Title
Clinical Study Investigating the Effect of Sodium Nitroprusside Infusion on Thyroidal Function
Does Sodium Nitroprusside Infusion Affect Thyroidal Function in Patients Undergoing Coronary Artery Bypass Grafting, a Prospective Randomized Clinical Trial.
Phase
Phase 4Lead Sponsor
Kavaklıdere Umut HospitalStudy Type
InterventionalStatus
Unknown statusIndication/Condition
Nitroprusside Thyroid HormonesIntervention/Treatment
nitroprusside ...Study Participants
106Whether use of SNP during cardiac surgery has any effect on thyroid function has not yet been investigated in humans. The aim of this study was to investigate the effects of SNP administration during the rewarming period of cardiac operations on circulating levels of thyroid hormones.
sodium nitroprusside infusion at 1 microgram/kg/min dose during rewarming period of cardiac operations
placebo
arm2: control group,saline infused instead of sodium nitroprusside
Inclusion Criteria: Patients without history of: thyroidal disease hypertension pulmonary disease peripheral vascular disease stroke recent myocardial infarction within the week prior to operation unstable angina pectoris liver or kidney dysfunction morbid obesity cachexia sulfonylurea intake Exclusion Criteria: Patients who needed positive inotropic pharmacologic support during or after the operation Patients who developed atrial fibrillation in the post operative period requiring amiodarone therapy In addition, patients receiving any medication known to interfere with any step of thyroid hormone metabolism such as amiodarone propranolol furosemide non-steroidal anti-inflammatory agents steroids estrogens antacids diphenylhydantoin spironolactone