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Estudo Geral
Master thesis . 2024
Data sources: Estudo Geral
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Emergent Stent Placement for Tandem Lesions in Cervical Artery Dissection.

Authors: Barata, Vasco Horta Martins;

Emergent Stent Placement for Tandem Lesions in Cervical Artery Dissection.

Abstract

Resumo. Título: Colocação Emergente de Stent para Lesões em Tandem na Disseção Arterial Cervical. Introdução: a disseção arterial cervical (CAD) contribui significativamente para a ocorrência de um acidente vascular cerebral isquémico agudo, representando até 25% dos casos em indivíduos com menos de 50 anos. No caso da CAD, a estratégia ideal de tratamento endovascular (EVT) permanece incerta e pode apresentar vários desafios técnicos. Alguns estudos têm sublinhado os potenciais benefícios associados à angioplastia com stent emergente da artéria carótida (eCAS) em pacientes com AVC de oclusão tandem. No nosso estudo, temos como objetivo avaliar a segurança e eficácia da estratégia de colocação de stents emergentes em doentes com acidente vascular cerebral isquémico agudo por oclusão de grandes vasos (LVO - AIS) associada à CAD. Métodos: este é um subestudo que faz parte de um projeto internacional multicêntrico retrospetivo, com uma coorte constituída por pacientes com CAD (projeto STOP-CAD). Incluímos pacientes com CAD oclusiva tandem e oclusões intracranianas submetidas a EVT. Os principais resultados têm como base a Escala de Rankin modificada (mRS) aos 90 dias, a reperfusão cerebral (TICI) e a hemorragia intracraniana sintomática (sICH). Construímos modelos de regressão logística binária, ajustados para idade e para a classificação NIHSS, analisando os resultados primários e secundários com a colocação de stent. Resultados: este estudo incluiu 328 pacientes. A colocação aguda de stent foi realizada em 150 pacientes (45,7%). Em modelos de regressão logística binária ajustados, a colocação de stent não foi associada a diferenças estatisticamente significativas nas pontuações da Escala de Rankin modificada de score 0-2, aos 90 dias [49% vs 41% (aOR=1,35, 95% CI 0,84 – 2,15, p=0,212)] e em sICH [7% vs 8% (aOR=0,95, 95% CI 0,42 – 2,18, p=0,912)], entre os dois grupos. No entanto, descobrimos que a colocação emergente de stent levou a uma maior probabilidade de TICI 2b-3 [86% vs 74% (aOR=2,62, 95% CI 1,37 - 4,98, p=0,003)]. Conclusão: a colocação de eCAS extracraniano parece facilitar a reperfusão dos vasos intracranianos. No entanto, não foram encontradas diferenças nos benefícios de recuperação funcional ou sICH, em pacientes submetidos a este procedimento. Dada a atual falta de evidências definitivas, a decisão de aplicar a colocação de stent, em casos de CAD, ainda requer uma avaliação individual cuidadosa dos riscos associados e dos potenciais benefícios.

Abstract. Title: Emergent Stent Placement for Tandem Lesions in Cervical Artery Dissection. Introduction: Cervical Artery Dissection (CAD) is a significant contributor to acute ischemic stroke, accounting for up to 25% of cases in individuals under the age of 50. In the case of CAD, the optimal Endovascular Treatment (EVT) strategy remains unclear and can pose some technical challenges. Numerous antecedent publications have underscored the potential benefits associated with emergent carotid artery stenting (CAS) in patients presenting with tandem occlusion strokes. In our study, we aim to evaluate the safety and efficacy of the emergent stenting strategy in patients with Large Vessel Occlusion - Acute Ischemic Stroke (LVO - AIS) associated with CAD. Methods: we performed a substudy of an international retrospective multicenter cohort of CAD patients (STOP-CAD). We included patients with tandem occlusive CAD and intracranial occlusions submitted to EVT. Main outcomes were the 90-day modified Rankin Score (mRS), modified thrombolysis in cerebral infarction score (TICI) and symptomatic intracranial hemorrhage (sICH). We constructed binary logistic regression models, adjusted for age and NIHSS score, analyzing primary and secondary outcomes with stent placement. Results: this study included 328 patients. Acute stenting was performed in 150 patients (45.7%). In adjusted binary logistic regression models, stenting was associated with no statistically significant difference in 90-day modified Rankin Scale scores of 0-2 [49% vs 41% (aOR=1,35, 95% CI 0,84 – 2,15, p=0,212)] and in sICH [7% vs 8% (aOR=0,95, 95% CI 0,42 – 2,18, p=0,912)] among the two groups. However, we found that emergent stent placement led to a higher odds of TICI 2b-3 [86% vs 74% (aOR=2,62, 95% CI 1,37 - 4,98, p=0,003)]. Conclusion: emergent extracranial stenting appears to facilitate intracranial vessel recanalization. Yet no differences were found in the functional recovery benefits or sICH of patients submitted to this procedure. Given the current lack of definitive evidence, the decision to employ stenting in CAD still requires a thorough individual assessment of associated risks and potential benefits.

Trabalho Final do Mestrado Integrado em Medicina apresentado à Faculdade de Medicina

Country
Portugal
Related Organizations
Keywords

modified Rankin Scale, disseção arterial cervical, tandem intracranial occlusion, stent, cervical artery dissection, acidente vascular cerebral, oclusão intracraniana tandem, Escala de Rankin Modificada, stroke

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
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