Colocolonic intussusception after colonoscopy
2012
cortex, but no pneumocephalus was seen. The working diagnosis was systemic air embolism (AE) complicated by cerebral ischemia in the setting of a PFO. AE is a rare complication of ERCP1; a recent review dentified 20 cases reported in the medical literature beween 1988 and 2010.2 This is the first case in the literature f AE occurring with the intraductal balloon system. AE may be asymptomatic as it often occurs with regional mbolism3 (ie, portal venous gas) or may present with cariac arrest,4 hypoxia, shock, or cerebral ischemia.5 For sysemic embolization of air to occur, there are 2 requirements: 1) entry of air into the circulation and (2) the presence of a Figure 2. CT of the brain reveals trace pneumocephalus.
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