[Results and prognosis following heart valve replacement]
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Insights
Cardiac valve replacement outcomes improved over time, with aortic valve surgery showing better survival and fewer complications than mitral or multiple valve replacements. Patient age and heart size also impacted results.
Area of Science:
- Cardiovascular Surgery
- Medical Device Technology
- Patient Outcomes Research
Context:
- Analysis of long-term outcomes for 786 patients undergoing cardiac valve replacement between 1965 and 1982.
- Focus on early mortality, functional improvement, survival rates, and complication profiles.
Purpose:
- To evaluate the long-term efficacy and safety of cardiac valve replacement procedures.
- To identify factors influencing patient outcomes, including valve type, age, and cardiac size.
Summary:
- Early mortality decreased from 7.3% to 3.2% over the study period.
- Aortic valve replacement demonstrated superior functional improvement and survival rates compared to mitral or multiple valve replacements.
- Overall complication rate was 6.4% per patient-year, with thromboembolic and bleeding events most common. Aortic valve replacement had the lowest complication rate (5.5%), while multiple valve replacement had the highest (11.4%).
- Cardiac size post-surgery significantly influenced complication rates, with normal-sized hearts experiencing fewer issues.
Impact:
- Highlights the importance of valve type selection and patient-specific factors in cardiac valve surgery.
- Suggests improvements in surgical techniques and patient management over time have reduced mortality and complications.
- Emphasizes the prognostic significance of postoperative cardiac dimensions for complication risk.
Abstract:
786 patients who underwent cardiac valve replacement between 1965 and 1982 were followed up. Early mortality rate was 7,3% for the total observation period and decreased to 3,2% for the last four years. Patients with aortic valve replacement had better results in regard to their functional improvement as well as in their survival rate compared to those with mitral- or multiple valve replacement. Early mortality was also influenced by age at time of surgery. Overall complication rate was 6,4% per patient year with thromboembolic and bleeding complications being the most frequent. Patients with aortic valve replacement had the lowest (5,5%), those with multiple valve replacement the highest (11,4%) complication rate. It was also significantly influenced by cardiac size independent from location of valve replacement. Patients who had a heart of normal size postoperatively had significantly less complications.