Christina L Cui1, Hanaa Dakour-Aridi1, Jens Eldrup-Jorgensen2, Marc L Schermerhorn3, Jeffrey J Siracuse4, Mahmoud B Malas5. 1. Division of Vascular and Endovascular Surgery, Department of Surgery, University of California, San Diego, La Jolla, Calif. 2. Division of Vascular and Endovascular Therapy, Department of Surgery, Maine Medical Center, Portland, Me. 3. Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Boston, Mass. 4. Division of Vascular and Endovascular Surgery, Department of Surgery, Boston University, Boston Medical Center, Boston, Mass. 5. Division of Vascular and Endovascular Surgery, Department of Surgery, University of California, San Diego, La Jolla, Calif. Electronic address: mmalas@ucsd.edu.
Abstract
OBJECTIVE: The current recommendations are to perform carotid endarterectomy within 2 weeks of symptoms for maximum long-term stroke prevention, although urgent carotid endarterectomy within 48 hours has been associated with increased perioperative stroke. With the development and rapid adoption of transcarotid artery revascularization (TCAR), we decided to study the effect of timing on the outcomes after TCAR. METHODS: The Vascular Quality Initiative database was searched for symptomatic patients who had undergone TCAR from September 2016 to November 2019. These patients were stratified by the interval to TCAR after symptom onset: urgent, within 48 hours; early, 3 to 14 days; and late, >14 days. The primary outcome was the in-hospital rate of combined stroke and death (stroke/death), evaluated using logistic regression analysis. The secondary outcome was the 1-year rate of recurrent ipsilateral stroke and mortality, evaluated using Kaplan-Meier survival analysis. RESULTS: A total of 2608 symptomatic patients who had undergone TCAR were included. The timing was urgent for 144 patients (5.52%), early for 928 patients (35.58%), and late for 1536 patients (58.90%). Patients undergoing urgent intervention had an increased risk of in-hospital stroke/death, which was driven primarily by an increased risk of stroke. No differences were seen for in-hospital death. On adjusted analysis, urgent intervention resulted in a threefold increased risk of stroke (odds ratio [OR], 2.8; 95% confidence interval [CI], 1.3-6.2; P = .01) and a threefold increased risk of stroke/death (OR, 2.9; 95% CI, 1.3-6.4; P = .01) compared with late intervention. Patients undergoing early intervention had comparable risks of stroke (OR, 1.3; 95% CI, 0.7-2.3; P = .40) and stroke/death (OR, 1.2; 95% CI, 0.7-2.1; P = .48) compared with late intervention. On subset analysis, the type of presenting symptoms was an effect modifier. Patients presenting with stroke and those presenting with transient ischemic attack or amaurosis fugax both had an increased risk of stroke/death when undergoing urgent compared with late TCAR (OR, 2.7; 95% CI, 1.1-6.6; P = .04; and OR, 4.1; 95% CI, 1.1-15.0; P = .03, respectively). However only patients presenting with transient ischemic attack or amaurosis fugax had experienced an increased risk of stroke with urgent compared with late TCAR (OR, 5.0; 95% CI, 1.4-17.5; P < .01). At 1 year of follow-up, no differences were seen in the incidence of recurrent ipsilateral stroke (urgent, 0.7%; early, 0.2%; late, 0.1%; P = .13) or postdischarge mortality (urgent, 0.7%; early, 1.6%; late, 1.8%; P = .71). CONCLUSIONS: We found that TCAR had a reduced incidence of stroke when performed 48 hours after symptom onset. Urgent TCAR within 48 hours of the onset of stroke was associated with a threefold increased risk of in-hospital stroke/death, with no added benefit for ≤1 year after intervention. Further studies are needed on long-term outcomes of TCAR stratified by the timing of the procedure. Published by Elsevier Inc.
OBJECTIVE: The current recommendations are to perform carotid endarterectomy within 2 weeks of symptoms for maximum long-term stroke prevention, although urgent carotid endarterectomy within 48 hours has been associated with increased perioperative stroke. With the development and rapid adoption of transcarotid artery revascularization (TCAR), we decided to study the effect of timing on the outcomes after TCAR. METHODS: The Vascular Quality Initiative database was searched for symptomatic patients who had undergone TCAR from September 2016 to November 2019. These patients were stratified by the interval to TCAR after symptom onset: urgent, within 48 hours; early, 3 to 14 days; and late, >14 days. The primary outcome was the in-hospital rate of combined stroke and death (stroke/death), evaluated using logistic regression analysis. The secondary outcome was the 1-year rate of recurrent ipsilateral stroke and mortality, evaluated using Kaplan-Meier survival analysis. RESULTS: A total of 2608 symptomatic patients who had undergone TCAR were included. The timing was urgent for 144 patients (5.52%), early for 928 patients (35.58%), and late for 1536 patients (58.90%). Patients undergoing urgent intervention had an increased risk of in-hospital stroke/death, which was driven primarily by an increased risk of stroke. No differences were seen for in-hospital death. On adjusted analysis, urgent intervention resulted in a threefold increased risk of stroke (odds ratio [OR], 2.8; 95% confidence interval [CI], 1.3-6.2; P = .01) and a threefold increased risk of stroke/death (OR, 2.9; 95% CI, 1.3-6.4; P = .01) compared with late intervention. Patients undergoing early intervention had comparable risks of stroke (OR, 1.3; 95% CI, 0.7-2.3; P = .40) and stroke/death (OR, 1.2; 95% CI, 0.7-2.1; P = .48) compared with late intervention. On subset analysis, the type of presenting symptoms was an effect modifier. Patients presenting with stroke and those presenting with transient ischemic attack or amaurosis fugax both had an increased risk of stroke/death when undergoing urgent compared with late TCAR (OR, 2.7; 95% CI, 1.1-6.6; P = .04; and OR, 4.1; 95% CI, 1.1-15.0; P = .03, respectively). However only patients presenting with transient ischemic attack or amaurosis fugax had experienced an increased risk of stroke with urgent compared with late TCAR (OR, 5.0; 95% CI, 1.4-17.5; P < .01). At 1 year of follow-up, no differences were seen in the incidence of recurrent ipsilateral stroke (urgent, 0.7%; early, 0.2%; late, 0.1%; P = .13) or postdischarge mortality (urgent, 0.7%; early, 1.6%; late, 1.8%; P = .71). CONCLUSIONS: We found that TCAR had a reduced incidence of stroke when performed 48 hours after symptom onset. Urgent TCAR within 48 hours of the onset of stroke was associated with a threefold increased risk of in-hospital stroke/death, with no added benefit for ≤1 year after intervention. Further studies are needed on long-term outcomes of TCAR stratified by the timing of the procedure. Published by Elsevier Inc.
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