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A 47-year-old man was found at his home in a state of cardiopulmonary arrest. His family performed cardiopulmonary resuscitation on him. He was brought to our hospital by ambulance. On arrival, his pupils were dilated and his heart was in a state of ventricular fibrillation. After returning to spontaneous circulation by the cardiopulmonary resuscitation, the electrocardiogram revealed ST elevation at V2-V5. Cardiac catheterizatin revealed a left anterior descending coronary obstruction. Percutaneous coronary angioplasty was performed. On the 26th day after admission, acalculous cholecystitis was found. It was difficult to perform emergent surgery, because the patient was taking an anticoagulant drug. We performed PTGBA (percutaneous transhepatic gallbladder aspiration) on the same day, and the gallbladder inflammation was improved. We consider that PTGBA is an effective treatment for difficult cases of acalcuous cholecystitis.

To clarify the clinical features of acute acalculous cholecystitis (AAC), we reviewed 113 cases of AAC experienced from January, 2000 to December, 2007 in regard to patient background, etiology, imaging diagnosis, treatment, and outcomes. Functional bile stasis caused AAC in 34 of 113 cases (30.1%), and 28 of those developed in a nosocomial manner (82.4%). On the contrary, mechanical bile stasis caused 37 cases (32.7%), and all but one case developed in a community-acquired manner. mechanical bile stasis included 9 cases of biliary tract neoplasm (5, cystic duct cancer; 3, gallbladder cancer; 1, papillary adenoma). Since considerable cases of AAC were caused by biliary tract neoplasm, we have to pay attention to their existences.