Current best evidence for clinical care (more info)
The World Health Organization (WHO) undertook the development of a rapid guide on the use of chest imaging in the diagnosis and management of COVID-19. The rapid guide was developed over two months using standard WHO processes, except for the use of 'rapid reviews' and online meetings of the panel. The evidence review was supplemented by a survey of stakeholders regarding their views on the acceptability, feasibility, impact on equity and resource use of the relevant chest imaging modalities (chest radiography, chest CT and lung ultrasound). The guideline development group had broad expertise and country representation. The rapid guide includes three diagnosis recommendations and four management recommendations. The recommendations cover patients with suspected or confirmed COVID-19 with different levels of disease severity, throughout the care pathway from outpatient facility or hospital entry, to home discharge. All recommendations are conditional and are based on low certainty evidence (n=2), very low certainty evidence (n=2), or expert opinion (n=3). The remarks accompanying the recommendations suggest which patients are likely to benefit from chest imaging and what factors should be considered when choosing the specific imaging modality. The guidance also offers considerations about implementation, monitoring and evaluation, and identifies research needs.
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