title: Reconstruction of a new pulmonary artery in arterial switch operation.
abstract: BACKGROUND
  This study was undertaken to evaluate the new method for the reconstruction of the pulmonary artery in arterial switch operation (ASO).
  
  
  METHODS
  A total of 108 consecutive infants with congenital heart disease were treated with ASO in our department between January 2004 and June 2012. The new pulmonary arterial root was reconstructed with a fresh autologuos pericardium which was clipped pants-like with continuous mattress suture of 6-0 Prolene thread. Patients were reexamined consecutively at 3 and 6 months and 1, 2 and 6 years after discharge. The pulmonary arterial blood velocity was measured by continuous Doppler during systole. The pulmonary flow of healthy children of same age was also measured in the control group. Simplified Bernoulli formula was used to calculate the pressure gradient via the pulmonary artery for determining whether there was pulmonary stenosis.
  
  
  RESULTS
  In this series, 96 infants survived after the surgery and 88 were followed up with a mean peirod of (22±4) months. No pulmonary stenosis was detected with the simplified Bernoulli formula.
  
  
  CONCLUSIONS
  No pulmonary stenosis was detected with the simplified Bernoulli formula.
authors.affiliation: Department of Thoracic and Cardiovascular Surgery, Children's Hospital of Zhejiang University School of Medicine, 57 Zhugan Xiang, Hangzhou, 310003, China.
authors.forename: Bai-Ping
authors.initials: BP
authors.lastname: Sun
authors.forename: Shu
authors.initials: S
authors.lastname: Fang
authors.forename: Ze-Wei
authors.initials: ZW
authors.lastname: Zhang
authors.forename: Fang-Xia
authors.initials: FX
authors.lastname: Chen
authors.forename: Jian-Hua
authors.initials: JH
authors.lastname: Li
authors.forename: Ru
authors.initials: R
authors.lastname: Lin
authors.forename: Qiang
authors.initials: Q
authors.lastname: Shu
authors.forename: Jian-Gen
authors.initials: JG
authors.lastname: Yu
mesh_terms: D002315:Cardiopulmonary Bypass; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011183:Postoperative Complications / Q000209:etiology; D011651:Pulmonary Artery / Q000000981:diagnostic imaging / Q000601:surgery*; D011666:Pulmonary Valve Stenosis / Q000209:etiology; D019651:Plastic Surgery Procedures; D014188:Transposition of Great Vessels / Q000000981:diagnostic imaging / Q000601:surgery*; D016896:Treatment Outcome; D014463:Ultrasonography; D014656:Vascular Surgical Procedures