Efficacy of Endovascular Thrombectomy in the Oldest Old (Stroke 90+ Study): A Community Center Experience

Abstract

Background: While endovascular thrombectomy (EVT) is considered as the most effective treatment for a select group of patients with acute ischemic stroke and large vessel occlusion, its safety and efficacy in older patients are still debated especially in read-world settings. This study reports outcomes of EVT in acute ischemic stroke patients aged 90 and older in our community hospital setting. Methods: Data between January 2018 and December 2022 were aggregated for all acute ischemic stroke patients with aged 90 and older at the time of EVT. Thirty-one patients met the criteria and were included in this report. The data valuables included, but are not limited to, demographics, stroke risk factors, thrombolysis in cerebral infarction (TICI), modified Rankin Scale (mRS), and NIH Stroke Scale (NIHSS). Results: All 31 patients had improvement in TICI scale. One had symptomatic intracranial hemorrhage after EVT not related to the procedure, but likely on the basis of reperfusion breakthrough. Three patients expired prior to their discharge from non-stroke related causes. Of remaining 28, four expired, six went into hospice care, and four lost to follow-up by 30-days post DC. Of six hospice cases, one expired by 90-day post DC, and additional three were lost to follow-up. Given this data, 20/27 (74%) survived to 30 days and 16/24 (67%) to 90 days. For their NIHSS symptomatic categories, 15/28 (54%) patients improved, 10/28 (36%) remained the same, and 3/28 (11%) declined. For mRS, at 30-days post DC, 7/24 (30%) patients showed improvement, 7/24 (30%) remained the same, and 10/24 (40%) declined. At 90-days post DC, 7/21 (33%) showed improvement from DC, 4/21 (19%) remained the same, and 10/21 (48%) declined. Conclusions: While a larger cohort study is necessary, our report supports the safety and efficacy of EVT in this patient aged 90 and older in a real-world setting.

Competing Interest Statement

The authors have declared no competing interest.

Funding Statement

This study did not receive any funding

Author Declarations

I confirm all relevant ethical guidelines have been followed, and any necessary IRB and/or ethics committee approvals have been obtained.

Yes

The details of the IRB/oversight body that provided approval or exemption for the research described are given below:

This study obtained exempt status from WCG IRB.

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Yes

I understand that all clinical trials and any other prospective interventional studies must be registered with an ICMJE-approved registry, such as ClinicalTrials.gov. I confirm that any such study reported in the manuscript has been registered and the trial registration ID is provided (note: if posting a prospective study registered retrospectively, please provide a statement in the trial ID field explaining why the study was not registered in advance).

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I have followed all appropriate research reporting guidelines, such as any relevant EQUATOR Network research reporting checklist(s) and other pertinent material, if applicable.

Yes

Data Availability

Portion of the data used for outcome analyses are included as Table 1. Additional data is available upon request.

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