| Japanese |
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| Title | BioZ. comTMを用いた胸郭インピーダンス法による心拍出量測定は心臓手術に有効か? |
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| Subtitle | 原著 |
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| Authors | 山下幸一*, 横山武志*, 阿部秀宏*, 北岡智子*, 西山友貴**, 真鍋雅信* |
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| Authors(kana) | |
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| Organization | *高知大学医学部医学科器官制御学講座麻酔・救急・災害医学教室, **東京大学大学院医学系研究科外科学専攻生体管理医学講座麻酔学教室 |
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| Journal | 循環制御 |
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| Volume | 24 |
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| Number | 4 |
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| Page | 371-373 |
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| Year/Month | 2003/ |
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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」胸郭インピーダンス法を用いた心拍出量測定は, 非侵襲的かつ1心拍ごとの測定が可能であるなど, その有用性は高い. しかし, 胸郭のインピーダンスが外的な要因で変化する場合, 必ずしも心拍出量を正確に反映しない可能性がある. そこで今回, 心臓手術時に胸郭インピーダンス法と肺動脈カテーテル法による心拍出量測定を比較検討した. 胸郭インピーダンス法による心拍出量は手術前後いずれの時期にも肺動脈カテーテル法による心拍出量と良い相関は認められなかった. 従って心臓手術の周術期管理には役立たないことが示唆された. |
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| Practice | 基礎医学・関連科学 |
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| Keywords | Thoracic electrical bioimpedance, Cardiac surgery, Thermodilution catheter, Non-invasive measurement |
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| English |
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| Title | Is the Thoracic Electrical Bioimpedance Method by the BioZ. comTM Useful to Measure Cardiac Output in Cardiac Surgery? |
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| Subtitle | |
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| Authors | Koichi Yamashita*, Takeshi Yokoyama*, Hidehiro Abe*, Noriko Kitaoka*, Tomoki Nishiyama**, Masanobu Manabe* |
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| Authors(kana) | |
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| Organization | *Department of Anesthesiology and Critical Care Medicine, Kochi Medical School, **Department of Anesthesiology, Faculty of Medicine, The University of Tokyo |
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| Journal | Circulation Control |
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| Volume | 24 |
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| Number | 4 |
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| Page | 371-373 |
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| Year/Month | 2003/ |
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| Article | Original article |
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| Publisher | Japan Society of Circulation Control |
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| Abstract | Purpose;The thoracic bioimpedance method(TBI)is thought to be useful to measure cardiac output continuously and non-invasively. In this study, the usefulness of TBI using BioZ. comTM(CardioDynamics Intemational Corp. )in cardiac surgery was examined in comparison with continuous thermodilution methods(CCO)using VigilanceTM(Edwards Lifesciences LLC). Methods;Cardiac output was continuously measured by both TBI and CCO in 10 patients(ASA risk II)undergoing elective coronary artery bypass grafting. Data were collected(1)after intubation but before incision;(2)after surgery;and(3)12hrs after surgery, when hemodynamics were stable. Results;Cardiac output measured by TBI and CCO were ranging(1)1.7 to 2.3l・min-1・kg-1 and 1.0 to 2.7l・min-1・kg-1, (2)1.1 to 3.1l・min-1・kg-1 and 1.9 to 4.0l・min-1・kg-1, (3)1.7 to 3.1l・min-1・kg-1 and 2.3 to 3.9l・min-1・kg-1, respectively. And, correlations between cardiac output measured by TBI(Y)and CCO(X)were(1)y=0.891 + 0.408x;r=0.366, (2)y=0.771 + 0.478x;r=0.559, and(3)y=0.592 + 1.057x;r=0.573. Conclusions;In cardiac surgery, TBI might be useless to measure cardiac output because it did not have a good correlation with CCO. |
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| Practice | Basic medicine |
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| Keywords | Thoracic electrical bioimpedance, Cardiac surgery, Thermodilution catheter, Non-invasive measurement |
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