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Pulmonary function in patients with systemic sclerosis

L Spagnolatti1, M C Zoia, E Volpini

  • 1Institute of Respiratory Disease, University of Pavia, IRCCS Policlinico San Matteo, Italy.

Monaldi Archives for Chest Disease = Archivio Monaldi Per Le Malattie Del Torace
|February 1, 1997
PubMed
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Systemic sclerosis (SSc) frequently causes lung abnormalities, with 41% showing restrictive patterns and 18% diffusion impairment. Respiratory symptoms and chest X-rays do not reliably predict lung function in SSc patients.

Area of Science:

  • Pulmonology
  • Rheumatology
  • Internal Medicine

Background:

  • Systemic sclerosis (SSc) is a connective tissue disorder that commonly affects the lungs.
  • Respiratory complications significantly impact patient prognosis and quality of life.

Purpose of the Study:

  • To determine the prevalence of respiratory functional abnormalities in SSc patients.
  • To investigate correlations between lung function, symptoms, and radiographic findings.

Main Methods:

  • 34 SSc patients underwent respiratory questionnaires and lung function tests adhering to European Coal and Steel Community (ECSC) standards.
  • Results were analyzed using SD scores for precise pathological identification.

Main Results:

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  • 38% of patients reported dyspnea; 50% had normal chest radiographs.
  • 41% exhibited a restrictive lung pattern, and 18% showed isolated diffusion impairment (TL,CO).
  • No significant correlation was found between TL,CO impairment and disease duration; small airways dysfunction was not characteristic.

    • Conclusions:

    • A high prevalence of respiratory functional abnormalities exists in SSc, often undetected by symptoms or chest X-rays.
    • Accurate respiratory function evaluation is crucial for SSc patient management.
    • Lung function impairment in SSc cannot be reliably predicted by chest radiography or reported symptoms.