Israel Defense Forces Medical Corps Research Articles

Deploying whole blood to the battlefield-The Israel Defense Forces Medical Corps initial experience during the 2023 war.

Military and prehospital medical organizations invest significant resources to advance the treatment of trauma patients aiming to reduce preventable deaths. Focus is on hemorrhage control and volume resuscitation with blood products, with adoption of Remote Damage Control Resuscitation (RDCR) guidelines. The Israel Defense Forces Medical Corps (IDF-MC) has been using tranexamic acid and freeze-dried plasma (FDP) as part of its RDCR protocol for more than a decade. In recent years, low-titer group O whole blood (LTOWB) has been integrated, on IDF evacuation helicopters and expanded to mobile ambulances, complementing FDP use in treating trauma patients in state of profound shock. During the war that erupted in October 2023, the IDF-MC made a decision to bring LTOWB forward, and to equip every combat brigade level mobile intensive care units with LTOWB, onboard armored vehicles. The goal was to make whole blood available as close as possible to the point of injury and within minutes from time of injury. We describe the IDF-MCs' efforts to bring LTOWB to the front lines and present four cases in which LTOWB was administered. All patients were young male, with significant blood loss following penetrating injuries. One patient died in the operating room, following hospital arrival and emergency thoracotomy. The others survived. Our initial experience with bringing LTOWB as close as possible to the point of injury during high intensity fighting is encouraging, showing patient benefit along with logistic feasibility. After action reports and data collection will continue.

Survival following Prehospital Traumatic Cardiac Arrest Resuscitation in the Israel Defense Forces: A Retrospective Study

Background Prehospital traumatic cardiac arrest (TCA) is associated with a poor prognosis and requires urgent interventions to address its potentially reversible causes. Resuscitative efforts of TCA in the prehospital setting may entail significant resource allocation and impose added tolls on caregivers. The Israel Defense Forces Medical Corps (IDF-MC) instructs clinicians to perform a set protocol in the case of TCA, providing prompt oxygenation, chest decompression and volume resuscitation. This study investigates the settings, interventions, and outcomes of TCA resuscitation by IDF-MC teams over 25 years in both combat and civilian settings. Methods Retrospective study of the IDF-MC Trauma Registry between 1997–2022. Search criteria were applied to identify cases where the TCA protocol was initiated. A manual review of cases matching the search criteria was performed by two curators to determine the indications, interventions, and outcomes of casualties with prehospital TCA. Patients for whom interventions were performed outside of the TCA protocol, such as with measurable vital signs, were excluded. The primary outcome was survival to hospital admission, with the secondary outcome being return of vital signs in the prehospital setting. Results Following case review, 149 patients with prehospital TCA were included, with a median age of 21 (interquartile range 19–27). Eighty-four (56.4%) presented with TCA in military or combat settings, with gunshot wounds and blast injuries being the most common mechanisms in this group. For 56 casualties (37.8%), all components of the protocol were performed (oxygenation, chest decompression, and volume resuscitation). Five (3.4%) casualties had return of vital signs in the prehospital setting, but none survived to hospital admission. Conclusion The prognosis of prehospital TCA is poor, and efforts to address its potentially reversible causes may often be futile. These notions may be further emphasized in military settings, where resources are limited, and extensive penetrating injuries are more common.

Implications for future humanitarian aid missions: Lessons from point-of injury and hospital care for Syrian refugees

BackgroundWarzone humanitarian medical aid missions are infrequent and applying lessons from these missions is vital to ensuring preparedness for future crises. Between 2013–2018, the Israel Defense Forces Medical Corps (IDF-MC) provided humanitarian medical aid to individuals injured in the Syrian Civil War who chose to seek medical assistance at the Israeli-Syrian border. Patients requiring care surgical or advanced care were transferred to civilian medical centers within Israel. This study aims to describe the injury characteristics and management of hospitalized Syrian Civil War trauma patients over a five-year period. MethodsRetrospective cohort analysis cross-referencing data from the IDF trauma registry, documenting prehospital care, and the Israel National Trauma Registry, documenting in-hospital care, between 2013 and 2018. Syrian trauma patients hospitalized in Israeli hospitals were cross-referenced between the two registries. Multivariable logistic regression was applied to identify independent factors associated with in-hospital mortality. ResultsOverall, 856 hospitalized trauma patients were included following definitive cross-matching. The median age was 23 years, and 93.3% were males. Blast (n = 532; 62.1%) and gunshot (n = 241; 28.2%) were the most common injury mechanisms. Injury Severity Score was ≥25 for 28.8% of patients and most common body regions with severe injury (Abbreviated Injury Scale≥3) were the head (30.7%) and thorax (25.0%). Intensive care unit admission was required for 40.1% of patients, and the median hospital stay was 13 days. In-hospital mortality was recorded for 73 (8.5%). Signs of shock upon emergency department admission and severe head injury were significantly associated with mortality in the adjusted model whereas age of <18 years was associated with decreased odds for in-hospital mortality. ConclusionsTrauma patients hospitalized in Israel following injuries sustained in the Syrian Civil War were characterized by a high prevalence of blast injuries with concomitant involvement of several body regions. Future missions should ensure preparedness for complex multi-trauma, often involving the head, and ensure high intensive care and surgical capacities.

Adopting a culture of remote damage control resuscitation in the military: Insights from the Israel defense forces decade of experience.

Remote damage control resuscitation (RDCR) aims to apply the principles of damage control resuscitation to prehospital and austere care, emphasizing early control of compressible hemorrhage, balanced volume resuscitation, and the prevention or correction of coagulopathy, acidosis, hypothermia, and hypocalcemia. Over the past decades, the Israel Defense Forces Medical Corps (IDF-MC) has made significant efforts to integrate the principles of RDCR into prehospital trauma care in the military. In this article, we reflect on the implementation of RDCR in the prehospital setting by the IDF-MC, sharing successes, challenges, considerations on guideline changes, and their assessment over time. The implementation of RDCR has resulted in changes in clinical practice guidelines and training programs, with increased awareness and adoption of RDCR principles among both medical and non-medical military personnel. The implementation of these principles and adherence to guideline changes have been analyzed using the Israel Defense Forces Trauma Registry. By sharing our experiences, we hope to provide valuable insights for other military and civilian organizations seeking to adopt similar protocols for prehospital care. Continuous evaluation and refinement of guidelines and training programs will be essential for ongoing implementation and advancement of RDCR in the prehospital setting.

Prehospital Tranexamic Acid Administration in Pediatric Trauma Patients: A Propensity-Matched Analysis of the Israeli Defense Forces Registry.

Tranexamic acid (TXA) administration confers a survival benefit in bleeding trauma patients; however, data regarding its use in pediatric patients are limited. This study evaluates the prehospital treatment with TXA in pediatric trauma patients treated by the Israel Defense Forces Medical Corps (IDF-MC). Retrospective, cohort study using the Israel Defense Forces registry, 2011-2021. Pediatric trauma patients less than 18 years old. We excluded patients pronounced dead at the scene. None. All cases of pediatric trauma in the registry were assessed for treatment with TXA. Propensity score matching was used to assess the association between prehospital TXA administration and mortality. Overall, 911 pediatric trauma patients were treated with TXA by the IDF-MC teams; the median (interquartile) age was 10 years (5-15 yr), and 72.8% were male. Seventy patients (7.6%) received TXA, with 52 of 70 (74%) receiving a 1,000 mg dose (range 200-1,000 mg). There were no prehospital adverse events associated with the use of TXA (upper limit of 95% CI for 0/70 is 4.3%). Compared with pediatric patients who did not receive TXA, patients receiving TXA were more likely to suffer from shock (40% vs 10.7%; p < 0.001), sustain more penetrating injuries (72.9% vs 31.7%; p < 0.001), be treated with plasma or crystalloids (62.9% vs 11.4%; p < 0.001), and undergo more lifesaving interventions (24.3% vs 6.2%; p < 0.001). The propensity score matching failed to identify an association between TXA and lesser odds of mortality, although a lack of effect (or even adverse effect) could not be excluded (non-TXA: 7.1% vs TXA: 4.3%, odds ratio = 0.584; 95% CI 0.084-3.143; p = 0.718). Although prehospital TXA administration in the pediatric population is feasible with adverse event rate under 5%, more research is needed to determine the appropriate approach to pediatric hemostatic resuscitation and the role of TXA in this population.

The Influence of Gender Bias: Is Pain Management in the Field Affected by Health Care Provider's Gender?

Appropriate pain management indicates the quality of casualty care in trauma. Gender bias in pain management focused so far on the patient. Studies regarding provider gender are scarce and have conflicting results, especially in the military and prehospital settings. The purpose of this study is to investigate the effect of health care providers' gender on pain management approaches among prehospital trauma casualties treated by the Israel Defense Forces (IDF) medical teams. This retrospective cohort study included all trauma casualties treated by IDF senior providers from 2015-2020. Casualties with a pain score of zero, age under 18 years, or treated with endotracheal intubation were excluded. Groups were divided according to the senior provider's gender: only females, males, or both female and male. A multivariate analysis was performed to assess the odds ratio of receiving an analgesic, depending on the presence of a female senior provider, adjusting for potential confounders. A subgroup analysis was performed for "delta-pain," defined as the difference in pain score during treatment. A total of 976 casualties were included, of whom 835 (85.6%) were male. Mean pain scores (SD) for the female only, male only, and both genders providers were 6.4 (SD = 2.9), 6.4 (SD = 3.0), and 6.9 (SD = 2.8), respectively (P = .257). There was no significant difference between females, males, or both female and male groups in analgesic treatment, overall and per specific agent. This remained true also in the multivariate model. Delta-pain difference between groups was also not significant. Less than two-thirds of casualties in this study were treated for pain among all study groups. This study found no association between IDF Medical Corps providers' gender and pain management in prehospital trauma patients. Further studies regarding disparities in acute pain treatment are advised.

1263-P: Adolescent Obesity and Incident Type 1 Diabetes in Young Adulthood

Background: Studies in children reported an association between increased body mass index (BMI) and risk for developing type 1 diabetes (T1D) . We studied the association between adolescent BMI and incident T1D in young adulthood in a nationwide cohort of 1,462,362 adolescents which was recently used to assess the association between adolescent BMI and early-onset type 2 diabetes (Diabetes Care 2020 Jul;43 (7) :1487-1495) . Methods: All Israeli adolescents, ages 16-19, undergoing medical evaluation in preparation for mandatory military conscription between January 1996 and December 2016 were included for analysis unless they had a history of dysglycemia. Data were linked to information about adult onset of T1D in the Israeli National Diabetes Registry. Weight and height were measured at the study entry. Cox proportional models were applied, with BMI analyzed both as a categorical and as a continuous variable. Islet autoantibody data were available for a subpopulation of the cohort. Results: There were 777 incident cases of T1D during 15,810,751 person-years (mean age at diagnosis 25.2±3.9 years) . BMI was associated with incident T1D. In a multivariable model adjusted for age, sex and socio-demographic variables, the hazard ratios (HRs) for T1D were 1. (95% CI 0.87-1.27) for the 50th-74th BMI percentiles, 1.41 (1.11-1.78) for the 75th-84th BMI percentiles, 1.54 (1.23-1.94) for adolescents with overweight (85th-94th percentiles) , and 2. (1.58-2.66) for adolescents with obesity (BMI≥95th percentile) . One increment in BMI standard deviation was associated with 25% greater risk for incidence of T1D (HR=1.25, 95%CI 1.17-1.32) . Association persisted when the definition of T1D included the presence of islet autoantibodies; when the study population was restricted to those with unimpaired health. Conclusions: Excessively high BMI in apparently healthy adolescents is associated with increased risk for incident T1D in early adulthood. Disclosure I.Zucker: None. D.Tzur: None. C.Melzer cohen: None. O.Pinhas-hamiel: Advisory Panel; Novo Nordisk, Speaker's Bureau; Pfizer Inc. G.Chodick: None. I.Raz: None. A.Afek: None. H.C.Gerstein: Advisory Panel; Abbott, Eli Lilly and Company, Hanmi Pharm. Co., Ltd., Novo Nordisk, Pfizer Inc., Sanofi, Viatris Inc., Consultant; Kowa Company, Ltd., Other Relationship; DKSH, Eli Lilly and Company, Sanofi, Zuellig Pharma Holdings Pte. Ltd., Research Support; AstraZeneca, Eli Lilly and Company, Merck &amp; Co., Inc., Novo Nordisk, Sanofi. A.Tirosh: Advisory Panel; Abbott Diagnostics, AstraZeneca, Boehringer Ingelheim International GmbH, Merck &amp; Co., Inc., Novo Nordisk, Sanofi, Consultant; Bayer AG, DreaMed Diabetes, Ltd., Research Support; Medtronic, Speaker's Bureau; Eli Lilly and Company. G.Twig: None. Y.Zloof: None. A.Bardugo: None. A.M.Tsur: None. M.Lutski: None. Y.Cohen: None. T.Cukierman-yaffe: Research Support; European Association for the Study of Diabetes, Medtronic, Merck Sharp &amp; Dohme Corp., Novo Nordisk, Speaker's Bureau; AstraZeneca, Eli Lilly and Company, Medtronic, Merck Sharp &amp; Dohme Corp., Novo Nordisk, Sanofi. N.Minsky: None. E.Derazne: None. Funding This work was partially supported by an internal grant from the Israel Defense Forces Medical Corps.

Humanitarian Medical Aid Mission in the Middle of a Pandemic – Israeli Experience in Equatorial Guinea

In March 2021, a series of explosions shook a military base in Bata, Equatorial Guinea. As a response to government officials' request, the Israel Defense Forces Medical Corps (IDF-MC) deployed an emergency aid team that faced two major challenges: (1) understanding the scenario, the injury patterns, and the needs of the local medical system; and (2) minimizing the coronavirus disease 2019 (COVID-19) outbreak threats. This report describes the team design, the activities performed before and during the deployment, analyzes the pathology encountered, and shares lessons learned from the mission. Data were collected from the delegation protocols and IDF medical records. All activities of the Israeli delegation were coordinated with the local government. The local authorities reported that a total of 107 people were killed and more than 700 people were wounded. The team was the first international team to arrive at the scene and assisted the local medical teams to treat 231 patients in the three local hospitals and 213 patients in field clinics in the villages surrounding Bata. The COVID-19 pandemic influenced the operation of this mission, and caution measures were activated. Unplanned explosions at munitions sites (UEMS) are a growing problem causing the medical teams to face unique challenges. By understanding the expected challenges, the team was reinforced with a plastic surgeon, portable ultrasound devices, a large amount and a variety of antibiotics, whole blood units, and freeze-dried plasma. Rehabilitation experts were needed in some cases in the week following the injury. An important key for the success of this kind of medical aid delegation is the collaboration with the local medical teams, which enhances patient care.

Efficacy of Oral Steroids for Acute Acoustic Trauma

Objective: This study aimed to study the effect of steroid treatment on new-onset sensorineural hearing loss (SNHL) in subjects presenting shortly after an audiometry-confirmed acute acoustic trauma (AAT) injury. Study Design: This is a case-control study. Methods: We identified healthy military personnel who presented with AAT injury to the Israeli Defense Forces Medical Corps Otolaryngology/Audiology Services during 2016–2020. Patients were nonrandomly allocated to a treatment arm, where they received steroids (prednisone, 1 mg/kg, 60 mg maximal daily dose), administered for either ≥7 days or <7 days, or to a control arm, in which no treatment was offered besides loud noise avoidance. Audiometries were conducted within 7 days following the AAT and within 1 month later. We compared changes in bone conduction (BC) and air conduction (AC) thresholds at 2–8 kHz. Results: Of the 263 enrolled subjects, 137 (52%) received steroids and 126 (48%) received no treatment. Subjects who were treated early (<24 h) with high-dose steroids and for ≥7 days demonstrated significantly better hearing outcomes, compared with the nontreatment group. Subjects in the steroids group demonstrated 13–14 dB average improvement in BC thresholds at 3 and 4 kHz (p = 0.001) and additional 7–8 dB average improvement in AC thresholds at 6 and 8 kHz, compared with the nontreatment group (p < 0.0001). These observations were more compelling in patients who initially presented with worse hearing losses (>35 dB). No statistically significant differences were observed in AC/BC pure tone average between the two groups. Conclusions: Early oral steroids are recommended in AAT injuries and were shown to improve hearing outcomes within 1 month.

WhatsApp Tele-Medicine \u2013 usage patterns and physicians views on the platform

Background Telemedicine has become an integral part of health care delivery in recent years. One of the leading applications for this use is WhatsApp — a free smartphone application that allows instant messaging with pictures and videos. This study analyzed the emerging role of WhatsApp on reducing the need for referrals to medical specialists and to compare the views of physicians regarding WhatsApp consultations.MethodsA cross-sectional study based on an anonymous web-survey was conducted among PCPs and medical specialists working in the Israel Defense Forces Medical-Corps during September and October, 2019.ResultsOf 201 participants, 153 were PCPs and 48 were medical specialists. 86.9 % of PCPs and 86.5 % of specialists used WhatsApp every day in professional settings. Added workload, potential breaching of patient confidentiality and lack of full documentation of consultations were the main concerns among physicians using the application. 60.7 % of PCPs and 95.7 % of specialists stated that these consultations have reduced the need for in-person appointments at least once a week.ConclusionsIn times of COVID-19 that require social distancing, WhatsApp provides a simple, readily available platform for consultations between healthcare providers, even to the extent of rendering some in-person appointments unnecessary. Healthcare organizations should address the matters troubling healthcare providers, mainly patient confidentiality and lack of documentation in patients’ medical records, while providing adequate compensation for those providing the service during and after work hours.

Trends in prehospital pain management following the introduction of new clinical practice guidelines.

Early pain treatment following injury has been shown to improve long-term outcomes, while untreated pain can facilitate higher posttraumatic stress disorder rates and worsen outcomes. Nonetheless, trauma casualties frequently receive inadequate analgesia. In June 2013, a new clinical practice guideline (CPG) regarding pain management was introduced in the Israel Defense Forces (IDF) Medical Corps, recommending oral transmucosal fentanyl citrate (OTFC) and low-dose intravenous (IV)/intramuscular ketamine. The purpose of this study was to examine trends in prehospital pain management in the IDF. All cases documented in the IDF trauma registry between 2008 and 2020 were examined. This study compared casualty parameters before and after the introduction of analgesia CPG in 2013. Parameters compared included demographics, injury parameters, treatment modalities, and types of analgesia provided. Overall, 5,653 casualties were included in our study. During the 6 years before the introduction of the CPG, 289 (26.7%) of 1,084 casualties received an analgesic treatment, compared with 1,578 (34.5%) of 4,569 casualties during the 7 years following (p < 0.001). Since its introduction, OTFC was administered to 41.8% of all casualties who received analgesia and became the most used analgesic drug in 2020 (61.1% of casualties receiving analgesia). The rate of IV morphine significantly decreased after 2013 (22.6-16%, p < 0.001). Pain management has become more common in trauma patients' prehospital care in the IDF in recent years. There has been a significant increase in analgesia administration, with the increased use of OTFC, along with a significant reduction in the use of IV morphine. These results may be attributed to introducing a pain management CPG and implementing OTFC among medical teams. The perception of OTFC as a safe user-friendly analgesic may have contributed to its use by medical providers, increasing analgesia rates overall. Therapeutic/care management, level III.

Short Communication: Combining Ethics With Efficiency-Israel Defense Forces' Experience in Clinical Trials During the Coronavirus Disease 2019 Pandemic.

The coronavirus disease 2019 (COVID-19) pandemic, first reported in China, soon spread worldwide, has evolved into one of the most complex global public health crises the world has encountered in the last several decades. Conducting military medical research is vital to study the unique influences of military service conditions on soldiers' health and to improve the medical response in various emergency periods. The Israel Defense Forces (IDF) Medical Corps maintains an Institutional Review Board (IRB) which reviews clinical studies conducted within the IDF. During the COVID-19 pandemic, the IRB of the IDF had to rapidly implement procedural modifications in order to comply with expanding urgent demands for research without compromising ethical standards. The ethical dilemmas and the IDF policy and perspective are outlined in this article.

Characteristics and associated morbidities of young adults with misconceived food allergy: A cross-sectional study.

BackgroundMany patients with self-reported food allergy are not allergic but suffer from similar burdens. We aimed to characterize young adults with misconceived food allergy.MethodsA cross-sectional study of individuals (n = 12,592) aged 17–18 years, recruited to the Israel Defense Forces (IDF) at a single urban-area recruitment center over a six month-period. All participants underwent a comprehensive medical and psychological evaluation. Cognitive tests were performed and a Combined Intellectual-Education score assigned. Participants who reported food elimination due to allergy were skin-tested and underwent oral food challenges, when indicated. The characteristics, psychological evaluation and cognitive tests of individuals with no reported food allergy (n = 12,444), misconceived food allergy (n = 64) and true food allergy (n = 84) were compared.FindingsThe prevalence of atopic co-morbidities was higher in recruits reporting compared to those not reporting food allergy while the rate of other co-morbidities was comparable. Anxiety disorder was diagnosed significantly more in individuals who reported food allergy (4·1%) compared to those who did not (1·7%) (p = 0·04). Further analysis revealed that this diagnosis was concentrated in individuals with misconceived (8/64, 12·5%) compared to true food allergy (2/84, 2·4%), (p = 0·02). Patients with misconceived food allergy were mostly of female sex, had lower Combined Intellectual-Education scores compared to patients with true (p = 0·001) and no reported food allergy (p = 0·01), and required the longest mean evaluation time (147·6 ± 109·4 days).InterpretationPatients with misconceived food allergy have higher rates of anxiety disorder and are often from a lower educational level and of female sex. Medical and educational attention is required to improve care of this specific population.FundingThe research reported in this publication was supported by the Israel Defense Forces (IDF) Medical Corps and Directorate of Defense Research & Development, Israeli Ministry of Defense (IMOD DDR&D).

Rapid Sequence Adaptation: Establishing the First Military COVID-19 Ward in a Large Civilian Medical Center

Background: Coronavirus disease (COVID-19) challenged health systems worldwide. Even though an early aggressive containment strategy successfully delayed the initial outbreak in Israel, eventually COVID-19 care came at the expense of other patients. To increase the national surge capacity, a COVID-19 facility was established in an underground emergency hospital. Operation of Military COVID-19 Wards (MCWs) in the facility was assigned to the Israeli Defense Force Medical Corps, which does not operate hospitalization facilities regularly. We hypothesized that military health care providers could be quickly mobilized, trained, and deployed to a civilian facility to operate a MCW. Methods and findings: To test this hypothesis, we examined the timeline of MCW deployments and conducted a retrospective cohort study comparing patients admitted to the MCW during the first and second deployments. The cohorts were compared in terms of patient characteristics at presentation, in-hospital COVID-19 care and quality of care measures. The MCW admitted its first patient 10 days after the operation was announced and 5 days after it was reopened. 52 and 182 patients were treated during the first and second deployments, respectively. No significant differences in age, sex, time after symptom onset or diagnosis, and COVID-19 severity at presentation were found between deployments. A significantly higher proportion of patients treated during the second deployment were vaccinated (p=0.03). No significant differences were found in maximal respiratory support, the use of Dexamethasone or anticoagulation. The use of remdesivir on the other hand, was significantly less prevalent in the second deployment (p<0.0001). No significant differences in length of stay, discharge destination or mortality were found between deployments. Conclusion: Opening the MCW increased the national surge capacity within days, thereby relieving the overextended national healthcare system. The only differences found between deployments reflected external changes in vaccine availability and standard of care. The MCW proved to be an agile strategy in mitigating unpredictable surges in health care demand.

Agreement Between Ti-RADS Classification and Bethesda Cytopathological Findings from Thyroid Nodules in Young Adults.

Thyroid nodules are common in young adults. We sought to compare the sonographic characteristics (thyroid imaging reporting and data system [Ti-RADS] classification) with the reported cytological results (Bethesda categories) from thyroid nodules in young recruits and examine the efficiency of our unique multidisciplinary clinic. In this retrospective cohort, we identified young recruits (18-25years) who underwent needle biopsies for asymptomatic thyroid nodule(s), with cytology reports of Bethesda categories II-V, performed in our "Rapid Diagnostic Service" at a large Israeli Defense Forces Medical Corps healthcare facility, between 2013 and 2018. We studied the concordance rates between their Ti-RADS and Bethesda grades, and the preoperative Bethesda grades accuracy versus final pathology results, and the time period needed for their thyroid nodules workup. A total of 81 patients were included who contributed 91 nodules. A fair agreement was found between the Ti-RADS classifications and the Bethesda grades (Cohen's κ=0.238) that was more noticeable in males than in females. The agreement rate was 87.5% in males (21 of 24), but only 77.6% in females (59 of 67) [P=.029]. Of the 5 operated benign cases, all had low Ti-RADS, and 2 had low Bethesda. Of the 8 operated malignant cases, 6 had high Ti-RADS, and 5 had high Bethesda. On average, 37.64days elapsed between the first visit to the ultrasound study, and 24.2days elapsed until biopsy was performed. Despite an overall fair agreement between the sonographic features and cytological findings in young adults, we recommend a more aggressive approach and repeated biopsies despite reported benign pathology, because of a high false-negative rate.

Early experience with transfusing low titer group O whole blood in the pre-hospital setting in Israel.

The Israeli Defense Force Medical Corps (IDF-MC) recently implemented the use of low titer group O whole blood (LTOWB) in the airborne combat search and rescue unit (CSAR) for both military and civilian patients during transport to definitive care. LTOWB is preferentially used by the CSAR instead of red blood cell units and freeze-dried plasma (FDP) for patients with signs of hemorrhagic shock. Ten percent of group O donors were eligible to donate LTOWB as they had anti-A and -B IgM titers of <50. All patients treated by CSAR providers with LTOWB between July 2018 and June 2019 were included. Between July 2018 and June 2019, eight patients have received 10 units of LTOWB. All patients suffered blunt injuries, 6 out of 8 (75%) of whom were due to motor vehicle accidents. Four patients (4 out of 8, 50%) received a single LTOWB unit, two patients (2 out of 8, 25%) received two units. Two pediatric patients received fewer than one unit of LTOWB. Median (range) heart rate was 130 (30-150) bpm, median systolic blood pressure was 107 (80-124) mmHg, and median Glasgow coma scale was 8 (on a scale of 3-15). For four (4 out of 8, 50%) patients, LTOWB was the only blood product used for volume resuscitation. All six adult patients were treated with 1 g of tranexamic acid at the point of injury. The CSAR has successfully implemented a LTOWB program for the pre-hospital treatment of bleeding patients, and as its experience grows this product will be made available to other units and in civilian hospitals.

Intubation using the gum-elastic bougie while wearing personal protective equipment.

To determine whether application of a gum-elastic bougie (GEB), a visual stylet used to improve success rates of difficult intubations, reduces the time, and number of attempts to achieve successful intubation while wearing personal protective equipment (PPE). A randomized cross-over study comparing orotracheal intubations performed on an AirMan® Mannequin, using either a semirigid stylet or a GEB, while wearing an active hood with a charcoal impregnated suit and butyl rubber gloves. Simulation training field of the Israel Defense Force Medical Corps. 27 military physicians and 23 paramedics (PMs). Comparing intubation with and without using the GEB while wearing PPE. Airway (AW) control was considered successful if the "lungs" of the mannequin ex-panded during bag ventilation. Three unsuccessful attempts or a procedure exceeding 60 seconds were regarded as a failure. Correlations between parameters of self-assessment of skills and successful intubation were also determined. With the GEB, success rate was lower (82 percent versus 100 percent, p = 0.002), more attempts were needed (1.4 ± 0.7 versus 1.0 ± 0.2, p = 0.005) and time-to-achieve AW control was longer (43.6 ± 14.6 sec-onds versus 23.1 ± 10.5 seconds, P < 0.001) than without it. Participants with high self-assessment of GEB-assisted AW management skills needed less attempts to perform successful intubation with GEB than participants with low self-assessment (1.0 ± 0.0 versus 1.4 ± 0.8, p = 0.001), but not less time to achieve it. While donning PPE, the use of GEB (versus semirigid stylets) did not reduce the time or the number of attempts necessary to achieve successful intubation.

The effects of military-wide introduction of advanced tourniquets in the Israel Defense Forces

BackgroundEarly application of tourniquets has reduced injury death rates. At the end of 2013, the Israel Defense Forces Medical Corps completed a military-wide introduction of the Combat Application Tourniquet as the standard-issued tourniquet. The accompanying clinical practice guideline encouraged combat soldiers and medical teams towards a liberal use of tourniquets for extremity injuries, even when in doubt. ObjectivesThis study aimed to assess the effects of the wide introduction of advanced tourniquets on the rate of tourniquet applications, the type of tourniquet applied, and the differences in hospitalisation outcomes following the introduction. MethodsThe study population was composed of hospitalised military casualties with an extremity injury treated by military medical teams between 2006 and 2015. Prehospital data were extracted from the Israel Defense Forces Trauma Registry and matched to corresponding hospital data from the Israeli National Trauma Registry. Two periods were compared: 2006–2013 "pre-intervention period" and 2014–2015 "post-intervention period". ResultsA total of 1,578 casualties were recorded during the study period. Of these, 320 (20.3%) occurred between 2014–2015. Characteristics of casualties in the post-intervention period were similar to those in the pre-intervention period including the rate of traumatic amputations (2.5% vs 2.2%, p = 0.93) and Injury Severity Score of 16 or above (12.8% vs 14.9%, p = 0.40). The rate of tourniquet application was more than four-fold in the post-intervention period compared to the pre-intervention period (22.8% vs 5.5%, p < 0.001). Nevertheless, rates of in-hospital amputations (1.6% vs 1.6%, p = 1.00) and death (0.9% vs 1.3%, p = 0.53) were similar in the two periods. ConclusionFollowing the IDF military-wide introduction of advanced tourniquets, the tourniquet application rate rose sharply, the use of old tourniquets ceased over time, and in-hospital amputation rate did not increase. These findings suggest that the awareness for haemorrhage control using advanced tourniquets rose.

The Israel Defense Forces experience with freeze-dried plasma for the resuscitation of traumatized pediatric patients.

With the growing recognition of the disadvantages of crystalloid- and colloid-based resuscitation and the advantages of using blood products as the preferred resuscitation fluid, the Israel Defense Forces Medical Corps (IDF-MC) adopted plasma as the primary volume resuscitation regimen in 2013. While data are accumulating for prehospital plasma transfusion, little to no data exist regarding using plasma as a prehospital resuscitation fluid for traumatized pediatric patients. All patients treated by the IDF-MC personnel are recorded in the IDF Trauma Registry, a unique prehospital trauma registry. All patients treated by the IDF advanced life support providers with FDP at the point of injury between April 2013 and June 2018 who were younger than 18 years at the time of injury were included. Six hundred seventy-nine children were treated by IDF medical providers, of whom 33 (5%) were identified in the IDF Trauma Registry as having received FDP at the point of injury. Most patients (80%) were treated for penetrating injuries. Most patients received one plasma unit. Fifty-four percent of the patients were also treated by Tranexamic Acid (TXA) and 48% were transfused with crystalloids. In 33% of patients, additional life-saving interventions were performed. While the ideal resuscitation fluid for the pediatric population remains to be determined, it seems reasonable to pursue a similar approach to that of applied that for adults. In the IDF-MC, the resuscitation fluid of choice for trauma patients in hemorrhagic shock is freeze-dried plasma transfused at the point of injury. The current study demonstrates the feasibility of FDP administration in the prehospital scenario for injured children and further supports the growing confidence in the use of FDP for the treatment of pediatric trauma patients. Retrospective descriptive study, level IV.

Prehospital trauma experience of the Israel defense forces on the Syrian border 2013-2017.

The Israeli Defense Force Medical Corps (IDF-MC) is routinely collecting prehospital data to establish a prehospital registry. Since February 2013, Israel has been providing medical care to Syrian refugees. This unique humanitarian aid begins in prehospital settings and typically culminates in Israeli civilian hospitals. This report describes the accumulated experience of the IDF-MC to provide Syrian refugees with prehospital treatment. Care provided by IDF-MC medical teams, including prehospital casualty care, is regularly documented and after-action reports are conducted. Records of casualties arriving at the Israeli-Syrian border from February 16, 2013, to December 31, 2017, were prospectively extracted from the IDF Trauma Registry. Patients who did not have a casualty card were excluded. The database included demographic information, injury signature and treatment given. During the study period, 2,785 Syrian casualties were treated, of whom 2,339 were trauma victims. The most common mechanism of injury was penetrating (60.4%). Prehospital lifesaving interventions included 127 endotracheal intubations, 30 cricothyroidotomies, 55 chest decompressions, and 58 tourniquets for extremity hemorrhage control. Remote Damage Control Resuscitation included reconstituted freeze-dried plasma (n = 75) and tranexamic acid (n = 222 casualties) with no adverse effects. The experience of the IDF-MC teams in caring for civilian casualties along a hostile international border is unique. In this capacity, the IDF-MC has demonstrated effectiveness in providing lifesaving and resuscitative interventions including tranexamic acid and freeze-dried plasma. In this experience, tourniquets have been effective in controlling hemorrhage when applied early and endotracheal intubation and cricothyroidotomy have provided effective airway options in select patients. Prehospital combat casualty care presents a significant challenge both in terms of providing adequate care and in terms of data collection and analysis. The experience described in this article is one example of effective, ongoing prehospital data gathering process. Efforts to provide medical relief to victims of the Syrian civil war continue to this day. While we hope for a better future, as long as these lessons continue to accumulate, it is our obligation to use them to support improvement of trauma care and hopefully save more lives. Therapeutic, level III.