| Japanese |
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| Title | 経食道パルスドプラ法による左房と左室の流入動態の対比検討 |
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| Subtitle | 原著 |
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| Authors | 赤松繁*, 寺澤悦司*, 加川憲作**, 荒川迪生**, 土肥修司*, 山本道雄*** |
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| Authors(kana) | |
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| 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, ***東海大学医学部麻酔学教室 |
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| Journal | 循環制御 |
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| Volume | 12 |
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| Number | 4 |
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| Page | 711-719 |
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| Year/Month | 1991/ |
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| Article | 原著 |
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| Publisher | 日本循環制御医学会 |
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| Abstract | 「要旨」左心の充満動態を明確にするために, 経食道パルスドプラ法を用いて肺静脈血流速波形と左室流入血流速波形より左房と左室の流入動態を対比検討した. 左房流入動態の指標としては肺静脈血流速波形の心室収縮期波(S波), 心室拡張期波(D波)の最大流速S, D, およびSとDの比S/D, S波とD波の流速時間積分値(Velocity-Time Integral)の比S area/D areaを求め, 左室流入動態の指標としては左室流入血流速波形から拡張早期流入波(R波)と心房収縮期流入波(A波)の最大流速R, A, その比A/R, R波とA波の流速時間積分値の比A area/R areaを求めた. 左房流入動態の指標S/D, S area/D areaと左室流入動態の指標AIR, A area/R areaとの間には相関関係が認められ, 左房流入動態には, 左室流入動態と同様に左室拡張能が関与していることが明らかとなった. また経食道パルスドプラ法で肺静脈血流速波形を観察することにより, 麻酔・手術中の左室拡張能を評価できると思われた. これは術中の心筋虚血の早期診断のモニターとして役立つ可能性が示唆される. |
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| Practice | 基礎医学・関連科学 |
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| Keywords | Pulmonary venous flow, Left ventricular diastolic function, Transesophageal Doppler echocardiography |
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| English |
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| Title | Relation of pulmonary venous flow dynamics to left ventricular filling dynamics. ; A study by transesophageal pulsed Doppler echocardiography. |
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| Authors | Shigeru Akamatsu, Etsuji Terazawa, Kensaku Kagawa, Michio Arakawa, Shuji Dohi, Michio Yamamoto |
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| Authors(kana) | |
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| Organization | Department of Anesthesiology and the Second Department of Internal Medicine Gifu University School of Medicine |
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| Journal | Circulation Control |
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| Volume | 12 |
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| Number | 4 |
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| Page | 711-719 |
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| Year/Month | 1991/ |
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| Article | Original article |
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| Publisher | Japan Society of Circulation Control |
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| Abstract | To assess the relationship between pulmonary venous flow dynamics and left ventricular filling dynamics, we studied 34 ASA Physical Status 1 patients with transesophageal Doppler echocardiography under general anesthesia. Peak flow velocities of ventricular systolic and diastolic waves (S, D), the ratio of S to D (S/D), and the ratio of the velocity-time integral of ventricular systolic wave to that of diastolic wave (S area/D area) were measured from pulmonary venous flow velocity pattern. Peak flow volocities in atrial contraction phase and in rapid filling phase (A, R), the ratio of A to R (AIR) and the ratio of the velocity-time integral of the wave in atrial contraction phase to that in rapid filling phase (A area/R area) were measured from transmitral flow velocity pattern. Then, we examined the relationship between the variables from pulmonary venous flow and the variables from transmitral flow. There were good correlations between S/D and AIR (r=0.58, p<0.001), between S area/D area and A/R (r=0.79, p<0.001), and between S area/D area and A area/R area (r=0.67, p<0.001). These results indicate that pulmonary venous flow dymanics is influenced to a certain degree by left ventricular filling dynamics. We conclude that left ventrticular diastolic function affects not only left ventricular filling dynamics but also left atrial filling dynamics. |
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| Practice | Basic medicine |
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| Keywords | Pulmonary venous flow, Left ventricular diastolic function, Transesophageal Doppler echocardiography |
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