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Dilated cardiomyopathy and global hypokinesia on echo
A big, spherical ventricle with normal or thin walls and reduced thickening everywhere. Small mitral valve opening (low stroke volume) and often an enlarged LA and functional mitral regurgitation.
Watch it in the simulator →Practise random casesWhere to look
Apical 4-chamber (sphericity, dilated cavity), PLAX (LV diameters) and PSAX (globally reduced thickening).
Typical wall-motion pattern
Example: Dilated, globally hypokinetic LV
Hypokinetic: all 17 segments
EF in this example: 29% (Severely impaired (≤35%)).
Ejection fraction
Across 24 simulated cases of this pattern the true EF ranged from 16% to 36% (median 24%, Severely impaired (≤35%)). Every case in the simulator is different, so practise until your visual estimate lands in the right 5% range.
Teaching points
- Global hypokinesia: every segment thickens poorly. Do not confuse slightly worse segments with a coronary territory — judge the overall distribution.
- Ventricular ectopics: the premature beat is weak and dyssynchronous and the beat after the pause is stronger. Judge EF and wall motion on normal sinus beats only.
- Atrial fibrillation: filling and EF vary from beat to beat. Average at least five beats, or use an index beat (one that follows two similar RR intervals), and avoid beats after a very short RR interval.
Common pitfalls
Do not over-call a coronary territory when all segments are reduced; judge the overall distribution.
Other patterns
- Normal LV function on echocardiography
- Hyperdynamic left ventricle on echo
- Regional wall motion abnormalities and coronary territories on echo
- Left ventricular aneurysm on echocardiography
- LV thrombus on echocardiography
- Takotsubo cardiomyopathy on echocardiography
- LBBB on echo: septal flash, apical rocking and dyssynchrony
- RV pacing dyssynchrony on echocardiography
- Paradoxical septal motion after cardiac surgery
- RV pressure overload on echo: systolic D-shaped septum
- RV volume overload on echo: diastolic D-shape and paradoxical septal motion
- Combined RV pressure and volume overload on echo: D-shape in systole and diastole
- Concentric LV hypertrophy on echocardiography
- Hypertrophic cardiomyopathy on echo: asymmetric septal hypertrophy and SAM
- LV non-compaction on echocardiography