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Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
Published on: December 11, 2017
Outcomes of the modified Cabrol technique in aortic root replacement: Early and midterm experience
Nayeem Nasher1, Joshua Chen2, Purab Kothari2
1Department of Cardiac Surgery, Thomas Jefferson University Hospital, Philadelphia, PA, United States.
Insights
The modified Cabrol technique for aortic root replacement shows acceptable short- and midterm mortality. This aortic surgery method is a valuable option, especially for patients not on long-term anticoagulation.
Area of Science:
- Cardiovascular Surgery
- Thoracic Surgery
- Aortic Surgery
Background:
- The modified Cabrol technique is known for excellent graft patency.
- Previous studies focused on patients requiring long-term anticoagulation.
- Outcomes in patients managed without mechanical prostheses need further analysis.
Purpose of the Study:
- To analyze the outcomes of the modified Cabrol technique in patients primarily managed without mechanical prostheses.
- To evaluate graft patency and mortality rates in this specific patient cohort.
Main Methods:
- Retrospective analysis of 91 patients undergoing aortic root replacement using the modified Cabrol technique (2014-2024).
- Focus on patients with reimplantation of coronary ostia using separate interposition grafts.
- Survival analysis using Kaplan-Meier and Cox proportional hazards for mortality predictors.
Main Results:
- Only 7.7% of patients received a mechanical composite valve graft.
- Short- and midterm survival rates were 93% at 1 year and 89% at 5 years.
- No significant association found between the modified Cabrol graft and long-term mortality (HR 1.74, p=0.219).
Conclusions:
- The modified Cabrol technique offers an acceptable risk profile for mortality in short- to midterm follow-up.
- This technique is a valuable addition to the aortic surgeon's armamentarium.
- Selective application of the modified Cabrol technique is recommended.
Objectives:
The modified Cabrol technique has been associated with excellent graft patency. However, prior studies were limited to patients largely on long-term anticoagulation. We sought to analyze outcomes in patients primarily managed without mechanical prostheses.
Methods:
We retrospectively analyzed all patients who underwent aortic root replacement by a single surgeon from 2014 to 2024. Patients who underwent reimplantation of one or both coronary ostia using the modified Cabrol technique with separate interposition grafts were identified. Baseline characteristics and postoperative outcomes were reported. Predictors of mortality were analyzed using Cox proportional hazards, and overall survival was reported using Kaplan-Meier analysis.
Results:
We identified 91 patients who underwent the modified Cabrol technique. The median age was 62 [interquartile range, 52-71] years, and 91.2% (83/91) were male. Patients presented urgently or emergently in 38.5% (35/91) of cases, and for acute dissection in 23.1% (21/91) of cases, and endocarditis in 15.4% (14/91). Patients required redo sternotomy in 50% of cases. A mechanical composite valve graft was used in only 7.7% (7/91) of patients. The incidence of long-term myocardial infarction was 4.4% (4/91). Survival at 1 and 5 years was 93% and 89% respectively. There was no significant association with the utilization of Cabrol graft and long-term mortality (Hazard Ratio 1.74, 95% CI 0.76-4.01, p-value 0.219).
Conclusions:
Patients undergoing the modified Cabrol technique had an acceptable risk of mortality in short- and midterm follow-up. The modified Cabrol technique is a valuable tool in an aortic surgeon's arsenal and should be used selectively.
