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עמוד בית
Thu, 18.07.24

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October 2022
Amir Shabtay MD, Ziv Rivak MD, Elena Schleffer MD, Leonid Barski MD
September 2022
Avi Benov MD MHA, Shaul Gelikas MD MBA, Noam Fink MD, and Elon Glassberg MD MHA MBA

War is as old as history. Some may say it is older. The first Biblical war, dated 1880–1875 BCE, is depicted in the book of Genesis between nine kings in the vicinity of the Jordan river near Jericho. By the end of the war, Abraham (Abram) gets involved in saving his nephew Lot.

In addition to war, military medicine also has its roots in historical times. Hippocrates (460–377 BCE), the father of medicine, derived his medical knowledge from the battlefield, and Sushruta [1], the father of plastic surgery, mentioned the physician's preventive role in noting environmental hazards: "A common practice of the enemy is to poison the wells on the roadside, the articles of food, the shades of trees, and the fuel and forage for cattle; hence, it is incumbent on a physician marching with the troops to inspect, examine, and purify these before using any of them, in case they are poisoned."

The Greeks stated new ideas of military health, pointing to fitness promotion, gymnastics, and healthy diets to prevent illness. Over the centuries, from Alexander the Great to Napoleon’s army and wars in the 20th century, military conflicts have led to the death of hundreds of millions of people from trauma and war-related disease. Amazingly analyses of the 18th and 19th centuries have shown that 80% of the soldiers died from disease, and historians and military personnel agree that during armed conflicts in known history, only a minority of soldiers perished by the sword.

In Israel, the Israel Defense Forces-Medical Corps (IDF-MC) holds a unique position embedded in military and civilian national medicine. All medical personnel (e.g., physicians, nurses, technicians, veterinarians) who work in the IDF-MC receive their diplomas from civilian universities, train in civilian hospitals, and continue to practice in the national health system. The majority of these professionals continue to work in different civilian medical platforms in Israel after finishing their mandatory service. The IDF-MC's primary mission is to provide optimal medical care to IDF soldiers at all times (including wartime), to prevent disease and promote health, advance military medicine, and aid the civilian sector as ordered by the Government of Israel.

In this special issue of Israel Medical Association Journal (IMAJ) is to expose readers to the continuous efforts of the IDF-MC to fulfill its mission by promoting research in multiple medical fields, including trauma, ambulatory care, health administration. In addition, in this issue of IMAJ, authors discuss the unique collaboration with the civilian system during the coronavirus disease 2019 (COVID-19) pandemic.

Trauma and trauma-related injuries are the main focus of military medical research. Ben-Avi and colleagues [2] described outcomes of emergent exploratory thoracotomies on military casualties and addresses parameters that may impact the survival of these casualties. Minervini [3] further discussed the issue. Bez et al. [4] researched the impact of isolated versus non-isolated traumatic brain injuries on injury identification and decision-making by care providers in austere scenarios. Tsur and co-authors [5] described the characteristics of a unique type of terror attack: vehicle ramming.

Additional examples of treatments provided in the military prehospital arena were analyzed by Nakar and colleagues [6] who discussed how to assess pain medications administered to trauma casualties in the past two decades by IDF-MC care providers. Rittblat et al. [7] further described the use of freeze-dried plasma, a blood component used in the prehospital arena and administered via intraosseous vascular access.

The IDF-MC is a continuously changing organization emphasizing the adoption of advanced technologies and devices. Chen et al. [8] presented a blinded study on the use of point-of-care ultrasound and remote telementored ultrasound by inexperienced operators, and Sorkin et al. [9] described the BladeShield 101: a novel device for the battlefield designed to continuously measure vital signs and medical treatment provided and to transfer data through roles of care.

In this special issue of IMAJ, authors also discusse gender-related aspects at the core of medical treatment. Segal et al. [10] examined whether missed injuries were related to the medical provider's gender, while Gelikas et al. [11] assessed whether treatment with analgesia was associated with casualty gender in the military prehospital trauma setting

Over the past two and a half years, the COVID-19 pandemic has been a significant part of our lives. During these years, medical systems and teams throughout Israel and around the world struggled to adapt to this new disease and save lives fighting the pandemic. Geva et al. [12] and Shental et al. [13] discussed the impact of COVID-19 on the IDF medical system, lessons learned during the outbreak, and effects of different diseases during these times on medical treatment provided by the IDF to soldiers.

Gil A. Geva MD, Maya Nitecki MD, Itay Ketko MSc, Itay Toledo BSc, Sagi A. Shpitzer MD, Avi Benov MD MHA, Noam Fink MD, and Ariel Furer MD MBA

Background: To mitigate the spread of coronavirus disease 2019 (COVID-19), national guidelines, in accordance with international health authorities, mandated 14 days of quarantine for every close contact of a confirmed COVID-19 patient. Although health benefits are obvious, consequences are profound, especially for organizations required to maintain operational preparedness.

Objectives: To present the Israel Defense Force (IDF) experience with outbreaks regarding quarantined individuals. To weigh the consequences of quarantined individuals needed for workforce and operation.

Methods: All positive COVID-19 cases in the IDF, as measured by a positive rRT-PCR test result, between 29 February and 18 May 2020 were evaluated. Numbers of positive individuals, quarantined individuals, and confirmatory exams conducted were collected. We compared the events in four units with the largest outbreaks and assessed the impact of confirmed cases, tests conducted, and workforce loss due to quarantine.

Results: Of the 187 soldiers who tested positive for COVID-19, source of infection was traced to 140 soldiers (75%). Almost no medical treatment was delivered, and hospitalization was rare. We found a median of 15.2% (interquartile range 5.3–34) for decline in unit workforce due to quarantine measures. Maximum reduction reached 47% of the workforce in one unit.

Conclusions: Despite a relatively small number of confirmed cases, units underwent a substantial change in mode of operation due to the toll of quarantined individuals. In certain populations and organizations, perhaps a more liberal application of isolation and contact tracing is suitable due to the heavy economic burden and consequences in term of operational readiness.

Omri Shental MD MHA, Ilan Y. Mitchnik MD, Edward Barayev MD MHA, Lior Solomon MD, Liron Gershovitz MD, Shaul Gelikas MD MBA, Avi Benov MD MHA, and Yuval Ran MD MHA MPA

Background: Coronavirus disease 2019 (COVID-19) led to two nationwide lockdowns in Israel, reducing both supply and demand for medical services in the Israel Defense Force (IDF). IDF soldiers serve on bases within Israel, and most of them return home at the end of the day, similar to other armies in the world.

Objectives: To analyze the health services provided by the IDF with regard to policy changes during lockdowns.

Methods: We compared medical encounters between different services provided by the IDF Medical Corps. We related them to specific time periods: pre-first lockdown, first lockdown (and corresponding timeframes of the previous 3 years), between lockdowns, second lockdown, and post-second lockdown.

Results: Compared to past periods, we found a similar reduction of 27–30% in primary care medical encounter rates during the two lockdowns: 42–43% in sick days and 50–54% in referrals to the emergency department. Referral rates to all specialist medical encounters and elective surgeries decreased significantly during the first lockdown period and increased 1.2–3.5 times during the second lockdown.

Conclusions: A continuance of the shift to telehealth is required to withstand a future lockdown, with a full supply of secondary medical services attuned to core medical issues relevant for combat personnel. A liberal sick leave policy is required to eliminate unnecessary in-person visits, thus reducing the risk of infection.

Yotam Kolben MD, Henny Azmanov MD, Yuval Ishay MD, Efrat Orenbuch-Harroch MD, and Yael Milgrom MD.
The Rubrum Coelis Group*, and Jacob Chen MD MHA MSc, Alex Dobron BMedSc MOccH, Akiva Esterson BEMS MD, Lior Fuchs MD, Elon Glassberg MD MHA MBA, David Hoppenstein MBBCh, Regina Kalandarev-Wilson BEMS MD, Itamar Netzer MD MBA, Mor Nissan BEMS, Rachelly Shifer Ovsiovich DMD, Raphael Strugo MD, Oren Wacht BEMS MHA PhD, Chad G. Ball MD MSc FRCSC FACS, Naisan Garraway CD MD FRCSC FACS, Lawrence Gillman MD MMedEd FRCSC FACS, Andrew W. Kirkpatrick MD CD MHSc FRCSC FACS, Volker Kock CD MB, Paul McBeth MD MASc FRCS(C), Jessica McKee BA MSc, Juan Wachs PhD, and Scott K. d’Amours MDCM FRCSC FRACS FACS

Background: Handheld ultrasound devices present an opportunity for prehospital sonographic assessment of trauma, even in the hands of novice operators commonly found in military, maritime, or other austere environments. However, the reliability of such point-of-care ultrasound (POCUS) examinations by novices is rightly questioned. A common strategy being examined to mitigate this reliability gap is remote mentoring by an expert.

Objectives: To assess the feasibility of utilizing POCUS in the hands of novice military or civilian emergency medicine service (EMS) providers, with and without the use of telementoring. To assess the mitigating or exacerbating effect telementoring may have on operator stress.

Methods: Thirty-seven inexperienced physicians and EMTs serving as first responders in military or civilian EMS were randomized to receive or not receive telementoring during three POCUS trials: live model, Simbionix trainer, and jugular phantom. Salivary cortisol was obtained before and after the trial. Heart rate variability monitoring was performed throughout the trial.

Results: There were no significant differences in clinical performance between the two groups. Iatrogenic complications of jugular venous catheterization were reduced by 26% in the telementored group (P < 0.001). Salivary cortisol levels dropped by 39% (P < 0.001) in the telementored group. Heart rate variability data also suggested mitigation of stress.

Conclusions: Telementoring of POCUS tasks was not found to improve performance by novices, but findings suggest that it may mitigate caregiver stress.

August 2022
Ido Tzanani MD MPH, Daniel Bendayan MD, Anat Jaffe MD PHD, and Zohar Mor MD MPH MHA

Background: Diabetes mellitus (DM) is one of the risk factors for progression from latent to active tuberculosis. However, the effect of DM on subsequent tuberculosis treatment is still inconclusive.

Objectives: To compare tuberculosis treatment outcomes and the rate of drug resistance of tuberculosis patients with or without DM.

Methods: This case-control study was conducted between 2005 and 2015 at the only tuberculosis ward in Israel. All 80 tuberculosis patients who had DM and were hospitalized during the study period were included in this study, as were a randomized sample of 213 tuberculosis patients without DM. Demographic, clinical, and laboratory data were collected from patient files in the hospital and clinics after discharge.

Results: Tuberculosis patients with DM were more often older and more likely to be Israeli citizens with a lower socioeconomic status than patients without DM. No statistically significant differences were found in clinical presentation, radiological findings, and sputum smear tests between the two groups. Culture converting times were prolonged in patients with DM compared to normoglycemic patients. Multidrug drug resistance tuberculosis was more common among normoglycemic tuberculosis patients than tuberculosis patients with DM (9.2% vs. 1.6%, P = 0.12). Treatment success rates were 76.2% and 83.1% for tuberculosis patients with or without DM, respectively (P = 0.18). DM was not statistically significant in the multivariate analysis predicting treatment success, which controlled for age, citizenship, compliance, addictions, and chronic diseases.

Conclusions: The presence of DM does not necessarily affect tuberculosis treatment outcomes as long as treatment compliance is optimal.

Tavor Ben-Zeev MS, Yehuda Shoenfeld MD FRCP MaACR, and Jay R. Hoffman PhD

The connection between physical exercise and the brain has long been studied. The evidence showing that physical exercise plays a significant role on neurogenesis and cognitive function has primarily been based on research examining aerobic exercise. In this review, we described three exercise modalities: aerobic, anaerobic, and resistance exercise and their impact on brain plasticity and cognitive function. While each of these exercise modalities have been demonstrated to positively influence brain plasticity and cognitive function, the specific mechanism that stimulates these changes appear to differ to some degree between these training modalities. The effect of aerobic and anaerobic exercise appears to be primarily mediated by changes in expression of brain-derived neurotrophic factor (BDNF), lactate, vascular endothelial growth factor (VEGF), and several additional proteins within the brain. However, resistance exercise appears to influence brain plasticity by myokines such as irisin, insulin-growth factor-1 (IGF1), and BDNF that are secreted from skeletal tissue and stimulate neurogenesis within the brain. In addition to the various training modes, manipulation of various acute program variables such as intensity, volume, and rest intervals leads to numerous possible training paradigms that can provide a different stimulus for neurogenesis. This review focuses on the three primary training modes and their connection to neurogenesis and cognitive function.

Ayman Khoury MD MHA, Gil Gannot MD, and Amir Oron MD
July 2022
Moshe Herskovitz MD, Rachel Ben Hayun MD, and Judith Aharon MD
June 2022
Yael Steinfeld-Mass PT MSc, Aharon S. Finestone MD MHA, Shmuel Fay MD, Eli Pinchevsky MD, Liron Gershovitz MD, and Noa Ben Ami PT PhD

Background: Over the past several years there has been a marked increase in the number of Israel Defense Forces (IDF) soldiers having hip arthroscopy based on magnetic resonance arthrography diagnosis of hip labral tears and/or impingement.

Objectives: To detail characteristics of soldiers who underwent hip arthroscopy and assess outcomes and rate of return to duty.

Methods: A retrospective chart review was conducted of all soldiers who underwent hip arthroscopy 2018 to 2020, and soldiers referred for hip arthroscopy during 2021. Demographic, medical, and military service data were collected from the computerized patient record.

Results: Our study comprised 117 soldiers (29% combatants, 24% females) who underwent hip arthroscopy, mean age 22 ± 3 years, range 18–42; 45% had physiotherapy before surgery; 31% were diagnosed during or within 3 months of having back pain and 20% had been referred for psychological assistance (not related to the hip pain); 15.4% had serious adverse events. The mean time to return to any duty (including clerical work) was 8.0 ± 0.6 months; 56% of the soldiers never returned to service and were discharged from the military. During the one-year follow-up, only 6% returned to their full pre-symptom activity.

Conclusions: The short-term results of IDF soldiers who underwent hip arthroscopy during the study period were much inferior to those reported among athletes. The lack of specificity of the diagnostic tools (history, examination, and imaging) used to determine whether surgery for hip pain is likely to be beneficial in this population may be contributing to over-diagnosis and over-treatment.

May 2022
Herman Avner Cohen MD, Maya Gerstein MD, Vered Shkalim Zemer MD, Sophia Heiman MD, Yael Richenberg MD, Eyal Jacobson MD, and Oren Berkowitz PhD PA-C

Background: On 18 March 2020, the Israeli Health Ministry issued lockdown orders to mitigate the spread of coronavirus disease 2019 (COVID-19).

Objectives: To assess the association of lockdown orders on telemedicine practice and the effect of social distancing on infectious diseases in a primary care community pediatric clinic as well as the rate of referrals to emergency departments (ED) and trends of hospitalization.

Methods: Investigators performed a retrospective secondary data analysis that screened for visits in a large pediatric center from 1 January to 31 May 2020. Total visits were compared from January to December 2020 during the same period in 2019. Visits were coded during the first lockdown as being via telemedicine or in-person, and whether they resulted in ED referral or hospitalization. Month-to-month comparisons were performed as well as percent change from the previous year.

Results: There was a sharp decline of in-person visits (24%) and an increase in telemedicine consultations (76%) during the first lockdown (p < 0.001). When the lockdown restrictions were eased, there was a rebound of 50% in-person visits (p < 0.05). There was a profound decrease of visits for common infectious diseases during the lockdown period. Substantial decreases were noted for overall visits, ED referrals, and hospitalizations in 2020 compared to 2019.

Conclusions: COVID-19 had a major impact on primary care clinics, resulting in fewer patient-doctor encounters, fewer overall visits, fewer ED referrals, and fewer hospitalizations

Carmel Kasher MD, Orit Rozenberg PhD, Anna Yanovskay MD, Hana Kahanov-Edelstein, and Bibiana Chazan MD

Background: Healthcare workers (HCWs) have close interaction with confirmed or suspected coronavirus disease 2019 (COVID-19) patients. Infection rates reported among HCWs is between 3% and 17%, and asymptomatic HCWs are a potential source of nosocomial transmission to vulnerable patients and colleagues. Universal mask use and good supply of personal protective equipment was implemented early at our institution.

Objectives: To determine the rate of infection by the serologic status of HCWs during first three COVID-19 waves, based on occupation and risk of exposure, compared to Israeli general population.

Methods: We conducted a prospective cohort study at Emek Medical Center from April 2020 to April 2021. A total of 101 HCWs volunteered to be followed at six time points by a serology test and a questionnaire.

Results: A total of 101 HCWs completed six serologic tests. All participants were seronegative at the four initial tests. The cumulative seropositivity rate for COVID-19 in HCWs was 9.9% (10/101). Only three seropositive HCWs (2.97%) were hospital-acquired.

Conclusions: Seroprevalence and seroconversion dynamics of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in 101 HCWs during COVID-19 outbreaks at Emek Medical Center were similar to the epidemiological curve of positive polymerase chain reaction results of the Israeli population, as published by the Israeli Ministry of Health, at each time point. Universal mask use and infection control measures may have contributed to a low hospital infection rate.

Nomy Levin-Iaina MD, Avital Angel-Korman MD, Adi Leiba MD MHA, Esther Peres MD, Gabriel Bryk PhD, Vladimir Rapoport MD, Zeev Katzir MD, Yoram Yagil MD, and Tal Brosh-Nissimov MD MHA

Background: The reduced immune response of maintenance hemodialysis patients to coronavirus disease 2019 (COVID-19) vaccines is a major concern.

Objectives: To analyze the late (6 months after full vaccination) antibody response and compare it to early post-vaccination titer.

Methods: We conducted a multicenter prospective study of 13 hemodialysis units in Israel.

Results: We demonstrated that the low titers observed among ESRD patients 2–3 months after vaccination with the Comirnaty vaccine (median 63.8 AU/ml) declined to critically lower values 6 months after full vaccination. (Mediananti S antibodies, 31 AU/ml). Seropositivity significantly declined among hemodialysis patients from 89% to 74% (P < 0.0001), although it did not significantly change among controls.

Conclusions: We recommend all patients on hemodialysis receive a booster COVID-19 vaccine 6 months after the second dose.

 

Raymond Farah MD, Alaa Sawaed MD, and Kasem Shalata MD
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