BACKGROUND: Marathon runners (MTH) and @entity1 with @entity339 ( @entity339 ) exhibit left ventricular (LV) overload, and LV geometric changes in these groups have been reported. In this study, right ventricular (RV) adaptation to chronic @entity1284 was evaluated in MTH and @entity339 and normal controls together with @entity5707 and tricuspid annulus (TA) motion. METHODS: A total of 60 age-matched subjects (including 19 MTH, 17 isolated chronic compensated @entity339 @entity1 , and 24 normal subjects) underwent conventional cine and tagged cardiac magnetic resonance imaging. @entity296 and curvature were computed on the interventricular septum and RV free wall. A dual-propagation technique was applied to construct RV volume-time curves for a single cardiac cycle. Similarly, the TA was tracked throughout the cardiac cycle to create displacement over time curve. RESULTS: Septal curvature was significantly lower in MTH and @entity339 compared to controls. No significant differences in RV free-wall strain or RV ejection fraction were noted among the three groups. However, longitudinal TA excursion was significantly higher in MTH compared to controls (p   =   0.0061). The peak late diastolic TA velocity in @entity339 was significantly faster than MTH (p   =   0.0031) and controls (p   =   0.020). CONCLUSION: Increased TA kinetics allows for improved RV performance in MTH. Septal remodeling was observed in both @entity339 and MTH, therefore a direct relationship of septal remodeling to TA kinetics in @entity299 could not be elucidated in this study.

Improved Right Ventricular Performance with Increased Tricuspid Annular Excursion in XXXX .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity296 :: ('MESH:D009202', 'Disease') :: ['Myocardial strain'] @entity339 :: ('MESH:D008944', 'Disease') :: ['MR', 'mitral regurgitation'] @entity5707 :: ('MESH:D020257', 'Disease') :: ['interventricular septal remodeling'] @entity299 :: ('MESH:D006331', 'Disease') :: ["athlete's heart"] @entity1284 :: ('MESH:D019190', 'Disease') :: ['volume overload']
@entity299 :: (MESH:D006331,Disease) :: ['Athlete's Heart']
