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עמוד בית
Thu, 18.07.24

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July 2005
A. Nadu, Y. Mor, J. Chen, M. Sofer, J. Golomb and J. Ramon

Background: Data during the last decade show that laparoscopic nephrectomy is becoming an accepted and advantageous minimally invasive alternative to the open procedure.

Objective: To evaluate the efficacy, safety and reproducibility of laparoscopic nephrectomy in a series of 110 consecutive procedures.

Methods: A total of 110 patients underwent laparoscopic nephrectomy in our institution during the last 3 years. Their data were entered into a database and analyzed, including age, gender, indications for surgery, operative time, blood loss, intraoperative complications, conversion rates, and postoperative complications (defined as complications occurring up to 1 month after surgery). Histologic results and outpatient follow-up were also recorded.

Results: Mean age at surgery was 63 years (range 21–89 years). The indications for surgery included solid renal masses in 64 cases, non-functioning kidneys in 35, and collecting system or ureteral tumors in 11; and the procedures performed were radical nephrectomy, simple nephrectomy, or nephroureterectomy, respectively. The mean operative time was 125 minutes (range 70–310 minutes). Intraoperative complications were recorded in eight cases (7.3%), including vascular injuries of the renal artery in two, and of the renal vein, inferior vena cava and right adrenal vein in one case each. Injury of the large bowel and splenic hylus was recorded in one case and malfunction of the vascular endoGIA stapler leading to severe bleeding in one case. Nine cases were converted to open surgery (8.2%), four of them urgently due to intraoperative complications, while in another five cases conversions were elective following poor progression of the laparoscopic procedure. Comparison of the complication rate at follow-up between the initial 50 and the last 60 patients revealed no change. The conversion rate dropped significantly along the learning curve with 7 cases converted among the initial 50 patients, versus 2 in the last 60. There was no perioperative mortality. In two cases we recorded major postoperative complications, including pneumothorax treated by insertion of a thoracic drain and incarcerated inguinal hernia treated by surgery, while minor complications were seen in five patients. Histologic examination showed renal cell carcinoma pT1-T3a in 62 patients, oncocytoma in 5, transitional cell carcinoma T1G2-T3G3N1 in 10, renal sarcoma in 1, metastasis from lung tumor in 1, and end-stage kidney in the remainder. Negative margins were obtained in all cases.

Conclusions: Laparoscopic nephrectomy may be currently considered a routine, safe and effective procedure associated with minimal morbidity. The conversion rate seemed to drop significantly after 50 cases. In view of the inherent benefits for patients, in terms of reduced pain level, faster recovery and improved cosmetic results, the laparoscopic approach has become the standard approach for nephrectomy in our institution. 

June 2005
J. Ben Chaim, P.M. Livne, J. Binyamini, B. Hardak, D. Ben-Meir and Y. Mor
 Background: In Israel, virtually all children undergo circumcision in the neonatal period. Traditionally, it is commonly performed by a “Mohel” (ritual circumciser) but lately there is an increasing tendency among the educated secular population to prefer a medical procedure performed by a physician and with local anesthetic injection.

Objectives: To evaluate the outcome of this procedure and to compare the complication rate following circumcisions performed by ritual circumcisers and by physicians.

Methods: In 2001, of the 19,478 males born in four major medical centers in Israel 66 had circumcision-related complications. All the children were circumcised in non‑medical settings within the community. The patients were medically evaluated either urgently due to immediate complications or electively in outpatient clinics later on. Upon the initial assessment a detailed questionnaire was filled to obtain data regarding the procedure, the performer and the subsequent complications.

Results: All the circumcisions were performed during the early neonatal life, usually on day 8 of life (according to Jewish law). In 55 cases (83%) it was part of a ritual ceremony conducted by a ritual circumciser (Mohel), while in 11 babies (17%) physicians were involved. Acute bleeding after circumcision was encountered in 16 cases (24%), which required suturing in 8. In addition, we found two cases of wound infection and one case of partial amputation of glans penis in which the circumcision was performed by a ritual circumciser. Among the late complications, the most common was excess of skin in 38 cases (57%); 5 children (7.5%) had penile torsion and 4 children (6%) had shortages of skin, phimosis and inclusion cyst. The overall estimated complication rate of circumcision was 0.34%.

Conclusions: Complications of circumcision are rare in Israel and in most cases are mild and correctable. There appears to be no significant difference in the type of complications between medical and ritual circumcisions.

May 2005
N. Bitterman and I. Shalev
 Background: In light of changes in the medical profession, the different requirements placed on physicians and the evolving needs of the healthcare system, the need arose to examine the medical education curriculum in Israel. This survey, conducted by the Samuel Neaman Institute for Science and Technology summarizes 20 years of medical education in Israel's four medical schools, as the first stage in mapping the existing state of medical education in Israel and providing a basis for decision-making on future medical education programs.

Objectives: To characterize the academic background of graduates, evaluate their attitudes towards current and alternative medical education programs, and examine subgroups among graduates according to gender, medical school, high school education, etc.

Methods: The survey included graduates from all four Israeli medical schools who graduated between the years 1981 and 2000 in a sample of 1:3. A questionnaire and stamped return envelope were sent to every third graduate; the questionnaire included open and quantitative questions graded on a scale of 1 to 5. The data were processed for the entire graduate population and further analyzed according to subgroups such as medical schools, gender, high school education, etc.

Results: The response rate was 41.3%. The survey provided a demographic profile of graduates over a 20 year period, their previous educational and academic background, additional academic degrees achieved, satisfaction, and suggestions for future medical education programs.

Conclusions: The profile of the medical graduates in Israel is mostly homogenous in terms of demographics, with small differences among the four medical schools. In line with recommendations of the graduates, and as an expression of the changing requirements in the healthcare system and the medical profession, the medical schools should consider alternative medical education programs such as a bachelor’s degree in life sciences followed by MD studies, or education programs that combine medicine with disciplines such as law, engineering, computer science, etc.

March 2005
J. Cohen, D. Starobin, G. Papirov, M. Shapiro, E. Grozovsky, M.R. Kramer and P. Singer
Background: While increasing numbers of patients require prolonged mechanical ventilation, resources for weaning are either limited (ICU beds) or inadequate (general wards).

Objectives: To report on our initial experience over a 7 month period with an eight-bed mechanical ventilation weaning unit.

Methods: Sixty-nine patients requiring MV[1] for >10 days were admitted to the unit (nurse:patient ratio 1:4). Data collected included reason for MV, duration of hospital stay, and MVWU[2] course. Outcome results (successful weaning and mortality) were compared to those in historic controls (patients ventilated in the general wards over a 4 month period prior to the MVWU; n = 100).

Results: The mean age of the patients was 68 ± 16.6 years and hospital stay prior to MVWU admission 28.6 ± 24.2 days (range 10–72). The main reasons for MV included acute exacerbation of chronic obstructive pulmonary disease (31%) and recent pneumonia (28%). Mean MVWU stay was 13.5 ± 15.7 days (range 1–72 days). Thirty-four patients (49%) underwent tracheostomy. Fourteen patients required admission to the ICU[3] due to deterioration in their status. Twenty-nine patients (42%) were successfully weaned and discharged to the wards. A further 20 patients were transferred to the chronic ventilation unit of a regional geriatric rehabilitation hospital, where 5 were subsequently weaned and 15 required prolonged ventilation. Compared to controls (matched for age and reason for mechanical ventilation), more MVWU patients underwent successful weaning (49% vs. 12%, P < 0.001) and their mortality rate (n = 12) was significantly lower (17% vs. 88%, P < 0.001).

Conclusion: The higher level of care possible in a MVWU may result in a significantly improved rate of weaning and lower mortality. The assessment of long-term outcome in patients discharged to pulmonary rehabilitation centers requires further investigation.

______________

[1] MV = mechanical ventilation

[2] MVWU = mechanical ventilation weaning unit

[3] ICU = intensive care unit

February 2005
M.S. Shapiro, Z. Abrams and N. Lieberman

Background: Repaglinide, a new insulin secretagogue, is purported to be as effective as sulphonylurea but is less hypoglycemic-prone.

Objectives: To assess the efficacy of repaglinide and its proclivity for hypoglycemia in a post-marketing study.

Methods: The study group comprised 688 patients, aged 26–95 years, clinically diagnosed with non-insulin-dependent type 2 diabetes. The patients were divided into three groups based on previous therapy: a) sulphonylurea-treated (group 1, n=132); b) metformin with or without sulphonylurea where sulphonylurea was replaced with repaglinide. (group 2, n=302); and c) lifestyle modification alone (drug-naïve) (group 3, n=254). At initiation of the study, all patients were transferred from their current treatment to repaglinide. Only patients in group 2, with combined sulphonylurea plus metformin, continued with metformin plus repaglinide. Fasting blood sugar, hemoglobin A1c and weight were measured at study entry and 4–8 weeks following repaglinide therapy. A questionnaire documented the number of meals daily and the presence of eating from fear of hypoglycemia.

Results: The fasting blood sugar level of the entire cohort dropped from 191 ± 2.4 to 155 ± 2.0 mg/dl (P < 0.0001); HbA1c from 8.8 ± 0.1 to 7.7 ± 0.1% (P < 0.0001). The drop of HbA1c in groups 1, 2 and 3 respectively were: 1.04 ± 0.22% (P < 0.0001), 1.14 ± 0.24% (P < 0.0001), and 1.51 ± 0.31% (P = 0.0137). Weight dropped from 81 ± 0.7 to 80.2 ± 0.7 kg (P < 0.0001), and eating from fear of hypoglycemia from 157 to 97 (P < 0.001). The daily number of meals decreased from 2.9 ± 0.4 to 2.4 ± 0.4 (P < 0.001). No serious adverse reactions occurred during the study.

Conclusions: Repaglinide is an effective oral hypoglycemic agent taken either as monotherapy or combination therapy. There is less eating to avoid hypoglycemia, fewer meals consumed, and weight loss.
 

M.S. Shapiro, Z. Abrams and N. Lieberman

Background: Repaglinide, a new insulin secretagogue, is purported to be as effective as sulphonylurea but is less hypoglycemic-prone.

Objectives: To assess the efficacy of repaglinide and its proclivity for hypoglycemia in a post-marketing study.

Methods: The study group comprised 688 patients, aged 26–95 years, clinically diagnosed with non-insulin-dependent type 2 diabetes. The patients were divided into three groups based on previous therapy: a) sulphonylurea-treated (group 1, n=132); b) metformin with or without sulphonylurea where sulphonylurea was replaced with repaglinide. (group 2, n=302); and c) lifestyle modification alone (drug-naïve) (group 3, n=254). At initiation of the study, all patients were transferred from their current treatment to repaglinide. Only patients in group 2, with combined sulphonylurea plus metformin, continued with metformin plus repaglinide. Fasting blood sugar, hemoglobin A1c and weight were measured at study entry and 4–8 weeks following repaglinide therapy. A questionnaire documented the number of meals daily and the presence of eating from fear of hypoglycemia.

Results: The fasting blood sugar level of the entire cohort dropped from 191 ± 2.4 to 155 ± 2.0 mg/dl (P < 0.0001); HbA1c from 8.8 ± 0.1 to 7.7 ± 0.1% (P < 0.0001). The drop of HbA1c in groups 1, 2 and 3 respectively were: 1.04 ± 0.22% (P < 0.0001), 1.14 ± 0.24% (P < 0.0001), and 1.51 ± 0.31% (P = 0.0137). Weight dropped from 81 ± 0.7 to 80.2 ± 0.7 kg (P < 0.0001), and eating from fear of hypoglycemia from 157 to 97 (P < 0.001). The daily number of meals decreased from 2.9 ± 0.4 to 2.4 ± 0.4 (P < 0.001). No serious adverse reactions occurred during the study.

Conclusions: Repaglinide is an effective oral hypoglycemic agent taken either as monotherapy or combination therapy. There is less eating to avoid hypoglycemia, fewer meals consumed, and weight loss.

 
 

January 2005
N. Notzer, H. Abramovitch, R. Dado-Harari, R. Abramovitz and A. Rudnick

Background: Many medical school curricula include training for ethical considerations, legal comprehension, implementation of patients' rights, awareness of cultural differences and communication skills (ELCE).

Objectives: To explore medical students' perceptions of their ELCE training during the clinical phase as well as the relationship between humanistic practice skills' experiences and the quality of clinical training.

Methods: A cross-sectional survey was carried out in two cohorts during their clinical year period at Tel Aviv University's Sackler Faculty of Medicine at the end of their internal medicine and surgery clerkships in the 2002 academic year. The research tool was an 18 item Likert-type questionnaire (ELCEQ), based on the literature of biomedical ethics, legal aspects and behavior of practice skills. The content validation of the questionnaire was established by consulting experts among the school's faculty. It was circulated among the students by representatives of the Unit of Medical Education.

Results: The response rate was 88%. Students reported only a few opportunities for gaining experience in humanistic practice skills. A weak correlation was found between students' assessment of the quality of clinical training and their experiences in humanistic practice skills.

Conclusions: A wider and more relevant range of active experiences in humanistic practice skills should be available to students during the clerkships. Correspondingly, there is a need for the clinical faculty to find innovative ways to internalize their task as role models and ensure that students acquire and are able to practice those skills.
 

December 2004
R. Ness-Abramof, D. Nabriski and C.M. Apovian

The prevalence of obesity worldwide has risen sharply during the last four decades. The etiology of obesity is complex and includes a host of genetic influences in addition to the overconsumption of energy coupled with a sedentary lifestyle. Obesity is known to cause or exacerbate many co-morbid conditions such as diabetes, hypertension, dyslipidemia, coronary heart disease, stroke, certain cancers, arthritis and obstructive sleep apnea. Modest weight losses of 5–10% of actual weight are related to significant improvements in co-morbid conditions, but unfortunately the rate of recidivism with short-term therapy for obesity is high. The recent recognition of obesity as a chronic disease that should be treated with long-term programs and possibly with polypharmacy, and the alarming increase in its prevalence, have prompted extensive research and the development of new pharmacotherapy.

November 2004
O. Lev-Ran, D. Pevni, N. Nesher, R. Sharony, Y. Paz, A. Kramer, R. Mohr and G. Uretzky

Background: Advances in surgical techniques and retractor-stabilizer devices allowing access to all coronary segments have resulted in increased interest in off-pump coronary artery bypass. The residual motion in the anastomotic site and potential hemodynamic derangements, however, render this operation technically more demanding.

Objectives: To evaluate the OPCAB[1] experience in a single Israeli center.

Methods: Between 2000 and 2003 in our institution, 1,000 patients underwent off-pump operations. Patients were grouped by the type of procedure, i.e., minimally invasive direct coronary artery bypass or mid-sternotomy OPCAB.

Results: One hundred MIDCAB[2] operations were performed. Of the 900 OPCAB, 767 patients received multiple grafts with an average of 2.6 ± 0.6 grafts per patient (range 2–4) and the remaining patients underwent single grafting during hybrid or emergency procedures. In the multiple-graft OPCAB group, complete revascularization was achieved in 96%. Multiple arterial conduits were used in 76% of the patients, and total arterial revascularization without aortic manipulation, using T-graft (35%) or in situ configurations, was performed in 61%. The respective rates for early mortality, myocardial infarction and stroke in the MIDCAB were 1%, 0% and 2%, and 2%, 1.3% and 0.9% in the multiple-vessel OPCAB groups. Multivariate analysis identified renal dysfunction (odds ratio 11.5, confidence interval 3.02–43.8; P < 0.0001) and emergency operation (OR[3] 8.74, CL[4] 1.99–38.3; P = 0.004) as predictors of mortality. The proportion of off-pump procedures increased from 9% prior to the study period to 59%.

Conclusions: The use of OPCAB does not compromise the ability to achieve complete myocardial revascularization. Our procedure of choice is OPCAB using arterial conduits, preferably the 'no-touch' aorta technique.






[1] OPCAB = off-pump coronary artery bypass

[2] MIDCAB = minimally invasive direct coronary artery bypass

[3] OR = odds ratio

[4] CI = confidence interval


D. Silverberg, A.S. Paramesh, S. Roayaie and M.E. Schwartz
October 2004
Y. Mor, I. Leibovitch, N. Sherr-Lurie, J. Golomb, P. Jonas and J. Ramon
September 2004
I. Dudkiewicz, A. Oran, M. Salai, R. Palti and M. Pritsch

Background: Adhesive capsulitis, also termed “frozen shoulder,” is controversial by definition and diagnostic criteria that are not sufficiently understood. The clinical course of this condition is considered as self-limiting and is divided into three clinical phases. Several treatment methods for adhesive capsulitis have been reported in the literature, none of which has proven superior to others.

Objectives: To evaluate the long-term follow-up of patients with idiopathic adhesive capsulitis who were treated conservatively.

Methods: We conducted a long-term follow-up (range 5.5–16 years, mean 9.2 years) of 54 patients suffering from idiopathic adhesive capsulitis. All patients were treated with physical therapy and non-steroidal anti-inflammatory drugs.

Results: An increased statistically significant improvement (P < 0.00001) was found between the first and last visits to the polyclinic in all measured movement directions: elevation and external and internal rotation.

Conclusions: Conservative treatment (physical therapy and NSAIDs[1]) is a good long-term treatment regimen for idiopathic adhesive capsulitis.






[1] NSAIDs = non-steroidal anti-inflammatory drugs


O. Efrati, D. Modan-Moses, A. Barak, Y. Boujanover, A. Augarten, A. Szeinberg, I. Levy and Y. Yahav

Background: Pulmonary disease is the most frequent cause of morbidity and mortality in cystc fibrosis patients. New techniques such as non-invasive positive pressure ventilation have resulted in prolongation of life expectancy in CF[1] patients with end-stage lung disease.

Objectives: To determine the role of NIPPV[2] in CF patients awaiting lung transplantation.

Methods: Between 1996 and 2001 nine CF patients (5 females) with end-stage lung disease were treated with bi-level positive airway pressure ventilation in the "spontaneous" mode.

Results: The patients' mean age at initiation of BiPAP[3] was 15 years (range 13–40 years) and the mean duration of BiPAP usage was 8 months (range 3–16 months). Four patients underwent successful lung transplantation, three patients died while awaiting transplantation, and the remaining two are still on NIPPV while waiting for transplantation. Patients' body mass index increased significantly (P < 0.05) during BiPAP therapy (from 16.1 to 17.2 kg/m2). Blood pH, paCO2, and bicarbonate improved significantly (from 7.31 to 7.38, 90.8 to 67.2 mmHg, and 48.9 to 40.3 mEq/L, respectively). Pulmonary function tests were not affected by BiPAP usage. The patients experienced a significant alleviation in morning headaches and improvement in quality of sleep (P < 0.003). There were no major complications during BiPAP usage.

Conclusions: We demonstrated that long-term NIPPV can stabilize and improve physiologic parameters such as ventilation, arterial blood gases and body mass index, as well as subjective symptoms such as sleep pattern, daily activity level, and morning headaches in CF patients with end-stage lung disease. Further prospectively controlled studies are needed to evaluate the potential of BiPAP therapy and its influence on morbidity and mortality in the post-lung transplantation period.






[1] CF = cystic fibrosis

[2] NIPPV = non-invasive positive pressure ventilation

[3] BiPAP = bi-level positive airway pressure ventilation


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