TY - BOOK AU - Hany Reda Mohamed Elgamal AU - Azza Ezzat , AU - Ikram Abdallah , AU - Mai Madkour , TI - Intraoperative magnesium sulphate versus nitroglycerine infusion effect on pulmonary hypertension in congenital cardiac defects / PY - 2016/// CY - Cairo : PB - Hany Reda Mohamed Elgamal , KW - Congenital cardiac defects KW - Magnesium sulphate versus KW - Nitroglycerine infusion N1 - Thesis (Ph.D.) - Cairo University - Faculty of Medicine - Department of Anaesthesia; Issued also as CD N2 - MgSO4 has been studied in PAH in neonates; however no relevant studies discussed its effect on PAH associated with congenital heart disease, as one of the challenges facing pediatric cardiac anesthesiologist due to its detrimental effect in arterial oxygenation and ventilator dependence. Methodology: We tested this hypothesis by infusing MgSO4 all through the corrective surgical procedure and measuring Pulmonary artery pressure, oxygenation index & alveolar arterial oxygen difference.Results: Magnesium sulphate infusion caused 10% reduction in mean PAP from 39±13 to 35 ± 9 mm.Hg. Oxygenation index improved being 2.9± 0.9 baseline, to become 2.7 ± 0.9 before CPB & 3.1 ± 1.4 after bypass which was statistically significant when compared to control group. Alveolar arterial oxygen difference readings were 271 ± 10.5 at baseline, 258 ± 15.3 before CPB, and 275 ± 17 after CPB & was statistically insignificant between both groups. There was statistically significant reduction in Heart rate before CPB but was not associated with hemodynamic instability.Conclusion: Magnesium sulphate is a drug that could produce a reduction in pulmonary artery pressure associated with improvement in oxygenation index & mild reduction in heart rate without occurrence of systemic hypotension UR - http://172.23.153.220/th.pdf ER -