Long-term Outcomes of Aortic and Mitral Valve Surgery
Author Information
Author(s): Niall C. McGonigle, J. Mark Jones, Pushpinder Sidhu, Simon W. MacGowan
Primary Institution: Royal Victoria Hospital, Belfast, UK
Hypothesis
Does the type of mitral valve procedure (repair vs replacement) affect long-term survival in patients undergoing aortic valve replacement?
Conclusion
The type of mitral valve procedure does not significantly influence long-term survival after double valve surgery.
Supporting Evidence
- Seventeen patients (5.4%) died within 30 days of surgery, with 96 deaths during follow-up.
- Fifteen-year survival rates were 44% for double valve replacement and 57% for aortic valve replacement with mitral valve repair.
- Patients undergoing redo operations had a higher likelihood of valve replacement.
Takeaway
This study looked at patients who had surgery to replace their heart valves and found that whether they had their mitral valve repaired or replaced didn't really change how long they lived afterward.
Methodology
A retrospective study analyzing 316 patients who underwent double valve replacement or aortic valve replacement with mitral valve repair over a 21-year period, with follow-up achieved through questionnaires and medical records.
Potential Biases
The decision to perform either DVR or AVR+MVrep was dependent on the operating surgeon, which could introduce variability in outcomes.
Limitations
The study was retrospective and not randomized, which may introduce bias in treatment decisions.
Participant Demographics
The cohort included 227 females and 89 males, with a median age of 60.1 years for DVR and 57.9 years for AVR+MVrep.
Statistical Information
P-Value
p < 0.05 for age as a predictor of survival.
Confidence Interval
CI 1.47–2.45 for age hazard ratio.
Digital Object Identifier (DOI)
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