当前位置： SCI文献检索 > ANESTHESIA AND ANALGESIA期刊下所有文献 > Effects of end-tidal gas monitoring and flow rates on hemodynamic stability and recovery profiles.

Effects of end-tidal gas monitoring and flow rates on hemodynamic stability and recovery profiles.

Abstract：

:This study was designed to evaluate the impact of routine end-tidal anesthetic gas monitoring on the intraoperative hemodynamic stability and early recovery profile in 253 consenting ASA physical status I-III patients undergoing elective otolaryngologic procedures with isoflurane or enflurane anesthesia. Patients were randomly assigned to one of six treatment groups: Group I, monitored high-flow isoflurane; Group II, unmonitored high-flow isoflurane; Group III, monitored low-flow isoflurane; Group IV, unmonitored low-flow isoflurane; Group V, monitored low-flow enflurane; or Group VI, unmonitored low-flow enflurane. After a standardized induction sequence, anesthesia was maintained by administering variable concentrations of isoflurane or enflurane in an air/oxygen mixture at two different total gas flow rates (0.7 L/min or 3.5 L/min, respectively). Mean arterial pressure (MAP), heart rate (HR), and end-tidal (ET) anesthetic concentrations were recorded by a computer throughout the operation. The resident anesthesiologist was instructed to maintain an adequate "depth of anesthesia" by varying the administration of isoflurane (Groups I-IV) or enflurane (Groups V and VI) with or without end-tidal gas monitoring. Intraoperative hemodynamic stability was assessed in each patient and reported as the average error from the preincisional (baseline) MAP, average absolute error from the baseline MAP, coefficients of variation for HR, systolic, diastolic, and MAP values, and ET anesthetic concentrations. Recovery times from discontinuation of the volatile drug until awakening, following commands, and postanesthesia care unit (PACU) discharge were recorded. The six study groups had similar intraoperative MAP and HR values, coefficients of variation, and numbers of episodes of hypertension, hypotension, tachycardia, and bradycardia.(ABSTRACT TRUNCATED AT 250 WORDS)

journal_name

Anesth Analg

journal_title

Anesthesia and analgesia

authors

Wang J,Liu J,White PF,Klein KW,Browne RH

doi

10.1213/00000539-199409000-00023

subject

Has Abstract

pub_date

1994-09-01 00:00:00

pages

538-44

issue

eissn

0003-2999

issn

1526-7598

journal_volume

pub_type

临床试验,杂志文章,随机对照试验

在线工具

Effects of end-tidal gas monitoring and flow rates on hemodynamic stability and recovery profiles.