Titles:
Associate Professor of Surgery
Co-Director, Liver Intensive Care Unit

Contact:
Email: timltx@aol.com

Degrees:

Positions and Employment:

• 1984 -Feb-Apr - Presbyterian University Hospital, Pittsburgh, PA Internship, Plastic Surgery
• 1984 – 1985 - Hamilton General Hospital, Hamilton, Ontario, Internship, General Surgery
• 1985 – 1989 - Chedoke-McMaster Hospitals, Hamilton, Ontario Residency, General Surgery
• 1989 – 1992 - Children’s, Presbyterian, VA Hosp., Pittsburgh, PA Multi-Organ Transplantation Fellowship
• 1991 – 1992 - Veterans Administration Medical Center Clinical Instructor in Surgery
• 1992 – 1994 - University of Pittsburgh School of Medicine Visiting Assistant Professor of Surgery
• 1992 – 1994 - Veterans Administration Medical Center Chief, Liver Transplantation
• 1994 – 2000 - University of Pittsburgh School of Medicine Assistant Professor of Surgery
• 1994 – 2000 - Veterans Administration Medical Center Chief, Liver Transplantation
  Co-Director, Surgical Intensive Care
• 2001 – Present - University of Pittsburgh School of Medicine Associate Professor of Surgery
• 2003 – Present - Presbyterian University Hospital, Pittsburgh, PA Co-Director, Liver Intensive Care Unit
• 2004 – Present - University of Pittsburgh School of Medicine Associate Professor of Critical Care Medicine
  

Professional Memberships:

• 1989 – Present - College of Physicians and Surgeons of Ontario
• 1989 – Present - Royal College of Physicians and Surgeons
• 1989 – Present - Canadian Association of General Surgeons
• 1989 – Present - American College of Surgeons
• 1989 – Present - Ontario Medical Association
• 1989 – Present - Canadian Medical Association
• 1994 – Present - Society of Critical Care Medicine
• 1995 – Present - International Liver Transplantation Society
• 1996 – Present - American Society of Transplant Surgeons
• 1996 – Present - The Transplantation Society
• 1996 – Present - American Association for the Study of Liver Diseases
• 1997 – Present- Association for Academic Surgery

Honors, Awards, and Distinctions:

• 1978 - Ontario Scholar, McMaster University
• 1978 – 1979 - Chancellor’s Scholarship, McMaster University
• 1979 - Sommerville Scholarship, McMaster University
• 1980 - The Simpson Prize, McMaster University
• 1981 - The J.W.L. Gill Scholarship, McMaster University
• 1981 - Dr. Harry Lyman Hooker Scholarship, McMaster University
• 1981 - National Science and Engineering Research Council Scholarship, McMaster University
• 1983 - McMaster University Representative/Surgery, American College of Surgeons
• 1994 – 1995 - Special Commendation Award for Service of U.S. Veterans in Need of Liver Transplantation,
  VAMC Pittsburgh, Department of Veterans Affairs
• 1996 - Citation for Service of U.S. Veterans, Military Order of the Purple Heart
  

Publications:

• Chang FY, Singh N, Gayowski T, et al. Thrombocytopenia in Liver Transplant Recipients. Transplantation, 69(1):70-75, 2000.

• Singh N, Paterson DL, Gayowski T, et al. Predicting Bacteremic Mortality in Liver Transplant Recipients. Liver Transplantation, 6(1):54-61.

• Taniguchi M, Shakil AO, Vargas H, Laskus T, Demetrius AJ, Gayowski T, et al. Clinical and Virologic Outcomes of Hepatitis B and C Viral Coinfection After Liver Transplantation: Effect of Viral Hepatitis D. Liver Transplantation, 6(1):92-96, 2000.

• Paterson DL, Gayowski T, Wannstedt CF, et al. Quality of life in long-term survivors after liver transplantation: impact of recurrent viral hepatitis C virus hepatitis. Clinical Transplantation, 14:48-54, 2000.

• Gayowski T, Singh N, Keyes, et al. Late-Onset Renal Failure After Liver Transplantation: Role of Post - transplant Alcohol Use. Transplantation, 69(3)383-388, 2000.

• Rogers J, Rohal S, Carrigan DR, Kusne S, Knox KK, Gayowski T, Wagener MM, Fung JJ, Singh N. Human Herpesvirus-6 in Liver Transplant Recipients. Transplantation, 69(12):2566-2578, 2000.

• Jain A, Reyes J, Kashyap R, Dodson SF, Demetris AJ, Ruppert K, Abu-Elmags K, Marsh W, Madariaga J, Mazariegos G, Geller D, Bonham A, Gayowski T, Cacciarelli T, Fontes P, Starzl TE, Fung JJ. Long-term survival after liver transplantation in 4,000 consecutive patients at a single center. Annals of Surgery, 232(4), 2000.

• Singh N, Paterson DL, Gayowski T, Wagener MM, Marino I. Cytomegalovirus antigenemia directed pre-emptive prophylaxis with oral versus I.V. ganciclovir for the prevention of cytomegalovirus disease in liver transplant recipients. Transplantation, 70(5):717-722, 2000.

• Singh N, Gayowski T, Rihs JD, Wagener MM, Marino IR. Evolving Trends in Multiple-Antibiotic-Resistant Bacteria in Liver Transplant Recipients: A Longitudinal Study of Antimicrobial Suceptibility Patterns. Liver Transplantation, 7(1):22-26, 2001.

• Singh N, Gayowski T, Wagener M. Posttransplantation Dialysis-Associated Infections: Morbidity and Impact on Outcome in Liver Transplant Recipients. Liver Transplantation-2001; 7(2):100-105.

• Singh N, Patterson DL, Gayowski T, Wagener MM, Marino IR. Preemptive prophylaxis with lipid preparation of amphotericin B for the prophylaxis of invasive fungal infections in high-risk liver transplant recipients. Transplantation 2001; 71:910-913.

• Singh N, Gayowski T, Wagener MM, Marino IR. Pretransplant dialysis associated morbidity and impact on fungal infections in liver transplant recipients. Liver Transplantation 2001;7:100-105.

• Hauser D, Gayowski T, Singh N. Bleeding complications precipitated by unrecognized gingko biloba use in a liver transplant recipient. Transplant International Transplant International 2002; 15:377-379.

• Singh N, Wagener MM, Marino IR, Gayowski T. Trends in invasive fungal infections in liver transplant recipients: correlation with evolution in transplantation practices. Transplantation 2002; 73: 63-67.

• Singh N, Husain S, Carrigan DR, Weck KE, Wagener MM, Gayowski T. Impact of viremia due to human herpesvirus-6 on the frequency and severity of recurrent HCV hepatitis in liver transplant recipients. Clin Transplantation 2002; 16:92-96.

• Singh N, Bentlejewski C, Carrigan DR, Gayowski T, Zeevi A. Persistent lack of human herpesvirus-6 specific T-helper cell response in liver transplant recipients. Transplantation Infect Dis 2002;4:50-63.

• Venkataramanan R, Zang S, Gayowski T, Singh N. Voriconazole inhibition of the metabolism of tacrolimus in liver transplant recipient and in human liver microsomes. Antimicrob Ag Chemother 2002;46:3091-3093.

• Singh N, Wagener MM, Gayowski T. Safety and efficacy of isoniazid chemoprophylaxis employed during liver transplant candidacy for the prevention of post-transplant M. tuberculosis infection. Transplantation 2002; 74:892-895.

• Muder R, Agarwala S, Mirani A, Gayowski T, Venkataramanan: Pharmacokinetics of Cefoperazone and Sulbactam in Liver Transplant Patients. J Clin Pharmacol 2002;42:1-7.

• Patterson DL, Rihs JD, Squier CS, Gayowski T, Singh N. Lack of efficacy of mupirocin in the prevention of infections with methicillin-resistant Staphylococcus aureus in liver transplant recipients and candidates. Transplantation 2003;75:194-198.

• Starzl T, Murase N, Abu-Elmagd K, Gray E, Shapiro R, Eghtesad B, Corry R, Jordan M, Fontes P, Gayowski T, Bond G, Scantlebury V, Potdar S, Randawa P, Wu T, Zeevi A, Nalesnik M, Woodward J, Marcos A, Trucco M, Demetris A, Fung J. Tolerogenic immunosuppression for organ transplantation. Lancet 2003; 361:1502.

• Singh N, Wagener MM, Gayowski T. Changing epidemiology and predictors of mortality in patients with spontaneous bacterial peritonitis at a liver transplant unit. Clin Microbial Infection 2003; 9(6):531-538.

• Singh N, Husain, deVera M, Cacciarelli TV, Gayowski T, Zeevi A. Cryptococcus neoformans infections in patients with cirrhosis and liver transplant candidates. Medicine 2004; 83:188-192.

• Sing N, Wagener MM, Obman A, Gayowski T. Temporal trends in bacteremias in liver transplant recipients: Shift towards gram-negative bacteria as predominant pathogens. Liver Transplantation 2004; 10:844-849.

Ongoing Research Support: