William Berquist

Professor of Pediatrics (Gastroenterology) at the Lucile Salter Packard Children's Hospital

Professional Education

Residency: UCLA Medical Center (1978) CA

Fellowship: UCLA Medical Center (1979) CA

Board Certification: Transplant Hepatology, American Board of Pediatrics (2006)

Board Certification: Pediatric Gastroenterology, American Board of Pediatrics (1990)

Board Certification: Pediatrics, American Board of Pediatrics (1980)

Internship: UCLA School of Medicine (1976) CA

Medical Education: Northwestern University Medical School (1975) IL

Ammonia control and neurocognitive outcome among urea cycle disorder patients treated with glycerol phenylbutyrate
Diaz, G. A., Krivitzky, L. S., Mokhtarani, M., Rhead, W., Bartley, J., & Lee, B. (2013). Ammonia control and neurocognitive outcome among urea cycle disorder patients treated with glycerol phenylbutyrate. HEPATOLOGY, 57(6), 2171-2179.

Evaluation of Ethanol Lock Therapy in Pediatric Patients on Long-Term Parenteral Nutrition
Pieroni, K. P., Nespor, C., Ng, M., Garcia, M., Hurwitz, M., & Kerner, J. A. (2013). Evaluation of Ethanol Lock Therapy in Pediatric Patients on Long-Term Parenteral Nutrition. NUTRITION IN CLINICAL PRACTICE, 28(2), 226-231.

ECHINOCANDIN AND ETHANOL LOCK THERAPY TREATMENT OF FUNGAL CATHETER INFECTIONS
Pieroni, K. P., Nespor, C., Poole, R. L., Kerner, J. A., & Berquist, W. E. (2013). ECHINOCANDIN AND ETHANOL LOCK THERAPY TREATMENT OF FUNGAL CATHETER INFECTIONS. PEDIATRIC INFECTIOUS DISEASE JOURNAL, 32(3), 289-291.

Impact of Immunosuppression on the Development of Epstein-Barr Virus (EBV) Viremia After Pediatric Liver Transplantation
Lu, B. R., Park, K. T., Hurwitz, M., Cox, K. L., & Berquist, W. E. (2013). Impact of Immunosuppression on the Development of Epstein-Barr Virus (EBV) Viremia After Pediatric Liver Transplantation. TRANSPLANTATION PROCEEDINGS, 45(1), 301-304.

Endoscopy in the management of pancreaticobiliary complications after liver, intestine, or composite visceral transplantation in children
Berquist, W. E. (2012). Endoscopy in the management of pancreaticobiliary complications after liver, intestine, or composite visceral transplantation in children. PEDIATRIC TRANSPLANTATION, 16(8), 815-817.

Urinary phenylacetylglutamine as dosing biomarker for patients with urea cycle disorders
Mokhtarani, M., DIAZ, G. A., Rhead, W., Lichter-Konecki, U., Bartley, J., & Scharschmidt, B. F. (2012). Urinary phenylacetylglutamine as dosing biomarker for patients with urea cycle disorders. MOLECULAR GENETICS AND METABOLISM, 107(3), 308-314.

A 15-Year-Old Girl with Dysphagia, Failure to Thrive
Ryan, C., Khan, M., Delgado, E., Berquist, W., & Longhurst, C. (2011). A 15-Year-Old Girl with Dysphagia, Failure to Thrive. PEDIATRIC ANNALS, 40(8), 397-400.

Immunophenotyping of Peripheral Eosinophils Demonstrates Activation in Eosinophilic Esophagitis
Tammie Nguyen, T., Gernez, Y., Fuentebella, J., Patel, A., Tirouvanziam, R., & Nadeau, K. C. (2011). Immunophenotyping of Peripheral Eosinophils Demonstrates Activation in Eosinophilic Esophagitis. JOURNAL OF PEDIATRIC GASTROENTEROLOGY AND NUTRITION, 53(1), 40-47.

Analysis of clinical variables associated with tolerance in pediatric liver transplant recipients
Talisetti, A., Hurwitz, M., Sarwal, M., Berquist, W., Castillo, R., & Cox, K. (2010). Analysis of clinical variables associated with tolerance in pediatric liver transplant recipients. PEDIATRIC TRANSPLANTATION, 14(8), 976-979.

Exfoliative Rejection in Intestinal Transplantation
Park, K. T., Berquist, W. L., Pai, R., & Triadafilopoulos, G. (2010). Exfoliative Rejection in Intestinal Transplantation. DIGESTIVE DISEASES AND SCIENCES, 55(12), 3336-3338.

Increased HLA-DR Expression on Tissue Eosinophils in Eosinophilic Esophagitis
Patel, A. J., Fuentebella, J., Gernez, Y., Nguyen, T., Bass, D., & Nadeau, K. (2010). Increased HLA-DR Expression on Tissue Eosinophils in Eosinophilic Esophagitis. JOURNAL OF PEDIATRIC GASTROENTEROLOGY AND NUTRITION, 51(3), 290-294.

Increased Number of Regulatory T Cells in Children With Eosinophilic Esophagitis
Fuentebella, J., Patel, A., Nguyen, T., Sanjanwala, B., Berquist, W., & Nadeau, K. (2010). Increased Number of Regulatory T Cells in Children With Eosinophilic Esophagitis. JOURNAL OF PEDIATRIC GASTROENTEROLOGY AND NUTRITION, 51(3), 283-289.

Long-term outcome following pediatric liver transplantation for metabolic disorders
Stevenson, T., Millan, M. T., Wayman, K., Berquist, W. E., Sarwal, M., & Enns, G. M. (2010). Long-term outcome following pediatric liver transplantation for metabolic disorders. PEDIATRIC TRANSPLANTATION, 14(2), 268-275.

Eotaxin and FGF enhance signaling through an extracellular signal-related kinase (ERK)-dependent pathway in the pathogenesis of Eosinophilic esophagitis.
Huang, J. J., Joh, J. W., Fuentebella, J., Patel, A., Nguyen, T., & Nadeau, K. C. (2010). Eotaxin and FGF enhance signaling through an extracellular signal-related kinase (ERK)-dependent pathway in the pathogenesis of Eosinophilic esophagitis. Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology, 6(1), 25-?.

Transcription Factors as Disease Indicators in Eosinophilic Esophagitis
Nguyen, T., Gernez, Y., Fuentella, J., Patel, A., Tirouvanziam, R., & Nadeau, K. (2010). Transcription Factors as Disease Indicators in Eosinophilic Esophagitis. CLINICAL IMMUNOLOGY, 135, S81-S82.

Novel Deoxyguanosine Kinase Gene Mutations and Viral Infection Predispose Apparently Healthy Children to Fulminant Liver Failure
Shieh, J. Tc., Berquist, W. E., Zhang, Q., Chou, P.-C., Wong, L.-J. C., & Enns, G. M. (2009). Novel Deoxyguanosine Kinase Gene Mutations and Viral Infection Predispose Apparently Healthy Children to Fulminant Liver Failure. JOURNAL OF PEDIATRIC GASTROENTEROLOGY AND NUTRITION, 49(1), 130-132.

Identifying Eosinophilic Esophagitis through Evaluation of Plasma Biomarkers
Joh, J., Huang, J., Nguyen, T., Vishwaanath, N., Patel, A., & Nadeau, K. (2009). Identifying Eosinophilic Esophagitis through Evaluation of Plasma Biomarkers. JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY, 123(2), S169-S169.

Combined liver-kidney transplantation in children: Indications and outcome
Sutherland, S. M., Alexander, S. R., Sarwal, M. M., Berquist, W. E., & Concepcion, W. (2008). Combined liver-kidney transplantation in children: Indications and outcome. PEDIATRIC TRANSPLANTATION, 12(8), 835-846.

SIR 2008 annual meeting film panel case: Abernethy malformation
Sze, D. Y., & Berquist, W. E. (2008). SIR 2008 annual meeting film panel case: Abernethy malformation. JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY, 19(9), 1274-1277.

Non-adherence to post-transplant care: Prevalence, risk factors and outcomes in adolescent liver transplant recipients
Berquist, R. K., Berquist, W. E., Esquivel, C. O., Cox, K. L., Wayman, K. I., & Litt, I. F. (2008). Non-adherence to post-transplant care: Prevalence, risk factors and outcomes in adolescent liver transplant recipients. PEDIATRIC TRANSPLANTATION, 12(2), 194-200.

Cold agglutinin syndrome in pediatric liver transplant recipients
Wong, W., Merker, J. D., Nguyen, C., Berquist, W., Jeng, M., & Fontaine, M. J. (2007). Cold agglutinin syndrome in pediatric liver transplant recipients. PEDIATRIC TRANSPLANTATION, 11(8), 931-936.

Outcomes of transplantation in children with primary hepatic malignancy
Beaunoyer, M., Vanatta, J. M., Oyihara, M., Strichartz, D., Dahl, G., & Esquivel, C. O. (2007). Outcomes of transplantation in children with primary hepatic malignancy. PEDIATRIC TRANSPLANTATION, 11(6), 655-660.

Pediatric intestinal transplantation at Packard children's hospital/Stanford University medical center: Report of a four-year experience
Castillo, R. O., Zarge, R., Cox, K., Strichartz, D., Berquist, W., & Esquivel, C. O. (2006). Pediatric intestinal transplantation at Packard children's hospital/Stanford University medical center: Report of a four-year experience. TRANSPLANTATION PROCEEDINGS, 38(6), 1716-1717.

Parenteral nutrition-associated cholestasis related to parental care.
Wu, P. A., Kerner, J. A., & Berquist, W. E. (2006). Parenteral nutrition-associated cholestasis related to parental care. Nutrition in clinical practice , 21(3), 291-295.

Adolescent non-adherence: Prevalence and consequences in liver transplant recipients
Berquist, R. K., Berquist, W. E., Esquivel, C. O., Cox, K. L., Wayman, K. I., & Litt, I. F. (2006). Adolescent non-adherence: Prevalence and consequences in liver transplant recipients. PEDIATRIC TRANSPLANTATION, 10(3), 304-310.

Hepatic infantile hemangioendothelioma with unusual manifestations
Burtelow, M., Garcia, T., Lucile, S., Cox, K., Berquist, W., & Kemer, J. (2006). Hepatic infantile hemangioendothelioma with unusual manifestations. JOURNAL OF PEDIATRIC GASTROENTEROLOGY AND NUTRITION, 42(1), 109-113.

Epstein-Barr virus-associated peripheral T-cell lymphoma and hemophagocytic syndrome arising after liver transplantation: Case report and review of the literature
George, T. I., Jeng, M., Berquist, W., Cherry, A. M., Link, M. P., & Arber, D. A. (2005). Epstein-Barr virus-associated peripheral T-cell lymphoma and hemophagocytic syndrome arising after liver transplantation: Case report and review of the literature. PEDIATRIC BLOOD & CANCER, 44(3), 270-276.

Complete immunosuppressive withdrawal as a uniform approach to post-transplant lymphoproliferative disease in pediatric liver transplantation
Hurwitz, M., Desai, D. M., Cox, K. L., Berquist, W. E., Esquivel, C. O., & Millan, M. T. (2004). Complete immunosuppressive withdrawal as a uniform approach to post-transplant lymphoproliferative disease in pediatric liver transplantation. PEDIATRIC TRANSPLANTATION, 8(3), 267-272.

One hundred percent patient and kidney allograft survival with simultaneous liver and kidney transplantation in infants with primary hyperoxaluria: A single-center experience
Millan, M. T., Berquist, W. E., So, S. K., Sarwal, M. M., Wayman, K. I., & Esquivel, C. O. (2003). One hundred percent patient and kidney allograft survival with simultaneous liver and kidney transplantation in infants with primary hyperoxaluria: A single-center experience. TRANSPLANTATION, 76(10), 1458-1463.

Thirteen years' experience in pediatric liver transplantation: Differences between tacrolimus and cyclosporine
Zajicek, A., Esquivel, C., MILLAN, M., Cox, K., Berquist, R., & Berquist, W. (2002). Thirteen years' experience in pediatric liver transplantation: Differences between tacrolimus and cyclosporine. TRANSPLANTATION PROCEEDINGS, 34(5), 1976-1978.

Paediatric liver transplantation: Indications, timing and medical complications
Cox, K. L., Berquist, W. E., & Castillo, R. O. (1999). Paediatric liver transplantation: Indications, timing and medical complications. JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, 14, S61-S66.

Increased dosage requirement and rejection after neoral conversion in pediatric liver transplant patients
Cao, S., Cox, K. L., Berquist, W., So, S., Concepcion, W., & Esquivel, C. O. (1998). Increased dosage requirement and rejection after neoral conversion in pediatric liver transplant patients. TRANSPLANTATION PROCEEDINGS, 30(8), 4322-4324.

Outcome of nissen fundoplication using intraoperative manometry in children
Inge, T. H., Carmeci, C., Ohara, L. J., Berquist, W. B., & Cahill, J. L. (1998). Outcome of nissen fundoplication using intraoperative manometry in children. JOURNAL OF PEDIATRIC SURGERY, 33(11), 1614-1617.

Posttransplant lymphoproliferative disorders and gastrointestinal manifestations of Epstein-Barr virus infection in children following liver transplantation
Cao, S., Cox, K., Esquivel, C. O., Berquist, W., Concepcion, W., & So, S. (1998). Posttransplant lymphoproliferative disorders and gastrointestinal manifestations of Epstein-Barr virus infection in children following liver transplantation. TRANSPLANTATION, 66(7), 851-856.

New, improved Helicobacter pylori eradication therapy in children.
Berquist, W. E. (1998). New, improved Helicobacter pylori eradication therapy in children. Journal of pediatric gastroenterology and nutrition, 26(3), 360-361.

Liver transplantation at Stanford University Medical Center.
Millan, M. T., Keeffe, E. B., Berquist, W. E., Castillo, R. O., Cox, K. L., & Esquivel, C. O. (1998). Liver transplantation at Stanford University Medical Center. Clinical transplants, 287-296.

Wernicke encephalopathy and Beriberi during total parenteral nutrition attributable to multivitamin infusion shortage
Hahn, J. S., Berquist, W., Alcorn, D. M., Chamberlain, L., & Bass, D. (1998). Wernicke encephalopathy and Beriberi during total parenteral nutrition attributable to multivitamin infusion shortage. PEDIATRICS, 101(1).

Cholic acid synthesis is reduced in pediatric liver recipients during graft dysfunction due to ischemic injury and allograft rejection
Lang, T., Sendl, A. F., Esquivel, C. O., Berquist, W. E., & Cox, K. L. (1997). Cholic acid synthesis is reduced in pediatric liver recipients during graft dysfunction due to ischemic injury and allograft rejection. TRANSPLANTATION, 64(11), 1585-1590.

Factors affecting survival after orthotopic liver transplantation in infants
Cacciarelli, T. V., Esquivel, C. O., Moore, D. H., Cox, K. L., Berquist, W. E., & So, S. Ks. (1997). Factors affecting survival after orthotopic liver transplantation in infants. TRANSPLANTATION, 64(2), 242-248.

Potential effect of cyclosporin A in formation of cholesterol gallstones in pediatric liver transplant recipients
Cao, S., Cox, K., So, S. Sk., Berquist, W., Lee, S. P., & Esquivel, C. O. (1997). Potential effect of cyclosporin A in formation of cholesterol gallstones in pediatric liver transplant recipients. DIGESTIVE DISEASES AND SCIENCES, 42(7), 1409-1415.

Emergency transjugular intrahepatic portosystemic shunt (TIPS) in an infant: A case report
Cao, S., Monge, H., Semba, C., Cox, K. L., Berquist, W., & Esquivel, C. O. (1997). Emergency transjugular intrahepatic portosystemic shunt (TIPS) in an infant: A case report. JOURNAL OF PEDIATRIC SURGERY, 32(1), 125-127.

Rapid development of hepatocellular siderosis after liver transplantation for neonatal hemochromatosis
Egawa, H., Berquist, W., GARCIAKENNEDY, R., Cox, K., Knisely, A. S., & Esquivel, C. O. (1996). Rapid development of hepatocellular siderosis after liver transplantation for neonatal hemochromatosis. TRANSPLANTATION, 62(10), 1511-1513.

Orthotopic liver transplantation for hepatocellular carcinoma - Factors affecting long-term patient survival
Ojogho, O. N., So, S. Ks., Keeffe, E. B., Berquist, W., Concepcion, W., & Esquivel, C. O. (1996). Orthotopic liver transplantation for hepatocellular carcinoma - Factors affecting long-term patient survival. ARCHIVES OF SURGERY, 131(9), 935-939.

Continuous venovenous hemofiltration with dialysis in combination with total hepatectomy and portocaval shunting - Bridge to liver transplantation
Hammer, G. B., So, S. Ks., ALUZRI, A., Conley, S. B., Concepcion, W., & Esquivel, C. O. (1996). Continuous venovenous hemofiltration with dialysis in combination with total hepatectomy and portocaval shunting - Bridge to liver transplantation. TRANSPLANTATION, 62(1), 130-132.

Oral tacrolimus (FK506) induction therapy in pediatric orthotopic liver transplantation
Cacciarelli, T. V., Esquivel, C. O., Cox, K. L., Hayashi, M., Berquist, W. E., & So, S. Ks. (1996). Oral tacrolimus (FK506) induction therapy in pediatric orthotopic liver transplantation. TRANSPLANTATION, 61(8), 1188-1192.

FULMINANT HEPATIC-FAILURE FOLLOWING VARICELLA-ZOSTER INFECTION IN A CHILD - A CASE-REPORT OF SUCCESSFUL TREATMENT WITH LIVER-TRANSPLANTATION AND PERIOPERATIVE ACYCLOVIR
Tojimbara, T., So, S. K., Cox, K. L., Berquist, W. E., Egawa, H., & Esquivel, C. O. (1995). FULMINANT HEPATIC-FAILURE FOLLOWING VARICELLA-ZOSTER INFECTION IN A CHILD - A CASE-REPORT OF SUCCESSFUL TREATMENT WITH LIVER-TRANSPLANTATION AND PERIOPERATIVE ACYCLOVIR. TRANSPLANTATION, 60(9), 1052-1053.

LIVER-TRANSPLANTATION IN A CHILD WITH SICKLE-CELL-ANEMIA
Lang, T., Berquist, W. E., So, S. K., Cox, K. L., RICH, E. J., & Esquivel, C. O. (1995). LIVER-TRANSPLANTATION IN A CHILD WITH SICKLE-CELL-ANEMIA. TRANSPLANTATION, 59(10), 1490-1492.

AN INCREASED INCIDENCE OF EPSTEIN-BARR-VIRUS INFECTION AND LYMPHOPROLIFERATIVE DISORDER IN YOUNG-CHILDREN ON FK506 AFTER LIVER-TRANSPLANTATION
Cox, K. L., LAWRENCEMIYASAKI, L. S., GARCIAKENNEDY, R., Lennette, E. T., Martinez, O. M., & Esquivel, C. O. (1995). AN INCREASED INCIDENCE OF EPSTEIN-BARR-VIRUS INFECTION AND LYMPHOPROLIFERATIVE DISORDER IN YOUNG-CHILDREN ON FK506 AFTER LIVER-TRANSPLANTATION. TRANSPLANTATION, 59(4), 524-529.

Biofeedback therapy for anorectal disorders in children.
Berquist, W. E. (1995). Biofeedback therapy for anorectal disorders in children. Seminars in pediatric surgery, 4(1), 48-53.

HEPATOCELLULAR-CARCINOMA AND LIVER-CELL DYSPLASIA IN CHILDREN WITH CHRONIC LIVER-DISEASE
Esquivel, C. O., Gutierrez, C., Cox, K. L., GARCIAKENNEDY, R., Berquist, W., & Concepcion, W. (1994). HEPATOCELLULAR-CARCINOMA AND LIVER-CELL DYSPLASIA IN CHILDREN WITH CHRONIC LIVER-DISEASE. JOURNAL OF PEDIATRIC SURGERY, 29(11), 1465-1469.