scholarly journals Endoscopic pancreatic stenting using the combination technique of injection needle and needle knife for complete pancreaticojejunal anastomotic obstruction

2021 ◽  
Author(s):  
Akihiko Kida ◽  
Koichiro Matsuda ◽  
Mitsuhiro Terada
Keyword(s):  
Combination Technique ◽  
Injection Needle ◽  
Needle Knife

Saline Injection Needle-Knife Sphincterotomy: A Preliminary Report

Endoscopy ◽  
1996 ◽  
Vol 28 (04) ◽  
pp. 360-364 ◽  
Author(s):  
K. P. Etzkorn ◽  
R. P. Venu ◽  
R. D. Brown ◽  
D. E. McGuire ◽  
A. Abu-Hammour
Keyword(s):  
Preliminary Report ◽  
Saline Injection ◽  
Injection Needle ◽  
Needle Knife

A Non-Monotone Line Search Combination Technique for Unconstrained Optimization

2014 ◽  
Vol 8 (1) ◽  
pp. 218-221 ◽  
Author(s):  
Ping Hu ◽  
Zong-yao Wang
Keyword(s):  
Global Convergence ◽  
Unconstrained Optimization ◽  
Numerical Experiments ◽  
Line Search ◽  
Optimization Problems ◽  
Search Algorithm ◽  
New Combination ◽  
Combination Rule ◽  
Combination Technique ◽  
Unconstrained Optimization Problems

We propose a non-monotone line search combination rule for unconstrained optimization problems, the corresponding non-monotone search algorithm is established and its global convergence can be proved. Finally, we use some numerical experiments to illustrate the new combination of non-monotone search algorithm’s effectiveness.

scholarly journals Biliary cannulation in endoscopic retrograde cholangiography: How to tackle the difficult papilla

2021 ◽  
Author(s):  
Mark op den Winkel ◽  
Jörg Schirra ◽  
Christian Schulz ◽  
Enrico N. De Toni ◽  
Christian J. Steib ◽  
...  
Keyword(s):  
Biliary Drainage ◽  
Guide Wire ◽  
A Priori ◽  
Endoscopic Retrograde Cholangiography ◽  
Endoscopic Retrograde ◽  
Biliary Cannulation ◽  
Increased Risk ◽  
Difficult Biliary Cannulation ◽  
Needle Knife ◽  
Transpancreatic Sphincterotomy

Background: In the setting of a naïve papilla, biliary cannulation is a key step in successfully performing endoscopic retrograde cholangiography (ERC). Difficult biliary cannulation (DBC) is associated with an increased risk of post-ERCP-pancreatitis and failure of the whole procedure. Summary: Recommendations for biliary cannulation can be divided in (a) measures to reduce the likelihood of a difficult papilla-situation a priori and (b) rescue techniques in case the endoscopist is actually facing DBC. (a): careful inspection of the papillary anatomy and optimizing its accessibility by scope-positioning is fundamental. A sphincterotome in combination with a soft-tip hydrophilic guide-wire rather than a standard catheter with a standard guide-wire should be used. (b): The most important rescue techniques are needle-knife precut, double-guidewire technique and transpancreatic sphincterotomy. In few cases, anterograde techniques are needed. To this regard, the EUS-guided biliary drainage (EUS-BD) followed by rendezvous is increasingly used as an alternative to percutaneous-transhepatic biliary drainage. Key Messages: Biliary cannulation can be accomplished with alternative retrograde or less frequently by salvage-anterograde techniques, once conventional direct cannulation attempts have failed. Considering recent favorable data for the early use of transpancreatic sphincterotomy, an adopted version of the 2016 European-Society-for-Gastrointestinal-Endoscopy (ESGE)-algorithm on biliary cannulation is proposed.

The Outstanding Ear: Combination Technique Otoplasty

1995 ◽  
Vol 112 (5) ◽  
pp. P32-P33
Author(s):  
Kweon I. Stambaugh
Keyword(s):  
Educational Objectives ◽  
Combination Technique ◽  
Ear Deformity

Educational objectives: To learn the anatomic considerations in the outstanding ear deformity, to become familiar with several techniques to correct this deformity, and to become very familiar with the combination technique otoplasty (Farrior).

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