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Evaluation of cardiopulmonary exercise test in the prediction of disease progression in systemic sclerosis


1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13

 

  1. Department of Rheumatology and Immunology, University of Szeged, Faculty of Medicine, Szeged, Hungary.
  2. Department of Pulmonology, University of Szeged, Faculty of Medicine, Szeged, Hungary.
  3. Department of Pulmonology, University of Szeged, Faculty of Medicine, Szeged, Hungary.
  4. Department of Pulmonology, University of Szeged, Faculty of Medicine, Szeged, Hungary.
  5. Department of Internal Medicine, Cardiology Centre and Department of Family Medicine, University of Szeged, Faculty of Medicine, Szeged, Hungary.
  6. Department of Rheumatology and Immunology, University of Szeged, Faculty of Medicine, Szeged, Hungary.
  7. Department of Rheumatology and Immunology, University of Szeged, Faculty of Medicine, Szeged, Hungary.
  8. Department of Rheumatology and Immunology, University of Szeged, Faculty of Medicine, Szeged, Hungary.
  9. Department of Pulmonology, University of Szeged, Faculty of Medicine, Szeged, Hungary.
  10. Department of Rheumatology and Immunology, University of Szeged, Faculty of Medicine, Szeged, Hungary.
  11. Department of Internal Medicine, Cardiology Centre and Department of Family Medicine, University of Szeged, Faculty of Medicine, Szeged, Hungary.
  12. Department of Pulmonology, University of Szeged, Faculty of Medicine, Szeged, Hungary.
  13. Department of Rheumatology and Immunology, University of Szeged, Faculty of Medicine, Szeged, Hungary. kovacs.laszlo@med.u-szeged.hu

CER13868
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PMID: 33769261 [PubMed]

Received: 27/07/2020
Accepted : 04/01/2021
In Press: 24/03/2021

Abstract

OBJECTIVES:
Cardiopulmonary exercise test (CPET) is a widely used examination to predict the prognosis of many chronic pulmonary diseases, and it has also been tested in systemic sclerosis (SSc) with a focus on the development of pulmonary hypertension. CPET is a highly informative non-invasive tool that provides a more complex information than conventional lung function tests to predict the course of cardiopulmonary diseases, as it provides a general overview of the aerobic metabolism, influenced by pulmonary, cardiovascular and peripheral muscle function. The purpose of this investigation was to assess if the progression and the development of poor overall disease outcome in SSc can be predicted by this method.
METHODS:
Twenty-nine SSc patients were investigated prospectively with standard follow-up plus CPET for a mean of 3.7 years to match the results of conventional evaluation modalities and CPET. A composite end-point of several serious outcomes reflecting SSc-related vascular and cardiopulmonary damage was set up, and the predictive value of and correlations between the CPET parameters and resting lung function and echocardiography variables were assessed.
RESULTS:
None of the clinical parameters, resting lung function or echocardiographic test results proved to be predictive of the development of the endpoint of poor prognosis in this cohort. In contrast, several CPET parameters were found to discriminate between SSc patients with or without adverse outcome. The detection of desaturation (at any CPET test) was associated with a higher risk of poor prognosis (OR:5.265). VO2 and VE/VCO2 at baseline correlated with the annual decrease in FVC, anaerobic threshold with the development of digital ulcers, and VE/VO2 with the increase in pulmonary arterial pressure.
CONCLUSIONS:
Several CPET parameters obtained at the beginning of follow-up are informative of the appearance of various adverse end-points. CPET is a feasible examination in the care of SSc patients and provides excess information to current standard follow-up examinations.

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