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Sempore WY, Ramondou P, Hersant J, Feuilloy M, Guilleron C, Henni S, Abraham P. Specific slow tests are not mandatory in patients with extremely short standard (3.2 km/hr 10% slope) test durations during exercise oximetry. Clin Physiol Funct Imaging 2020; 40:232-237. [DOI: 10.1111/cpf.12626] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 12/10/2019] [Accepted: 02/23/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Wendsèndaté Yves Sempore
- Department of Vascular Medicine University Hospital Angers Angers France
- Centre Muraz National Institut of Public Health Bobo dioulaso Burkina Faso
| | - Pierre Ramondou
- Department of Vascular Medicine University Hospital Angers Angers France
| | - Jeanne Hersant
- Department of Vascular Medicine University Hospital Angers Angers France
| | | | - Celine Guilleron
- Department of Sports medicine University Hospital Angers Angers France
- Department of Sports Sciences University Le mans Le mans France
| | - Samir Henni
- Department of Vascular Medicine University Hospital Angers Angers France
- UMR Mitovasc CNRS6015‐INSERM 1083 University of Angers Angers France
| | - Pierre Abraham
- Department of Vascular Medicine University Hospital Angers Angers France
- Department of Sports medicine University Hospital Angers Angers France
- UMR Mitovasc CNRS6015‐INSERM 1083 University of Angers Angers France
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Abraham P, Ramondou P, Hersant J, Sempore WY, Feuilloy M, Henni S. Investigation of arterial claudication with transcutaneous oxygen pressure at exercise: Interests and limits. Trends Cardiovasc Med 2020; 31:218-223. [PMID: 32234333 DOI: 10.1016/j.tcm.2020.03.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 02/19/2020] [Accepted: 03/03/2020] [Indexed: 10/24/2022]
Abstract
Transcutaneous oxygen pressure (TcpO2) measurement has been used for years at rest in patients with lower extremity artery disease. It was proposed for exercise testing (Ex-TcpO2) in the 80ies to evaluate regional blood flow impairment (RBFI) at the proximal and distal levels simultaneously and on both sides, in case of claudication. It was suggested that the use of a chest electrode was mandatory to show that decreases in TcpO2 at the limb level result from limb RBFI and not from a systemic pO2 decrease of cardiopulmonary origin (exercise-induced hypoxemia). Unfortunately, a major pitfall of Ex-TcpO2 was the low absolute reliability of the regional perfusion index (RPI: ratio of limb to chest values) and the technique was almost abandoned until 2003, when the DROP index (Decrease from rest of oxygen pressure: limb changes minus chest changes from rest) was proposed. The DROP mathematical formula makes Tcpo2 results independent from the absolute pO2 starting values, improving reliability of Ex-TcpO2 as compared to the RPI. Since then, Ex-TcpO2 has been of renewed interest. The present paper addresses the physiology of Ex-TcpO2, interpretation of its results, and common misunderstandings about its use.
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Affiliation(s)
- Pierre Abraham
- Department of Sports Medicine, University Hospital, Angers, France; Department of Vascular Medicine, University Hospital, Angers, France; Department of Physiology, UMR Mitovasc CNRS6015-INSERM 1083, Faculty of Medicine, University of Angers and LUNAM University, Angers, France.
| | - Pierre Ramondou
- Department of Vascular Medicine, University Hospital, Angers, France
| | - Jeanne Hersant
- Department of Vascular Medicine, University Hospital, Angers, France
| | - Wendsèndaté Yves Sempore
- Department of Sports Medicine, University Hospital, Angers, France; Department of Physiology, UMR Mitovasc CNRS6015-INSERM 1083, Faculty of Medicine, University of Angers and LUNAM University, Angers, France; Centre Muraz, National Institute of Public Health, Burkina Faso
| | | | - Samir Henni
- Department of Vascular Medicine, University Hospital, Angers, France; Department of Physiology, UMR Mitovasc CNRS6015-INSERM 1083, Faculty of Medicine, University of Angers and LUNAM University, Angers, France
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