الفهرس 
Right ventricular E / e{u2019} ratio index for intraoperative assessment of right ventricular filling pressure in mitral valve surgeries with pulmonary hypertension
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Abstract
Diastolic dysfunction is an underestimated pathology with a high risk of acute decompensation during the perioperative period. There is sufficient evidence to support the significant prevalence of perioperative diastolic dysfunction and its incidence following cardiac surgery. Measuring of the hemodynamic and echocardiographic parameters of Right ventricular diastolic function (E, e’, RV E / e{u2019}, TAPSE and SPAP) in 40 adult patients with pulmonary hypertension more than 50 mmHg undergoing mitral valve surgery in four intraoperative occasions: After sternotomy, immediately after weaning from CPB, 10 minutes after CPB and after chest closure. There was a significant positive correlation between RV mean E/e’ ratio and mean SPAP (r = 0.72, p = 0.000), a significant positive correlation between RV mean E/e’ ratio and mean CVP (r = 0.47, p = 0.0043) and a significant negative correlation between RV E / e’ ratio and TAPSE - r = - 0.53, p = 0.001