Remote exercise testing in pulmonary hypertension (PHRET)

Author:

Stubbs Harrison12ORCID,Lua Stephanie1ORCID,Ingram Jamie1ORCID,Jani Bhautesh D.3ORCID,Brewis Melanie14ORCID,Church Colin14ORCID,Johnson Martin14ORCID

Affiliation:

1. Scottish Pulmonary Vascular Unit Golden Jubilee National Hospital Glasgow UK

2. School of Health & Wellbeing University of Glasgow Glasgow UK

3. General Practice and Primary Care, School of Health & Wellbeing University of Glasgow Glasgow UK

4. School of Cardiovascular & Metabolic Health University of Glasgow Glasgow UK

Abstract

AbstractRemote exercise tests for patients with pulmonary hypertension (PH) would improve the telemedicine strategies in this disease. The PHRET study assessed the validity and feasibility of four remote exercise tests performed by PH patients at home. Participants undergoing diagnostic assessment for PH were included. At baseline, patients completed a 6MWT followed by a range of study tests including a Timed Up and Go (TUG) test, a Sit‐to‐Stand (STS), a Step Test (ST), and a tele‐6MWT (T6MWT) performed outside using a GPS‐enabled smartphone. Patients performed these tests at home following discharge and at first follow‐up. Analysis focused on comparing the results of study tests to the standard 6MWT. The discontinuation rate was 15%. Ninety‐seven percent of patients were able to complete a TUG, 92% a STS, 73% a ST, and 49% a T6MWT. At baseline, correlation between the standard 6MWT and study tests, respectively, was T6MWT 0.93, ST 0.78, STS 0.71, and TUG −0.76 (p < 0.001). Direction of change in the study test agreed with the standard 6MWT in 68% of the follow‐up ST, 68% of the STS, 71% of the TUG, and 79% of the T6MWT. Patients were able to complete the tests at home, there were no adverse incidents and ≥92% of patients were happy to continue performing home tests. Remote exercise testing is feasible. The T6MWT was a valid remote measure of exercise capacity, but could only be performed by a limited number of patients. The high discontinuation rate may impact the utility of remote tests.

Publisher

Wiley

Subject

Pulmonary and Respiratory Medicine

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