title: Surgical correction of persistent truncus arteriosus on a 33-year-old male with unilateral pulmonary hypertension from migration of pulmonary artery band.
abstract: BACKGROUND
  Persistent truncus arteriosus is a rare congenital condition with which survival into adulthood is dismal without surgery. This is the oldest patient reported to our knowledge demonstrating the feasibility of assessing operability in persistent truncus arteriosus with unilateral pulmonary stenosis, and performing full corrective surgery in adulthood.
  
  
  METHODS
  We report a Chinese male with successful correction of Type I persistent truncus arteriosus at 33 years of age. He had unilateral pulmonary hypertension from migration of pulmonary artery band from the main to the right pulmonary artery, severe truncal valve regurgitation from previous infective endocarditis, and progressive congestive heart failure. Improvement of lung perfusion was demonstrated 21 months post operation.
  
  
  CONCLUSIONS
  This case demonstrated that in patients with persistent truncus arteriosus and two pulmonary arteries, pulmonary vascular disease or underdevelopment of one lung does not preclude a full corrective surgery so long as the other vascular bed is normal. It is important to emphasize the importance of assessing patient's operability in totality.
authors.affiliation: Department of Cardiologoy, National Heart Centre Singapore, Level 12, 5 Hospital Drive, Singapore, 169609, Singapore.
authors.forename: Wen
authors.initials: W
authors.lastname: Ruan
authors.affiliation: Department of Cardiothoracic Surgery, National Heart Centre Singapore, Level 12, 5 Hospital Drive, Singapore, 169609, Singapore.
authors.forename: Yee Jim
authors.initials: YJ
authors.lastname: Loh
authors.affiliation: Department of Cardiologoy, National Heart Centre Singapore, Level 12, 5 Hospital Drive, Singapore, 169609, Singapore.
authors.forename: Kenneth Wei Qiang
authors.initials: KW
authors.lastname: Guo
authors.affiliation: Department of Cardiothoracic Surgery, National Heart Centre Singapore, Level 12, 5 Hospital Drive, Singapore, 169609, Singapore. tan.ju.le@singhealth.com.sg.
authors.forename: Ju Le
authors.initials: JL
authors.lastname: Tan
mesh_terms: D000328:Adult; D004697:Endocarditis, Bacterial / Q000209:etiology; D006333:Heart Failure / Q000209:etiology; D006349:Heart Valve Diseases / Q000209:etiology / Q000601:surgery; D006801:Humans; D006976:Hypertension, Pulmonary / Q000209:etiology* / Q000601:surgery; D008297:Male; D011651:Pulmonary Artery / Q000601:surgery; D011666:Pulmonary Valve Stenosis / Q000150:complications* / Q000601:surgery*; D016896:Treatment Outcome; D014339:Truncus Arteriosus, Persistent / Q000150:complications* / Q000601:surgery*
keywords: Case report; Persistent truncus arteriousus; Truncal valve regurgitation; Unilateral pulmonary hypertension