Israel Medical Association Journal

Background: Military medicine has evolved significantly over the past 50 years, advancing from basic treatments and limited evacuations to sophisticated combat casualty care. Innovations such as hemorrhage control, early blood product administration, and telemedicine have greatly improved battlefield care. Rapid evacuation systems and skilled medical teams have reduced mortality and morbidity rates.

Objectives: To review the transformation of the Israel Defense Forces Medical Corps (IDF-MC) in combat casualty care over the past 50 years, focusing on recent applications during the Iron Swords war.

Methods: Data were collected from the personal experiences of IDF-MC doctors, IDF archives, and relevant military medical literature, with an emphasis on life-saving strategies, personnel, equipment, mental health support, and civil–military cooperation.

Results: Rapid evacuation and immediate care have improved survival rates, while increased front-line deployment of medical staff has enhanced response capabilities. Modern medical tools and techniques, such as tourniquets and blood products, have been widely adopted. Improved psychological support strategies ensure better mental health outcomes for soldiers. Enhanced coordination with civilian trauma systems optimizes care and resource allocation, leading to more efficient and effective casualty treatment.

Conclusions: The IDF-MC's advancements in rapid evacuation and front-line medical support have significantly improved combat casualty outcomes. Continued innovation and collaboration with civilian systems are essential for further progress in military medicine. Future technological advancements are anticipated to further enhance military medical care.

Background: Allergic rhinitis (AR) is a common illness. Worldwide prevalence varies between 5% and 50% depending on self-reported surveys, test-based studies, geographic location, and age. Despite the clinical relevance of AR in the Israeli population, few studies have characterized the sensitization profiles and key pollen aeroallergen.

Objectives: To describe the most common aeroallergens eliciting a positive skin prick test (SPT) in AR patients across three different main climate zones in Israel.

Methods: We evaluated SPT of aeroallergen sensitization in 1308 AR patients from three topographically and climatically different areas of Israel, describing humidity levels, temperature, and urbanization.

Results: The overall prevalence of positive SPT among patients presenting with AR symptoms was 86%. Indoor aeroallergen sensitization was observed in 76% of patients. Monosensitization was noted in 20% of patients, and polysensitization was noted in 65%. Among the 1308 cases of AR, the top four aeroallergens were mites, olive tree pollen, grass pollen, and cat dander. The top aeroallergen in Israel's central district were mites (62%), olive tree pollen (36%), and grass pollen (30%). In the coastal plains, mites (92%), cat dander (36%), and olive tree pollen (33%) were most prevalent, and in the south mites (77%), olive tree pollen (30%), and grass pollens (26%) were most common.

Conclusions: The top four aeroallergens eliciting a positive SPT were mites, olive tree pollen, grass pollen, and cat dander. Identification of a major aeroallergen can tailor the allergist's SPT panels and specify which aeroallergen should be used for immunotherapy.

Background: The Agatston coronary artery calcium (CAC) score is a decision-guiding aid for risk assessment and personalized management in the primary prevention of atherosclerotic cardiovascular disease.

Objectives: To explore the real-life clinical experience of CAC testing by characterizing its indications, significance of scores, and corresponding lipid-lowering treatments.

Methods: A retrospective descriptive study of patients treated at the lipids clinic at Rabin Medical Center (Beilinson Campus), who underwent CAC score evaluation between 2017 and 2022 was conducted. The data collected from electronic medical files included demographics, co-morbidities, indications for the test, CAC score levels, and the recommended therapeutic regimen.

Results: The study cohort included 88 patients. The main indication was assessment of the existence of atherosclerosis in cases where there was no clear indication for lipid lowering treatment (65, 74%). In most patients, there was no evidence of atherosclerosis (CAC = 0 AU, n=30) or only mild disease (CAC=1–99 AU, n=35). As the CAC score increased, more patients were prescribed lipid lowering treatments, from very few prescriptions in those with a CAC score of 0 AU and almost 100% among those with score of ≥ 400 AU. The factors that predicted CAC > 0 AU were male sex and older age.

Conclusions: CAC scores should be used more often to determine risk assessment. Further analysis of the implications of scores between 0–400 AU is needed.

IgG4-related disease (IgG4-RD) is an immune-mediated fibroinflammatory condition. Accumulated research and data since 2003 have increasingly affirmed its classification as a systemic disease. Although IgG4-RD generally presents with involvement of one or several organ systems, it can affect almost any organ. The disease manifests gradually with the development of tumor-like lesions.

Constitutional symptoms, such as systemic fever and elevated inflammatory markers, are generally absent in association with this pathological condition. However, it is common for patients to exhibit allergy characteristics in addition to a slight increase in peripheral blood eosinophilia. The clinical manifestations of the disease exhibit variability on the specific organ system affected. Specific involvement of organs can ultimately result in organ failure. For example, retroperitoneal fibrosis commonly leads to post-renal failure [1]. The 2020 Revised Comprehensive Diagnostic (RCD) criteria for IgG4-RD include three components for diagnosis: clinical and radiological components (1), serological diagnosis (2), and unique pathological diagnosis (3). When all three are present it is a definitive diagnosis. The presence of components 1 + 3 constitutes a probable diagnosis, while the presence of components 1 + 2 indicates possible diagnosis [2].

Testicular involvement of IgG4-RD has been described in a few case reports. However, the uniqueness of our case is the manifestation of a testicular mass as a different target organ of relapse in a patient in remission from retroperitoneal fibrosis.

Background: Galactin-3 has been found to be involved in oocyte maturation, folliculogenesis, implantation, and placentation. The expression of Galactin-3 in the endometrium of women who have successfully undergone in vitro fertilization (IVF) has been suggested as a potential biomarker for predicting successful embryo implantation.

Objectives: To evaluate the expression of Galactin-3 in the sera and follicular fluid of women during IVF cycles.

Methods: This prospective research included 21 women undergoing IVF treatments. Blood samples were taken at four points: day 2 before starting stimulation, trigger day, day of oocyte retrieval, and day of the β-human chorionic gonadotropin level test. In addition, follicular fluid samples were taken on the day of oocyte retrieval. Galactin-3 protein levels were measured in serum and follicular fluid using enzyme-linked immunosorbent assay.

Results: Galactin-3 levels on the stimulation day were positively correlated to estradiol levels on the day of the trigger (0.59, P = 0.02). Among women who achieved pregnancy compared to those who did not, Galectin-3 serum levels were higher on the day of the trigger (17.93 ± 4.35 ng/ml vs. 11.01 ± 3.73 ng/ml, P = 0.015).

Conclusions: These findings may imply a potential role of Galectin-3 on the success of IVF treatments, underscoring the potential importance of inflammatory processes in fertility.

Background: Clinical toxicology is not a certified specialty in Israel, consequently there are a limited number of toxicologists and toxicology services available for consultation.

Objectives: To establish a medical toxicology consultation service focusing on bedside consultations, which had not previously been available in Israel.

Methods: This single-center, retrospective chart review of toxicology consults was conducted during the first years after the initiation of a new toxicology service.

Results: From September 2017 to December 2021, 1703 toxicology consultations were conducted. The most common exposures and reasons for consultation included psychotropic medications (427, 23%), analgesics and anti-inflammatory medications (353, 19%), household products (312, 17%), substances of abuse (240, 13%), and natural toxins (142, 8%). Bedside medical toxicology consultations were performed in 1036 cases (62%) during daytime and night shifts. The number of consultation requests increased steadily over the study period.

Conclusions: The new toxicology service led to a significant change in the institution’s approach to toxicological patients. A bedside toxicology service could help reduce the healthcare burden on national poison centers and can offer readily available, personalized, medical toxicology care.

Background: Hemodialysis requires reliable, recurrent access to the circulatory system. Central venous tunneled dialysis catheters (TDC) are frequently used for patients receiving hemodialysis as a bridge to permanent vascular access or as a final option. TDC are prone to complications such as infection and dysfunction.

Objective: To assess the prevalence and predictors of TDC dysfunction in a cohort of chronic hemodialysis patients.

Methods: This single-center, retrospective study was based on data from an electronic database of chronic hemodialysis patients during 5 years of follow-up.

Results: A total of 625 TDC were inserted in 361 patients, of which 234 (37.4%) were replaced due to dysfunction. The main insertion site was the right internal jugular vein. Diabetes mellitus was an important predictor of TDC dysfunction and was significantly correlated with TDC extraction. Chronic anticoagulation and antiplatelet treatment did not affect the rate of TDC dysfunction or replacement.

Conclusions: TDC use for chronic dialysis patients is increasing and dysfunction is a major problem. In our study, we highlighted the high prevalence of TDC dysfunction and the need for further research to improve hemodialysis access as well as TDC patency and function.

Background: Myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD) is a rare autoimmune demyelinating disorder of the central nervous system. Optic neuritis (ON) is the most common clinical manifestation of MOGAD in adults. In 2023, new MOGAD diagnostic criteria were proposed, highlighting the importance of supplemental criteria when MOG-immunoglobulin G (IgG) titers are unavailable.

Objective: To investigate the applicability of the 2023 MOGAD criteria in patients diagnosed with MOGAD and treated before the availability of MOG-IgG titers.

Methods: We conducted a retrospective chart review of patients classified as MOGAD between 2010 and 2023 at Rabin Medical Center. Patient demographics as well as clinical and imaging data were collected, including visual acuity, expanded disability status score, core demyelinating events, antibody status, and brain and optic nerve magnetic resonance imaging data. Patients fulfilling the 2023 MOGAD criteria were reported as definite MOGAD.

Results: Fifteen patients met the 2023 MOGAD diagnostic criteria despite lack of MOG-IgG titer. The most common supplemental criterion meeting the 2023 MOGAD criteria was optic disc edema (n=12, 80%), followed by longitudinal optic nerve involvement (53%), bilateral ON (40%), and perineural optic sheath enhancement (33%).

Conclusions: All patients with a clinical diagnosis of MOG-ON in our cohort fulfilled the 2023 MOGAD criteria despite the lack of antibody titers. The 2023 MOGAD criteria can be reliably applied to Israeli cohorts, prior to availability of MOGAD IgG titers, with particular attention to additional supplemental criteria. Since the 2023 MOGAD criteria were published, MOGAD IgG titers have been added to routine testing at our facility.

One of the most wonderful things in the practice of medicine is the endless opportunities to learn new things and encounter novel medical conditions and their manifestations. However, not all new experiences are necessarily welcomed. As we recently discovered, there are some medical encounters that no physician should ever face, because no patient should have to endure these encounters. That is, no person, and certainly no child, should ever go through the kind of cruel captivity we recently encountered following the horrific events of 7 October 2023 in Israel.

Background: Pseudomonas aeruginosa (PSA) is an infectious pathogen associated with acute appendicitis; however, it is not consistently addressed by empirical antibiotic therapy, despite potential complications.

Objectives: To investigate the incidence, predictors, and outcomes of PSA-associated acute appendicitis in children.

Methods: We conducted a retrospective analysis involving pediatric patients who underwent acute appendicitis surgery and had positive peritoneal cultures. Clinical, microbiological, and intraoperative data were extracted from medical records.

Results: Among 2523 children with acute appendicitis, 798 (31.6%) underwent peritoneal cultures, revealing 338 positive cases (42.3%), with PSA detected in 77 cases (22.8%). Children with PSA were three times more likely to exhibit high intraoperative grading ≥ 3 (93.4% vs. 76.8%, 95% confidence interval [95%CI] 1.2–8.3, P = 0.023) and nearly four times more likely to have polymicrobial cultures (88.3% vs. 62.1%, 95%CI 1.8–8.0, P < 0.001) than those without PSA in peritoneal cultures. Duration of symptoms did not predict PSA isolation (P = 0.827). Patients with PSA had longer median hospital stays (8 days, interquartile range [IQR] 7–10) than those with other pathogens (7 days, IQR 5–9) (P = 0.004). Antibiotic treatment duration, intensive care unit admission rates, readmission, and mortality were similar between the two groups (P = 0.893, 0.197, 0.760, and 0.761, respectively).

Conclusions: PSA is a common pathogen in children diagnosed with acute appendicitis and positive peritoneal cultures. The likelihood of isolating PSA increases with high-grade intraoperative assessment and in the presence of multiple pathogens in peritoneal cultures, suggests antipseudomonal treatment.

Background: Long-term support with a HeartMate 3 (HM3) left ventricular assist device (LVAD) has improved outcomes of patients with end-stage heart failure. However, there is a paucity of data on the outcomes of patients who underwent concomitant cardiac surgical procedure (CCSP) during HM3-LVAD implantation.

Objectives: To assess our single-center experience with patients who underwent CCSP during the implantation of an HM3-LVAD.

Methods: From December 2016 until April 2022, 131 adult patients underwent HM3-LVAD implantation. A total of 23 patients underwent CCSP during the HM3-LVAD implantation+CCSP, and 108 underwent only HM3-LVAD implantation (HM3-only).

Results: The median age was 59 ± 11 years (range 54-67), 82% (n=108) were male, and 76% (n=100) were implanted as a bridge-to-transplant. The concomitant procedures performed during the implantation included 8 aortic valve repairs/replacements, 14 tricuspid valve repairs, 4 patent foramen ovales or atrial septal defect closures, and 3 other cardiac procedures. The mean cardiopulmonary bypass time was 113 ± 58 minutes for the HM3-only group and 155 ± 47 minutes for the HM3+CCSP group (P = 0.007). The mortality rates at 30 days, 6 months, and 12 months post-implantation were 2 (9%), 5 (22%), and 6 (26%) respectively for the HM3+CCSP group, and 7 (6%), 18 (17%), and 30 (28%) for the HM3-only group (P = 0.658, 0.554, and 1.000).

Conclusions: Our experience demonstrated no significant difference in the 30-day, 6-month, and 12-month mortality rates for patients who underwent a CCSP during HM3-LVAD implantation compared to patients who did not undergo CCSP during HM3-LVAD implantation.

Background: The recreational use of nitrous oxide (N₂O) has increased in recent years with a noticeable surge in the incidence of nitrous oxide-related myeloneuropathy.

Objectives: To raise awareness of increasing myeloneuropathy due to recreational nitrous oxide misuse in Israel.

Methods: We conducted a case series documenting the clinical and investigative features of eight patients presenting with nitrous oxide-induced myeloneuropathy who were admitted to our departments.

Results: Paresthesia was the chief complaint in all patients, with sensory gait ataxia being a common feature, which was often accompanied by Romberg's sign and mild lower limb weakness. Vitamin B12 levels were below the normal range in seven patients, accompanied by elevated homocysteine and methylmalonic acid levels. Magnetic resonance imaging scans revealed hyperintense signals in the dorsal columns of the cervical spine. All patients improved following vitamin B12 injections.

Conclusions: Enhancing awareness, prompting the use of appropriate investigations, and advocating for timely treatment are needed to overcome the risks associated with nitrous oxide misuse.

Background: Group A Streptococcus (GAS) is the predominant bacterial pathogen of pharyngitis in children. However, distinguishing GAS from viral pharyngitis is sometimes difficult. Unnecessary antibiotic use contributes to unwanted side effects, such as allergic reactions and diarrhea. It also may increase antibiotic resistance. 

Objectives: To evaluate the effect of a machine learning algorithm on the clinical evaluation of bacterial pharyngitis in children.

Methods: We assessed 54 children aged 2–17 years who presented to a primary healthcare clinic with a sore throat and fever over 38°C from 1 November 2021 to 30 April 2022. All children were tested with a streptococcal rapid antigen detection test (RADT). If negative, a throat culture was performed. Children with a positive RADT or throat culture were considered GAS-positive and treated antibiotically for 10 days, as per guidelines. Children with negative RADT tests throat cultures were considered positive for viral pharyngitis. The children were allocated into two groups: Group A streptococcal pharyngitis (GAS-P) (n=36) and viral pharyngitis (n=18). All patients underwent a McIsaac score evaluation. A linear support vector machine algorithm was used for classification.

Results: The machine learning algorithm resulted in a positive predictive value of 80.6 % (27 of 36) for GAS-P infection. The false discovery rates for GAS-P infection were 19.4 % (7 of 36).

Conclusions: Applying the machine-learning strategy resulted in a high positive predictive value for the detection of streptococcal pharyngitis and can contribute as a medical decision aid in the diagnosis and treatment of GAS-P.

Background: Pyogenic flexor tenosynovitis (PFT) is a common and severe hand infection. Patients who present early can be treated with intravenous antibiotics.

Objectives: To determine whether PFT caused by animal bites and treated with antibiotics leads to a different outcome than other disease etiologies due to the extensive soft tissue insult and different bacterial flora.

Methods: We conducted a retrospective cohort study of 43 consecutive patients who presented with PFT between 2013 and 2020. The 10 patients who presented with PFT following an animal bite were compared to those who presented with PFT caused by any other etiology.

Results: Patients who were bitten pursued medical attention sooner: 1.9 ± 1.4 days compared with 5.3 ± 4.7 days (P = 0.001). Despite the quicker presentation, patients from the study group received similar antibiotic types and duration as controls. All patients were initially treated with intravenous antibiotics under surveillance of a hand surgeon. One patient (10%) from the study group and four controls (12%) were treated surgically (P = 1). Average follow-up was 17 ± 16 days. At the end of follow-up, one (10%) patient from the study group and three (9%) controls sustained mild range of motion limitation and one (3%) patient from the control group had moderate limitations (P = 0.855).

Conclusions: Intravenous antibiotic treatment, combined with an intensive hand surgeon follow-up, is a viable option for the treatment of PFT caused by animal bites.

Background: On 7 April 1933, the Nazi Law for the Restoration of the Professional Civil Service was enacted. The law triggered the dismissal of most Jewish medical staff from German universities. A few Jewish professors in Berlin were permitted to continue their academic activity with restrictions. Those professors were gradually dismissed as laws and restrictions were enforced.

Objectives: To identify the last Jewish medical professors who, despite severe restrictions, continued their academic duties and prepared students for their examinations in Berlin after the summer of 1933.

Methods: We reviewed dissertations written by the medical faculty of Berlin from 1933 to 1937 and identified Jewish professors who mentored students during those years.

Results: Thirteen Jewish tutors instructed dissertations for the medical examinations after the Nazi regime seized power. They were employees of different university hospitals, including the Jewish hospitals. We did not identify Aryan students instructed by Jewish professors. The professors were active in different medical disciplines. Half of the reviewed dissertations were in the disciplines of surgery and gynecology. The last Jewish tutors were dismissed in October 1935. However, some of their studies were submitted for examination after that date.

Conclusions: After the Nazi regime seized power, academic activities and medical research by Jewish professors declined but did not stop. However, these professors worked with only Jewish students on their theses. Most dissertations were approved and examined after the Jewish academics were dismissed by the university, in some cases even after they left Germany.