Factors influencing long-term survival after aortic valve replacement

Area of Science:

• Cardiology
• Cardiac Surgery
• Valvular Heart Disease

Background:

• Aortic valve diseases, including stenosis and insufficiency, significantly impact cardiac function and patient prognosis.
• The role of associated mitral valve disease and specific cardiac parameters in predicting outcomes after aortic valve replacement requires further elucidation.

Purpose of the Study:

• To investigate prognostic predictors in patients undergoing aortic valve replacement for aortic stenosis, aortic insufficiency, and annuloaortic ectasia.
• To evaluate the influence of associated mitral valve disease on long-term survival and clinical improvement post-aortic valve replacement.
• To determine the optimal timing for surgical intervention in patients with aortic valve disease.

Main Methods:

• Retrospective analysis of patient data undergoing aortic valve replacement.
• Assessment of left ventricular (LV) muscle mass index and left ventricular end-diastolic pressure (LVEDP) as prognostic indicators.
• Evaluation of the impact of associated mitral valve disease on postoperative outcomes.

Main Results:

• In aortic stenosis, LV muscle mass index effectively predicted prognosis; associated mitral valve disease did not affect survival post-replacement.
• In aortic insufficiency, associated mitral valve disease significantly impacted outcomes, with generally less clinical improvement compared to aortic stenosis.
• Annuloaortic ectasia group showed the worst prognosis, with LVEDP potentially serving as a predictor.

Conclusions:

• Left ventricular muscle mass index is a key prognostic factor in aortic stenosis.
• Associated mitral valve disease is a critical factor influencing outcomes in aortic insufficiency but not in aortic stenosis.
• Early surgical intervention is advisable for patients with asymptomatic or mildly symptomatic aortic valve disease to improve long-term results.