תוצאת חיפוש

Malignant Nodular Hidradenoma (Sweat Gland Tumor)

Anat Engel, Yaron Bar-Dayan, Santiago Engelberg, Yair Levi

Depts. of Medicine B, Pathology, and Disease Research Unit, Sheba Medical Center, Tel Hashomer and Sackler Faculty of Medicine, Tel Aviv University

Malignanhidradenoma is a very rare tumor that originates from sweat glands. We present a 61-year-old man with an ulcerated tumor in his right flank, 4 cm in diameter, that was excised with a wide free margin. Histopathologic study showed an ill-defined, epithelial neoformation, formed by lobules of clear polygonal cells in the deep dermis and subcutaneous tissue, diagnosed as malignant nodular hidradenoma.

1.5 years after excision there was enlargement of the right axillary and inguinal lymph nodes, which showed metastatic, adnexal neoplastic cells. Axillary resection and superficial dissection of the right inguinal nodes were performed. After 3 months the tumor had spread to other lymph nodes and acute obstructive renal failure required insertion of a pig-tail catheter into the right ureter. Radiotherapy was followed by chemo-therapy, but he died from end-stage metastatic disease in multi-organ failure.

Portal and Mesenteric Vein Thrombosis after Splenectomy for Idiopathic Thrombocytopenic Purpura

Eldad Silberstein, Alexander Smolikov, Itzhac Levi

Surgery B Dept. and Nathanzon Institute of Radiology, Soroka Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheba

Mesenteric and portal vein thrombosis are rare complications of splenectomy. Their presentation depends on the underlying disease. It is most frequent in lymphoproliferative disorders but extremely rare in trauma. We describe a 22-year-old man and a 49-year-old woman who underwent splenectomy for idiopathic thrombocytopenic purpura and developed mesenteric and portal vein thromboses. Both were treated successfully with anticoagulants for 3 months until the thrombi regressed, as shown by CT scan. During a year of follow-up they were asymptomatic.

Exhaustion of Motor Cortex after Head Injury Revealed by Trans-Cranial Magnetic Stimulation

M. Elron, G. Levi, M. Trovnick, J.F. Soustiel, H. Hafner, A. Chistyakov, M. Feinsod

Center for Treatment and Applied Research in Head Injury, Dept. of Neurosurgery, Rambam Medical Center and Rappaport Faculty of Medicine, The Technion, Haifa

We evaluated the pattern of motor evoked potentials elicited by single-pulse and slow-rate (1 Hz) repetitive, transcranial, magnetic stimulation (RTMS) in minor head injuries. The motor response to a single magnetic stimulus in patients with minor head injury was characterized by a significantly higher threshold than in healthy subjects. However, central and peripheral motor conduction was normal in all patients. A stable pattern of MEP throughout the RTMS session was the most prominent feature in the control group. A progressive decrease in MEP amplitude and irregular alternation of large and very small MEPs over the course of RTMS was observed in minor head injury. The higher threshold of the motor response and the abnormal patterns of MEP behavior revealed by RTMS may reflect impaired excitability and enhanced exhaustion of the motor cortex in patients with minor head injuries, which improve with time.

Operative Laparoscopy in Pregnancy

Eylon Lachman, Abraham Schienfeld, R. Boldes, Samuel Levin, Michael Burstein, Michael Stark

Depts. of Obstetrics and Gynecology, Misgav Ladach Hospital, Jerusalem

The development of laparoscopic surgery in gynecology and general surgery has greatly advanced over the past decade, and recently has been successfully performed in pregnancy. In the English literature we found that of the 518 cases reported (mean age 32 years) the most common was for cholecystectomy (45%), followed by operations on the adnexae (34%), appendectomy (15%) and others (6%). To these we add 3 cases of cholecystectomy and 1 of an adnexal tumor. Of all the reported cases, 33% were performed in the 1st trimester, 56% in the 2nd and 11% in the 3rd.

This review demonstrates a definite trend to laparoscopy in pregnancy. It appears to be safe when performed by experienced surgeons, but further studies addressing safety of laparoscopic surgery during pregnancy are needed to reach definitive conclusions.

Pulmonary Hypertension and Multi-Valvular Damage Caused by Anorectic Drugs

Serge E. Goldstein, Yair Levy, Yehuda Shoenfeld

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

Marked obesity is an independent risk factor for multisystem morbidity. The use of anorectic drugs is an aggressive strategy for weight reduction. It appears to be an easy way of dealing with the problem, because the patient needn't change his behavior. However, such treatment is not harmless. At the end of the 60's an outbreak of pulmonary hypertension was associated with the drug aminorex, and it was soon withdrawn from the market. 30 years later it became clear that new-generation anorectic drugs (fenfluramine, dexfenfluramine, phentermine), which were being used world-wide, lead to both pulmonary hypertension and valvular damage.

We describe a woman of 70 with both these complications which developed after prolonged anorectic therapy with a fenfluramine-phentermine combination.

Viagra, the First Oral Treatment for Impotence

Y. Assouline-Dayan, Y. Levi, Y. Shoenfeld

Medical Dept B, Chaim Sheba Medical Center and Sackler Faculty of Medicine, Tel Aviv University

Impotence, a common problem especially among older men, can now be treated with Viagra, This oral pill, unlike previous approved treatments mostly involving local injections, does not directly cause penile erection, but increases response to sexual stimulation. It acts by enhancing the relaxant effects of nitric acid on smooth muscle, and thus increases blood flow to certain areas of the penis, leading to erection. It has been evaluated in many randomized trials and in all was more successful in inducing erection than placebos. The most common side-effects include headache, flushing and indigestion, but there have also been reports of fatalities.

We describe a 75-year-old man who had an acute myocardial infraction in the past and who had maturity-onset diabetes and hypertension. In the week prior to admission he had a cardiac scan following a few weeks of exacerbation of anginal pain for which he had been taking nitrites. He took a Viagra pill without prescription or medical advice and 2 hours later, during intercourse with his wife, developed audible respiratory distress and lost consciousness. His wife started cardiac massage but not mouth-to-mouth breathing. The emergency team found ventricular fibrillation and gave 5 electrical shocks and amines and atropine. He remained unconscious, but his pulse returned and he was hospitalized. He then had several generalized convulsions treated with IV valium. 20 minutes after admission there was asystole and all attempts at resuscitation failed.

Cardiovascular status must be considered prior to prescribing Viagra, and the associated risk evaluated.

Acute Appendicitis during Pregnancy

Eldad Silberstein, Tali Silberstein, Gad Shaked, Miriam Katz, Moshe Mazor, Itzhac Levi

Dept. of Surgery C, Divisions of Obstetrics and Gynecology, Soroka Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheba

Acute appendicitis is the most common surgical problem in pregnancy, when it is difficult to diagnose early because of the physiological changes of pregnancy. We studied the problem in the Negev population and present the main issues in diagnosis and management. Between 1988-96, 26 women were operated on for acute appendicitis during pregnancy (1/3297 deliveries), 3 by laparoscopy. In 13 there was a histopathological confirmation of the diagnosis. Clinical diagnosis was more accurate in the first trimester of pregnancy than in the second or third (p=0.073). Premature delivery rate was higher in both confirmed and unconfirmed acute appendicitis than in other pregnancies (p<0.00001), but without significant differences between the 2 groups with appendicitis. Other indexes of maternal and perinatal morbidity did not differ either.

Importance of Internal Fixation for Talar Neck Fractures

Daniel Levin, Chaim Zinman

Orthopedic Dept. B, Rambam Medical Center and Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa

Fracture of the talus, which articulates with 4 other bones in the ankle and foot, must be properly diagnosed, classified and treated to avoid the common complications of post-traumatic osteoarthritis and avascular necrosis. Knowledge of blood supply and anatomy is imperative, since the surgical approach must not damage the few vascular structures that remain intact after the trauma. We present 5 cases of fractures at the neck of the talus. All underwent internal fixation, 1 after closed reduction and 4 after open reduction. In all the results were satisfactory, although 1 patient developed avascular necrosis of the talar body.

Benign Intracranial Hypertension following Minocyclin

A. Halevy, I. Offer, B. Garty

Pediatric Depts. A and B, Schneider Children's Hospital, Petah Tikva and Sackler School of Medicine, Tel Aviv University

A 15-year-old girl, who had been treated with minocyclin for acne for 2 months, was admitted for investigation of headache, nausea and papilledema. A space-occupying lesion was ruled out by computerized brain tomography. The diagnosis of benign intracranial pressure (pseudo-tumor cerebri) was made because of elevated cerebrospinal fluid pressure with normal biochemistry and cytology. Tetracyclines, especially minocyclin, commonly used for treating acne in adolescents, can cause benign intracranial pressure.

Use of Intranet in the Hospital Setting

David Bregman, Leon Levi

College of Administration, Tel Aviv and Rambam Medical Center, Haifa

In the Intranet system, the organization uses technologies developed and applied in the Internet network world-wide. Hospitals can use Internet technologies to make hospital information systems more efficient by improving use of existing systems and by adding additional possibilities. Furthermore, the hospital can improve its relations with its customers and also bring the organization additional customers. Intranet implementation can be divided into the areas of: communication, managing and distributing information, and application linkage. Implementation must be modular, gradual and planned according to economic, technological and organizational aspects of the hospitals. By the Intranet, organizations can achieve benefits that include: improving communication array, availability of data and information, using existing information systems and their applications, enhancing customer satisfaction and saving costs of manual application systems.

Necrotizing Soft Tissue Infection

E. Rath, I. Shelef, E. Avinoah, Y. Lichtman, O. Levy, D. Atar

Depts. of Orthopedics, Diagnostic Radiology and General Surgery C, Soroka Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheba

The dramatic course of necrotizing soft tissue infection represents a medical emergency, since it is limb - and life-threatening. Most necrotizing soft tissue infections are caused by mixed aerobic and anaerobic Gram-negative and Gram-positive organisms. Most case have been reported in immunocompromised hosts after penetrating trauma or surgery. We describe a unique series of cases of necrotizing soft tissue infection. The mainstay of treatment is early and daily debridement of devitalized tissue and broad-spectrum antibiotics. Hyperbaric oxygen therapy should be considered.

Islet Autoantibody Assays in Type I Diabetes can Replace ICA Test

Daniel Lazar, Naomi Weintrob, Natalia Abramov, Sara Assa, Konstantin Bloch, Regina Ofan, Hadassa Ben-Zaken, Pnina Vardi

Institute for Pediatric Endocrinology and Diabetes, Schneider Children's Medical Center, Petah Tikva and Felsenstein Medical Research Center, Tel Aviv University

Islet cell antibodies (ICA) continue to serve as the basis of the principal serological test for definition of active autoimmunity of beta-cells. Its disadvantages are the need for human pancreatic tissue and difficulty in obtaining quantitative results. In the past decade biochemically-defined beta-cell antigens were described, leading to the development of sensitive and specific autoantibody assays, to predict insulin-dependent diabetes mellitus (IDDM). We examined the value of combined biochemically-based serological assays, such as autoantibodies to insulin (IAA), glutamic acid decarboxylase (GADA) and ICA512 (ICA512A) to replace the traditional ICA assay.

Blood samples of 114 newly diagnosed IDDM patients, aged 12‏5 yrs (range 2 months - 29 years) were tested for ICA (indirect immunofluorescence), IAA, GADA and ICA512A (radiobinding assay). The latter 2 assays were performed using recombinant human [35S]-labeled antigen produced by in vitro transcription/translation. We found that fewer sera scored positive for ICA and/or IAA (80.7%, 92/114) than for 1 or more of IAA, GAD, or ICA512 (88.6%, 101/114). We conclude that combined testing for IAA, GAD and ICA512 can replace the traditional ICA/IAA test to predict IDDM and is helpful in the differential diagnosis of insulin-dependent and noninsulin-dependent diabetes.

Fine Needle Aspiration Biopsy of Mediastinal Masses Guided by Computed Tomography

M. Sklair-Levy, D. Shaham, I. Sherman, I. Bar-Ziv, I. Libson

Depts. of Radiology and Pathology, Hadassah-University Hospital, Jerusalem

Progress in diagnostic radiology and pathology during the past decade has changed the approach to diagnosis of mediastinal masses. Diagnosis by CT-guided needle biopsy (CTNB) has replaced open biopsy and mediastinoscopy. CTNB of mediastinal masses is accurate, reliable and safe. It is done under local anesthesia, in ambulatory patients and is tolerated well. Between July 1987 and April 1997 we performed 67 biopsies in 63 patients aged 6-86 years; 33 were women (average age 40.8 years) and 30 men (average age 38.3 years). 57 of 67 biopsies were core biopsies for histologic examination and 10 were cytologic biopsies. In this report we concentrate on the 57 core biopsies. 41 of the biopsies were diagnostic; in 3 of them no evidence of malignancy was found. In 38 of the biopsies a tumor, malignant or benign, or an inflammatory process was diagnosed. In 24 of the biopsies the diagnosis was lymphoma. In 16 there was not enough material for diagnosis. We repeated the biopsy in 4 of the latter due to high suspicion of malignancy and reached a diagnosis in all 4 of them. In 6 the diagnosis was reached only by operation. The biopsies were from all compartments of the mediastinum. There were no complications such as pneumothorax or bleeding, except for 1 case of mild hemoptysis. In conclusion, CTNB of mediastinal lesions is accurate, safe and relatively cheap. In 72% a diagnosis was reached in the first attempt and a second attempt raised the diagnostic rate to 79%. We believe that CTNB should be the first step in tissue diagnosis of mediastinal masses, including those with a high suspicion of lymphoma.

Effect of Alpha-Alpha Esterol on Plasma Cholesterol and Antioxidants

Y. Levy, E. Paster, G. Dankner, A. Ben-Amotz, J.G. Brook

Lipid Research Unit, Medical Dept. D, Rambam Medical Center; Rappaport Faculty of Medicine, The Technion; and Israel National Oceanographic Research Institute, Haifa

16 patients with hypercholesterolemia were treated with an extract of alpha-alpha leaves (esterol) while on a low-fat, low-cholesterol diet. Esterol is believed to inhibit the absorption of cholesterol and bile acids and may interfere with the absorption of essential nutrients. As oxidative modification of lipoproteins is required for the process of atherosclerosis, plasma antioxidant vitamins were followed. After 4 months of treatment, plasma cholesterol decreased by 10% from 282 to 250 mg/dl (p<0.001) and LDL cholesterol by 13%, from 203 to 177 mg/dl (p<0.001). Plasma antioxidant vitamins E, A and β-carotene were unchanged. Thus, esterol has a cholesterol-lowering effect but apparently does not lower fat-soluble, plasma antioxidant vitamins. Both cholesterol-lowering and plasma antioxidant vitamins are important for the primary prevention of coronary artery disease in hypercholesterolemia.

Aseptic Loosening of Joint Implants

Dror Fuchs, Chaim Zinman, Dina Lewinson

Orthopedic and Traumatology Dept. B, Rambam Medical Center; and Div. of Morphology Sciences, Bruce Rappaport Faculty of Medicine, The Technion, Haifa

The purpose of orthopedic joint implants is to improve joint movement. Within the past 30 years, biomechanical improvements affecting the life-span of the implants has brought a new type of problem: the biological response to debris from the implant material contributes greatly to aseptic loosening of the prosthesis. The process is mediated by osteotropic factors, cytokines released from mononuclear cells, and osteoblasts and osteoclasts in the bone-cement interface or bone-implant interface.