title: The amylase/creatinine clearance ratio in normal pregnancy and pregnancies complicated by pancreatitis, hyperemesis gravidarum, and toxemia.
abstract: The Cam/Ccr% has been suggested to be of value in the diagnosis of pancreatitis. The Cam/Ccr% was determined throughout gestation in normal pregnant and nonpregnant patients. The Cam/Ccr% was lower (p less than 0.05) throughout pregnancy and was a function of increased creatinine clearance. The Cam/Ccr% was increased in pregnant patients with pancreatitis. Two of four patients with the clinical diagnosis of hyperemesis gravidarum demonstrated elevations of the Cam/Ccr%. Toxemia with epigastric pain was noted to be associated with an elevated CamCcr% in all patients, whereas toxemia without epigastric pain was not routinely noted to be associated with an elevated ratio. The normal Cam/Ccr% in pregnancy is lower than the nonpregnant value, and this should be taken into consideration when evaluating a patient with suspected pancreatitis who is pregnant. Patients with the clinical diagnosis of hyperemesis gravidarum and toxemia should be screened with serial Cam/Ccr% for possible evolving pancreatitis.
mesh_terms: D000328:Adult; D000681:Amylases / Q000097:blood / Q000652:urine*; D003404:Creatinine / Q000097:blood / Q000652:urine*; D005260:Female; D005865:Gestational Age; D006801:Humans; D006939:Hyperemesis Gravidarum / Q000378:metabolism; D010195:Pancreatitis / Q000378:metabolism*; D011225:Pre-Eclampsia / Q000378:metabolism; D011247:Pregnancy; D011248:Pregnancy Complications / Q000378:metabolism*
chemical_list: D003404:Creatinine; D000681:Amylases