Impact of Procedure Time on First Pass Effect in Mechanical Thrombectomy for Anterior Circulation Acute Ischemic Stroke

Andrew B. Koo, Benjamin C. Reeves, Daniela Renedo, Ilko L. Maier, Sami Al Kasab, Pascal Jabbour, Joon Tae Kim, Stacey Q. Wolfe, Ansaar Rai, Robert M. Starke, Marios Nikos Psychogios, Amir Shaban, Adam Arthur, Shinichi Yoshimura, Hugo Cuellar, Jonathan A. Grossberg, Ali Alawieh, Daniele G. Romano, Omar Tanweer, Justin MascitelliIsabel Fragata, Adam Polifka, Joshua Osbun, Roberto Crosa, Min S. Park, Michael R. Levitt, Waleed Brinjikji, Mark Moss, Travis Dumont, Richard Williamson, Pedro Navia, Peter Kan, Alejandro M. Spiotta, Kevin N. Sheth, Adam De Havenon, Charles C. Matouk

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

BACKGROUND AND OBJECTIVES: First pass effect (FPE) is a metric increasingly used to determine the success of mechanical thrombectomy (MT) procedures. However, few studies have investigated whether the duration of the procedure can modify the clinical benefit of FPE. We sought to determine whether FPE after MT for anterior circulation large vessel occlusion acute ischemic stroke is modified by procedural time (PT). METHODS: A multicenter, international data set was retrospectively analyzed for anterior circulation large vessel occlusion acute ischemic stroke treated by MT who achieved excellent reperfusion (thrombolysis in cerebral infarction 2c/3). The primary outcome was good functional outcome defined by 90-day modified Rankin scale scores of 0-2. The primary study exposure was first pass success (FPS, 1 pass vs ≥2 passes) and the secondary exposure was PT. We fit-adjusted logistic regression models and used marginal effects to assess the interaction between PT (≤30 vs >30 minutes) and FPS, adjusting for potential confounders including time from stroke presentation. RESULTS: A total of 1310 patients had excellent reperfusion. These patients were divided into 2 cohorts based on PT: ≤30 minutes (777 patients, 59.3%) and >30 minutes (533 patients, 40.7%). Good functional outcome was observed in 658 patients (50.2%). The interaction term between FPS and PT was significant (P =.018). Individuals with FPS in ≤30 minutes had 11.5% higher adjusted predicted probability of good outcome compared with those who required ≥2 passes (58.2% vs 46.7%, P =.001). However, there was no significant difference in the adjusted predicted probability of good outcome in individuals with PT >30 minutes. This relationship appeared identical in models with PT treated as a continuous variable. CONCLUSION: FPE is modified by PT, with the added clinical benefit lost in longer procedures greater than 30 minutes. A comprehensive metric for MT procedures, namely, FPE 30, may better represent the ideal of fast, complete reperfusion with a single pass of a thrombectomy device.

Original languageEnglish (US)
Pages (from-to)128-136
Number of pages9
JournalNeurosurgery
Volume95
Issue number1
DOIs
StatePublished - Jul 1 2024
Externally publishedYes

Keywords

  • First pass effect
  • Mechanical thrombectomy
  • Stroke

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology

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