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עמוד בית
Tue, 26.11.24

Search results


April 2012
A. Achiron, B.-Z. Garty, S. Menascu, D. Magalashvili, M. Dolev, B. Ben-Zeev and O. Pinhas-Hamiel
Background: Multiple sclerosis (MS) occurs in young adults and infrequently appears in childhood.

Objectives: To determine the incidence of MS and describe the clinical, cerebrospinal fluid (CSF) and magnetic resonance imaging (MRI) findings at onset MS in children in Israel.

Methods: Incidence and case-specific data were obtained through the MS Center Database and Israeli Health Statistics Census Data over 15 years, from 1995 to 2009, and compared between patients with childhood (< 12 years), juvenile (> 12 years, < 18 years) and adult (> 18 years) onset MS.

Results: Of 1129 eligible MS patients, we identified 10 (0.89%) with childhood-onset MS, 74 (6.55%) with juvenile-onset MS, and 1045 (92.56%) with adult-onset MS. There were 0 to 3 incident childhood cases/year, leading to an annual incidence of 0.1/100,000 among Israeli children the incidence of juvenile and adult MS was 2.6 and 5.4/100,000, respectively. Neurological presentation among children with MS was optic neuritis, motor weakness or brainstem involvement. CSF oligoclonal immunoglobulin (IgG) were positive in 62.5%. The most frequent MRI finding was the occurrence of ¡Ý 3 periventricular white matter lesions followed by corpus callosum lesions, with 71% co-occurrence. Cervical and thoracic lesions occurred in 33% and 43%, respectively. Time to second neurological event ranged from 0.3 to 4.2 years and none of the patients with childhood MS reached EDSS=6.0 within a mean follow-up period of 8.4 years.

Conclusions: Childhood-onset MS is rare, with an incidence of 0.1/100,000 Israeli children. Childhood MS does not differ significantly from juvenile and adult-onset MS in terms of clinical, laboratory and imaging findings.
R. Nesher, R. Kohen, S. Shulman, B. Siesky, Y. Nahum and A. Harris

Background: Vascular insufficiency is considered to play an important role in the pathogenesis of normal-tension glaucoma (NTG). Autoregulation of blood flow in the eye has been shown to be impaired in NTG, resulting in the inability to compensate for changes in intraocular pressure or blood pressure in order to maintain adequate perfusion. Objectives: To evaluate the occurrence of combined bradycardia-hypotension during 24 hour monitoring of blood pressure and heart rate in patients with NTG.

Methods: Eleven NTG patients participated in the study. All had episodic symptoms of dizziness or lightheadedness, but were confirmed as not having a diagnosis of orthostatic hypotension. Twenty-four hour monitoring was performed with systemic blood pressure and heart rate automatically measured every 20 minutes during daytime and every hour during the night. The cardiac diastolic and systolic double products (dDP and sDP) at each reading were calculated by multiplying the heart rate by the respective blood pressure. dDP < 3600 and sDP < 5400 (corresponding to a heart rate of 60 beats/min and a blood pressure of 60 and 90 mmHg, respectively) were considered abnormally low, and dDP < 2500 and sDP < 4000 (corresponding to a heart rate 50 beats/min and a blood pressure of 50 and 80 mmHg, respectively) were considered severely abnormal.

Results: dDP was abnormally low in all 11 NTG patients on at least one occasion, the majority occurring during the night-time hours, while abnormally low sDP was present in 8 of the 11 patients. The mean cumulative duration of low dDP readings was 4.2 ± 3.2 hours. Severely low dDP readings were observed in six patients.

Conclusions: Abnormally low dDP was recorded in all NTG patients, lasting more than an hour in the majority of cases. Abnormally decreased dDP may represent a state of cardiovascular autonomic dysregulation, resulting in low ocular perfusion in certain NTG patients.

E. Lubart, R. Segal, S. Megid, A. Yarovoy and A. Leibovitz

Background: The QT interval reflects the total duration of ventricular myocardial repolarization. Disturbed QT – either prolonged or shortened – is associated with arrhythmia and is life-threatening.

Objectives: To investigate an elderly population for disturbed QT interval.

Methods: We conducted a cross-sectional study on residents of long-term care wards in a geriatric hospital. Excluded were those with pacemaker, atrial fibrillation or bundle branch block. The standard 12 lead and lead 2 electrocardiograms in the patients’ files were used for the evaluation of QT interval.

Results: We screened the ECGs of 178 residents. QTc prolongation based on the mean 12 ECG leads was detected in 48 (28%), while 45 (25%) had prolonged QTc based on lead L2. Factors associated with QT prolongation were male gender, chronic renal failure and diabetes mellitus. Short QT was found in 7 residents (4%) and was not related to any parameter.

Conclusions: About one-third of the elderly long-term care residents in our study had QT disturbances. Such a considerable number warrants close QT interval follow-up in predisposed patients.

 

Y. Wiener, M. Frank, O. Neeman, Y. Kurzweil, J. Bar and R. Maymon

Background: The triple test serum markers for Down’s syndrome screening may be altered because of various conditions other than chromosomal trisomies.

Objectives: To assess the profile of mid-trimester triple test serum markers in a cohort of women treated with low molecular weight heparin (LMWH) for thrombophilia since the first trimester.

Methods: Women with inherited or acquired thrombophilia treated with LMWH prior to 12 weeks gestation were followed between October 2006 and September 2009 at our obstetric outpatient clinic. The second-trimester screening test for Down syndrome was calculated from the combination of triple serum markers and maternal age, and expressed as a multiple of the gestation specific normal median (MoM). Reference MoM values were calculated from the local population. Data on pregnancy outcome were obtained from patient records.

Results: The median human chorionic gonadotrophin (hCG) level of women with inherited thrombophilia was 0.87 MoM, compared to 0.99 MoM in controls (P = 0.038) and compared to 1.355 MoM in women with acquired thrombophilia (P = 0.034). In contrast, alpha-fetoprotein MoMs did not differ significantly between women with inherited and women with acquired thrombophilia (0.88 vs. 0.99 MoM, P = 0.403).

Conclusions: The triple test serum markers may be altered in thrombophilia patients treated with LMWH. Clinicians should consider offering these patients the first-trimester nuchal translucency test and other sonographic markers that are probably unaffected by the underlying maternal disease and/or treatment modality.

R. Nesher, R. Kohen, S. Shulman, B. Siesky, Y. Nahum and A. Harris
M. Shimonov, L. leibou, P. Shechter and A. Judich
March 2012
Z. Mor, T. Shohat, Y. Goor and M. Dan
Background: The increase in human immunodeficiency virus (HIV) among men who have sex with men (MSM) in Israel during the last decade raises concerns regarding other sexually transmitted diseases (STD) in MSM, which are yet undetermined.

Objectives: To evaluate the STD burden in MSM and heterosexuals visiting the Tel Aviv walk-in STD clinic.

Methods: Records of all male patients who attended the clinic once were reviewed to identify demographic characteristics, behavioural attributes, and test results.

Results: Between 2002 and 2008, 1064 MSM (22%) and 3755 heterosexuals (78%) visited the clinic once. Positivity rates in MSM for HIV, urethral Neisseria gonorrhoea and infectious syphilis were higher than in heterosexuals (2.5%, 2.5%. 0.7% vs. 0.6%, 1.3%, 0.3%, respectively), while urethral Chlamydia trachomatis was higher in heterosexuals than in MSM (2.7% and 1.4%, respectively). MSM tested in our clinic were younger than heterosexuals (P < 0.001), more commonly circumcised (P = 0.03) and Israeli-born (P < 0.001), used substances during sex (P = 0.04), and had prior STD (P < 0.001), a greater number of sexual partners (P < 0.001), and earlier sexual debut (P = 0.02). The final multivariate results for MSM to be diagnosed with HIV/STD were greater number of sexual contacts, previous diagnosis with STD, and infrequent use of condom during anal intercourse.

Conclusions: MSM visiting the Levinsky Clinic had higher rates of HIV/STD than heterosexual males, which correlated with their higher-risk behaviors. The unique characteristics of MSM found in our study, such as sex work, substance use, previous diagnosis of STD, multiple partners and inconsistent use of condom during anal sex should be addressed with innovative interventions to prevent STD/HIV in the gay community in Israel.
T. Brosh-Nissimov, Z. Mor, E. Avramovich, E. Katchman, B. Avidor, O. Mor and D. Turner
Background: Outbreaks of syphilis have been described among men who have sex with men (MSM) in many western urban communities in the last few years.

Objectives: To describe the first reported outbreak of syphilis among MSM in Israel within a decade of a constant increase in human immunodeficiency virus (HIV) prevalence.

Methods: All patients diagnosed with syphilis were contacted and asked about their sexual behavior, substance use and previous infections. All were tested for HIV and a phylogenetic analysis was performed. 

Results: A total of 23 (59%) of all 39 male patients diagnosed with primary or secondary syphilis between August 2008 and August 2009 were interviewed. All were MSM and performed anal intercourse, while 13 (55%) reported unprotected anal intercourse. Most participants (21, 91%) practiced unprotected oral intercourse. Nine participants (39%) reported unprotected oral intercourse while using condoms during anal intercourse. Ten participants (43%) reported sexual contacts while traveling abroad in the previous few months. Most participants (96%) were co-infected with HIV, and 15 (68%) were already aware of their HIV infection. Fifteen (66%) reported the use of recreational drugs, alcohol, or both before or during sex. No common source or core transmitters were identified.

Conclusions: This syphilis outbreak included MSM who were co-infected with HIV and were characterized by risky sexual behavior including multiple partners, unprotected anal intercourse and substance use. Future targeted interventions should focus on HIV-infected MSM for secondary prevention.
D. Levy Faber, L. Anson Best, M. Orlovsky, M. Lapidot, R.Reuven Nir and R. Kremer
Background: Pediatric empyema necessitates prompt resolution and early hospital discharge with minimal morbidity. However, the most effective treatment approach is not yet established.

Objectives: To assess the efficacy of an intrapleural streptokinase washing protocol as a non-operative treatment for stage II pediatric empyema as compared to operative decortications, by the number of pediatric intensive care unit (PICU) admissions, length of PICU stay and hospitalization duration.

Methods: We retrospectively evaluated 75 consecutive pediatric empyema cases for the period January 2006 to December 2009. Since July 2007 we have used repeated streptokinase-based pleural washing for stage II patients whose condition did not improve with chest drainage.

Results: Before July 2007, 17 of 23 stage II empyema patients underwent decortication, compared to only 1 of 21 after July 2007. Non-operated children were admitted to the PICU less frequently than those who were operated (83% vs. 31%, P = 0.0006), spent less time in the PICU (2.56 ± 1.92 vs. 1.04 ± 1.9 days, P = 0.0148), with no significant statistical difference in overall hospitalization (13.33 ± 3.69 vs. 11.70 ± 5.74 days, P=0.301).

Conclusions: Using intrapleural streptokinase washing as a non-operative treatment for stage II pediatric empyema yielded comparable success rates to the operative approach, with less morbidity.
O.S. Cohen, I. Prohovnik, A. D. Korczyn, R. Inzelberg, Z. Nitsan, S. Appel, E. Kahana, H. Rosenmann and J. Chapman

Background: While myoclonus and ataxia are considered common in patients with familial Creutzfeld-Jakob disease (fCJD), other movement disorders are less prevalent.

Objectives: To systemically evaluate the frequency of extrapyramidal signs and movement disorders in patients with fCJD.

Methods: A detailed neurological examination, with special emphasis on movement disorders and extrpyramidal signs, was conducted in 43 consecutive symptomatic CJD patients (26 males and 17 females mean age 58.7 ± 8.9 yrs, range 43–77 years) carrying the E200K mutation in the PRNP gene.

Results: Limb or gait ataxia was noted in 38 patients (88%) (37 patients, 86%, had ataxia at presentation). Myoclonus was evident in 25/43 patients (58%) (21 patients, 49%, at presentation). In 95% of the patients (41/43) (37/43, 86% at presentation) at least one extrapyramidal sign throughout the disease course was noted, the most prevalent being rigidity (28/43, 65% of the patients and 22/43, 51% at presentation), followed by the glabellar sign (24/43, 56% of the patients and 22/43, 51% at presentation), bradykinesia (19/43, 44% and 15/43, 35% at presentation), dystonia (15/43, 35% 12/43, 28% at presentation) and tremor (13/43, 30% 12/43, 28% at presentation).

Conclusions: In this unique population of fCJD patients, myoclonus was less prevalent than previously reported while other extrpyramidal signs were common and occurred at a relatively early stage of the disease. The high prevalence of movement disorders can be added to other phenomena characteristic of this familial disorder among Libyan Jews. Whether this is attributable to the E200K mutation itself or to some other mechanism has still to be elucidated.

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