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J Thorac Cardiovasc Surg. 2014 Feb;147(2):672-7. doi: 10.1016/j.jtcvs.2013.09.055. Epub 2013 Nov 16.

Outcomes of systemic to pulmonary artery shunts in patients weighing less than 3 kg: analysis of shunt type, size, and surgical approach.

Author information

  • 1Medical College of Wisconsin and the Herma Heart Center at the Children's Hospital of Wisconsin, Milwaukee, Wis.
  • 2Medical College of Wisconsin and the Herma Heart Center at the Children's Hospital of Wisconsin, Milwaukee, Wis; Division of Critical Care in the Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wis.
  • 3Medical College of Wisconsin and the Herma Heart Center at the Children's Hospital of Wisconsin, Milwaukee, Wis; Division of Quantitative Health Sciences in the Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wis; Division of Cardiothoracic Surgery in the Department of Surgery, Medical College of Wisconsin, Milwaukee, Wis.
  • 4Medical College of Wisconsin and the Herma Heart Center at the Children's Hospital of Wisconsin, Milwaukee, Wis; Division of Quantitative Health Sciences in the Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wis; Department of Pediatrics, Medical College of Wisconsin, Medical College of Wisconsin, Milwaukee, Wis.
  • 5Medical College of Wisconsin and the Herma Heart Center at the Children's Hospital of Wisconsin, Milwaukee, Wis; Division of Cardiothoracic Surgery in the Department of Surgery, Medical College of Wisconsin, Milwaukee, Wis.
  • 6Medical College of Wisconsin and the Herma Heart Center at the Children's Hospital of Wisconsin, Milwaukee, Wis; Division of Cardiothoracic Surgery in the Department of Surgery, Medical College of Wisconsin, Milwaukee, Wis. Electronic address: rwoods@chw.org.

Abstract

OBJECTIVE:

To evaluate outcomes of systemic to pulmonary artery shunts (SPS) in patients weighing less than 3 kg with regard to shunt type, shunt size, and surgical approach.

METHODS:

Patients weighing less than 3 kg who underwent modified Blalock-Taussig or central shunts with polytetrafluoroethylene grafts at our institution from January 1, 2000, to May 31, 2011, were reviewed. Patients who had undergone other major concomitant procedures were excluded from the analysis. Primary outcomes included mortality (discharge mortality and mortality before next planned palliative procedure or definitive repair), cardiac arrest and/or extracorporeal membrane oxygenation (ECMO), and shunt reintervention.

RESULTS:

In this cohort of 80 patients, discharge survival was 96% (77/80). Postoperative cardiac arrest or ECMO occurred in 6/80 (7.5%), and shunt reintervention was required in 14/80 (17%). On univariate analysis, shunt reintervention was more common in patients with 3-mm shunts (11/30, 37%) compared with 3.5-mm (2/36, 6%) or 4-mm shunts (1/14, 7%) (P < .003). There were no statistically significant associations between shunt type, shunt size, or surgical approach and cardiac arrest/ECMO or mortality. Multiple logistic regression demonstrated that a shunt size of 3 mm (P = .019) and extracardiac anomaly (P = .047) were associated with shunt reintervention, whereas no variable was associated with cardiac arrest/ECMO or mortality.

CONCLUSIONS:

In this high-risk group of neonates weighing less than 3 kg at the time of SPS, survival to discharge and the next planned surgical procedure was high. Outcomes were good with the 3.5- and 4-mm shunts; however, shunt reintervention was common with 3-mm shunts.

Copyright © 2014 The American Association for Thoracic Surgery. Published by Mosby, Inc. All rights reserved.

KEYWORDS:

20; CPB; CS; ECMO; HIPAA; Health Insurance Portability and Accountability Act; MBTS; SPS; cardiopulmonary bypass; central shunt; extracorporeal membrane oxygenation; modified Blalock-Taussig shunt; systemic to pulmonary artery shunt

PMID:
24252942
[PubMed - indexed for MEDLINE]
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