Chronic Septic Arthritis in a Patient Referred for Total Knee Arthroplasty.

Background: While and other species were historically considered contaminants, they are recently being identified as pathogens with increasing frequency. . We report the case of a 78-year-old gentleman with a three-year history of knee pain and established diagnosis of osteoarthritis referred for consideration for total knee arthroplasty.

Correction to: Comparison of two software systems for quantification of myocardial blood flow in patients with hypertrophic cardiomyopathy.

The following information is missing from the Funding footnote on the first page of the published article: "This study was partly funded by NIH RO1 HL092985." The last/corresponding author is incorrectly listed on the first page of the published article: The correct name is Abraham MR.

Comparison of two software systems for quantification of myocardial blood flow in patients with hypertrophic cardiomyopathy.

Backgorund: Quantification of myocardial blood flow (MBF) by positron emission tomography (PET) is important for investigation of angina in hypertrophic cardiomyopathy (HCM). Several software programs exist for MBF quantification, but they have been mostly evaluated in patients (with normal cardiac geometry), referred for evaluation of coronary artery disease (CAD). Software performance has not been evaluated in HCM patients who frequently have hyperdynamic LV function, LV outflow tract (LVOT) obstruction, small LV cavity size, and variation in the degree/location of LV hypertrophy.

Diffuse interstitial fibrosis assessed by cardiac magnetic resonance is associated with dispersion of ventricular repolarization in patients with hypertrophic cardiomyopathy.

Background: Hypertrophic cardiomyopathy (HCM) is characterized by myocyte hypertrophy, disarray, fibrosis, and increased risk for ventricular arrhythmias. Increased QT dispersion has been reported in patients with HCM, but the underlying mechanisms have not been completely elucidated. In this study, we examined the relationship between diffuse interstitial fibrosis, replacement fibrosis, QTc dispersion and ventricular arrhythmias in patients with HCM.

Evaluation of Complications after Surgical Treatment of Thoracic Outlet Syndrome.

Background: Surgical treatment of thoracic outlet syndrome (TOS) is necessary when non-surgical treatments fail. Complications of surgical procedures vary from short-term post-surgical pain to permanent disability. The outcome of TOS surgery is affected by the visibility during the operation.