Abstract Number ‐ 161: Comparing Stroke Thrombectomy Outcomes In Younger V/S Older Population

Introduction Large vessel occlusion (LVO) is estimated to account for up to 39% of all ischemic strokes with 62% of them resulting in post‐ischemic stroke dependency and 96% of all post‐ischemic stroke mortality. Advanced imaging modalities and efficient stroke systems of care have resulted in faster reperfusion times. There is however limited data on the outcomes of thrombectomy as a function of age. We present a retrospective analysis on thrombectomy in younger (age 18–49 years) versus older (age >50 years) patients. Methods Retrospective single center study with population being identified using our procedural database and “SlicerDicer” tool on EPIC from 2017–2021. Patients who underwent mechanical thrombectomy were divided into 2 groups based on age. Younger group consists of patients between the ages 18–49 while older group is 50 and over. Primary outcome of the study was to identify good clinical outcome as defined by mRS of 0–2 in both groups. Secondary outcomes included rate of favorable reperfusion defined by TICI 2b‐3, symptomatic ICH and mortality rate. Results > We have identified 48 patients between the age of 18–49 and 436 over the age of 50. > We found that median groin puncture to repercussion time was lower in younger population (32 v/s 69 mins; p = 0.0044) > The median groin puncture to first pass time was lower in younger population (22 v/s 43; p = 0.056), but it failed to show statistical significance. > Younger compared to older patients had better clinical outcomes (mRS 0–2) at 77.1% v/s 32.3% (p< 0.0001) and higher rates of favorable repercussion (TICI 2b‐3) at 93.7% v/s 72.9% (p = 0.0016) > The older group required more passes to achieve recanalization (4 or more passes: 4.3% v/s 16.2%; p = 0.035) > Mortality rate was significantly less in the younger population (8.3% v/s 22.1%; p = 0.026) Conclusions Younger patients had better clinical outcomes than their older counterparts after mechanical thrombectomy in our analysis. Other than younger age, higher rates of favorable repercussion, earlier recanalization, and less passes to recanalization were seen in association with better observed outcomes.