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Acta Neurológica Colombiana
versión impresa ISSN 0120-8748versión On-line ISSN 2422-4022
Resumen
GIRALDO TAPIAS, Lilliana María et al. Functional outcome in posterior circulation acute ischemic stroke patients. Acta Neurol Colomb. [online]. 2021, vol.37, n.3, pp.119-126. Epub 22-Oct-2021. ISSN 0120-8748. https://doi.org/10.22379/24224022377.
BACKGROUND:
Ischemic strokes account for 80 % of all strokes, and one of every five compromises the posterior circulation. The diagnosis is difficult, and the data available about the outcome and mortality are discordant in the literature.
OBJECTIVE:
To investigate the clinicai outcome of patients at 180 days after posterior circulation ischemic stroke
METHODS:
Patients with diagnosis of posterior circulation stroke admitted to Instituto Neurológico de Colombia between September 2017 to 2018 were prospective included. The functional outcome by modified Rankin scale score (mRS) was determined at 1-month, 6-month, and 12-month after disease onset.
RESULTS:
68 patients were included. The median age was 61 years ± 17 and 60.3 % were male. 85 % had a baseline mRS ≤ 1, and 63 % had a baseline National Institute Stroke Scale (NIHSS) ≤ 4. Nine patients were taken to acute recanalization therapies (rtPA, endovascular therapy or both) and seven more delayed arteriography. Sixteen patients (23.5 %) demonstrated an improvement of four or more points over the baseline NIHSS. Forty-six patients (74.2 %) had an excellent outcome 0-1 at six months and 87,1 % were categorized favorable mRS (mRS 0-2). In the adjusted analysis an NIHSS > 4 was a predictor of an unfavorable outcome at 6-month (RR 6.4; IC95 % 2.9-14.2). Six patients died (9 %); four of them in relation to the current event or an ischemic stroke recurrence.
CONCLUSION:
Most of the patients with posterior ischemic stroke have favorable outcomes and a low mortality. The baseline NIHSS is an independent prognostic risk factor.
Palabras clave : Brain infarction; Diagnosis; Disability evaluation (MeSH).