Japanese
Title経食道パルスドプラ法による肺静脈血流波形の検討
Subtitle原著
Authors赤松繁*, 寺澤悦司*, 加川憲作**, 上松治孝*, 山本道雄*
Authors(kana)
Organization*岐阜大学医学部麻酔学教室, **岐阜大学医学部第2内科学教室
Journal循環制御
Volume10
Number4
Page635-640
Year/Month1989/
Article原著
Publisher日本循環制御医学会
Abstract「要旨」経食道ドプラ心エコー図法を用いて肺静脈血流動態の検討を行った. 肺静脈血流は経食道カラードプラ法で容易に描出された. 経食道パルスドプラ法により肺静脈左房接合部で得られた肺静脈血流波形は, 心室収縮期の1〜2相性の順行波(S波), 心室拡張期の順行波(D波)と心房収縮期の逆行波(A波)よりなる3〜4相性の波形であった. S波は心房の弛緩に伴う左房への流入波と心室収縮に伴う心房の伸展による流入波, D波は急速流入期の左室拡張に伴う流入波, A波は心房収縮により左房から肺静脈に向かう逆流波に由来すると思われた. 加齢に伴いD波の最高流速PFVdは低下, S波とD波の最高流速の比PFV(S/D)は上昇する傾向があった. これらの結果は肺静脈血流動態に対する左室拡張能の関与を示唆するものと思われた.
Practice基礎医学・関連科学
KeywordsTransesophageal Doppler echocardiography, Pulmonary venous flow, Diastolic function
English
TitleAnalysis of pulmonary venous flow pattern by transesophageal pulsed Doppler echocardiography
Subtitle
AuthorsShigeru Akamatsu, Etsuji Terazawa, Kensaku Kagawa, Harutaka Uematsu, Michio Yamamoto
Authors(kana)
OrganizationDepartment of Anesthesiology and the Second Department of Internal Medicine Gifu University School of Medicine
JournalCirculation Control
Volume10
Number4
Page635-640
Year/Month1989/
ArticleOriginal article
PublisherJapan Society of Circulation Control
AbstractTo assess pulmonary venous flow dynamics, we analysed pulmonary venous flow pattern, obtained by transesophageal pulsed Doppler echocardiography. We studied 41 surgical patients with no history or physical evidence of cardiac disorders under general anesthesia. In all cases pulmonary venous flow was easily identified by transesophageal color Doppler echocardiography. Pulmonary venous flow pattern, which was obtained clearly in 85% (35/41) of the patients by transesophageal pulsed Doppler echocardiography, was tri or quadriphasic：the first wave, which was often biphasic in elder patient, occurred during ventricular systole (S wave) ; the second wave occurred in diastole during the rapid ventricular filling phase of mitral flow (D wave)：the third wave was reverse flow toward the pulmonary vein during atrial contraction (A wave). The reduction in left atrial pressure, that results from the relaxation of atrium and downward movement of mitral valve caused by the contraction of left ventricle, is responsible for S wave. Left ventricular relaxation and rapid emptying of left atrium initiate D wave. Atrial contraction results in a rise in left atrial pressure and it is responsible for A wave. S wave tended to be biphasic with aging. Peak flow velocity of D wave was correlated with patients' age (r=-0.51, p<0.01) and decreased with aging. The ratio of peak flow velocity of S wave to that of D wave was correlated with age (r=0.55, p<0.001) and increased with aging. These data suggest pulmonary venous flow dynamics relate to left ventricular diastolic function.
PracticeBasic medicine
KeywordsTransesophageal Doppler echocardiography, Pulmonary venous flow, Diastolic function

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