Coronary angiography is the gold standard for diagnosis of coronary artery disease. Though it is a relatively safe procedure, complications can occur. We present an unusual case of a dehisced radio opaque ring from the diagnostic angiography catheter into the left circumflex artery. It was successfully retrieved with a guidewire and a balloon catheter and revascularization was done in the same ...

In two patients, indwelling polyethylene catheters embolized to the pulmonary artery after being dislodged into the venous circulation during resuscitative efforts. Both were successfully extracted using a snare catheter. The use of radio-opaque material for indwelling catheters provides a valuable aid in the event of one being dislodged. The use of the snare catheter may obviate the needfor th...

We present a case of pulmonary cement embolism during cement augmentation of pedicle screw fixation for severe degenerative scoliosis. During intra-operative C-arm fluoroscopy, a radio-opaque substance was incidentally noted to pulsate in synchrony with the patient's heartbeat. A diagnosis of pulmonary cement embolism was made. The patient was treated with coumarin for 6 months. He made a good ...

Children with a history of a suspected swallowed radio-opaque foreign body should undergo radiographic examination of the nasopharynx even in the absence of symptoms and signs. Failure to identify and remove an object at this site can result in potentially fatal consequences.

Cases of fractured mobile unicompartmental knee bearings have recently been reported. The purpose of this study was to understand the mechanics behind these fractures and to examine the influence of different design modifications. A parametric finite element model was used to examine the influence of different geometrical factors on the stresses within the bearing. Crack initiation occurred cli...

The opportunistic fungal pathogen Candida albicans can switch spontaneously and reversibly between different cell forms, a capacity that may enhance adaptation to different host niches and evasion of host defense mechanisms. Phenotypic switching has been studied intensively for the white-opaque switching system of strain WO-1. To facilitate the molecular analysis of phenotypic switching, we hav...