TY - JOUR
T1 - Quantitative and pattern analyses of continuous-wave doppler-derived pulmonary regurgitant flow velocity for the diagnosis of constrictive pericarditis
AU - Kaga, Sanae
AU - Mikami, Taisei
AU - Takamatsu, Yuka
AU - Abe, Ayumu
AU - Okada, Kazunori
AU - Nakabachi, Masahiro
AU - Nishino, Hisao
AU - Yokoyama, Shinobu
AU - Nishida, Mutsumi
AU - Shimizu, Chikara
AU - Iwano, Hiroyuki
AU - Yamada, Satoshi
AU - Tsutsui, Hiroyuki
N1 - Publisher Copyright:
© 2014 American Society of Echocardiography.
PY - 2014/11/1
Y1 - 2014/11/1
N2 - Methods Fifteen patients with CP, 18 patients with restrictive cardiomyopathy, and 20 normal subjects were studied retrospectively. Using continuous-wave Doppler echocardiography, pulmonary regurgitation velocities were measured at the early diastolic peak (VMAx), mid-diastolic inflection point (VIFL), and late diastolic minimal point (VMIN).Results VIFL, VIFL/VMAx, VMIN, and VMIN/VMAx were significantly lower in the CP group compared with the restrictive cardiomyopathy and normal groups. Prevalence rates of patients with early mid-diastolic inflection, VIFL/VMAx < 0.5, VMIN < 50 cm/sec, and VMIN/VMAx < 0.33 were significantly greater in the CP group compared with the other groups. Sensitivity and specificity for the diagnosis of CP were 93% and 74%, respectively, for the presence of early mid-diastolic inflection, 73% and 100% for VIFL/VMAx < 0.5, 73% and 97% for VMIN < 50 cm/sec, and 93% and 92% for VMIN/VMAx < 0.33.Background Many echocardiographic features of constrictive pericarditis (CP) have been reported, but each alone has a limitation either in sensitivity or in specificity. Continuous-wave Doppler-derived flow velocity of pulmonary regurgitation can reflect the diastolic right ventricular pressure pattern characteristic of CP and be useful for its detection.Conclusions The quantitative and pattern analyses of continuous-wave Doppler-derived pulmonary regurgitation velocity could enhance the accuracy of echocardiographic detection of CP.
AB - Methods Fifteen patients with CP, 18 patients with restrictive cardiomyopathy, and 20 normal subjects were studied retrospectively. Using continuous-wave Doppler echocardiography, pulmonary regurgitation velocities were measured at the early diastolic peak (VMAx), mid-diastolic inflection point (VIFL), and late diastolic minimal point (VMIN).Results VIFL, VIFL/VMAx, VMIN, and VMIN/VMAx were significantly lower in the CP group compared with the restrictive cardiomyopathy and normal groups. Prevalence rates of patients with early mid-diastolic inflection, VIFL/VMAx < 0.5, VMIN < 50 cm/sec, and VMIN/VMAx < 0.33 were significantly greater in the CP group compared with the other groups. Sensitivity and specificity for the diagnosis of CP were 93% and 74%, respectively, for the presence of early mid-diastolic inflection, 73% and 100% for VIFL/VMAx < 0.5, 73% and 97% for VMIN < 50 cm/sec, and 93% and 92% for VMIN/VMAx < 0.33.Background Many echocardiographic features of constrictive pericarditis (CP) have been reported, but each alone has a limitation either in sensitivity or in specificity. Continuous-wave Doppler-derived flow velocity of pulmonary regurgitation can reflect the diastolic right ventricular pressure pattern characteristic of CP and be useful for its detection.Conclusions The quantitative and pattern analyses of continuous-wave Doppler-derived pulmonary regurgitation velocity could enhance the accuracy of echocardiographic detection of CP.
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U2 - 10.1016/j.echo.2014.07.002
DO - 10.1016/j.echo.2014.07.002
M3 - Article
C2 - 25096415
AN - SCOPUS:84914094150
SN - 0894-7317
VL - 27
SP - 1223
EP - 1229
JO - Journal of the American Society of Echocardiography
JF - Journal of the American Society of Echocardiography
IS - 11
ER -