Ambulatory management of pulmonary embolism

Abstract

The diagnosis of pulmonary embolism can be very difficult and elusive. It depends greatly on the use of diagnostic tests, which are in turn interpreted according to a pre-test clinical probability. These include non-specific tests such as the chest X-ray and electrocardiograph, which help exclude other conditions such as pneumonia or myocardial infarction. On the other hand, more specific tests such as computed tomography or ventilation/perfusion scanning are used to confirm or exclude the diagnosis of pulmonary embolism. The condition is potentially fatal, and in the past patients with suspected pulmonary embolism constituted a significant number of hospital admissions. Despite this, the majority were found not to have pulmonary embolism. More recently, studies have suggested that most patients with suspected pulmonary embolism who are haemodynamically stable can be safely managed on an ambulatory pathway. Therefore, there is a paradigm shift towards investigating and treating pulmonary embolism in the outpatient setting. This article discusses the ambulatory pathway of the diagnosis and treatment of pulmonary embolism.

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