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[Chronic respiratory insufficiency in France].

The data concerning the prevalence of chronic respiratory insufficiency (CRI) in France are scarce: in 1994 official numbers were 14,000 deaths due to chronic bronchitis, 2,000 due to asthma for a total number of 40,000 deaths with respiratory cause; the same year 27,000 new patients were compensated for chronic respiratory insufficiency by social security services. On January 1st 2000 the non-profit organizations was in charge of 21,500 patients with long term oxygen therapy and 10,500 with home ventilation, and the commercial companies respectively 30,000 and 6,000. Accordingly the total of patients treated at home for CRI is about 68,000. The repartition by cause of CRI, the characteristics of patients and the prognosis can be evaluated thanks to the ANTADIR observatory which collects medical data since 1981. Chronic obstructive pulmonary diseases (chronic bronchitis, emphysema, asthma, bronchiectasis) count for more than half of the total of cases. Other causes comprise pleuro-parietal diseases (tuberculosis sequelae, kyphoscoliosis), neuro-muscular diseases and interstitial lung diseases. CRI is a severe disease with a survival median of three years for chronic obstructive pulmonary diseases, and a prognosis slightly better for kyphoscoliosis and neuro-muscular diseases, and worse for pulmonary fibrosis.