Invasive arterial blood pressure monitoring in an out-of-hospital setting: an observational study.
Emerg Med J
; 26(3): 210-2, 2009 Mar.
Article
em En
| MEDLINE
| ID: mdl-19234017
ABSTRACT
BACKGROUND:
Non-invasive arterial blood pressure measurement is often inaccurate in emergency unstable patients. A study was undertaken to assess the feasibility of out-of-hospital intra-arterial catheterisation in haemodynamically unstable patients and to evaluate the correlation between invasive and non-invasive arterial pressure values.METHODS:
In this prospective 2-year observational study conducted by mobile emergency medical units, the success rate of arterial catheterisation was calculated and blood pressure values measured invasively and non-invasively after successful catheterisation were compared.RESULTS:
94 patients were included. The success rate for catheterisation (44 radial access, 50 femoral access) was 86% (95% CI 79% to 93%). Bias and precision in invasive versus non-invasive comparisons were -0.1, 38 mm Hg for systolic pressure and 4.2, 27 mm Hg for diastolic pressure. Values differed by more than 20 mm Hg in over 40% of patients. Invasive measurement led to 79 changes in vasoactive treatment in 51 patients.CONCLUSION:
Emergency out-of-hospital invasive arterial blood pressure monitoring in haemodynamically unstable patients is highly feasible. Discrepancies between invasive and non-invasive measurements are common and highlight the value of early out-of-hospital monitoring.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Determinação da Pressão Arterial
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Cateterismo Periférico
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Serviços Médicos de Emergência
Tipo de estudo:
Diagnostic_studies
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Observational_studies
Limite:
Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article