Argon plasma coagulation | 合法醫療器材資訊網

Argonplasmacoagulation(APC)isamedicalendoscopicprocedureusedtocontrolbleedingfromcertainlesionsinthegastrointestinaltract.Itisadministered​ ...

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Medical procedure

Argon plasma coagulation (APC) is a medical endoscopic procedure used to control bleeding from certain lesions in the gastrointestinal tract. It is administered during esophagogastroduodenoscopy or colonoscopy.

APC involves the use of a jet of ionized argon gas (plasma) directed through a probe passed through the endoscope. The probe is placed at some distance from the bleeding lesion, and argon gas is emitted, then ionized by a high-voltage discharge (approx 6kV).[1] High-frequency electric current is then conducted through the jet of gas, resulting in coagulation of the bleeding lesion. As no physical contact is made with the lesion, the procedure is safe if the bowel has been cleaned of colonic gases,[2][3] and can be u...