TY - CHAP M1 - Book, Section TI - The Athlete and the Heart A1 - Fernandez, Antonio B. A1 - Thompson, Paul D. A2 - Crawford, Michael H. PY - 2017 T2 - CURRENT Diagnosis & Treatment: Cardiology, 5e AB - ESSENTIALS OF DIAGNOSISThe patient has an extensive history of exercise training.There may be profound sinus bradycardia, sinus arrhythmias, or atrioventricular conduction delays at rest that disappear with exertion.The athlete’s heart may demonstrate four-chamber enlargement and mild left ventricular hypertrophy, but normal diastolic function and B-natriuretic peptide levels. The diastolic wall-to-volume ratio should be < 0.15 mm/m2/mL by magnetic resonance imaging.Most morphologic changes reverse with detraining. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/29 UR - accesscardiology.mhmedical.com/content.aspx?aid=1139748239 ER -