Document Detail

Myocardial ischaemia during tracheal extubation in patients after cardiac surgery: an observational study.
MedLine Citation:
PMID:  9771316     Owner:  NLM     Status:  MEDLINE    
This study examines whether there is a temporal relationship between tracheal extubation and myocardial ischaemia in haemodynamically stable patients extubated within 6 h of cardiac surgery. Fifty-two patients were studied during three time periods: 1, from 2 h until 30 min before extubation (90 min); 2, from 30 min before until 30 min after extubation (60 min); 3, from 30 min until 2 h after extubation (90 min). Significant ST segment changes were defined as a reversible ST segment depression of 2 mm or greater or an elevation of 3 mm or greater from baseline, lasting for 1 min or more. Fourteen patients (26.9%) had ST segment changes. The ischaemic burden in periods 2 and 3 was increased compared with that in period 1; the mean (SD) was: period 1, 19.2 (18.8) min; period 2, 35.4 (24.9) min; period 3, 39.6 (24.5) min; however, the mean ST deviation (mm) did not change. ST segment changes were associated with an increased heart rate; they were not related to arterial pressure. We conclude that there is a temporal relationship between ST segment changes and tracheal extubation after cardiac surgery.
N J Barham; O W Boomers; K M Sherry; T J Locke
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  British journal of anaesthesia     Volume:  80     ISSN:  0007-0912     ISO Abbreviation:  Br J Anaesth     Publication Date:  1998 Jun 
Date Detail:
Created Date:  1998-10-21     Completed Date:  1998-10-21     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0372541     Medline TA:  Br J Anaesth     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  832-3     Citation Subset:  IM    
Department of Anaesthesia, Northern General Hospital Trust, Sheffield.
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MeSH Terms
Blood Pressure
Coronary Vessels / surgery*
Heart Rate
Intubation, Intratracheal / adverse effects*
Middle Aged
Myocardial Ischemia / etiology*
Postoperative Care / adverse effects*
Postoperative Period
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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