left ventricular mid-cavity obstruction(English)

• occurs during LV ejection due to partial or complete systolic obliteration that divides the LV cavity into basal and apical portions. Hyperdynamic radial contractility and a focal narrowing of the LV cavity (often due to papillary muscle hypertrophy / displacement) form a constricting muscular ring at the point of the dynamic cavity division. High intracavitary pressure gradients can form across the mid-cavity obstruction, and an apical LV aneurysm may develop and progressively enlarge. Larger LV apical aneurysms with scars are associated with increased risks of HF, ventricular arrhythmia and thromboembolic event
• HCM, HF, LV, LVOT, MMI, SAM
• Cardiology, Medical imaging, Pathology
• https://doi.org…3/ehjci/jeaf282