תוצאת חיפוש

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.

Thrombotic Thrombocytopenic Purpura in AIDS

Alina Weisman, Geris Shehada, Ilana Oren

Depts. of Medicine A and Hematology, Rambam Medical Center and Technion School of Medicine, Haifa

Thrombotic thrombocytopenic purpura (TTP) is characterized by 5 findings: fever, neurological abnormalities, microangiopathic hemolytic anemia, severe thrombocytopenia and renal abnormalities. The syndrome occurs more often in females, usually in their 20's. Since the beginning of the current AIDS epidemic, there have been reports of an association between HIV infection and TTP. We describe a 31-year-old man with HIV who developed TTP, and review the literature.

Attitudes of Family Physicians to Alternative Medicine

Amiram Sarel, Jef Borkan, Ralph L. Carasso, Judith Bernstein, Uri Rozovsky

Brull-Tel Aviv Community Mental Health Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheba; and Dept. of Neurology, Hillel Yaffe Medical Center, Hadera

80 Israeli family physicians (51.25% men and 48.75% women) participated in a telephone survey concerning attitudes, practices and experience with alternative medicine. 23.75% reported practicing 1 or more alternative techniques, most commonly acupuncture28%) and hypnotherapy (24%). 55% had referred at least 1 patient to an alternative practitioner during the preceding month. Physicians who studied in Israel or Western countries referred more patients than graduates of medical schools of Eastern Europe. Specialists referred patients more often than residents. The most common reason for referral was back pain.

Emergency Stenting for Acute Left Main Coronary Artery Closure during Cardiac Catheterization

Alberto Hendler, Oren Agranat

Catheterization Laboratory, Rama Marpeh Hospital, Petah Tikva

We report a case of acute closure of the left main coronary artery, a rare complication of diagnostic cardiac catheterization, treated by emergency stenting prior to aorto-coronary by-pass surgery. We suggest encroachment of the Judkins catheter into a calcified left main ostium, with dissection and acute thrombosis of this segment, as the possible mechanism.

Clinically, the patient's condition deteriorated to cardiogenic shock and loss of consciousness. Remarkably, there was no angiographic evidence of significant left main coronary artery disease, besides the presence of calcification in the proximal part of the left coronary system and ventricularization of coronary pressure at the time of engagement. We chose to slide quickly the angioplasty guidewire through the left main coronary artery, which allowed prompt mechanical recanalization and rapid restoration of coronary flow, with dramatic clinical and hemodynamic improvement. This relatively simple procedure allowed stenting the left main artery after brief predilation, and the patient came to by-pass surgery in excellent condition. The rationale for surgery in this case was the need for complete coronary revascularization because of significant 3-vessel coronary artery disease.

Topical Photodynamic Therapy in Basal and Squamous Cell Carcinoma and Penile Bowen's Disease

Yoram Harth, Bernard Hirshovitz

Photodynamic Therapy Unit, Elisha Medical Center, Haifa

Photodynamic therapy (PDT) is a noninvasive selective therapy for a specific group of skin tumors. 5-aminolevulinic acid 20% in a water-in-oil cream base was applied to the tumors as a photosensitizer and was followed after 12 hours by exposure to a high output light source emitting red (585-720 nm; 150 mW/cm²) and near infrared irradiation (1.25-1.6 mm; 50 mW/cm²) for 10-15 minutes (VersaLight, incoherent filtered light source). Complete responses were achieved after 1-3 treatments in 26/31 lesions of superficial or small nodular basal cell carcinoma (BCC) and 4/5 in superficial, squamous cell carcinoma (SCC) lesions. There was a patient with Bowen's disease of the penis. Follow-up was for 12-24 months. This noninvasive, nearly painless treatment gives excellent therapeutic and cosmetic results. Our data show its efficacy for certain subtypes of BCC, SCC and Bowen's disease. Further studies will determine the exact cure and recurrence rates with this modality and compare it to other modes of skin cancer therapy.

Fibrosarcoma after Silicone Breast Augmentation: Associated?

Anabel Aharon-Maor, Yair Levy, Yehuda Schoenfeld

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

We describe a 42-year-old woman in whom bilateral fibrosarcoma of the breast was diagnosed 15 years after bilateral breast augmentation with silicone implants. 3 years prior to admission the implants were replaced and 2 years prior to admission mammography showed a nodule in the left breast which biopsy showed to be fibrosarcoma. The implants were removed from both breasts and she was given chemotherapy but later that year underwent bilateral mastectomy. Despite chemotherapy, as well as adjuvant radiotherapy, the disease progressed, with involvement of the lungs and the skin of the left hemithorax. She was admitted repeatedly for severe anemia caused by bleeding from the malignant skin lesions, and died less than 2 years after diagnosis of the disease.

Not all reports in the literature find a significant connection between silicone implants and subsequent development of breast cancer, but there are reports that do connect them. Breast fibrosarcoma is not significantly more frequent after silicone augmentation, but still there is controversy as to whether there is a connection between silicone implants and breast malignancy. In the patient we present, the prolonged exposure to silicone may have been a predisposing factor for the development of bilateral fibrosarcoma, since other known risk factors for breast cancer were denied.

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.

Intradermal Hepatitis B Vaccination in Those Not Responsive to Intra-Muscular Vaccination

Hanna Bauer, Israel Potasman, Neora Pick

Infectious Disease Unit, Bnai Zion Medical Center and Faculty of Medicine, The Technion, Haifa

Health care workers are at continuous risk of hepatitis B infection. Currently recommended intramuscular vaccination confers immunity in only 85-90%. We examined the immunogenicity and safety of intradermal vaccination of hepatitis B vaccine in nonresponders. 400 hospital employees who had been immunized as recommended were screened for anti-HBs antibodies and 50 were found seronegative. Each received an intramuscular booster injection and antibody level was measured a month later. Excluded were 33 employees, including 24 late responders, 2 HbsAg carriers and 7 uncooperative employees. 17 employees (mean age 47.1 yrs) then received a series of 3 intradermal injections of Energix B, 0.25 ml in the forearm, 2-3 weeks apart. The mean number of previous intramuscular injections was 4.6±1.4 month later there was a mean titer of 315.4±347.0 miu/ml of antibody in 16/17 workers. Side effects were minimal. Intradermal injection of hepatitis B vaccine for nonresponders seems effective for inducing seroconversion. Its cost-effectiveness for the health care system warrants assessment.

Primary Subclavian Vein Thrombosis after Intensive Physical Exertion

Ora Shovman, Jacob George, Yehuda Shoenfeld

Dept. of Medicine B and Autoimmune Disease Research Unit, Chaim Sheba Medical Center, Tel Hashomer and Sackler Faculty of Medicine, Tel Aviv University

Subclavian vein thrombosis accounts for approximately 1-2% of recorded deep venous thromboses. It may be primary or secondary, and insertion of a central venous catheter is the most common cause of secondary subclavian vein thrombosis. Traumas, anatomic abnormalities and carcinoma are important additional risk factors for secondary thrombosis. Primary thrombosis of the subclavian veins is known as Paget-Schroetter syndrome. New criteria for its diagnosis include a history of increased upper extremity use prior to onset of symptoms, the presence of a venographically demonstrated thrombus and absence of any definable causes. We describe a 42-year-old woman with a history of intensive physical exertion admitted with swelling, pain and difficulty moving her arm. The diagnosis of primary subclavian vein thrombosis was established from the history of physical effort, results of Doppler ultrasound, and exclusion of other causes of subclavian vein thrombosis. This case suggests that primary subclavian vein thrombosis should be considered in young patients with subclavian vein thrombosis after exclusion of secondary disease.

Trauma Registry Database

Moshe Michaelson, Eran Tal-Or

Trauma Unit, Rambam Medical Center, Haifa

Trauma registry is vital for every trauma center. In 1995, data on all injured patients who reached our trauma unit were collected. 3.040 patients were hospitalized, of whom 415 were transferred from other hospitals. We describe the distribution of the patients to in-patient wards and present the relationship between mortality and injury severity score. 1102 hospitalized patients underwent a total of 1599 operations with an overall mortality of 2.63%.

Orthopedic Ward Policy in Introduction of New Types of Total Hip Implants

U. Givon, M.I. Siebzhener, M. Salai, A. Chechick, H. Horoszowski, J. Shemer

Orthopedic Staff, Medical Technology Unit, Medical Dept. F, and Gertner Institute for Study of Health Services, Chaim Sheba Medical Center, Tel Hashomer

The use of different types of total hip implants in medical centers in Israel was surveyed. Questionnaires were sent to all orthopedic ward directors in Israel requesting information on the number of total hip arthroplasties performed between the years 1984-1993, the types of implants used, and whether attending physicians or residents perform the operations. 22 of 24 orthopedic wards responded but 1 ward was excluded because only the results for 1993 were reported. 5 wards reported more and 16 fewer than 50 operations a year. 15 different types of implants were in use in Israel in that period, and in 5 wards 5 or more types of implants were used. Only 1 of the wards performed more than 50 operations a year. We conclude that the indiscriminate use of multiple technologies in wards performing few operations can lead to the long "learning curves" previously associated with poor results. Orthopedic surgeons should resist the impulse to introduce new implants, thus improving results and lowering expenditure. The need for regulating the introduction of new implants is emphasized.

Q Fever Endocarditis and Bicuspid Aortic Valve

Ora Shovman, Jacob George, Yehuda Shoenfeld

Medial Dept. B and Autoimmune Disease Research Unit, Chaim Sheba Medical Center, Tel Hashomer and Sackler of Medicine, Tel Aviv University

Q fever is caused by the rickettsia Coxiella burnetti, an obligate intracellular bacterium acquired by inhalation of infected dust from subclinically infected animals. Q fever may be acute or chronic; the chronic form mostly presents as endocarditis. Immunocompromised states and underlying heart disease are the most important risk factors. Usually the symptoms of Q fever endocarditis are nonspecific and diagnosis is often established very late. New criteria for diagnosis include a single blood culture positive for Coxiella burnetti, positive Q fever serology and characteristic echocardiographic studies. We describe a 49-year-old man with bicuspid aortic valve admitted with fever, weight loss and a new heart murmur. The diagnosis of Q fever endocarditis was established by positive Q fever serology, and an echocardiogram showing vegetations and valvular dysfunction. This case suggests that Q fever endocarditis should be considered in patients with "sterile" endocarditis.

Surgical Repair of Fractures of the Clavicle

O. Safran, R. Mosheiff, Y. Mattan, M. Liebergall

Orthopedic Dept., Hadassah-University Hospital, Jerusalem

Clavicular fractures make up 45% of shoulder girdle fractures. The clavicle's susceptibility to injury is due to its subcutaneous position and its role as the bony connection between the thorax and the shoulder. In 95% of cases the mechanism of injury is a direct blow to the shoulder. These fractures are usually treated conservatively without surgery. But there are a few such fractures that require surgical repair in order to unite well. 9 patients were operated on for clavicular fractures during 1991-1995. The indications for surgical repair were lateral-third fracture, floating shoulder, neurovascular deficit or nonunion. The methods used were open reduction and fixation with either plate and screws, Kirchner wires, cerclage or a combination. All fractures united well, with no infections or new neurovascular deficits. Good range of shoulder motion and acceptable cosmetic results were achieved in all. 1 patient had functional limitation due to brachial neuritis caused by brachial damage at the time of injury. Indications for surgical repair and the methods used in these cases are similar to those described in the literature. The high rate of union and absence of complications support surgical repair for the few clavicular fractures that are not likely to unite properly.

Ischemic Hepatitis in Congestive Heart Failure after an Episode of Hypotension

Ora Shovman, Jacob George, Yehuda Shoenfeld

Dept. of Medicine B and Autoimmune Disease Clinic Research Unit, Sheba Medical Center, Tel Hashomer and Sackler Faculty of Medicine, Tel Aviv University

Ischemic hepatitis can occur as an acute episode in advanced congestive heart failure (CHF). The mechanism is massive necrosis of the central lobules resulting from acute hypoxia when low cardiac output further reduces oxygen supply, aggravating underlying congestion due to poor venous outflow. We describe a 70-year-old woman with congestive heart failure for 7 years who was admitted with jaundice, vomiting, abdominal pain and oliguria after an episode of hypotension. The diagnosis of ischemic hepatitis was established by a documented episode of severe hypotension, followed by elevation of serum transaminases, a rise in serum bilirubin and LDH levels, prolonged prothrombin time and acute renal failure. Other causes of acute hepatitis, such as a virus or drugs were excluded, and improved liver and renal function followed hemodynamic stabilization. We conclude that ischemic hepatitis should be considered whenever acute hepatitis follows a recent episode of systemic hypotension, especially in the context of concomitant CHF.

Water Intoxication following Desmopressin Overdose

D. Segal-Kuperschmit, O. Dali-Gotfrid, A. Luder

Pediatric Dept., Rebecca Sieff Hospital, Safed

Water intoxication is a serious condition which may be caused by desmopressin overdose, with reversible or irreversible neurological complications. In the past, desmopressin was used in endocrinological centers for the treatment of anti-diuretic hormone deficiency (central diabetes insipidus). Indications for hormone treatment have since widened, especially as an effective solution for nocturnal enuresis. It is now often prescribed in community clinics, and its use has been encouraged by extensive promotion. We describe a 15-year-old boy with primary nocturnal enuresis who started treatment with desmopressin 1 year prior to admission. He was allowed to use the drug without supervision, and drank excessively. The result was water intoxication which required admission for intensive care because of loss of consciousness and convulsions for 36 hours.