CLINICAL STUDY OF POSTERIOR CIRCULATION STROKES IN A TERTIARY CARE CENTRE IN SOUTHERN INDIA
Abstract
Objective: To Study the Clinical profile of patients diagnosed to have Posterior
Circulation strokes and to assess the disability in posterior circulation stroke
Material and Methods: This is a cross sectional study, that included 202 patients, Data of all the patients diagnosed to have posterior circulation
stroke by imaging has been documented in predetermined proforma including the clinical presentation, etiology and modified Rankin scale for
disability assessment at discharge.
Results: Ischemic strokes constitute 69.8% (141 cases) of posterior circulation strokes and hemorrhagic strokes 30.2% (61cases). Ischemic
stroke is more in males (72.34%) than females (27.66%). Hemorrhagic stroke also more in males (65.57%) compared to females (34.43%). In
patients with systemic Hypertension 67.25% had ischemic strokes 32.74% had hemorrhage.
Discussion: Incidence of posterior circulation strokes of 11.32% is comparable to previous studies. Posterior circulation strokes are more
common between the ages of 45 to 65. Ischemic strokes constitute majority of PCS, with predominance for males. The incidence of ischemic
strokes is higher (69.8%) than hemorrhagic strokes which are in accordance with other studies. Systemic Hypertension was the most common
risk factor, causing more Ischemic than hemorrhagic strokes. About 27.72% had favorable MRS of 0-2 at the time of discharge. Another 37.13%
had MRS of about 3-4 mainly due to still persisting motor manifestations of unsteadiness. The remaining MRS 5 (30.69%) had severe motor and
swallowing disability, bedridden state requiring supportive home care. Mortality of 4.46 % was seen in MRS 6 patients.
Conclusion: Hemiplegia was the most common symptom followed by ataxia and visual field defects was the least common symptom, Most of
the patients had nonspecific symptoms like headache, vomiting, giddiness and altered sensorium which points that high index of suspicion is
needed to diagnose posterior circulation stroke.
Keywords
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