Louis, French physician, 1875-1957. See: Gallavardin phenomenon.
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Clinical and special investigation features of aortic stenosis Aortic stenosis History Exertional dyspnoea Angina Syncope Physical findings Small-volume, slow-rising pulses Narrow pulse pressure JVP normal, unless heart failure or MV disease Pressure-loaded undisplaced apex beat Soft or single second heart sound Crescendo-decrescendo ejection systolic murmur at base of the heart Radiated to carotids Longer murmur = more severe High-pitched widely radiating murmur: Gallavardin effect--can be mistaken for MR Systolic click in bicuspid valve may be heard Special investigations ECG Left ventricular hypertrophy CXR Normal-sized heart (ventricle) Aortic calcification Post-stenotic dilatation: especially in bicuspid valves Table 4.
The accuracy of oscillometers was improved by the use of a double cuff, first suggested for use in blood pressure measurement by Amblard in 1908 and popularised by Gallavardin (2).
Gallavardin phenomenon is an AS murmur transmitted in an altered format the apex and easily mimics mitral regurgitation (MR).