start of a new academic year up with evidence-based medicine? Have I 3. Support one another. is full of anxiety as we all step into our run enough resuscitations of critically ill Life is not a competition. There is no new roles, regardless of what level we’ve patients? What if my interns know more race – and in EM, no finish line (every reached in training. It’s part of the than me when I’m supposed to be the one empty waiting area fills up again). medical maturation process. But this teaching them? All those frantic footsteps you hear year, it just feels… different. The spiral always ends with the same are not people trying to outrun you; Being on the front lines of COVID-19, question: Am I good enough? they’re your fellow caregivers, making it seems as though we’ve matured years Having an early M&M case shook my sure you and your patients are not in just a matter of months, in many ways. confidence, and the same can be true for alone. And heads-up: You’re doing the Yet there’s still this uneasiness as we role transitions. Self-doubt can be either same for them, whether you realize it step into our new roles, particularly in debilitating or harnessed as a tool for or not. EM is a team endeavor, not a the setting of delayed rotations, canceled growth. Here are 3 reminders that get me solo sprint. ¬ References available online June/July 2020 | EM Resident 5
LEADERSHIP REPORT Update from the ACGME Review Committee for Emergency Medicine Breanne Jaqua, DO, MPH ACGME Review Committee for Emergency Medicine Mercy St. Vincent Medical Center @BreanneJaqua A s the resident representative to ACGME’s Review Committee for Emergency Medicine, it is my pleasure and honor to provide an RC-EM update to EMRA and the readers of EM Resident magazine. Please read on for updates in 5 key areas affecting emergency medicine residents: Hospital closures Parental leave Diversity in medicine Single Accreditation System COVID-19 Ohio Valley Medical Center’s hospital standardized approach to parental leave 1. Hospital Closures closure was announced in August policies for resident and fellow parents Excluding the global pandemic, 2019.1 All 15 internal medicine and 17 by certifying boards, accreditation the most well-known issue in graduate emergency medicine residents were able requirements, Sponsoring Institutions, medical education over the past year to transfer to other training programs, and programs.”4 was the sudden closure of Hahnemann and a total of 325 positions were offered Final recommendations are expected University Hospital in the summer of to the displaced residents.1 This closure in 2020. 2019.1 A total of 553 residents and fellows was different than Hahnemann’s from 35 programs were affected by this 3. Diversity because Ohio Valley Medical Center did abrupt announcement, including 55 not declare bankruptcy, therefore tail Diversity is an important topic at the residents and fellows on J-1 visas.1 ACGME. The revised common program coverage was provided to these residents.1 The response from the medical requirements that went into effect in July The February 2020 ACGME Annual community was overwhelming and 2019 included a new core requirement, Educational Conference included supportive; the ACGME, AMA, AOA, item I.C., that codifies diversity in excellent discussion and recognition of AAMC, ECFMG, NRMP, FSMB, ABMS, graduate medical education. the lessons learned from these events and and many other medical organizations “The program, in partnership plans for how to be better prepared for came together to support the trainees with its Sponsoring Institution, must future hospital closures.1 affected.1 A total of 1,530 available engage in practices that focus on positions were offered to the displaced 2. Parental Leave mission-driven, ongoing, systematic trainees, representing a total of 190 recruitment and retention of a diverse sponsoring institutions in 39 states.1 Parental/family leave is a topic that and inclusive workforce of residents, Ultimately, 100% of the displaced has gained a lot of attention in recent fellows (if present), faculty members, residents and fellows transferred to new months, thanks to the advocacy of the senior administrative staff members, and programs, and 60% were able to stay in ACGME’s Council of Review Committee other relevant members of its academic the Philadelphia metro area.1 Hahnemann Residents.4 In the fall of 2019, the community.”5 University Hospital declared bankruptcy ACGME created a multi-disciplinary task The ACGME hired William A. McDade, in addition to closing the hospital, which force dedicated to this topic. Parental/ MD, PhD, as its first Chief Diversity left 1,400+ trainees and alumni without family leave is a multifaceted issue that and Inclusion Officer in March 2019.6 medical liability “tail” coverage.2 A has ramifications for board eligibility, Dr. McDade comes to the ACGME from $9.3 million settlement was reached in which is why the task force includes direct Ochsner Health System in New Orleans, March 2020, ensuring liability coverage collaboration with the American Board of where he was executive vice president for Hahnemann residents, fellows, and Medical Specialties (ABMS).4 and chief academic officer. Prior to his alumni.3 “This work will lead to a more appointment at Ochsner, Dr. McDade was 6 EMRA | emra.org • emresident.org
a professor of anesthesia and critical care All GME programs can apply for proposed language closed March 25.11 at the University of Chicago. osteopathic recognition, which provides If approved by the ACGME Board of On Feb. 20, 2020, the ACGME osteopathic training in graduate medical Directors, the new language will take announced Bonnie Mason, MD, as the education.8 effect July 2020. Vice President of Diversity and Inclusion.7 As of March 2020, 89% of the 62 Prior to joining the ACGME, Dr. Mason previously AOA-accredited emergency 6. COVID-19 was the founder and executive director medicine programs have an accreditation These are unprecedented times. of Nth Dimensions. She is also the co- status with the ACGME; 28 programs are The ACGME has suspended several founder/chief executive officer of Beyond on continued accreditation, 23 on initial accreditation-related activities to allow for the Exam Room, where she has developed accreditation, 4 on initial accreditation the prioritization of patient care, including a comprehensive, continuing medical with warning, 1 had accreditation self-study activities, accreditation site education (CME)-accredited business withdrawn, and 6 closed.8 visits, CLER program site visits, and of medicine, career development, resident, fellow and faculty surveys.12 leadership, and financial curriculum for 5. Faculty Protected Time Additionally, the telemedicine young physicians at the undergraduate In the 2019 July revised common supervision requirements that were and graduate medical education levels. program requirements, the stipulation scheduled to go in to effect in July of 2020 regarding core faculty protected time was were fast tracked to help the medical 4. Single Accreditation System removed. The subsequent outcry from the community respond to the pandemic.13 The single accreditation system will emergency medicine9 and family medicine The ACGME president and CEO noted conclude its 5-year transition this year. communities inspired the ACGME to in March that 3 areas of priority include After the completion of the transition, create a task force dedicated to this issue. maintenance of duty hour requirements, all GME programs in the United States The task force recommended adequate resources and training related to will be accredited by the ACGME.8 This including language that protects COVID-19, and adequate supervision for brought unique changes to the GME core faculty non-clinical time which residents and fellows.13 landscape, including a single match prompted the emergency medicine review This is a constantly evolving situation; through the National Resident Matching committee to add language to this effect.10 please check the ACGME’s Newsroom Program (NRMP).8 The open comment period for the online for the latest updates. ¬ The COVID-19 pandemic has changed how OCTOBER 26-29•2020 D A L L A S • T E X A S we live, we connect...and how we learn. Right now, we are fully committed to holding REGISTRATION OPENING JULY 1 ACEP20 in Dallas October 26-29. But we know that might not be an option for all, so we also plan to offer a virtual event to allow anyone to participate remotely. This is a dynamic situation, no matter what happens you will be covered by our worry-free registration guarantee. We know you look forward to the networking, education, and fun that comes along with ACEP’s annual meeting. We will do everything we can D A L L A S to ensure the safety of our attendees, presenters, vendors and staff while following the recommendations of our communities’ health officials. For updates, sign up for our ACEP20 interest list at We are excited to share with you a freshly re-designed event experience that will meet you where you are - whether in Dallas for the live event Start Planning, Book Your acep.org/acep20 or remotely for a virtual connection. ACEP20 will deliver the world class Hotel Now! faculty, education and innovation you have come to expect from the Book only through onPeak, world’s largest gathering for emergency medicine. our official hotel provider, to secure your room. EMR_0620_MC94_0520 Approved for AMA PRA Category 1 Credit ™ References available online June/July 2020 | EM Resident 7
TOXICOLOGY ITSY BITSY SPIDER, BIG TIME DANGER Systemic Ioxoscelism Michael Simpson, MD to as brown recluses and black widows, basements and attics. Outside, they can EMRA Toxicology Committee Chair-elect though there are other relevant species be commonly found underneath rocks Vanderbilt University Medical Center within each genus. In this article, we and the bark of dead trees. They have Monisha Veerapaneni will cover Loxosceles specifically, but 6 eyes arranged in dyads, while most Burrell College of Osteopathic Medicine would encourage readers to familiarize other spiders have 8, and the markings Class of 2023 @monieeehearts themselves with Lactrodectus as well. on their torso are said to resemble a A The Elusive Recluse violin or fiddle, though the markings 20-year-old woman presents to are less reliable and have led to the the emergency department with Loxosceles spiders are found in misidentification of harmless spiders in a painful ulcer to her proximal certain endemic areas in North and South non-endemic areas as brown recluses. thigh that she says has grown in size and America, especially the South, Southeast, While definitive epidemiological become necrotic over the last 3 days. She and Southwest United States (Figure 1). data is lacking due to the difficulty in also reports fever, malaise, and dark Location in an endemic area is a confirming a bite, retrospective data of urine for the past day. She has been strong predictor of a spider belonging to 359 patients over 11 years from Brazil, helping her parents renovate their old the Loxosceles genus, as these spiders where Loxosceles envenomation is house in the countryside and believes she are rare outside of these described a significant public health concern,4 may have been bitten by a spider. regions.2,3 These spiders are nocturnal demonstrates bites in children and adults hunters who are not aggressive but “Is this a spider bite?” will bite if threatened, typically found up to 59 years of age, with males and The ED chief complaint of “spider females equally represented, and the inside homes in dark, quiet areas such as bite” is a common one, and as most most common sites of injuries being the residents will realize, the majority (as FIGURE 2. Brown Recluse Bite thigh and the trunk.5 A similar study from high as 84% in one study) of these will Chile demonstrated that 73.6% of bites have a final diagnosis of a skin and soft occurred during the summer months of tissue infection like abscess or cellulitis.1 the year.6 Even in actual cases of spider bites, Local Toxicity the spider will rarely be available for The stereotypical cutaneous lesion definitive identification, so the treating in Loxosceles bites is characterized by physician must be aware at least of the central necrosis, a middle ring of blanched clinical presentation of the two most skin, and an outer ring of surrounding common venomous spiders in North erythema. This pattern is known as the America: those of the genus Loxosceles “red, white, and blue” lesion and is highly and Lactrodectus, frequently referred PHOTO BY MICHAEL SIMPSON suggestive of envenomation. The likely 8 EMRA | emra.org • emresident.org
pathophysiology for this necrosis involves As mentioned previously, appropriate Systemic Illness the cytotoxic effects of sphingomyelinase identification of an offending spider In addition to localized necrosis, some D found in Loxosceles venom.7 is unlikely to be of much use to ED patients will develop systemic effects of Over the 14 days following the bite physicians treating patients with possible Loxosceles envenomation, collectively (Figure 2), an eschar will develop over the spider bites. Because the differential for a referred to as “loxoscelism.” The most site and then slough off spontaneously. necrotic wound is large and the diagnosis well-described elements of loxoscelism The rate of healing past these first 2 weeks is often a clinical one, dermatologists and include fever and chills, nausea and often depends on the location and size of entomologists have published a memory vomiting, arthralgias, intravascular the wound, but most patients recover from aid for when to consider a diagnosis other hemolysis with hemoglobinuria, the cutaneous effects of envenomation and than brown recluse spider bite (BRSB): rhabdomyolysis, disseminated do not progress to systemic toxicity. NOT RECLUSE (Table 1).8 intravascular coagulation (DIC) and TABLE 1. BSRB — NOT RECLUSE acute kidney injury.9 Sphingomyelinase Numerous If multiple lesions, consider bites by blood-feeding arthropods D has also been implicated in systemic loxoscelism, damaging the erythrocyte Occurrence If occurs outside, consider fungal infection or insect bite cell membrane and recruiting Timing Loxosceles bite very unlikely in October and March inflammatory mediators leading to a Red center If red center, consider cellulitis or insect bite systemic inflammatory reaction.10 Elevated If raised > 1 cm, consider abscess or cellulitis Again due to the difficulty of Chronic If persists > 3 months, consider skin cancer confirming cases of BRSB, the true Large If > 10 cm, consider pyoderma gangrenosum rate of loxoscelism is unknown; while it appears to be rare in North America, Ulcerates If ulcerates in < 7 days, consider pyoderma gangrenosum the condition is potentially life- Swelling If causes swelling below the neck, consider abscess or cellulitis threatening and can affect otherwise Exudate If wound is weeping, consider abscess or purulent cellulitis healthy individuals,7 so it must be on FIGURE 1. Brown Recluse Habitats deserta apachea arizonica reclusa blanda devia REPRODUCED WITH PERMISSION OF RICK VETTER June/July 2020 | EM Resident 9
TOXICOLOGY the differential when appropriate. In concerning for loxoscelism, including to the medical ICU and although she particular there are reports of children hematuria, should be admitted to required a single transfusion of packed developing severe systemic loxoscelism the hospital and closely monitored, red blood cells during her admission, she prior to the appearance of the classic skin likely in the ICU.14 Severe hemolysis recovered over the next 5 days and was findings.11,12 While there are lab tests that should be transfused as necessary, discharged home with wound care for can differentiate Loxosceles bites from and coagulopathy/DIC may need her necrotic ulcer. ¬ the necrotic wounds of several other to be reversed in the setting of life- spider species, these tests are not readily threatening bleeding. Those experiencing available to most ED physicians.13 Instead TAKE-HOME POINTS rhabdomyolysis, hemoglobinuria, or the best way to diagnose loxoscelism is acute kidney injury require intravenous ü The diagnosis of BRSB is a clinical to be aware of and monitor for the feared fluid hydration.5 Antivenom is currently one, as spider identification is systemic complications themselves. not available in the United States, so often not possible and definitive ED physicians should turn their treatment is aimed at supportive care of lab testing is not widely available. attention initially toward the airway, the complications as they arrive. ü BRSB are extremely uncommon breathing, circulation, and mental status of the patient. Once any needed Case Conclusion outside of endemic areas. resuscitation is complete and the In the setting of a necrotic lesion ü Using the NOT RECLUSE patient is determined to be at risk for concerning for BRSB, the ED team mnemonic, consider a broad loxoscelism, relevant labs include serum identified the dark urine as concerning differential diagnosis. creatinine, hemoglobin/hematocrit, for hemoglobinuria from loxoscelism. ü Systemic loxoscelism is rare platelets, Coombs test, prothrombin Urinalysis was positive for blood, but deadly – screen suspected time and partial thromboplastin time, confirming suspicion for hemoglobinuria patients for hemolysis, rhabdo D-dimer, fibrinogen, and creatine kinase, and intravascular hemolysis. The myolysis, and acute kidney injury. with additional testing dictated by the patient’s hematocrit was 35%, platelets ü As antivenom is unavailable in patient’s presentation. Urinalysis is also were 163,000/mcL, her Coombs test the United States, treatment indicated, as hematuria is an ominous was positive, and her creatine kinase, for systemic loxoscelism is ICU predictor of intravascular hemolysis. PT, PTT, D dimer, and fibrinogen were Patients with diagnostic testing within normal limits. She was admitted admission and supportive care. Because motorcycles will never have seatbelts. You’re there for them, we’re here for you. AC EP AN D EM R A’ S O FFI C I AL O N LI N E C AR EER C EN T E R POWERED BY HEALTH ECAREERS 10 EMRA | emra.org • emresident.org
MENTAL HEALTH DENIAL OF DEATH The Phenomenon of Tumor Neglect Rebecca Kreston, MD, MSPH Little research is available on this diagnosis and its potential financial University of Illinois-Chicago phenomenon, with only a few isolated burden may also be contributing factors. @thebodyhorrors case studies. The incidence is unknown. Patients seek to maintain control and Payal Patel, MD Cancers that appear to be most commonly independence as their deteriorating University of Illinois-Chicago associated with tumor neglect include health threatens the status quo.3 Those Shana Ross, DO, MS those that are visible to the patient, larger suffering from tumor neglect do not see Assistant Professor, Department of Emergency Medicine than 1 cm, and especially malignancies their behavior as a form of denial and Assistant Director, EM Residency Program of the skin and breast, though cases of can feel suspicious of and threatened University of Illinois-Chicago testicular and some solid organ cancers by the perceived interference of family @ShanaElisha have been reported. It is estimated that a and medical personnel who seek to A 56-year-old male with a past third of women with symptoms of breast help. Understandably, patients with medical history of active tobacco cancer will delay seeking professional tumor neglect can inadvertently become use and remote intravenous care by > 3 months.1 A 2018 report details alienated by their behavior and the heroin use presents to the ED complaining a case of a 37-year-old woman with a presence of a visible malignancy. of a 2-month history of a rapidly growing breast lump for 4 months who Emergency physicians are uniquely enlarging mass on his right cheek. He presented to the ED with pain at the site.2 positioned to offer support, as potentially states the lesion began as a “small pimple” Imaging confirmed the 16 cm by 13 cm the first point of contact when a patient and rapidly expanded. Exam reveals a fungating mass had metastasized to the seeks help. Often, the most meaningful 10 cm by 10 cm exophytic and indurated lung and liver. Shortly after admission, the impact relates less to immediate mass protruding from the right face, patient developed spontaneous tumor lysis management than referral to a specialist. extending from the preauricular area syndrome and died of multiorgan failure. Establish rapport, try to overcome the and zygoma to his proximal neck with Several case studies describe patient’s distrust of physicians, and a necrotic and purulent central region. individuals ignoring their tumors for eliminate barriers to health care when CT imaging shows a necrotic infiltrative months or even decades, resisting the possible. Preserve the patient’s autonomy malignant mass of the right cheek with efforts of family and friends to persuade by seeking their input on key decisions in extensive right neck neovascularity and them to seek medical care.2 Such neglect their care, while providing an informed adenopathy at all cervical levels. can lead to unchecked tumor growth, perspective on their condition. Tumor neglect is a maladaptive disfigurement, metastasis, and death.2 Case Resolution response to grossly evident cancers that Management of such advanced cases Our patient was admitted with are disfiguring and life-threatening. The depends on several factors and often oncology and otolaryngology consults. phenomenon, uncommon and largely requires a multidisciplinary team that Biopsies revealed HPV-negative, poorly unstudied, involves patients ignoring may include surgeons for resection and differentiated squamous cell carcinoma tumors in order to “cope with the reconstruction in challenging cases.1 of the face. A PET scan demonstrated obvious, outward and clearly visible signs The reasons for this unusual significant metastases to the spine, liver, of cancer.”1 Denial is a common coping phenomenon are multifactorial: distrust and lungs. Three weeks later, the patient mechanism that grants individuals time of the health care system, poor medical underwent resection of the facial mass to come to terms with stressful situations. literacy, low socioeconomic status, with modified radical neck dissection and However, it has the potential to become psychosocial stressors, and the tendency pectoralis flap placement. Three months pathological, particularly when one’s own to overlook the hazard of slow-growing later, he was transitioned to hospice care health is at stake. tumors. A patient’s fear of a formal cancer and died under unclear circumstances. ¬ References available online June/July 2020 | EM Resident 11
CRITICAL CARE Atypical Hemolytic Uremic Syndrome Peter Brooks, DO gluconate, 1 amp sodium bicarbonate, dialysis was started, the remainder of the Carolinas Medical Center Ultrasound Fellow 10 U insulin, 25 g D50, and nebulized laboratory studies results were: Eastern Virginia Medical School EM Residency albuterol. The QRS immediately narrowed • BMP: Na 131, K 9.4, Cl 85, CO2 6, Martin D. Klinkhammer, MD, MPH, FACEP on telemetry and on a subsequent ECG BUN >186, Creatinine 48.3, Glucose Assistant Program Director Assistant Professor, Emergency Medicine (Figure 3) that was obtained. 117, (Anion gap 39.6) Eastern Virginia Medical School Results of a CBC with manual • Path review of smear: Moderate A n 18-year-old African American differential showed a platelet count of schistocytes female presented to the ED 75 and 2+ RBC fragments. Hemolysis • Total bilirubin 0.3; LDH 1,328; complaining of a 3-week history labs and DIC screen were ordered. The haptoglobin < 10. PT; pTT and of generalized fatigue, nausea, vomiting, patient’s repeat BMP was reported as fibrinogen were within normal limits heavy vaginal bleeding, lightheadedness. hemolyzed once again. All are consistent with Given the clinical scenario of microangiopathic hemolytic anemia. On the day prior to arrival in the ED, anemia with evidence of hemolysis, The patient was admitted to the she developed progressively worsening thrombocytopenia, and presumed medical intensive care unit, where she dyspnea with exertion. She had been hyperkalemia likely due to acute renal required endotracheal intubation for to several urgent care centers and failure, thrombotic microangiopathy was acute hypoxic respiratory failure. Four EDs without receiving a diagnosis. considered with differential diagnoses hours of dialysis were completed with She denied any fever, rash, diarrhea, including thrombotic thrombocytopenic transfusion of 2 units of packed RBCs, or hematochezia. She denied alcohol, purpura, hemolytic uremic syndrome, or and shortly afterwards PLEX was started. cigarettes, or other drug use and was not complement-mediated hemolytic uremic Discussion taking any medications. On presentation, syndrome. Nephrology and oncology her VS were as follows: 98.6 T, 140 HR, Microangiopathic hemolytic were consulted for emergent dialysis 22 RR, 180/90 mmHg BP, 96% oxygen anemia (MAHA) is a condition defined and plasma exchange therapy (PLEX). saturation on room air. The patient by microvascular hemolysis with A bedside istat was drawn showing a appeared tired with pale conjunctiva. anemia and schistocyte formation. potassium of 7.5 and immeasurable There was no rash or evidence of active Thrombotic microangiopathy (TMA) creatinine. Telemetry showed recurrence bleeding. Pelvic exam showed minimal is a condition characterized by MAHA of QRS widening requiring additional blood at the cervical os, and rectal exam and thrombocytopenia due to platelet treatment for hyperkalemia, with showed normal brown stool in the rectal activation and consumption. End-organ improvement. The decision was made vault, which was hemoccult negative. damage is caused by microvascular to place an emergent UDALL catheter Initial lab work demonstrated WBC thrombi and occlusion leading to tissue to initiate dialysis and PLEX. After 23.6, Hb 5.1, HCT 14.9. The platelet count ischemia.1,2 was indeterminate due to clumping. All The major types of TMA are shiga other labs were marked as hemolyzed. toxin-mediated hemolytic uremic Two units pRBCs were ordered for critical syndrome (ST-HUS, also known as classic anemia. A bedside echo showed no HUS), complement-mediated TMA (also pericardial effusion, no right heart strain, known as atypical HUS or aHUS), and and normal ejection fraction. A FAST thrombotic thrombocytopenic purpura exam was negative for intraperitoneal (TTP). TMA is a hematologic emergency fluid. A chest x-ray was obtained requiring prompt diagnosis and treatment. (Figure 1) with a radiology interpretation It should be suspected in any patient reporting, “Cardiomegaly with bilateral with evidence of hemolytic anemia and basilar opacities concerning bilateral thrombocytopenia. The initial treatment pneumonia vs pulmonary hemorrhage.” of TMA includes supportive care, An ECG was obtained (Figure 2) corticosteroids, and antibody removal showing a wide-complex rhythm with with plasma exchange or plasmapheresis. peaked T-waves. While awaiting BMP FIGURE 1. A Chest X-ray Demonstrated Treatment should be started before results, the patient was empirically Cardiomegaly and Bilateral Basilar definitive diagnosis is made, which can treated for hyperkalemia with 3 g calcium Opacities take several days. 12 EMRA | emra.org • emresident.org
AIRWAY Comparing TTP, ST-HUS, with PLEX should not be delayed, as 50% TTP, patients with complement-mediated complement-mediated TMA of deaths from TTP occur in the first 24 TMA are more likely to have severe renal TTP is caused by decreased activity hours.2 In cases where access to PLEX is dysfunction and pulmonary involvement of ADAMTS13, most commonly due delayed, FFP can be started, as it contains (eg, pulmonary hemorrhage) and are less to inhibitory autoantibodies against ADAMTS13, but PLEX has been shown likely to have severe neurological changes. ADAMTS13. ADAMTS13 is a protease to improve survival over FFP infusion Prognosis of complement-mediated that cleaves von Willebrand Factor alone.4 An ADAMTS13 level should be TMA is highly variable depending on (vWF) from large multimers to shorter drawn before the initiation of PLEX or which complement regulatory protein is molecules. Normally, endothelial FFP to avoid a false-negative result. mutated.6 Eculizumab is a monoclonal cells produce long chains of vWF, and ST-HUS is caused by shiga antibody used in the treatment for ADAMTS13 binds to cleavage points and toxin, commonly produced by complement-mediated TMA. Eculizumab cleaves the long molecules into shorter enterohemorrhagic Escherichia coli binds to the complement protein C5 and fragments. Without ADAMTS13, large (EHEC) (usually O157:H7) and is prevents conversion into C5a and C5b, chains of vWF accumulate in arterioles associated with diarrhea. It is diagnosed ultimately preventing the production and capillaries, subsequently causing by the identification of the shiga toxin of membrane attack complex (MAC) platelets to clump onto vWF, leading to or EHEC in the stool. Treatment with and protecting RBCs from intravascular microangiopathic occlusion causing end- antibiotics may worsen the disease, and hemolysis.7,8 organ damage.3 TTP is most commonly ST-HUS usually resolves with supportive care such as fluid resuscitation and blood Conclusion seen in young women. The classic pentad transfusion.5 In the ICU, our patient underwent of TTP (found in only 5% of patients) Complement-mediated TMA is an daily hemodialysis and PLEX with clinical is fever, microangiopathic hemolytic anemia, thrombocytopenia, renal failure, autoimmune-mediated HUS caused by and biochemical improvement and was and neurologic symptoms (FAT RN). The complement dysregulation. The diagnosis extubated on hospital day 3. Workup hallmark of TTP is TMA with a severely is suspected in any patient with TMA with revealed an ADAMTS13 antibody activity reduced ADAMTS13 level of
TOXICOLOGY Feeling Nervous? Recognition and Management of Nerve Agent Exposure Garrett Cavaliere, DO University of Maryland Medical Center Emergency Medicine Residency Gregory Jasani, MD University of Maryland Medical Center Emergency Medicine Residency Reem AlFalasi, MBChB University of Maryland Medical Center Emergency Medicine Residency A patient presents to your urban emergency department via EMS with shortness of breath, copious secretions, nausea, vomiting, and stool incontinence. His symptoms began abruptly at a concert and progressively worsened. During transport, he develops signs of increased work of breathing, coarse lung sounds, and hypoxia. You then receive a box call from the concert Incident Command regarding multiple casualties en route to your facility with similar symptoms. What do you do next? Who do you call, what procedures need to be initiated? (GD), and cyclosarin (GF). They have agents.2 They add a sulfur group to the the designation “G” because they organophosphates thereby making these Introduction were initially synthesized by German agents less volatile as well as more fat/ Nerve agents are one of the most scientists in the early 20th century.2 oil soluble. They act through direct skin terrifying weapons of war. With many contact and persist in the environment Originally, tabun was designed as an direct pathophysiologic effects, the for up to several weeks due to their organophosphate pesticide. However, psychological terror they instill is often hydrophobic nature. The most notable its utility as a weapon was quickly the intent of their use.1 Often tasteless realized and the additional agents were example is VX which is highly toxic and and colorless, they can be dispersed over developed. These agents are all liquids can cause death within a few minutes to a wide area to inflict as many casualties at room temperature but can easily be hours.2 as possible. Although banned from use in conventional war, there have increased aerosolized by either a dispersal device Pathophysiology concerns that terrorist organizations or or by an explosive blast. They are all Nerve agents are very similar other non-governmental organizations soluble in both fat and water, meaning to organophosphates; they bind to may seek to use these weapons anyways.1 they can readily be absorbed through and inhibit acetylcholinesterase. While the United States has fortunately the eyes, skin, and respiratory tract. This produces a toxic accumulation never seen a nerve agent attack on its soil, They are all considered non-persistent of acetylcholine at the peripheral the possibility remains high. Emergency compounds meaning that they evaporate muscarinic, nicotinic receptors as well medicine providers must be able to quickly.2 as the CNS synapses. Additionally, nerve recognize and treat victims of nerve agent The second generation of nerve agents appear to activate the NMDA attacks. agents with the designation “V” are much receptors in the brain and inhibit GABA The 4 most common nerve agents more stable and potent compared to the transmission.3 are tabun (GA), sarin (GB), soman “G” agents and are considered persistent Overstimulation of muscarinic 14 EMRA | emra.org • emresident.org
receptors causes miosis, hypersecretion, SLUDGE: Salivation, Lacrimation, an event has been identified. All bronchoconstriction, vomiting, diarrhea, Urination, Defecation, GI upset, Emesis emergency notifications to staff and urinary and fecal incontinence, and In addition to atropine, providers local government agencies should be bradycardia. Over-activating nicotinic should also administer Pralidoxime made. This includes the state health receptors in the skin cause sweating, and Chloride (2-PAM chloride). department to begin mobilizing in skeletal muscle, they cause weakness 2-PAM works by reactivating the resources.7 and flaccid paralysis.3 At CNS cholinergic acetylcholinesterase by scavenging the The specific level of personal receptors, nerve agents produce fatigue, phosphoryl group and attaching it to protective equipment (PPE) is dictated lethargy, amnesia, ataxia, seizures, coma, the functional hydroxyl group of the by the type of release and air vapor and respiratory depression.3 acetylcholinesterase.4,5 Delays in the concentrations. At a minimum level, Symptoms administration of 2-PAM can render it coveralls, gloves, steel toe, shank boots ineffective because of the aging of the [chemical-resistant], should be used The clinical presentation of patients agent cholinesterase complex. if no air involvement.8 It is unrealistic exposed to nerve agents depends on to expect ED staff to be trained for the route and duration of exposure. TABLE 2. Dosing of 2-PAM for higher levels of PPE; however, the Exposure to lower concentrations of Cholinergic Toxicity decontamination group should at vapor leads to relatively mild symptoms Route Dose minimum be operating in level B PPE such as miosis, ocular pain and IV 30 mg/kg (typically 1-2 g), (SCBA. Chemical-resistant gloves rhinorrhea followed by gastrointestinal over 15-30 min. Followed by [double-layered], clothing, steel-toe, and respiratory symptoms with extended 4-8 mg/kg/hr IV infusion and boots) if operating within the durations of exposure.3 OR hot or warm zone.8 Specific federal Exposure to high concentrations 500 mg/h infusion decontamination teams are able to of vapor induces convulsions, flaccid IM Mild Symptoms: 600 mg x3 be mobilized; however, for the initial paralysis, loss of consciousness, and every 15 minutes incident response, decontamination ultimately respiratory failure. The Severe Symptoms: 600 mg will fall on the local institution and severity is due to nerve agent vapor being in rapid succession not to local emergency response resources. easily absorbed in the respiratory tract. It exceed 1800 mg total initial Personal provider safety is is so potent that it exerts its effects within dose. paramount! You cannot treat others if seconds of exposure.3 For persistent symptoms you become a casualty! Treatment repeat the series of three Conclusion Initial therapy should focus on injections 1 hr after the last injection Nerve agent attacks have the removing the patient’s clothes and potential to quickly inflict a high decontamination to avoid further The only class of antiepileptics number of casualties. As emergency skin absorption followed by assessing effective in the management of medicine providers, we will be some the patient’s airway, breathing, and seizures induced by nerve agents are of the first providers to treat victims of circulation. The priority MUST be benzodiazepines. The management of such an attack. Our ability to recognize decontamination.7 status epilepticus due to nerve agent and properly treat these patients is Atropine remains the cornerstone of exposure requires higher doses of paramount to mitigating the damage cholinergic toxicity treatment since its anti-epileptic agents than conventional from such an event. Of course, providers mechanism of action works as an seizure therapy. Animal studies that must always be mindful to protect acetylcholine receptor antagonist. The have been extrapolated to humans themselves first and foremost. ¬ dose of atropine is based on the severity of symptoms. 4,5 estimate that doses as high as 30-40 mg of diazepam may be required to break TAKE-HOME POINTS TABLE 1. Dosing of Atropine for seizures due to nerve agent exposure.1 Cholinergic Toxicity ü Symptoms: Salivation, Provider Considerations Symptoms Dose lacrimation, urination, Your safety and the safety of 1 Mild 0.8 mg IM defecation, GI upset, emesis the ED must be the No. 1 priority Definite SLUDGE 2 mg IM q1hr during any nerve agent attack. Proper ü Treatment: Decontamination, 1 or more Mild decontamination and disaster planning Atropine and 2-PAM Chloride 1 mild symptom with at a hospital-level must be performed on no effect in 30 min ü Personal safety and a regular basis to ensure preparedness Be aware that you may have to utilize for such an event.7 decontamination are the most 2-3 times this dose in severe poisoning The ED (and hospital) should important considerations for situations (4-6 mg) titrated to decrease in be immediately locked down with nerve agent attacks. symptoms.5 controlled entry and exit once References available online June/July 2020 | EM Resident 15
WILDERNESS MEDICINE Winter Is Still Coming! Reviewing Accidental Hypothermia Brendan A. Mulcahy, DO, PHP, PA include the extremes of age, who have a Respiratory status may become Chief Resident, Emergency Medicine weakened ability to thermoregulate. tenuous as the initial tachypnea settles Allegheny General Hospital and eventually leads to respiratory Clinical Manifestations S ince the dawn of time, biological depression as core temperature continues Cold exposure can lead to an life has been affected by the to drop. Pulmonary edema and aspiration incredibly variable clinical presentation. extremes of temperature. pneumonia are common findings in the As the body temperature begins to Militarily, wars have been won and profoundly hypothermic patient. decrease — breathing, circulation, and lost due to the devastation brought on Prehospital Management level of consciousness are affected. by hypothermia. Hannibal lost nearly Below 95°F, patients will begin to The prehospital management of a half his men in the Second Punic have decreased cognitive function and suspected hypothermic patient can be War. Napoleon’s army was crippled difficulty with fine motor dexterity. broken down to careful movement, basic in the harsh winter of Russia in 1812. Hypertension and tachycardia quickly and advanced life support, passive and Arguably the greatest American progress to cardiac instability with active rewarming, and transportation to generation suffered through the associated hypotension, bradycardia, an appropriate center. There is a concept infamous European winters of WWII. and ultimately dysrhythmia. EKG known as Rescue Collapse, which refers Unfortunately, accidental hypothermia findings can consist of bradycardia, to the cardiac instability that is caused remains a substantial cause of death in QRS widening, prolonged PR and QT by the sheer movement of a patient our developed nation with nearly 1500 intervals, as well as the classic Osborn suffering from severe hypothermia. Even people dying yearly. In 1999, a Swedish wave. basic movements can cause ventricular physician suffered from one of the lowest disturbance leading to fatal arrhythmia. FIGURE 1. Osborn Wave recorded hypothermia cases, with a core Emergency Department temperature of 13.7°C after 9 hours of Management resuscitation — including initiating of Determining an accurate core body ECMO. temperature can often be difficult but Pathophysiology remains paramount in the management Accidental hypothermia refers to of the hypothermic patient. An an involuntary drop in the body’s core esophageal probe is a preferred method temperature below 35°C (95°F). As the in your intubated patients. This is closely body cools with cold exposure, there is followed by the bladder probe. If unable a natural response to maintain a normal to obtain an esophageal or bladder core temperature, with involuntary temperature, then rectal temperature shivering and active movement. The becomes the ideal method. Modified ability to regulate temperature and advanced life support should be initiated respond appropriately is multifactorial as soon as possible, with the first and depending on age, exposure, health, foremost focus remaining on rewarming nutrition, medications, and intoxicating the patient. Pharmacologic interventions, substances. In the urban setting, the such as epinephrine and other vasoactive majority of patients presenting with agents, can be arrhythmogenic while accidental hypothermia are the homeless having little to no effect, and thus should and alcoholics. Other at-risk populations generally be avoided. Most arrhythmias 16 EMRA | emra.org • emresident.org
convert spontaneously into normal until the temperature is above 30°C. potassium greater than 12 mmol sinus rhythm during rewarming. Transvenous pacing is considered per liter (10 mmol per liter in some Defibrillation can be attempted if hazardous for hypothermia-induced institutions) may be used as a hard stop necessary but is typically unsuccessful bradydysrhythmias. for whether or not CPR may provide until the core temperature is above 28- Serum potassium levels have been benefit. There is no consensus on how 30°C. If defibrillation is unsuccessful, a controversial marker of non-survival. hyperkalemia is best treated in levels then further attempts should be delayed Research has suggested that serum less than 12mmol per liter in the non- cardiac arrest patient. TABLE 1. Staging and Management of Accidental Hypothermia Disposition Typical Core The disposition of the patient Stage Clinical Symptoms Temperature Treatment is highly variable depending on the HT I Conscious, shivering 32 – 35°C Warm environment and clothing, degree of hypothermia and response to warm sweet drinks, and active therapies administered. Patients who movement (if possible) are classified as mild to moderate may HT II Impaired consciousness, 28 –
You can also read