system
Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: BACKGROUND, METHODS, RESULTS. Meshes: Aged, Aged, 80 and over, Echocardiography, Female, Heart Diseases, Heart Rate, Humans, Male, Middle Aged, Systole, Ventricular Function, Right.
user
Does right ventricular presystolic peak velocity represent right ventricular function in stable patients? Context: Right Ventricular (RV) function is difficult to be measured but plays a role in morbility and mortality of patients with cardiopulmonary diseases, so many echocardiographic parameters have been developed from M-mode, B-mode and Doppler Tissue Imaging (DTI) evaluation. Right Ventricular Presystolic Peak velocity (RVPrP) measured with DTI of the tricuspidal annulus and its changes in RV dysfunction have never been assessed in a patient's cohort of stable patients with cardiovacular risk factors. RVPrP velocity could have a role in RV function evaluation; this study address such issue. 436 consecutive patients were submitted to a complete echocardiographic examination with the contemporary evaluation of the following RV function indexes: Tricuspid Annulus Plane Systolic Excurtion (TAPSE), RV Systolic Peak (RVSyP) and RVPrP. Pulmonary artery systolic pressure (PASP), left ventricular and RV diastolic function were also evaluated. According to TAPSE and RVSyP taken alone or in combination, 113 patients had RV dysfunction, while 323 patients had normal RV function. RVPrP was reduced in patient's group with RV dysfunction with respect to patient's group with preserved RV function (16.48 +/- 7.3 cm/sec vs. 23.98 +/- 8.4 cm/sec, respectively, p< 0.001). RVPrP was related with RVSyP (p < 0.001) and with TAPSE (p = 0.002). TAPSE and RVSyP revealed a poor concordance to define RV dysfunction. PASP was higher in patient's group with reduced RV function (p = 0.033).
assistant
The study showed RVPrP able to detect stable patients with RV dysfunction. Final Decision: yes