THE DETERMINANTS OF RIGHT VENTRICULAR …
THE DETERMINANTS OF RIGHT VENTRICULAR FAILURE IN PATIENTS ADMITTED WITH ACUTE RIGHT HEART FAILURE
R.B. Berkowitz1,2, E. Alhaj1, K. Satya1, R.B. Manchikalapudi1, S. Dadfarmay
1Hackensack University Medical Center, Hackensack, 2UMDNJ-New Jersey Medical School, New Brunswick, NJ, USA
Objectives: This study sought to analyze the prevalence and determinants of right ventricular (RV) failure in patients admitted with acute left heart (LH) failure.
Background: RV failure has been shown to be a strong predictor of poor outcome. Pulmonary hypertension, which may lead to RV failure, is not related to left ventricular (LV) systolic indices, but is strongly associated with diastolic dysfunction.
Methods: 120 consecutive patients admitted with LH failure were studied. RV failure was defined as RV dilatation by 2D echocardiography. Pulmonary artery systolic pressure (PASP), LV systolic and diastolic function, significant valvular lesions, cardiac chambers sizes and other laboratory values were quantified. Patients were divided into 2 groups: Group1 with RV failure (n=50) and Group 2 without RV failure (n=70). Results were presented as mean SD or percentages. Group comparisons were performed using a standard t test.
Results: 50 out of the 120 patients (group 1) were found to have RV failure (prevalence=42%). Two-thirds of patients in both groups had isolated diastolic dysfunction (35/50 in group 1, 45/70 in group 2) and the rest combined systolic and diastolic dysfunction. Patients in the RV failure group were characterized by higher grade of LV diastolic dysfunction (2.2+0.6 vs. 1.84+0.7, p=0.0070), PASP (57.8mmHg+15.3 vs. 50.14mmHg+12.1, p=0.0028), prevalence of right atrial enlargement (92% vs. 25.7%, p=0.000001) and severe TR (58% vs. 27.1%, p=0.0006).
Conclusions: RV failure is a frequent finding in patients presenting with advanced LH failure and is strongly associated with the severity of LV diastolic dysfunction and higher PASP.
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