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עמוד בית
Thu, 18.07.24

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June 2005
M.A. Abdul-Ghani, J. Kher, N. Abbas and T. Najami
 Background: Type 2 diabetes is usually associated with obesity, and both conditions are frequently detected in the Arab population in Israel. Recent studies have demonstrated that diabetes can be prevented by a change in lifestyle.

Objective: To assess the prevalence of diabetes in an Arab community, the contribution of obesity to diabetes development, and the therapeutic potential of a preventive program.

Methods: Data were obtained from the medical files of diagnosed diabetes patients attending a primary care clinic in an Arab village in northern Israel.

Results: Type 2 diabetes was diagnosed in 323 patients of whom 63% were women. The prevalence of diabetes below age 65 years was significantly higher among women than men. Diabetic women were younger than men at diagnosis (48.27 vs. 59.52 respectively) and were found to have higher body mass index (34.35 vs. 30.04 respectively) at diagnosis. The age at diagnosis of diabetes was strongly correlated with BMI[1] (r = 0.97, P < 0.0001).

Conclusions: Women of Arab origin are at higher risk of developing type 2 diabetes compared to men. Obesity in women seems to be associated with higher diabetes risk as well as earlier appearance of the disease. Therefore, they will have the disease for longer and, consequently, a higher risk for complications.


 





[1] BMI = body mass index


A. Kessler, H. Gavriel, S. Zahav, M. Vaiman, N. Shlamkovitch, S. Segal and E. Eviatar
 Background: Fine-needle aspiration biopsy has been well established as a diagnostic technique for selecting patients with thyroid nodules for surgical treatment, thereby reducing the number of unnecessary surgical procedures performed in cases of non-malignant tumors.

Objectives: To evaluate the sensitivity, specificity, accuracy, and positive and negative predictive values of FNAB[1] in cases of a solitary thyroid nodule.

Methods: The preoperative FNAB results of 170 patients who underwent thyroidectomy due to a solitary thyroid nodule were compared retrospectively with the final postoperative pathologic diagnoses.

Results: In cases of a solitary thyroid nodule, FNAB had a sensitivity of 79%, specificity of 98.5%, accuracy of 87%, and positive and negative predictive values of 98.75% and 76.6% respectively. All cases of papillary carcinoma diagnosed by FNAB proved to be malignant on final histology, while 8 of 27 cases of follicular adenoma detected by preoperative FNAB were shown to be malignant on final evaluation of the surgical specimen.

Conclusions: FNAB cytology reduces the incidence of thyroidectomy since this method has excellent specificity and sensitivity and a low rate of false-negative results. It proved to be cost-effective and is recommended as the first tool in the diagnostic workup in patients with thyroid nodules.


 





[1] FNAB = fine-needle aspiration biopsy


April 2005
J. Shemer, I. Abadi-Korek and A. Seifan
 New medical technologies that offer to improve upon or completely replace existing ones are continuously appearing. These technologies are forcing healthcare policymakers to consistently evaluate new treatment options. However, this emerging medical technology has been viewed as a significant factor in increasing the cost of healthcare. The abundance of new medical alternatives, combined with scarcity of resources, has led to priority setting, rationing, and the need for further technology management and assessment. Economic evaluation of medical technologies is a system of analysis within the framework of Health Technology Assessment to formally compare the costs and consequences of alternative healthcare interventions. EEMT[1] can be used by many healthcare entities, including national policymakers, manufacturers, payers and providers, as a tool to aid in resource allocation decisions. In this paper we discuss the historical evolution and potential of EEMT, the practical limitations hindering more extensive implementation of these types of studies, current efforts at improvement, and the ethical issues influencing ongoing development. The Medical Technologies Administration of Israel's Ministry of Health is given as an example of an entity that has succeeded in practically implementing EEMT to optimize healthcare resource allocation.

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[1] EEMT = economic evaluation of medical technologies
T. Ben-Ami, H. Gilutz, A. Porath, G. Sosna and N. Liel-Cohen
Background: Women with myocardial infarction have a less favorable prognosis than men. Many studies have indicated gender bias in the evaluation and treatment of myocardial infarction, but few data exist concerning these aspects in the management of unstable angina.


Objective: To investigate gender differences in the baseline characteristics, clinical presentation, treatment and prognosis of women with unstable angina.

Method: Data were collected prospectively as part of the Acute Coronary Syndromes Israeli Survey in 2000 at Soroka University Medical Center. In-hospital management and 2 year follow-up were monitored for 226 consecutive patients with unstable angina admitted to our medical center during February and March 2000.

Results: Women were older (71 ± 12 vs. 66 ± 12, P = 0.006), more diabetic (41.3% vs. 34.5%, not significant) and hypertensive (76.3% vs. 64.6%, P = 0.07). Women presented more often with atypical chest pain (18.8% vs. 7.5%, P = 0.038). Heparin, aspirin and angiotensin-converting enzyme inhibitor were equally delivered, but more beta-blockers were administered to women (88.5% vs. 75.7%, P = 0.02) and more statins to men (48.1% vs. 35.4%, P = 0.07). Angiography rates were similar (17.7% vs. 19.6%). Similar management was documented during the 2 year follow-up. Re-hospitalization rates were similar (53.3% of women and 63.7% of men, NS). Men had a tendency to develop acute myocardial infarction more often (9.6% vs. 2.7%, P = 0.06) and to develop peripheral vascular disease (3.7% vs. 0%, P = 0.09), and they had a non-significant higher rate of coronary artery bypass graft (6.7% vs. 1.3%, P = 0.08). No gender difference was found in angiography (14.7% of women vs. 16.3% of men) or percutaneous intervention (13% vs. 16.7%). At 2 years there was no gender-related difference in mortality (13.3% of women vs. 16.3% of men, NS). Kaplan-Meier analysis for event-free survival after 2 years showed no gender difference in survival. Multi-regression analysis showed that gender was not a prognostic factor for survival.

Conclusions. We found no major difference in the management of men and women with unstable angina. Although men showed a tendency to suffer more major cardiac events, their 2 year prognosis was the same as for women.

E. Magen, D. Elbirt and Z. Sthoeger
Highly active antiretroviral therapy has dramatically improved the quality of life and life expectancy of patients with human immunodeficiency virus. However, the prolonged use of HAART[1] leads to severe metabolic adverse events. Both HIV[2]infection and HAART can cause changes in lipid and glucose metabolism as well as elevation of blood pressure, promoting the development of atherosclerosis. Cardiovascular diseases have become a major cause of mortality among HIV-infected subjects who respond well to antiretroviral therapy. Nevertheless, a proper lifestyle and pharmacologic intervention can improve cardiovascular risk factors in the HIV-treated population and significantly reduce healthcare investments in the treatment of future cardiovascular complications in this population. In this review we summarize the current knowledge of CVD[3] prevention and treatment in HIV patients.

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[1] HAART = highly active antiretroviral therapy

[2] HIV = human immunodeficiency virus

[3] CVD = cardiovascular disease
March 2005
I. Layish, A. Krivoy, E. Rotman, A. Finkelstein, Z. Tashma and Y. Yehezkelli
 Nerve agent poisoning is characterized by the rapid progression of toxic signs, including hypersecretions, tremor, convulsions and profound brain damage. In the political arena of today's world, the threat of nerve agent use against military troops has prompted armies to search for prophylactic protection. The two main strategies for prophylaxis include biological scavengers that can bind or cleave nerve agents before they react with AChE, and antidotes as prophylactic treatment. Pyridostigmine is the current pretreatment for nerve agent poisoning and is in use by most of the armed forces in Western countries. However, since pyridostigmine barely crosses the blood-brain barrier it provides no protection against nerve agent-induced central injury. Pyridostigmine is ineffective when administered without post-exposure treatment adjuncts. Therefore, other directions for prophylactic treatment should be explored. These include combinations of carbamates (reversible acetylcholinesterase inhibitors) and central anticholinergics or NMDA receptor antagonists, benzodiazepines or partial agonists for benzodiazepine receptor, and other central AChE[1] inhibitors approved for Alzheimer's disease. The transdermal route is an alternative way for delivering the prophylactic agent. Administration of prophylaxis can be extended also for civilian use during wartime.

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[1] AChE = acetylcholinesterase
February 2005
R. Yagev, E. Tsumi, J. Avigur, P. Polyakov, J. Levy and T. Lifshitz
 Background: Uveitis is an acute or chronic inflammatory process of the uvea caused by a number of etiologies. In many patients the etiology is unknown.

Objective: To investigate the effect of the Dead Sea environment (climatotherapy) on the signs, symptoms and clinical course of chronic uveitis.

Methods: Fifty-five patients with chronic uveitis were examined at the beginning and end of a 3–4 week stay at the Dead Sea region and on repeat visits to the region. Study data included demographic information, medical history, etiology, diagnosis, medication, and a complete ophthalmic examination.

Results: Statistically significant improvements were seen between the two examinations within each visit in four parameters (negative values indicate improvement): a) visual acuity for near and far: Jaeger (‑1.18 ± 0.28, P < 0.0001) and best corrected visual acuity (‑0.08 ± 0.02, P < 0.0001); b) anterior chamber flare (-0.18 ± 0.06, P < 0.01); c) anterior chamber cells (-0.16 ± 0.05), P < 0.001); and d) vitreous cells (-0.15 ± 0.09, P < 0.05). There was a significant mean improvement during visits to the Dead Sea area and a slight dissipation of the effect during the intervals between visits. Sixty-four percent of the patients reported that they required less medication and had fewer and milder attacks of uveitis following the visits.

Conclusions: The results of this study provide evidence of short- and possibly long-term improvement in the signs and symptoms of uveitis following exposure to the Dead Sea environment.

K. Stav, N. Rahimi-Levene, A. Lindner, Y.I. Siegel and A. Zisman
 Bleeding during retropubic radical prostatectomy arises from venous structures in the majority of cases. Since its introduction two decades ago, the nerve-sparing procedure with surgical control of the dorsal venous complex has led to a reduction in blood loss and blood transfusion rate. The reduction in blood loss is a result of better understanding of the prostatic blood vessel anatomy, extensive surgical experience over time, and reduction in transfusion triggers with an acceptance of lower postoperative hemoglobin values. Increased blood loss during RRP[1] is associated with poorer outcomes most probably due to surgical difficulties. But as for now, there are no decisive risk factors for clinically significant bleeding during RRP although newer technologies for hemostasis of the dorsal vein complex are being utilized.

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[1] RRP = retropubic radical prostatectomy
January 2005
E. Jaul and A. Rosin

Due to the increase in longevity today, advanced illness in the elderly exists together with severe disability and often dementia that generally become less responsive to known treatment. This leads to repeated admissions to an internal ward in a general hospital, which results not only in a lack of treatment continuity but also in inappropriate management resulting in over- or under-treatment. Towards the end of their lives, the treatment problems of non-oncologic elderly patients with advanced diseases stem from a number of factors: multiple pathology, difficulty in predicting irreversibility, staff reluctance to discontinue active specific treatment and resort to palliative care only, and the lack of a framework to ensure continuity of treatment in the community or hospital. These advanced systemic illnesses are characterized by fluctuating exacerbations and remissions, making it very difficult to assess irreversibility. This article proposes the establishment of advance centralized care planning, based on community care, the geriatric hospital and, in particular, a geriatric support unit within the skilled nursing department, catering holistically for the ongoing needs of the patient and his/her family and supplying a backup to the community care.

L. Appelbaum, R. Lederman, R. Agid and E. Libson

Background: Involvement of the liver by lymphoma is almost always secondary. A definite diagnosis can be made only after histologic examination. Recently, there has been a trend to replace surgical biopsies with percutaneous core-needle biopsies for the diagnosis of lymphoproliferative disorders.

Objectives: To describe our experience with percutaneous image-guided needle biopsies of the liver in 15 cases of primary and secondary hepatic lymphoma.

Methods: Between 1997 and 2002, 15 of all the percutaneous computerized tomography-guided core-needle liver biopsies performed at our institution yielded the diagnosis of lymphoma. We retrospectively reviewed the medical records of these patients.

Results: Seven patients had primary hepatic lymphoma (all non-Hodgkin’s lymphoma), and eight had secondary (three Hodgkin`s disease and five non-Hodgkin’s lymphoma). No major complications were caused by the percutaneous biopsies, and all biopsies were diagnostic. The imaging findings were non-specific but were characteristic and similar to previously described series. Imaging demonstrated hypodense lesions by CT, or hypoechoic or anechoic lesions by ultrasound in all but two cases in which hilar lesions resulted in biliary dilatation, both demonstrated by ultrasound

Conclusions: Review of our primary cases indicated no association with cirrhosis or AIDS in contradistinction to the worldwide experience. There were no significant complications in the 15 patients in the study, and a definite diagnosis of lymphoma was made in all the cases with no need to proceed to surgical biopsy. We highly recommend image-guided core-needle biopsy of the liver as a reliable and useful tool for the diagnosis of hepatic lymphoma.

 
 

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