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Role of gated cardiac computed tomographic angiography in the evaluation of postsurgical complications after stage I Norwood procedure and its implications on management: a comparative study with two-dimensional echocardiography

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Abstract

Background

The Norwood procedure is the first part of a three-stage surgical palliation for patients with functionally single ventricle anatomy. Complications after the stage I operation are not uncommon. Transthoracic echocardiography (TTE) is traditionally the mainstay for evaluation.

Objective

The purpose of our study is to compare gated cardiac computed tomographic angiography (CCTA) with TTE when evaluating for postoperative complications after stage I Norwood procedure and to describe management implications.

Materials and methods

A retrospective chart review of all patients over a 4-year period who underwent nonelective urgent CCTA for suspected complications related to stage I Norwood procedure was performed. Elective CCTA studies before stage II palliation were excluded. Patient demographics, CCTA and TTE findings, as well as interventions performed, were recorded.

Results

Thirty-four patients were included. The mean age at CCTA was 63 days (range: 4–210 days). All patients had a recent TTE with a mean time interval between TTE and CCTA of 2 days. CCTA detected 56 abnormalities in 30 patients, with 23 directly related to postsurgical complications, including shunt-related complications (10/23, 43%), Damus-Kaye-Stansel anastomotic narrowing (2/23, 9%) and neo-aortic arch/branch vessel abnormalities (11/23, 48%). These complications were managed as follows: surgery (9, 39%), catheter-based intervention (7, 30%), medical (4, 17%) and no change in management (3, 13%). TTE did not detect 8/23 (35%) findings found on CCTA, of which 75% were either managed with surgery (4/8, 50%) or catheter-based intervention (2/8, 25%).

Conclusion

CCTA plays an important role in detecting surgical complications after stage I Norwood procedure and demonstrates additional findings that have direct management implications.

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Authors and Affiliations

  1. Edward B. Singleton Department of Radiology, Texas Children’s Hospital, Baylor College of Medicine, 6701 Fannin St., Suite 470, Houston, TX, 77030, USA

    Rida Salman, Marcos P. Ferreira Botelho, Pamela M. Ketwaroo, Prakash M. Masand & Siddharth P. Jadhav

  2. Virtual Radiologic Corporation, Eden Prairie, MN, USA

    Snehal R. More

  3. The Lillie Frank Abercrombie Section of Cardiology, Baylor College of Medicine, Houston, TX, USA

    Silvana Molossi

Authors
  1. Rida Salman
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  2. Snehal R. More
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  3. Marcos P. Ferreira Botelho
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  4. Pamela M. Ketwaroo
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  7. Siddharth P. Jadhav
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Correspondence to Siddharth P. Jadhav.

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Salman, R., More, S.R., Ferreira Botelho, M.P. et al. Role of gated cardiac computed tomographic angiography in the evaluation of postsurgical complications after stage I Norwood procedure and its implications on management: a comparative study with two-dimensional echocardiography. Pediatr Radiol 51, 1185–1191 (2021). https://doi.org/10.1007/s00247-021-04966-4

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  • DOI: https://doi.org/10.1007/s00247-021-04966-4

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