[Neurocardiogenic syncope and hereditarity].

Authors :: Azevedo MC
Barbisan JN
Silva EO
Source :: Revista da Associacao Medica Brasileira (1992) [Rev Assoc Med Bras (1992)] 2009 Jan-Feb; Vol. 55 (1), pp. 19-21.
Publication Year :: 2009
Abstract: Objective: To investigate a possible familial predisposition in neurocardiogenic syncope.<br />Methods: Cross-sectional survey with 252 subjects, with positive familial history for syncope, who underwent head-up tilt-test (TT) at Instituto de Cardiologia do Rio Grande do Sul, between September 2001 and September 2005. The relationship between familial history for neurocardiogenic syncope and TT result was analysed.<br />Results: Familial history for neurocardiogenic syncope was identified in 40% (49/126 cases) of subjects with positive tilt-test results and 25% (31/126 ) of those with negative TT.<br />Conclusion: There is a correlation between familial history for neurocardiogenic syncope and its occurence. A genetic component can possibly explain this relationship.