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עמוד בית
Fri, 01.03.24

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July 2021
Jacob Weinstein MD, Amichai Shinfeld MD, Michal Simchen MD, Tal Cahan MD, Jonathan Frogel MD, Michael Arad MD, Haim Berkenstadt MD, and Rafael Kuperstein MD

Background: Pregnant women with Marfan syndrome (MS) have a high risk of aortic dissection around delivery and their optimal management requires a multi-disciplinary approach, including proper cardio-obstetric care and adequate pain management during labor, which may be difficult due to the high prevalence of dural ectasia (DE) in these patients.

Objectives: To evaluate the multidisciplinary management of MS patients during labor.

Methods: Nineteen pregnant women (31 pregnancies) with MS were followed by a multi-disciplinary team (cardiologist, obstetrician, anesthesiologist) prior to delivery.

Results:. Two patients had kyphoscoliosis; none had previous spine surgery nor complaints compatible with DE. In eight pregnancies (7 patients), aortic root diameter (ARd) before pregnancy was 40 to 46 mm. In this high-risk group, one patient underwent elective termination, two underwent an urgent cesarean section (CS) under general anesthesia, and five had elective CS; two under general anesthesia (GA), and three under spinal anesthesia. In 23 pregnancies (12 patients), ARd was < 40 mm. In this non-high-risk group three pregnancies (1 patient) were electively terminated. Of the remaining 20 deliveries (11 patients), 14 were vaginal deliveries, 9 with epidural analgesia and 5 without. Six patients had a CS; four under GA and two2 under spinal anesthesia. There were no epidural placement failures and no failed responses. There were 2 cases of aortic dissection, unrelated to the anesthetic management.

Conclusions: The optimal anesthetic strategy during labor in MS patients should be decided by a multi-disciplinary team. Anesthetic complications due to DE were not encountered during neuraxial block

January 2019
Ayelet Grupper MD, Moshe Shashar MD, Talia Weinstein MD PhD, Orit Kliuk Ben Bassat MD, Shoni Levy MD, Idit F. Schwartz MD, Avital Angel MD, Aharon Baruch MD, Avishay Grupper MD, Gil Chernin MD and Doron Schwartz MD

Background: Dialysate purity contributes to the inflammatory response that afflicts hemodialysis patients.

Objectives: To compare the clinical and laboratory effects of using ultrapure water produced by a water treatment system including two reverse osmosis (RO) units in series, with a system that also includes an ultrapure filter (UPF).

Methods: We performed a retrospective study in 193 hemodialysis patients during two periods: period A (no UPF, 6 months) and period B (same patients, with addition of UPF, 18 months), and a historical cohort of patients treated in the same dialysis unit 2 years earlier, which served as a control group.

Results: Mean C-reactive protein, serum albumin and systolic blood pressure worsened in period B compared to period A and in the controls.

Conclusions: A double RO system to produce ultrapure water is not inferior to the use of ultrapure filters.

December 2015
Aviv Weinstein PhD, Yafa Yaacov BA, Michal Manning BA, Pinhas Danon MD and Abraham Weizman MD

Background: Use of the internet and videogames by children and adolescents has risen dramatically over the last decade. Increasing evidence of internet and videogame addiction among children is causing concern due to its harmful physical, emotional and social consequences. There is also emerging evidence for an association between computer and videogame addiction and attention deficit/hyperactivity disorder (ADHD). 

Objectives: To investigate the relationship between ADHD and internet addiction.


Methods: We compared 50 male schoolchildren, mean age 13 years, diagnosed with ADHD to 50 male schoolchildren without ADHD on measures of internet addiction, internet use and sleep patterns.


Results: Children with ADHD had higher scores on the Internet Addiction Test (IAT), used the internet for longer hours, and went to sleep later than those without ADHD. 


Conclusions: These findings indicate an association of ADHD, sleep disorders and internet/videogame addiction.


 
January 2015
Zohar Mor MD MPH MPH, Orly Weinstein MD MHA, Dini Tischler-Aurkin MD MPA, Alex Leventhal MD MPH MPA, Alon Yaniv and Itamar Grotto MD PhD MPH

Background: Since 2006 more than 60,000 migrants arrived in Israel from the Horn of Africa (HoA: Sudan, Eritrea, Ethiopia). They were detained in prison and screened for tuberculosis (TB) by means of an interview and chest X-ray (CXR).

Objectives: To evaluate the yield of this screening process.

Methods: This cross-sectional study evaluated the validity of CXR in a random sample of 1087 of the 5335 HoA migrants (20.4%) who arrived in 2009, and assessed its related costs.

Results: Sixty-two migrants (5.7%) had CXRs with TB-suspicious findings, and 11 of them were finally diagnosed with TB (17.7% of all TB-suspicious CXRs). TB point-prevalence was 1000 cases per 100,000 migrants (1.0%). As no additional TB cases were diagnosed on arrival, CXR sensitivity, specificity and positive predictive value were 100%, 96.1% and 17.7%, respectively. The interview did not contribute to the detection of migrants with TB. Direct costs related to the detection of single TB cases in prison was 17,970 shekels (US$ 4585), lower than the treating cost of 28,745 shekels ($ 7335). During 2008–2010, 88 HoA migrants who had been screened at the prison after crossing the border were later diagnosed with TB in the community. The average annual TB incidence was 132 cases/100,000 migrants. We traced 56 (63.6%) of the CXRs that were performed during detention. Of those, 41 (73.2%) were unremarkable, 8 (14.2%) were TB suspicious and 7 (12.5%) had non-TB-related abnormalities.

Conclusions: CXR-based screening is a valid and cost-saving tool for screening  HoA migrants for TB; the interview has significant limitations. 

December 2010
O. Baron-Epel, L. Keinan-Boker, R. Weinstein and T. Shohat

Background: During the last few decades much effort has been invested into lowering smoking rates due to its heavy burden on the population's health and on costs for the health care services.

Objectives: To compare trends in smoking rates between adult Arab men and Jewish men and women during 2000–2008.

Methods: Six random telephone surveys were conducted by the Israel Center for Disease Control in 2000–2008 to investigate smoking rates. The number of respondents was 24,976 Jews men and women and 2564 Arab men. The percent of respondents reporting being current smokers was calculated for each population group (Jews and Arabs) by age, gender and education, and were studied in relation to time.

Results: Among Jewish men aged 21–64 smoking declined during 2000–2008 by about 3.5%. In the 21–44 age group this decline occurred only among respondents with an academic education. Among Jewish women this decline also occurred at ages 21–64, and in the 45–64 age group this decline was due only to a decline in smoking among those with an academic education. Among Arab men aged 21–64 an increase in smoking rates of about 6.5% was observed among both educated and less educated respondents.

Conclusions: Smoking prevalence is declining in Israel among Jews, but not among Arab men. The larger decrease in smoking rates among academics will, in the future, add to the inequalities in health between the lower and higher socioeconomic status groups and between Arabs and Jews. This calls for tailored interventions among the less educated Jews and all Arab men.

January 2007
R. Ilia, D. Zahger, C. Cafri, A. Abu Ful, J. Marc Weinstein, S. Yaroslavtsev, H. Gilutz, G. Amit

Background: The significance of arrhythmia occurring after successful recanalization of an occluded artery during treatment following primary percutaneous coronary intervention for ST-segment elevation myocardial infarction is controversial.

Objectives: To study the association of reperfusion arrhythmia with short and long-term survival.

Methods: We used a prospective registry of consecutive STEMI[1] patients undergoing PPCI[2]. Patients with an impaired epicardial flow (TIMI flow grade < 3) at the end of the procedure were excluded.

Results: Of the 688 patients in the study group, 22% were women. Mean (± SD) age of the cohort was 61 (± 14) years and frequent co-morbidities included diabetes mellitus (25%), dyslipidemia (55%), hypertension (43%) and smoking (41%). RA[3] was recorded in 200 patients (29%). Patients with RA had lower rates of diabetes (16% vs. 30%, P < 0.01) and hypertension (48% vs. 62%, P < 0.01), and a shorter median pain-to-balloon time (201 vs. 234 minutes, P < 0.01) than patients without RA. Thirty day mortality was 3.7% and 8.3% for patients with and without RA, respectively (P = 0.04). After controlling for age, gender and pain-to-balloon time the hazard ratio for mortality for patients with RA during a median follow-up period of 466 days was 0.46 (95% confidence interval 0.23–0.92).

Conclusions: The occurrence of RA immediately following PPCI for acute STEMI is associated with better clinical characteristics and identifies a subgroup with a particularly favorable prognosis.






[1] STEMI = ST-segment elevation myocardial infarction



[2] PPCI = primary percutaneous coronary intervention



[3] RA = reperfusion arrhythmia


May 2006
F. Sperber, Y. Weinstein, D. Sarid, R. Ben Yosef, A. Shalmon and N. Yaal-Hahoshen

Background: The current methods for pre‑ and post‑chemotherapy examination of the extent of disease in the breast and lymph nodes do not provide sufficiently accurate information and, not infrequently, the surgeon has to re‑operate.

Objectives: To correlate the findings between three methods of examination (physical examination, ultrasonography, mammography), all performed by the same oncologic and radiologic team, in patients with locally advanced breast cancer or a tumor/breast tissue ratio that precludes breast-conserving surgery.

Methods: Forty patients (median age 48 years, range 24–73) with locally advanced breast cancer or with a tumor/breast ratio that precluded breast‑conserving surgery were evaluated by the same medical team and received neoadjuvant chemotherapy. Surgery was performed in all, and the pathologic specimen was correlated with the results of the other examinations.

Results: In the pre‑chemotherapy evaluation, the imaging findings of the breast correlated with the physical findings in 78% of the patients and with the axilla examination in 66.7%. In the post‑chemotherapy analysis, imaging agreed with the physical findings of the breast in 62.2% and in 76.3% of the axilla. Sonography best detected occult breast disease and axillary lymph nodes but correlated with pathology in only 58% of the patients in diagnosing breast tumor and in 65.8% in diagnosing axillary lymph nodes. Mammography correlated with breast and lymph node pathology in half the patients.

Conclusions: None of the classical methods of post‑neoadjuvant chemotherapy evaluations could adequately delineate the actual extent of the disease in the breast and axillary lymph nodes. More exacting techniques of imaging combined with the classical methods are required.

 
 

May 2002
Daphna Weinstein, MD, Mehrdad Herbert, MD, Noa Bendet, MD, Judith Sandbank, MD and Ariel Halevy, MD

Background: Carcinoma of the gallbladder is diagnosed in 0.3–1.5% of all cholecystectomy specimens.

Objectives: To establish the overall rate of gallbladder carcinoma and unexpected gallbladder carcinoma based on our experience.

Methods: We retrospectively evaluated all consecutive cholecystectomies performed in our ward during a 6 year period in order to determine the incidence of gallbladder carcinoma and to identify common characteristics of this particular group of patients.

Results: Of the 1,697 cholecystectomies performed in our ward during the 6 years, gallbladder carcinoma was diagnosed in six patients (0.35%), but was not suspected prior to surgery in any of them. In accordance with the literature, the occurrence in women (5/6) was higher than in men (1/6). The mean age was 70 years (range 55–90). The most common symptom was abdominal pain; the majority (5/6) had cholelithiasis, and the pathologic report confirmed the diagnosis of adenocarcinoma in all six patients.

Conclusions: The overall incidence of unsuspected gallbladder carcinoma in our series was 0.35%. We could not find any common characteristics for this particular group of patients when compared to patients with non-malignant pathology.

March 2001
Talia Weinstein, MD, Ran Tur-Kaspa, MD, Avry Chagnac, MD, Asher Korzets, MD, Yacov Ori, MD, Dina Zevin, MD, Michal Herman, MD and Uzi Gafter, MD PhD

Background: Hepatitis C virus is the major cause of acute and chronic hepatitis in patients with end-stage renal disease receiving replacement therapy.

Objectives: To define the prevalence of HCV RNA in a population of patients on dialysis in Israel, to determine the relative risk of acquiring HCV infection while treated by hemodialysis or chronic ambulatory peritoneal dialysis, and to define the HCV genotypes in this population.

Methods: During 1995 we studied 162 dialysis patients. Information was obtained regarding the mode of dialysis, years of treatment, number of blood transfusions, and results of serological testing for HCV, hepatitis B virus, and human immunodeficiency virus. Anti-HCV antibodies were tested by a third-generation microparticle enzyme immunoassay. HCV RNA was determined by polymerase chain reaction. HCV genotyping was performed by a hybridization assay.

Results: HCV RNA was detected in 18% of the HD group and 7% of the CAPD group. The number of HCV RNA-positive patients was significantly higher in the HD than the CAPD group (P < 0.05). HCV RNA-positive HD patients were treated longer than the HCV RNA-negative patients (P < 0.02).

Conclusions: Third-generation immunoassay proved to be highly sensitive (94%) and specific (91%) in identifying HCV RNA positivity. Several HCV subtypes were detected, lb being the most frequent. Identification and isolation of infected HCV patients may minimize its spread in dialysis units and prevent cross-infection.

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