徳島大学 教育・研究者情報データベース(EDB)

1. 徳島大学.医学部.医学科.病態情報医学講座
2. 徳島大学.医学部.附属病院(〜2003年9月30日/->組織[徳島大学.病院.医科診療部門])

1. 川人 伸次([徳島大学.大学院医歯薬学研究部.歯学域.口腔科学部門.臨床歯学系.歯科麻酔科学])

   役割	任意
   貢献度	任意
   学籍番号	推奨

2. 北畑 洋

   役割	任意
   貢献度	任意
   学籍番号	推奨

3. 田中 克哉([徳島大学.大学院医歯薬学研究部.医学域.医科学部門.外科系.麻酔・疼痛治療医学]/[徳島大学.病院.診療科.脳·神経·精神科])

   役割	任意
   貢献度	任意
   学籍番号	推奨

4. 野﨑 淳平

   役割	任意
   貢献度	任意
   学籍番号	推奨

5. 大下 修造

   役割	任意
   貢献度	任意
   学籍番号	推奨

(英) Dynamic QRS-complex and ST-segment monitoring by continuous vectorcardiography during carotid endarterectomy.

(英) Many authors report a high incidence of cardiac events during carotid endarterectomy. The aim of the present study was to evaluate the usefulness of dynamic continuous on-line vectorcardiography for monitoring the occurrence of myocardial ischaemia during carotid endarterectomy. We studied 21 patients undergoing carotid endarterectomy. Patients underwent general anaesthesia with isoflurane or sevoflurane. The vectorcardiogram was monitored continuously during carotid endarterectomy. Electrodes were placed according to the previously described lead system and connected to a computerized system for on-line vectorcardiography. Two trend variables were recorded: the QRS vector difference, which reflects changes in the shape of the QRS complex; and the ST vector magnitude, which represents deflection of the ST segment from the isoelectric level. The ST segment deflection was measured 60 ms after termination of the QRS complex. Vectorcardiography was successfully recorded in all 21 patients. Three patients showed intraoperative vectorcardiogram abnormalities. In one of these three patients, both ST vector magnitude and QRS vector difference increased after induction of anaesthesia and ST vector magnitude returned to baseline after administration of nitroglycerin. In the other two patients, both ST vector magnitude and QRS vector difference gradually increased after cross-clamping of the internal carotid artery and ST vector magnitude returned to baseline after unclamping. QRS vector difference remained elevated for several hours in all three patients. Monitoring ST vector magnitude and QRS vector difference by vectorcardiography may be useful for identifying myocardial ischaemia during carotid endarterectomy.

1. (英) Aged
2. (英) Anesthesia, General
3. (英) Endarterectomy, Carotid
4. (英) Female
5. (英) Humans
6. (英) Intraoperative Complications
7. (英) Male
8. (英) Middle Aged
9. (英) Monitoring, Intraoperative
10. (英) Myocardial Ischemia
11. (英) Vectorcardiography

1. (英) Article.Affiliation: Department of Anesthesiology, Tokushima University School of Medicine, 3-18-15 Kuramoto, Tokushima 770-8503, Japan. kawahito@clin.med.tokushima-u.ac.jp

2. (英) Article.PublicationTypeList.PublicationType: Evaluation Studies

3. (英) Article.PublicationTypeList.PublicationType: Journal Article