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Mendizabal M, Thompson M, Gonzalez-Ballerga E, Anders M, Castro-Narro GE, Pessoa MG, Cheinquer H, Mezzano G, Palazzo A, Ridruejo E, Descalzi V, Velarde-Ruiz Velasco JA, Marciano S, Muñoz L, Schinoni MI, Poniachik J, Perazzo R, Cerda E, Fuster F, Varon A, Ruiz García S, Soza A, Cabrera C, Gomez-Aldana AJ, Beltrán FDM, Gerona S, Cocozzella D, Bessone F, Hernández N, Alonso C, Ferreiro M, Antinucci F, Torre A, Moutinho BD, Coelho Borges S, Gomez F, Murga MD, Piñero F, Sotera GF, Ocampo JA, Cortés Mollinedo VA, Simian D, Silva MO. Implementation of a re-linkage to care strategy in patients with chronic hepatitis C who were lost to follow-up in Latin America. J Viral Hepat 2023; 30:56-63. [PMID: 36197907 DOI: 10.1111/jvh.13758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 09/25/2022] [Accepted: 10/02/2022] [Indexed: 12/09/2022]
Abstract
To achieve WHO's goal of eliminating hepatitis C virus (HCV), innovative strategies must be designed to diagnose and treat more patients. Therefore, we aimed to describe an implementation strategy to identify patients with HCV who were lost to follow-up (LTFU) and offer them re-linkage to HCV care. We conducted an implementation study utilizing a strategy to contact patients with HCV who were not under regular follow-up in 13 countries from Latin America. Patients with HCV were identified by the international classification of diseases (ICD-9/10) or equivalent. Medical records were then reviewed to confirm the diagnosis of chronic HCV infection defined by anti-HCV+ and detectable HCV-RNA. Identified patients who were not under follow-up by a liver specialist were contacted by telephone or email, and offered a medical reevaluation. A total of 10,364 patients were classified to have HCV. After reviewing their medical charts, 1349 (13%) had undetectable HCV-RNA or were wrongly coded. Overall, 9015 (86.9%) individuals were identified with chronic HCV infection. A total of 5096 (56.5%) patients were under routine HCV care and 3919 (43.5%) had been LTFU. We were able to contact 1617 (41.3%) of the 3919 patients who were LTFU at the primary medical institution, of which 427 (26.4%) were cured at a different institutions or were dead. Of the remaining patients, 906 (76.1%) were candidates for retrieval. In our cohort, about one out of four patients with chronic HCV who were LTFU were candidates to receive treatment. This strategy has the potential to be effective, accessible and significantly impacts on the HCV care cascade.
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Affiliation(s)
- Manuel Mendizabal
- Unidad de Hígado y Trasplante Hepático, Hospital Universitario Austral, Pilar, Argentina
| | - Marcos Thompson
- Unidad de Hígado y Trasplante Hepático, Hospital Universitario Austral, Pilar, Argentina
| | - Esteban Gonzalez-Ballerga
- Sección Hepatología, Hospital de Clínicas "José de San Martín", Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Margarita Anders
- Unidad de Hepatología y Trasplante Hepático, Hospital Alemán, Buenos Aires, Argentina
| | - Graciela E Castro-Narro
- Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", Ciudad de Mexico, Mexico
| | - Mario G Pessoa
- Divisão de Gastroenterologia e Hepatologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Hugo Cheinquer
- Departamento de Gastroenterología y Hepatología, Universidad Federal do Rio Grande do Sul e do Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Gabriel Mezzano
- Sección de Gastroenterología, Hospital El Salvador, Santiago, Chile
| | - Ana Palazzo
- Servicio de Gastroenterología, Sección de Hepatología, Hospital Padilla, Tucumán, Argentina
| | - Ezequiel Ridruejo
- Sección Hepatología, Departamento de Medicina, Centro de Educación Médica e Investigaciones Clínicas Norberto Quirno "CEMIC", Buenos Aires, Argentina
| | - Valeria Descalzi
- Unidad de Hígado y Trasplante Hepático, Hospital Universitario Fundación Favaloro, Buenos Aires, Argentina
| | | | - Sebastian Marciano
- Sección Hepatología, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Linda Muñoz
- Hospital Universitario "Dr. José E. González", Monterrey, Mexico
| | - Maria I Schinoni
- Núcleo de Hepatología, Hospital Universitario Prof. Edgard Santos, Universidad Federal de Bahia, Salvador, Brazil
| | - Jaime Poniachik
- Sección de Gastroenterología, Departamento de Medicina, Hospital Clínico de la Universidad de Chile, Santiago, Chile
| | - Rosalía Perazzo
- Unidad de Gastroenterología, Hospital Miguel Perez Carreño, Caracas, Venezuela
| | - Eira Cerda
- Hospital Central Militar, Escuela Militar de Graduados de Sanidad, Ciudad de México, Mexico
| | - Francisco Fuster
- Unidad de Hepatología, Hospital Gustavo Fricke, Viña del Mar, Chile
| | - Adriana Varon
- Fundación Cardioinfantil, Instituto de Cardiología, Bogotá, Colombia
| | | | - Alejandro Soza
- Departamento de Gastroenterología, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Cecilia Cabrera
- Unidad de Gastroenterología, Hospital Nacional Daniel A. Carrión, Callao, Peru
| | - Andres J Gomez-Aldana
- Unidad de Gastroenterología y Trasplante Fundación Santa Fe de Bogotá, Bogotá, Colombia
| | | | - Solange Gerona
- Unidad de Hígado, Hospital de Fuerzas Armadas, Montevideo, Uruguay
| | | | - Fernando Bessone
- Departamento de Gastroenterología, Facultad de Medicina, Hospital Provincial del Centenario, University of Rosario School of Medicine, Rosario, Argentina
| | - Nelia Hernández
- Clínica de Gastroenterología, Hospital de Clínicas, Facultad de Medicina, UdelaR, Montevideo, Uruguay
| | - Cristina Alonso
- Unidad de Hígado y Trasplante Hepático, Hospital Universitario Austral, Pilar, Argentina
| | - Melina Ferreiro
- Sección Hepatología, Hospital de Clínicas "José de San Martín", Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Florencia Antinucci
- Unidad de Hepatología y Trasplante Hepático, Hospital Alemán, Buenos Aires, Argentina
| | - Aldo Torre
- Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", Ciudad de Mexico, Mexico
| | - Bruna D Moutinho
- Divisão de Gastroenterologia e Hepatologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | | | - Fernando Gomez
- Sección de Gastroenterología, Hospital El Salvador, Santiago, Chile
| | - Maria Dolores Murga
- Servicio de Gastroenterología, Sección de Hepatología, Hospital Padilla, Tucumán, Argentina
| | - Federico Piñero
- Unidad de Hígado y Trasplante Hepático, Hospital Universitario Austral, Pilar, Argentina
| | - Gisela F Sotera
- Sección Hepatología, Hospital de Clínicas "José de San Martín", Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Jhonier A Ocampo
- Unidad de Hepatología y Trasplante Hepático, Hospital Alemán, Buenos Aires, Argentina
| | - Valeria A Cortés Mollinedo
- Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", Ciudad de Mexico, Mexico
| | - Daniela Simian
- Sección de Gastroenterología, Departamento de Medicina, Hospital Clínico de la Universidad de Chile, Santiago, Chile
| | - Marcelo O Silva
- Unidad de Hígado y Trasplante Hepático, Hospital Universitario Austral, Pilar, Argentina
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Dufort M, Seija M, Astesiano R, Santiago J, Yandian F, Halty M, Rebori A, Gerona S, Noboa Ó, Nin M. Trasplante hepatorrenal por hiperoxaluria primaria: reporte del primer caso en Uruguay y revisión de la literatura. NEFRO 2022. [DOI: 10.24875/nefro.22000010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Prieto J, Rammauro F, López M, Rey R, Fernández A, Bianchi S, Gerona S, Medina J, Pritsch O. Low Immunoglobulin G Antibody Levels Against Severe Acute Respiratory Disease Coronavirus 2 After 2-Dose Vaccination Among Liver Transplantation Recipients. Liver Transpl 2022; 28:891-894. [PMID: 34958526 PMCID: PMC9015614 DOI: 10.1002/lt.26400] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 11/23/2021] [Accepted: 12/19/2021] [Indexed: 12/13/2022]
Affiliation(s)
- Jimena Prieto
- Cátedra de Enfermedades InfecciosasFacultad de MedicinaUniversidad de la RepúblicaMontevideoUruguay,Programa Nacional de Trasplante HepáticoMontevideoUruguay
| | - Florencia Rammauro
- Departamento de InmunobiologíaFacultad de MedicinaUniversidad de la RepúblicaMontevideoUruguay,Laboratorio de InmunovirologíaInstitut Pasteur de MontevideoMontevideoUruguay
| | - Martín López
- Programa Nacional de Trasplante HepáticoMontevideoUruguay
| | - Romina Rey
- Programa Nacional de Trasplante HepáticoMontevideoUruguay
| | - Ana Fernández
- Programa Nacional de Trasplante HepáticoMontevideoUruguay
| | - Sergio Bianchi
- Departamento de Fisiopatología, Hospital de ClínicasFacultad de MedicinaUniversidad de la RepúblicaMontevideoUruguay,Laboratorio de Genómica FuncionalInstitut Pasteur de MontevideoMontevideoUruguay
| | - Solange Gerona
- Programa Nacional de Trasplante HepáticoMontevideoUruguay
| | - Julio Medina
- Cátedra de Enfermedades InfecciosasFacultad de MedicinaUniversidad de la RepúblicaMontevideoUruguay,Programa Nacional de Trasplante HepáticoMontevideoUruguay
| | - Otto Pritsch
- Departamento de InmunobiologíaFacultad de MedicinaUniversidad de la RepúblicaMontevideoUruguay,Laboratorio de InmunovirologíaInstitut Pasteur de MontevideoMontevideoUruguay
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Chatterjee P, Menendez J, Noceti O, Gerona S, Toribio M, Cymberknop LJ, Armentano RL. Predictive Cardiometabolic Risk Profiling of Patients Using Vascular Age in Liver Transplantation. Annu Int Conf IEEE Eng Med Biol Soc 2021; 2021:1715-1718. [PMID: 34891617 DOI: 10.1109/embc46164.2021.9631071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Liver transplantation is the last therapeutic option in patients with end-stage liver diseases. The adequate clinical management of transplant-patients impacts their vital prognosis and decisions on many occasions are made from the interaction of multiple variables involved in the process. This work is based on the National Liver Transplantation Program in Uruguay. We performed predictive analysis of cardiometabolic diseases on the transplanted cohort between 2014 and 2019, considering vascular age as a key factor. This aims at classification of the cohort based on the vascular age of the evaluated patients before transplantation for risk-profiling. Predicted high-risk group of the patients showed substantial deterioration of post-transplant health-conditions, including higher mortality rate. In our knowledge, this is the first study in Latin America incorporating vascular age toward predictive analysis of cardiometabolic risk factors in liver transplantations. Predictive risk-modeling using vascular age in a pre-transplantation scenario provides significant opportunity for early prediction of post-transplant risk factors, leading to efficient treatment with anticipation.
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Arab JP, Dirchwolf M, Álvares-da-Silva MR, Barrera F, Benítez C, Castellanos-Fernandez M, Castro-Narro G, Chavez-Tapia N, Chiodi D, Cotrim H, Cusi K, de Oliveira CPMS, Díaz J, Fassio E, Gerona S, Girala M, Hernandez N, Marciano S, Masson W, Méndez-Sánchez N, Leite N, Lozano A, Padilla M, Panduro A, Paraná R, Parise E, Perez M, Poniachik J, Restrepo JC, Ruf A, Silva M, Tagle M, Tapias M, Torres K, Vilar-Gomez E, Costa Gil JE, Gadano A, Arrese M. Latin American Association for the study of the liver (ALEH) practice guidance for the diagnosis and treatment of non-alcoholic fatty liver disease. Ann Hepatol 2021; 19:674-690. [PMID: 33031970 DOI: 10.1016/j.aohep.2020.09.006] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 09/17/2020] [Indexed: 02/07/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) currently represents an epidemic worldwide. NAFLD is the most frequently diagnosed chronic liver disease, affecting 20-30% of the general population. Furthermore, its prevalence is predicted to increase exponentially in the next decades, concomitantly with the global epidemic of obesity, type 2 diabetes mellitus (T2DM), and sedentary lifestyle. NAFLD is a clinical syndrome that encompasses a wide spectrum of associated diseases and hepatic complications such as hepatocellular carcinoma (HCC). Moreover, this disease is believed to become the main indication for liver transplantation in the near future. Since NAFLD management represents a growing challenge for primary care physicians, the Asociación Latinoamericana para el Estudio del Hígado (ALEH) has decided to organize this Practice Guidance for the Diagnosis and Treatment of Non-Alcoholic Fatty Liver Disease, written by Latin-American specialists in different clinical areas, and destined to general practitioners, internal medicine specialists, endocrinologists, diabetologists, gastroenterologists, and hepatologists. The main purpose of this document is to improve patient care and awareness of NAFLD. The information provided in this guidance may also be useful in assisting stakeholders in the decision-making process related to NAFLD. Since new evidence is constantly emerging on different aspects of the disease, updates to this guideline will be required in future.
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Affiliation(s)
- Juan Pablo Arab
- Departamento de Gastroenterología, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | - Melisa Dirchwolf
- Unidad de Trasplante Hepático, Servicio de Hepatología, Hospital Privado de Rosario, Rosario, Argentina.
| | - Mário Reis Álvares-da-Silva
- Hepatology Division, Hospital de Clinicas de Porto Alegre, Brazil; School of Medicine, Universidade Federal do Rio Grande do Sul, Brazil; Graduate Program in Gastroenterology and Hepatology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
| | - Francisco Barrera
- Departamento de Gastroenterología, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | - Carlos Benítez
- Departamento de Gastroenterología, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | | | - Graciela Castro-Narro
- Gastroenterology Department, National Institute of Medical Sciences and Nutrition "Salvador Zubirán", Mexico City, Mexico.
| | | | - Daniela Chiodi
- Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay.
| | - Helma Cotrim
- School of Medicine, Federal University of Bahia, Salvador, Bahia, Brazil.
| | - Kenneth Cusi
- Division of Endocrinology, Diabetes and Metabolism, University of Florida, Gainesville, FL, USA.
| | | | - Javier Díaz
- Departamento del Aparato Digestivo, Hospital Edgardo Rebagliati Martins, EsSalud, Lima, Peru.
| | - Eduardo Fassio
- Sección Hígado, Vías Biliares y Páncreas, Servicio de Gastroenterología, Hospital Nacional Profesor Alejandro Posadas, El Palomar, Buenos Aires, Argentina.
| | - Solange Gerona
- Liver Unit, Hospital de Fuerzas Armadas, Montevideo, Uruguay.
| | | | - Nelia Hernandez
- Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay.
| | | | - Walter Masson
- Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
| | | | - Nathalie Leite
- School of Medicine, Internal Medicine Department and Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
| | - Adelina Lozano
- Unidad de Hígado, Servicio de Gastroenterología, Hospital Nacional Arzobispo Loayza, Lima, Peru; Universidad Peruana Cayetano Heredia, Lima, Peru.
| | | | - Arturo Panduro
- Department of Molecular Biology in Medicine, Civil Hospital of Guadalajara, Fray Antonio Alcalde, Guadalajara, Jalisco, Mexico.
| | - Raymundo Paraná
- School of Medicine, Federal University of Bahia, Salvador, Bahia, Brazil.
| | - Edison Parise
- Department of Gastroenterology, Federal University of Sao Paulo, Sao Paulo, Brazil.
| | - Marlene Perez
- Hospital General de la Plaza de la Salud, Santo Domingo, Dominican Republic.
| | - Jaime Poniachik
- Sección de Gastroenterología, Hospital Clínico Universidad de Chile, Santiago, Chile.
| | - Juan Carlos Restrepo
- Hepatobiliary and Liver Transplant Program, Hospital Pablo Tobon Uribe-Universidad de Antioquia, Medellín, Colombia; Grupo Gastrohepatologia, Facultad de Medicina, Universidad of Antioquía UdeA, Medellin, Colombia.
| | - Andrés Ruf
- Unidad de Trasplante Hepático, Servicio de Hepatología, Hospital Privado de Rosario, Rosario, Argentina.
| | - Marcelo Silva
- Hepatology and Liver Transplant Unit, Hospital Universitario Austral, Pilar, Argentina.
| | - Martín Tagle
- Facultad de Medicina Alberto Hurtado, Universidad Peruana Cayetano Heredia, Lima, Peru.
| | - Monica Tapias
- Hospital Universitario Fundación Santa Fe de Bogotá, Bogotá, Colombia.
| | - Kenia Torres
- Hospital General de la Plaza de la Salud, Santo Domingo, Dominican Republic.
| | - Eduardo Vilar-Gomez
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, IN, USA.
| | | | - Adrian Gadano
- Liver Unit, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
| | - Marco Arrese
- Departamento de Gastroenterología, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.
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Prieto J, Masllorens A, Ardao G, Machado V, López M, Gerona S, Medina J. [Cytomegalovirus hepatitis diagnosis optimization in liver transplant recipients: 10 years of experience]. Rev Chilena Infectol 2021; 37:531-540. [PMID: 33399800 DOI: 10.4067/s0716-10182020000500531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 08/24/2020] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Cytomegalovirus (CMV) hepatitis constitutes a challenging diagnostic entity in liver transplant (LT) recipients. AIM To determine the real incidence of CMV hepatitis using more specific diagnostic tools as those currently used before. METHODS Retrospective/prospective study conducted in a hepatic transplant unit from 2009 to 2019. LT recipients with CMV specific or suggestive elements in histopathology of hepatic biopsies were included. Immunohistochemistry (IHQ) was performed in tissue samples of the studied cohort as well as in a control one. RESULTS 41 patients met the inclusion criteria. IHQ was diagnostic in 6 (14.6%), and was negative in 100% of the control population. The negative predictive value of the histopathology for CMV hepatitis diagnosis was 100% and the positive predictive value was 14.6%. 85% of patients in whom the IHQ was negative had alternative diagnosis Antiviral therapy in the retrospective analysis was indicated in 48% of patients and in 21% of the prospectively analyzed cohort. CONCLUSIONS Histopathology and IHQ combination improves the diagnostic accuracy of CMV hepatitis which translates into a rational us of expensive antiviral therapy and to search for differential diagnosis.
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Affiliation(s)
| | | | | | | | - Martin López
- Programa Nacional de Trasplante Hepático, Uruguay
| | | | - Julio Medina
- Programa Nacional de Trasplante Hepático, Uruguay
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Mainardi V, Gerona S, Ardao G, Ferreira N, Ramírez G, Arbiza J, Mirazo S. Locally Acquired Chronic Hepatitis E Followed by Epstein-Barr Virus Reactivation and Burkitt Lymphoma as a Suspected Extrahepatic Manifestation in a Liver Transplant Recipient. Am J Case Rep 2019; 20:1016-1021. [PMID: 31302664 PMCID: PMC6647622 DOI: 10.12659/ajcr.916253] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND Hepatitis E virus (HEV) is a common cause of acute hepatitis in developing regions. In high-income countries, hepatitis E is an emergent zoonotic disease of increasing concern. Clinically, the infection is usually acute and self-limited in immunocompetent individuals, although rare chronic cases in immunocompromised patients have been reported. Both acute and chronic infections have been recently associated with several extrahepatic manifestations, including neurological and hematological disorders. CASE REPORT A case of autochthonous chronic HEV infection in a liver-transplanted man from a non-endemic country is presented. Phylogenetic analysis revealed a swine origin of the HEV human infection. Chronic hepatitis E was treated with a 9-week course of ribavirin, after which viral clearance was achieved. Subsequently, the patient developed a post-transplant lymphoproliferative disorder (PTLD) in the form of Burkitt lymphoma. At the time of lymphoma diagnosis, the patient had shown a strong reactivation of Epstein-Barr virus (EBV) infection. After additional antiviral ganciclovir therapy and chemotherapy, the patient had a complete recovery with no sequelae. CONCLUSIONS The differential diagnosis of persistently elevated transaminases in transplanted and/or immunocompromised patients should include testing for HEV by appropriate nucleic acid techniques (NATs). Cases of HEV infection with an atypical clinical outcome, such as the one presented herein, highlights the need for increased awareness of chronic hepatitis E and its association with a wide range of extrahepatic manifestations.
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Affiliation(s)
- Victoria Mainardi
- National Liver Transplant Program, Central Hospital of the Armed Forces, Montevideo, Uruguay
| | - Solange Gerona
- National Liver Transplant Program, Central Hospital of the Armed Forces, Montevideo, Uruguay
| | - Gonzalo Ardao
- National Liver Transplant Program, Central Hospital of the Armed Forces, Montevideo, Uruguay
| | - Noelia Ferreira
- National Liver Transplant Program, Central Hospital of the Armed Forces, Montevideo, Uruguay
| | - Gabriel Ramírez
- Virology Section, Science Faculty, University of the Republic, Montevideo, Uruguay
| | - Juan Arbiza
- Virology Section, Science Faculty, University of the Republic, Montevideo, Uruguay
| | - Santiago Mirazo
- Virology Section, Science Faculty, University of the Republic, Montevideo, Uruguay
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Mainardi V, Rando K, Valverde M, Olivari D, Castelli J, Rey G, Gerona S. Acute Liver Failure due to Wilson Disease: Eight Years of the National Liver Transplant Program in Uruguay. Ann Hepatol 2019; 18:187-192. [PMID: 31113589 DOI: 10.5604/01.3001.0012.7911] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 07/04/2018] [Indexed: 02/04/2023]
Abstract
INTRODUCTION AND AIM Wilson's disease (WD) is an uncommon cause of acute liver failure (ALF). Our aim was to describe clinical features, diagnostic findings, treatments, and outcomes of patients with ALF due to WD. MATERIAL AND METHODS Retrospective medical record reviews of all patients with ALF due to WD in eight years in Uruguay. RESULTS WD was the cause of six (15%) of thirty-nine ALF cases. All patients were females, with a mean age of 18 years. Four patients presented with hyperacute liver failure and two with acute failure. Jaundice was the main complaint of all patients. Mean total bilirubin (TB), alkaline phosphatase (AP), AST, and ALT were 27.5 mg/dL, 45.5 lU/l, 156 IU/L, and 51 IU/L, respectively. Ceruloplasmin levels were low in four patients, urinary cooper was high in four, and two had Kayser-Fleischer rings. All patients had Coombs-negative hemolytic anemia, acute kidney injury, histochemical identifiable copper, and advanced fibrosis on liver histology. The average MELD score was 36. All patients were treated with d-penicillamine and listed for urgent liver transplantation (LT). Prometheus® was performed in one patient. Three patients died: two without LT and one after LT. Three patients survived: one without LT (New Wilson Index<11) and two with LT. The referral time to the program and the total time (referral plus waiting list time) were longer for non-survivors than for survivors (14 vs. 3 days and 23 vs. 8 respectively). CONCLUSION All cases had typical clinical, analytical and histopathology characteristics. Early referral was determinant of prognosis.
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Affiliation(s)
- Victoria Mainardi
- Hepatic Biliary and Pancreatic National Center - Teaching and Assistance Unit (UDA) and Bi-Intuitional Unit of Liver Transplantation, Military Hospital, Montevideo, Uruguay.
| | - Karina Rando
- Hepatic Biliary and Pancreatic National Center - Teaching and Assistance Unit (UDA) and Bi-Intuitional Unit of Liver Transplantation, Military Hospital, Montevideo, Uruguay
| | - Marcelo Valverde
- Hepatic Biliary and Pancreatic National Center - Teaching and Assistance Unit (UDA) and Bi-Intuitional Unit of Liver Transplantation, Military Hospital, Montevideo, Uruguay
| | - Daniela Olivari
- Hepatic Biliary and Pancreatic National Center - Teaching and Assistance Unit (UDA) and Bi-Intuitional Unit of Liver Transplantation, Military Hospital, Montevideo, Uruguay
| | - Jorge Castelli
- Hepatic Biliary and Pancreatic National Center - Teaching and Assistance Unit (UDA) and Bi-Intuitional Unit of Liver Transplantation, Military Hospital, Montevideo, Uruguay
| | - Gabriela Rey
- Hepatic Biliary and Pancreatic National Center - Teaching and Assistance Unit (UDA) and Bi-Intuitional Unit of Liver Transplantation, Military Hospital, Montevideo, Uruguay
| | - Solange Gerona
- Hepatic Biliary and Pancreatic National Center - Teaching and Assistance Unit (UDA) and Bi-Intuitional Unit of Liver Transplantation, Military Hospital, Montevideo, Uruguay
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9
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Olivari D, Mainardi V, Rando K, Rey G, Menendez J, Prieto J, Medina J, Valverde M, Castelli J, Grecco G, Leites A, Zunini G, Gozalez S, Harguindeguy M, Gerona S. Risk Factors of Mortality After Liver Transplantation in Uruguay. Transplant Proc 2018; 50:499-502. [PMID: 29579835 DOI: 10.1016/j.transproceed.2017.12.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 12/14/2017] [Accepted: 12/15/2017] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Identification of predictive factors of mortality in a liver transplant (LT) program optimizes patient selection and allocation of organs. OBJECTIVE To determine survival rates and predictive factors of mortality after LT in the National Liver Transplant Program of Uruguay. METHODS A retrospective study was conducted analyzing data prospectively collected into a multidisciplinary database. All patients transplanted since the beginning of the program on July 2009 to April 2017 were included (n = 148). Twenty-nine factors were analyzed through the univariate Kaplan-Meier model. A Cox regression model was used in the multivariate analysis to identify the independent prognostic factors for survival. RESULTS Overall survival was 92%, 87%, and 78% at discharge, 1 year, and 3 years, respectively. The Kaplan-Meier survival curves were significantly lower in: recipients aged >60 years, Model for End-Stage Liver Disease score >21, LT due to hepatocellular carcinoma (HCC) and acute liver failure (ALF), donors with comorbidities, intraoperative blood loss beyond the median (>2350 mL), red blood cell transfusion requirement beyond the median (>1254 mL), intraoperative complications, delay of extubation, invasive bacterial, and fungal infection after LT and stay in critical care unit >4 days. The Cox regression model (likelihood ratio test, P = 1.976 e-06) identified the following independent prognostic factors for survival: LT for HCC (hazard ratio [HR] 4.511; P = .001) and ALF (HR 6.346; P = .004), donors with comorbidities (HR 2.354; P = .041), intraoperative complications (HR 2.707; P = .027), and invasive fungal infections (HR 3.281; P = .025). CONCLUSION The survival rates of LT patients as well as the mortality-associated factors are similar to those reported in the international literature.
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Affiliation(s)
- D Olivari
- Hepatic Biliary and Pancreatic National Center-Teaching and Assistance Unit (UDA) from Uruguay University (UDELAR), Montevideo, Uruguay; National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - V Mainardi
- Hepatic Biliary and Pancreatic National Center-Teaching and Assistance Unit (UDA) from Uruguay University (UDELAR), Montevideo, Uruguay; National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay.
| | - K Rando
- Hepatic Biliary and Pancreatic National Center-Teaching and Assistance Unit (UDA) from Uruguay University (UDELAR), Montevideo, Uruguay; National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - G Rey
- Hepatic Biliary and Pancreatic National Center-Teaching and Assistance Unit (UDA) from Uruguay University (UDELAR), Montevideo, Uruguay
| | - J Menendez
- Hepatic Biliary and Pancreatic National Center-Teaching and Assistance Unit (UDA) from Uruguay University (UDELAR), Montevideo, Uruguay; National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - J Prieto
- Hepatic Biliary and Pancreatic National Center-Teaching and Assistance Unit (UDA) from Uruguay University (UDELAR), Montevideo, Uruguay; National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - J Medina
- Hepatic Biliary and Pancreatic National Center-Teaching and Assistance Unit (UDA) from Uruguay University (UDELAR), Montevideo, Uruguay; National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - M Valverde
- Hepatic Biliary and Pancreatic National Center-Teaching and Assistance Unit (UDA) from Uruguay University (UDELAR), Montevideo, Uruguay; National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - J Castelli
- National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - G Grecco
- National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - A Leites
- Hepatic Biliary and Pancreatic National Center-Teaching and Assistance Unit (UDA) from Uruguay University (UDELAR), Montevideo, Uruguay; National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - G Zunini
- Hepatic Biliary and Pancreatic National Center-Teaching and Assistance Unit (UDA) from Uruguay University (UDELAR), Montevideo, Uruguay; National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - S Gozalez
- Hepatic Biliary and Pancreatic National Center-Teaching and Assistance Unit (UDA) from Uruguay University (UDELAR), Montevideo, Uruguay; National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - M Harguindeguy
- Hepatic Biliary and Pancreatic National Center-Teaching and Assistance Unit (UDA) from Uruguay University (UDELAR), Montevideo, Uruguay; National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - S Gerona
- Hepatic Biliary and Pancreatic National Center-Teaching and Assistance Unit (UDA) from Uruguay University (UDELAR), Montevideo, Uruguay; National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
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Mainardi V, Rando K, Olivari D, Rey G, Castelli J, Grecco G, Leites A, Harguindeguy M, Gerona S. Mortality Analysis of Acute Liver Failure in Uruguay. Transplant Proc 2018; 50:465-471. [PMID: 29579829 DOI: 10.1016/j.transproceed.2017.12.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 12/14/2017] [Accepted: 12/15/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND Acute liver failure (ALF) is a syndrome with high mortality. OBJECTIVE Describe characteristics and outcomes of patients with ALF in Uruguay, and identify factors associated with mortality. METHODS A retrospective analysis of 33 patients with ALF was performed between 2009 and 2017. RESULTS The patients' median age was 43 years, and 64% were women. Average Model for End-Stage Liver Disease (MELD) score at admission was 33. The median referral time to the liver transplant (LT) center was 7 days. The most common etiologies were viral hepatitis (27%), indeterminate (21%), autoimmune (18%), and Wilson disease (15%). Overall mortality was 52% (71% of transplanted and 46% of nontransplanted patients). Dead patients had higher referral time (10 vs 4 days, P = .008), higher MELD scores at admission (37 vs 28) and highest achieved MELD scores (42 vs 29; P < .001), and higher encephalopathy grade III to IV (94% vs 25%, P < .001) than survivors. Patients without LT criteria (n = 4) had lower MELD score at admission (25 vs 34, P = .001) and highest achieved MELD score (27 vs 37, P = .008) compared with the others. Patients with LT criteria but contraindications (n = 7) had higher MELD scores at admission (38 vs 31, P = .02), highest achieved MELD scores (41 vs 34, P = .03), and longer referral time (10 days) than those without contraindications (3.5 days) or those without LT criteria (7.5 days, P = .02). Twenty-two patients were listed; LT was performed in 7, with a median time on waiting list of 6 days. CONCLUSIONS ALF in Uruguay has high mortality associated with delayed referral to the LT center, MELD score, and encephalopathy. The long waiting times to transplantation might influence mortality.
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Affiliation(s)
- V Mainardi
- Hepatic Biliary and Pancreatic National Center-Teaching and Assistance Unit (UDA) from Uruguay University (UDELAR), Montevideo, Uruguay; National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay.
| | - K Rando
- Hepatic Biliary and Pancreatic National Center-Teaching and Assistance Unit (UDA) from Uruguay University (UDELAR), Montevideo, Uruguay; National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - D Olivari
- Hepatic Biliary and Pancreatic National Center-Teaching and Assistance Unit (UDA) from Uruguay University (UDELAR), Montevideo, Uruguay; National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - G Rey
- Hepatic Biliary and Pancreatic National Center-Teaching and Assistance Unit (UDA) from Uruguay University (UDELAR), Montevideo, Uruguay
| | - J Castelli
- National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - G Grecco
- National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - A Leites
- Hepatic Biliary and Pancreatic National Center-Teaching and Assistance Unit (UDA) from Uruguay University (UDELAR), Montevideo, Uruguay; National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - M Harguindeguy
- Hepatic Biliary and Pancreatic National Center-Teaching and Assistance Unit (UDA) from Uruguay University (UDELAR), Montevideo, Uruguay; National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - S Gerona
- Hepatic Biliary and Pancreatic National Center-Teaching and Assistance Unit (UDA) from Uruguay University (UDELAR), Montevideo, Uruguay; National Liver Transplant Program, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
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11
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Noceti O, Pouché L, Esperón P, Lens D, Vital M, Touriño C, Gerona S, Woillard JB, Marquet P. Activity of the Calcineurin Pathway in Patients on the Liver Transplantation Waiting List: Factors of Variability and Response to Tacrolimus Inhibition. Clin Chem 2017; 63:1734-1744. [DOI: 10.1373/clinchem.2017.272534] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 08/02/2017] [Indexed: 01/10/2023]
Abstract
Abstract
BACKGROUND
We sought to evaluate, in patients on a liver transplantation waiting list, potential biomarkers of the base calcineurin pathway activity with use of a new model of nonstimulated peripheral blood mononuclear cells (PBMC) and ex vivo response to tacrolimus (TAC).
METHODS
The calcineurin pathway activity was explored ex vivo in stimulated and nonstimulated PBMC from 19 patients. The inhibition of NFAT1 translocation to PBMC nuclei, expression of intracellular IL-2, and membrane CD25 in different T-cell subsets were measured by multiparametric flow cytometry before and after exposure to TAC. We also studied the influence on the individual response of polymorphisms in 3 key genes of the calcineurin pathway: PPIA, PPP3CA, and IL2RA.
RESULTS
All pharmacodynamics profiles closely fitted an I/Imax sigmoid model. Interindividual variability was higher in nonstimulated than in stimulated conditions, as well as in the presence of TAC. IL-2+CD8+ cells at TAC Imax showed the highest interindividual variability, suggesting its usefulness as a biomarker of individual TAC effects integrating many different sources of regulation and variability. Moreover, in the absence of TAC, patients with end-stage liver disease exhibited lower NFAT1 translocation and T-cell activation than healthy volunteers from a previous study under similar conditions. Multivariate statistical analysis showed strong and significant associations between TAC pharmacodynamic parameters and 2 polymorphisms in the gene-coding cyclophilin A (rs8177826 and rs6850).
CONCLUSIONS
We show the feasibility of using nonstimulated PBMCs to explore the calcineurin pathway under more physiologic conditions and point toward potential biomarkers for TAC pharmacodynamic monitoring. ClinicalTrials.gov Identifier: NCT01760356
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Affiliation(s)
- Ofelia Noceti
- U850 INSERM, University of Limoges, CHU Limoges, FHU SUPORT, Limoges, France
- Clinical Biochemistry Department, School of Chemistry, Universidad de la República, Montevideo, Uruguay
- Liver Diseases Department, National Center for Liver Transplantation, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - Lucie Pouché
- U850 INSERM, University of Limoges, CHU Limoges, FHU SUPORT, Limoges, France
| | - Patricia Esperón
- Clinical Biochemistry Department, School of Chemistry, Universidad de la República, Montevideo, Uruguay
| | - Daniela Lens
- Department of Fundamental Medicine, School of Medicine, Universidad de la República, Montevideo, Uruguay
| | - Marcelo Vital
- Clinical Biochemistry Department, School of Chemistry, Universidad de la República, Montevideo, Uruguay
| | - Cristina Touriño
- Department of Fundamental Medicine, School of Medicine, Universidad de la República, Montevideo, Uruguay
| | - Solange Gerona
- Liver Diseases Department, National Center for Liver Transplantation, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | | | - Pierre Marquet
- U850 INSERM, University of Limoges, CHU Limoges, FHU SUPORT, Limoges, France
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12
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Cancela F, Ramos N, Mirazo S, Mainardi V, Gerona S, Arbiza J. Detection and molecular characterization of Torque Teno Virus (TTV) in Uruguay. Infect Genet Evol 2016; 44:501-506. [PMID: 27510954 DOI: 10.1016/j.meegid.2016.08.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 08/05/2016] [Accepted: 08/06/2016] [Indexed: 01/03/2023]
Abstract
Torque Teno Virus (TTV), member of Anelloviridae family, is considered a worldwide distributed emergent virus and is currently classified into seven genogroups. Interestingly, the pathogenicity of TTV remains unclear. However, it has been constantly associated to hepatitis cases of unknown etiology (HUE) as well as extensively studied in concurrent infections with Hepatitis B Virus (HBV), Hepatitis C Virus (HCV) and Human Immunodeficiency Virus type 1 (HIV-1). In South America, TTV epidemiological data is scant, involving some studies from Brazil, Venezuela, Colombia and Bolivia. The aim of this work was to investigate for the first time in Uruguay the presence of TTV by a nested-PCR system in 85 human serum samples infected with HBV and/or HCV and/or HIV-1 and in HUE cases. Overall, our results reported a TTV infection rate of 79% (67/85). Furthermore, the molecular characterization of Uruguayan strains revealed that one of them clustered in genogroup 1, while the remaining ones formed separate clusters closely related to genogroup 3, which should be confirmed by complete genome sequencing. Further investigation about TTV circulation in Uruguayan population is needed in order to provide additional information about the genetic variability and TTV epidemiology in South America.
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Affiliation(s)
- Florencia Cancela
- Sección Virología, Facultad de Ciencias, Universidad de la República, Iguá 4225, 11400 Montevideo, Uruguay
| | - Natalia Ramos
- Sección Virología, Facultad de Ciencias, Universidad de la República, Iguá 4225, 11400 Montevideo, Uruguay
| | - Santiago Mirazo
- Sección Virología, Facultad de Ciencias, Universidad de la República, Iguá 4225, 11400 Montevideo, Uruguay
| | - Victoria Mainardi
- Servicio de Hepatología, Hospital Central de las Fuerzas Armadas, Ministerio de Defensa Nacional, Avenida 8 de Octubre 3060, 11800 Montevideo, Uruguay
| | - Solange Gerona
- Servicio de Hepatología, Hospital Central de las Fuerzas Armadas, Ministerio de Defensa Nacional, Avenida 8 de Octubre 3060, 11800 Montevideo, Uruguay
| | - Juan Arbiza
- Sección Virología, Facultad de Ciencias, Universidad de la República, Iguá 4225, 11400 Montevideo, Uruguay.
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13
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Prieto J, Medina J, López M, Rando K, Iglesias C, Harguindeguy M, Leites A, Etlin A, Menéndez J, Valverde M, Scalone P, Castelli J, Grecco G, Abelleira M, González L, Gerona S. Impact of a Multimodal Approach in Prevention of Surgical Site Infection in Hepatic Transplant Recipients. Transplant Proc 2016; 48:658-64. [DOI: 10.1016/j.transproceed.2016.02.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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14
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Noceti OM, Woillard JB, Boumediene A, Esperón P, Taupin JL, Gerona S, Valverde M, Touriño C, Marquet P. Tacrolimus Pharmacodynamics and Pharmacogenetics along the Calcineurin Pathway in Human Lymphocytes. Clin Chem 2014; 60:1336-45. [DOI: 10.1373/clinchem.2014.223511] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Abstract
BACKGROUND
Although therapeutic drug monitoring has improved the clinical use of immunosuppressive drugs, there is still interpatient variability in efficacy and toxicity that pharmacodynamic monitoring may help to reduce. To select the best biomarkers of tacrolimus pharmacodynamics, we explored the strength and variability of signal transduction and the influence of polymorphisms along the calcineurin pathway.
METHODS
Peripheral blood mononuclear cells from 35 healthy volunteers were incubated with tacrolimus (0.1–50 ng/mL) and stimulated ex vivo. Inhibition of NFAT1 (nuclear factor of activated T cells 1) translocation to the nucleus and intracellular expression of interleukin-2 in CD4+ and CD8+ T cells and the surface activation marker CD25 in CD3+ cells were measured by flow cytometry. We sequenced the promoter regions of immunophilins and calcineurin subunits and characterized selected single nucleotide polymorphisms in the genes of the calcineurin pathway with allelic discrimination assays.
RESULTS
All responses closely fitted an I/Imax sigmoid model. Large interindividual variability (n = 30) in I0 and IC50 was found for all biomarkers. Moreover, strong and statistically significant associations were found between tacrolimus pharmacodynamic parameters and polymorphisms in the genes coding cyclophilin A, the calcineurin catalytic subunit α isoenzyme, and CD25.
CONCLUSIONS
This study demonstrates the consistency and large interindividual variability of signal transduction along the calcineurin pathway, as well as the strong influence of pharmacogenetic polymorphisms in the calcineurin cascade on both the physiological activity of this route and tacrolimus pharmacodynamics.
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Affiliation(s)
- Ofelia M Noceti
- INSERM U850 and
- Liver Diseases Department, National Center for Liver Transplantation, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
- Molecular Biology Unit, Clinical Biochemistry Department, School of Chemistry, and
| | | | | | - Patricia Esperón
- Molecular Biology Unit, Clinical Biochemistry Department, School of Chemistry, and
| | - Jean-Luc Taupin
- CNRS UMR 5164, Université Bordeaux Segalen, Bordeaux, France
| | - Solange Gerona
- Liver Diseases Department, National Center for Liver Transplantation, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - Marcelo Valverde
- Liver Diseases Department, National Center for Liver Transplantation, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay
| | - Cristina Touriño
- Department of Fundamental Medicine, School of Medicine, Universidad de la República, Montevideo, Uruguay
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16
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Abstract
Hepatitis E virus (HEV) infection is an important public health concern in many developing countries, causing waterborne outbreaks as well as sporadic autochthonous hepatitis. HEV is mainly transmitted by the fecal–oral route in endemic areas through drinking of contaminated water. However, zoonotic transmission from animal reservoirs to humans has also been suggested. Three additional routes of HEV transmission have been proposed to occur: blood borne, human to human, and vertical transmission from mother to child. Acute HEV infection is usually diagnosed by detecting specific anti-HEV antibodies. However, the performance of the available assays in different settings is not optimal. Analysis of HEV ribonucleic acid in biologic specimens such as stools, serum, and liver biopsy by using nucleic acid amplification techniques is also employed. Nonetheless, additional consensus regarding the best technologies suitable for serosurveys and diagnosis of acute HEV infection is also needed. This review article summarizes the current status of HEV infection end epidemiology with particular emphasis in transmission, diagnosis, and clinical management.
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Affiliation(s)
- Santiago Mirazo
- Laboratory of Virology, Faculty of Sciences, University of the Republic, Montevideo, Uruguay
| | - Natalia Ramos
- Laboratory of Virology, Faculty of Sciences, University of the Republic, Montevideo, Uruguay
| | - Victoria Mainardi
- Hepatic Diseases Unit, Central Hospital of the Armed Forces, Montevideo, Uruguay
| | - Solange Gerona
- Hepatic Diseases Unit, Central Hospital of the Armed Forces, Montevideo, Uruguay
| | - Juan Arbiza
- Laboratory of Virology, Faculty of Sciences, University of the Republic, Montevideo, Uruguay
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17
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Rando K, Harguindeguy M, Leites A, Ettlin A, González S, Scalone P, Martínez P, Viñoly M, Gerona S. [Quality standards in liver surgery: influence of multidisciplinary team work and patient centralization]. Acta Gastroenterol Latinoam 2010; 40:10-21. [PMID: 20446392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
BACKGROUND Multidisciplinary team work and centralization of health care in specialized teams, improves outcomes and quality of assistance in medical practice. OBJECTIVES To describe the evolution of surgical and anesthetic practice and outcomes during a period of improving team work and centralization of liver surgery. METHODS A retrospective descriptive study of the type of surgery, anesthesia practice, outcomes and hospitalization was performed in 68 patients that underwent major hepatic surgery in our service, between Febriary 2004 and December 2007. RESULTS Fifty-one patients (75%) had hydatid liver disease. Ten surgeries (15%) were categorized as major; 20 (29%) as minor and 38 (56%) as hydatidic cystectomy. The number of surgeries tends to increase by year: 2004 (n = 13); 2005 (n = 14); 2006 (n = 18); 2007 (n = 23). An 87% of the anesthetics techniques were combined: epidural-general (n = 49; 72%) and spinal-general (n = 10O; 15%). The use of thoracic epidural was 0% in 2004 and 59% in 2007. A 62% of the cases bled less than 500 mL and 28% of the patients were transfused. The transfused volume in those patients (1,120 +/- 618mL) was 12% of the mean volume documented in 1998 in the same surgical service. There were no re-interventions or mortality. An 85% of the patients were admitted to the intensive care unit (ICU) for postoperative care in 2004 compared with only 22% in 2007. An 80% of the patients were discharged fom the hospital in the first 8 days after surgery (the majority by the fourth day). CONCLUSIONS Our multidisciplinary approach and teamwork may have positively influenced quality standards in liver surgery by diminishing transfusions of blood products and utilization of ICU resources.
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Affiliation(s)
- Karina Rando
- Servicio de Enfermedades Hepáticas y Transplante, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay.
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18
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Villamil AG, Bandi JC, Galdame OA, Gerona S, Gadano AC. Efficacy of lidocaine in the treatment of pruritus in patients with chronic cholestatic liver diseases. Am J Med 2005; 118:1160-3. [PMID: 16194649 DOI: 10.1016/j.amjmed.2005.05.031] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2004] [Accepted: 05/04/2005] [Indexed: 12/12/2022]
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19
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Barcán LA, Dallurzo ML, Clara LO, Valledor A, Macías S, Zorkin E, Gerona S, Livellara B. Toxoplasma gondii pneumonia in liver transplantation: survival after a severe case of reactivation. Transpl Infect Dis 2002; 4:93-6. [PMID: 12220246 DOI: 10.1034/j.1399-3062.2002.t01-1-00006.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Toxoplasmosis is an infrequent infection in solid organ transplantation, except in heart transplantation, where the grafting of a positive organ in a negative recipient transmits the infection in a high percentage of cases, in the absence of prophylaxis. We report a case of pneumonia by Toxoplasma gondii in a woman who received a liver transplant and had pre-transplant positive serology. Diagnosis was made by cytologic examination of bronchoalveolar lavage fluid, where the parasite was observed with hematoxylin-eosin and Giemsa staining. That finding was confirmed by direct immunofluorescence and positive polymerase chain reaction. The patient had a favorable outcome, although she had not initially received first-choice drugs. This was a case of severe illness secondary to reactivation of Toxoplasma infection, diagnosed pre-mortem and with a favorable outcome. Duration of treatment and need for secondary prophylaxis in these patients are discussed in the literature. Although infrequent, toxoplasmosis must be considered among the differential diagnoses of pulmonary infiltrates in solid organ transplantation.
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Affiliation(s)
- Laura A Barcán
- Infectious Diseases Section, Internal Medicine Service, Hospital Italiano de Buenos Aires, Gascón 450, Capital Federal, Buenos Aires, Argentina.
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Albornoz L, Alvarez D, Otaso JC, Gadano A, Salviú J, Gerona S, Sorroche P, Villamil A, Mastai R. Von Willebrand factor could be an index of endothelial dysfunction in patients with cirrhosis: relationship to degree of liver failure and nitric oxide levels. J Hepatol 1999; 30:451-5. [PMID: 10190728 DOI: 10.1016/s0168-8278(99)80104-4] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND/AIMS The aim of this study was to evaluate the relationship between plasma levels of von Willebrand factor (vWF), a marker of endothelial cell activation, and nitric oxide, a powerful vasodilator synthesized by endothelial cells, in 27 patients with cirrhosis at different stages of the disease. These results were compared with those of age-matched normal, healthy subjects (n=10). METHODS vWF:antigen was measured by electro-immunodiffusion test and serum nitrite and nitrate levels, the stable end products of nitric oxide metabolism, were determined by an enzymatic procedure. RESULTS vWF:antigen and nitrite/nitrate levels were significantly higher in cirrhotic patients (367+/-185% and 29.3+/-10.8 micromol/l) than in healthy subjects (92+/-20% and 19.2+/-8.3 micromol/l, p<0.05, respectively). Higher levels of vWF:antigen and nitrites/nitrates were observed in patients with more advanced degrees of liver failure, as reflected by quantitative Child-Pugh's score (516+/-154% and 38.3+/-7.8 micromol/l in Child-Pugh > or = 9 vs 227+/-61% and 21.0+/-6.1 micromol/l in Child-Pugh <9, p<0.001, respectively). Moreover, both endothelial-related factors were higher in patients with ascites than those without ascites (543+/-158% and 37.8+/-8.9 micromol/l vs 262+/-103% and 24.4+/-8.8 micromol/l, p<0.001, respectively). In the overall series, a highly significant linear correlation between nitrites/nitrates and vWF:antigen levels was observed in patients with cirrhosis (r=0.79, p<0.001). CONCLUSIONS These results support a cirrhosis-related endothelial dysfunction and suggest that plasma vWF measurement could be useful as a marker of endothelial disturbance in patients with cirrhosis.
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Affiliation(s)
- L Albornoz
- Sección de Higado, Laboratorio Central, Hospital Italiano, Buenos Aires, Argentina
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21
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Alvarez D, Gerona S, Waisburg Z, Ciardullo M, de Santibañes E, Mastai R. Splanchnic hyperemia after liver transplantation in patients with end-stage liver disease. Liver Transpl Surg 1998; 4:300-3. [PMID: 9649644 DOI: 10.1002/lt.500040403] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Systemic and splanchnic hemodynamic parameters were evaluated in 12 patients with cirrhosis before and 3 and 6 months after liver transplantation. Results were compared with those obtained in 8 healthy subjects. Three months after liver transplantation recipients had an increase in mean arterial pressure (98 +/- 7 v 78 +/- 9 mmHg; P < .05), an insignificant decrease in cardiac index (3. 4 +/- 0.6 v 4.0 +/- 1.0 L . min-1 . m-2), and a marked increase in peripheral vascular resistance (1,563 +/- 308 v 800 +/- 205 dyne . s . cm-5; P < .05) compared with pretransplantation values. Portal blood flow was also significantly increased (1,494 +/- 200 v 829 +/- 130 mL/min; P < .05). These hemodynamic changes were more pronounced 6 months after transplantation (mean arterial pressure, 100 +/- 8 mmHg; cardiac index, 3.0 +/- 1.0 L . min-1 . m-2; P < .01; peripheral vascular resistance, 1,680 +/- 405 dyne . s . cm-5; portal blood flow, 1,520 +/- 180 mL/min). Systemic hemodynamics 6 months after liver transplantation were similar to those observed in the healthy control group (mean arterial pressure, 95 +/- 6 mmHg; cardiac index, 2.9 +/- 0.9 L . min-1 . m-2; peripheral vascular resistance, 1,480 +/- 380 dyne . s . cm-5). However, portal blood flow was still significantly higher than in healthy controls at 6 months (1,520 +/- 180 v 910 +/- 140 mL/min; P < .05). This study shows that systemic hemodynamics are normalized after liver transplantation. However, an increase in portal blood flow occurs and persists for at least 6 months after liver transplantation. Further studies are needed to clarify the cause of the abnormally high portal flows.
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Affiliation(s)
- D Alvarez
- Sección de Ecografía, Buenos Aires, Argentina
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22
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Gerona S, Laudano O, Macías S, San Román E, Galdame O, Torres O, Sorkin E, Ciardullo M, de Santibañes E, Mastai R. [Renal failure in patients with liver transplant: incidence and predisposing factors]. Acta Gastroenterol Latinoam 1997; 27:113-7. [PMID: 9412139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Renal failure is a common finding in patients undergoing orthotopic liver transplantation. The aim of the present study was to evaluate the incidence, prognostic value of pre, intra and postoperative factors and severity of renal dysfunction in patients who undergo liver transplantation. Therefore, the records of 38 consecutive adult patients were reviewed. Renal failure was defined arbitrarily as an increase in creatinine (> 1.5 mg/dl) and/or blood urea (> 80 mg/dl). Three patients were excluded of the final analysis (1 acute liver failure and 2 with a survival lower than 72 hs.) Twenty one of the 35 patients has renal failure after orthotopic liver transplantation. Six of these episodes developed early, having occurred within the first 6 days. Late renal impairment occurred in 15 patients within the hospitalization (40 +/- 10 days) (Mean +/- SD). In he overall series, liver function, evaluated by Child-Pugh classification, a higher blood-related requirements and cyclosporine levels were observed more in those who experienced renal failure than those who did not (p < 0.05). Early renal failure was related with preoperative (liver function) and intraoperative (blood requirements) factors and several causes (nephrotoxic drugs and graft failure) other than cyclosporine were present in patients who developed late renal impairment. No mortality. No mortality was associated with renal failure. We conclude that renal failure a) is a common finding after liver transplantation, b) the pathogenesis of this complication is multifactorial and, c) in not related with a poor outcome.
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Affiliation(s)
- S Gerona
- Programa de Transplante Hepático, Hospital Italiano, Buenos Aires, Argentina
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Patrucco L, Gerona S, Galdame O, Torres J, López P, Toselli P, Serra L, Mastai R. 3-07-05 Preservation of CO2 dependent regulation of cerebral blood flow in patients with cirrhosis. J Neurol Sci 1997. [DOI: 10.1016/s0022-510x(97)85546-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Alvarez D, de las Heras M, Abecasis R, Terg R, Gerona S, Albornoz L, Galdame O, Torres J, Mastai R. Daily variation in portal blood flow and the effect of propranolol administration in a randomized study of patients with cirrhosis. Hepatology 1997; 25:548-50. [PMID: 9049196 DOI: 10.1002/hep.510250309] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A nocturnal increase in portal pressure and blood flow was demonstrated in patients with cirrhosis, suggesting that these hemodynamic changes may contribute to the triggering of the hemorrhagic episodes observed during the night in these patients. It is known that propranolol reduces portal flow, thus reducing the risk of variceal bleeding. In a double-blind, placebo-controlled study, we evaluated the effect of long-term propranolol administration on the daily fluctuation of systemic and splanchnic hemodynamic parameters in 14 patients with cirrhosis. Cardiac output and portal blood flow were measured by the Doppler technique. A daily fluctuation of both cardiac output and portal blood flow was observed, peaking at midnight. beta-Adrenergic blockade was manifested by a significant reduction in heart rate (-21% +/- 4%, P < .01) and cardiac output (-12% +/- 2%, P < .05). A significant decrease in portal blood flow (-20% +/- 4%, P < .01) was also observed in these patients. Propranolol administration blunted the time-related changes in cardiac output and portal blood flow. In contrast, patients receiving placebo had a nocturnal peak of both parameters similar to that observed under basal conditions. Our study shows that chronic propranolol administration abolishes the nocturnal peak of portal blood flow in patients with cirrhosis and indicates a preventive effect of propranolol in these patients.
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Affiliation(s)
- D Alvarez
- Seccion Ecografia, Universidad de Buenos Aires, Argentina
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Sánchez S, Albornoz L, Bandi JC, Gerona S, Mastai R. Pentoxifylline, a drug with rheological effects, decreases portal pressure in an experimental model of cirrhosis. Eur J Gastroenterol Hepatol 1997; 9:27-31. [PMID: 9031895 DOI: 10.1097/00042737-199701000-00009] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To evaluate the influences of blood viscosity changes, mediated by a haemorheological agent, on splanchnic and systemic haemodynamic parameters in rats with cirrhosis due to chronic bile duct ligation. METHODS Blood viscosity was measured using a cone-plate viscometer and whole blood filterability was determined by a filtration method. Cardiac index and portal venous inflow were measured using radioactive microspheres. Measurements were performed 30 min after double-blind administration of placebo or pentoxifylline (25 mg/kg, intravenously). RESULTS As compared with placebo, pentoxifylline-treated cirrhotic rats had a lower portal pressure (13.8 +/- 1.4 vs. 12.1 +/- 1.6 mmHg, P < 0.05) and blood viscosity at shear rates of 115/s (6.6 +/- 0.8 vs. 5.8 +/- 0.3 mPas, P < 0.05), associated with an improvement of whole blood filterability (45.0 +/- 12.9 vs. 20.0 = 3.9 s/ml, P < 0.01). Similar values of mean arterial pressure, cardiac index and portal venous inflow were observed in both groups. A significant correlation was found between portal pressure and blood viscosity at a shear rate of 115/s (r = 0.71, P < 0.01). CONCLUSION These results suggest that portal pressure can be modified by pentoxifylline in an experimental model of cirrhosis. These haemodynamic changes are associated with a lower blood viscosity and whole blood filterability. Pentoxifylline may be a new approach in the treatment of portal hypertension.
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Affiliation(s)
- S Sánchez
- Sección de Hígado, Hospital Italiano, Buenos Aires, Argentina
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