Japanese |
Title | プロポフォールの再灌流不整脈に及ぼす影響 |
Subtitle | 原著 |
Authors | 小野稔*, 中村正人*, 楳田高士**, 田中一彦***, 古賀義久**** |
Authors(kana) | |
Organization | *市立貝塚病院麻酔科, **関西鍼灸短期大学, ***大阪薬科大学臨床薬剤学講座, ****近畿大学医学部麻酔科学教室 |
Journal | 循環制御 |
Volume | 23 |
Number | 2 |
Page | 153-157 |
Year/Month | 2002/ |
Article | 報告 |
Publisher | 日本循環制御医学会 |
Abstract | はじめに 心臓における再灌流障害とは, 低酸素環境におかれた心筋細胞が急激な再酸素化を受けることによって, かえって新たな細胞障害が生ずる現象である. 虚血心の血流再開後に生じる虚血再灌流不整脈も再灌流障害の代表例のひとつとして知られている1〜3). この虚血再灌流不整脈の発生原因については諸説があるが, 活性酸素の関与が成因のひとつとして重要視されており, 虚血再灌流不整脈発生の予防における活性酸素のスカベンジャーの効果が期待されている1,4). 一方, プロポフォールには過酸化水素に対するスカベンジャーとしての作用があることが報告されており, 虚血再灌流における活性酸素の関与の重要性からみてプロポフォールに虚血再灌流不整脈の予防薬としての効果が期待できると考えられる5). そこで, 著者らはラット摘出灌流心においてプロポフォールの虚血再灌流不整脈に及ぼす影響を明らかにする目的で本研究を行った. |
Practice | 基礎医学・関連科学 |
Keywords | Propofol, Arrhythmia, Reperfusion, Ischemia, Ventricular fibrillation |
English |
Title | Effects of Propofol on Reperfusion-induced Arrhythmia in the Isolated Rat Heart |
Subtitle | |
Authors | Minoru Ono*, Masato Nakamura*, Takashi Umeda**, Kazuhiko Tanaka***, Kazuhisa Koga**** |
Authors(kana) | |
Organization | *Department of Anesthesiology, Kaizuka City Hospital, **Kansai College of Oriental Medicine, ***Clinacal Phamacy and Clinical Pharmaceutical Sciences, Osaka University of Pharmaceutical Sciences, ****Department of Anesthesiology, Kinki University, School of Medicine |
Journal | Circulation Control |
Volume | 23 |
Number | 2 |
Page | 153-157 |
Year/Month | 2002/ |
Article | Report |
Publisher | Japan Society of Circulation Control |
Abstract | The effects of propofol on reperfusion-induced ventricular arrhythmia in the isolated perfused rat heart were investigated. Rat hearts were isolated and perfused with Krebs-Ringer's solution which contains various concentrations of propofol (0 (control), 1, 10, 25, or 50μM ; n=12 per group); each heart was subjected to regional ishemia (occlusion of left anterior descending coronary artery for 11 minutes) and three minutes of reperfusion (release of the ligation). Reperfusion-induced ventricular fibrillation (VF) occurred in all hearts, and the duration was 166±4(mean±SEM) seconds in the control group, however at 10, 25, and 50 μM, propofol reduced the incidence of VF (p<0.05 at 10, 25, and 50μM of propofol: respective incidences were 41.6%, 33.3% and 8.3%)and reduced the duration of VF (p<0.05 at 25, and 50μM of propofol, 15.5±14.5, 1.8±1.8 seconds, respectively). In the isolated rat heart, we found that propofol has antiarrhythmic effects against reperfusion-induced arrhythmia and that the inhibitory effects show dosedependent fashion. |
Practice | Basic medicine |
Keywords | Propofol, Arrhythmia, Reperfusion, Ischemia, Ventricular fibrillation |