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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

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/70637

Title: 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
Authors: Murayama, Michito Browse this author
Mikami, Taisei Browse this author →KAKEN DB
Kaga, Sanae Browse this author
Okada, Kazunori Browse this author
Hioka, Takuma Browse this author
Masauzi, Nobuo Browse this author
Nakabachi, Masahiro Browse this author
Nishino, Hisao Browse this author
Yokoyama, Shinobu Browse this author
Nishida, Mutsumi Browse this author →KAKEN DB
Iwano, Hiroyuki Browse this author →KAKEN DB
Sakakibara, Mamoru Browse this author
Yamada, Satoshi Browse this author →KAKEN DB
Tsutsui, Hiroyuki Browse this author →KAKEN DB
Keywords: Continuous-wave Doppler echocardiography
Pulmonary regurgitation
Pulmonary arterial diastolic pressure
Pulmonary arterial wedge pressure
Right atrial contraction
Issue Date: May-2017
Publisher: Elsevier
Journal Title: Ultrasound in medicine and biology
Volume: 43
Issue: 5
Start Page: 958
End Page: 966
Publisher DOI: 10.1016/j.ultrasmedbio.2017.01.006
PMID: 28256342
Abstract: 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(preA) and EPADP(ED), respectively) by adding the pressure gradients to the echocardiographically estimated RA pressure. Compared with EPADP(ED), EPADP(preA) correlated better with PADP (r = 0.87) and MPAWP (r = 0.80), and direct fixed biases were detected for EPADP(ED) but not for EPADP(preA). The area under the receiver operating characteristic curve distinguishing patients with MPAWP > 18 mm Hg was greater for EPADP(preA) (0.97) than for E/e' (0.94) and E/A (0.83). EPADP(preA) is thus useful in estimating PADP and MPAWP in patients with heart disease.
Rights: © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
http://creativecommons.org/licenses/by-nc-nd/4.0/
Type: article (author version)
URI: http://hdl.handle.net/2115/70637
Appears in Collections:保健科学院・保健科学研究院 (Graduate School of Health Sciences / Faculty of Health Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
北海道大学病院 (Hokkaido University Hospital) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 村山 迪史

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