Tommy Ivanics

Impact of the acuity circle model for liver allocation on multivisceral transplant candidates

Ivanics, Tommy; Vianna, Rodrigo; Kubal, Chandrashekhar A.; Iyer, Kishore R. et al.

Part of American Journal of Transplantation, p. 464-473, 2022

• DOI for Impact of the acuity circle model for liver allocation on multivisceral transplant candidates

The Toronto Postliver Transplantation Hepatocellular Carcinoma Recurrence Calculator: A Machine Learning Approach

Ivanics, Tommy; Nelson, Walter; Patel, Madhukar S.; Claasen, Marco P.A.W. et al.

Part of Liver transplantation, p. 593-602, 2022

• DOI for The Toronto Postliver Transplantation Hepatocellular Carcinoma Recurrence Calculator: A Machine Learning Approach

Survival After Liver Transplantation: An International Comparison Between the United States and the United Kingdom in the Years 2008-2016

Ivanics, Tommy; Wallace, David; Abreu, Phillipe; Claasen, Marco PAW et al.

Part of Transplantation, 2021

• DOI for Survival After Liver Transplantation: An International Comparison Between the United States and the United Kingdom in the Years 2008-2016

A Pre-TACE Radiomics Model to Predict HCC Progression and Recurrence in Liver Transplantation. A Pilot Study on a Novel Biomarker

Ivanics, Tommy; Salinas-Miranda, Emmanuel; Abreu, Phillipe; Khalvati, Farzad et al.

Part of Transplantation, 2021

• DOI for A Pre-TACE Radiomics Model to Predict HCC Progression and Recurrence in Liver Transplantation. A Pilot Study on a Novel Biomarker

Trends in indications and outcomes of liver transplantation in Canada: A multicenter retrospective study

Ivanics, Tommy; Shwaartz, Chaya; Claasen, Marco P. A. W.; Patel, Madhukar S. et al.

Part of Transplant International, p. 1444-1454, 2021

• DOI for Trends in indications and outcomes of liver transplantation in Canada: A multicenter retrospective study

Dynamic α-Fetoprotein Response and Outcomes After Liver Transplant for Hepatocellular Carcinoma

Halazun, Karim J.; Rosenblatt, Russell E.; Mehta, Neil; Lai, Quirino et al.

Part of JAMA Surgery, 2021

• DOI for Dynamic α-Fetoprotein Response and Outcomes After Liver Transplant for Hepatocellular Carcinoma

Blood Cell Salvage and Autotransfusion Does Not Worsen Oncologic Outcomes Following Liver Transplantation with Incidental Hepatocellular Carcinoma: A Propensity Score-Matched Analysis

Ivanics, Tommy; Shubert, Christopher R.; Muaddi, Hala; Claasen, Marco P. A. W. et al.

Part of Annals of Surgical Oncology, p. 6816-6825, 2021

• DOI for Blood Cell Salvage and Autotransfusion Does Not Worsen Oncologic Outcomes Following Liver Transplantation with Incidental Hepatocellular Carcinoma: A Propensity Score-Matched Analysis

Artificial intelligence in transplantation (machine-learning classifiers and transplant oncology)

Ivanics, Tommy; Patel, Madhukar S.; Erdman, Lauren; Sapisochin, Gonzalo

Part of Current Opinion in Organ Transplantation, p. 426-434, 2020

• DOI for Artificial intelligence in transplantation (machine-learning classifiers and transplant oncology)

Retransplantation outcomes for hepatitis C in the United States before and after direct‐acting antiviral introduction

Ivanics, Tommy; Rizzari, Michael; Moonka, Dilip; Al‐Kurd, Abbas et al.

Part of American Journal of Transplantation, 2020

• DOI for Retransplantation outcomes for hepatitis C in the United States before and after direct‐acting antiviral introduction

Patient-derived xenograft cryopreservation and reanimation outcomes are dependent on cryoprotectant type

Ivanics, Tommy; Bergquist, John R; Liu, Gang; Kim, Michael P. et al.

Part of Laboratory Investigation, p. 947-956, 2018

• DOI for Patient-derived xenograft cryopreservation and reanimation outcomes are dependent on cryoprotectant type

Small Cell Carcinoma of the Pancreas

Ivanics, Tommy; Bergquist, John R.; Shubert, Christopher R.; Smoot, Rory L. et al.

Part of Pancreas, p. 1461-1466, 2016

• DOI for Small Cell Carcinoma of the Pancreas

Mixed hepatocellular and cholangiocarcinoma: a rare tumor with a mix of parent phenotypic characteristics

Bergquist, John R.; Groeschl, Ryan T.; Ivanics, Tommy; Shubert, Christopher R. et al.

Part of HPB, p. 886-892, 2016

• DOI for Mixed hepatocellular and cholangiocarcinoma: a rare tumor with a mix of parent phenotypic characteristics

Implications of CA19-9 elevation for survival, staging, and treatment sequencing in intrahepatic cholangiocarcinoma: A national cohort analysis

Bergquist, John R.; Ivanics, Tommy; Storlie, Curtis B.; Groeschl, Ryan T. et al.

Part of Journal of Surgical Oncology, p. 475-482, 2016

• DOI for Implications of CA19-9 elevation for survival, staging, and treatment sequencing in intrahepatic cholangiocarcinoma: A national cohort analysis

Direct-acting antivirals lower mortality and recurrence in HCV-related hepatocellular carcinoma post liver resection: A multicenter international study

Choi, Woo Jin; Ivanics, Tommy; Claasen, Marco; Magyar, Christian T. J. et al.

Part of Surgery, 2025

• DOI for Direct-acting antivirals lower mortality and recurrence in HCV-related hepatocellular carcinoma post liver resection: A multicenter international study
• Download full text (pdf) of Direct-acting antivirals lower mortality and recurrence in HCV-related hepatocellular carcinoma post liver resection: A multicenter international study

Comparative analysis of treatment modalities for solitary, small (≤3 cm) hepatocellular carcinoma: A systematic review and network meta-analysis of oncologic outcomes

Choi, Woo Jin; Ivanics, Tommy; Rajendran, Luckshi; Li, Zhihao et al.

Part of Surgery, 2025

• DOI for Comparative analysis of treatment modalities for solitary, small (≤3 cm) hepatocellular carcinoma: A systematic review and network meta-analysis of oncologic outcomes
• Download full text (pdf) of Comparative analysis of treatment modalities for solitary, small (≤3 cm) hepatocellular carcinoma: A systematic review and network meta-analysis of oncologic outcomes

Temporal evolution of living donor liver transplantation survival: A United Network for Organ Sharing registry study

Magyar, Christian T. J.; Li, Zhihao; Aceituno, Laia; Claasen, Marco P. A. W. et al.

Part of American Journal of Transplantation, p. 406-416, 2025

• DOI for Temporal evolution of living donor liver transplantation survival: A United Network for Organ Sharing registry study

Pursuing living donor liver transplantation improves outcomes of patients with autoimmune liver diseases: An intention-to-treat analysis

Jones, Owen; Claasen, Marco P. A. W.; Ivanics, Tommy; Choi, Woo Jin et al.

Part of Liver transplantation, p. 785-795, 2024

• DOI for Pursuing living donor liver transplantation improves outcomes of patients with autoimmune liver diseases: An intention-to-treat analysis

Living Donor Liver Transplantation for Hepatocellular Carcinoma Within and Outside Traditional Selection Criteria

Ivanics, Tommy; Claasen, Marco P. A. W.; Samstein, Benjamin; Emond, Jean C. et al.

Part of Annals of Surgery, p. 104-111, 2024

• DOI for Living Donor Liver Transplantation for Hepatocellular Carcinoma Within and Outside Traditional Selection Criteria

Direct-acting antivirals lower mortality and recurrence in HCV-related hepatocellular carcinoma post liver resection: A multicenter international study

Choi, Woo Jin; Ivanics, Tommy; Claasen, Marco; Magyar, Christian T. J. et al.

Part of Surgery, 2025

• DOI for Direct-acting antivirals lower mortality and recurrence in HCV-related hepatocellular carcinoma post liver resection: A multicenter international study
• Download full text (pdf) of Direct-acting antivirals lower mortality and recurrence in HCV-related hepatocellular carcinoma post liver resection: A multicenter international study

Temporal evolution of living donor liver transplantation survival: A United Network for Organ Sharing registry study

Magyar, Christian T. J.; Li, Zhihao; Aceituno, Laia; Claasen, Marco P. A. W. et al.

Part of American Journal of Transplantation, p. 406-416, 2025

• DOI for Temporal evolution of living donor liver transplantation survival: A United Network for Organ Sharing registry study

Pursuing living donor liver transplantation improves outcomes of patients with autoimmune liver diseases: An intention-to-treat analysis

Jones, Owen; Claasen, Marco P. A. W.; Ivanics, Tommy; Choi, Woo Jin et al.

Part of Liver transplantation, p. 785-795, 2024

• DOI for Pursuing living donor liver transplantation improves outcomes of patients with autoimmune liver diseases: An intention-to-treat analysis

Living Donor Liver Transplantation for Hepatocellular Carcinoma Within and Outside Traditional Selection Criteria

Ivanics, Tommy; Claasen, Marco P. A. W.; Samstein, Benjamin; Emond, Jean C. et al.

Part of Annals of Surgery, p. 104-111, 2024

• DOI for Living Donor Liver Transplantation for Hepatocellular Carcinoma Within and Outside Traditional Selection Criteria

Outcomes of liver transplantation in non-alcoholic steatohepatitis (NASH) versus non-NASH associated hepatocellular carcinoma

Rajendran, Luckshi; Perez, Carla F. Murillo; Ivanics, Tommy; Claasen, Marco P. A. W. et al.

Part of HPB, p. 556-567, 2023

• DOI for Outcomes of liver transplantation in non-alcoholic steatohepatitis (NASH) versus non-NASH associated hepatocellular carcinoma

An international multicentre evaluation of treatment strategies for combined hepatocellular-cholangiocarcinoma

Claasen, Marco P. A. W.; Ivanics, Tommy; Beumer, Berend R.; de Wilde, Roeland F. et al.

Part of JHEP Reports, 2023

• DOI for An international multicentre evaluation of treatment strategies for combined hepatocellular-cholangiocarcinoma
• Download full text (pdf) of An international multicentre evaluation of treatment strategies for combined hepatocellular-cholangiocarcinoma

Association of Viral Hepatitis Status and Post-hepatectomy Outcomes in the Era of Direct-Acting Antivirals

Rajendran, Luckshi; Choi, Woo Jin; Muaddi, Hala; Ivanics, Tommy et al.

Part of Annals of Surgical Oncology, p. 2793-2802, 2023

• DOI for Association of Viral Hepatitis Status and Post-hepatectomy Outcomes in the Era of Direct-Acting Antivirals

ASO Visual Abstract: The Association of Viral Hepatitis Status and Post-hepatectomy Outcomes in the Era of Direct-Acting Antivirals

Rajendran, Luckshi; Choi, Woo Jin; Muaddi, Hala; Ivanics, Tommy et al.

Part of Annals of Surgical Oncology, p. 2805-2806, 2023

• DOI for ASO Visual Abstract: The Association of Viral Hepatitis Status and Post-hepatectomy Outcomes in the Era of Direct-Acting Antivirals

Machine learning-based mortality prediction models using national liver transplantation registries are feasible but have limited utility across countries

Ivanics, Tommy; So, Delvin; Claasen, Marco P. A. W.; Wallace, David et al.

Part of American Journal of Transplantation, p. 64-71, 2023

• DOI for Machine learning-based mortality prediction models using national liver transplantation registries are feasible but have limited utility across countries

Lymphopenia at the time of transplant is associated with short-term mortality after deceased donor liver transplantation

Kitajima, Toshihiro; Rajendran, Luckshi; Lisznyai, Eric; Lu, Mei et al.

Part of American Journal of Transplantation, p. 248-256, 2023

• DOI for Lymphopenia at the time of transplant is associated with short-term mortality after deceased donor liver transplantation

Preoperative neutrophil-to-lymphocyte ratio is prognostic for early recurrence after curative intrahepatic cholangiocarcinoma resection

Choi, Woo Jin; Murillo Perez, Fiorella; Gravely, Annabel; Ivanics, Tommy et al.

Part of Annals of Hepato-Biliary-Pancreatic Surgery, p. 158-165, 2023

• DOI for Preoperative neutrophil-to-lymphocyte ratio is prognostic for early recurrence after curative intrahepatic cholangiocarcinoma resection
• Download full text (pdf) of Preoperative neutrophil-to-lymphocyte ratio is prognostic for early recurrence after curative intrahepatic cholangiocarcinoma resection

ASO Visual Abstract: Optimizing Circulating Tumor DNA Use in the Perioperative Setting for Intrahepatic Cholangiocarcinoma-Diagnosis, Screening, Minimal Residual Disease Detection, and Treatment Response Monitoring

Choi, Woo Jin; Ivanics, Tommy; Gravely, Annabel; Gallinger, Steven et al.

Part of Annals of Surgical Oncology, p. 3866-3867, 2023

• DOI for ASO Visual Abstract: Optimizing Circulating Tumor DNA Use in the Perioperative Setting for Intrahepatic Cholangiocarcinoma-Diagnosis, Screening, Minimal Residual Disease Detection, and Treatment Response Monitoring

Outcomes after liver transplantation using deceased after circulatory death donors: A comparison of outcomes in the UK and the US

Ivanics, Tommy; Claasen, Marco P. A. W.; Patel, Madhukar S. S.; Giorgakis, Emmanouil et al.

Part of Liver international, p. 1107-1119, 2023

• DOI for Outcomes after liver transplantation using deceased after circulatory death donors: A comparison of outcomes in the UK and the US

Long-term outcomes of retransplantation after live donor liver transplantation: A Western experience

Ivanics, Tommy; Limkemann, Ashley; Patel, Madhukar S.; Claasen, Marco P. A. W. et al.

Part of Surgery, p. 529-536, 2023

• DOI for Long-term outcomes of retransplantation after live donor liver transplantation: A Western experience

Trends in liver transplantation for autoimmune liver diseases: a Canadian study

Murillo Perez, Carla F.; Ivanics, Tommy; Claasen, Marco P. A. W.; Yoon, Peter et al.

Part of Canadian journal of surgery, 2022

• DOI for Trends in liver transplantation for autoimmune liver diseases: a Canadian study
• Download full text (pdf) of Trends in liver transplantation for autoimmune liver diseases: a Canadian study

Reply

Ivanics, Tommy; Claasen, Marco Paw; Patel, Madhukar S.; Hansen, Bettina E. et al.

Part of Hepatology, 2022

• DOI for Reply

Is it safe to administer neoadjuvant chemotherapy to patients undergoing hepatectomy for intrahepatic cholangiocarcinoma?: ACS-NSQIP propensity-matched analysis

Choi, Woo Jin; Ivanics, Tommy; Claasen, Marco P. A. W.; Gallinger, Steven et al.

Part of HPB, p. 1535-1542, 2022

• DOI for Is it safe to administer neoadjuvant chemotherapy to patients undergoing hepatectomy for intrahepatic cholangiocarcinoma?: ACS-NSQIP propensity-matched analysis

Novel Benchmark Values for Redo Liver Transplantation Does the Outcome Justify the Effort?

Abbassi, Fariba; Gero, Daniel; Muller, Xavier; Bueno, Alba et al.

Part of Annals of Surgery, p. 860-867, 2022

• DOI for Novel Benchmark Values for Redo Liver Transplantation Does the Outcome Justify the Effort?

Time-varying Comparison of All-cause Mortality After Liver Transplantation Between Recipients With and Without Hepatocellular Carcinoma: A Population-based Cohort Study Using the United Kingdom Liver Transplant Registry

Sehjal, Jyoti; Sharples, Linda D.; Keogh, Ruth H.; Walker, Kate et al.

Part of Transplantation, 2022

• DOI for Time-varying Comparison of All-cause Mortality After Liver Transplantation Between Recipients With and Without Hepatocellular Carcinoma: A Population-based Cohort Study Using the United Kingdom Liver Transplant Registry

Dynamic risk profiling of HCC recurrence after curative intent liver resection

Ivanics, Tommy; Murillo Perez, Carla Fiorella; Claasen, Marco P. A. W.; Patel, Madhukar S. et al.

Part of Hepatology, p. 1291-1301, 2022

• DOI for Dynamic risk profiling of HCC recurrence after curative intent liver resection

Improvements in liver transplant outcomes in patients with HCV/HIV coinfection after the introduction of direct‐acting antiviral therapies

Shimada, Shingo; Ivanics, Tommy; Kitajima, Toshihiro; Shamaa, Tayseer et al.

Part of Transplant Infectious Disease, 2022

• DOI for Improvements in liver transplant outcomes in patients with HCV/HIV coinfection after the introduction of direct‐acting antiviral therapies

Improved Survival With Higher-risk Donor Grafts in Liver Transplant With Acute-on-chronic Liver Failure

Kitajima, Toshihiro; Kuno, Yasutaka; Ivanics, Tommy; Lu, Mei et al.

Part of Transplantation direct, 2022

• DOI for Improved Survival With Higher-risk Donor Grafts in Liver Transplant With Acute-on-chronic Liver Failure
• Download full text (pdf) of Improved Survival With Higher-risk Donor Grafts in Liver Transplant With Acute-on-chronic Liver Failure

Systematic Review and Meta-Analysis of Prognostic Factors for Early Recurrence in Intrahepatic Cholangiocarcinoma After Curative-Intent Resection

Choi, Woo Jin; Williams, Phil J.; Claasen, Marco P. A. W.; Ivanics, Tommy et al.

Part of Annals of Surgical Oncology, p. 4337-4353, 2022

• DOI for Systematic Review and Meta-Analysis of Prognostic Factors for Early Recurrence in Intrahepatic Cholangiocarcinoma After Curative-Intent Resection

Superior long‐term outcome of Adult Living Donor Liver Transplantation: A cumulative single‐center cohort study with 20 years follow‐up

Goto, Toru; Ivanics, Tommy; Cattral, Mark S.; Reichman, Trevor et al.

Part of Liver transplantation, p. 834-842, 2022

• DOI for Superior long‐term outcome of Adult Living Donor Liver Transplantation: A cumulative single‐center cohort study with 20 years follow‐up

Liver Transplantation for intrahepatic cholangiocarcinoma: Ready for prime time?

Sapisochin, Gonzalo; Ivanics, Tommy; Heimbach, Julie

Part of Hepatology, p. 455-472, 2022

• DOI for Liver Transplantation for intrahepatic cholangiocarcinoma: Ready for prime time?

Transplant Oncology in locally advanced intrahepatic cholangiocarcinoma: one more step on a long road

Ivanics, Tommy; Toso, Christian; Ilyas, Sumera I.; Sapisochin, Gonzalo

Part of American Journal of Transplantation, p. 685-686, 2022

• DOI for Transplant Oncology in locally advanced intrahepatic cholangiocarcinoma: one more step on a long road

Experience with solid organ transplantation in patients with previous immunotherapy treatment is still limited but this is changing: The survey-based view of the global transplant society

Ivanics, Tommy; Claasen, M. paw; Al-Adra, D.; Sapisochin, G.

Part of Transplant Immunology, 2022

• DOI for Experience with solid organ transplantation in patients with previous immunotherapy treatment is still limited but this is changing: The survey-based view of the global transplant society
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Long-term outcomes of laparoscopic liver resection for hepatocellular carcinoma: A propensity score matched analysis of a high-volume North American center

Ivanics, Tommy; Claasen, Marco Paw; Patel, Madhukar S.; Rajendran, Luckshi et al.

Part of Surgery, p. 982-991, 2022

• DOI for Long-term outcomes of laparoscopic liver resection for hepatocellular carcinoma: A propensity score matched analysis of a high-volume North American center

Long-term outcomes of ablation, liver resection, and liver transplant as first-line treatment for solitary HCC of 3 cm or less using an intention-to-treat analysis: A retrospective cohort study

Ivanics, Tommy; Rajendran, L.; Abreu, P. A.; Claasen, M. P. A. W. et al.

Part of Annals of Medicine and Surgery, 2022

• DOI for Long-term outcomes of ablation, liver resection, and liver transplant as first-line treatment for solitary HCC of 3 cm or less using an intention-to-treat analysis: A retrospective cohort study
• Download full text (pdf) of Long-term outcomes of ablation, liver resection, and liver transplant as first-line treatment for solitary HCC of 3 cm or less using an intention-to-treat analysis: A retrospective cohort study

Impact of the acuity circle model for liver allocation on multivisceral transplant candidates

Ivanics, Tommy; Vianna, Rodrigo; Kubal, Chandrashekhar A.; Iyer, Kishore R. et al.

Part of American Journal of Transplantation, p. 464-473, 2022

• DOI for Impact of the acuity circle model for liver allocation on multivisceral transplant candidates

The Toronto Postliver Transplantation Hepatocellular Carcinoma Recurrence Calculator: A Machine Learning Approach

Ivanics, Tommy; Nelson, Walter; Patel, Madhukar S.; Claasen, Marco P.A.W. et al.

Part of Liver transplantation, p. 593-602, 2022

• DOI for The Toronto Postliver Transplantation Hepatocellular Carcinoma Recurrence Calculator: A Machine Learning Approach

Low utilization of adult-to-adult LDLT in Western countries despite excellent outcomes: International multicenter analysis of the US, the UK, and Canada

Ivanics, Tommy; Wallace, David; Claasen, Marco P. A. W.; Patel, Madhukar S. et al.

Part of Journal of Hepatology, p. 1607-1618, 2022

• DOI for Low utilization of adult-to-adult LDLT in Western countries despite excellent outcomes: International multicenter analysis of the US, the UK, and Canada

ASO Visual Abstract: Systematic Review and Meta-analysis of Prognostic Factors for Early Recurrence in Intrahepatic Cholangiocarcinoma After Curative-Intent Resection

Choi, Woo Jin; Williams, Phil J.; Claasen, Marco; Ivanics, Tommy et al.

Part of Annals of Surgical Oncology, p. 4356-4357, 2022

• DOI for ASO Visual Abstract: Systematic Review and Meta-analysis of Prognostic Factors for Early Recurrence in Intrahepatic Cholangiocarcinoma After Curative-Intent Resection

Disparities in the Use of Older Donation After Circulatory Death Liver Allografts in the United States Versus the United Kingdom

Giorgakis, Emmanouil; Ivanics, Tommy; Khorsandi, Shirin E.; Wallace, David et al.

Part of Transplantation, 2022

• DOI for Disparities in the Use of Older Donation After Circulatory Death Liver Allografts in the United States Versus the United Kingdom

The use of normothermic liver preservation in combined liver and lung transplantation: a single‐center experience

Shamaa, Tayseer M.; Shamaa, Omar; Crombez, Catherine; Konel, Jonathan M. et al.

Part of American Journal of Transplantation, 2022

• DOI for The use of normothermic liver preservation in combined liver and lung transplantation: a single‐center experience

Outcomes of Adult Liver Retransplantation: A Canadian National Database Analysis

Yoon, Peter D.; Patel, Madhukar S.; Murillo Perez, Carla F.; Ivanics, Tommy et al.

Part of Canadian journal of gastroenterology & hepatology, p. 1-9, 2022

• DOI for Outcomes of Adult Liver Retransplantation: A Canadian National Database Analysis

Impact on Waitlist Outcomes from Changes in the Medical Eligibility of Candidates for Simultaneous Liver-Kidney Transplantation Following Implementation of the 2017 Organ Procurement and Transplantation Network/United Network for Organ Sharing Policy in the United States

Shimada, Shingo; Kitajima, Toshihiro; Suzuki, Yukiko; Kuno, Yasutaka et al.

Part of Annals of Transplantation, 2022

• DOI for Impact on Waitlist Outcomes from Changes in the Medical Eligibility of Candidates for Simultaneous Liver-Kidney Transplantation Following Implementation of the 2017 Organ Procurement and Transplantation Network/United Network for Organ Sharing Policy in the United States

Perception versus reality: A National Cohort Analysis of the surgery‐first approach for resectable pancreatic cancer

Bergquist, John R.; Thiels, Cornelius A.; Shubert, Christopher R.; Ivanics, Tommy et al.

Part of Cancer Medicine, p. 5925-5935, 2021

• DOI for Perception versus reality: A National Cohort Analysis of the surgery‐first approach for resectable pancreatic cancer

Contemporary management of chronic indwelling inferior vena cava filters

Ivanics, Tommy; Williams, Paul; Nasser, Hassan; Leonard-Murali, Shravan et al.

Part of Journal of Vascular Surgery, p. 163-169, 2021

• DOI for Contemporary management of chronic indwelling inferior vena cava filters

Prognostic risk scores for liver transplantation: game changers or statistical artworks?

Claasen, Marco P. A. W.; Ivanics, Tommy; Gravely, Annabel; Sapisochin, Gonzalo

Part of Hepatobiliary surgery and nutrition, p. 553-557, 2021

• DOI for Prognostic risk scores for liver transplantation: game changers or statistical artworks?

Combined proteomic/transcriptomic signature of recurrence post-liver transplantation for hepatocellular carcinoma beyond Milan

Bhat, Mamatha; Clotet-Freixas, Sergi; Baciu, Cristina; Pasini, Elisa et al.

Part of Clinical Proteomics, 2021

• DOI for Combined proteomic/transcriptomic signature of recurrence post-liver transplantation for hepatocellular carcinoma beyond Milan

Survival After Liver Transplantation: An International Comparison Between the United States and the United Kingdom in the Years 2008-2016

Ivanics, Tommy; Wallace, David; Abreu, Phillipe; Claasen, Marco PAW et al.

Part of Transplantation, 2021

• DOI for Survival After Liver Transplantation: An International Comparison Between the United States and the United Kingdom in the Years 2008-2016

National time trends in mortality and graft survival following liver transplantation from circulatory death or brainstem death donors

Wallace, David; Cowling, Thomas E; Suddle, Abid; Gimson, Alex et al.

Part of British Journal of Surgery, 2021

• DOI for National time trends in mortality and graft survival following liver transplantation from circulatory death or brainstem death donors

Extreme hyponatremia as a risk factor for early mortality after liver transplantation in the MELD‐sodium era

Ivanics, Tommy; Leonard‐Murali, Shravan; Mouzaihem, Hassan; Moonka, Dilip et al.

Part of Transplant International, 2021

• DOI for Extreme hyponatremia as a risk factor for early mortality after liver transplantation in the MELD‐sodium era

Regorafenib Efficacy After Sorafenib in Patients With Recurrent Hepatocellular Carcinoma After Liver Transplantation: A Retrospective Study

Iavarone, Massimo; Invernizzi, Federica; Ivanics, Tommy; Mazza, Stefano et al.

Part of Liver transplantation, 2021

• DOI for Regorafenib Efficacy After Sorafenib in Patients With Recurrent Hepatocellular Carcinoma After Liver Transplantation: A Retrospective Study

Esophagectomies for Malignancy Among General and Thoracic Surgeons: A Propensity Score Matched National Surgical Quality Improvement Program Analysis Stratified by Surgical Approach

Leonard-Murali, Shravan; Ivanics, Tommy; Nasser, Hassan; Tang, Amy et al.

Part of The American surgeon, 2021

• DOI for Esophagectomies for Malignancy Among General and Thoracic Surgeons: A Propensity Score Matched National Surgical Quality Improvement Program Analysis Stratified by Surgical Approach

The effect of perioperative packed red blood cells transfusion on patient outcomes after liver transplant for hepatocellular carcinoma

Muaddi, Hala; Abreu, Phillipe; Ivanics, Tommy; Claasen, Marco et al.

Part of HPB, 2021

• DOI for The effect of perioperative packed red blood cells transfusion on patient outcomes after liver transplant for hepatocellular carcinoma

Local resection versus radical surgery for parathyroid carcinoma: A National Cancer Database analysis

Leonard-Murali, Shravan; Ivanics, Tommy; Kwon, David S.; Han, Xiaoxia et al.

Part of European Journal of Surgical Oncology, 2021

• DOI for Local resection versus radical surgery for parathyroid carcinoma: A National Cancer Database analysis

Short recipient warm ischemia time improves outcomes in deceased donor liver transplantation

Al‐Kurd, Abbas; Kitajima, Toshihiro; Delvecchio, Khortnal; Tayseer Shamaa, Mhd et al.

Part of Transplant International, 2021

• DOI for Short recipient warm ischemia time improves outcomes in deceased donor liver transplantation

Paradigm Change in Liver Transplantation Practice After the Implementation of the Liver‐Kidney Allocation Policy

Nagai, Shunji; Suzuki, Yukiko; Kitajima, Toshihiro; Ivanics, Tommy et al.

Part of Liver transplantation, 2021

• DOI for Paradigm Change in Liver Transplantation Practice After the Implementation of the Liver‐Kidney Allocation Policy

A Pre-TACE Radiomics Model to Predict HCC Progression and Recurrence in Liver Transplantation. A Pilot Study on a Novel Biomarker

Ivanics, Tommy; Salinas-Miranda, Emmanuel; Abreu, Phillipe; Khalvati, Farzad et al.

Part of Transplantation, 2021

• DOI for A Pre-TACE Radiomics Model to Predict HCC Progression and Recurrence in Liver Transplantation. A Pilot Study on a Novel Biomarker

Trends in indications and outcomes of liver transplantation in Canada: A multicenter retrospective study

Ivanics, Tommy; Shwaartz, Chaya; Claasen, Marco P. A. W.; Patel, Madhukar S. et al.

Part of Transplant International, p. 1444-1454, 2021

• DOI for Trends in indications and outcomes of liver transplantation in Canada: A multicenter retrospective study

Dynamic α-Fetoprotein Response and Outcomes After Liver Transplant for Hepatocellular Carcinoma

Halazun, Karim J.; Rosenblatt, Russell E.; Mehta, Neil; Lai, Quirino et al.

Part of JAMA Surgery, 2021

• DOI for Dynamic α-Fetoprotein Response and Outcomes After Liver Transplant for Hepatocellular Carcinoma

Fat grafting: A novel technique for difficult ostomy management

Ivanics, Tommy; Zimnicki, Katherine; Ahmad, Hassan; Saab, Ihab et al.

Part of Surgery, 2021

• DOI for Fat grafting: A novel technique for difficult ostomy management

Blood Cell Salvage and Autotransfusion Does Not Worsen Oncologic Outcomes Following Liver Transplantation with Incidental Hepatocellular Carcinoma: A Propensity Score-Matched Analysis

Ivanics, Tommy; Shubert, Christopher R.; Muaddi, Hala; Claasen, Marco P. A. W. et al.

Part of Annals of Surgical Oncology, p. 6816-6825, 2021

• DOI for Blood Cell Salvage and Autotransfusion Does Not Worsen Oncologic Outcomes Following Liver Transplantation with Incidental Hepatocellular Carcinoma: A Propensity Score-Matched Analysis

Outcome of African‐American compared to White‐American patients with early‐stage breast cancer, stratified by phenotype

Lehrberg, Anna; Davis, Melissa B.; Baidoun, Fadi; Petersen, Lindsay et al.

Part of The Breast Journal, 2021

• DOI for Outcome of African‐American compared to White‐American patients with early‐stage breast cancer, stratified by phenotype

Intraoperative Nerve Monitoring in Thyroidectomies for Malignancy: Does it Matter?

Leonard-Murali, Shravan; Ivanics, Tommy; Nasser, Hassan; Tang, Amy et al.

Part of The American surgeon, 2021

• DOI for Intraoperative Nerve Monitoring in Thyroidectomies for Malignancy: Does it Matter?

Incidence and Risk Factors for Fatal Graft-versus-host Disease After Liver Transplantation

Kitajima, Toshihiro; Henry, Matthew; Ivanics, Tommy; Yeddula, Sirisha et al.

Part of Transplantation, 2021

• DOI for Incidence and Risk Factors for Fatal Graft-versus-host Disease After Liver Transplantation

Novel biomarker for hepatocellular carcinoma: high tumoral PLK-4 expression is associated with better prognosis in patients without microvascular invasion

Abreu, Phillipe; Ivanics, Tommy; Jiang, Keruo; Chen, Kui et al.

Part of HPB, 2021

• DOI for Novel biomarker for hepatocellular carcinoma: high tumoral PLK-4 expression is associated with better prognosis in patients without microvascular invasion

Aortic and superior mesenteric artery embolectomy after paradoxical embolism

Ivanics, Tommy; Nasser, Hassan; Shepard, Alexander; Lee, Alice

Part of Journal of Vascular Surgery, p. 1027-1028, 2020

• DOI for Aortic and superior mesenteric artery embolectomy after paradoxical embolism

Perioperative Outcomes of Robotic Versus Laparoscopic Sleeve Gastrectomy in the Super-obese

Nasser, Hassan; Ivanics, Tommy; Ranjal, Rohit Shenoy; Leonard-Murali, Shravan et al.

Part of Journal of Surgical Research, 2020

• DOI for Perioperative Outcomes of Robotic Versus Laparoscopic Sleeve Gastrectomy in the Super-obese

Prescribing Habits of Providers and Risk Factors for Nonadherence to Opioid Prescribing Guidelines

Ivanics, Tommy; Nasser, Hassan; Kandagatla, Pridvi; Leonard-Murali, Shravan et al.

Part of The American surgeon, p. 1039-1047, 2020

• DOI for Prescribing Habits of Providers and Risk Factors for Nonadherence to Opioid Prescribing Guidelines

Liver transplantation for unresectable colorectal metastasis: a new hope

Gorgen, Andre; Ivanics, Tommy; Sapisochin, Gonzalo

Part of Hepatobiliary surgery and nutrition, 2020

• DOI for Liver transplantation for unresectable colorectal metastasis: a new hope

Changing Trends in Liver Transplantation: Challenges and Solutions

Ivanics, Tommy; Abreu, Phillipe; De Martin, Eleonora; Sapisochin, Gonzalo

Part of Transplantation, p. 743-756, 2020

• DOI for Changing Trends in Liver Transplantation: Challenges and Solutions

Biliary tract cancer patient-derived xenografts: Surgeon impact on individualized medicine

Leiting, Jennifer L.; Murphy, Stephen J.; Bergquist, John R.; Hernandez, Matthew C. et al.

Part of JHEP Rep, p. 100068-100068, 2020

• DOI for Biliary tract cancer patient-derived xenografts: Surgeon impact on individualized medicine

Factors influencing the choice between laparoscopic sleeve gastrectomy and Roux-en-Y gastric bypass

Nasser, Hassan; Ivanics, Tommy; Carlin, Arthur M.

Part of Surgical Endoscopy, 2020

• DOI for Factors influencing the choice between laparoscopic sleeve gastrectomy and Roux-en-Y gastric bypass

Multidisciplinary treatment for hilar and intrahepatic cholangiocarcinoma: A review of the general principles

Sapisochin, Gonzalo; Ivanics, Tommy; Subramanian, Vijay; Doyle, Majella et al.

Part of International Journal of Surgery, p. 77-81, 2020

• DOI for Multidisciplinary treatment for hilar and intrahepatic cholangiocarcinoma: A review of the general principles

Cholangiocarcinoma as an Indication for Liver Transplantation in the Era of Transplant Oncology

Gringeri, Enrico; Gambato, Martina; Sapisochin, Gonzalo; Ivanics, Tommy et al.

Part of Journal of Clinical Medicine, 2020

• DOI for Cholangiocarcinoma as an Indication for Liver Transplantation in the Era of Transplant Oncology

Artificial intelligence in transplantation (machine-learning classifiers and transplant oncology)

Ivanics, Tommy; Patel, Madhukar S.; Erdman, Lauren; Sapisochin, Gonzalo

Part of Current Opinion in Organ Transplantation, p. 426-434, 2020

• DOI for Artificial intelligence in transplantation (machine-learning classifiers and transplant oncology)

Comparison of early outcomes between Roux-en-Y gastric bypass and sleeve gastrectomy among patients with body mass index ≥ 60 kg/m2

Nasser, Hassan; Ivanics, Tommy; Varban, Oliver A.; Finks, Jonathan F. et al.

Part of Surgical Endoscopy, 2020

• DOI for Comparison of early outcomes between Roux-en-Y gastric bypass and sleeve gastrectomy among patients with body mass index ≥ 60 kg/m2

Predictors of postoperative emergency department visits after laparoscopic bariatric surgery

Leonard-Murali, Shravan; Nasser, Hassan; Ivanics, Tommy; Genaw, Jeffrey

Part of Surgery for Obesity and Related Diseases, p. 1483-1489, 2020

• DOI for Predictors of postoperative emergency department visits after laparoscopic bariatric surgery

Risk Factors for Surgical Site Infection After Laparoscopic Colectomy: An NSQIP Database Analysis

Nasser, Hassan; Ivanics, Tommy; Leonard-Murali, Shravan; Stefanou, Amalia

Part of Journal of Surgical Research, p. 25-33, 2020

• DOI for Risk Factors for Surgical Site Infection After Laparoscopic Colectomy: An NSQIP Database Analysis

Retransplantation outcomes for hepatitis C in the United States before and after direct‐acting antiviral introduction

Ivanics, Tommy; Rizzari, Michael; Moonka, Dilip; Al‐Kurd, Abbas et al.

Part of American Journal of Transplantation, 2020

• DOI for Retransplantation outcomes for hepatitis C in the United States before and after direct‐acting antiviral introduction

Severe phlebitis-like abnormal reaction following great saphenous vein cyanoacrylate closure

Nasser, Hassan; Ivanics, Tommy; Shakaroun, Dania; Lin, Judith

Part of Journal of Vascular Surgery, p. 578-582, 2019

• DOI for Severe phlebitis-like abnormal reaction following great saphenous vein cyanoacrylate closure

A case report of an adjustable gastric band erosion and migration into the jejunum resulting in biliary obstruction

Nasser, Hassan; Ivanics, Tommy; Leonard-Murali, Shravan; Genaw, Jeffrey

Part of International Journal of Surgery Case Reports, p. 139-142, 2019

• DOI for A case report of an adjustable gastric band erosion and migration into the jejunum resulting in biliary obstruction

Emphysematous gastritis: A case series of three patients managed conservatively

Nasser, Hassan; Ivanics, Tommy; Leonard-Murali, Shravan; Shakaroun, Dania et al.

Part of International Journal of Surgery Case Reports, 2019

• DOI for Emphysematous gastritis: A case series of three patients managed conservatively

Spontaneous hepatic rupture due to primary amyloidosis

Leonard-Murali, Shravan; Nasser, Hassan; Ivanics, Tommy; Woodward, Ann

Part of BMJ Case Reports, 2019

• DOI for Spontaneous hepatic rupture due to primary amyloidosis

Rituximab Decreases Lymphoproliferative Tumor Formation in Hepatopancreaticobiliary and Gastrointestinal Cancer Patient-Derived Xenografts

Leiting, Jennifer L.; Hernandez, Matthew C.; Yang, Lin; Bergquist, John R. et al.

Part of Scientific Reports, 2019

• DOI for Rituximab Decreases Lymphoproliferative Tumor Formation in Hepatopancreaticobiliary and Gastrointestinal Cancer Patient-Derived Xenografts

Successful Secondary Engraftment of Pancreatic Ductal Adenocarcinoma and Cholangiocarcinoma Patient-Derived Xenografts After Previous Failed Primary Engraftment

Hernandez, Matthew C.; Yang, Lin; Leiting, Jennifer L.; Sugihara, Takaaki et al.

Part of Translational Oncology, p. 69-75, 2019

• DOI for Successful Secondary Engraftment of Pancreatic Ductal Adenocarcinoma and Cholangiocarcinoma Patient-Derived Xenografts After Previous Failed Primary Engraftment

Is Loop Ileostomy in Patients with Cecal Bascule a Viable Option?

Shetty, Tushar; Ivanics, Tommy; Nasser, Hassan; Stefanou, Amalia

Part of Case Reports in Surgery, p. 1-4, 2019

• DOI for Is Loop Ileostomy in Patients with Cecal Bascule a Viable Option?

Dehydration risk factors and impact after bariatric surgery: an analysis using a national database

Ivanics, Tommy; Nasser, Hassan; Leonard-Murali, Shravan; Genaw, Jeffrey

Part of Surgery for Obesity and Related Diseases, p. 2066-2074, 2019

• DOI for Dehydration risk factors and impact after bariatric surgery: an analysis using a national database

Perioperative Outcomes of Roux-en-Y Gastric Bypass and Sleeve Gastrectomy in Patients with Diabetes Mellitus: an Analysis of the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) Database

Leonard-Murali, Shravan; Nasser, Hassan; Ivanics, Tommy; Shakaroun, Dania et al.

Part of Obesity Surgery, 2019

• DOI for Perioperative Outcomes of Roux-en-Y Gastric Bypass and Sleeve Gastrectomy in Patients with Diabetes Mellitus: an Analysis of the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) Database

Perioperative outcomes of laparoscopic Roux-en-Y gastric bypass and sleeve gastrectomy in super-obese and super-super-obese patients: a national database analysis

Nasser, Hassan; Ivanics, Tommy; Leonard-Murali, Shravan; Shakaroun, Dania et al.

Part of Surgery for Obesity and Related Diseases, 2019

• DOI for Perioperative outcomes of laparoscopic Roux-en-Y gastric bypass and sleeve gastrectomy in super-obese and super-super-obese patients: a national database analysis

Patient-Derived Xenografts Can Be Reliably Generated from Patient Clinical Biopsy Specimens

Hernandez, Matthew C.; Bergquist, John R.; Leiting, Jennifer L.; Ivanics, Tommy et al.

Part of Journal of Gastrointestinal Surgery, p. 818-824, 2019

• DOI for Patient-Derived Xenografts Can Be Reliably Generated from Patient Clinical Biopsy Specimens

Evaluation of a Multidisciplinary Team Approach for Generating Survivorship Care Plan Treatment Summaries in Patients With Breast Cancer

Ivanics, Tommy; Proctor, Erica; Chen, Yalei; Ali, Haythem et al.

Part of J Oncol Pract, 2019

• DOI for Evaluation of a Multidisciplinary Team Approach for Generating Survivorship Care Plan Treatment Summaries in Patients With Breast Cancer

Clostridium difficileEnteritis after Total Abdominal Colectomy for Ulcerative Colitis

Nasser, Hassan; Munie, Semeret; Shakaroun, Dania; Ivanics, Tommy et al.

Part of Case Reports in Critical Care, p. 1-4, 2019

• DOI for Clostridium difficileEnteritis after Total Abdominal Colectomy for Ulcerative Colitis

Combined Chylothorax and Chylous Ascites Complicating Liver Transplantation: A Report of a Case and Review of the Literature

Ivanics, Tommy; Munie, Semeret; Nasser, Hassan; Leonard-Murali, Shravan et al.

Part of Case Reports in Transplantation, 2019

• DOI for Combined Chylothorax and Chylous Ascites Complicating Liver Transplantation: A Report of a Case and Review of the Literature

Adjuvant systemic therapy after resection of node positive gallbladder cancer: Time for a well-designed trial? (Results of a US-national retrospective cohort study)

Bergquist, John R.; Shah, Harsh N.; Habermann, Elizabeth B.; Hernandez, Matthew C. et al.

Part of International Journal of Surgery, 2018

• DOI for Adjuvant systemic therapy after resection of node positive gallbladder cancer: Time for a well-designed trial? (Results of a US-national retrospective cohort study)

Patient-derived xenograft cryopreservation and reanimation outcomes are dependent on cryoprotectant type

Ivanics, Tommy; Bergquist, John R; Liu, Gang; Kim, Michael P. et al.

Part of Laboratory Investigation, p. 947-956, 2018

• DOI for Patient-derived xenograft cryopreservation and reanimation outcomes are dependent on cryoprotectant type

Type of Resection (Whipple vs. Distal) Does Not Affect the National Failure to Provide Post-resection Adjuvant Chemotherapy in Localized Pancreatic Cancer

Bergquist, John R.; Ivanics, Tommy; Shubert, Christopher R.; Habermann, Elizabeth B. et al.

Part of Annals of Surgical Oncology, 2017

• DOI for Type of Resection (Whipple vs. Distal) Does Not Affect the National Failure to Provide Post-resection Adjuvant Chemotherapy in Localized Pancreatic Cancer

Prognosis following surgical bypass compared with laparotomy alone in unresectable pancreatic adenocarcinoma

Insulander, J.; Sanjeevi, Srinivas; Haghighi, M.; Ivanics, Tommy et al.

Part of British Journal of Surgery, p. 1200-1208, 2016

• DOI for Prognosis following surgical bypass compared with laparotomy alone in unresectable pancreatic adenocarcinoma

Small Cell Carcinoma of the Pancreas

Ivanics, Tommy; Bergquist, John R.; Shubert, Christopher R.; Smoot, Rory L. et al.

Part of Pancreas, p. 1461-1466, 2016

• DOI for Small Cell Carcinoma of the Pancreas

Mixed hepatocellular and cholangiocarcinoma: a rare tumor with a mix of parent phenotypic characteristics

Bergquist, John R.; Groeschl, Ryan T.; Ivanics, Tommy; Shubert, Christopher R. et al.

Part of HPB, p. 886-892, 2016

• DOI for Mixed hepatocellular and cholangiocarcinoma: a rare tumor with a mix of parent phenotypic characteristics

Implications of CA19-9 elevation for survival, staging, and treatment sequencing in intrahepatic cholangiocarcinoma: A national cohort analysis

Bergquist, John R.; Ivanics, Tommy; Storlie, Curtis B.; Groeschl, Ryan T. et al.

Part of Journal of Surgical Oncology, p. 475-482, 2016

• DOI for Implications of CA19-9 elevation for survival, staging, and treatment sequencing in intrahepatic cholangiocarcinoma: A national cohort analysis

Impact of delay between imaging and treatment in patients with potentially curable pancreatic cancer

Sanjeevi, Srinivas; Ivanics, Tommy; Lundell, L.; Kartalis, N. et al.

Part of British Journal of Surgery, p. 267-275, 2015

• DOI for Impact of delay between imaging and treatment in patients with potentially curable pancreatic cancer

MicroRNAs in the Cholangiopathies: Pathogenesis, Diagnosis, and Treatment

Pisarello, Maria; Loarca, Lorena; Ivanics, Tommy; Morton, Leslie et al.

Part of Journal of Clinical Medicine, 2015

• DOI for MicroRNAs in the Cholangiopathies: Pathogenesis, Diagnosis, and Treatment

Comparative analysis of treatment modalities for solitary, small (≤3 cm) hepatocellular carcinoma: A systematic review and network meta-analysis of oncologic outcomes

Choi, Woo Jin; Ivanics, Tommy; Rajendran, Luckshi; Li, Zhihao et al.

Part of Surgery, 2025

• DOI for Comparative analysis of treatment modalities for solitary, small (≤3 cm) hepatocellular carcinoma: A systematic review and network meta-analysis of oncologic outcomes
• Download full text (pdf) of Comparative analysis of treatment modalities for solitary, small (≤3 cm) hepatocellular carcinoma: A systematic review and network meta-analysis of oncologic outcomes

Optimizing Circulating Tumour DNA Use in the Perioperative Setting for Intrahepatic Cholangiocarcinoma: Diagnosis, Screening, Minimal Residual Disease Detection and Treatment Response Monitoring

Choi, Woo Jin; Ivanics, Tommy; Gravely, Annabel; Gallinger, Steven et al.

Part of Annals of Surgical Oncology, p. 3849-3863, 2023

• DOI for Optimizing Circulating Tumour DNA Use in the Perioperative Setting for Intrahepatic Cholangiocarcinoma: Diagnosis, Screening, Minimal Residual Disease Detection and Treatment Response Monitoring

The management of post-transplantation recurrence of hepatocellular carcinoma

Rajendran, Luckshi; Ivanics, Tommy; Claasen, Marco P. A. W.; Muaddi, Hala et al.

Part of Clinical and Molecular Hepatology, p. 1-16, 2022

• DOI for The management of post-transplantation recurrence of hepatocellular carcinoma
• Download full text (pdf) of The management of post-transplantation recurrence of hepatocellular carcinoma

Recent developments and ongoing trials in transplant oncology

Moeckli, Beat; Ivanics, Tommy; Claasen, Marco; Toso, Christian et al.

Part of Liver international, p. 2326-2344, 2020

• DOI for Recent developments and ongoing trials in transplant oncology