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J R Coll Physicians Edinb. 2011 Sep;41(3):196-201. doi: 10.4997/JRCPE.2011.302.

A pilot audit of a protocol for ambulatory investigation of predicted low-risk patients with possible pulmonary embolism.

Author information

1
Department of Emergency Medicine, Royal Infirmary of Edinburgh, UK. alexander.mcdonald@nhs.net

Abstract

BACKGROUND:

Patients with possible pulmonary embolism (PE) commonly present to acute medical services. Research has led to the identification of low-risk patients suitable for ambulatory management. We report on a protocol designed to select low-risk patients for ambulatory investigation if confirmatory imaging is not available that day.

METHODS:

The protocol was piloted in the Emergency Department and Medical Assessment Area at the Royal Infirmary of Edinburgh. We retrospectively analysed electronic patient records in an open observational audit of all patients managed in the ambulatory arm over five months of use.

RESULTS:

We analysed 45 patients' records. Of these, 91.1% required imaging to confirm or refute PE, 62.2% received a computed tomography pulmonary angiogram (CTPA). In 25% of patients, PE was confirmed with musculoskeletal pain (22.7%), and respiratory tract infection (15.9%) the next most prevalent diagnoses. Alternative diagnoses was provided by CTPA in 32% of cases. We identified no adverse events or readmissions but individualised follow-up was not attempted.

CONCLUSIONS:

The data from this audit suggests this protocol can be applied to select and manage low-risk patients suitable for ambulatory investigation of possible PE. A larger prospective comparative study would be required to accurately define the safety and effectiveness of this protocol.

PMID:
21949912
DOI:
10.4997/JRCPE.2011.302
[Indexed for MEDLINE]

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