Closed-loop feedback computer-controlled infusion of phenylephrine for maintaining blood pressure during spinal anaesthesia for caesarean section: a preliminary descriptive study
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摘要We describe the novel use of a closed-loop feedback computer-controlled infusion of phenylephrine for maintaining blood pressure in 53 patients having spinal anaesthesia for elective caesarean section. A simple on-off algorithm was used that activated an intravenous phenylephrine infusion at 100 mu g.min(-1) when systolic blood pressure was less than or equal to baseline and stopped the infusion when systolic blood pressure exceeded baseline. Up to uterine incision, 94.6% of all systolic blood pressure measurements were within the range (baseline +/- 20%). Seven patients (13.2%) had one or more episodes of hypotension (systolic blood pressure < 80% of baseline) and 23 patients (37.7%) had one or more episodes of hypertension (systolic blood pressure > 120% of baseline). No patient had nausea or vomiting and in no case was umbilical arterial blood pH < 7.2. Calculated system performance parameters were comparable with those of previously published closed-loop systems and provide a reference for the potential development and comparison of more advanced algorithms.
著者Kee WDN, Tam YH, Khaw KS, Ng FF, Critchley LA, Karmakar MK
會議名稱66th National Scientific Congress of the Australian-Society-of-Anaesthetists
會議開始日01.09.2007
會議地點Perth
期刊名稱Anaesthesia
詳細描述The Association of Anaesthetists for Great Britain and Ireland.
出版年份2007
月份12
日期1
卷號62
期次12
出版社BLACKWELL PUBLISHING
頁次1251 - 1256
國際標準期刊號0003-2409
電子國際標準期刊號1365-2044
語言英式英語
Web of Science 學科類別Anesthesiology; ANESTHESIOLOGY

上次更新時間 2020-24-11 於 01:04