Optimal Duration of Oral Sildenafil for Perioperative Management of Severe Pulmonary Hypertension in Mitral Valve Replacement
Abstract
Background: Rheumatic heart disease (RHD) involves the mitral valve in 50–60% of cases. Long-term mitral valve pathologies cause multiple sequelae in the form of atrial fibrillation, pulmonary hypertension, and heart failure. Sildenafil has been used as a therapy for the control of pulmonary hypertension, with emphasis on the perioperative period.
Aim: To investigate the influence of oral administration of sildenafil at different durations on intraoperative and postoperative pulmonary hypertension and to compare these effects with preoperative pulmonary pressures.
Methods: This comparative cross-sectional study was conducted at Department of Cardiac Surgery, King Edward Medical University/ Mayo Hospital Lahore between July 2024 and January 2025. Patients were divided into 2 groups. Patients enrolled in the short course of sildenafil were administered oral Sildenafil 50mg/5ml, 3 times a day for 2 days before surgery. And in the long course, the same regimen was given for 7 days.
Results: A Mann-Whitney U test showed that there was no significant difference in the preoperative mean pulmonary artery pressures between the groups receiving the short and long course of oral sildenafil (p-value 0.890). The reduction in mean pulmonary artery pressures from preoperative to postoperative was analyzed to be 16.46 ± 4.13 for the short course whereas it was 24.83 ± 5.04 for the long course and the difference between these two results was found to be statistically significant (p< 0.05, p<…
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Evidence Hub reads this as a cross-sectional, done in people. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause.
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