Outcomes of re-referrals of patients with alcohol-associated liver disease, who were previously declined for liver transplantation.

Since 2018, our program has utilized specific psychosocial criteria and a multidisciplinary approach to assess patients for liver transplant due to alcohol-associated liver disease (ALD), rather than the 6-month abstinence rule alone. If declined based on these criteria, specific recommendations are provided to patients and their providers regarding goals for re-referral to increase the potential for future transplant candidacy. Recommendations include engagement in treatment for alcohol use disorder, serial negative biomarker testing, and maintenance of abstinence from alcohol. In our current study, we evaluate the outcomes of patients with ALD, who were initially declined upon assessment and re-referred to our program. This is a retrospective cohort study that includes 98 patients with ALD, who were previously declined for liver transplantation and were subsequently re-referred for liver transplant assessment between May 1, 2018, and December 31, 2021. We assess the outcomes of patients who were re-referred including acceptance for transplantation following a second assessment. Of the 98 patients who were re-referred, 46 (46.9%) fulfilled the recommendations made and proceeded to further medical evaluation. Nine were eventually transplanted; others are listed and are waiting for transplant. The presence of a partner was independently associated with a higher rate of acceptance (OR 0.16, 95% CI: 0.03-0.97, p = 0.05). Most of the patients who did not proceed further (n = 52) were declined again due to ALD contraindications (n = 33, 63.4%), including ongoing drinking and lack of engagement in recommended addiction treatment. Others had medical contraindications (11.2%), clinically improved (6.1%), had adherence issues (5.1%), or lack of adequate support (2%). Patients with ALD previously declined for a liver transplant can be re-referred and successfully accepted for transplantation by fulfilling the recommendations made by the multidisciplinary team. Important factors including ongoing abstinence, engagement in addiction treatment, and social support are key for successful acceptance.

Implementation of a re-linkage to care strategy in patients with chronic hepatitis C who were lost to follow-up in Latin America.

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.

Outcome of COVID-19 in Patients With Autoimmune Hepatitis: An International Multicenter Study.

BACKGROUND AND AIMS: Data regarding outcome of COVID-19 in patients with autoimmune hepatitis (AIH) are lacking. APPROACH AND RESULTS: We performed a retrospective study on patients with AIH and COVID-19 from 34 centers in Europe and the Americas. We analyzed factors associated with severe COVID-19 outcomes, defined as the need for mechanical ventilation, intensive care admission, and/or death. The outcomes of patients with AIH were compared to a propensity score-matched cohort of patients without AIH but with chronic liver diseases (CLD) and COVID-19. The frequency and clinical significance of new-onset liver injury (alanine aminotransferase > 2 × the upper limit of normal) during COVID-19 was also evaluated. We included 110 patients with AIH (80% female) with a median age of 49 (range, 18-85) years at COVID-19 diagnosis. New-onset liver injury was observed in 37.1% (33/89) of the patients. Use of antivirals was associated with liver injury (P = 0.041; OR, 3.36; 95% CI, 1.05-10.78), while continued immunosuppression during COVID-19 was associated with a lower rate of liver injury (P = 0.009; OR, 0.26; 95% CI, 0.09-0.71). The rates of severe COVID-19 (15.5% versus 20.2%, P = 0.231) and all-cause mortality (10% versus 11.5%, P = 0.852) were not different between AIH and non-AIH CLD. Cirrhosis was an independent predictor of severe COVID-19 in patients with AIH (P < 0.001; OR, 17.46; 95% CI, 4.22-72.13). Continuation of immunosuppression or presence of liver injury during COVID-19 was not associated with severe COVID-19. CONCLUSIONS: This international, multicenter study reveals that patients with AIH were not at risk for worse outcomes with COVID-19 than other causes of CLD. Cirrhosis was the strongest predictor for severe COVID-19 in patients with AIH. Maintenance of immunosuppression during COVID-19 was not associated with increased risk for severe COVID-19 but did lower the risk for new-onset liver injury during COVID-19.

Villous atrophy, an endoscopic and diagnostic challenge.

A 57-year-old female presented with a five-year history of non-bloody diarrhea, reaching 10 to 20 daily depositions without abdominal cramping and a weight loss of 25 kg. Past medical history was significant for rheumatoid arthritis treated with rituximab during the last six years. All her previous endoscopic and histological studies identified lymphocytic infiltration. Previously, she received treatment with rifaximin, cholestyramine, and loperamide without improvement.

Impacto de la vacunación contra hepatitis B en la prevalencia de infección por virus B y Delta en la cuenca amazónica colombiana.

No disponible.

Colombian experience in the treatment of hepatitis C with direct-acting antiviral agents.

There are few published real-world studies on hepatitis C in Latin America. This paper describes a cohort of Colombian subjects treated with direct-acting antiviral agents. A total of 195 patients from 5 hepatology centers in 4 Colombian cities were retrospectively studied. For each patient, serum biomarkers were obtained, and Child-Pugh, MELD, cirrhosis and fibrosis stage were calculated. Additionally, viral load was quantified at initiation, end of treatment and at 12 weeks of completion. Adverse effects were recorded. Patients with liver transplant were compared with non-transplanted patients in terms of serum biomarkers. The patients had received 9 different regimes. The most prevalent viral genotype was 1b (81.5%). Overall, 186 patients (95.4%) attained sustained virologic response. When comparing transplanted vs. non-transplanted patients, those in the non-transplanted group were more likely to have cirrhosis (52.6% vs. 12.5%, p = 0.0004). Pre-treatment viral load was higher in the transplant group (1 743 575 IQR = 1 038 062-4 252 719 vs. 345 769 IQR = 125 806-842 239; p < 0.0001) as well as ALT and AST levels (82.5 IQR 43.5-115.5 vs. 37.0 IQR = 24.7-73.3; p = 0.0009 and 70 IQR = 41-140 vs. 37 IQR = 24-68; p = 0.004 respectively). Adverse events were reported by 28.7% of the patients; asthenia (5.6%) was the most prevalent. Our results are comparable with those from other countries in terms of therapy and biomarkers. However, our cohort reported less adverse events. Further research is needed in the region.

Genetic variants in triglyceride metabolism genes among individuals with hypertriglyceridemia in Colombia.

BACKGROUND: The genetic substrate of severe hypertriglyceridemia (sHTG) in Latin America is insufficiently understood. OBJECTIVE: To identify genetic variants in genes related to triglyceride (TG) metabolism among adults with sHTG from Colombia. METHODS: In individuals with plasma TG≥880 mg/dL at least once in their lifetime, we amplified and sequenced all exons and intron/exon boundaries of the genes LPL, APOC2, APOA5, GPIHBP1 and LMF1. For each variant we ascertained its location, zygosity, allelic frequency and pathogenicity classification according to American College of Medical Genetics (ACMG) criteria. RESULTS: The study included 166 participants (62 % male, mean age 50), peak TG levels ranged between 894 and 11,000 mg/dL. We identified 92 variants: 19 in LPL, 7 in APOC2, 11 in GPIHBP1, 38 in LMF1, and 17 in APOA5. Eighteen of these variants had not been reported. We identified a new pathogenic variant in LMF1 (c.41C>A; p.Ser14*), a new likely pathogenic variant in LMF1 (c.1527 C > T; p.Pro509=, also expressed as c.1447C>T; p.Gln483*), and a known pathogenic variant in LMF1 (c.779G>A; p.Trp260*). Four participants were heterozygous for variant c.953A>G; p.Asn318Ser in LPL, a known risk factor for hypertriglyceridemia. Participants with variants of unknown significance (VUS) in LMF1 had significantly higher peak TG than those with VUS in other genes. Peak TG were 4317 mg/dL in participants with a history of pancreatitis, and 1769 mg/dL in those without it (p = 0.001). CONCLUSION: Our study identified variants associated with sHTG among Latinos, and showed that genetic variation in LMF1 may be frequently associated with sHTG in this population.

Gastrointestinal manifestations of systemic sclerosis: An updated review.

Systemic sclerosis is an autoimmune disease characterized by vascular disease, fibrosis of the skin, and internal organ dysfunction. Gastrointestinal involvement is the most frequent complication of internal organs, impacting up to 90% of patients. Gastrointestinal involvement can affect any region of the gastrointestinal tract from the mouth to the anus, with a predominance of disorders being observed at the level of the upper digestive tract. The gastrointestinal involvement primarily involves the esophagus, small bowel, and rectum. The severity of gastrointestinal involvement affects quality of life and is a marker of worse prognosis and mortality in these patients. In this review, we describe the current findings regarding gastrointestinal involvement by this entity.

Post-transplant lymphoproliferative disorders in a cohort of adult patients with a liver transplant from a reference hospital in Bogotá, Colombia / Trastornos linfoproliferativos en una cohorte de pacientes adultos con trasplante hepático atendidos en un hospital de referencia en Bogotá, Colombia.

Introduction: The post-transplant lymphoproliferative disorders (PTLD) are characterized by an uncontrolled pathological lymphoid proliferation as a consequence of transplant immunosuppression therapy. Objective: To characterize the clinical and pathological characteristics of PTLD in a cohort of adult patients with liver transplant during a 15 year period at the Hospital Universitario Fundación Santa Fe de Bogota. Materials and methods: We conducted an observational retrospective study by searching for the PTLD cases diagnosed during the study period in the databases of the Liver Transplantation Unit and the Pathology Department. We collected the epidemiological, clinical, and pathological information and performed the corresponding statistics analyses. Results: During the research period, 572 patients were transplanted; the incidence of PTDL was 2.44%; 79% of them were man and the average age at the time of diagnosis was 62.5 years; 71% of the cases were diagnosed during the first year after the transplant and the same percentage EBV-seropositive patients. The most frequent pathological phenotype was monomorphic and the majority of tumors was detected in the hepatic hilum. The one-year survival was 50%. Conclusion: The high proportion of early cases and the high frequency of Epstein-Barr virus seropositivity both in donors and receptors drewour attention. More studies are necessary to have a better understanding of this condition in Colombia. This is the first PTLD clinical and pathological analysis in liver-transplant patients from Colombia to date.

Introducción. Los trastornos linfoproliferativos después de un trasplante se caracterizan por la proliferación descontrolada de linfocitos como consecuencia del tratamiento inmunosupresor posterior a este. Objetivo. Caracterizar clínica y patológicamente los casos de trastornos linfoproliferativos después de trasplante (Post-Transplant Lymphoproliferative Disorders, PTLD) en una cohorte de pacientes adultos con trasplante de hígado atendidos a lo largo de 15 años en el Hospital Universitario Fundación Santa Fe de Bogotá. Materiales y métodos. Se hizo un estudio observacional retrospectivo a partir de la revisión de las bases de datos de la Unidad de Trasplante Hepático y del Departamento de Patología del Hospital en busca de los casos de PTLD diagnosticados durante el periodo de estudio. Se recolectó la información epidemiológica, clínica y patológica, y se adelantaron los análisis estadísticos. Resultados. Durante el periodo de estudio, hubo 572 pacientes con trasplante de hígado, la incidencia de trastornos linfoproliferativos fue de 2,44 %, el 79 % en hombres, y la edad promedio en el momento del diagnóstico fue de 62,5 años. El 71 % de los casos se presentó durante los primeros 12 meses después del trasplante y el mismo porcentaje fue seropositivo para el virus de Epstein-Barr (EBV). El fenotipo patológico más frecuente fue el monomorfo y la mayoría de los tumores se detectaron en el hilio hepático. La supervivencia al año fue del 50 %. Conclusiones. Llamó la atención el alto porcentaje de casos de presentación temprana, así como la gran frecuencia de seropositividad para el EBV tanto en los donantes como en los receptores. Deben adelantarse estudios más detallados para una mejor comprensión de esta enfermedad en el país. Este es el primer análisis clínico y patológico de PTLD en pacientes con trasplante de hígado adelantado en Colombia hasta la fecha.

Eosinophilic esophagitis: Current concepts in diagnosis and treatment.

Eosinophilic esophagitis is an immune-allergic pathology of multifactorial etiology (genetic and environmental) that affects both pediatric and adult patients. Its symptoms, which include heartburn, regurgitation, and esophageal stenosis (with dysphagia being more frequent in eosinophilic esophagitis in young adults and children), are similar to those of gastroesophageal reflux disease, causing delays in diagnosis and treatment. Although endoscopic findings such as furrows, esophageal mucosa trachealization, and whitish exudates may suggest its presence, this diagnosis should be confirmed histologically based on the presence of more than 15 eosinophils per high-power field and the exclusion of other causes of eosinophilia (parasitic infections, hypereosinophilic syndrome, inflammatory bowel disease, among others) for which treatment could be initiated. Currently, the 3 "D"s ("Drugs, Diet, and Dilation") are considered the fundamental components of treatment. The first 2 components, which involve the use of proton pump inhibitors, corticosteroids, immunosuppressants and empirical diets or guided food elimination based on allergy tests, are more useful in the initial phases, whereas endoscopic dilation is reserved for esophageal strictures. Herein, the most important aspects of eosinophilic esophagitis pathophysiology will be reviewed, in addition to evidence for the various treatments.

Characteristics of Inflammatory Bowel Disease Compared to Other National Centers in Colombia / Características de la enfermedad inflamatoria intestinal con respecto a otros centros nacionales de Colombia

Abstract Introduction: Inflammatory bowel disease (IBD) is an immune-mediated disease whose incidence in Latin America has increased in recent years. Aim: To analyze the demographic and clinical characteristics of patients with IBD treated in a university hospital and present the epidemiological data compared to other centers in Colombia. Patients and methods: Descriptive study of patients with IBD (1996-2019) at the Hospital Universitario Fundación Santa Fe de Bogotá. Analysis of data from centers in Medellín, Cali, Bogotá, and Cartagena. Results: Of 386 patients, 277 presented with ulcerative colitis (UC), 102 with Crohn's disease (CD), and seven with unclassifiable colitis. IBD was more frequent in women (53 %). Mortality was less than 1 %. The involvement of UC was mainly pancolitis (42.6 %). The greater the extent of the disease, the higher the hospitalization and surgery rates (OR 3.70, P < 0.01). Thirteen percent of patients with UC received biologics. Compromise due to CD was mainly ileocolonic (43.6 %) and ileal (43.6 %). The predominant clinical pattern of CD was structuring (50%). Forty-five percent received biologicals and 56 % surgery. Primary sclerosing cholangitis (PSC) was found in 4 % of patients (n = 15). Two patients with PSC developed colorectal cancer (OR 4.18; p 0.008), while 13 patients with UC developed colon cancer and seven dysplastic changes. Three patients with CD developed colon cancer. Conclusions: The results were compared to other reference centers. We found similar trends in the clinical behavior and treatment of IBD, with higher hospitalization and surgery rates in our cases.

Resumen Introducción: la enfermedad inflamatoria intestinal (EII) es una enfermedad inmunomediada, cuya incidencia en Latinoamérica ha aumentado en los últimos años. Objetivo: analizar las características demográficas y clínicas de los pacientes con EII tratados en un hospital universitario y presentar los datos epidemiológicos con respecto a otros centros en Colombia. Pacientes y métodos: estudio descriptivo de pacientes con EII (1996-2019) en el Hospital Universitario Fundación Santa Fe de Bogotá. Análisis de datos de centros de Medellín, Cali, Bogotá y Cartagena. Resultados: de 386 pacientes, 277 presentaron colitis ulcerativa (CU), 102 enfermedad de Crohn (EC) y 7 colitis no clasificable. La EII fue más frecuente en mujeres (53 %). La mortalidad fue menor de 1 %. El compromiso de la CU fue principalmente la pancolitis (42,6 %). Entre mayor la extensión de la enfermedad, más alta fue la tasa de hospitalización y cirugías (OR 3,70; p < 0,01). El 13 % de los pacientes con CU recibió biológicos. El compromiso por la EC fue principalmente ileocolónico (43,6 %) e ileal (43,6 %). El patrón clínico predominante de la EC fue estenosante (50%). El 45 % recibió biológicos y 56% cirugía. La colangitis esclerosante primaria (CEP) se encontró en 4 % de los pacientes (n = 15). Dos pacientes con CEP desarrollaron cáncer colorrectal (OR 4,18; p 0,008), mientras que 13 pacientes con CU desarrollaron cáncer de colon y 7 cambios displásicos. 3 pacientes con EC desarrollaron cáncer de colon. Conclusiones: se compararon los resultados en relación con otros centros de referencia. Encontramos tendencias similares en el comportamiento clínico y en el tratamiento de la EII, con mayores tazas de hospitalizaciones y cirugías en nuestros casos.

Colestasis en el adulto: enfoque diagnóstico y terapéutico. Revisión de tema / Diagnostic and therapeutic approach for cholestasis in the adult

Resumen La colestasis es uno de los motivos de consulta más frecuentes en hepatología. Se genera por una alteración en la síntesis, la secreción o el flujo de la bilis, a través del tracto biliar. Esta se define por una elevación de enzimas como la fosfatasa alcalina (Alkaline Phosphatase, ALP) y la gamma-glutamil transferasa, y en estadios tardíos con la hiperbilirrubinemia, al igual que con otras manifestaciones clínicas, tales como el prurito y la ictericia. El enfoque diagnóstico implica establecer el origen de dicha elevación, determinando si es intrahepática o extrahepática. Si es intrahepática, se debe esclarecer si proviene de los hepatocitos o de la vía biliar de pequeño y de gran calibre. El tratamiento dependerá de la etiología, por lo cual es importante un diagnóstico preciso. En esta revisión se presenta la fisiopatología y un enfoque diagnóstico y terapéutico.

Abstract Cholestasis is one of the most frequent reasons for hepatology consultation. It is generated by altered synthesis, secretion or flow of bile through the biliary tract and is defined by elevated levels of enzymes such as alkaline phosphatase and gamma glutamyl transferase. In late stages, hyperbilirubinemia and clinical manifestations such as pruritus and jaundice develop. The diagnostic approach involves establishment of the reasons for elevated enzyme levels and determination of whether it is intrahepatic or extrahepatic. If it is intrahepatic, the source must be determined (hepatocytes, small bile ducts, or large caliber bile ducts). Treatment depends on the etiology, so accurate diagnosis is important. This review presents the pathophysiology and a diagnostic and therapeutic approach.

Implicaciones hepáticas en la pandemia por COVID-19 / Liver implications during the COVID-19 Pandemic

La infección generada por el coronavirus, denominado SARS-CoV-2, llamada coronavirus disease 2019(COVID-19), surgió en China a finales de diciembre de 2019. Actualmente ha sido categorizada como una pandemia por la Organización Mundial de la Salud (OMS). Se han documentado alteraciones de pruebas hepáticas, sin embargo, los estudios se han enfocado en los efectos cardíacos, pulmonares y renales de esta infección. La alteración de pruebas hepáticas en el contexto de COVID-19 puede ser consecuencia de hepatitis viral, toxicidad farmacológica, inflamación o choque. También se considera como un marcador de pronóstico y gravedad de la enfermedad. El impacto de la infección por SARS-CoV-2 en pacientes con enfer-medad hepática preexistente o receptores de trasplante hepático no es claro, y se plantean distintas hipótesis sobre mayor o menor riesgo de enfermedad grave y de descompensación de la enfermedad de base.(AU)

The infection generated by the novel coronavirus SARS-CoV-2, named Coronavirus Disease 2019 (COVID-19) emerged late December of 2019 in China. It is currently categorized as a pandemic by the World Health Organization. Studies have focused on cardiac, pulmonary, and renal effects of this infection, but liver test abnormalities have also been documented. This alteration may be a consequence of viral hepatitis, phar-macological toxicity, inflammation, or shock. It is also considered a marker of prognosis and severity of the disease. The impact of SARS-CoV-2 infection in patients with pre-existing liver disease or liver transplant recipients is unclear, and different hypotheses exist regarding the higher or lower risk of severe disease and decompensation of the underlying disease.

Trastornos linfoproliferativos en una cohorte de pacientes adultos con trasplante hepático atendidos en un hospital de referencia en Bogotá, Colombia / Post-transplant lymphoproliferative disorders in a cohort of adult patients with a liver transplant from a reference hospital in Bogotá, Colombia

Introducción. Los trastornos linfoproliferativos después de un trasplante se caracterizan por la proliferación descontrolada de linfocitos como consecuencia del tratamiento inmunosupresor posterior a este. Objetivo. Caracterizar clínica y patológicamente los casos de trastornos linfoproliferativos después de trasplante (Post-Transplant Lymphoproliferative Disorders, PTLD) en una cohorte de pacientes adultos con trasplante de hígado atendidos a lo largo de 15 años en el Hospital Universitario Fundación Santa Fe de Bogotá. Materiales y métodos. Se hizo un estudio observacional retrospectivo a partir de la revisión de las bases de datos de la Unidad de Trasplante Hepático y del Departamento de Patología del Hospital en busca de los casos de PTLD diagnosticados durante el periodo de estudio. Se recolectó la información epidemiológica, clínica y patológica, y se adelantaron los análisis estadísticos. Resultados. Durante el periodo de estudio, hubo 572 pacientes con trasplante de hígado, la incidencia de trastornos linfoproliferativos fue de 2,44 %, el 79 % en hombres, y la edad promedio en el momento del diagnóstico fue de 62,5 años. El 71 % de los casos se presentó durante los primeros 12 meses después del trasplante y el mismo porcentaje fue seropositivo para el virus de Epstein-Barr (EBV). El fenotipo patológico más frecuente fue el monomorfo y la mayoría de los tumores se detectaron en el hilio hepático. La supervivencia al año fue del 50 %. Conclusiones. Llamó la atención el alto porcentaje de casos de presentación temprana, así como la gran frecuencia de seropositividad para el EBV tanto en los donantes como en los receptores. Deben adelantarse estudios más detallados para una mejor comprensión de esta enfermedad en el país. Este es el primer análisis clínico y patológico de PTLD en pacientes con trasplante de hígado adelantado en Colombia hasta la fecha.

Introduction: The post-transplant lymphoproliferative disorders (PTLD) are characterized by an uncontrolled pathological lymphoid proliferation as a consequence of transplant immunosuppression therapy. Objective: To characterize the clinical and pathological characteristics of PTLD in a cohort of adult patients with liver transplant during a 15 year period at the Hospital Universitario Fundación Santa Fe de Bogota. Materials and methods: We conducted an observational retrospective study by searching for the PTLD cases diagnosed during the study period in the databases of the Liver Transplantation Unit and the Pathology Department. We collected the epidemiological, clinical, and pathological information and performed the corresponding statistics analyses. Results: During the research period, 572 patients were transplanted; the incidence of PTDL was 2.44%; 79% of them were man and the average age at the time of diagnosis was 62.5 years; 71% of the cases were diagnosed during the first year after the transplant and the same percentage EBV-seropositive patients. The most frequent pathological phenotype was monomorphic and the majority of tumors was detected in the hepatic hilum. The one-year survival was 50%. Conclusion: The high proportion of early cases and the high frequency of Epstein-Barr virus seropositivity both in donors and receptors drewour attention. More studies are necessary to have a better understanding of this condition in Colombia. This is the first PTLD clinical and pathological analysis in liver-transplant patients from Colombia to date.

Colombian experience in the treatment of hepatitis C with direct-acting antiviral agents

There are few published real-world studies on hepatitis C in Latin America. This paper describes a cohort of Colombian subjects treated with direct-acting antiviral agents. A total of 195 patients from 5 hepatology centers in 4 Colombian cities were retrospectively studied. For each patient, serum biomarkers were obtained, and Child-Pugh, MELD, cirrhosis and fibrosis stage were calculated. Additionally, viral load was quantified at initiation, end of treatment and at 12 weeks of completion. Adverse effects were recorded. Patients with liver transplant were compared with non-transplanted patients in terms of serum biomarkers. The patients had received 9 different regimes. The most prevalent viral genotype was 1b (81.5%). Overall, 186 patients (95.4%) attained sustained virologic response. When comparing transplanted vs. non-transplanted patients, those in the non-transplanted group were more likely to have cirrhosis (52.6% vs. 12.5%, p = 0.0004). Pre-treatment viral load was higher in the transplant group (1 743 575 IQR = 1 038 062-4 252 719 vs. 345 769 IQR = 125 806-842 239; p < 0.0001) as well as ALT and AST levels (82.5 IQR 43.5-115.5 vs. 37.0 IQR = 24.7-73.3; p = 0.0009 and 70 IQR = 41-140 vs. 37 IQR = 24-68; p = 0.004 respectively). Adverse events were reported by 28.7% of the patients; asthenia (5.6%) was the most prevalent. Our results are comparable with those from other countries in terms of therapy and biomarkers. However, our cohort reported less adverse events. Further research is needed in the region.

Existen pocas publicaciones de evidencias del mundo real sobre hepatitis C en América Latina. En este estudio presentamos una cohorte colombiana de pacientes tratados con agentes antivirales de acción directa. Fueron analizados retrospectivamente 195 pacientes seleccionados en 5 centros de hepatología en 4 ciudades de Colombia. Dos tercios fueron mujeres y la mitad tenía ≥ 62 años. De cada uno se cuantificaron biomarcadores séricos, escala de Child-Pugh, MELD y grado de cirrosis y fibrosis. Se cuantificó carga viral al inicio, al final y a las 12 semanas después de completado el tratamiento. Se comparó la frecuencia de efectos adversos de medicamentos en trasplantados vs. no trasplantados. Los pacientes recibieron 9 esquemas de tratamiento diferentes. El genotipo más prevalente fue 1b (81.5%). La respuesta viral sostenida fue alcanzada por 186 pacientes (95.4%). El grupo no trasplantado tenía mayor frecuencia de cirrosis (52.6% vs. 12.5%, p = 0.0004). En los trasplantados, la carga viral pre-tratamiento era mayor (1 743 575 IQR = 1 038 062-4 252 719 vs. 345 769 IQR = 125 806-842 239; p = < 0.0001) igual que la ALT y la AST (82.5 IQR 43.5-115.5 vs. 37.0 IQR = 24.7-73.3; p = 0.0009 and 70 IQR = 41-140 vs. 37 IQR = 24-68; p = 0.004 respectivamente). El 28.7% refirió efectos adversos, siendo el más prevalente la astenia (5.6%). Nuestros resultados fueron comparables a los de estudios publicados en términos de terapia y biomarcadores pero nuestra cohorte presentó menos efectos adversos. Se requiere más investigación en la región.