Research
The clinical value of daily routine chest radiographs in a mixed medical–surgical intensive care unit is low
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* Corresponding author: Marcus J Schultz m.j.schultz@amc.uva.nl
1 Medical student, Department of Intensive Care Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
2 Resident, Departments of Intensive Care Medicine and Internal Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
3 Resident, Departments of Intensive Care Medicine and Anesthesiology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
4 Clinical Epidemiologist, Department of Clinical Epidemiology and Biostatistics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
5 Internist-intensivist, Department of Intensive Care Medicine, Gelre Hospital (Location Lukas), Apeldoorn, The Netherlands
6 Radiologist, Department of Radiology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
7 Anaesthsiologist-intensivist, Department of Intensive Care Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
8 Internist-intensivist, Research Coordinator, Department of Intensive Care Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
Critical Care 2006, 10:R11 doi:10.1186/cc3955
Published: 30 December 2005Abstract
Introduction
The clinical value of daily routine chest radiographs (CXRs) in critically ill patients is unknown. We conducted this study to evaluate how frequently unexpected predefined major abnormalities are identified with daily routine CXRs, and how often these findings lead to a change in care for intensive care unit (ICU) patients.
Method
This was a prospective observational study conducted in a 28-bed, mixed medical–surgical ICU of a university hospital.
Results
Over a 5-month period, 2,457 daily routine CXRs were done in 754 consecutive ICU patients. The majority of these CXRs did not reveal any new predefined major finding. In only 5.8% of daily routine CXRs (14.3% of patients) was one or more new and unexpected abnormality encountered, including large atelectases (24 times in 20 patients), large infiltrates (23 in 22), severe pulmonary congestion (29 in 25), severe pleural effusion (13 in 13), pneumothorax/pneumomediastinum (14 in 13), and malposition of the orotracheal tube (32 in 26). Fewer than half of the CXRs with a new and unexpected finding were ultimately clinically relevant; in only 2.2% of all daily routine CXRs (6.4% of patients) did these radiologic abnormalities result in a change to therapy. Subgroup analysis revealed no differences between medical and surgical patients with regard to the incidence of new and unexpected findings on daily routine CXRs and the effect of new and unexpected CXR findings on daily care.
Conclusion
In the ICU, daily routine CXRs seldom reveal unexpected, clinically relevant abnormalities, and they rarely prompt action. We propose that this diagnostic examination be abandoned in ICU patients.