Submitted: 19 Jan 2017
Revised: 22 Sep 2017
Accepted: 22 Sep 2017
First published online: 30 Sep 2017
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J Cardiovasc Thorac Res. 2017;9(3):179-182.
doi: 10.15171/jcvtr.2017.31
PMID: 29118953
PMCID: PMC5670342
  Abstract View: 46
  PDF Download: 148

Short Communication

The role of preoperative sildenafil therapy in controlling of postoperative pulmonary hypertension in children with ventricular septal defects

Hamid Bigdelian 1, Mohsen Sedighi 2,3 *

1 Department of Cardiovascular Surgery, School of Medicine, Isfahan University of Medical Science, Isfahan, Iran
2 Department of Cardiovascular Surgery, Chamran Heart Center, Isfahan University of Medical Science, Isfahan, Iran
3 Department of Neuroscience, Faculty of Advanced Technologies in Medicine, Iran University of Medical Science, Tehran, Iran

Abstract

Introduction: Most of the ventricular septal defects (VSD) are complicated with pulmonary arterial hypertension (PAH) which is the major cause of pulmonary hypertensive crisis and right ventricular failure.
Methods: We reviewed clinical outcomes of 63 infants who underwent cardiac surgery and were divided into three groups. Control group (n=20) did not received sildenafil while group A (n = 22) received drug (0.3 mg/kg) before and after surgery. Group B (n=21) received drug at the initiation of surgery. Demographic data, preoperative and postoperative variables were compared among the patients.
Results:
Patients in the group A had lower preoperative pulmonary arterial pressure (PAP) compared to other groups (P < 0.001). Also, patients in control group had longer cardiopulmonary bypass time (P < 0.05). Postoperative PAP in patients of group A and B decreased significantly compared to control group (P < 0.001). Also, pre- and postoperative PVR (pulmonary vascular resistance) showed a significant decrease in group A compared with control and group B (P < 0.001). The intubation time in patients of the control group was significantly more prolonged compared with patients of group A and B (P < 0.001). Moreover, the length of ICU stay was significantly longer in patients of control group compared with group A and B (P < 0.001).
Conclusion: Preoperative sildenafil therapy seems to be effective and safe to prevent postoperative PAH and pulmonary hypertensive crisis in children with ventricular septal defects and has a positive impact on postoperative care.
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