Argon plasma coagulation | |
---|---|
![]() Argon plasma coagulation administered via probe through the colonoscope at an angiodysplasia in the
colon. The patient had
multiple colonic angiodysplasiae in the setting of
aortic stenosis. | |
Other names | APC |
Specialty | Gastroenterology |
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 6 kV). [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 used to treat bleeding in parts of the gastrointestinal tract with thin walls, such as the cecum.
Argon plasma coagulation | |
---|---|
![]() Argon plasma coagulation administered via probe through the colonoscope at an angiodysplasia in the
colon. The patient had
multiple colonic angiodysplasiae in the setting of
aortic stenosis. | |
Other names | APC |
Specialty | Gastroenterology |
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 6 kV). [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 used to treat bleeding in parts of the gastrointestinal tract with thin walls, such as the cecum.