title: Effect of chlormadinone acetate on sleep arterial oxygen desaturation in patients with chronic obstructive pulmonary disease.
abstract: Twelve patients with chronic obstructive pulmonary disease (COPD) were studied in order to evaluate the effect of chlormadinone acetate (CMA), a potent synthetic progesterone, on the degree of hypoxemia during sleep. In patients designated as "correctors," in whom an increase in minute ventilation (VI) during wakefulness was brought about mainly by an increase in tidal volume (VT) and PaCO2 was effectively decreased by the administration of CMA, this agent also proved to be effective during sleep, with hypoxemia improved during both NREM and REM sleep. On the other hand, in patients called "noncorrectors" in whom a decrease in PaCO2 was not seen during wakefulness with CMA, there was also no effect during sleep. These results indicate that CMA is effective in certain selected patients with COPD.
mesh_terms: D000284:Administration, Oral; D000328:Adult; D000368:Aged; D002245:Carbon Dioxide / Q000097:blood; D002715:Chlormadinone Acetate / Q000008:administration & dosage / Q000627:therapeutic use*; D005260:Female; D005540:Forced Expiratory Flow Rates; D006801:Humans; D000860:Hypoxia / Q000188:drug therapy* / Q000503:physiopathology; D008173:Lung Diseases, Obstructive / Q000188:drug therapy* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D010100:Oxygen / Q000097:blood; D012119:Respiration; D012891:Sleep Apnea Syndromes / Q000188:drug therapy* / Q000503:physiopathology; D013990:Tidal Volume; D014797:Vital Capacity
chemical_list: D002715:Chlormadinone Acetate; D002245:Carbon Dioxide; D010100:Oxygen