A 74-year-old male with acute obstructive suppurative cholangitis due to common bile duct stones (CDBS) underwent an urgent endoscopic biliary decompression. A 7 F endoscopic nasobiliary drainage (ENBD) tube with a pigtail shape was temporarily placed in the common bile duct. The patient had also been diagnosed with an acute cerebral infarction several days before the endoscopic procedure and was under antiplatelet drug therapy.