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Normal LV function on echocardiography
Every segment moves inward and thickens (normal systolic thickening is roughly 40% or more). The mitral annulus moves about 1.2–1.6 cm toward the apex (MAPSE; below 10 mm suggests reduced longitudinal function). The apex itself barely moves; the base does the travelling.
Watch it in the simulator →Practise random casesWhere to look
All views. In apical views compare the base, which travels toward the apex, with the near-stationary apex; in PSAX check that every segment of the ring thickens symmetrically.
Typical wall-motion pattern
Example: Normal LV size and function
All 17 segments thicken normally.
EF in this example: 61% (Normal (≥55%)).
Ejection fraction
Across 24 simulated cases of this pattern the true EF ranged from 60% to 68% (median 64%, Normal (≥55%)). Every case in the simulator is different, so practise until your visual estimate lands in the right 5% range.
Teaching points
- 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
Apical foreshortening and near-field clutter can make a normal apex look akinetic. Check that the apex thickens.
Other patterns
- Hyperdynamic left ventricle on echo
- Regional wall motion abnormalities and coronary territories on echo
- Left ventricular aneurysm on echocardiography
- LV thrombus on echocardiography
- Dilated cardiomyopathy and global hypokinesia on echo
- 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