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CT assessment of tracheobronchial anomaly in left pulmonary artery sling.
MedLine Citation:
PMID:  20490486     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
BACKGROUND: The left pulmonary artery sling (LPAS) is a rare vascular anomaly where the left pulmonary artery arises from the right pulmonary artery, passes over the right bronchus, and goes posteriorly between the trachea and esophagus. The LPAS is frequently associated with cardiac and non-cardiac defects including tracheobronchial abnormalities.
OBJECTIVE: To evaluate the utility of multislice CT (MSCT) and helical CT (HCT) in diagnosing and defining the tracheobronchial anomaly and anatomic relationships between the trachea and aberrant left pulmonary artery.
MATERIALS AND METHODS: MSCT or HCT was performed in 27 children to determine the tracheobronchial anatomy and identify tracheobronchial stenosis. Eighteen children underwent surgery.
RESULTS: According to the Wells classification of LPAS, which includes two main types and two subtypes, there were eight cases of type 1A, five cases of type 1B, six cases of type 2A and eight cases of type 2B in this group. Twenty-four of the 27 children had substantial tracheobronchial stenosis. Four died before surgery; the 18 had reanastomosis of the left pulmonary artery. Five children also had tracheoplasty; three died after surgery.
CONCLUSION: CT, especially MSCT, is an ideal modality for simultaneously identifying aberrant left pulmonary artery and any associated tracheobronchial anomaly. The Wells classification is useful for operative planning.
Authors:
Yu-Min M Zhong; Richard B Jaffe; Ming Zhu; Wei Gao; Ai-Min M Sun; Qian Wang
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Publication Detail:
Type:  Journal Article     Date:  2010-05-19
Journal Detail:
Title:  Pediatric radiology     Volume:  40     ISSN:  1432-1998     ISO Abbreviation:  Pediatr Radiol     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-10-06     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0365332     Medline TA:  Pediatr Radiol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  1755-62     Citation Subset:  IM    
Affiliation:
Department of Radiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Road, Shanghai 200127, China. zyumin2002@yahoo.com
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