Background The safety and efficacy of endovascular thrombectomy (EVT) in distal vessel occlusion (DVO) are not well described. We aimed to evaluate the technical feasibility and safety of EVT in patients with DVO. Methods We performed a retrospective analysis of consecutive DVOs (defined as M3/M4, A1/A2, and P1/P2 occlusion) who underwent EVT within 24 h since last known well. The primary efficacy outcome was successful reperfusion (mTICI ≥ 2B). Secondary outcomes included successful recanalization with ≤3 passes. The safety outcome measures included the rate of subarachnoid hemorrhage (SAH), all intracerebral hemorrhage (ICH), and symptomatic ICH (sICH). Results A total of 72 patients with DVO was identified: 39 (54%) with M3/M4, 13 (18%) with A1/A2, and 20 (28%) with P1/P2 occlusions. Admission NIHSS score median (IQR) was 12 (11), and 90% of the patients had baseline mRS ≤ 2. Thirty-six percent of the patients received intravenous thrombolytic therapy. Successful recanalization was achieved in 90% of the patients. The median number of passes was 2, with successful recanalization achieved with ≤3 passes in 83% of the patients. ICH was seen in 16% of the patients, including three SAHs. However, only one patient (1.4%) had sICH. Among 48 patients in whom 90-day outcome data were available, 33 (53.2%) had favorable clinical outcome (mRS ≤ 3). In a multivariable logistic regression, only baseline NIHSS was identified as an independent predictor of poor outcome. Conclusion This single-center real-world experience demonstrates that EVT in patients with DVO stroke is safe and feasible and may lead to improved clinical outcome.
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