Impact of "hypotension on arrival" on required surgical disciplines and usage of damage control protocols in severely injured patients.

BACKGROUND: For trauma patients with subsequent immediate surgery, it is unclear which surgical disciplines are most commonly required for treatment, and whether and to what extend this might depend on or change with "hypotension on arrival". It is also not known how frequently damage control protocols are used in daily practice and whether this might also be related to "hypotension on arrival". METHODS: A retrospective analysis of trauma patients from a German level 1 trauma centre and subsequent "immediate surgery" between 01/2017 and 09/2022 was performed. Patients with systolic blood pressure > 90 mmHg (group 1, no-shock) and < 90 mmHg (group 2, shock) on arrival were compared with regard to (a) most frequently required surgical disciplines, (b) usage of damage control protocols, and (c) outcome. A descriptive analysis was performed, and Fisher's exact test and the Mann‒Whitney U test were used to calculate differences between groups where appropriate. RESULTS: In total, 98 trauma patients with "immediate surgery" were included in our study. Of these, 61 (62%; group 1) were normotensive, and 37 (38%, group 2) were hypotensive on arrival. Hypotension on arrival was associated with a significant increase in the need for abdominal surgery procedures (group 1: 37.1 vs. group 2: 54.5%; p = 0.009), more frequent usage of damage control protocols (group 1: 59.0 vs. group 2: 75.6%; p = 0.019) and higher mortality (group 1: 5.5 vs. group 2: 24.3%; p 0.027). CONCLUSION: Our data from a German level 1 trauma centre proof that abdominal surgeons are most frequently required for the treatment of trauma patients with hypotension on arrival among all surgical disciplines (> thoracic surgery > vascular surgery > neurosurgery). Therefore, surgeons from these specialties must be available without delay to provide optimal trauma care.

COMBAT-C: COntrol of Major Bleeding by Application of Tourniquets over Clothing.

INTRODUCTION: External bleeding is the leading cause of preventable trauma-related death. In certain circumstances, tourniquet application over clothing may be necessary. Therefore, the aim of this study was to assess the effectiveness of tourniquets over different clothing setups. METHODS: Three windlass tourniquets (CAT, SAMXT, SOFTT-W) were applied over nine different clothing setups and without clothing on the Hapmed™ Tourniquet Trainer. We compared each tourniquet in each clothing setup to the tourniquet trainer that was not dressed, and we compared the three tourniquets within each clothing setup concerning blood loss, applied pressure and application time. Regression analysis of the effect of thickness, mean weight, mean deformation, application time, and applied pressure on blood loss was performed. RESULTS: Although blood loss was significantly greater in the CAT and SAMXT tourniquets when they were applied over leather motorcycle trousers, the overall findings showed that the clothing setups significantly reduced or did not affect blood loss. The mean blood loss was the lowest with CAT and the highest with SOFTT-W. The measured mean pressures were lower than 180 mmHg in four out of nine clothing setups with SOFTT-W, but CAT and SAMXT always exceeded this threshold. CAT had the fastest application time. Blood loss was significantly influenced by applied pressure and application time but was influenced to a far lesser degree by clothing parameters. CONCLUSION: The effects of the clothing setups were of little clinical relevance, except for leather motorcycle trousers. The effects of rugged protective equipment, e.g., hazard suits, are conceivable and need to be tested for specific garments with the tourniquet intended for use. No clothing parameter for predicting tourniquet effectiveness could be identified.

Hemostatics in patients with inhibited coagulation-A viscoelastic in-vitro analysis.

BACKGROUND: The military has used topical hemostatic agents to successfully treat life-threatening external bleeding for years. In contrast to the military environment, the general population are increasingly prescribed anticoagulants. There are only few comparative evaluations of topical hemostatic agents with anticoagulated human blood. It is important to understand the impact of these agents on those who take anticoagulants. STUDY DESIGN AND METHODS: Citrated blood of patients treated with enoxaparin, heparin, and acetylsalicylic acid, apixaban or phenprocoumon was incubated with different hemostatic agents (QuikClot Gauze, Celox Granules, Celox Gauze, Chito SAM 100, WoundClot Trauma Gauze, QuikClot Gauze Moulage Trainer and Kerlix) and rotational thromboelastometry was performed with non-activated thromboelastometry (NATEM reagent). RESULTS: All tested agents improved the onset of coagulation in all anticoagulants, mostly to a significant degree. Most significant improvements were produced by QuikClot Gauze and QuikClot Gauze Moulage Trainer, followed by the tested chitosans (Celox Granules, Celox Gauze, Chito SAM 100). Of the anticoagulant groups, the most significant improvements were seen in enoxaparin. This was followed in order by apixaban, heparin, and acetylsalicylic acid, and phenprocoumon. DISCUSSION: All the hemostatic agents tested were able to activate the clotting cascade earlier and initiate faster clot formation in anticoagulated blood. A definitive head-to-head comparison is not feasible, because of the limitations of an in-vitro analysis. However, the sometimes-presented hypothesis that kaolin-based hemostatic agents are ineffective in anticoagulated blood is inaccurate according to our data. Hemostasis with hemostatic agents appears most challenging with phenprocoumon.

Analysis of tourniquet pressure over military winter clothing and a short review of combat casualty care in cold weather warfare.

Cold weather warfare is of increasing importance. Haemorrhage is the most common preventable cause of death in military conflicts. We analysed the pressure of the Combat Application Tourniquet® Generation 7 (CAT), the SAM® Extremity Tourniquet (SAMXT) and the SOF® Tactical Tourniquet Wide Generation 4 (SOFTT) over different military cold weather clothing setups with a leg tourniquet trainer. We conducted a selective PubMed search and supplemented this with own experiences in cold weather medicine. The CAT and the SAMXT both reached the cut off value of 180mmHg in almost all applications. The SOFTT was unable to reach the 180mmHg limit in less than 50% of all applications in some clothing setups. We outline the influence of cold during military operations by presenting differences between military and civilian cold exposure. We propose a classification of winter warfare and identify caveats and alterations of Tactical Combat Casualty Care in cold weather warfare, with a special focus on control of bleeding. The application of tourniquets over military winter clothing is successful in principle, but effectiveness may vary for different tourniquet models. Soldiers are more affected and impaired by cold than civilians. Military commanders must be made aware of medical alterations in cold weather warfare.

Prehospital predictors of the need for transfusion in patients with major trauma.

PURPOSE: Severe haemorrhage is a leading cause of early mortality following major trauma. By early identification of patients at risk, blood transfusion could already be initiated in the prehospital period. Aim of the study was to evaluate the extent to which prehospital lactate and base excess, which are known to be associated with trauma-induced coagulopathy, and additional clinical parameters are associated with the need for early transfusion. METHODS: In this prospective, single-centre observational study, trauma patients treated by a helicopter emergency medical service were included, regardless of the injury severity. Patients with coagulation-influencing drugs in long-term therapy were excluded. Blood samples obtained at the beginning of the prehospital treatment were analysed. Primary outcome was the association of lactate and base excess with the need for early transfusion (resuscitation room or immediate surgery). Receiver operating characteristic curves were created, and the area under the curve (AUROC) was calculated. RESULTS: Between 2015 and 2018, 21 out of 130 adult trauma patients received blood products during the early in-hospital treatment. Both prehospital lactate and base excess were associated with the transfusion (AUROC 0.731 and 0.798, respectively). The optimal calculated cut-off values were 4 mmol/l (lactate) and - 2.5 mmol/l (base excess). When circulatory instability and suspected relevant bleeding were included, the association further improved (AUROC 0.871 and 0.866, respectively). CONCLUSION: Prehospital lactate and base excess could be used in combination with other clinical parameters as indicators of the need for early transfusion. This relationship has yet to be confirmed in the current validation study. TRIAL REGISTRATION: German Clinical Trials Register, www.drks.de (No. DRKS 00009559).

Mechanical chest compression devices under special circumstances.

AIM: According to the current resuscitation guidelines, the use of mechanical chest compression devices could be considered under special circumstances like transport with ongoing resuscitation or long-term resuscitation. The aim of this study was to investigate whether survival is improved using mechanical devices under such circumstances. METHODS: Out-of-hospital cardiac arrests from all high-quality data centres of the German Resuscitation Registry from 2007 to 2020 were investigated. The use of mechanical devices was compared separately for transport with ongoing resuscitation, prolonged resuscitation (>45 min), and resuscitation with fibrinolytic agents applied. Baseline characteristics, 30-day survival/discharged alive, and neurological function at discharge were analysed descriptively; and 30-day survival/discharged alive was additionally analysed using multivariate logistic regression. RESULTS: Overall, patients who were treated with a mechanical device tended to be younger and were significantly more likely to have a witnessed cardiac arrest and a shockable initial rhythm. During the study period, 4,851 patients were transported to hospital with ongoing resuscitation (devices used in 44.2%). The 30-day survival was equal (odds ratio, OR: 1.13, 95%-CI: 0.79-1.60). In 3,920 cases, a resuscitation duration > 45 min was documented (9.5% with device). When a device was used, 30-day survival was significantly increased (OR 2.33, 95%-CI: 1.30-4.15). Fibrinolytic agents were used in 2,106 patients (22.2% with device). Here, 30-day survival was significantly worse with a device (OR: 0.52, 95%-CI: 0.30-0.91). CONCLUSION: Mechanical devices are not associated with better survival when used during transport, but rescuer safety could still be an important argument for their use. Devices are associated with better survival in prolonged resuscitation, but worse survival when a fibrinolytic was used.

The impact of a qualified medical documentation assistant on trauma room management.

PURPOSE: To improve quality of trauma room management, intra- and inter-hospital benchmarking are important tools. However, primary data quality is crucial for benchmarking reliability. In this study, we analyzed the effect of a medical documentation assistant on documentation completeness in trauma room management in comparison to documentation by physicians involved in direct patient treatment. METHODS: We included all patients treated in the trauma room from 2016/01/01 to 2016/12/31 that were documented with the trauma module of the German Emergency Department Medical Record V2015.1. We divided the data into documentation by medical documentation assistant (DA, 07:00 to 17:00), physician in daytime (PD, 07:00 to 17:00), and physician at night (PN, 17:00 to 07:00). Data were analyzed for completeness (primary outcome parameter) as well as diagnostic intervals. RESULTS: There was a significant increase in complete recorded data for DA (74.5%; IQR 14.5%) compared to PD (26.9%; IQR 18.7%; p < 0.001) and PN (30.8%; IQR 18.9; p < 0.001). The time to whole-body computed tomography (WBCT) significantly decreased for DA (19 min; IQR 8.3) compared to PD (24 min; IQR 12.8; p = 0.007) or PN (24.5 min; IQR 10.0; p = 0.001). CONCLUSION: In presence of a qualified medical documentation assistant, data completeness and time to WBCT improved significantly. Therefore, utilizing a professional DA in the trauma room appears beneficial for data quality and time management.

Structural and Process Data on Radiological Imaging in the Treatment of Severely Injured Patients - Results of a Survey of Level I and II Trauma Centers in Germany. / Struktur- und Prozessdaten zur radiologischen Bildgebung bei Behandlung schwerstverletzter Patienten ­ Ergebnisse einer Befragung überregionaler und regionaler TraumaZentren in Deutschland.

PURPOSE: Systematic data collection regarding the integration of radiology as well as structural and process characteristics of radiological diagnostics of severely injured patients in Germany using a structured questionnaire. MATERIALS AND METHODS: Personal contact with all certified Level I and Level II Trauma Centers in Germany. Data on infrastructure, composition of the trauma room team, equipment, and data on the organization/performance of primary major trauma diagnostics were collected. RESULTS: With a participation rate of 46.9 % (n = 151) of all German trauma centers (N = 322), a solid database is available. There were highly significant differences in the structural characteristics incl. CT equipment between the level I and II centers: In 63.8 % of the level II centers, the CT unit was located more than 50 m away from the trauma room (34.2 % in the level I centers). A radiologist was part of the trauma room team in 59.5 % of level II centers (level I 88.1 %). Additionally, highly significant differences were found comparing 24-h provision of other radiologic examinations and interventions, such as MRI (level II 44.9 %, level I 92.8 %) and angiography (level II 69.2 %, level I 97.1 %). CONCLUSION: Heterogeneous structural and process characteristics of the diagnosis of severely injured patients in Germany were revealed, with highly significant differences between level I and level II centers. KEY POINTS: · This is the first study on the diagnostic reality of radiology in severely injured patients in Germany. Despite a high level of standardization, significant differences were observed.. CITATION FORMAT: · Ernstberger A, Reske SU, Brandl A et al. Structural and Process Data on Radiological Imaging in the Treatment of Severely Injured Patients - Results of a Survey of Level I and II Trauma Centers in Germany. Fortschr Röntgenstr 2022; 194: 505 - 514.

Prehospital evaluation and detection of induced coagulopathy in trauma: The PREDICT study.

BACKGROUND: Hemorrhage with trauma-induced coagulopathy (TIC) and hyperfibrinolysis (HF) increases the mortality risk after severe trauma. While TIC at hospital admission is well studied, little is known about coagulopathy at the incident site. The aim of the study was to investigate coagulation disorders already present on scene. METHODS: In a prospective single-center observational study, blood samples of trauma patients obtained before and at hospital admission were analyzed. Data on rotational thromboelastometry, blood gas analysis, prehospital treatment, injury severity, in-hospital blood transfusions, and mortality were investigated according to the presence of coagulation disorders at the incident site. The patients were divided into three groups according to the presence of coagulation disorders (no coagulopathy, TIC, TIC with HF). In a subgroup analysis, patients with a Trauma-Induced Coagulopathy Clinical Score (TICCS) of ≥10 were investigated. RESULTS: Between August 2015 and February 2018, 148 patients were enrolled in the study. The mean Injury Severity Score was 22.1, and overall mortality was 7.4%. Trauma-induced coagulopathy and HF were already detectable at the incident site in 18.2% and 6.1%, respectively. Patients with HF had significantly altered circulation parameters with significant changes in pH, hemoglobin, lactate, and base excess at the incident site. In patients with TICCS of ≥10 (14.2%), TIC was detected in 47.6% of the cases and HF in 28.6%. Furthermore, in these patients, blood gas parameters significantly changed and the need for blood transfusion and mortality. CONCLUSION: Trauma-induced coagulopathy and HF can be detected in severely injured patients even before medical treatment is started. Furthermore, in patients with HF and TICCS of ≥10, blood gas parameters were significantly changed at the incident site. LEVEL OF EVIDENCE: Prognostic study, level III.

Why do some trauma patients die while others survive? A matched-pair analysis based on data from Trauma Register DGU®.

PURPOSE: The mortality rate for severely injured patients with the injury severity score (ISS) ≥16 has decreased in Germany. There is robust evidence that mortality is influenced not only by the acute trauma itself but also by physical health, age and sex. The aim of this study was to identify other possible influences on the mortality of severely injured patients. METHODS: In a matched-pair analysis of data from Trauma Register DGU®, non-surviving patients from Germany between 2009 and 2014 with an ISS≥16 were compared with surviving matching partners. Matching was performed on the basis of age, sex, physical health, injury pattern, trauma mechanism, conscious state at the scene of the accident based on the Glasgow coma scale, and the presence of shock on arrival at the emergency room. RESULTS: We matched two homogeneous groups, each of which consisted of 657 patients (535 male, average age 37 years). There was no significant difference in the vital parameters at the scene of the accident, the length of the pre-hospital phase, the type of transport (ground or air), pre-hospital fluid management and amounts, ISS, initial care level, the length of the emergency room stay, the care received at night or from on-call personnel during the weekend, the use of abdominal sonographic imaging, the type of X-ray imaging used, and the percentage of patients who developed sepsis. We found a significant difference in the new injury severity score, the frequency of multi-organ failure, hemoglobine at admission, base excess and international normalized ratio in the emergency room, the type of accident (fall or road traffic accident), the pre-hospital intubation rate, reanimation, in-hospital fluid management, the frequency of transfusion, tomography (whole-body computed tomography), and the necessity of emergency intervention. CONCLUSION: Previously postulated factors such as the level of care and the length of the emergency room stay did not appear to have a significant influence in this study. Further studies should be conducted to analyse the identified factors with a view to optimising the treatment of severely injured patients. Our study shows that there are significant factors that can predict or influence the mortality of severely injured patients.

Correction to: Evaluation of new quality indicators for the TraumaRegister DGU® using the systematic QUALIFY methodology.

The original version of this article unfortunately contained some mistakes.

Evaluation of new quality indicators for the TraumaRegister DGU® using the systematic QUALIFY methodology.

BACKGROUND: The TraumaRegister DGU® (TR-DGU) of the German Trauma Society (Deutsche Gesellschaft für Unfallchirurgie, DGU) enables the participating hospitals to perform quality management. For that purpose, nine so-called audit filters have existed, since its foundation, which, inter alia, is listed in the Annual Report. The objective of this study effort is a revision of these quality indicators with the aim of developing pertinent new and reliable quality indicators for the management of severely injured patients. MATERIALS AND METHODS: Apart from indicators already used at national and international levels, a systematic review of the literature revealed further potential key figures for quality of the management of severely injured patients. The latter were evaluated by an interdisciplinary and interprofessional group of experts using a standardized QUALIFY process to assess their suitability as a quality indicator. RESULTS: By means of the review of the literature, 39 potential indicators could be identified. 9 and 14 indicators, respectively, were identified in existing trauma registries (TR-DGU and TARN), 17 in the ATLS® training concept, and 57 in the S3 guideline on the treatment of polytrauma/severe injuries. The exclusion of duplicates and the limitation to indicators that can be collected using the TR-DGU Version 2015 data set resulted in a total of 43 indicators to be reviewed. For each of the 43 indicators, 13 quality criteria were assessed. A consensus was achieved in 305 out of 559 individual assessments. With 13 quality criteria assessed and 43 indicators correspond this to a relative consensus value of 54.6%. None of the indicators achieved a consensus in all 13 quality criteria assessed. The following 13 indicators achieved a consensus in at least 9 quality criteria: time between hospital admission and WBCT, mortality, administration of tranexamic acid to bleeding patients, use of CCT with GCS <14, time until first emergency surgical intervention (7-item list in the TR-DGU), time until surgical intervention for penetrating trauma, application of pelvic sling belt (prehospital), capnometry (etCO2) in intubated patients, time until CCT with GCS < 15, time until surgery for hemorrhagic shock, time until craniotomy for severe TBI, prehospital airway management in unconscious patients (GCS < 9), and complete basic diagnostics available. Two indicators achieved a consensus in 11 criteria and thus represent the maximum consensus achieved within the group of experts. Four indicators only achieved a consensus in three quality criteria. 17 indicators had a mean value for the 3 relevance criteria of ≥ 3.5 and were, therefore, assessed by the group of experts as being highly relevant. CONCLUSION: Not all the key figures published for the management of severely injured patients are suitable for use as quality indicators. It remains to be seen whether the quality indicators identified by experts using the QUALIFY process will meet the requirements in practice. Prior to the implementation of the assessed quality indicators in standardized quality assurance programs, a scientific evaluation based on national data will be required.

Maxillofacial injuries in severely injured patients after road traffic accidents-a retrospective evaluation of the TraumaRegister DGU® 1993-2014.

OBJECTIVES: It was the aim of the study to analyse the prevalence of maxillofacial trauma (MFT) in severely injured patients after road traffic accidence (RTA) and to investigate associated factors. MATERIALS AND METHODS: In a retrospective study, data from patients after RTA by the TraumaRegister DGU® from 1993 to 2014 were evaluated for demographical and injury characteristics. The predictor variable was mechanism of injury and the outcome variables were type of injury, severity and hospital resources utilization. RESULTS: During the investigation period, n = 62,196 patients were enclosed with a prevalence of maxillofacial injuries of 20.3% (MFT positive). The injury severity score of MFT-positive patients was higher than in the MTF-negative subgroup (27 ± 12.8 vs. 23.0 ± 12.7). If MFT positive, 39.8% show minor, 37.1% moderate, 21.5% serious and 1.6% severe maxillofacial injuries. Injuries of the midface occurred in 60.3% of MTF-positive patients. A relevant blood loss (> 20% of total blood volume) occurred in 1.9%. MFT-positive patients had a higher coincidence with cervical spine fractures (11.3% vs. 7.8%) and traumatic brain injuries (62.6% vs. 34.8%) than MFT-negative patients. There was a noticeable decrease in the incidence of facial injuries in car/truck drivers during the study period. CONCLUSIONS: Every 5th patient after RTA shows a MFT and the whole trauma team must be aware that this indicates a high prevalence of traumatic brain and cervical spine injuries. CLINICAL RELEVANCE: Even if sole injuries of the face are seldom life threatening, maxillofacial expertise in interdisciplinary trauma centres is strongly recommended.

Oligoanalgesia in Patients With an Initial Glasgow Coma Scale Score ≥8 in a Physician-Staffed Helicopter Emergency Medical Service: A Multicentric Secondary Data Analysis of >100,000 Out-of-Hospital Emergency Missions.

BACKGROUND: Oligoanalgesia, as well as adverse events related to the initiated pain therapy, is prevalent in out-of-hospital emergency medicine, even when a physician is present. We sought to identify factors involved in insufficient pain therapy of patients presenting with an initial Glasgow Coma Scale (GCS) score of ≥8 in the out-of-hospital phase, when therapy is provided by a physician-staffed helicopter emergency medical service (p-HEMS). METHODS: This was a multicenter, secondary data analysis of conscious patients treated in primary p-HEMS missions between January 1, 2005, and December 31, 2017. Patients with a numeric rating scale (NRS) pain score ≥4, GCS score ≥8 on the scene, without cardiopulmonary resuscitation (CPR), and a National Advisory Committee for Aeronautics (NACA) score

The way from pen and paper to electronic documentation in a German emergency department.

BACKGROUND: Some of the advantages of implementing electronic emergency department information systems (EDIS) are improvements in data availability and simplification of statistical evaluations of emergency department (ED) treatments. However, for multi-center evaluations, standardized documentation is necessary. The AKTIN project ("National Emergency Department Register: Improvement of Health Services Research in Acute Medicine in Germany") has used the "German Emergency Department Medical Record" (GEDMR) published by the German Interdisciplinary Association of Intensive and Emergency Care as the documentation standard for its national data registry. METHODS: Until March 2016 the documentation standard in ED was the pen-and-paper version of the GEDMR. In April 2016 we implemented the GEDMR in a timeline-based EDIS. Related to this, we compared the availability of structured treatment information of traumatological patients between pen-and-paper-based and electronic documentation, with special focus on the treatment time. RESULTS: All 796 data fields of the 6 modules (basic data, severe trauma, patient surveillance, anesthesia, council, neurology) were adapted for use with the existing EDIS configuration by a physician working regularly in the ED. Electronic implementation increased availability of structured anamnesis and treatment information. However, treatment time was increased in electronic documentation both immediately (2:12 ± 0:04 h; n = 2907) and 6 months after implementation (2:18 ± 0:03 h; n = 4778) compared to the pen-and-paper group (1:43 ± 0:02 h; n = 2523; p < 0.001). CONCLUSIONS: We successfully implemented standardized documentation in an EDIS. The availability of structured treatment information was improved, but treatment time was also increased. Thus, further work is necessary to improve input time.

Analysis of Digital Documentation Speed and Sequence Using Digital Paper and Pen Technology During the Refugee Crisis in Europe: Content Analysis.

BACKGROUND: The Syria crisis has forced more than 4 million people to leave their homeland. As a result, in 2016, an overwhelming number of refugees reached Germany. In response to this, it was of utmost importance to set up refugee camps and to provide humanitarian aid, but a health surveillance system was also implemented in order to obtain rapid information about emerging diseases. OBJECTIVE: The present study describes the effects of using digital paper and pen (DPP) technology on the speed, sequence, and behavior of epidemiological documentation in a refugee camp. METHODS: DPP technology was used to examine documentation speed, sequence, and behavior. The data log of the digital pens used to fill in the documentation was analyzed, and each pen stroke in a field was recorded using a timestamp. Documentation time was the difference between first and last stroke on the paper, which includes clinical examination and translation. RESULTS: For three months, 495 data sets were recorded. After corrections had been made, 421 data sets were considered valid and subjected to further analysis. The median documentation time was 41:41 min (interquartile range 29:54 min; mean 45:02 min; SD 22:28 min). The documentation of vital signs ended up having the strongest effect on the overall time of documentation. Furthermore, filling in the free-text field clinical findings or therapy or measures required the most time (mean 16:49 min; SD 20:32 min). Analysis of the documentation sequence revealed that the final step of coding the diagnosis was a time-consuming step that took place once the form had been completed. CONCLUSIONS: We concluded that medical documentation using DPP technology leads to both an increase in documentation speed and data quality through the compliance of the data recorders who regard the tool to be convenient in everyday routine. Further analysis of more data sets will allow optimization of the documentation form used. Thus, DPP technology is an effective tool for the medical documentation process in refugee camps.

Necessity to depict difficult neck anatomy for training of cricothyroidotomy: A pilot study evaluating two surgical devices on a new hybrid training model.

BACKGROUND: Everyone dealing with airway emergencies must be able to accomplish cricothyroidotomy, which cannot be trained in real patients. Training models are necessary. OBJECTIVE: To evaluate the suitability of a hybrid training model combining synthetic and porcine parts to depict variable neck anatomy. DESIGN: Model-based comparative trial. SETTING: Armed Forces Hospital Ulm, Germany, August 2018. INTERVENTION: On four anatomical neck variations (long slim/long obese/short slim/short obese) we performed two surgical approaches to cricothyroidotomy (SurgiCric II vs. ControlCric). PARTICIPANTS: Forty-eight volunteers divided into two groups based on their personal skill level: beginners group and proficient performers group. MAIN OUTCOME MEASURES: Time to completion was recorded for each procedure. Once the operator had indicated completion, the correct anatomical tube placement was confirmed by dissection and structures were inspected for complications. Primary outcomes were successful tracheal placement of an airway tube and time needed to achieve a patent airway. Secondary outcome was assessment of complications. RESULTS: Overall, 384 procedures were performed. Median time to completion was 74 s. In total, 284 procedures (74%) resulted in successful ventilation. Time to completion was longer in short obese than in long slim and the risk of unsuccessful procedures was increased in short obese compared with long slim. Even if ControlCric resulted in faster completion of the procedure, its use was less successful and had an increased risk of complications compared with SurgiCric II. Proficient performers group performed faster but had an increased risk of injuring the tracheal wall compared with beginners group. CONCLUSION: Participants had difficulties in performing cricothyroidotomy in obese models, but various and difficult anatomical situations must be expected in airway management and therefore must be taught. A new hybrid model combining porcine and synthetic materials offers the necessary conditions for the next step in training of surgical airway procedures. TRIAL REGISTRATION: The study was performed without human tissue or living animals, and was therefore exempted from ethical review by the University of Ulm Ethical Committee, Germany (Chairperson Prof Dr C. Lenk) on 9 August 2018. Hence a protocol number was not attributed.

Resuscitative endovascular balloon occlusion of the aorta: an option for noncompressible torso hemorrhage?

PURPOSE OF REVIEW: Hemorrhage is the major cause of early death in severely injured patients. In civilian emergency medical services, the majority of life-threatening bleedings are found in noncompressible body regions (e.g. abdomen and pelvis). Resuscitative endovascular balloon occlusion of the aorta (REBOA) has therefore been discussed in recent years as a possible lifesaving procedure and numerous studies, meta-analyses and guidelines have been published. In this review, the data situation of REBOA in the management of bleeding trauma patients is discussed and practical implementation is depicted. RECENT FINDINGS: The typical indication for REBOA is a traumatic life-threatening hemorrhage below the diaphragm in patients unresponsive or only transiently responsive to the usual conservative therapeutic measures. REBOA appears to be a safe and effective procedure to reduce blood loss and stabilize the patient's hemodynamic status. However, surgical hemostasis has to be achieved within 30-60 min after occlusion of the aorta. Data on clear advantages of REBOA over resuscitative thoracostomy are inconclusive. SUMMARY: REBOA could play an important role in the management of the severely bleeding patient in the future. Together with transfusion and therapy of coagulation disorders, REBOA may be an additional tool in the anesthetist's hands for trauma management in interprofessional care concepts.

[Requirements for a sustainable standardization and digitalization in clinical emergency and acute medicine]. / Anforderungen an eine nachhaltige Standardisierung und Digitalisierung in der klinischen Notfall- und Akutmedizin.

Digitalization and standardization of documentation in medicine are increasingly progressing. In the decision of the Federal Joint Committee (G-BA) for a staged system of emergency structures in hospitals and in the report of the expert committee for development in the healthcare system on needs-oriented guidance of healthcare, the actuality of the topic is underlined with concrete naming of future tasks. The section on emergency admission protocols of the German Interdisciplinary Association of Intensive and Emergency Care Medicine (DIVI) has been working for years on this topic and has repeatedly reported on the progress of the topic in clinical emergency care. Standardization and digitalization represent the foundation for health services research spread across locations as well as the possibility for benchmarking. Digitalization makes the secondary use of primary clinical routine data possible. Digitalization decreases redundancies of data transmission by avoiding manual data input in, for example registers.

Lessons learned in applying the International Society for Pharmacoeconomics and Outcomes Research methodology to translating Canadian Emergency Department Information System Presenting Complaints List into German.

OBJECTIVES: The patient's presenting complaint guides diagnosis and treatment in the emergency department, but there is no classification system available in German. The Canadian Emergency Department Information System (CEDIS) Presenting Complaint List (PCL) is available only in English and French. As translation risks the altering of meaning, the International Society for Pharmacoeconomics and Outcomes Research (ISPOR) has set guidelines to ensure translational accuracy. The aim of this paper is to describe our experiences of using the ISPOR guidelines to translate the CEDIS PCL into German. MATERIALS AND METHODS: The CEDIS PCL (version 3.0) was forward-translated and back-translated in accordance with the ISPOR guidelines using bilingual clinicians/translators and an occupationally mixed evaluation group that completed a self-developed questionnaire. RESULTS: The CEDIS PCL was forward-translated (four emergency physicians) and back-translated (three mixed translators). Back-translation uncovered eight PCL items requiring amendment. In total, 156 comments were received from 32 evaluators, six of which resulted in amendments. CONCLUSION: The ISPOR guidelines facilitated adaptation of a PCL into German, but the process required time, language skills and clinical knowledge. The current methodology may be applicable to translating the CEDIS PCL into other languages, with the aim of developing a harmonized, multilingual PCL.