Biphasic Pulmonary Regurgitation

Moukarbel, George V.; Shah, Amil M.; Tinnemore, Amanda; Mora, Samia

doi:10.1111/j.1540-8175.2008.00877.x

Cited by 2 publications

(1 citation statement)

References 10 publications

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“…Kisanuki et al (1987) reported three cases with a late diastolic PA forward flow thought to be caused by decreased RV compliance and highly elevated RVEDP. Moukarbel et al (2009) described a case with a biphasic PR flow velocity pattern having a deep dip at the timing of the atrial contraction.…”

Section: The Reason Why the Epadp Prea Was More Accurate Than The Epamentioning

confidence: 99%

Usefulness of the Continuous-Wave Doppler-Derived Pulmonary Arterial–Right Ventricular Pressure Gradient Just before Atrial Contraction for the Estimation of Pulmonary Arterial Diastolic and Wedge Pressures

Murayama

Mikami

Kaga

et al. 2017

Ultrasound in Medicine & Biology

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In our new echocardiographic method, pulmonary regurgitant velocity immediately before right atrial (RA) contraction is used to estimate pulmonary artery diastolic pressure (PADP) and mean PA wedge pressure (MPAWP). Our aim here was to compare the usefulness of this new method with that of the conventional method, which uses pulmonary regurgitant velocity at end diastole. We studied 55 consecutive patients who underwent echocardiography and right-sided heart catheterization. The pulmonary regurgitant velocities just before RA contraction and at end diastole were measured to obtain echocardiographic estimates of PADP (EPADP and EPADP, respectively) by adding the pressure gradients to the echocardiographically estimated RA pressure. Compared with EPADP, EPADP correlated better with PADP (r = 0.87) and MPAWP (r = 0.80), and direct fixed biases were detected for EPADP but not for EPADP. The area under the receiver operating characteristic curve distinguishing patients with MPAWP ≥18 mm Hg was greater for EPADP (0.97) than for E/e' (0.94) and E/A (0.83). EPADP is thus useful in estimating PADP and MPAWP in patients with heart disease.

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Section: The Reason Why the Epadp Prea Was More Accurate Than The Epamentioning

confidence: 99%

Usefulness of the Continuous-Wave Doppler-Derived Pulmonary Arterial–Right Ventricular Pressure Gradient Just before Atrial Contraction for the Estimation of Pulmonary Arterial Diastolic and Wedge Pressures

Murayama

Mikami

Kaga

et al. 2017

Ultrasound in Medicine & Biology

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Pathophysiology of the aortic regurgitation Doppler signal end‐diastolic notching: “A‐dip insight”

2020

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A 76‐year‐old man was admitted to the hospital with symptoms of severe decompensated heart failure. Initial echocardiogram showed normal left ventricular (LV) ejection fraction, grade II diastolic dysfunction, and mild‐to‐moderate aortic regurgitation. The aortic regurgitant Doppler signal exhibited an end‐diastolic notching, called an A‐dip. After intravenous diuretic therapy and 3 kg weight loss, a new echocardiogram was performed showing a grade I diastolic dysfunction and complete abolishment of the A‐dip. Aortic A‐dip is a rare finding denoting increased LV filling pressures. Conditions that favor its occurrence are increased LV stiffness, low diastolic blood pressure, and preserved left atrial contractility.

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Biphasic Pulmonary Regurgitation

Cited by 2 publications

References 10 publications

Usefulness of the Continuous-Wave Doppler-Derived Pulmonary Arterial–Right Ventricular Pressure Gradient Just before Atrial Contraction for the Estimation of Pulmonary Arterial Diastolic and Wedge Pressures

Usefulness of the Continuous-Wave Doppler-Derived Pulmonary Arterial–Right Ventricular Pressure Gradient Just before Atrial Contraction for the Estimation of Pulmonary Arterial Diastolic and Wedge Pressures

Pathophysiology of the aortic regurgitation Doppler signal end‐diastolic notching: “A‐dip insight”

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