Preoperative tissue diagnosis of mass lesions in the biliary pancreatic region has always been a challenging task. EUS guided fine needle aspiration (FNA) provides an impressive solution to this ...preoperative dilemma. EUS permits real-time imaging from close quarters which allows precise control and accurate needle placement and permits accurate biopsy to be performed.
Pain associated with pancreatic cancer and chronic pancreatitis is usually severe and may not respond to commonly used analgesics either NSAID’s or opiods 1, 2. Effective control of pain in these ...situations often employs non-pharmacological therapies such as celiac plexus neurolysis (CPN) and block (CPB) using injection of absolute alcohol or steroids respectively. These procedures not only control the pain but reduce the risk of side effects of opiods and NSAID’s.
Linear EUS of the Anorectum Bapaye, Amol; Aher, Advay
Practical Handbook of Endoscopic Ultrasonography
Book Chapter
The utility of endorectal and endoanal ultrasound has evolved in the last few years 1. Both radial and linear EUS are used for evaluation of anorectal diseases. Radial EUS is preferred for ...examination of anal canal whereas linear is preferred for rectal and para rectal examination and to perform interventions.
Techniques of EUS-FNA Bapaye, Amol; Aher, Advay
Practical Handbook of Endoscopic Ultrasonography
Book Chapter
EUS-FNA is the commonest intervention performed through the EUS endoscope. Mass lesions or enlarged lymph nodes in the mediastinum, retroperitoneum and pancreas or in the gut wall require tissue ...diagnosis to plan optimum treatment strategies. EUS-FNA was first described by Vilmann et al. in 1992 1.
Linear EUS of the Stomach Bapaye, Amol; Aher, Advay
Practical Handbook of Endoscopic Ultrasonography
Book Chapter
EUS is effective in evaluation of lesions of the gastric wall and the perigastric area. Although radial EUS or catheter probe is often preferred for assessment of gastric lesions, linear EUS provides ...optimum scanning of this region and also permits FNA at the same time.
The esophagus is a tubular organ and is often scanned using the radial echoendo-scope. Linear EUS is equally effective in scanning the esophagus and mediastinum, and must be used whenever ...interventions are planned.
The linear echoendoscope (EG-530UT) has a curved transducer facing on one side. This provides a 120° sector scanning ultrasound view. The working channel opens just above the transducer and the ...instruments (commonly needle) can be seen on the ultrasound view. This permits EUS guided biopsies and interventions to be performed. The channel is wide (3.8 mm) and allows passage of instruments up to 10 Fr. diameter through the endoscope.
EUS is accurate in identification and evaluation of mediastinal mass lesions. Tissue acquisition of these lesions has always been a challenging task. FNA can be performed under EUS guidance under ...real-time vision with precise needle control and accurate needle placement inside the tumor. Doppler further improves safety of the procedure. A majority of mediastinal lesions do not require surgery as primary treatment, and therefore EUS helps to prevent an unnecessary thoracotomy in these patients 1, 2.
EUS offers excellent scanning views of the biliary-pancreatic region. Linear EUS can evaluate the biliary-pancreatic area with similar precision as that by radial EUS and in addition, allows FNA or ...other interventional procedures to be performed at the same time 1.
