Association of marked prolongation of prothrombin time-international normalized ratio with warfarin and endoscopic nasobiliary drainage for biliary fistula after left hemihepatectomy.
Takafumi NakazawaShingo YamazakiMasashi UchidaTakaaki SuzukiTakako NakamuraTsukasa TakayashikiMasayuki OhtsukaItsuko IshiiPublished in: Journal of clinical pharmacy and therapeutics (2020)
The effect of warfarin was enhanced in this patient due to reduced absorption of vitamin K as a result of external biliary drainage.