תוצאת חיפוש

Ambulatory Oral Procedures on Low-Dose Aspirin

Ronen Gaspar, Leon Ardekian, Benyamin Brenner, Micha Peled, Dov Laufer

Dept. of Oral and Maxillofacial Surgery, and Thrombosis and Hemostasis Unit, Rambam Medical Center, Haifa

Discontinuation of long-term, low-dose aspirin prior to ambulatory oral surgical procedures was assessed in a blind, controlled prospective study. 50 patients on low-dose aspirin who needed dental extractions, periodontal surgery, or other ambulatory oral surgery were randomly divided into test and control groups. The control patients stopped taking aspirin a week before operation, but in the test group aspirin was continued. Before, during and after surgery bleeding time was tested. Although bleeding time was significantly longer when aspirin was continued, in both groups it was within normal limits. Intraoperative hemorrhage was more frequent in those taking aspirin. Hemostasis control posed no problem and there were no postoperative complications in either group. It is concluded that discontinuing low-dose aspirin prior to elective oral surgery is not justified.

Radiologic Appearance of "Falling Gallstones" during Laparoscopic Cholecystectomy

E. Alkalay, D. Yaffe, Z. Spindel

Eyn Vered Clinic and Depts. of Radiology and Surgery, Sapir Medical Center, Kfar Saba and Sackler Faculty of Medicine, Tel Aviv University

Laparoscopic cholecystectomy is the "gold standard" in treating cholelithiasis. Stones are frequently lost in the peritoneal cavity during the procedure, but "missing stones" have been regarded as insignificant. However, there is accumulating evidence that untreated "lost" stones may cause complications even years after operation.

We present a 65-year-old woman who presented with vague complaints, anemia and an elevated ESR. CT scan showed an infiltrating process in extra-abdominal muscles compatible with sarcoma. At operation, 2.5 years after previous laparoscopic cholecystectomy, an abscess was found which contained biliary stones. Because of their small size they were not visible on CT scan. We discuss the possible ways of handling "falling stones."

Comparison between Every-Day and Every-3-Days Fluoxetine in Young, Moderately Depressed Out-Patients

A. Shiber, H. Reuveni, A. Elhayany, I.Z. Ben-Zion

Psychiatric Dept., Psychiatric Division, Soroka Medical Center and Ben-Gurion University of the Negev, Beer Sheba; and Medical Division for Drug Utilization, Kupat Holim Klalit (Sick Fund)

Fluoxetine is now a well-known and often-used specific serotonin reuptake inhibitor (SSRI) and antidepressant. It has a very long active half- life, from 2-16 days. Our hypothesis was that sufficient therapeutic effectiveness would be achieved by prescribing the drug less frequently than once a day.

To establish whether there is a difference between fluoxetine given daily or every 3 days, we assigned 25 outpatients with mild to moderate, acute major depressions (DSM-IV) to receive fluoxetine (20 mg), either each day or every 3 days. The study was open-labelled, using for assessment the HAM-D, GHQ-28 side-effect checklist and clinical judgment questionnaires. Follow-up lasted 6 months.

Results indicated no differences in the clinical outcomes, except for slightly fewer side-effects in the study group. Although the open label design limits drawing definitive conclusions, our preliminary results provide more information, and support our hypothesis that low-dosage fluoxetine is beneficial. However, more comprehensive, double-blind studies are necessary to confirm our preliminary results.

Extensive Liver Resection: a Series of 72 Cases

Moshe Hashmonai, Doron Kopelman, Ahmed Assalia, Yoram Klein, Hani Bahus, Alex Beny, Yaakov Baruch

Depts. of Surgery B, Oncology and Unit for Liver Diseases, Rambam Medical Center and Technion Faculty of Medicine, Haifa

Partial liver resection is the treatment of choice for various liver diseases, including primary and secondary (metastatic) malignancies, benign tumors, cysts, abscesses, trauma, etc. Improved knowledge of hepatic anatomy and physiology, improved diagnostic techniques and more developed peri-operative treatment have reduced postoperative morbidity and mortality to acceptable levels.

We present a series of 72 liver resections, the majority of which were liver lobectomies or more extensive procedures performed during 1982-1997. The percentage of postoperative complications, which ranged from 1.3% to 19.4%, and mortality (8.3%; 6/72) are comparable to those of other large series in the world literature. We believe that better appreciation of the surgical potential of Israel by our medical community will improve our therapeutic approach to various liver diseases.

Autonomic Dysregulation in Post-Traumatic Stress Disorder: Power Spectral Analysis of Heart Rate Variability

Hagit Cohen, Uri Loewenthal, Mike A. Matar, Hanoch Miodownik, Zeev Kaplan, Yair Cassuto, Moshe Kotler

Mental Health Center, Israel Ministry of Health; Anxiety and Stress Research Unit, Faculty of Health Sciences; Dept. of Life-Sciences, Ben-Gurion University of the Negev, Beer Sheba

Spectral analysis of heart rate variability (HRV) has been shown to be a reliable noninvasive test for quantitative assessment of cardiovascular autonomic regulatory response, providing a dynamic map of sympathetic and parasympathetic interaction. In a prior study exploring the state of hyperarousal that characterizes the post traumatic stress disorder (PTSD) syndrome, we presented standardized heart rate analyses in 9 patients at rest, which demonstrated clear-cut evidence of a baseline autonomic hyperarousal state.

To examine the dynamics of this hyperarousal state, standardized heart rate analysis was carried out in 9 PTSD patients, compared to a matched control group of 9 normal volunteers. 20-minute ECG recordings in response to a trauma-related cue, as opposed to the resting state, were analyzed. The patients were asked to recount the presumed triggering traumatic event, and the control subjects recounted a significant stressful negative life event.

Whereas the control subjects demonstrated significant autonomic responses to the stressogenic stimulus of recounting major stressful experiences, the patients demonstrated almost no autonomic response to the recounting of the triggering stressful event. The patients demonstrated a degree of autonomic dysregulation at rest comparable to that seen in the control subjects' reaction to the stress model.

The lack of response to the stress model applied in the study appears to imply that PTSD patients experience so great a degree of autonomic hyperactivation at rest, that they are unable to marshal a further stress response to the recounting of the triggering trauma, as compared to control subjects. A subsequent study of the effect of medication on these parameters showed that they are normalized by use of selective serotonin re-uptake inhibitors (SSRI's).

Neither the clinical implications of these findings, nor their physiological mechanisms are clear at present. We presume that they reflect a central effect, as the peripheral automatic effects of SSRI's are relatively negligible.

Transcatheter Closure of Atrial Septal Defect

Benjamin Zeevi, Michael Berant, Rami Fogelman, Galit Bar-Mor, Leonard Blieden

Cardiology Institute, Schneider Children's Medical Center, Petah Tikva and Sackler School of Medicine, Tel Aviv University

Isolated secundum atrial septal defect is one of the most common congenital heart defects. Surgical closure is the treatment of choice but is associated with a chest scar, some morbidity and a relatively long recovery and the use of cardiopulmonary bypass. Transcatheter closure of secundum atrial septal defect is therefor an attractive approach.

3 children, aged 5-10 years, underwent successful transcatheter closure of moderate to large central atrial septal defects with the Cardioseal device. The procedures were performed under x-ray and transesophageal echocardiographic guidance.

Our initial experience, and that of others, indicates that transcatheter occlusion of secundum atrial septal defects is safe and effective and can be an appropriate alternative in approximately 60% of patients.

Transcatheter Closure of Atrial Septal Defects: Initial Clinical Applications

Shahar Zimand, Einat Birk, Mira Frand, Patricia Benjamin, Julius Hegesh

Dept. of Pediatric Cardiology, Sheba Medical Center, Tel Hashomer and Schneider Medical Center, Petah Tikva

The incidence of congenital heart defects is 0.8% of live-born infants. Of these 13% are ostium secundum atrial septal defects (ASD) which can be successfully repaired by open heart surgery with less than 1% mortality. However, morbidity associated with cardiac surgery is universal. Transcatheter closure of ASDs was introduced 2 decades ago to decrease surgical complications, hospital stay and cost. Few devices have undergone clinical trials but all of them have been associated with instances of failure and complications. The most important mechanism for acute failure was selection of cases with too large a defect or selection of a defective device. In the past decade great progress has been made with the aid of transesophageal echocardiography (TEE) and modifications of the device. We present our experience in our first 5 patients. They ranged in age from 4 to 27 years; the ASD diameter was 11-15 mm and the device diameter was 17-33 mm. All transcatheter closures were performed on the same day without any complications, and all patients were discharged home after 2 days of hospitalization. We conclude that transcatheter occlusion of ASDs up to 15 mm is feasible, relatively safe and effective. This transcatheter method appears to be a viable alternative to surgery for some patients with secundum atrial septal defects.

Follicle-Stimulating Hormone in Azoospermia in Prediction of Spermatogenic Patterns

David B. Weiss, Shoshana Gottschalk-Sabag, Zvi Zukerman, Elchanan Bar-On, Zvi Kahana

Kupat Holim Me'uhedet; and Dept. of Pathology and Cytology and Male Infertility Unit, Shaare Zedek Medical Center, Jerusalem; Andrology Unit, Rabin Medical Center (Beilinson Campus), Petah Tikva; and Paper Research Consultant Institute, Jerusalem

Follicle-stimulating hormone (FSH) is considered to be the most important plasma hormone correlated with spermatogenesis. Elevated FSH plasma levels were shown to be associated with complete damage to testicular seminiferous tubule germinal epithelium. Recently, there have been conflicting reports with regard to the value of FSH plasma levels in predicting seminiferous tubule histology in the azoospermic patient and hence, as a guide for therapy in assisted reproduction using testicular sperm retrieval. The aim of this study was to evaluate whether FSH plasma levels can predict spermatogenic pattern in the testes of the azoospermic infertile patient. 69 infertile men with non-obstructive azoospermia and 18 with very severe oligospermia were studied. In all, plasma levels of testosterone, free testosterone, prolactin, luteinizing hormone and follicle-stimulating hormone were measured by enzyme immunoassay. In the azoospermic patients the seminiferous tubule spermatogenic pattern was determined in testicular aspirates obtained by multiple fine needle aspiration and categorized according to the most mature spermatogenic cell type in the aspirates: Sertoli cells only, spermatogenic maturation arrest or full spermatogenesis. There were no significant differences in plasma levels of any hormone measured except in very severely oligospermic and azoospermic patients. Both normal and elevated levels were detected in all, regardless of seminiferous tubule cytological pattern or plasma FSH in azoospermic patients. It is concluded that plasma levels of FSH can not be used as a predictive parameter, neither for the presence of spermatozoa nor for any other seminiferous tubule cytological pattern in azoospermic infertile men. They cannot serve as guides for selection of azoospermic men for trials of testicular sperm retrieval in assisted reproduction.

Combined Treatment of Hepatic Tumors by Cryosurgery and Resection

Doron Kopelman, Alexander Beny, Ahmed Assalia, Diana Gaitini, Yoram Klein, Moshe Hashmonai

Depts. of Surgery B, Oncology and Radiology, Rambam Medical Center and Technion Faculty of Medicine, Haifa

Cryosurgery is an old technique which is being used for hepatic tumors as an adjuvant to hepatic resection. We recently treated 7 patients with multiple malignant liver tumors, 5 of whom had colorectal metastases, 1 carcinoid metastases, and 1 multiple hepatic lesions of hepatocellular carcinoma. 6 underwent combined liver resection and cryoablation of lesions in the remaining liver. In the 7th patient, only cryoablation was performed because hepatic resection was rejected and there was an extrahepatic metastasis. The advantages of this treatment are removal or destruction of all liver lesions found by any method, including intraoperative ultrasound examination, maximal preservation of normal liver parenchyma and that it is curative in patients inoperable by standard criteria.

Living-Related Liver Transplantation

N. Bar-Nathan, Z. Shapira, E. Shaharabani, A. Yussim, Y. Ben-Ari, T. Sheinfeld, I. Zehavi, R. Shapira, G. Dinari, Z. Ben-Ari, R. Tur-Kaspa, E. Mor

Dept. of Transplantation and Liver Institute, Rabin Medical Center (Beilinson Campus), and Pediatric Intensive Care and Pediatric Gastroenterology Units, Schneider Children's Medical Center, Petah Tikva

Our experience with living-related liver transplantation is described. In 2 boys and 1 girl, aged 4-4.5 years with acute, fulminating hepatitis A, the presence of very severe jaundice (bilirubin levels > 18 mg%) associated with severe coagulopathy (INR>10) and encephalopathy indicated the need for urgent liver transplantation. In all 3 cases the left lateral hepatic segment of a matched blood type parent was transplanted. None of the donors suffered a serious complication postoperatively and all returned to full activity in 6-16 weeks. The post-transplantation course was uneventful in 1 child, but in the other 2 there was hepatic arterial thrombosis in 1 at 1 day and in the other at 8 days post-transplantation. Early detection of arterial thrombosis by Doppler sonography permitted salvage of the 2 hepatic grafts after thrombectomy and re-anastomosis. In 1 of these 2 children an anastomotic biliary stricture was found 2 months after transplantation. It was corrected at surgery and a percutaneous stent was inserted. All 3 children are alive with normal graft function at 2, 7 and 8 months post-transplantation, respectively. This initial experience indicates that living-related liver transplantation is feasible in Israel. The technique might help to solve our severe organ shortage for children awaiting liver transplantation.

Skeletonized Internal Mammary Arteries for Coronary Bypass Grafting

Jacob Gurevitch, Yosef Paz, Menachem Matsa, Amir Kramer, Dimitri Pevni, Oren Lev-Ran, H. Locker, Raphael Mohr

Dept. of Thoracic and Cardiovascular Surgery, Sourasky-Tel Aviv Medical Center

The skeletonized internal mammary artery (IMA) is longer, and its immediate spontaneous blood flow is greater than that of the pedicled IMA, thus providing increased versatility for complete, arterial myocardial revascularization without the use of saphenous vein grafts. From April 1996 to May 1997, 583 patients underwent coronary artery bypass grafting here and in 415 (71%) complete arterial revascularization was achieved using bilateral skeletonized IMA. The right gastroepiploic artery was used in 57 (13%); there were 329 males (79%) and 86 women (21%); average age was 64 (30-87) and 175 (36%) were older than 70; 131 (32%) were diabetics. Average number of grafts was 3.2 (range 2-6 grafts). At 30 days, 5 (1.2%) had died and there had been 6 perioperative infarcts (1.4%), 5 CVA's (1.2%), and 6 had sternal wound infections (1.4%). Up to 1-12 months of follow-up was achieved in 409 (99%). Late mortality was 1.4% (of which 3 were noncardiac). 394 (97%) were angina-free at latest follow-up. We conclude that arterial revascularization using bilateral skeletonized IMA is safe, as postoperative morbidity and mortality are low, even in old and diabetic patients.

Clinical Characteristics of those who Leave the Emergency Room Against Advice

A. Carmel, H. Amital, Y. Shemer, A. Sahar

Emergency Dept. and Dept. of Medicine B, Gertner Institute for Medical Service Research, Chaim Sheba Medical Center, Tel Hashomer and Sackler Faculty of Medicine, Tel Aviv University

The object of this study was to characterize those who leave the emergency department agmedical advice and to examine the short-term consequences. The study was conducted retrospectively 1992 and prospectively during May-August 1993 by telephone interviews. About 0.5% of all the patients who applied to the emergency department left against medical advice. Their main characteristic was that they were mostly young, single men. A wide range of complaints had brought them to the emergency department, very similar to that of the control group, but with a higher tendency to abuse drugs and alcohol. Most of those who left against medical advice had less severe disease than the controls. However 10% of them had to be hospitalized within the subsequent 2 weeks, in comparison with 4% of the controls. This study suggests that improving the efficiency of the emergency department will decrease the number leaving against advice.

Propofol Anesthesia for Craniotomy in Patients who are Awake

Ron Ben Abraham, Noah Lieberman, Zvi Ram, Sylvia Klempner, Azriel Perel

Depts. of Anesthesia and Intensive Care and of Neurosurgery, Chaim Sheba Medical Center, Tel Hashomer and Sackler School of Medicine, Tel Aviv University

During craniotomy, the patient's cooperation is needed during procedures in which continuous neurological examination and mapping of crucial regions close to the area to be resected area are required. We report our experience in 9 patients who underwent such procedures under intravenous propofol as the main sedating agent. This short-acting hypnotic was administered prior to and during the painful stages of the procedure. Patients were fully asleep when the skull was opened and the dural flap raised or excised. During the rest of the operation patients were lightly sedated but remained responsive and cooperative. This enabled precise intra-operative mapping of the brain and surgery-related neurological deficits were avoided. Respiratory depression or hemodynamic compromise were not encountered. All patients were comfortable during the operation and there were no additional neurological deficits after operation. We believe that propofol should be the main sedating agent used for these procedures.

Does Testicular Volume Reflect Spermatogenic Pattern in Azoospermia?

David B. Weiss, Elchanan Bar-On, Shoshana Gottschalk-Sabag, Zvi Zukerman

Kupat Holim Mehuhedet and Male Infertility and Cytology Units, Shaare Zedek Medical Center, Jerusalem; and Andrology Unit, Rabin Medical Center (Beilinson Campus) Petah Tikva

The aim of this study was to determine whether testicular volume can serve to predict patterns of spermatogenesis in azoospermia. In 27 tests of azoospermic infertile men, cytological specimens from several sites from each testis were obtained by fine needle aspiration. Testes were classified according to the most mature spermatogenic cell type. Classifications were testes with spermatozoa, with arrested spermatogenic development, and with only Sertoli cells. Prior to fine needle aspiration the 3 dimensions of each testis were determined ultrasonically and its volume calculated. Mean testicular volume (±‏SD) was 7.71 (±5.95) ml for testes with spermatozoa and 7.55 (±2.35) and 7.31 (±4.42) ml for testes with spermatogenic maturation arrest and with only Sertoli cells, respectively (differences not significant). It is concluded that testicular volume can not be used as a predictive parameter, neither for the presence of spermatozoa nor for the cytological pattern of the testes of azoospermic infertile men.

Diagnosis of Cerebral Embolism by Transesophageal Echocardiography

A. Mahagney, D. Sharif, B. Weller, E. Abineder, B. Sharf

Depts. of Neurology and Cardiology, Bnai Zion Hospital, Haifa

Cerebrovascular events have high mortality and morbidity, especially in the elderly. Ischemia is the main cause and 30% of the ischemic events are embolic and of cardiac origin. The clinical picture is not always typical of the type of stroke, but diagnosis of the mechanism of the event determines treatment. Transesophageal echocardiography (TEE) is a sensitive procedure more appropriate for diagnosing emboli of cardiac origin than transthoracic echocardiography (TTE). We therefor compared TEE and TTE in the determination of the source of emboli in 65 patients with ischemic stroke but without significant atherosclerotic changes in their carotid arteries, and compared these findings with those in 50 patients without stroke. 68% of the patients had potential sources of emboli according to TEE, compared to only 15% according to TTE. In the control group only 24% had potential sources of emboli by TEE. The findings were: clots in the left atrium, severe aortic atheroma, patent foramen ovale with paradoxical shunt, spontaneous echocardiography contrast, vegetations and mitral valve prolapse. The study showed that TEE is better than TTE in detecting the etiology of embolic stroke in those with normal carotid arteries, thus determining appropriate management.