pericardial knock

per·i·car·di·al knock

an early diastolic sound that is a variant of the third heart sound, but occurring distinctly earlier, due to rapid ventricular filling's being abruptly halted by the restricting pericardium; a true "knocking" quality is uncommon.

pericardial 'knock'

Cardiology A loud 3^rd heart sound occurring when the ventricular filling abruptly stops at the end of the early diastolic pressure dip–ie, at the end of the rapidly filling phase of the ventricles; classically associated with severe constrictive pericarditis, or with penetrating trauma to the pericardium, the PK has a relatively high pitch, often ↑ in intensity with inspiration and coincides with the nadir of the 'y' descent of the jugular venous pulse, resembling a premature 3^rd sound. Cf Gallop.

单词	pericardial knock
释义	DictionarySeepericardial pericardial knock per·i·car·di·al knock an early diastolic sound that is a variant of the third heart sound, but occurring distinctly earlier, due to rapid ventricular filling's being abruptly halted by the restricting pericardium; a true "knocking" quality is uncommon. pericardial 'knock' Cardiology A loud 3^rd heart sound occurring when the ventricular filling abruptly stops at the end of the early diastolic pressure dip–ie, at the end of the rapidly filling phase of the ventricles; classically associated with severe constrictive pericarditis, or with penetrating trauma to the pericardium, the PK has a relatively high pitch, often ↑ in intensity with inspiration and coincides with the nadir of the 'y' descent of the jugular venous pulse, resembling a premature 3^rd sound. Cf Gallop.
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