Prehospital paediatric emergency care
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26 Review Articles Medical Education Prehospital paediatric emergency care Citation: Kaufmann J, Laschat M, Wappler F: Prehospital paediatric emergency care. Anästh Intensivmed 2020;61:026–037. DOI: 10.19224/ai2020.026 Summary more, competency and technical re 1 Abteilung für Kinderanästhesie, Kinderkrankenhaus der Kliniken der Stadt sources are not identical to those found Because prehospital paediatric emer- Köln gGmbH in a specialised environment, e.g. a (Direktor: Prof. Dr. F. Wappler) gency care is commonly rendered by paediatric emergency department. In a 2 Fakultät für Gesundheit, Universität non-specialist teams, always operating Witten/Herdecke prehospital environment, paediatric in a suboptimal environment, simple (Dekan: Prof. Dr. S. Wirth) emergencies and – for example – en- and feasible treatment recommendations dotracheal intubation are so uncommon are required. First and foremost, these that practice solely in this environment are provided by the resuscitation guide- cannot provide for advanced experience lines, which provide recommendations [1]. consistent with the above premise not only for cardiac arrest but for most other important situations. The laryngeal mask More than 80% of emergency physi- airway and the intraosseous needle are cians are afraid of being over- essential technical adjuncts for airway whelmed by paediatric emergencies management and venous access respec- or have experienced overwhelming tively. Equipment must be provisioned in such a situation [2]. for each and every age bracket. Simple basic principles and support provided Complex deficits have been described by references and aids can increase the in the context of simulated scenarios safety of drug administration. Sound [3] and prehospital emergencies [4]; for individual and institutional preparations example, difficulties with endotracheal for paediatric emergencies ensure safe intubation arose in 2/3 of children initial care of the child prior to ongoing with head injuries, whilst the same was treatment provided by specialists. only true of 1/5 of adults in the same health care setting. At the same time, Introduction intravenous access was successfully established in 86% of adults investi When considering prehospital paediat- gated, whilst the same could only be ric emergency care, it is imperative to said of 66% of children [5]. The European develop strategies based on a realistic Resuscitation Council (ERC) Guidelines analysis of circumstances and available note that due to real-life limitations, resources, aiming to provide care at the recommendations must be “simple as close to optimum level as possible. and feasible” [6]. Even though it may Because the circumstances under which seem remarkable to read this in the Keywords prehospital care is provided – consider preamble of a guideline, it is precisely Prehospital emergency care for example the location, e.g. at the this basic nature, seeking compromise, – Children – Drug safety – roadside – can per se be suboptimal, avoiding excessive burdens on the user Treatment recommendations compromise is indispensable. Further and providing a clear, easily remembered
Medical Education Review Articles 27 and practicable course of action which amenable to defibrillation (approx. 5% – due to their relatively high oxygen con- is its greatest quality. It is as such that of cases) underscores this mechanism. sumption and small pulmonary residual these guidelines offer an essential con- volume relative to body weight – the tribution to safe paediatric emergency Due to the typical pathophysiology reserve in children is small and they will care. of cardiac arrest, oxygenation and suffer a decrease in oxygen saturation Based on the aforementioned prerequi- ventilation are the most important within seconds following respiratory sites, this review takes into account measures in paediatric resuscitation. arrest. On the other hand, the anatomy the feasibility and effectivity of recom- is advantageous when compared with mended measures and adjuvants. Those that of the adult, with the larynx situated • As demonstrated by clear evidence measures which are either indispensable relatively higher and a factually difficult and ascertained by all international (e.g. intraosseous access) or which – airway being rather less common. It has guidelines, resuscitation of a newborn whilst requiring only a small effort – been shown that experience and clear is not possible without successful would be expected to significantly en- strategies can significantly increase ventilation, and chest compressions hance the safety of paediatric emergency safety when managing the paediatric without ventilation are actually care (e.g. the laryngeal mask airway) airway. neither helpful nor indicated [10,11]. are emphasised. A potential desire for • Whilst, at least for lay persons Airway management paediatric emergency care to be rendered providing telephone-guided aid, Only approximately 5% of prehospital solely by designated experts in the field resuscitation of adults may be emergencies in Germany involve chil- is surely an example of the opposite – a performed forgoing ventilation and dren, and of those only approximately measure requiring insurmountable effort, providing chest compressions only 5% require endotracheal intubation. especially considering that the required [12], the resuscitation of children Therefore, statistically speaking, emer- number of experts couldn’t even be pro- has been shown to be associated gency physicians will perform prehos- vided. Good preparation in a “protected with a significantly higher rate of pital endotracheal intubation of a child environment” (e.g. simulated scenarios), survival with good neurological once every 3 years, and of an infant once knowledge of current, simple, structured every 13 years [1]. outcome when lay persons provide guidelines and the use of adjuvants chest compressions and rescue enable non-specialised emergency phy- breaths [13]. Airway management routine cannot sicians to provide safe care [7]. • A further observational study involv- be established only by experience as ing prehospital paediatric resus an emergency physician. Typical challenges citation also showed conventional resuscitation incorporating ventilation Even in paediatric emergency depart- Oxygenation to be superior. A relatively small ments, emergency intubation performed Significance of ventilation for paediatric group of children who received only by paediatric medical staff was asso- emergencies ventilations without chest com- ciated with a serious drop in oxygen pressions showed even better “good In contrast to adult resuscitation, in saturation in almost half of the cases. 2 neurological” outcomes [14]. This which cardiac arrest mostly arises from out of 116 children even suffered hy- group was too small to deliver a a cardiac incident, in children and poxic cardiac arrest [15]. Prehospital statistically definitive result, but the especially in a prehospital environment, intubation associated with a lower rate finding underscores the importance respiratory causes are usually foremost of complications and higher rate of suc- of ventilation for the survival of [8]. Here, cardiac arrest is typically the cess can only be achieved by physicians children even outside the neonatal result of a respiratory incident leading to who intubate children on an everyday period. myocardial hypoxia. Whilst in an ideal basis. It is for these reasons that the ERC • In addition, clinical experience shows scenario, adults whose cardiocirculatory guidelines note that only those who have very clearly that infants and toddlers arrest due to ventricular fibrillation is safe command of drugs required for rapidly terminated by defibrillation cannot be resuscitated without intubation and are proficient in preoxy- won’t necessarily suffer tissue hypoxia, ventilation. As such, measures and genation and intubation should consider the respiratory cause of cardiac arrest adjuncts which enable safe ventilation prehospital intubation [6]. In all other in children means that serious organ of children are indispensable and, cases supraglottic airways should be damage has already ensued. This is a whilst requiring only a small effort, the airway adjuncts of choice. Under no major factor in the lower rate of survival have a significant effect on patient circumstances may repeated intubation in infants following cardiac arrest when survival. attempts be made, as these may lead to compared with youths or adults [9]. A Even outside of resuscitation, providing prolonged apnoea and can cause swell- more favourable rate of survival in those oxygenation and ventilation to children ing and bleeding, leading to a total loss few children presenting a cardiac rhythm takes on a central role. This is because of the airway.
28 Review Articles Medical Education A prehospital trial involving more than Working Group for Paediatric Anaes- recommendation that invasive tech- 800 children suffering grave conditions thesia (WAKKA) of the German Society niques (cricothyrotomy, tracheotomy, (cardiac arrest, multiple trauma, head of Anaesthesiology and Intensive Care surgical airway) are never required. injuries) failed to show any difference in (DGAI) [17]. However, the authors are Needle cricothyrotomy cannot real- the survival rate or neurological outcome of the opinion that laryngoscopy should istically be performed on infants and between those primarily successfully be performed at an early stage of man- toddlers as the location coincides with intubated and those who were mask agement, especially in a prehospital the narrowest section of the paediatric ventilated [16]. Seeing then that even setting. This way airway obstruction airway and the short neck forces the successful intubation cannot positively by a foreign body or secretions can operator to adopt a very steep approach influence the outcome, the rationale be- be detected at an early phase. It is not [18, 19]. If anything, needle tracheot- hind intubation needs to be questioned. necessary to force the laryngoscope into omy, which likewise is difficult, should However, mask ventilation by itself is a deep position as for intubation; instead be attempted; the procedure is possible certainly also not an ideal ventilation it can be sufficient simply to open and with a less steep approach, and the light up the mouth, making it possible tracheal lumen is wider at this location strategy in a prehospital setting; it binds to detect the aforementioned compli- [20]. If at all possible, however, surgical at least one person continuously and can cations, suction the airway or remove a tracheotomy – a procedure which can be be difficult to perform. At that point at foreign body using Magill forceps. performed by an experienced surgeon the latest, the use of a supraglottic airway (including paediatric surgeons) within is required. a small number of minutes – should be For situations when mask ventilation is It is extremely unlikely that, follow- preferred [21]. not successful, a clear and simple strat- ing immediate and complete imple- mentation of the measures set out, The laryngeal mask airway (LM) is the egy needs to be available for immediate airway adjunct which has been most ventilation should remain impossible recall and easy implementation (Fig. 1). thoroughly examined in good clinical by the point at which a laryngeal The measures set out should be es- trials for both elective and emergency mask airway is used. calated step by step until ventilation of use, is most commonly used, and as the child is successful. To a significant such is the supraglottic airway adjunct extent, the algorithm equates to the Based on their own experience however, which can best be recommended for recommendations of the Scientific the authors do not share the WAKKA use in children from 1.5 kg body weight (BW) upwards [22]. Evidence for the use of the laryngeal tube (LT) is not Figure 1 comparable and consists solely of a small number of studies demonstrating mask ventilation impossible successful use in children from 10 kg body weight upwards. Despite this fact, the LT is used surprisingly often in activate CALL FOR HELP prehospital settings. However, according EMERGENCY PLAN e.g. consultant, medical supervisor to current consensus reached by numer- ous professional bodies, provisioning escalate until ventilation successful the LT only whilst forgoing the LM as DIRECT LARYNGOSCOPY the clearly “better” airway adjunct, remove foreign bodies, (to exclude e.g. foreign bodies, blood, treat laryngospasm cannot be recommended. At the same secrections, swabs, spasm) time, provisioning both devices (LM and LT) and thereby promoting confusion, increasing costs and taking up addi- 1) jaw thrust, two-person mask ventilation, Guedel airway tional space would seem less than ideal 2) increase anaesthetic depth, decompress stomach 3) supraglottic airways (e.g. nasopharyngeal tube, LM) [22]. For a brief period at least, during 4) neuromuscular blockade intubation or when neither an LM nor 5) (careful) intubation attempt an LT are available, sufficient ventilation 6) intubation aids (e.g. video laryngoscope, bronchoscope) can almost always be provided using a 7) needle tracheotomy (cricothyrotomy) nasopharyngeal tube (pharyngeal tube; a nasally inserted tube in the “Wendl position”) whilst manually providing no success: surgical airway closure of the mouth and contralateral Algorithm for the management of difficult mask ventilation in a child. nostril. It is imperative that all the afore- mentioned adjuncts and techniques
Medical Education Review Articles 29 should be trained in the context of job health require larger fluid volumes. pulse oximeter plethysmograph can shadowing or through participation in The fluid deficit can be categorised point to serious hypovolaemia. simulated scenarios before they are used by weighing the child or by clinical Deficits resulting in haemodynamic dis- in paediatric care. assessment (Tab. 2, taken from [27]). ruption and any other situation in which In addition, respiratory variation of the blood pressure is insufficient with Cardiocirculatory support Blood pressure by age There is good evidence that age adapted Table 1 normal blood pressure values (Tab. 1) Age adapted blood pressure range (min – max) considered safe [25]. are a sufficient therapeutic goal even in Age group Age adapted blood pressure emergency situations with increased cer- Preterms (approximation) Mean arterial pressure = gestational age in weeks ebral pressure [23] and as such should systolic pressure mean arterial pressure be achieved, but not overstepped [24]. It is also clear that failing to reach these Preterms 55 – 75 35 – 45 values can cause serious damage. 0 – 3 months 65 – 85 45 – 55 3 – 6 months 70 – 90 50 – 65 Rational infusion therapy Adequate fluid therapy is the basis of 6 – 12 months 80 – 100 55 – 65 sufficient circulatory support. To avoid 1 – 3 years 90 – 105 55 – 70 hyponatraemia and cerebral oedema 3 – 6 years 95 – 110 60 – 75 only balanced electrolyte solutions may 6 – 12 years 100 – 120 60 – 75 be used. When treating infants (< 1 year > 12 years 110 – 135 65 – 85 of age), the use of solutions containing additional glucose (1%) is expedient, if available in the prehospital setting. Patient safety considerations, however, Table 2 mean that individual blending of such Estimating fluid loss (dehydration) based on clinical signs [27]. solutions cannot be recommended. Signs and minimal/no slight/medium severe Instead, intravenous boli of 0.1 – 0.2 g/ Symptoms dehydration dehydration dehydration kg BW glucose can be used to treat low Weight loss < 3% 3 – 8% ≥ 9% blood glucose levels, which should be Consciousness, health normal agitated, irritable apathetic, determined for every infant and when or tired lethargic, confronted with altered consciousness. unconscious Drinking normal thirsty, drinks greedily drinks poorly or is Acetate-based balanced electrolyte unable to drink solutions are the most suitable fluids Heart rate normal normal to increased tachycardia; severen for maintenance and fluid replenish- cases: bradycardia ment. Pulse quality normal normal to decreased weak or not palpable (comparison of central vs. peripheral pulses) Basal requirements can be calculated Respirations normal normal to deep; deep breathing using the 4-2-1 rule: increased resp. rate (acidosis!) • 4 ml/kg/h for every kg for the first Eyes normal sunken deeply sunken 10 kg BW, • 2 ml/kg/h for every kg for the next Tears present reduced none 10 kg BW, Mucosa moist dry desiccated • 1 ml/kg/h for every additional kg Skin folds smooth delayed smoothing, standing > 2 s BW. immediately but ≤ 2 s To balance deficits caused e.g. by preop- Capillary refill normal prolonged (< 3 s) severely prolonged (> 3 s) erative fasting, in keeping with the above Urine production normal reduced oliguria or anuria recommendation for basal requirements, the basal requirement for the first hour Fluid loss < 30 mild 30 – 50 > 100 (ml/kg BW)* medium 50 – 100 can be assumed to be a blanket 10 ml/ kg/h [26]. Children suffering exsiccosis Resp.: Respiratory; BW: Body weight; * for children < 6 years of age; school children and adults require smaller fluid volumes due to their in the context of vomiting and diarrhoea smaller extracellular space relative to body weight. or inadequate fluid intake due to poor
30 Review Articles Medical Education out clear cause should be treated by adrenaline should be carefully titrat- ml, from the 7th year of life on 0.5 to administration of a 20 ml/kg BW fluid ed and used only in conjunction with 1.0 ml administered intramuscularly bolus with subsequent re-evaluation an inotropic catecholamine. or intravenously as a single dose…” [6]. Current knowledge suggests that for Experience suggests that a quarter of this children with fever and serious infec- dose should be given initially and the In prehospital situations, safe and rapid tious disease (e.g. pneumonia, sepsis) drug then titrated according to effect. It treatment with catecholamines can be fluid should, when possible, only be is also possible to bolus 0.5 (-1) µg/kg administered in this fashion once [28] difficult to implement, particularly be cause drug choice and dose are often adrenaline, whereby the effect is short and catecholamines introduced early. lived and repeat doses may be required. Repeated administration may be neces unfamiliar, and dopamine and in some sary, especially when treating exsiccosis cases syringe drivers, are not routinely provisioned by emergency services. Injecting the contents of a 1 ml = 1 mg and hypovolaemia; however, an (ad- ditional) drop in haemoglobin levels As such, it is necessary to stabilise ampoule of adrenaline into a bottle through haemodilution should be kept the cardio-circulatory situation during containing 100 ml of isotonic saline in mind. Whilst the use of colloids is transfer to a paediatric intensive care or (NaCl 0.9%) results in a concentra- typically not necessary and their value emergency facility using a simple and tion of 10 µg/ml, which can then be unclear, attempted treatment of an safe concept. Cafedrine/Theodrenaline dosed highly accurately using 1 ml otherwise unstable circulatory situation (Akrinor®) is an example of a suitable syringes with a 0.01 ml scale. by admin istration of 5 – 10 ml/kg BW, drug. The manufacturer’s summary of taking the manufacturer’s recommen- product characteristics recommends the following doses [43]: “…Children: de- Gaining access for drug administration dations regarding contraindications and pending on the severity of the condition, and fluid therapy maximum doses into account (e.g. 6% HES 130/0,42: 30 ml/kg), can be justi- in the 1st and 2nd years of life 0.2 – 0.4 Placement of an intravenous catheter fied [27]. ml, in the 3rd to 6th years of life 0.4 – 0.6 can often be difficult in paediatric emer- Rational use of catecholamines The aim of treatment with catechola- Table 3 mines is to re-establish adequate perfu- Prehospital treatment of children with haemodynamic shock using catecholamines. sion and oxygenation of the organs. A Type of shock Catechola- Dose Rules of thumb significant intraindividual variability in mine a) Preparation pharmacokinetics and -dynamics [29] b) Dosing and the effect of catecholamines can be c) Escalating treatment observed in infants and toddlers (due, hypody dopamine 5 – 20 µg/kg/min a) 1 ampoule dopamine 5 ml = 50 mg; amongst other things, to individual re- namic/ 1 ml = 10 mg + 29 ml NaCl 0.9% cardiogenic, → 0.33 mg/ml ceptor density and intracellular response b) rate (ml/h)) = body weight equating to preterms and [30,31]). When there is no response to newborns 6 µg/kg/min treatment, increasing the dose by one c) dobutamine, hydrocortisone, adrenaline order of magnitude is recommended, hypody dobutamine 5 – 20 µg/kg/min a) 1 ampoule dobutamine 50 ml = 250 mg; titrating down once an effect ensues [32]. namic/ draw up undiluted → 5 mg/ml cardiogenic, b) rate (ml/h) = 1/10th body weight age Another peculiarity when compared to all other age brackets equating to 8 µg/kg/min the treatment of adults is the use of do- brackets pamine which, on the basis of available hypovolae- adrenaline 0.05 – 2.5 µg/kg/min a) 1 ampoule adrenaline 1 ml = 1 mg; data, is still the most commonly used mic 6 ml = 6 mg + 44 ml NaCl 0.9% catecholamine in newborns, infants and → 0.12 mg/ml b) rate (ml/h) = 1/10th body weight equating toddlers [32,33]. Table 3 summarises the to 0.2 µg/kg/min catecholamine of choice for treatment septic adrenaline 0.05 – 2.5 µg/kg/min a) 1 ampoule adrenaline 1 ml = 1 mg; of different types of shock in children 6 ml = 6 mg + 44 ml NaCl 0.9% based on current guidelines [34–42] and → 0.12 mg/ml provides “rules of thumb” for prepara- b) rate (ml/h) = 1/10th body weight equating to 0.2 µg/kg/min tion of and dosing with syringe drivers. c) noradrenaline carefully titrated, only if extremities warm Even for septic shock, noradrenaline additionally, noradrena- 0.05 – 2.5 µg/kg/min a) 1 ampoule Noradrenalin 1 ml = 1 mg; is not the catecholamine of choice in as required: line 6 ml = 6 mg + 44 ml NaCl 0.9% → 0.12 mg/ml children because the increase in af- b) rate (ml/h) = 1/10th body weight equating terload rapidly leads to a decrease to 0.2 µg/kg/min in contractility [32]. As such, nor
Medical Education Review Articles 31 gencies and may be impossible in some ministration of drugs, and most which point on overdosing adrenaline is circumstances, e.g. exsiccosis or cardiac drugs achieve bioavailability similar potentially fatal, there is no doubt that arrest. In prehospital emergencies of this to that following intravenous admin- overdosing by an order of magnitude kind, placement of a central venous line istration. (1,000% of the recommended dose; is inarguably not a suitable alternative. 100 µg/kg BW) is not compatible with survival [47]. All international guidelines Doses similar to those used for intra- The intraosseous (IO) needle is a warn explicitly of overdosing adrena venous administration can often be quick, easy and safe adjunct for ac- line during resuscitation of paediatric used for intranasal administration. The cess to the vascular system. patients of any age. Vigilance derived total should always be split across both simply from awareness of the danger nostrils so as to utilise the maximum and recognition of personal fallibility is Complications are rare and are only possible mucosal surface. Administered pivotal for drug safety [48]. to be expected when the needle remains volumes should preferably be 0.2 – 0.3 ml in situ for prolonged periods of time. The per nostril and should not exceed 1 ml. Using simple measures can help achieve current ERC Guidelines recommend the Copious quantities of secretions or blood a significant increase in drug safety when use of an IO needle in all critically ill can inhibit adequate resorption from the caring for children [49,59]. children in whom venous access has not nose, making cleansing or selection of an been able to be established within one alternative method necessary. Published It can safely be assumed that any minute [6]. The most suitable and typi- experience is available especially for measure which reduces the cogni- cal location in children is the proximal • midazolam tive load of the prescribing physician anterior tibia. Use of IO needles can • fentanyl will increase drug safety in children. be trained using chicken bones, which • sufentanil provide for very realistic conditions. • ketamine and It is essential that training should take In a test of written orders for adrenaline • dexmedetomidine administration for resuscitation, for ex- place before taking on work in emer- gency care. Intraosseous drills (EZ-IO®, ample, use of a simple table was shown Drug safety in paediatric emergency Teleflex), which are widely available in to avoid nine out of ten single order of care Germany, are not suitable for newborns magnitude errors, and the same fraction and small infants weighing less than 3 kg. of errors by two orders of magnitude Grave errors occur regularly during The tibial spongiosa is so shallow in [51]. A similar effect was also seen paediatric emergency care, even in these children that there is a risk the when the Paediatric Emergency Ruler specialised facilities such as paediat- posterior cortex could be pierced, lead- (“PädNFL”; “Pädiatrisches Notfalllineal”; ric emergency departments. ing to serious damage or even re- www.notfalllineal.de) was used during quiring amputation of the lower leg treatment of “real” prehospital paediat- [44]. Instead, suitable manual needles Because suitable doses have to be cal- ric emergencies: nine out of ten severe need to be provisioned. The authors culated on an individual basis, mistakes dosing errors (> 300% of the recom- have had very good experience using such as misplacing the decimal point can mended dose) of all drugs studied were 18 g butterfly needles in these situations, lead to results which are off by an order avoided [52]. With regard to adrenaline, as is also recommended elsewhere of magnitude. Whilst typical doses feel which was overdosed by more than [45]. They can easily be gripped by the familiar when treating adults, the wide 300% of the recommended dose in all wings, are very sharp and have a tube range of paediatric patients – ranging from cases where the PädNFL was not used, attached, simplifying the use. infants to youths – precludes familiarity no mistakes were made when using the For on-off administration of sedatives with correct doses. Even doses off by an PädNFL. and analgesics, the intranasal route us- order of magnitude can be serviced from Body weight is a deciding factor for drug ing an atomiser (“mucosal atomization a single ampoule, making recognition administration and must, as such, be device” – MAD) is an option. The intense of the error less likely. Because prehos taken into meticulous consideration. In vascularisation of the nasal mucosa and pital care is neither rendered in a spe- a prehospital analysis in Germany only the close proximity to the brain lead to a cialised environment, nor by specialised 0.5% of emergency physicians’ records rapid onset of action comparable with personnel [6], significantly increased specified the weight of the child [52]. that following intravenous administra- error rates are incurred. A study in the If the parents can give the weight of tion. USA showed that adrenaline was ad- the child, that weight should be used. ministered incorrectly 60% of the time, When the weight is unknown however, Owing to venous drainage avoiding and that the average overdose was 808% estimates based on age are unhelpful liver passage, first-pass metabolism of the recommended 10 µg/kg BW and weight should be estimated based does not occur following nasal ad- dose [46]. Whilst it is not known from on length.
32 Review Articles Medical Education Team communication is pivotal. Regard- lymphadenopathy in the context of ing external signs (such as bruising or less of any hierarchy, all those involved infection, and unexplained events are neurological symptoms). For this reason, must check every order in its entirety described below. serious trauma requires neurocranial (weight of the child, desired dose per imaging, preferably in a paediatric Trauma kg BW, calculated dose and quantity to radiology department. Prior to fusion be administered) and acknowledge it by Most injuries are isolated to a single ex- of the fontanelles, ultrasound is a rapid, repeating the entire order before a drug tremity. The same basic principles used radiation-free imaging tool, while all is administered [53]. When 1 ml syringes in adult trauma care should be applied, other children with a score of < 12 on with a 0.01 ml scale are used, dilution adequate analgesia provided, and the the Paediatric Glasgow Coma Scale can be avoided for most drugs so long injury stabilised carefully. Using sup- should undergo computed tomography as administration is followed by flushing positories in an emergency situation is (CT) or magnetic resonance imaging with NaCl 0.9%. Every emergency unlikely to provide a rapid and adequate (MRI). Bony injuries are better seen physician should have paediatric phar- effect. Instead, administering opioids on CT, whilst brainstem injuries and macologic information (e.g. age-specific such as fentanyl via a nasal atomiser [54] haemorrhage are better represented on contraindications and doses) at their or using one of the alternatives set out in MRI. Subgaleal haemorrhage represents disposal on scene, e.g. in the shape of a Table 4 [55] is well suited. a special type of head injury which tabular compilation or pocketbook. does not occur in adults, and which As a rule, care for children with mul- involves haemorrhage between the scalp Common paediatric disorders tiple trauma follows the same basic and the calvaria. As the haematoma may Preliminary remarks principles which apply to adult care spread around the whole head, blood [56]. loss may become life-threatening and must be recognised as such, triggering The three most common prehospital blood transfusion if required. External paediatric disorders, each account- Owing to their proportions and skeletal compression is not helpful, and obsolete ing for approximately a third of cas- development, however, up to 90% in the case of open fontanelles. Those es, are injuries, respiratory disorders of children with serious injuries also providing prehospital care should be and seizures. have head injuries, while the chest and aware of subgaleal haemorrhage and abdomen are less commonly affected include assessment for this injury in their In addition to these three, intussuscep- when compared with adults. It is note trauma evaluation, which would other- tion (which does not occur in adults), worthy that children may regularly suffer wise be comparable with an appropriate abdominal pain caused by systemic serious intracranial injury without show- adult routine. In contrast, pelvic fractures leading to significant blood loss do not occur in toddlers. Table 4 Examples of suitable prehospital emergency analgesia. Respiratory emergencies Asthma Drug, mode of delivery Dose, Dosing interval Sudden occurrence of dyspnoea with an Piritramide (e.g. Dipidolor) • IV 0.05 – 0.1 mg/kg BW initial bolus expiratory stridor and prolonged expira- 0.025 mg/kg BW every 5 min until pain free tion should bring a diagnosis of asthma Morphine to mind. In addition to auscultation, • IV 0.05 – 0.1 mg/kg BW initial bolus the smaller the child, the more helpful 0.025 mg/kg BW every 5 min until pain free laying hands on the chest can be – bron- Fentanyl (ampoules containing 50 µg/ml) chospasm, secretions, consolidation and • IV 1 – 2 µg/kg BW initial bolus the breathing pattern can all be felt and 0.25 µg/kg BW every 5 min until pain free • intranasal using MAD 1.5 µg/kg BW (0.03 ml/kg BW) localised. Therapeutic measures (Tab. 5) don’t differ from those employed in Esketamine (e.g. Ketanest S, ampoules containing 5 mg/ml or 25 mg/ml) adults [7], and inhaled therapies don’t • rectal 10 mg/kg BW require age-based dose adjustment. • IV 0.5 – 1 mg/kg BW • intranasal using MAD 2 mg/kg KG Croup syndrome (stenosing laryngo Ketamine (e.g. Ketamin, ampoules tracheitis) containing 10 mg/ml or 50 mg/ml) Sudden occurrence of an inspiratory • rectal 15 – 20 mg/kg BW stridor together with a barking cough • IV 1 – 2 mg/kg BW • intranasal using MAD 4 mg/kg BW is usually caused by Croup syndrome which generally arises in conjunction MAD: mucosal atomization device (nasal atomiser). with viral infections, but which may
Medical Education Review Articles 33 Table 5 a smooth surface in a restive situation. Pharmacological treatment for asthma attacks (from [7]). Initially, the foreign body enters the trachea, causing an impressive bout of Nebulised treatment coughing, expelling the foreign object. Epinephrine (e.g. Infectokrupp®) up to 10 kg BW: 1 ml + 1 ml NaCl 0.9 % If instead the foreign body reaches the (= 4 mg) from 10 kg BW: 2 ml undiluted (= 8 mg) bronchial system, the child’s condition Salbutamol nebuliser solution (e.g. Sultanol® 5 – 10 drops (= 1.25 – 2.5 mg) will commonly improve [57]. However, sol.) (1 drop per year or 3 kg BW, minimum 3, in the course of things, the object may maximum 10 drops) in 2 ml NaCl 0.9% dislocate into the trachea causing a Ipratropium bromide solution (z. B. Atrovent® 5 – 10 pumps (= 0.125 – 0.25 mg) life-threatening situation. As such, sol.) Dose as for salbutamol, in 2 ml NaCl 0.9% following aspiration, children should Inhalation using a spacer always present to a competent hospital Salbutamol (e.g. Sultanol®) 1 – 2 puffs (0.1 – 0.2 mg) where any suspicion of aspiration should Fenoterol (e.g. Berotec®) 1 – 2 puffs (0.1 – 0.2 mg) be investigated by bronchoscopy. Chest Terbutaline (e.g. Bricanyl®) 1 – 2 puffs (0.25 – 0.5 mg) radiographs on the other hand do not Corticoids provide any helpful information [57]. Methylprednisolone (e.g. Urbason®) 2 – 4 mg/kg BW IV In the case of an unconscious child, the Prednisolone (e.g. Decortin H , Solu ® 2 – 10 mg/kg BW IV oral cavity must be inspected and swept Decortin®) without delay, followed immediately by Prednisone (e.g. Decortin®, Rectodelt®) 5 – 10 mg/kg BW (usually 100 mg) per rectum measures as set out in the resuscitation β2 mimetics IM guidelines. These describe in detail the measures to be taken in case of foreign e.g. Epinephrine or Terbutaline 10 µg/kg BW (max. 300 µg) body aspiration (including, amongst Additional Options other things, the Heimlich manoeuvre Magnesium, Ketamine, Theophylline and back blows) [6]. The oral cavity should be inspected using a laryngo- scope as soon as possible, removing any occur spontaneously, and which in ever, unlike Croup syndrome, children visible foreign objects. If the condition turn is caused by subglottic swelling of with epiglottitis show signs of serious does not improve, the child should be mucous membranes. Croup is seldom bacterial infection including high fever intubated. If ventilation is not possible threatening and can be treated in an and notable poor general condition. via the correctly situated tube, attempts equivalent fashion to asthma. The differ- Preclinical intubation should only be should be made to push the foreign body ential diagnoses include tracheitis and attempted in dire straits and can be into one or the other main bronchus epiglottitis (see below), both of which extremely problematic in the presence by intentional deep insertion of the can be differentiated from Croup by a of purulent swelling of the epiglottis. The tube, following which ventilation of the prolonged progressing course and high receiving hospital should be informed unrestricted lung should be performed fever. In unvaccinated children espe- of the suspected diagnosis as early as after retracting the tube into the trachea. cially, hoarseness, inspiratory stridor and possible so as to be able to have an ex- If the aforementioned measures are not a barking cough – which can typically perienced team available for the patient successful, success is not to be expected be triggered by applying pressure on on arrival. Tracheitis, which cannot be and the child should be transferred to the tongue using a spatula – progressing differentiated from epiglottis clinically, hospital undergoing ongoing resusci- over days may indicate diphtheria, a has become the most common form of tation, where the foreign body can be disease once referred to as “real Croup”. life-threatening respiratory tract infec- removed from the trachea. tion. The diagnosis can only be made by Seizures Epiglottitis, Tracheitis bronchoscopy. As a rule, these children Although seizures in children are usually Since the introduction of the Haemophi- can be intubated without difficulty; even febrile, other possible causes must be lus influenza B vaccination, epiglottitis so, intubation should be performed considered: has become extremely rare, but does still using a fibreoptic scope, taking samples • hypoglycaemia occur because not all parents go through and ensuring precise placement of the • intoxication with recommended vaccinations – but tube at the same time. • head injury also because other pathogens can be causative. The clinical picture seen Foreign body aspiration Meningitis must be excluded in infants in epiglottitis is similar to that seen in Foreign body aspiration typically occurs suffering a febrile seizure without an croup syndrome and is characterised by when a playing child inserts something obvious focus of infection. Repeated inspiratory stridor and coughing. How- into their mouth or eats something with application of rectal drugs, which are
34 Review Articles Medical Education difficult to control and have a delayed risk of necrosis of the affected portions rare. Adherence to guideline-recom- onset of action, can cause overdose and of the intestines when untreated. The mended treatment of BRUE requires the respiratory depression. As such, the use diagnosis is made using sonography and emergency services to present children of drugs and routes of administration set treatment by reduction of intussuscep- for treatment by a consultant paedi- out in Table 6, leading to a rapid onset tion by insufflation of air or fluid can be atrician at a children’s hospital [58]. of action, would seem better suited [7]. provided by the radiology department of Following thorough examination by the any paediatric hospital. paediatrician, immediate discharge from Abdominal lymphadenopathy and Unexplained events hospital may be justified. intussusception Regardless of the focus of infection, Emergency services are regularly con- The role of parents during emer- toddlers regularly suffer swelling of fronted with reports of events perceived gency care the abdominal lymph nodes, causing to be life-threatening, whilst the elicited abdominal pain. This can lead to an history doesn’t provide for clear-cut Presence of parents erroneous diagnosis of an abdominal deductions and the child presents itself disorder, which in turn can sometimes in good health. Formerly an apparent Whenever possible, parents should even culminate in unwarranted surgery. life-threatening event (ALTE), this have the opportunity to be present expression has been replaced by the during treatment of their children. term brief resolved unexplained event Children complaining of abdominal (BRUE). This nomenclature was chosen pain must always be investigated for On one hand, parents are generally well so as to include events which had a focus of infection outside the ab- informed of the past medical history of not been interpreted as life-threatening. domen, e.g. by auscultation of the their child, can tell the precise weight Despite this, the term still defines a lungs and inspection of the tympanic and offer the only possibility to elicit a condition involving a change in membranes. history. On the other hand, it has been • muscle tone shown time and again that relevant • skin colour • consciousness psychopathologies are significantly less The swollen abdominal lymph nodes • and/or breathing. common in parents who were present may, however, actually cause a real for at least some of the treatment of their abdominal emergency, namely intus- A working diagnosis of BRUE is only child, even when the child died. As such, susception. This usually occurs at the permissible if a detailed history and the resuscitation guidelines recommend ileocecal junction and involves parts of examination by a paediatrician shows parents should be given the opportunity the intestine folding into one another, no further irregularities. Colloquially, the to be present during treatment of their typically triggering abrupt, severe spas- term “unexplained event” is often used. child, so long as their presence does not modic pain. Bloody diarrhoea may also Generally speaking, these events have a impact on the quality of medical care occur. Spontaneous reduction of intus- multitude of possible causes, including [6]. susception can occur, although delaying gastroesophageal reflux, seizures and treatment whilst hoping for spontaneous upper respiratory tract infections. Cardi- Child abuse and neglect resolution is not permissible as there is a opulmonary causes, however, are very It should not be overlooked, however, that parents may play a role in or be the cause of the illness or injury. Parents Table 6 smoking at home, for example, may be Pharmacological treatment for seizures. the sole cause of asthma in their child. Sublingual tablets To an often underestimated degree, Lorazepam (e.g. Tavor® Expidet®) < 0.05 mg/kg BW administered as a sublingual children may be the victims of violence tablet or neglect. The most recent available Intranasal administration figures show an incidence of 10 – 15% Midazolam* (e.g. Buccolam®, Dormicum®) 0.2 mg/kg BW (maximum 10 mg) in Germany, although a significant dark figure has to be assumed. A review article Lorazepam (e.g. Tavor® pro injectione) 0.1 mg/kg BW (maximum 4 mg) looking at head injuries in children Intravenous drug administration determined that a quarter of all injuries Clonazepam (e.g. Rivotril®) 0.05 – 0.1 mg/kg BW IV (max. 2 mg) in children under 2 years of age were Midazolam (e.g. Dormicum®) 0.1 – 0.2 mg/kg BW IV or intranasal inflicted by others [59]. Recognising Diazepam (e.g. Valium®) 0.05 – 0.2 mg/kg BW IV abuse gains particular importance with Thiopental (e.g. Trapanal®) 1 mg/kg BW IV the knowledge that violence and abuse are commonly not single occurrences * midazolam solutions for IV administration cause smarting when administered intranasally. but rather not only repeat themselves
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