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Thareja SK, Frommelt MA, Lincoln J, Lough JW, Mitchell ME, Tomita-Mitchell A. A Systematic Review of Ebstein’s Anomaly with Left Ventricular Noncompaction. J Cardiovasc Dev Dis 2022; 9:jcdd9040115. [PMID: 35448091 PMCID: PMC9031964 DOI: 10.3390/jcdd9040115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 03/31/2022] [Accepted: 04/07/2022] [Indexed: 11/16/2022] Open
Abstract
Traditional definitions of Ebstein’s anomaly (EA) and left ventricular noncompaction (LVNC), two rare congenital heart defects (CHDs), confine disease to either the right or left heart, respectively. Around 15–29% of patients with EA, which has a prevalence of 1 in 20,000 live births, commonly manifest with LVNC. While individual EA or LVNC literature is extensive, relatively little discussion is devoted to the joint appearance of EA and LVNC (EA/LVNC), which poses a higher risk of poor clinical outcomes. We queried PubMed, Medline, and Web of Science for all peer-reviewed publications from inception to February 2022 that discuss EA/LVNC and found 58 unique articles written in English. Here, we summarize and extrapolate commonalities in clinical and genetic understanding of EA/LVNC to date. We additionally postulate involvement of shared developmental pathways that may lead to this combined disease. Anatomical variation in EA/LVNC encompasses characteristics of both CHDs, including tricuspid valve displacement, right heart dilatation, and left ventricular trabeculation, and dictates clinical presentation in both age and severity. Disease treatment is non-specific, ranging from symptomatic management to invasive surgery. Apart from a few variant associations, mainly in sarcomeric genes MYH7 and TPM1, the genetic etiology and pathogenesis of EA/LVNC remain largely unknown.
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Affiliation(s)
- Suma K. Thareja
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI 53226, USA; (S.K.T.); (J.W.L.)
- Department of Surgery, Division of Congenital Heart Surgery, Medical College of Wisconsin, Milwaukee, WI 53226, USA;
| | - Michele A. Frommelt
- Department of Pediatrics, Division of Pediatric Cardiology, Children’s Wisconsin, Milwaukee, WI 53226, USA; (M.A.F.); (J.L.)
- Herma Heart Institute, Children’s Wisconsin, Milwaukee, WI 53226, USA
| | - Joy Lincoln
- Department of Pediatrics, Division of Pediatric Cardiology, Children’s Wisconsin, Milwaukee, WI 53226, USA; (M.A.F.); (J.L.)
- Herma Heart Institute, Children’s Wisconsin, Milwaukee, WI 53226, USA
| | - John W. Lough
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI 53226, USA; (S.K.T.); (J.W.L.)
| | - Michael E. Mitchell
- Department of Surgery, Division of Congenital Heart Surgery, Medical College of Wisconsin, Milwaukee, WI 53226, USA;
- Department of Pediatrics, Division of Pediatric Cardiology, Children’s Wisconsin, Milwaukee, WI 53226, USA; (M.A.F.); (J.L.)
- Herma Heart Institute, Children’s Wisconsin, Milwaukee, WI 53226, USA
| | - Aoy Tomita-Mitchell
- Department of Surgery, Division of Congenital Heart Surgery, Medical College of Wisconsin, Milwaukee, WI 53226, USA;
- Department of Pediatrics, Division of Pediatric Cardiology, Children’s Wisconsin, Milwaukee, WI 53226, USA; (M.A.F.); (J.L.)
- Herma Heart Institute, Children’s Wisconsin, Milwaukee, WI 53226, USA
- Correspondence:
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Singh AP, Patra S, Agrawal N, Shankarappa RK. Congenitally corrected transposition of the great vessels associated with morphological right ventricular non-compaction presenting with supraventricular tachycardia. BMJ Case Rep 2013; 2013:bcr-2013-010470. [PMID: 23880631 DOI: 10.1136/bcr-2013-010470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Ajit Pal Singh
- Department of Cardiology, Sri Jayadeva Institute of Cardiovascular Sciences and Research, Bengaluru, Karnataka, India
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