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Technique and Patient Selection Criteria of Right Anterior Mini-Thoracotomy for Minimal Access Aortic Valve Replacement
Published on: March 26, 2018
Management of high-risk patients with aortic stenosis and coronary artery disease
Daniel Wendt1, Philipp Kahlert, Tim Lenze
1Department of Thoracic and Cardiovascular Surgery, West-German Heart Center Essen, University Hospital Essen, Essen, Germany. daniel.wendt@uk-essen.de
Insights
Transcatheter aortic valve implantation with percutaneous coronary intervention is a safe and effective alternative to surgical aortic valve replacement and bypass grafting for high-risk patients. Both strategies show similar 30-day mortality rates in this patient group.
Area of Science:
- Cardiology
- Interventional Cardiology
- Cardiac Surgery
Background:
- Surgical aortic valve replacement (SAVR) with coronary artery bypass grafting (CABG) is the standard treatment for patients with aortic stenosis and coronary artery disease.
- Transcatheter aortic valve implantation (TAVI) combined with percutaneous coronary intervention (PCI) is an emerging alternative strategy for high-risk patients.
Purpose of the Study:
- To compare the efficacy and safety of TAVI + PCI versus SAVR + CABG in high-risk patients.
- To determine if TAVI + PCI is an equivalent strategy to SAVR + CABG regarding 30-day mortality.
Main Methods:
- A total of 243 high-risk patients were studied, divided into two groups: SAVR + CABG (n=184) and PCI within 12 months before TAVI (n=59).
- Propensity score-adjusted regression analysis was used to compare 30-day mortality, the primary endpoint.
- Patient characteristics, including age, EuroSCORE, and STS score, were analyzed.
Main Results:
- The TAVI + PCI group had a higher mean age and higher EuroSCORE and STS scores compared to the SAVR + CABG group (p < 0.001).
- Thirty-day mortality was similar between the groups: 12.5% for SAVR + CABG and 11.9% for TAVI + PCI (odds ratio 0.94, p = 0.89).
- Risk-adjusted analysis confirmed no significant difference in 30-day mortality between the two treatment strategies (p = 0.44).
Conclusions:
- TAVI combined with prior PCI is a viable and equivalent alternative to SAVR + CABG in high-risk patients with aortic stenosis and coronary artery disease.
- The study demonstrates similar outcomes for both treatment strategies in a propensity score-matched high-risk population.
Background:
Aortic valve replacement with coronary artery bypass graft surgery is currently the standard therapy for patients with aortic stenosis and concomitant coronary artery disease. We sought to determine whether transcatheter aortic valve implantation combined with percutaneous coronary intervention might be an equivalent strategy.
Methods:
A total of 243 high-risk patients (Society of Thoracic Surgeons [STS] score >10% and/or European System for Cardiac Operative Risk Evaluation [EuroSCORE] >15%) presenting with aortic stenosis with concomitant coronary artery disease were studied. Patients were treated either by surgical aortic valve replacement combined with coronary artery bypass graft (group 1, n = 184) or by percutaneous coronary intervention within 12 months before transapical or transfemoral transcatheter aortic valve implantation (group 2, n = 59). A propensity score adjusted regression analysis was used to compare 30-day mortality as the primary study endpoint between the groups.
Results:
Group 1 mean age (75 ± 6 years), EuroSCORE (18.1% ± 13.8%), and STS score (13.1% ± 8.7%) were significantly different from group 2 (mean age 80 ± 6 years, EuroSCORE 27.5% ± 16.3%, and STS score 16.7% ± 10.5%; p < 0.001). Thirty-day mortality was 12.5% in group 1 compared with 11.9% in group 2 (odds ratio 0.94, 95% confidence interval: 0.38 to 2.32, p = 0.89). Univariate analysis revealed left ventricular ejection fraction, pulmonary hypertension, renal insufficiency, STS score, EuroSCORE, and previous cardiac surgery as predictors for 30-day mortality (p < 0.05). Risk-adjusted multivariate regression analysis showed only left ventricular ejection fraction to be strongly associated with 30-day mortality and confirmed no significant difference between the groups (p = 0.44). To further control for study bias, a 10-layer propensity score model based on the univariate analysis again indicated equivalence regarding the primary endpoint (p = 0.33).
Conclusions:
The present study demonstrates that transcatheter aortic valve implantation in combination with prior percutaneous coronary intervention within 12 months produces similar results in a propensity score matched high-risk patient population.
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