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Inicio Medicina Clínica Effectiveness of statins in patients with stroke due to cervical artery dissecti...
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Vol. 157. Issue 7.
Pages 313-317 (October 2021)
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Vol. 157. Issue 7.
Pages 313-317 (October 2021)
Original article
Effectiveness of statins in patients with stroke due to cervical artery dissection: A preliminary study
Efectividad de las estatinas en pacientes con ictus debido a disección arterial cervical: un estudio preliminar
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Bruno Kusznir Vitturi
Corresponding author
z_azul@hotmail.com

Corresponding author.
, Rubens José Gagliardi
Department of Neurology, Santa Casa de São Paulo School of Medical Sciences, Dr. Cesário Motta Júnior Street 112, 01221-020 São Paulo, Brazil
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Table 1. Baseline and clinical characteristics of patients according to statin subgroups.
Table 2. Multivariable analysis of the independent clinical predictors of stroke recurrence and good functional outcome expressed in odds ratio (OR) with 95% confidence interval (95% CI).
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Abstract
Background

Statin therapy has become one of the most important advances in stroke secondary prevention. Nevertheless, statin therapy in patients who present an ischemic stroke following cervical artery dissection (CAD) has not yet been supported by clinical evidence. This study aimed to investigate the effect of statins on neurological outcomes after a stroke due to CAD.

Methods

We conducted a prospective cohort study including consecutive patients diagnosed with a stroke due to CAD. Subjects were classified into non-statin, simvastatin 20mg, simvastatin 40mg, and high-potency statin groups. After 2 years, the functional outcome, stroke recurrence, major cardiovascular events, and mortality were assessed.

Results

Among the 54 patients included in our cohort, there were 16 (29.6%) patients without statins, 22 (40.7%) with simvastatin 20mg, 12 (22.2%) with simvastatin 40mg and 4 (7.5%) with high-potency statins. Using simvastatin 40mg was associated with a significantly lower incidence of stroke recurrence. Patients with simvastatin 40mg and high-potency statins presented the best functional recovery throughout the follow-up (p<.01).

Discussion

The use of statins in patients with CAD-related stroke may improve functional outcomes in specific cases. Statins do not prevent stroke recurrence and major cardiovascular events in this type of stroke.

Keywords:
Statins
Cervical artery dissection
Ischaemic stroke
Outcomes
Resumen
Introducción

La terapia con estatinas se ha convertido en uno de los avances más importantes en la prevención secundaria del ictus. Sin embargo, la terapia con estatinas en pacientes que presentan un ictus isquémico después de la disección arterial cervical (CAD) aún no ha sido respaldada por evidencia clínica. Este estudio tuvo como objetivo investigar el efecto de las estatinas en los resultados neurológicos después de un ictus debido a CAD.

Métodos

Realizamos un estudio de cohorte prospectivo que incluyó pacientes consecutivos diagnosticados con un ictus debido a CAD. Los sujetos se clasificaron en: sin estatina, simvastatina 20mg, simvastatina 40mg y grupos de estatina de alta potencia. Después de 2 años se evaluaron el resultado funcional, la recurrencia del ictus, los principales eventos cardiovasculares y la mortalidad.

Resultados

Entre los 54 pacientes incluidos en nuestra cohorte había 16 (29,6%) pacientes sin estatinas, 22 (40,7%) con simvastatina 20mg, 12 (22,2%) con simvastatina 40mg y 4 (7,5%) con estatinas de alta potencia. El uso de simvastatina 40mg se asoció con una incidencia significativamente menor de recurrencia de accidente cerebrovascular menor. Los pacientes con simvastatina 40mg y estatinas de alta potencia presentaron la mejor recuperación funcional durante todo el seguimiento (p<0,01).

Discusión

El uso de estatinas en pacientes con ictus relacionado con CAD puede mejorar los resultados funcionales en casos específicos. Las estatinas no previenen la recurrencia del ictus y los principales eventos cardiovasculares en este tipo de ictus.

Palabras clave:
Estatinas
Disección arterial cervical
Ictus isquémico
Resultados

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