Abstract W P117: Risk of Carotid Revascularization During the Acute Period According to Neurological Instability
Background: Neurological instability may increase operative risks and decrease the benefit of early carotid revascularization in patients with carotid stenosis.
This study aims to define the risks after carotid revascularization performed during the acute period stratified for the presenting neurological event.
Methods: Consecutive patients undergoing carotid revascularization in 2009-2014 during the acute period (within 15 days from the last neurological event) were reviewed. Thirty-day and 4-year stroke/death rates were analyzed in patients presenting with Transient Ischemic attack (TIA), recurrent TIA (more than one in the last 2 weeks before treatment) and stable stroke.
Results: There were 227 patients (71% males; mean age 73.6y): 104 (45.8%) were treated after stable stroke. In 46 (20.3%) recurrent TIA were recorded before treatment. According to timing, 123 interventions were performed within the first 7 days and 36 within the first 48hours from index symptom. At 30-day there were 2 deaths, 1 fatal cerebral hemorrhage and 4 recurrent ischemic strokes. 30-day stroke/death rate was 1.6% in patients with TIA, 4.9% in patients with stroke, 4.5% in those with recurrent TIA. Multivariable analysis (backward stepwise) for 30-day stroke/death risk identified recurrent TIA presentation as the strongest independent predictor (Odds ratio,OR, 16.8; 95% Confidence Interval, CI, 1.47-191.7; P=.023), while stroke presentation was retained as a borderline statistical predictor (OR 14.8; 95%CI 0.96-228.6; P= 0.05). At 4-year, survival (86% vs. 94.9% P=.034) and freedom from stroke recurrence (90.4% vs. 97%; P=.055) rates were lower for patients with stroke presentation compared to other patients. Patients with recurrent TIA a showed comparable 4-year outcomes than other TIA patients (survival 94% vs 95% P=. 93; Stroke freedom rates 97% vs 97%; P=.86)
Conclusions: For symptomatic patients undergoing carotid intervention during the acute period, presentation with recurrent TIA may expose to increased periprocedural 30-day stroke/death risk. Nevertheless, stroke remains a major marker of poorer late outcomes while recurrent TIA does not impact long-term survival and stroke recurrence.
Author Disclosures: P. De Rango: None. L. Farchioni: None. M. Lenti: None. E. Cieri: None. F. Verzini: None. G. Parlani: None. S. Pelliccia: None. V. Caso: None.
- © 2015 by American Heart Association, Inc.