Second and third cardiac valve reoperations: factors influencing death and long-term survival

Area of Science:

• Cardiovascular Surgery
• Thoracic Surgery
• Cardiac Surgery

Background:

• Investigating factors affecting hospital death in patients undergoing multiple cardiac valvular surgeries.
• Retrospective analysis of 53 patients operated on between 1985 and 2006.
• Patient groups based on initial operation: closed mitral commissurotomy (Group C) vs. open-heart surgery (Group O).

Purpose of the Study:

• To identify preoperative and postoperative characteristics influencing hospital mortality in patients undergoing 3 or 4 cardiac valvular surgeries.
• To assess the safety and outcomes of complex, multi-stage valvular interventions.
• To provide insights into risk factors for mortality in repeat cardiac valve operations.

Main Methods:

• Retrospective review of hospital records for 53 patients who underwent 3 or 4 cardiac valvular surgeries.
• Categorization into two groups: Group C (initial closed mitral commissurotomy) and Group O (initial open-heart surgery with cardiopulmonary bypass).
• Multivariate analysis to determine significant risk factors for hospital death.

Main Results:

• Overall early mortality rate was 11.3% (6 out of 53 patients).
• Longer aortic cross-clamp times were significantly associated with increased risk of death.
• Double valve replacement during the final operation was also a significant predictor of mortality.

Conclusions:

• Third or fourth cardiac valvular operations can be performed with acceptable early postoperative mortality rates.
• Identifying and mitigating risks associated with prolonged aortic cross-clamp times and double valve replacement is crucial.
• This study contributes to understanding outcomes in complex, reoperative cardiac valvular surgery.