ABSTRACT
Breast stimulation can produce contractions in a contraction stress test and has been considered for the augmentation of labor and prevention of postpartum hemorrhage. We present a case of intravenous access of a mammary vein in an obstetric patient that led to uterine hyperstimulation. Potential dangers of mammary vein intravenous access are discussed.
Subject(s)
Breast/physiology , Catheterization, Peripheral , Labor, Induced/methods , Physical Stimulation/methods , Postpartum Hemorrhage/prevention & control , Uterine Contraction/physiology , Adult , Breast/blood supply , Comorbidity , Female , Heart Rate, Fetal/physiology , Humans , Nipples/blood supply , Nipples/physiology , Pregnancy , Pregnancy OutcomeABSTRACT
1,4-Diamino-2-butyne was prepared from 1,4-dichloro-2-butyne via 1,4-diazido-2-butyne. Bis(amino acid) derivatives of 1,4-diamino-2-butyne having the general structure (Boc-Xxx-NHCH2C[triple bond])2 (Xxx = Ala, Phe and Met) were prepared and examined by 1H NMR spectroscopy. Using chemical shift, coupling constant and DMSO titration data it is found that these compounds adopt a C2-symmetric turn conformation featuring two intramolecular hydrogen bonds.
