Focus on Analysis of Recovery in Oximetry (FARO)

University Hospital, Angers

Status: Completed

Conditions: Intermittent Claudication

Treatments: Diagnostic Test: Transcutaneous oxygen pressure measurement during the treadmill test

Study type: Observational

Funder types: Other

Identifiers

NCT04376099

2020/42

Details and patient eligibility

About

Analysis of localizations for symptoms and ischemia on treadmill and of the recovery profiles of patients that have had an exercise oximetry

Full description

Patients referred for exercise oximetry have buttocks thighs and calves recording during exercise and in the recovery period for a minimum of 10 minutes.

For each limb probe the decrease from rest of oxygen pressure (DROP) index is calculated as a subtraction of chest changes from limb changes throughout rest, exercise and recovery. DROP was measured as a routine on buttocks, thighs and calves and a minimal DROP lower than minus 15 mmHg considered indicative of the presence of regional blood flow impairment (ischemia) in the considered area.

Recordings and patients characteristics are recorded on a institutionally validated database.

A comparison will be performed of symptoms by history to symptoms reported on treadmill and hemodynamic results attained through DROP values.

Re-analysis of the recordings after ethical approval will be performed in an aim at estimating the duration of 50% and 90% recovery of DROP at the different levels (buttocks tigh and calves) to account for hemodynamic impairmenty not only at the calf (calves) level.

Enrollment: 1,000 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Available exercise oximetry recording

Exclusion criteria

• Deny of the use of the medical file from the patient

Trial design

1,000 participants in 1 patient group

Exercise oximetry

Description:

Patients complaining claudication and referred for exercise diagnostic oximetry. Exercise oximetry are performed on treadmill (3.2km/h, 10% slope)

Treatment:

Diagnostic Test: Transcutaneous oxygen pressure measurement during the treadmill test