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עמוד בית
Mon, 22.06.26

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November 2006
R.R. Leker, R. Eichel, G. Rafaeli and T. Ben-Hur
 Acute ischemic stroke is one of the leading causes of mortality and chronic disability in the western world. Yet, despite the enormous socioeconomic burden that it imposes, therapies to combat AIS are not widely available. Moreover, revascularization of the ischemic tissue with tissue plasminogen activator, the only FDA-approved therapy for AIS[1], is hampered by a very narrow therapeutic time window and is only used in a minority of patients. Cerebral ischemia leads to brain damage caused by several pathologic mechanisms that can potentially be blocked by neuroprotective drugs that aim to salvage the ischemic penumbra. However, despite numerous clinical trials no single drug candidate has proved efficacious in AIS. The current situation clearly calls for novel therapeutic strategies to be used in acute ischemic stroke. This review surveys some of these novel and promising cutting edge therapies.







[1] AIS = acute ischemic stroke


R. Hirsch and J.Y. Streifler
 Congenital heart disease is usually regarded as an esoteric field of medicine, dealt with primarily by dedicated specialists. However, over the last two decades a much broader attention has been given by the medical profession, the media and the general public, to the possible association between a minor and common congenital heart defect, namely a patent foramen ovale, and stroke. In recent months, unusual and unfortunate circumstances have made this topic one of the most fiercely debated medical issues in Israel. It is the belief of the authors of this paper that the association of PFO[1] and stroke can be better understood if the PFO is viewed as part of a broader aspect of congenital heart disease, and as such it will be presented. Paradoxical embolism is a mechanism of stroke unique to congenital heart disease. The direction and volume of shunted blood in various conditions have a central role in determining the risk of stroke, as will be explained. With this basic knowledge in mind, we shall critically assess the potential role of PFO in stroke patients, suggesting that each case be evaluated individually using the above-mentioned principles. Conditions that enhance the formation of clot or other embolic material will be discussed briefly. The review will conclude with the various treatment options and our center's own experience with this challenging topic.







[1] PFO = patent foramen ovale


January 2006
D. Tanne, U. Goldbourt, S. Koton, E. Grossman, N. Koren-Morag, M. S. Green and N. M. Bornstein

Background: There are no national data on the burden and management of acute cerebrovascular disease in Israel.

Objectives: To delineate the burden, characteristics, management and outcomes of hospitalized patients with acute cerebrovascular disease in Israel, and to examine adherence to current guidelines.

Methods: We prospectively performed a national survey in all 28 hospitals in Israel admitting patients with acute cerebrovascular events (stroke or transient ischemic attacks) during February and March 2004.

Results: During the survey period 2,174 patients were admitted with acute cerebrovascular disease (mean age 71 ± 13 years, 47% women; 89% ischemic stroke or TIA[1], 7% intracerebral hemorrhage and 4% undetermined stroke). Sixty-two percent of patients were admitted to departments of Medicine and a third to Neurology, of which only 7% were admitted to departments with a designated stroke unit. Head computed tomography was performed during hospitalization in 93% of patients. The overall rate of urgent thrombolytic therapy for acute ischemic stroke was 0.5%. Among patients with ischemic stroke or TIA, 94% were prescribed an antithrombotic medication at hospital discharge, and among those with atrial fibrillation about half were prescribed warfarin. Carotid duplex was performed in 30% and any vascular imaging study in 36% of patients with ischemic events. The mean length of hospital stay was 12 ± 27 days for ICH[2] and 8 ± 11 days for ischemic stroke. Among patients with ICH, 28% died and 66% died or had severe disability at hospital discharge, and for ischemic stroke the corresponding rates were 7% and 41% respectively. Mortality rates within 3 months were 34% for ICH and 14% for ischemic stroke.

Conclusions: This national survey demonstrates the high burden of acute stroke in Israel and reveals discordance between existing guidelines and current practice. The findings highlight important areas for which reorganization is imperative for patients afflicted with acute stroke.






[1] TIA = transient ischemic attack

[2] ICH = intracerebral hemorrhage


M. Koren-Michowitz, N. Rahimi-Levene, Y. Volcheck, O. Garach-Jehoshua and A. Kornberg.
November 2005
S. Koton, Y. Schwammenthal, O. Merzeliak, T. Philips, R. Tsabari, B. Bruk, D. Orion, Z. Rotstein, J. Chapman and D. Tanne
 Background: Clinical trials have demonstrated the superiority of managing acute stroke in a dedicated stroke unit over conventional treatment in general medical wards. Based on these findings, nationwide stroke unit care programs have been implemented in several countries.

Objective: To assess the effect of establishing a new dedicated acute stroke unit within a department of neurology on indicators of process of care and outcome of acute stroke in a routine clinical setting in Israel.

Methods: Stroke patients admitted to the Sheba Medical Center during the period March 2001 to June 2002 were included in a prospective study according to selection criteria. Data on demographics, risk factors, co-morbidities and stroke severity were collected. Indicators of process of care and outcome were assessed at hospital discharge and 30 days follow-up. Comparison between outcome variables by hospitalization ward was conducted using logistic regression analysis adjusting for confounders.

Results: Of 616 acute stroke patients (mean age 70 years, 61% men, 84% ischemic stroke), 353 (57%) were admitted to general wards and 263 (43%) to the stroke unit. Diagnostic procedures were performed more often, and infection rate was lower in the setting of the stroke unit. Poor outcome (modified Rankin scale ≥3 or death) was present less often in patients managed in the stroke unit both at hospital discharge (adjusted odds ratio 0.5, 95% confidence interval 0.3–0.8) and at 30 day follow-up (adjusted OR[1] 0.6, 95%CI[2] 0.3–0.9). A Functional Independence Measure score ≤90 or death at 30 day follow-up was less frequent among patients managed in the stroke unit than in general wards (adjusted OR 0.5, 95%CI 0.2–0.8).

Conclusions: Improved outcomes and higher adherence to guidelines were observed in patients treated in a stroke unit within a department of neurology. The results suggest that patients with acute stroke should have access to treatment in a dedicated stroke unit.


 


[1] OR = odds ratio



[2] CI = confidence interval


December 2004
O. Keren, M. Motin, A.W. Heinemann, C.M. O'Reilly, R.K. Bode, P. Sernik and H. Ring

Background: The relationship between the amount of rehabilitation therapy and functional outcome in stroke patients has not been established.

Objectives: To evaluate the effectiveness of inpatient rehabilitation for post-acute stroke, and examine the relationship between intensity of therapies and functional status at discharge.

Methods: We evaluated 50 first-stroke patients, average age 63 years, in a prospective, descriptive study. The impairment and Functional Independence Measurement were assessed both at admission to rehabilitation and at discharge. Patients were monitored weekly during their stay by means of discipline-specific measures of activity level. Predictor variables included intensity of physical, occupational and speech therapies; demographic characteristics; length of stay; and time since the stroke.

Results: A significant reduction in impairment was observed at discharge. The predictors of gains and activity level at discharge as well as motor vs. cognitive components of the FIM[1] were neither consistent nor did they occur in the same trend of functional improvement. Greater FIM motor level at discharge was associated with younger age, higher admission motor and cognitive level, and receipt of any speech therapy, while greater FIM cognitive level was associated with higher cognitive level at admission, shorter interval from onset to admission, and more intense occupational therapy. More intense OT[2] was associated with greater and more cognitive improvement during the hospitalization.   

Conclusion: Since the sample was relatively small and heterogeneous in terms of the patients’ functional abilities, the findings cannot be generalized to the whole population of stroke patients. Further efforts to identify the best timing, modalities, intensity and frequency of the various treatments are needed to improve the cost-benefit equation of rehabilitation in stroke patients.






[1] FIM = Functional Independence Measurement

[2] OT = occupational therapy


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.

October 2004
E. Greenberg, I. Treger and H. Ring

Background: Follow-up examinations in a rehabilitation center clinic after stroke are essential for coordinating post-acute services and monitoring patient progress. Of first-stroke patients discharged from our rehabilitation ward to the community 92% are invited for ambulatory check-up once every 6 months.

Objectives: To review patient complaints at follow-up and the recommendations issued by the attending physical medicine and rehabilitation specialist at the outpatient clinic.

Methods: We extracted relevant data from the records, and assessed the relationship between functional status on admission and discharge (measured by FIM[1]), length of stay, and number of complaints. Patients were divided according to the side of neurologic damage, etiology, whether the stroke was a first or recurrent event, and main clinical syndrome (neglect or aphasia).

Results: Patients' complaints included: decreased hand function (40%), general functional deterioration (20%), difficulty walking (11%), speech dysfunction (10%), various pains (especially in plegic shoulder) (8%), urine control (2%), sexual dysfunction (3%), swallowing difficulties (2%), and cognitive disturbances (2%). Patients received the following recommendations: physiotherapy (52.5%), occupational therapy (37.5%), speech therapy (12.5%), different bracing techniques (22.5%), pain clinic treatment (12.5%), changing medication prescriptions (7.5%), psychological treatment (10%), sexual rehabilitation (5%), vocational counseling (2.5%), counseling by social workers (2.5%), and recurrent neuropsychological diagnosis (2.5%). A reverse correlation was found between the number of complaints and FIM at admission (P = 0.0001) and discharge (P = 0.0003), and between LOS[2] and FIM at admission (P = 0.0001) and discharge (P = 0.004). A direct correlation was found between the number of complaints and LOS (P = 0.029). No relation was found between age, type of stroke, first and recurrent event, and clinical syndromes and patient complaints in the outpatient rehabilitation. Community rehabilitation services met 58% of all recommendations in 62% of patients, mainly physiotherapy and occupational therapy, with 34% of patients waiting for implementation of the recommendations and 4% not available for follow-up.

Conclusions: Follow-up examinations should be an integral part of post-stroke rehabilitation. Rehabilitation treatment in the community must be strengthened.






[1] FIM = Functional Independence Measure

[2] LOS = length of stay


V. Royter, A.Y. Gur, I. Bova and N.M. Bornstein
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