Not uncommonly, when cerebral angiography is performed via the femoral route , a long flexible-tip guide wire may be introduced into the appropriate vessel , but because of tortuosity of the carotid artery the catheter does not follow the guide wire. During attempts to maneuver the catheter into the carotid artery, the catheter and guide wire are displaced into the aortic arch . To overcome thi...

Background: Pancreatitis is most common complication of post-ERCP and needs to admission at least for one day. The purpose of this study was to assess the efficacy of guide wire for better common bile duct (CBD) cannulation for reducing post-ERCP pancreatitis. Methods: From April 2010 through March 2011, the patients who needed ERCP and referred to Shahid Beheshti and Rouhani Teaching Hospita...

Endoscopic ultrasound (EUS)-guided biliary access is performed when standard endoscopic retrograde cholangiopancreatography (ERCP) techniques fail and for inaccessible papillae [1]. EUS rendezvous requires passage of the guide wire into the duodenum, with subsequent removal of the echoendoscope and insertion of a second endoscope to grasp the distal end of the wire. During echoendoscope withdra...

When urethral catheterisation is difficult or impossible in spinal cord injury patients, flexible cystoscopy and urethral catheterisation over a guide wire can be performed on the bedside, thus obviating the need for emergency suprapubic cystostomy. Spinal cord injury patients, who undergo flexible cystoscopy and urethral catheterisation over a guide wire, may develop potentially serious compli...

At the final stages of a coronary artery bypass graft operation on a 64-year-old man, an experienced physician attempted to insert an intra-aortic balloon pump into the femoral artery via the Seldinger technique. However, while the balloon pump was being passed over the guide wire, the latter was completely lost. The guide wire should be held at the tip at all times to prevent passage into the ...

BACKGROUND Percutaneous interventions for chronic total occlusions have low success rates, primarily because of failure of guide wire crossing. Collagen-rich matrix constitutes the main barrier to chronic total occlusion crossing. In preclinical studies, local delivery of a bacterial collagenase formulation improved guide wire crossing. The Collagenase Total Occlusion-1 (CTO-1) Trial is a phase...

Central venous Catheterization (CVC) is a commonly performed procedure for venous access. It is associated with several complications. We report a rare case of extra luminal entrapment of guide wire during CVC placement in right jugular vein. We report a case of 28 years old female patient presented in our emergency with history of entrapped guide wire in right side of neck during CVC. X-ray sh...

Fibrin sheath formation around long-term haemodialysis catheter is a common cause of failed dialysis access. Treatment options include pharmacological and mechanical methods. This paper reports a case of failed dialysis access due to fibrin sheath encasement. Pharmacologic thrombolysis, mechanical disruption using guide wire and catheter exchange had failed to address the issue. Eventually, fib...

PURPOSE To conduct a validation study of a Doppler guide wire for potential neuroendovascular applications. METHODS A 12-MHz, 0.018-inch Doppler guide wire was evaluated in eight swine under various blood flow conditions using two types of in vivo cerebrovascular models (physiologic and arteriovenous shunting). Flow conditions were mechanically and pharmacologically altered. Doppler average p...