An Incidental Finding of a Large Pericardial Cyst.

A pericardial cyst is a rare and benign cause of a mediastinal mass. They are frequently asymptomatic and are usually incidental findings on imaging. Symptoms may include persistent cough, atypical chest pain, dysphagia, and dyspnea.

Stress fracture of femoral stem of hip resurfacing a cause of sudden onset hip pain- A case report and review of literature.

Resurfacing arthroplasty of the hip has had a difficult last decade. Fracture of the femoral neck has been a known complication of resurfaced hip replacement; however, fracture of the metal peg within the femoral component has only been reported twice. We encountered and treated a patient with a unique type of metal failure.

Mal-Positioning of Dialysis Catheter in Anomalous Left Superior Pulmonary Vein in a Patient with Acute Type A Dissection, a Case Report.

The partial anomalous pulmonary vein drainage is a rare congenital defect. The pulmonary vein drains in to a systemic vein instead of draining in to the left atrium. In this rare birth defect, the right sided pulmonary vein involvement is more prevalent than the left sided pulmonary veins.

Effects of medical scribes on physician productivity in a Canadian emergency department: a pilot study.

Background: Emergency department efficiency is a priority across Canada. In the United States, scribes may increase the number of patients seen per hour per physician; however, Canadian data are lacking. We sought to implement scribes in a Canadian emergency department with the hypothesis that scribes would increase the number of patients seen per hour per physician.

Systemic effects of cobalt toxicity after revision hip replacement can manifest in intermediate to long term follow-up.

Introduction: Metal toxicity from metal-on-metal hip replacements is now well documented and several large series have reported local reactions. Although less common, there are reports of similar reactions from failed ceramic liners. Systemic effects documented in literature have been grouped into cardiac, neuro-ocular and thyroid signs.

A double mobility acetabular implant for primary hip arthroplasty in patients at high risk of dislocation.

Introduction: Dislocation following total hip replacement continues to be a problem for which no completely satisfactory solution has been found. Several methods have been proposed to reduce the incidence of hip dislocations with varying degrees of success, including elevated rim liners, constrained liners and large diameter bearings. We present our experience with the double mobility acetabular component in patients at high risk of instability.

Primary and revision THA using a stemless metaphyseal-loading implant above distorted proximal femoral anatomy.

Total hip arthroplasty is well established as a successful treatment for end stage arthritis, with a wide variety of components currently available. Using traditional stemmed implants in patients with a distorted proximal femur can be technically challenging with an increased risk of complications. We present seven patients with distorted proximal femoral anatomy or failed hip arthroplasty in whom a short, metaphyseal loading implant was utilised.

The double-mobility acetabular component in revision total hip replacement: the United Kingdom experience.

We present our experience with a double-mobility acetabular component in 155 consecutive revision total hip replacements in 149 patients undertaken between 2005 and 2009, with particular emphasis on the incidence of further dislocation. The mean age of the patients was 77 years (42 to 89) with 59 males and 90 females. In all, five patients died and seven were lost to follow-up.

Conversion of a long distally fixed uncemented revision femoral stem to a proximally fixed implant following fatigue fracture.

There has been increasing focus on bone conservation through proximal fixation in primary hip arthroplasty. However, the debate regarding fixation in revision arthroplasty and which factors influence implant choice remains less clear-cut. We report a case involving fatigue fracture of a long, distally well-fixed, uncemented revision stem.

Detection by PCR and analysis of the distribution of a fibronectin-binding protein gene (fbn) among staphylococcal isolates.

The fibronectin-binding proteins of Staphylococcus aureus are considered to be important virulence factors for colonisation and infection. The polymerase chain reaction (PCR) was used to detect part of a gene equivalent to the fbnA gene of S. aureus in 120 isolates of staphylococci (S.

The distribution and properties of some hydrolytic enzymes from Porphyromonas gingivalis W50.

The production, distribution (as cell-bound, extracellular or associated with vesicles) and properties of four hydrolytic enzymes from Porphyromonas gingivalis were studied. During batch culture, enzymes appeared as cell bound until 72 h when extracellular trypsin-like protease and glycylprolyl dipeptidase were found. Alkaline phosphatase and N-acetyl-beta-glucosaminidase continued to be mainly cell-bound until 96 and 144 h post-inoculation, respectively.

The influence of haemin levels on growth and enzyme production by Porphyromonas gingivalis in continuous culture.

Porphyromonas gingivalis was grown in continuous culture in brain heart infusion medium with haemin (5 microgm 1(-1) to 10 mg 1(-1)). Growth was haemin-limited up to 400 microgm 1(-1), and steady-state growth could not be obtained in the absence of haemin. It was confirmed that protoporphyrin IX could replace the haemin requirement.

The effects of tetradecyl-4-ethyl-pyridinium chloride on the maximum specific growth rate biomass and hydrolytic enzyme production of Bacteroides gingivalis in continuous culture.

Bacteroides gingivalis was grown in continuous culture in the presence of tetradecyl-4-ethyl-pyridinium chloride (TDEPC). The maximum specific growth rate and biomass levels decreased with increasing concentrations of antimicrobial and complete inhibition of growth occurred when the TDEPC concentration reached 40 mg/l. Hydrolytic enzymes were detected in cells, vesicles and supernatant fractions of whole culture.

The effects of chlorhexidine on the maximum specific growth rate, biomass and hydrolytic enzyme production of Bacteroides gingivalis grown in continuous culture.

Bacteroides gingivalis was grown in continuous culture in the presence of chlorhexidine. Maximum specific growth rates and biomass levels initially increased but then decreased as the chlorhexidine level increased from 0 to 30 micrograms/ml. Total inhibition of growth occurred when the chlorhexidine concentration reached 60 micrograms/ml.

Production of cell-bound and vesicle-associated trypsin-like protease, alkaline phosphatase and N-acetyl-beta-glucosaminidase by Bacteroides gingivalis strain W50.

Bacteroides gingivalis strain W50 was grown in batch and continuous culture on complex medium with haemin. In batch culture, cell-bound levels of trypsin-like protease (EC 3.4.