Main Logo

Society for Pediatric Radiology – Poster Archive


Final ID: Paper #: 042

Tomographic Characteristics of the Left Pulmonary Artery Sling: Report of Eleven Cases and Review of Literature

Purpose or Case Report: To describe CTA findings of children with left pulmonary artery sling (LPA) using the classification proposed by Wells, et al and report associated anomalies and surgical outcomes.
Methods & Materials: In a multicentric study from 2013 to 2019, we retrospectively identified 11 patients with a left pulmonary artery sling referred for CT angiography. Demographics, clinical data and outcomes were collected from their medical records. CTA findings were collected by two pediatric radiologists. In all cases, 3D volume-rendered reconstructions plotting the airway and central vessels were obtained.
Results: of the 11 patients (median age: 6 months, range: 1-44 months; 6 girls:5 boys), 9 (81.8%) were symptomatic, with shortness of breath and/or stridor at presentation.
There were seven patients with type 1 (type 1A: n=5, type 1B: n=2) and 4 patients with type 2 (type 2A: n=3, type 2B: n=1). Seven patients had associated cardiovascular anomalies, including ventricular and atrial septal defects (n=3, each), persistent ductus arteriosus and persistent left superior vena cava (n =2, each), and also one case each of partial anomalous pulmonary venous return, pulmonary stenosis, total anomalous pulmonary venous return and foramen oval permeable respectively. The proximal branches of the right pulmonary artery (RPA) had its origin 10 of the 11 cases on the RPA, only one patient showed an anomalous origin of the right middle pulmonary artery from a common orifice between the RPA and LPA. The LPA reanastomosis was performed in 8 patients, including two patients with accompanying tracheoplasties. 2 patients of this series died before surgical correction.
Conclusions: Left pulmonary artery sling is an uncommon vascular ring and CT angiography is an accurate method for demonstrating it and its associated cardiovascular anomalies for an optimal presurgical evaluation of LPAS.
Session Info:

Scientific Session II-B: Cardiovascular


SPR Scientific Papers

More abstracts on this topic:
Value of Dual-energy CT in Diagnosis of Mediastinal Tumors in Children: Initial Experience.

Alizadeh Houman, Siegel Marilyn, Cullinane Mike

Bismuth breast shields for pediatric patients undergoing CT chest, abdomen, and pelvis: the benefits

Finkle Joshua, Marshall Emily, Reiser Ingrid, Zhang Yue, Lu Zheng Feng, Jones Anji, Feinstein Kate

More abstracts from these authors:
Due to circumstances surrounding the coronavirus pandemic, this final ePoster exhibit was not submitted.
You have to be authorized to contact abstract author. Please, Login or Signup.

Please note that this is a separate login, not connected with your credentials used for the SPR main website.

Not Available


We encourage you to join the discussion by posting your comments and questions below.

Presenters will be notified of your post so that they can respond as appropriate.

This discussion platform is provided to foster engagement, and stimulate conversation and knowledge sharing.

Please click here to review the full terms and conditions for engaging in the discussion, including refraining from product promotion and non-constructive feedback.


You have to be authorized to post a comment. Please, Login or Signup.

Please note that this is a separate login, not connected with your credentials used for the SPR main website.

   Rate this abstract  (Maximum characters: 500)