Relationship of infarct artery patency and left ventricular ejection fraction to health-related quality of life after...

Area of Science:

• Cardiology
• Health Services Research
• Quality of Life Research

Background:

• The association between post-myocardial infarction (MI) ejection fraction (EF) and infarct-related artery patency with health-related quality of life (HRQOL) outcomes was previously unestablished.
• The GUSTO-I Angiographic Study provided a cohort for examining these potential relationships over a 2-year follow-up period.

Purpose of the Study:

• To investigate the relationship between left ventricular ejection fraction (EF) and infarct-related artery patency with long-term health-related quality of life (HRQOL) outcomes in patients post-myocardial infarction (MI).

Main Methods:

• A cohort of 1848 patients from the GUSTO-I Angiographic Study were interviewed 2 years after MI to assess HRQOL.
• HRQOL domains included physical function, psychological well-being, perceived health status, and social function.
• Multivariable models were used to analyze the relationships between EF, artery patency, and HRQOL outcomes, considering factors like age, sex, and comorbidities.

Main Results:

• Left ventricular ejection fraction (EF) was significantly associated with all HRQOL dimensions: physical function (P:=0.021), social function (P:=0.014), psychological well-being (P:=0.042), and perceived health status (P:=0.024).
• Decreasing EF predicted poorer outcomes across all HRQOL dimensions.
• Infarct-related artery patency showed no direct relationship with any HRQOL outcome. Men generally reported better HRQOL, except for perceived health status. Increasing age and comorbidities were linked to worse HRQOL outcomes, with younger patients reporting more psychological distress.

Conclusions:

• This study is the first to establish a significant link between left ventricular ejection fraction (EF) and long-term health-related quality of life (HRQOL) following myocardial infarction (MI).
• The preservation of left ventricular function (EF) offers a significant advantage, complementing the mortality benefits, and should be considered when evaluating MI treatment strategies.