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Create a Free AccountProcedures - Ablation
Endoscopic radiofrequency ablation for palliative treatment of hilar cholangiocarcinoma
Recent data support a role for endoscopic radiofrequency ablation (RFA) in unresectable cholangiocarcinoma by improving stent patency and overall survival.Liquid nitrogen spray cryotherapy for intramucosal carcinoma and extensive gastric intestinal metaplasia with dysplasia
Gastric intestinal metaplasia with dysplasia (GIM-D) that is visible as a discrete limited lesion on endoscopy is readily treated using endoscopic mucosal resection or endoscopic submucosal dissection. However, there are few options for more extensive and invisible dysplasia. Ablating a wide swath of tissue with argon plasma coagulation or radiofrequency ablation can be challenging and carries risks, including postprocedure ulceration. Liquid nitrogen spray cryotherapy is an established treatment for dysplasia in Barrett’s esophagus, but its use for GIM-D has not been previously reported.Wire-guided and endoscopic-guided transesophageal echocardiographic probe insertion
Zenker's diverticulum (ZD) is the posterior pulsion diverticulum below the esophageal introitus through or above the cricopharyngeal muscle, and it is associated with a prominent cricopharyngeal bar.1,2 ZD can cause dysphagia, regurgitation of undigested food, cough, and aspiration of food particles. During endoscopy, ZD often creates difficulty in esophageal intubation. Flexible endoscopic treatment for ZD focuses on releasing the cricopharyngeal spasm by performing diverticulotomy on the septum.Multicenter case series of patients with small-bowel angiodysplasias treated with a small-bowel radiofrequency ablation catheter
GI angiodysplasia is the most common cause of small-bowel bleeding. Argon plasma coagulation (APC) is preferred for ablation because of its availability, ease of use, and perceived safety, but it has limitations. An instrument capable of repeated use through the enteroscope, which covers more area of intestinal mucosa per treatment with low risk of damage to healthy mucosa, and which improves ablation, is desirable. A series of patients treated with a through-the-scope radiofrequency ablation (RFA) catheter is reported.
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