Venkat Ramanathan

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To assess the efficacy of an antibiofilm/antimicrobial agent combination, we incubated catheter segments colonized with one of six studied bacterial organisms in N-acetylcysteine, tigecycline, N-acetylcysteine-tigecycline, or saline. Segments were washed, sonicated, and cultured. N-acetylcysteine-tigecycline significantly decreased all viable(More)
In patients undergoing hemodialysis, catheter-related bacteremia results in expensive hospitalizations. In our study, the mean cost was $23,451 per hospitalization. When itemized, housing ("bed-related") costs accounted for 66% of the total; laboratory costs accounted for 4%, radiologic costs accounted for 9%, and procedure-related costs accounted for 21%.(More)
BACKGROUND It is well documented that infective endocarditis (IE) is strongly associated with morbidity and mortality in haemodialysis (HD) patients. Less clear are the mortality risk factors for IE, particularly in an urban African-American dialysis population. METHODS IE patients were identified from the medical records for the period from January 1999(More)
While the association between post-transplant nephrotic range proteinuria (PTx-NP) and chronic allograft nephropathy (CAN) has been described, the factors that determine graft survival in such patients are unclear. We retrospectively identified 30 patients with biopsy-proven CAN who presented with PTX-NP between 1988 and 2002. Patients were stratified into(More)
Plasma cell-rich acute rejection (PCAR) is associated with poor allograft outcome in renal transplantation. Previous studies report a graft half-life of six months after a single PCAR episode. However, the management of this condition is unclear. Intravenous immunoglobulin (IVIG) therapy, by virtue of its immunomodulating properties, and its influence on(More)
podocyte as a marker for the differential diagnosis of idiopathic focal glomerulosclerosis and minimal-change nephrotic syndrome. Am J Nephrol 2000; 20: 175–179 8. Nakamura T, Ushiyama C, Suzuki S et al. Urinary podocytes for the assessment of disease activity in lupus nephritis. Am J Med Sci 2000; 320: 112–116 9. Meyer TW, Bennett PH, Nelson RG. Podocyte(More)
BACKGROUND Coronary artery disease (CAD) is a significant contributor to excess mortality in renal transplant candidates with diabetes mellitus (DM). Prior studies relating to risk stratification for significant CAD in diabetics are confined to Caucasian type 1 DM patients. METHODS To assess the prevalence of clinically silent CAD and to identify(More)
Renal Transplantation has progressed from an experiment in surgery, nephrology, and immunology to the preferred means of renal replacement therapy for patients with end-stage renal disease. Patient and graft survival rates are spectacular in the short run and improving steadily in the long. The current state of the art reflects deepened understanding of the(More)
We evaluated a catheter-lock solution consisting of N-acetylcysteine, tigecycline, and heparin for catheter salvage in patients with hemodialysis catheter-associated bacteremia. Eighteen case patients received the catheter-lock solution for 14 days plus systemic antibiotic therapy. Treatment was successful for 15 (83%) of the 18 case patients within 90 days(More)