Document Detail


Outcome of primary angioplasty for acute myocardial infarction during routine duty hours versus during off-hours.
MedLine Citation:
PMID:  12821237     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVES: We sought to investigate the impact of circadian patterns in the onset of acute myocardial infarction (AMI) on the practice of primary angioplasty. BACKGROUND: A circadian variation in the time of onset of AMI with a peak in the morning hours has been described. METHODS: We studied 1,702 consecutive patients with acute ST-segment elevation myocardial infarction treated with primary angioplasty. We observed circadian variation in frequency of symptom onset, hospital admission, and first balloon inflation. Circadian patterns of symptom onset, hospital admission, and balloon inflation are similar. RESULTS: A majority of patients have symptom onset (53%), hospital admission (53%), and first balloon inflation (52%) during routine duty hours (0800 to 1800 h). There were no differences in baseline clinical characteristics or treatment delays between routine duty hours and off-hours patients. Hospital admission between 0800 and 1800 was associated with an angioplasty failure rate of 3.8%, compared with 6.9% between 1800 and 0800, p < 0.01. Thirty-day mortality was 1.9% in patients with hospital admission between 0800 and 1800, compared with 4.2% in patients with hospital admission between 1800 and 0800, p < 0.01. CONCLUSIONS: Circadian variations may have a profound effect on the practice of primary angioplasty. A majority of patients are treated during routine duty hours. Patients treated during off-hours have a higher incidence of failed angioplasty and consequently a worse clinical outcome than patients treated during routine duty hours.
Authors:
Jose P S Henriques; Arnout P Haasdijk; Felix Zijlstra;
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the American College of Cardiology     Volume:  41     ISSN:  0735-1097     ISO Abbreviation:  J. Am. Coll. Cardiol.     Publication Date:  2003 Jun 
Date Detail:
Created Date:  2003-06-24     Completed Date:  2003-07-09     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8301365     Medline TA:  J Am Coll Cardiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2138-42     Citation Subset:  AIM; IM    
Affiliation:
Isala Klinieken, Hospital De Weezenlanden, Department of Cardiology, Zwolle, Netherlands.
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MeSH Terms
Descriptor/Qualifier:
After-Hours Care / statistics & numerical data*
Aged
Angioplasty, Transluminal, Percutaneous Coronary / statistics & numerical data*
Circadian Rhythm / physiology*
Female
Humans
Male
Middle Aged
Myocardial Infarction / mortality,  physiopathology*,  therapy*
Outcome Assessment (Health Care) / statistics & numerical data*
Patient Admission / statistics & numerical data
Physician's Practice Patterns / statistics & numerical data
Severity of Illness Index
Survival Rate
Time Factors
Treatment Failure
Comments/Corrections
Comment In:
J Am Coll Cardiol. 2003 Dec 17;42(12):2172; author reply 2172-3   [PMID:  14680753 ]
J Am Coll Cardiol. 2003 Dec 17;42(12):2172; author reply 2172-3   [PMID:  14680752 ]
J Am Coll Cardiol. 2003 Jun 18;41(12):2143-6   [PMID:  12821238 ]

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