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Mitral Stenosis and Aortic Atresia--A Risk Factor for Mortality After the Modified Norwood Operation in Hypoplastic Left Heart Syndrome. Ann Thorac Surg 2016 Jan;101(1):162-7

Date

11/26/2015

Pubmed ID

26602002

DOI

10.1016/j.athoracsur.2015.09.056

Scopus ID

2-s2.0-84955462274 (requires institutional sign-in at Scopus site)   29 Citations

Abstract

BACKGROUND: There are conflicting reports regarding the importance of mitral stenosis and aortic atresia as a risk factor for Norwood mortality. This study reviews outcomes of this anatomic subgroup at our institution and examines the utility of preoperative cardiac catheterization and its correlation with clinical outcomes and pathology findings.

METHODS: This is a single-center, retrospective review of hypoplastic left heart syndrome patients who underwent modified Norwood operation between October 2005 and May 2013.

RESULTS: Fourteen of 74 hypoplastic left heart syndrome patients (19%) had mitral stenosis and aortic atresia. Operative mortality for MS/AA was 29% versus 7% for all other hypoplastic left heart syndrome anatomic subgroups (p = 0.04). Although only 19% of the entire cohort, the mitral stenosis and aortic atresia subgroup constituted 50% of the total operative mortality and the only interstage deaths. Autopsies support myocardial ischemia as the mechanism of death. Although preoperative angiography defined the presence of ventriculo-coronary connections, it did not clearly risk stratify patients in regard to operative mortality.

CONCLUSIONS: Mitral stenosis and aortic atresia is a risk factor for perioperative myocardial ischemia and mortality. Further exploration of myocardial reserve is warranted.

Author List

Siehr SL, Maeda K, Connolly AA, Tacy TA, Reddy VM, Hanley FL, Perry SB, Wright GE

Author

Stephanie S. Handler MD Associate Professor in the Pediatrics department at Medical College of Wisconsin




MESH terms used to index this publication - Major topics in bold

Abnormalities, Multiple
Aortic Valve
California
Female
Follow-Up Studies
Heart Defects, Congenital
Heart Valve Diseases
Humans
Hypoplastic Left Heart Syndrome
Infant, Newborn
Male
Mitral Valve Stenosis
Norwood Procedures
Retrospective Studies
Risk Factors
Survival Rate