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Standardised pre-hospital care of acute myocardial infarction patients: MISSION! guidelines applied in practice.

Authors
  • Atary, J Z1
  • de Visser, M
  • van den Dijk, R
  • Bosch, J
  • Liem, S S
  • Antoni, M L
  • Bootsma, M
  • Viergever, E P
  • Kirchhof, C J
  • Padmos, I
  • Sedney, M I
  • van Exel, H J
  • Verwey, H F
  • Atsma, D E
  • van der Wal, E E
  • Jukema, J W
  • Schalij, M J
  • 1 Department of Cardiology, Leiden University Medical Center, Leiden, the Netherlands. , (Netherlands)
Type
Published Article
Journal
Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation
Publication Date
Sep 01, 2010
Volume
18
Issue
9
Pages
408–415
Identifiers
PMID: 20862235
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Background. To improve acute myocardial infarction (AMI) care in the region 'Hollands-Midden' (the Netherlands), a standardised guideline-based care program was developed (MISSION!). This study aimed to evaluate the outcome of the pre-hospital part of the MISSION! program and to study potential differences in pre-hospital care between four areas of residency.Methods. Time-to-treatment delays, AMI risk profile, cardiac enzymes, hospital stay, in-hospital mortality, and pre-AMI medication was evaluated in consecutive AMI patients (n=863, 61±13years, 75% male) transferred to the Leiden University Medical Center for primary percutaneous coronary intervention (PCI).Results. Median time interval between onset of symptoms and arrival at the catheterisation laboratory was 150 (interquartile range [IQR] 101-280) minutes. The alert of emergency services to arrival at the hospital time was 48 (IQR 40-60) minutes and the door-to-catheterisation laboratory time was 23 (IQR 13-42) minutes. Despite significant regional differences in ambulance transportation times no difference in total time from onset of symptoms to arrival at the catheterisation room was found. Peak troponin T was 3.33 (IQR 1.23-7.04) μg/l, hospital stay was 2 (IQR 2-3) days and in-hospital mortality was 2.3%. Twelve percent had 0 known risk factors, 30% had one risk factor, 45% two to three risk factors and 13% had four or more risk factors. No significant differences were observed for AMI risk profiles and medication pre-AMI. Conclusions. This study shows that a standardised regional AMI treatment protocol achieved optimal and uniformly distributed pre-hospital performance in the region 'Hollands-Midden', resulting in minimal time delays regardless of area of residence. Hospital stay was short and in-hospital mortality low. Of the patients, 88% had ≥1 modifiable risk factor. (Neth Heart J 2010;18:408-15.).

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