Abstract TP144: VARIANCE-S: Variability Of Assessed Bp Readings In Acute Neuro-intervention Cases And Its Effect On Outcomes Pertaining To Sex Differences

Introduction: Sex differences exist in thrombolytic stroke treatment and outcome and likely in endovascular thrombectomy (EVT). Previous analysis has shown a significant correlation of blood pressure variability (BPV) and sex. The purpose of this study was to assess sex differences in a sample of patients with good recanalization post-with EVT and examine the impact of BPV. Methods: We conducted a retrospective analysis of prospectively collected data from an IRB approved Stroke Registry of two academic Comprehensive Stroke Centers in Southern California between 2017 and 2022. Patients were included if they had 1) anterior circulation ischemic stroke due to large vessel occlusions (LVO) and 2) underwent successful EVT defined as a TICI 2b or 3 result. Male and female subjects were compared for age, sex, Hispanic ethnicity, initial NIHSS, history of HTN, current antihypertensive use, symptom onset to groin puncture time, door to groin puncture time, and symptomatic ICH (sICH), BPV, onset to groin, and door to groin . Good outcome was defined as mRS 0-2. Chi squared a t-test were used as appropriate. Results: We included 131 females and 124 males. There was a significant difference between males and females in: 1) history of a fib (76% v 64%, p=0.42); 2) atrial fibrillation during admission (36% v 50%, p=0.01); 3) age (male 67 v female 73 years, p<0.001); 4) post-EVT SBP (137mmHg v 144mmHg, p-0.02). There was a significant difference in onset to groin (p=0.41), but no significant difference in door to groin (p=0.59). When adjusting for time of onset, there was no significant difference in thrombolysis prior to EVT between groups. There was no significant difference in sICH (6 male v 4% female, p=0.50), 90 day mRS (p=0.81); or discharge disposition (p=0.56). BPV was significantly correlated with sex but not significant for any interaction effect with the variables assessed. Conclusion: This study found no significant sex differences in outcome in this sample. The systems of care provided by an academic, CSC ensure that all patients’ care is expedited and provides the best opportunity for a good outcome in both sexes. Studies of sex differences in EVT treatment and outcome in multiple stroke care settings are vital to reduce disparities in care.