Abstract P262: Early Withdrawal of Life Sustaining Treatment After Mechanical Thrombectomy: A Quantitative and Qualitative Analysis

Abstract

Background: Mechanical thrombectomy (MT) is now standard of care for patients with acute large vessel occlusion (LVO) ischemic stroke, after several trials showed significant functional improvement at 90 days. Despite this expected duration for recovery, withdrawal of life sustaining treatment (WLST) often occurs within less than 5 days after MT. We aimed to identify determinants of early WLST and better understand decisions that led to it. Methods: Retrospective chart review at a single academic stroke center from 1/2015 to 8/2020 using mixed methods. We compared patient characteristics and hospital course in those with early WLST (within 5 days) to those without WLST. Six authors conducted in-depth qualitative analysis of family meeting notes among a subgroup of 16 purposively sampled early WLST patients. Results: Among 402 patients (mean age 68.0, SD 14.7 years; 53.7% male) who underwent MT, 88 (21.9%) had WLST, of which 52 (12.9%) were early WLST (mean 2.2, SD 1.3 days). Logistic regression adjusted for sex, race, LVO location, time of MT from last known normal, and post-procedural hemorrhage showed early WLST compared to no WLST was significantly associated with older age, inpatient stroke, increased stroke severity, unsuccessful MT, no tPA given, post-procedural need for craniectomy, and palliative care consultation (p<0.05). One key theme that emerged from goals-of-care conversations was clarity among families of patient’s wishes, with a low tolerance for dependence, which led to early WLST if independence was unlikely immediately after MT. Conclusion: Early WLST after MT occurs frequently in patients with severe stroke and high medical complexity, especially if progression to cerebral herniation. Clear communication before and after MT regarding expected prognosis and trajectory of recovery could allow for improved decision making and prevent potentially premature WLST by providers or families. Prior knowledge of patient’s goals-of-care may also reduce patient or caregiver suffering and improve resource utilization for the healthcare system in patients with severe stroke.