Medical Eponyms Letter Y

445. Young’s syndrome is clinical features similar to cystic fibrosis - including bronchiectasis - sinusitis - and obstructive azoospermia - but don’t have increased sweat chloride values - nor pancreatic insufficiency - nor abnormal nasal potential differences - nor the CF delta F508 mutation; affected individuals are often middle-aged males identified during evaluation for infertility.
446. Yuzpe regimen is ethinyl estradiol 100 mcg and levonorgestrel 0.5 mg taken twice -12 hours apart - reduces number of anticipated pregnancies by 75-80%.