Outcomes management in heart valve replacement surgery: early experience

Area of Science:

• Cardiovascular Surgery
• Health Outcomes Research
• Quality of Life Assessment

Background:

• Healthcare cost reduction and practice variation reduction emphasize treatment appropriateness, patient preference, and quality of life.
• Health status assessment questionnaires provide a structured method to evaluate these treatment characteristics.

Purpose of the Study:

• To evaluate the impact of valve replacement surgery on patient health status using a standardized questionnaire.
• To compare post-operative health status scores to normative data from healthy populations.

Main Methods:

• One hundred patients undergoing valve replacement completed the SF-36 health status questionnaire preoperatively and at 1 and 6 months postoperatively.
• Standardized scores were compared to sex- and age-matched normal populations.

Main Results:

• Preoperatively, patients exhibited significant impairments in physical capacity, role functioning, and vitality.
• One month post-surgery, patients reported decrements in social/role functioning and increased pain.
• Six months post-surgery, most scores neared normal levels, with persistent moderate role functioning impairment.
• Mitral valve replacement, concurrent coronary artery grafting, and bioprosthetic valves were associated with greater post-operative impairment.

Conclusions:

• Structured health status assessment is a valuable tool for evaluating clinical status and treatment outcomes after valve replacement.
• While valve replacement improves overall health status, specific areas like role functioning require continued attention.
• Identifying patient subgroups with greater post-operative functional impairment can inform targeted interventions.