Athletes heart: Difference between revisions
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==Overview== | |||
Athlete's heart is a term that refers to concentric and symmetric hypertrophy of the left ventricle that occurs in some athletes. It is important to distinguish Athlete's heart, which is not a true [[cardiomyopathy]] from [[hypertrophic obstructive cardiomyopathy]] ([[HOCM)]], which is a true [[cardiomyopathy]] and places the athlete at risk of [[sudden death]]. | |||
==Traditional Criteria for Distinguishing Athlete's Heart from HOCM== | |||
Several criteria can be used to distinguish these two entities: | |||
===The degree of left ventricular wall thickness=== | |||
*In athlete's heart the LVH is symmetric and less than or = to 12 mm | |||
*Rarely the LV thickness can be 14-16 mm and this makes it difficult to distinguish from HOCM. Athletes who engage in strength training may develop this pattern | |||
*If the degree of thickening is out of proportion to the type and intensity of exercise, this suggests HOCM | |||
===The pattern of left ventricular wall thickness=== | |||
*Athleste's heart is symmetric | |||
*HOCM is more often asymmetric, but may in some cases be symmetric | |||
===The left ventricular cavity size=== | |||
*HOCM has smaller LV cavitary dimensions | |||
==Sophisticated Criteria and Testing to Distinguish Athlete's Heart from HOCM== | |||
*Doppler mitral valve inflow patterns are diagnostic of [[HOCM]] | |||
*Tissue doppler echocardiography | |||
* Electrocardiogram: HOCM is favored if there are prominent q waves, large increases in voltages, and deep T wave inversions | |||
*The presence of an LV outflow tract gradient favors the diagnosis of [[HOCM]] | |||
*A speckled pattern on MRI favors the diagnosis of [[HOCM]] | |||
{{WH}} | {{WH}} | ||
{{WS}} | {{WS}} | ||
[[Category:Cardiology]] | [[Category:Cardiology]] | ||
Revision as of 18:38, 26 May 2010
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Overview
Athlete's heart is a term that refers to concentric and symmetric hypertrophy of the left ventricle that occurs in some athletes. It is important to distinguish Athlete's heart, which is not a true cardiomyopathy from hypertrophic obstructive cardiomyopathy (HOCM), which is a true cardiomyopathy and places the athlete at risk of sudden death.
Traditional Criteria for Distinguishing Athlete's Heart from HOCM
Several criteria can be used to distinguish these two entities:
The degree of left ventricular wall thickness
- In athlete's heart the LVH is symmetric and less than or = to 12 mm
- Rarely the LV thickness can be 14-16 mm and this makes it difficult to distinguish from HOCM. Athletes who engage in strength training may develop this pattern
- If the degree of thickening is out of proportion to the type and intensity of exercise, this suggests HOCM
The pattern of left ventricular wall thickness
- Athleste's heart is symmetric
- HOCM is more often asymmetric, but may in some cases be symmetric
The left ventricular cavity size
- HOCM has smaller LV cavitary dimensions
Sophisticated Criteria and Testing to Distinguish Athlete's Heart from HOCM
- Doppler mitral valve inflow patterns are diagnostic of HOCM
- Tissue doppler echocardiography
- Electrocardiogram: HOCM is favored if there are prominent q waves, large increases in voltages, and deep T wave inversions
- The presence of an LV outflow tract gradient favors the diagnosis of HOCM
- A speckled pattern on MRI favors the diagnosis of HOCM