title: Nifedipine and esophageal dysfunction in progressive systemic sclerosis. A controlled manometric study.
abstract: We evaluated the effect of the calcium channel blocking agent, nifedipine, on esophageal dysfunction in 15 patients with progressive systemic sclerosis, using a double-blind, randomized, crossover, placebo-controlled manometric study. Nifedipine significantly decreased lower esophageal sphincter pressure in these patients; this reduced lower esophageal sphincter pressure may cause gastroesophageal reflux. Thus, nifedipine may have detrimental effects on progressive systemic sclerosis patients.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002986:Clinical Trials as Topic; D005260:Female; D005764:Gastroesophageal Reflux / Q000139:chemically induced* / Q000503:physiopathology; D006801:Humans; D008297:Male; D008365:Manometry; D008875:Middle Aged; D009543:Nifedipine / Q000009:adverse effects*; D012595:Scleroderma, Systemic / Q000188:drug therapy*
chemical_list: D009543:Nifedipine