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Peri-operative Oral Triiodothyronine Replacement Therapy to Decrease the Risk of Transient Atrial Fibrillation After Off-pump Coronary Artery Bypass Surgery

This study has been completed.
Information provided by (Responsible Party):
Yong-Sun Choi, Yonsei University Identifier:
First received: June 29, 2010
Last updated: July 23, 2012
Last verified: July 2012
This study is planned to medicate oral T3(Liothyronine)to the patients who are planned to have OPCAB(off- pump coronary bypass graft surgery. The aim of this study was to assess the effects of oral triiodothyronine (T3) therapy on postoperative thyroid hormone concentrations, hemodynamic variables and outcomes in patients undergoing OPCAB in a randomized, controlled trial.

Condition Intervention
Non-thyroidal Illness Syndrome
Drug: liothyronine sodium
Drug: placebo

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Investigator)
Primary Purpose: Supportive Care
Official Title: Peri-operative Oral Triiodothyronine Replacement Therapy to Decrease the Risk of Transient Atrial Fibrillation After Off-pump Coronary Artery Bypass Surgery

Resource links provided by NLM:

Further study details as provided by Yonsei University:

Primary Outcome Measures:
  • compare the serum T3 concentrations and the number of patients with serum T3 concentrations below the normal range between the groups [ Time Frame: until 36 hours after surgery ]

Secondary Outcome Measures:
  • difference of hemodynamic performance and myocardial injury [ Time Frame: during surgery and 36 hr after surgery ]
    difference of hemodynamic performance and myocardial injury between the groups

Other Outcome Measures:
  • major morbidity endpoints including acute renal failure, cardiovascular failure, stroke, mediastinitis, need for ventilator support for >48 h, and new onset atrial fibrillation [ Time Frame: until discharge of hospital ]

Enrollment: 100
Study Start Date: June 2010
Study Completion Date: September 2011
Primary Completion Date: August 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: T3
Drug: liothyronine sodium
liothyronine sodium 20ug, every 12hour (before anesthetic induction, total 4 times)
Active Comparator: cyanocobalamin
vitamin B12
Drug: placebo
vitamin B12


Ages Eligible for Study:   20 Years to 75 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patients who are undergoing Off-pump coronary artery bypass graft

Exclusion Criteria:

  • No normal sinus rhythm,
  • History of thyroid disease
  • Abnormal thyroid hormone
  • Renal dysfunction
  • Hepatic dysfunction
  • LVEF <30%
  • Recent MI
  • Active infection 1~15
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Please refer to this study by its identifier: NCT01153360

Korea, Republic of
Severance Hospital
Seoul, Korea, Republic of
Sponsors and Collaborators
Yonsei University
Principal Investigator: Yong-Sun Choi, MD, Ph.D Anesthesiology & Pain Medicine, Severance Hospital
  More Information

Responsible Party: Yong-Sun Choi, assistant professor, Yonsei University Identifier: NCT01153360     History of Changes
Other Study ID Numbers: 4-2010-0086
Study First Received: June 29, 2010
Last Updated: July 23, 2012

Additional relevant MeSH terms:
Atrial Fibrillation
Euthyroid Sick Syndromes
Arrhythmias, Cardiac
Heart Diseases
Cardiovascular Diseases
Pathologic Processes
Thyroid Diseases
Endocrine System Diseases processed this record on April 28, 2017