Journal of vascular surgery · 2021
Predictors of outcome in diabetic patients undergoing infrapopliteal endovascular revascularization for chronic limb-threatening ischemia.
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Yap Trixie, Silickas Justinas, Weerakkody Ruwan, Lea Talia, Santhirakumaran Gowthanan, Bremner Laura, Diamantopoulos Athanasios, Biasi Lukla, Thomas Stephen, Zayed Hany, Patel Sanjay D
Аннотация
OBJECTIVE: The incidence of chronic limb-threatening ischemia in diabetic patients is increasing. The factors influencing outcome after infrapopliteal revascularization in these patients are largely unknown. Therefore, this study aims to identify the impact of perioperative glucose control on the long-term outcomes in this patient cohort, and furthermore to identify other factors independently associated with outcome.
METHODS: Consecutive diabetic patients undergoing infrapopliteal endovascular revascularization for chronic limb-threatening ischemia were identified. Patients' demographics, procedural details, daily capillary blood glucose, and hemoglobin A1C levels were collected and analyzed against the study end points using Kaplan-Meier and Cox regression analysis.
RESULTS: A total of 437 infrapopliteal target vessels were successfully crossed in 203 patients. Amputation-free survival by Kaplan-Meier (estimate (standard error)%) was 74 (3.3)% and 63 (3.7)%, primary patency was 61 (4.2)% and 50 (4.9)%, assisted primary patency was 69 (5.2)% and 55 (6.1)%, and secondary patency was 71 (3.8)% and 59 (4.1)% at 1 year and 2 years, respectively. Cox regression analysis showed high perioperative capillary blood glucose levels to be an independent predictor of binary restenosis (hazard ratio [HR], 1.49; 95% confidence interval [CI], 1.31-1.1.78; P = .015). Postprocedural dual-antiplatelet therapy was found to be an independent predictor of amputation-free survival (HR, 1.69; 95% CI, 1.04-2.75; P = .033), and freedom from major adverse limb events (HR: 1.96; 95% CI, 1.16-3.27; P = .023) and baseline estimated glomerular filtration rate was significantly associated with better amputation-free survival (HR, 0.52; 95% CI, 0.31-0.87; P = .014).
CONCLUSIONS: Poor perioperative glycemic control is associated with a higher incidence of restenosis after infrapopliteal revascularization in diabetic patients. Dual antiplatelet therapy is associated with better outcomes in this group.
METHODS: Consecutive diabetic patients undergoing infrapopliteal endovascular revascularization for chronic limb-threatening ischemia were identified. Patients' demographics, procedural details, daily capillary blood glucose, and hemoglobin A1C levels were collected and analyzed against the study end points using Kaplan-Meier and Cox regression analysis.
RESULTS: A total of 437 infrapopliteal target vessels were successfully crossed in 203 patients. Amputation-free survival by Kaplan-Meier (estimate (standard error)%) was 74 (3.3)% and 63 (3.7)%, primary patency was 61 (4.2)% and 50 (4.9)%, assisted primary patency was 69 (5.2)% and 55 (6.1)%, and secondary patency was 71 (3.8)% and 59 (4.1)% at 1 year and 2 years, respectively. Cox regression analysis showed high perioperative capillary blood glucose levels to be an independent predictor of binary restenosis (hazard ratio [HR], 1.49; 95% confidence interval [CI], 1.31-1.1.78; P = .015). Postprocedural dual-antiplatelet therapy was found to be an independent predictor of amputation-free survival (HR, 1.69; 95% CI, 1.04-2.75; P = .033), and freedom from major adverse limb events (HR: 1.96; 95% CI, 1.16-3.27; P = .023) and baseline estimated glomerular filtration rate was significantly associated with better amputation-free survival (HR, 0.52; 95% CI, 0.31-0.87; P = .014).
CONCLUSIONS: Poor perioperative glycemic control is associated with a higher incidence of restenosis after infrapopliteal revascularization in diabetic patients. Dual antiplatelet therapy is associated with better outcomes in this group.