Survival of patients after repair of coarctation of Aorta (CoA) has improved significantly over the decades, but patients have decreased life expectancy as compared to the general population. This has been attributed to increased hypertension, cerebrovascular disease, and coronary artery disease. There has also been an increasing concern of overweight and obesity in patients with adult congenital heart disease. While there have been studies looking at the impact of long-term hypertension on myocardial performance and outcomes in this population, this study aims to assess the impact of obesity in these patients on their myocardial performance. Ventriculo-arterial coupling is used as a measure of myocardial performance which reflects the interaction between cardiac contractility and arterial elastance. Patients after CoA repair are known to have hypertension affecting the arterial elastance. Obesity affects cardiac contractility as well. This study demonstrated that in a group of young patients after CoA repair, body mass index (BMI) has a relationship with left ventricular (LV) contractility and myocardial performance. This relationship was independent of blood pressure. BMI itself was not seen to affect the determinants of diastolic function in this study, suggesting that LV contractility may be affected before one can notice a change in the diastolic function secondary to BMI.
Keyphrases
- left ventricular
- end stage renal disease
- blood pressure
- ejection fraction
- body mass index
- newly diagnosed
- chronic kidney disease
- coronary artery disease
- peritoneal dialysis
- prognostic factors
- metabolic syndrome
- heart failure
- insulin resistance
- cardiovascular disease
- adipose tissue
- congenital heart disease
- weight gain
- coronary artery
- acute myocardial infarction
- pulmonary artery
- fatty acid
- young adults
- mitral valve
- acute coronary syndrome
- atrial fibrillation