Abstract:
STUDY OBJECTIVE:To characterize respiratory dynamics during emergence from propofol-remifentanil anesthesia using noninvasive respiratory inductance plethysmography (RIP). DESIGN:Observational pilot study. SETTING:Operating room in a university-affiliated teaching hospital. PATIENTS:50 ASA physical status 1, 2, and 3 patients scheduled for microdirect laryngoscopy or bronchoscopy using total intravenous anesthesia (TIVA) with high-frequency jet ventilation. INTERVENTIONS:Patients were fitted with plethysmography bands around the chest and abdomen prior to induction. Following completion of surgery in patients undergoing brief airway procedures using propofol-remifentanil general anesthesia, the anesthetic infusions were stopped and ventilation suspended until resumption of spontaneous ventilation or desaturation below 90%. During this period of apnea, abdominal and thoracic girth was assessed with noninvasive RIP. MEASUREMENTS:Cross-sectional area of the thorax and abdomen during emergence were measured. MAIN RESULTS:Useful data were obtained from 41 patients, with stable apnea lasting 404 ± 193.1 seconds; of these, 34 exhibited a slow and significant decrease in abdominal girth over a period of 267.8 ± 128.5 seconds. Resumption of spontaneous ventilation generally coincided with the end of this abdominal relaxation. CONCLUSION:Slow expiration is the initial step in the resumption of spontaneous ventilation during apnea induced with TIVA using propofol-remifentanil.
journal_name
J Clin Anesthjournal_title
Journal of clinical anesthesiaauthors
Atkins JH,Mandel JEdoi
10.1016/j.jclinane.2012.06.025subject
Has Abstractpub_date
2013-03-01 00:00:00pages
106-9issue
2eissn
0952-8180issn
1873-4529pii
S0952-8180(13)00011-1journal_volume
25pub_type
杂志文章abstract:STUDY OBJECTIVE:To evaluate the effect of clonidine when added to local anesthetics on duration of postoperative analgesia during retrobulbar block. DESIGN:Prospective, randomized controlled trial. SETTING:Operating room and Postanesthesia Care Unit of a university-affiliated hospital. SUBJECTS:80 ASA physical statu...
journal_title:Journal of clinical anesthesia
pub_type: 杂志文章,随机对照试验
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abstract::Horner syndrome is considered a common finding after epidural analgesia or anesthesia in obstetric patients. Conversely, Horner syndrome is very uncommon in nonobstetric patients. We report 2 cases of Horner syndrome after attempted epidural lumbar anesthesia in 2 patients undergoing peripheral vascular surgery. Spina...
journal_title:Journal of clinical anesthesia
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journal_title:Journal of clinical anesthesia
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journal_title:Journal of clinical anesthesia
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journal_title:Journal of clinical anesthesia
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journal_title:Journal of clinical anesthesia
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journal_title:Journal of clinical anesthesia
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journal_title:Journal of clinical anesthesia
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journal_title:Journal of clinical anesthesia
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journal_title:Journal of clinical anesthesia
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更新日期:2021-02-01 00:00:00