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Parasites and Biliary stones

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Endoscopic retrograde cholangiopancreatography ١١٠<br />

years of age, the developmentally delayed, uncooperative patients (eg,<br />

confused, demented, alcoholic), patients with a history of intolerance to<br />

conscious sedation <strong>and</strong> those at risk for ventilator or the morbidly obese<br />

(Koshy et al., 2000).<br />

Many patients with suspected type III sphincter of Oddi dysfunction<br />

(SOD) require GA, as they are typically chronic users of narcotic<br />

analgesia <strong>and</strong> benzodiazepine (Wehrmann et al., 1999).<br />

Introduction of the endoscope:<br />

The side viewing endoscope is introduced into the hypopharynx; the<br />

tip is advanced blindly to the cricopharyngeous, causing the patient to<br />

swallow. The duodenoscope is furtherly introduced into the esophagus,<br />

the stomach <strong>and</strong> the duodenum (Waye, 2000).<br />

Then a brief endoscopic examination of these segments was done.<br />

The finding of a large ulcer or neoplasm may cancel the need for ERCP.<br />

Other findings such as varices, a pseudocyst pressing on the gut wall, or<br />

oedema of the medial wall of the duodenum help to quantitate or localize<br />

disease processes (Sherman <strong>and</strong> Lehman, 1999).<br />

Carbon dioxide insufflation during ERCP significantly reduces<br />

postprocedural abdominal pain. No side effects were observed. Carbon<br />

dioxide should be the st<strong>and</strong>ard gas used for insufflation in ERCP<br />

(Bretthauer et al., 2007).<br />

Approaching the papilla:<br />

No cannulation of the papilla is attempted until the papilla is seen<br />

squarely <strong>and</strong> up close. Once it is found <strong>and</strong> the tip of the endoscope is<br />

perfectly aligned with the pyloric channel, the tip of the endoscope must<br />

be deflected up into the descending duodenum. Then straightening of the<br />

endoscope is done to get straight scope position which is done by 90-180

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