Israel Medical Association Journal

Background: In February 2020, the World Health Organisation designated the name COVID-19 for a clinical condition caused by a virus identified as a cause for a cluster of pneumonia cases in Wuhan, China. The virus subsequently spread worldwide, causing havoc to medical systems and paralyzing global economies. The first COVID-19 patient in Israel was diagnosed on 27 February 2020.

Objectives: To present our findings and experiences as the first and largest center for COVID-19 patients in Israel.

Methods: The current analysis included all COVID-19 patients treated in Sheba Medical Center from February 2020 to April 2020. Clinical, laboratory, and epidemiological data gathered during their hospitalization are presented.

Results: Our 162 patient cohort included mostly adult (mean age of 52 ± 20 years) males (65%). Patients classified as severe COVID-19 were significantly older and had higher prevalence of arterial hypertension and diabetes. They also had significantly higher white blood cell counts, absolute neutrophil counts, and lactate dehydrogenase. Low folic acid blood levels were more common amongst severe patients (18.2 vs. 12.9 vs. 9.8, P = 0.014). The rate of immune compromised patients (12%) in our cohort was also higher than in the general population. The rate of deterioration from moderate to severe disease was high: 9% necessitated non-invasive oxygenation and 15% were intubated and mechanically ventilated. The mortality rate was 3.1%.

Conclusions: COVID-19 patients present a challenge for healthcare professionals and the whole medical system. We hope our findings will assist other providers and institutions in their care for these patients.

Background: There is a lack of information regarding acute pancreatitis in Israel. However, the most prevalent worldwide etiologic causes of acute pancreatitis are biliary stones and alcohol abuse.

Objectives: To delineate the prevalence, main causes, rate of recurrence, mortality, and complications of acute pancreatitis in southern Israel.

Methods: In this retrospective study medical files of all hospitalized patients diagnosed with acute pancreatitis during a 13-year period were reviewed.

Results: The study comprised 602 patients with acute pancreatitis (120/100,000 patients or 1.2/1000 admissions). The main causes were: biliary stones (41.5%), alcohol (8.8%), and drugs (8.3%). Disothiazide was the most common drug associated with acute pancreatitis followed by sitagliptin, angiotensin converting enzyme (ACE) inhibitors, and simvastatin. Undetermined etiology made up 33.6% of the cases. Recurrence rate was 33.8% (alcohol 3.7%, hypertriglyceridemia 1.8%). This finding had no implications on mortality rate, which was stable at 4.3%. Bilateral pleural effusion, advanced computed tomography severity index (CTSI) grading, older age, and being single were found to be poor prognostic predictive factors.

Conclusions: Biliary pancreatitis is the main cause of acute pancreatitis in southern Israel, similar to the rest of the world, and constitutes a much more common etiology than alcohol. Furthermore, drug-induced pancreatitis is a common etiology, with disothiazide being the most common drug associated with pancreatitis followed by ACE-Inhibitors, sitagliptin, and simvastatin. Recurrence of pancreatitis is common in this geographic area, and older age, advanced CTSI grading, bilateral pleural effusion, and being single are all poor prognostic predictive factors.

Background: The treatment of elderly patients with advanced stage ovarian carcinoma is challenging due to a high morbidity.

Objective: To evaluate the clinical course and outcome of elderly patients with advanced stage ovarian carcinoma receiving neoadjuvant chemotherapy (NACT).

Methods: A retrospective study of all patients with stage IIIC and IV ovarian carcinoma receiving NACT in one medical center (between 2005 and 2017). The study group criteria age was above 70 years. The control group criteria was younger than 70 years old at diagnosis. Demographics and treatment outcomes were compared between groups. Primary outcomes were progression-free survival (PFS) and overall survival (OS).

Results: Overall, 105 patients met the inclusion criteria, 71 patients (67.6%) were younger than 70 years and 34 patients (32.4%) older. Rates of interval cytoreduction were significantly higher in younger patients (76.1% vs. 50.0%, P = 0.01). Of those who underwent interval cytoreduction, no difference was found in rates of optimal debulking between groups (83.35% vs. 100%, P = 0.10). Using a Kaplan-Meier survival analysis, no significant differences were observed between groups in PFS or OS, P > 0.05. Among the elderly group alone, patients who underwent interval cytoreduction had significantly longer PFS than those without surgical intervention (0.4 ± 1.7 vs. 19.3 ± 19.4 months, P = 0.001).

Conclusions: Elderly patients with ovarian carcinoma who received NACT undergo less interval cytoreduction than younger patients, with no difference in PFS and OS. However, among the elderly, interval cytoreduction is associated with significantly higher PFS.

Background: The effect of repeated intravenous amantadine (IVAM) in advanced Parkinsonism has not been studied in depth.

Objectives: To report the experience of our medical center with repeated IVAM infusions in patients with advanced Parkinsonism.

Methods: Thirty patients with advanced Parkinsonism of various etiologies were enrolled in an open-label retrospective study. All patients were treated with IVAM infusions in a neurological daycare center. Treatment was initiated with a loading dose of 200/400 mg per day for 5 days followed by a once-daily maintenance dose of 200/400 mg every 1 to 3 weeks. Patients and their caregivers participated in a structured interview and independently completed a clinical global impression of changes scale questionnaire on various motor and non-motor symptoms.

Results: Patient mean age was 73.3 ± 9.7 years, average disease duration was 6.2 ± 5.7 years, and mean Hoehn and Yahr score was 3.2 ± 0.84. Mean duration of the IVAM treatment was 15.1 ± 11.6 months. An improvement in general function was reported by 91% of the patients and 89% of the caregivers. Most of the patients reported improvement in tremor and rigidity, as well as in gait stability, freezing of gait, and reduced falls. The treatment was safe with few side effects.

Conclusions: Our data suggest that repeated IVAM infusions could be an effective treatment against various motor symptoms and for improvement of mobility in patients with advanced Parkinsonism. Further randomized clinical trials with a larger sample size using objective measures are warranted to validate our results.

Background: Pericardial biopsies are rarely performed during the diagnosis and management of pericardial diseases. The circumstances and clinical profile of patients undergoing pericardial biopsies are largely uncharacterized.



Objectives: To examine the circumstances in which pericardial biopsies are obtained and to evaluate their diagnostic yield.



Methods: We studied a total of 100 cases (71% males, mean age 60.8 years, range 8.1–84.5 years) of surgically resected pericardium specimens obtained from 2000 to 2015 at Sheba Medical Center, the largest medical center in Israel. Patients were classified into groups according to four major histological etiologies: idiopathic pericarditis, constrictive pericarditis, malignant pericarditis, and post-cardiac injury syndrome (PCIS). The clinical history and course, laboratory, echocardiography, and histological results were reviewed retrospectively.



Results: Causes of pericarditis according to histological definitions included idiopathic pericarditis (29%), constrictive pericarditis (29%), PCIS (9%), and malignant pericarditis (26%). Overall sensitivity of the pericardial biopsy in patients with malignancy was 57.7%. During the study period, we found a trend toward an increased number of biopsies due to constrictive pericarditis and PCIS, along with a decrease in the number of biopsies performed in patients with malignant or idiopathic pericarditis. The diagnosis following biopsy did not change for any of the patients.



Conclusions: Our findings suggest a low diagnostic yield from pericardial biopsies, especially in malignant pericarditis. This conclusion, along with novel therapies, resulted in the infrequent use of pericardial biopsy in recent years.

Background: Idiopathic intracranial hypertension (IIH) is a disorder of unknown etiology. Its occurrence in the general population is 1/100,000, and 20/100,000 among overweight women of childbearing age. Familial occurrence is reportedly uncommon and not well-characterized.

Objectives: To describe a familial association with IIH.

Methods: We conducted a retrospective chart review of all familial cases of IIH examined in the neuro-ophthalmology clinic of our medical center between January 2006 and June 2013.

Results: Of a total of 520 patients with IIH, 15 had other family members with IIH (from seven different families). The family relation was a mother and daughter in two families, a brother and sister in four families, and an aunt and two first-degree cousins in the seventh family. Symptoms, course of disease, and risk factors were similar among the relatives of all seven families, except for the age at diagnosis, which was different in one family. All of the adult patients of six families were obese (body mass index 25–35 kg/m²), and all of the members of the other family were morbidly obese. There was no association between other systemic risk factors and IIH.

Conclusions: IIH occurrence within a family is more common than previously believed, and its incidence in families is more common than in the general population. The clinical course appears to be similar in family members. Our findings suggest a genetic predisposition. Further investigation of familial cases may yield useful information on the pathogenesis and genetic nature of this condition.

Background: Limited information exists about detailed clinical characteristics and management of the small subset of Brugada syndrome (BrS) patients who had an arrhythmic event (AE).

Objectives: To conduct the first nationwide survey focused on BrS patients with documented AE.

Methods: Israeli electrophysiology units participated if they had treated BrS patients who had cardiac arrest (CA) (lethal/aborted; group 1) or experienced appropriate therapy for tachyarrhythmias after prophylactic implantable cardioverter defibrillator (ICD) implantation (group 2).

Results: The cohort comprised 31 patients: 25 in group 1, 6 in group 2. Group 1: 96% male, mean CA age 38 years (range 13–84). Nine patients (36%) presented with arrhythmic storm and three had a lethal outcome; 17 (68%) had spontaneous type 1 Brugada electrocardiography (ECG). An electrophysiology study (EPS) was performed on 11 patients with inducible ventricular fibrillation (VF) in 10, which was prevented by quinidine in 9/10 patients. During follow-up (143 ± 119 months) eight patients experienced appropriate shocks, none while on quinidine. Group 2: all male, age 30–53 years; 4/6 patients had familial history of sudden death age < 50 years. Five patients had spontaneous type 1 Brugada ECG and four were asymptomatic at ICD implantation. EPS was performed in four patients with inducible VF in three. During long-term follow-up, five patients received ≥ 1 appropriate shocks, one had ATP for sustained VT (none taking quinidine). No AE recurred in patients subsequently treated with quinidine.

Conclusions: CA from BrS is apparently a rare occurrence on a national scale and no AE occurred in any patient treated with quinidine.

Background: Accurate pulse oximetry reading at hospital admission is of utmost importance, mainly for patients presenting with hypoxemia. Nevertheless, there is no accepted or evidence-based protocol for such structured measuring.

Objectives: To devise and assess a structured protocol intended to increase the accuracy of pulse oximetry measurement at hospital admission.

Methods: The authors performed a prospective comparison of protocol-based pulse-oximetry measurement with non-protocol based readings in consecutive patients at hospital admission. They also calculated the relative percentage of improvement for each patient (before and after protocol implementation) as a fraction of the change in peripheral capillary oxygen saturation (SpO₂) from 100%.

Results: A total of 460 patients were recruited during a 6 month period. Implementation of a structured measurement protocol significantly changed saturation values. The SpO₂ values of 24.7% of all study participants increased after protocol implementation (ranging from 1% to 21% increase in SpO₂ values). Among hypoxemic patients (initial SpO₂ < 90%), protocol implementation had a greater impact on final SpO₂ measurements, increasing their median SpO₂ readings by 4% (3–8% interquartile range; P < 0.05). Among this study population, 50% of the cohort improved by 17% of their overall potential and 25% improved by 50% of their overall improvement potential. As for patients presenting with hypoxemia, the median improvement was 31% of their overall SpO₂ potential.

Conclusions: Structured, protocol based pulse-oximetry may improve measurement accuracy and reliability. The authors suggest that implementation of such protocols may improve the management of hypoxemic patients.

Electrocardiography abnormalities are a common finding in athletes. To facilitate the differentiation of physiological adaptation versus pathological remodeling, a series of guidelines has emerged in the past decade that attempt to improve specificity while maintaining a high sensitivity. Recently, T wave inversion in the athletic population gained more attention, resulting in accelerated research leading to novel findings not yet integrated into clinical practice. We aim to simplify the knowledge to date and integrate it into one easy to use practical flowchart.

Background: Recent evidence suggests that olfaction is impaired in patients with pseudotumor cerebri (PTC).

Objectives: To measure suprathreshold olfactory function by using the University of Pennsylvania Smell Identification Test (UPSIT), assessing its usefulness for routine clinical use.

Methods: Forty PTC patients underwent USPIT olfactory testing.

Results: Twenty-nine out of 40 (73%) PTC patients (36 women, 4 men; mean age 34 years) had reduced suprathreshold smell sensation according to UPSIT scores: 19 (47%) had mild microsmia, 9 (23%) had moderate microsmia, and one (3%) was classified as having severe microsmia. The mean UPSIT score of all patients was 32.4 (95% confidence interval 31.4–33.4). Multivariate regression analysis found that UPSIT scores were not related to disease activity, disease duration, initial intracranial pressure (ICP), or visual function.

Conclusions: Many PTC patients have reduced suprathreshold olfactory dysfunction that can be discovered by UPSIT, a rapidly administered smell test, which is suitable for clinical office use.

Background: Systemic CD11b+ cells have been associated with several cardiac diseases, such as chronic heart failure.

Objectives: To assess the levels of circulating CD11b+ cells and pro-inflammatory cytokines in cardiomyopathy induced by chronic adrenergic stimulation.

Methods: Male Lewis rats were injected with low doses of isoproterenol (isoprel) for 3 months. Cardiac parameters were tested by echocardiography. The percentage of CD11b+ cells was tested by flow cytometry. The levels of inflammatory cytokines in the sera were determined by an inflammation array, and the expression levels of cardiac interleukin-1 (IL-1) receptors were analyzed by real-time polymerase chain reactions. Cardiac fibrosis and inflammation were determined by histological analysis.

Results: Chronic isoprel administration resulted in increased heart rate, cardiac hypertrophy, elevated cardiac peri-vascular fibrosis, reduced fractional shortening, and increased heart weight per body weight ratio compared to control animals. This clinical presentation was associated with accumulation of CD11b+ cells in the spleen with no concomitant cardiac inflammation. Cardiac dysfunction was also associated with elevated sera levels of IL-1 alpha and over expression of cardiac IL-1 receptor type 2.

Conclusions: CD11b+ systemic levels and IL-1 signaling are associated with cardiomyopathy induced by chronic adrenergic stimulation. Further studies are needed to define the role of systemic immunomodulation in this cardiomyopathy.