How are EUS guided CPB and neurolysis performed? The celiac trunk is easily identified with EUS, because it is located in close proximity to the posterior gastric wall. Because of its close proximity EUS-FNI is easily performed. A 22-gauge needle is advanced into the area and bupivacaine (an anesthetic) is injected to reduce discomfort. Next, …
How is EUS FNA performed? EUS is performed with a linear array scope, which provides an image along the long axis of the scope. This allows the endoscopist to visualize the exact position and action of the needle in sonographic real time. The flow and Doppler capability of this instrument allow for visualization of vascular …
What are the indications for EUS guided celiac plexus block (CPB) and CPN? What is the difference? Why do they work? The celiac plexus transmits pain sensations from the pancreas and most of the abdominal organs. As a result, blockage of this transmission has been found to be effective in the therapy of pain. CPB refers …
How is EUS guided transmural pseudocyst drainage performed? Transmural EUS guided pseudocyst drainage can be performed by a multistep or single-step procedure. The multistep procedure involves EUS localization of the pseudocyst, followed by transmural drainage using a side-viewing endoscope (duodenoscope). Presence of gastric or duodenal varices and lack of bulging of the stomach or duodenum …
How is EUS guided transmural pseudocyst drainage performed Read More »
What is the role of EUS in sampling pancreatic cystic neoplasms? EUS with FNA can be used to obtain diagnosis in the case of suspected cystic neoplasms. Additional analysis of aspirated fluid can also be of value, such as a mucin stain (positive in intraductal papillary mucinous tumor, mucinous cystadenoma, and mucinous cystadenocarcinoma), determination of …
Role of EUS in sampling pancreatic cystic neoplasms Read More »
What are the applications of EMR and ESD? These techniques provide definite therapy for benign lesions, premalignant lesions, and early malignancies (Tis and T1N0M0). EUS and Kudo’s mucosal pit pattern analysis may be used to assess the tumor-node-metastasis (TNM) staging and invasiveness and removability of the lesion. Lesions in the mucosa, lesions with minimal submucosal …
What is advanced therapeutic endoscopy? Advanced therapeutic endoscopy is a group of techniques that are minimally invasive and organ sparing, and yet can diagnose, remove, and treat benign lesions and early malignancies of the gastrointestinal (GI) tract without need of traditional surgery using endoscopy. What are the major advanced therapeutic endoscopy techniques? A. Endoscopic mucosal resection …