Use of Valsalva maneuver to unmask left ventricular diastolic function abnormalities by Doppler echocardiography in patients with coronary artery disease or systemic hypertension

Effect of the Valsalva manoeuver on diastolic filling indices in patients with essential hypertension

“…8,9,[17][18][19] The difference from normal individuals is the appearance of an abnormal flow pattern either at the beginning or at the end of the preload alteration. Effect of loading conditions on transmitral flow in hypertensive individuals has been investigated in a limited number of studies.…”

“…Effect of loading conditions on transmitral flow in hypertensive individuals has been investigated in a limited number of studies. [19][20][21][22] Various comments exist about their findings again. Some observed no change or even an increase in atrial filling velocity and a fall in E to A ratio; other studies showed a decrease in peak A velocity where E to A ratio did not change significantly.…”

Echocardiographic evaluation of diastolic heart failure

“…During myocardial ischemia or HF, there is slowing of the LV base to apical flow propagation 60 , 61 . A Vp > 50 cm/s is considered normal 62 while a value < 45 cm/s in patients > 30 years is consistent with DD 63 .…”

The Quebec Heart Institute: 50 years of excellence in cardiology

“…Nevertheless, all congenital heart surgeries continued to be performed at the Institute. Despite the increased clinical workload, this was the period of innovation and landmark studies on cardiac valve surgery and echocardiographic assessments (13)(14)(15)(16)(17), highlighting the value and limitations of valve replacements, tissue valves, mechanical valves and prosthetic valve mismatches (18)(19)(20)(21). During this period, the Ross procedure was adopted at the Institute, and subsequently the Institute became a pioneer of this surgical procedure in Canada (22,23).…”