title: Second-degree AV block.
abstract: Second-degree AV block includes a variety of conduction patterns of variable prognostic significance. Careful analysis of the pattern of PR and R-R intervals, the QRS axis and duration, as well as the presence or absence of structural heart disease should allow the medical director to assess the applicant's risk for life insurance.
authors.affiliation: Ross MacKenzie Consulting, 2261 Constance Drive, Oakville, Ontario, L6J 5L8, Canada. rossmackenzieconsulting@msn.com
authors.forename: Ross
authors.initials: R
authors.lastname: MacKenzie
mesh_terms: D004562:Electrocardiography; D006327:Heart Block / Q000503:physiopathology*; D006801:Humans; D007352:Insurance, Life; D008297:Male; D008875:Middle Aged