Utility of Genetic Testing in Elite Volleyball Players with Aortic Root Dilation

Med Sci Sports Exerc. 2017 Jul;49(7):1293-1296. doi: 10.1249/MSS.0000000000001236.

Abstract

Basketball and volleyball attract individuals with a characteristic biophysical profile, mimicking features of Marfan syndrome. Consequently, identification of these abnormalities can be lifesaving.

Purpose: To determine how physical examination, echocardiography, and genetic screening can identify elite volleyball players with a previously undiagnosed aortopathy.

Methods: We have performed cardiac screening on 90 US Volleyball National Team members and identified four individuals with dilated sinuses of Valsalva. This case series reports on three individuals who underwent a comprehensive genetics evaluation, including gene sequencing.

Results: Cardiac screening combined with genetic testing can identify previously undiagnosed tall athletes with an aortopathy, in the absence of noncardiac findings of a connective tissue disorder. Subject 1 had a revised Ghent systems (RGS) score of 2 and a normal aortopathy gene panel. Subject 2 had a RGS score of 1 and genetic testing revealed a de novo disease causing mutation in the gene encoding fibrillin-1 (FBN1). Subject 3 had an RGS score of 4.0 and had a normal aortopathy gene panel.

Conclusions: Despite variable clinical features of Marfan syndrome, dilated sinuses of Valsalva were found in 4.9% of the athletes. A disease-causing mutation in the FBN1 gene was identified in subject 2, who had the lowest RGS but the largest aortic root measurement. Subjects 1 and 3, with the highest RGS, had a normal aortopathy gene panel. Our findings provide further evidence suggesting that a cardiac evaluation, including a screening echocardiogram, should be performed on all elite tall adult athletes independent of other physical findings. Genetic testing should be considered for athletes with dilated sinuses of Valsalva (male, >4.2 cm; female, >3.4 cm), regardless of other extracardiac findings.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Body Height
  • Dilatation, Pathologic / diagnosis
  • Dilatation, Pathologic / diagnostic imaging
  • Echocardiography
  • Female
  • Fibrillin-1 / genetics
  • Genetic Testing*
  • Humans
  • Male
  • Marfan Syndrome / diagnosis*
  • Marfan Syndrome / diagnostic imaging
  • Marfan Syndrome / pathology
  • Mutation
  • Physical Examination
  • Sinus of Valsalva / diagnostic imaging
  • Sinus of Valsalva / pathology*
  • Volleyball
  • Young Adult

Substances

  • FBN1 protein, human
  • Fibrillin-1