Validation study of the Siriraj stroke score in North-east Nigeria

Type Journal Article - Nigerian journal of clinical practice
Title Validation study of the Siriraj stroke score in North-east Nigeria
Author(s)
Volume 11
Issue 3
Publication (Day/Month/Year) 2008
Page numbers 176-180
URL http://www.ajol.info/index.php/njcp/article/viewFile/11399/63578
Abstract
The management and prognosis of stroke depends on the correct assessment of its pathological
sub-type. It is therefore pertinent to have a simple and quick means of evaluating patients with stroke. The
Siriraj stroke score (SSS) was developed in Thailand based on clinical parameters and have a good predictive
value. This study aims at validating the Siriraj stroke score, as the predictive value of any diagnostic score
depends on the prevalence of the disease in the community. Patients who had stroke less than fourteen days before admission were enrolled into the study.
Clinical variables for calculating the Siriraj stroke score were documented all patients subsequently had
computerized tomography scan performed. A total of fifty patients were studied from University of Maiduguri
Teaching Hospital and the State Specialist Hospital Maiduguri. Twenty-seven patients had infarction while twenty-three patients had hemorrhagic strokes
respectively, based on the CT scan findings. The Siriraj stroke score correctly diagnosed fourteen as
infarction and twenty as having hemorrhagic strokes, sixteen subjects were unclassified. The SSS correctly
diagnosed thirteen cases as infarctive and seventeen as hemorrhagic strokes as confirmed by CT scan. The
sensitivity and the predictive value of the SSS were 76.2% and 93% for infarction and 94.4% and 85% for
hemorrhagic stroke respectively with overall accuracy of 84.6%. The clinical variables such as headache,
vomiting and atheroma markers did not show discriminant value independently in differentiating CI and
CH. However, level of Consciousness (coma) and diastolic blood pressure of greater than 110mmHg are
discriminant variables in differentiating CI and CH. Siriraj stroke score is recommended to be used in this community especially where CT scan is
not available or affordable and the physician wishes to start thrombolytic or/and anticoagulation therapy

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