The development of hepatic portal venous gas (HPVG) is rare but it might be associated with serious disease and poor clinical outcome. Recently, several iatrogenic causes of HPVG have been reported. HPVG as a complication of endoscopic balloon dilatation is a previously unreported event. We experienced a case of HPVG after endoscopic balloon dilatation in a 31 yr-old man with pyloric stricture due to corrosive acids ingestion. The patient was treated conservatively with fluid resuscitation, antibiotics and Levin tube with natural drainage. Five days later, the follow-up CT scan showed spontaneous resolution of HPVG. This case reminded us the clinical importance and management strategy of HPVG. We report here a case of iatrogenic HPVG with a review of relevant literature.
Adult ; Balloon Dilation/*adverse effects ; Embolism, Air/etiology/*radiography/therapy ; Endoscopy, Gastrointestinal ; Hepatic Veins/*radiography ; Humans ; Male ; Portal Vein/*radiography ; Pyloric Stenosis/therapy ; Tomography, X-Ray Computed

Afferent loop syndrome is a rare complication which can occur in patients with Billroth II gastrectomy. Bile and pancreatic juice is congested at afferent loop in the syndrome. This syndrome can progress rapidly to necrosis, perforation, or severe sepsis, and therefore early diagnosis and swift surgical intervention is important. But, cases of endoscopic or percutaneous transhepatic drainage have been reported when surgical management was inappropriate to proceed. We report a case of afferent loop syndrome accompanying acute cholangitis developed after percutaneous transhepatic cholangioscopic lithotripsy for the retrieval of common bile duct stone in a patient who underwent Billroth II gastrectomy due to early gastric cancer. There was no other organic cause. We treated afferent loop syndrome successfully by performing balloon dilation of afferent loop outlet.
Acute Disease ; Afferent Loop Syndrome/*etiology ; Aged, 80 and over ; Balloon Dilation ; Cholangiography ; Cholangitis/*etiology ; Choledocholithiasis/*diagnosis/radiography/therapy ; Common Bile Duct ; Gallstones/*diagnosis/therapy ; Gastroenterostomy ; Humans ; Lithotripsy/*adverse effects ; Male ; Stomach Neoplasms/surgery ; Tomography, X-Ray Computed