Inadvertent occlusion of the anterior choroidal artery during aneurysm clipping can cause a disabling stroke in minutes. We evaluate the clinical utility of direct cortical motor evoked potential (MEP) monitoring during aneurysm clipping, as a real-time assessment of arterial patency, prior to performing indocyanine green videoangiography.   Direct cortical MEPs were recorded in seven patients ...

We modified the elastase-induced aneurysm model by use of a simple surgical technique in rabbits. A temporary arcuated aneurysm clip was placed at the origin of the right common carotid artery (RCCA), ascertaining the inner edge of the clip blade on the juncture of the RCCA and right subclavian artery (RSCA), and the elastase-induced aneurysm procedure was undertaken. We found elastase and loca...

Author’s address: Dr. J. G. F. Worst, de Sav. Lohmanlaan 62, Groningen (The Netherlands) Binkhorst’s iris clip lens is fixed in the pupil by the contracting sphincter muscle. To obtain a permanent fixation the iris borders must remain in contact with the vertical pillars of the retroirideal loops of the clip lens. The patient with ‘artificial pseudo-phakia’ must therefore be kept on pilocarpine...

BACKGROUND AND STUDY AIMS This case report demonstrates successful endoscopic treatment of a persistent gastrocutaneous fistula after removal of a percutaneous endoscopic gastrostomy (PEG) in a 21-year-old patient with mucoviscidosis after lung transplantation. Because the initial OTSC clip (gastric) did not close the fistula sufficiently, we had to remove it and replace it with a larger OTSC c...

Postcholecystectomy clip migration is rare and can lead to complications such as clip-related biliary stones. Most of such incidents have been reported as case reports. This study reviews a case of postcholecystectomy clip migration. It can occur at any time but typically occur at a median of 2 years after cholecystectomy. Clinical presentations are similar to those with primary or secondary ch...

OBJECTIVES: The exclusion of the left atrial appendage (LAA) has been used to reduce the risk of stroke associated with atrial fibrillation (AF). While LAA exclusion has been associated with a reduced risk of stroke, the effect on the electrical activity of the LAA (a potential source of AF) remains unknown. As such, we sought to demonstrate whether surgical epicardial clip occlusion leads to t...

Introduction The placement of intramammary marker clips has proven to be helpful for tumor localization in patients undergoing neoadjuvant chemotherapy and breast-conserving surgery. The purpose of our study was to investigate the feasibility of using a clip marker system for breast cancer localization and its influence on the imaging assessment of treatment responses after neoadjuvant chemothe...

Peptides from the lumenal portion of invariant chain (Ii) spanning residues 80-106 (class II-associated Ii peptide [CLIP]) are found in association with several mouse and human major histocompatibility complex (MHC) class II allelic variants in wild-type and presentation-deficient mutant cells. The ready detection of these complexes suggests that such an intermediate is essential to the MHC cla...

Duodenal endoscopic mucosal resection (EMR) carries a high risk of adverse events, including delayed perforation [1, 2]. Because complete clip closure of mucosal defects can reportedly prevent post-procedural adverse events in the colorectum, we established a line-assisted complete closure (LACC) technique for large mucosal defects after colonic endoscopic submucosal dissection [3]. LACC can be...

The use of CT angiography is described in three patients for the evaluation of intracranial clips after surgery for an aneurysm. A postprocessing technique is described in which shaded-surface-display models were superimposed on maximum intensity projection CT angiograms. CT angiograms showed residual aneurysmal filling adjacent to a clip, patency of a vessel thought to be compromised by recent...