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The study aimed to determine adjusted all-cause mortality and cause of death in persons with chronic hepatitis B virus (HBV) infection compared with age- and sex-matched persons from the general population. We used nationwide registers to identify persons aged ≥18 years with chronic HBV infection in 2002-2017 in Denmark and included 10 age- and sex-matched controls for each. Follow-up was from 6 months after diagnosis until death, emigration, or 31 December 2017. Mortality rate ratios (MRRs) adjusted for age, sex, employment, origin and comorbidity were calculated using Poisson regression. Unadjusted cause-specific mortality rate ratios with 95% confidence intervals were calculated assuming a Poisson distribution. A total of 6988 persons with chronic HBV infection and 69,847 controls were included. During a median follow-up of 7.7 years (range 0.0-15.5), 315 (5%) persons with-and 1525 (2%) without-chronic HBV infection died. The adjusted all-cause MRR was 1.5 (95% CI 1.2-2.0). Persons with chronic HBV infection had increased mortality due to liver disease including hepatocellular carcinoma (MRR 12.3 [8.6-17.7]), external causes (MRR 3.3 [2.5-4.7]), endocrine disease (MRR 3.2 [1.8-5.4]), genitourinary disease (MRR 3.2 [1.2-7.6]) and neoplasms (except hepatocellular carcinoma; MRR 1.6 [1.2-2.0]). In conclusion, this study showed an increased all-cause mortality in persons with chronic HBV infection in comparison with age- and sex-matched persons without chronic HBV infection which remained after adjustment for several confounding factors. Excess mortality was mainly associated with liver disease, but also external factors, endocrine disease, genitourinary disease and neoplasms (excluding hepatocellular carcinoma).
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Carcinoma Hepatocelular , Hepatitis B Crónica , Neoplasias Hepáticas , Adolescente , Adulto , Causas de Muerte , Dinamarca/epidemiología , Virus de la Hepatitis B , Hepatitis B Crónica/complicaciones , Hepatitis B Crónica/epidemiología , Humanos , Neoplasias Hepáticas/etiología , Sistema de RegistrosRESUMEN
Objective: To evaluate implementation of national guideline recommendations on treatment initiation for chronic hepatitis B (CHB) in Denmark.Methods: Using DANHEP, a nationwide cohort of chronic hepatitis B and C patients attending specialized hospital care in Denmark, we performed a descriptive cohort study from January 2002 through December 2017. We identified patients with CHB in 3 of 5 Danish regions, with at least two hospital/outpatient clinic visits during the study period.Results: We identified 990 CHB patients who remained untreated throughout the study period, and 265 who initiated treatment. At their last visit 952/990 (96%, 95% CI 95-97) untreated patients did not meet current national criteria for treatment initiation while 198/265 (75%, 95% CI 69-80) who initiated treatment met the national criteria. Overall, 198/236 (84%, 95% CI 79-88) who met national treatment criteria, initiated treatment.Conclusion: The majority of CHB patients received care in line with national guideline recommendations for treatment initiation. We found that only few patients eligible for treatment remained untreated. However, a fourth of patients who received treatment were not eligible according to national guidelines.
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Antivirales/uso terapéutico , Adhesión a Directriz , Hepatitis B Crónica/tratamiento farmacológico , Adulto , Anciano , Estudios de Cohortes , ADN Viral/sangre , Dinamarca , Femenino , Virus de la Hepatitis B/efectos de los fármacos , Virus de la Hepatitis B/genética , Humanos , Masculino , Persona de Mediana Edad , Guías de Práctica Clínica como Asunto , Adulto JovenRESUMEN
Hepatitis E virus infection during pregnancy can have severe consequences for mother and child, such as vertical transmission, fulminant hepatic failure, even foetal or maternal mortality. The aim of this systematic review is to describe maternal, foetal and neonatal case-fatality rates as well as the prevalence of adverse outcomes in relation to hepatitis E virus infection during pregnancy. A systematic literature search was performed in Pubmed, Embase, Cochrane and CINAHL. Search terms included Pregnant, Women, Maternal, Infant, Foetal, Neonatal and Hepatitis E virus. Data were extracted using predefined data collection forms. All studies were quality assessed, either by the Newcastle-Ottawa Scale or by an adapted assessment scale for cross-sectional studies. We found 23 eligible studies, all observational, which were included in this systematic review with a total of 1338 cases. The median maternal, foetal and neonatal case-fatality rates were 26% (IQR 17%-41%), 33% (IQR 19%-37%) and 8% (IQR 3%-20%), respectively. Adverse outcomes such as fulminant hepatic failure, preterm labour, postpartum haemorrhage, low birth weight and vertical transmission were reported. The two studies that reported the highest prevalence of fulminant hepatic failure also reported the highest case-fatality rates. The median prevalence of fulminant hepatic failure was 45.3%. This systematic review found a high case-fatality rate among pregnant women infected with hepatitis E virus and a high rate of adverse outcomes among these women and their children. The results from this review mainly apply to hospital settings and symptomatic pregnant women from endemic countries.
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Hepatitis E/epidemiología , Complicaciones Infecciosas del Embarazo/epidemiología , Estudios Transversales , Femenino , Hepatitis E/mortalidad , Humanos , Lactante , Mortalidad Infantil , Mortalidad Materna , Evaluación del Resultado de la Atención al Paciente , Embarazo , Complicaciones Infecciosas del Embarazo/mortalidad , Vigilancia en Salud Pública , Sesgo de PublicaciónRESUMEN
OBJECTIVES: We describe factors associated with and barriers to initiation of Direct Acting Antiviral (DAA) treatment in patients with chronic hepatitis C, who fulfill national fibrosis treatment guidelines in Denmark. MATERIALS AND METHODS: In this nationwide cohort study, we included patients with chronic hepatitis C from The Danish Database for Hepatitis B and C (DANHEP) who fulfilled fibrosis treatment criteria. Factors associated with treatment initiation and treatment failure were determined by logistic regression analyses. Medical records were reviewed from patients who fulfilled fibrosis treatment criteria, but did not initiate DAA treatment to determine the cause. RESULTS: In 344 (49%) of 700 patients, who fulfilled treatment criteria, factors associated with DAA treatment initiation were transmission by other routes than injecting drug use odds ratio (OR) 2.13 (CI: 1.38-3.28), previous treatment failure OR 2.58 (CI: 1.84-3.61) and ALT above upper limit of normal OR 1.60 (CI: 1.18-2.17). The most frequent reasons for not starting treatment among 356 (51%) patients were non-adherence to medical appointments (n = 107/30%) and ongoing substance use (n = 61/17%). Treatment failure with viral relapse occurred in 19 (5.5%) patients, who were more likely to have failed previous treatment OR 4.53 (CI: 1.59-12.91). CONCLUSIONS: In this nationwide cohort study, we found non-adherence to medical appointments and active substance use to be major obstacles for DAA treatment initiation. Our findings highlight the need for interventions that can overcome these barriers and increase the number of patients who can initiate and benefit from curative DAA treatment.
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Antivirales/uso terapéutico , Hepatitis C Crónica/tratamiento farmacológico , Hepatitis C Crónica/epidemiología , Cooperación del Paciente , Adulto , Estudios de Cohortes , Dinamarca/epidemiología , Esquema de Medicación , Femenino , Hepacivirus/genética , Hepatitis C Crónica/complicaciones , Humanos , Cirrosis Hepática/epidemiología , Modelos Logísticos , Masculino , Persona de Mediana Edad , Guías de Práctica Clínica como Asunto , Factores de Riesgo , Respuesta Virológica Sostenida , Insuficiencia del TratamientoRESUMEN
BACKGROUND: Knowledge about mortality rates (MRs) in patients with chronic hepatitis C (CHC) with cirrhosis is limited. This study aimed to estimate all-cause MRs among patients with CHC with or without cirrhosis in Denmark compared with the general population. METHODS: Patients registered in the Danish Database for Hepatitis B and C with CHC and a liver fibrosis assessment were eligible for inclusion. Liver fibrosis was assessed by means of liver biopsy, transient elastography, and clinical cirrhosis. Up to 20 sex- and age-matched individuals per patient were identified in the general population. Data were extracted from nationwide registries. RESULTS: A total of 3410 patients with CHC (1014 with cirrhosis), and 67 315 matched individuals were included. Adjusted MR ratios (MRRs) between patients with or without cirrhosis and their comparison cohorts were 5.64 (95% confidence interval [CI], 4.76-6.67) and 1.94 (1.55-2.42), respectively. Cirrhosis among patients was associated with an MRR of 4.03 (95% CI, 3.43-4.72). A cure for CHC was associated with an MRR of 0.64 (95% CI, 0.40-1.01) among cirrhotic patients and 2.33 (1.47-3.67) compared with the general population. CONCLUSIONS: MRs were high among patients with CHC with or without cirrhosis compared with the general population. Curing CHC was associated with a reduction in MR among cirrhotic patients, but the MR remained higher than the general population.
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Hepatitis C Crónica/complicaciones , Hepatitis C Crónica/mortalidad , Cirrosis Hepática/mortalidad , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Estudios de Casos y Controles , Estudios de Cohortes , Dinamarca/epidemiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Adulto JovenRESUMEN
OBJECTIVE: In Denmark, pregnant women have been screened for hepatitis B virus (HBV) since 2005, and children born to HBV-infected mothers offered hepatitis B immunoglobulin at birth, vaccination against HBV at birth and after 1, 2 and 12 months. The purpose of this study was to determine the risk of vertical HBV transmission in children born to mothers with chronic HBV infection, to investigate the antibody response in the children and to investigate possible maternal predictive risk factors for HBV transmission. MATERIALS AND METHODS: Through the Danish Database for Hepatitis B and C, we identified 589 HBV-infected women who had given birth to 686 children, of whom 370 children were born to 322 women referred to hospital. 132 (36%) children, born to 109 mothers, were included in the study; 128 children had blood samples tested for HBsAg, anti-HBc (total), anti-HBs and HBV-DNA and four children had saliva samples tested for anti-HBc. RESULTS: We found vertical HBV transmission in Denmark to be 2.3% [95% CI: 0.5, 6.5], a high proportion of HBsAg-negative children with low levels of anti-HBs (18.4%) and a high proportion (15.2%) with resolved HBV infection. No maternal risk factor was statistically significantly associated with HBV vertical transmission. CONCLUSION: In a HBV low prevalence setting as Denmark, despite a national vaccination program, vertical HBV transmission occurred in 2.3% of children born to HBV-infected mothers. In addition, a high proportion of the children had insufficient anti-HBs levels and a high proportion had serological signs of resolved HBV infection.
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Hepatitis B Crónica/transmisión , Transmisión Vertical de Enfermedad Infecciosa/estadística & datos numéricos , Vacunación/estadística & datos numéricos , Adolescente , Adulto , Niño , Preescolar , ADN Viral/sangre , Bases de Datos Factuales , Dinamarca , Femenino , Anticuerpos contra la Hepatitis B/sangre , Antígenos de la Hepatitis B/sangre , Virus de la Hepatitis B , Hepatitis B Crónica/epidemiología , Humanos , Lactante , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Modelos Logísticos , Masculino , Tamizaje Masivo/métodos , Embarazo , Factores de Riesgo , Adulto JovenAsunto(s)
Hepatitis C Crónica , Respuesta Virológica Sostenida , Antivirales , Humanos , Cirrosis HepáticaRESUMEN
Purpose: We aimed to determine incidence of hepatocellular carcinoma (HCC) and decompensated liver cirrhosis in persons with chronic hepatitis B virus (HBV) infection in Denmark stratified by disease phase, liver cirrhosis, and treatment status at baseline. Additionally, we aimed to assess the prognostic value of the PAGE-B HCC risk score in a mainly non-cirrhotic population. Patients and Methods: In this register-based cohort study, we included all individuals over the age of 18, with chronic HBV infection first registered between 2002 and 2016 in at least one of three nationwide registers. The study population was followed until HCC, decompensated liver cirrhosis, death, emigration, or December 31, 2017, which ever came first. Results: Among 6016 individuals included in the study, 10 individuals with and 23 without baseline liver cirrhosis developed HCC during a median follow up of 7.3 years (range 0.0-15.5). This corresponded to five-year cumulative incidences of 7.1% (95% confidence interval (CI) 2.0-12.3) and 0.2% (95% CI 0.1-0.4) in persons with and without baseline liver cirrhosis. The five-year cumulative incidence of decompensated liver cirrhosis was 0.7% (95% CI 0.5-1.0). Among 2038 evaluated for liver events stratified by disease phase, incidence of HCC was low in all who were non-cirrhotic and untreated for HBV at baseline. PAGE-B score was evaluated in 1529 persons. The 5-year cumulative incidence of HCC was 0, 0.8 (95% CI 0.5-1.8), and 8.7 (95% CI 1.0-16.4) in persons scoring <10, 10-17 and >17, respectively (c-statistic 0.91 (95% CI 0.84-0.98)). Conclusion: We found low incidence of HCC and decompensated liver cirrhosis in persons with chronic HBV infection in Denmark. Moreover, the PAGE-B score showed good accuracy for five-year risk of developing HCC in the population with chronic HBV infection in Denmark.
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OBJECTIVES: The aim of this study was to investigate whether the seroprevalence of IgG antibodies against seven viruses (cytomegalovirus, herpes simplex virus 1&2, measles morbillivirus, parvovirus B19, rubella, and varicella-zoster virus), which can potentially compromise maternal and fetal wellbeing, differs based on country of origin among women with chronic hepatitis B (CHB). METHOD: This study was a single-center, hospital-based cross-sectional study. The study included women with CHB 15-45 years of age, included in the Danish Database for Hepatitis B and C. Seroprevalence estimates were calculated with a 95% confidence interval and were compared between age groups, regions of origin, and to the general population. RESULTS: 177 women were included in the study. Overall, the seroprevalences of antibodies were similar among women with CHB with origin outside Denmark and compared to the general population in Denmark, but there was a notable difference in the seroprevalence of antibodies against herpes simplex 2 between women from Africa (37.1% CI 95% 22.0;55.1) and women from the Middle East (2.5% CI 95% 0.1;14.7). CONCLUSION: Women with CHB whose origin is outside Denmark do not appear to differ, based on origin, or be at greater risk of acquiring these viruses during pregnancy than their Danish counterparts.
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Anticuerpos Antivirales/sangre , Hepatitis B Crónica/sangre , Hepatitis B/inmunología , Herpesvirus Humano 3/inmunología , Virus del Sarampión/inmunología , Parvovirus B19 Humano/inmunología , Virus de la Rubéola/inmunología , Simplexvirus/inmunología , Adolescente , Adulto , Estudios Transversales , Citomegalovirus/inmunología , Dinamarca/epidemiología , Femenino , Hepatitis B Crónica/epidemiología , Hepatitis B Crónica/inmunología , Hepatitis B Crónica/virología , Humanos , Inmunoglobulina G/sangre , Persona de Mediana Edad , Embarazo , Prevalencia , Estudios Seroepidemiológicos , Adulto JovenRESUMEN
BACKGROUND: Early identification of patients with chronic viral hepatitis coinfected with human immunodeficiency virus (HIV) is essential for optimal care. The objectives of this study were to estimate the prevalence of HIV coinfection among patients newly diagnosed with chronic viral hepatitis, HIV testing prevalence, and identify factors associated with coinfection. METHODS: Patients with chronic viral hepatitis newly enrolled in The Danish Database for Hepatitis B and C between 2002 and 2015 were identified. The HIV coinfection prevalence was calculated, and risk factors associated with HIV coinfection were estimated by logistic regression. RESULTS: In total, 8490 patients were included: 3091 had chronic hepatitis B (CHB), 5305 had chronic hepatitis C (CHC), and 94 had CHB and CHC. The prevalence of HIV coinfection was 4.4% (95% confidence interval [CI], 4.0-4.9) and was higher among CHC and CHB-CHC patients than CHB patients with a prevalence of 5.3% (95% CI, 4.7-5.9), 6.4% (95% CI, 2.4-13.4), and 2.9 (95% CI, 2.3-3.5), respectively (P < .0001). The HIV testing prevalence increased from 65% to 88% between 2002 and 2014 concurrently with a decrease in the HIV coinfection prevalence from 7.8% (95% CI, 5.5-10.7) to 1.6% (95% CI, 0.7-3.2). Age 35-50 years, male sex, and sexual route of viral hepatitis transmission were associated with HIV coinfection with odds ratios of 4.42 (95% CI, 1.40-13.94), 2.21 (95% CI, 1.74-2.81), and 8.81 (95% CI, 6.30-12.33), respectively. CONCLUSIONS: The prevalence of HIV coinfection among patients with newly diagnosed chronic viral hepatitis decreased concurrently with an increase in HIV testing prevalence.
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Patients with chronic hepatitis C may have advanced fibrosis at first evaluation. Using the European Association for the Study of the Liver (EASL) definition (FibroScan® >9.5 kPa) for "late presenter for care" (LP), we found that 32% (169 of 527) of patients were LP. Being a LP was associated with increasing age and a history of alcohol overuse.
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BACKGROUND: Chronic hepatitis C (CHC) causes liver cirrhosis in 5%-20% of patients, leading to increased morbidity and mortality. This study aimed to estimate liver-related morbidity and mortality among patients with CHC and cirrhosis in Denmark with and without antiviral treatment and sustained virologic response (SVR). Furthermore we aimed to estimate the rate of hepatocellular carcinoma (HCC) and decompensation associated with certain prognostic factors. MATERIALS AND METHODS: Patients with CHC and cirrhosis registered in the Danish Database for Hepatitis B and C were eligible. Cirrhosis was based on liver biopsy, transient elastography, and clinical cirrhosis. Data were extracted from nationwide registries. The study period was from 2002 until 2013. RESULTS: Of 1,038 patients included, 716 (69%) were male and the median age was 52 years. Median follow-up was 3.8 years, 360 patients died, and 233 of 519 treated patients achieved SVR. Alcohol overuse and hepatitis C virus genotype 3 were associated with an increased incidence rate (IR) of HCC, whereas diabetes and alcohol overuse were associated with increased IRs of decompensation. Achieving SVR reduced all-cause mortality (adjusted mortality rate ratio 0.68 [95% CI 0.43-1.09]) and liver-related mortality (mortality rate ratio 0.6 [95% CI 0.36-1]), as well as liver-related morbidity with adjusted IR ratios of 0.37 (95% CI 0.22-0.62) for HCC and 0.31 (95% CI 0.17-0.57) for decompensation. The IRs of HCC and decompensation remained elevated in patients with alcohol overuse after SVR. CONCLUSION: Alcohol overuse, hepatitis C genotype 3, and diabetes were associated with liver-related morbidity in patients with CHC and cirrhosis. SVR markedly reduced liver-related morbidity and mortality; however, special attention to patients with alcohol overuse should continue after SVR.
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BACKGROUND AND AIMS: Chronic hepatitis C virus (HCV) genotype 3 infection with advanced liver disease has emerged as the most challenging to treat. We retrospectively assessed the treatment outcome of sofosbuvir (SOF) based regimes for treatment of HCV genotype 3 infections in a real life setting in Scandinavia. METHODS: Consecutive patients with chronic HCV genotype 3 infection were enrolled at 16 treatment centers in Denmark, Sweden, Norway and Finland. Patients who had received a SOF containing regimen were included. The fibrosis stage was evaluated by liver biopsy or transient liver elastography. The following treatments were given according availability and local guidelines: 1) SOF + ribavirin (RBV) for 24 weeks, 2) SOF + daclatasvir (DCV) +/-RBV for 12-24 weeks, 3) SOF + pegylated interferon alpha (peg-IFN-α) + RBV for 12 weeks or 4) SOF/ledipasvir (LDV) + RBV for 12-16 weeks. The primary endpoint was sustained virological response (SVR) assessed at week 12 (SVR12) after end of treatment. RESULTS: We included 316 patients with a mean age of 55 years (range 24-79), 70% men, 49% treatment experienced, 58% with compensated cirrhosis and 12% with decompensated cirrhosis.In the modified intention to treat (mITT) population SVR12 was achieved in 284/311 (91%) patients. Among 26 treatment failures, five had non-response, 3 breakthrough and 18 relapse. Five patients were not included in the mITT population. Three patients died from reasons unrelated to treatment and two were lost to follow-up. The SVR12 rate was similar for all treatment regimens, but lower in men (p = 0.042), and in patients with decompensated liver disease (p = 0.004). CONCLUSION: We found that sofosbuvir based treatment in a real-life setting could offer SVR rates exceeding 90% in patients with HCV genotype 3 infection and advanced liver disease.
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Antivirales/administración & dosificación , Hepacivirus/genética , Hepatitis C Crónica/tratamiento farmacológico , Sofosbuvir/administración & dosificación , Adulto , Anciano , Antivirales/uso terapéutico , Carbamatos , Quimioterapia Combinada , Femenino , Genotipo , Hepacivirus/efectos de los fármacos , Hepatitis C Crónica/virología , Humanos , Imidazoles/administración & dosificación , Imidazoles/uso terapéutico , Interferón-alfa/administración & dosificación , Interferón-alfa/uso terapéutico , Masculino , Persona de Mediana Edad , Pirrolidinas , Estudios Retrospectivos , Ribavirina/administración & dosificación , Ribavirina/uso terapéutico , Países Escandinavos y Nórdicos , Sofosbuvir/uso terapéutico , Respuesta Virológica Sostenida , Resultado del Tratamiento , Valina/análogos & derivadosRESUMEN
A high degree of adherence to antiretroviral therapy (ART) in patients infected with human immunodeficiency virus (HIV) is necessary for long term treatment effects. This study explores the role of timing of ART intake, the information patients received from health workers, local adherence patterns, barriers to and facilitators of ART among 28 HIV-positive adults at the Senkatana HIV Clinic in Maseru, Lesotho. This qualitative, semi-structured interview study was carried out during February and March of 2011 and responses were analyzed inspired by the Grounded Theory method. Results were then compared and discussed between the authors and the main themes that emerged were categorized. The majority of the respondents reported having missed one or more doses of medicine in the past and it was a widespread belief among patients that they were required to skip the dose of ART if they were "late". The main barriers to adherence were interruptions of daily routines or leaving the house without sufficient medicine. The use of mobile phone alarms, phone clocks and support from family and friends were major facilitators of adherence. None of the patients reported to have been counseled on family support or the use of mobile phones as helpful methods in maintaining or improving adherence to ART. Being on-time with ART was emphasized during counseling by health workers. In conclusion, patients should be advised to take the dose as soon as they remember instead of skipping the dose completely when they are late. Mobile phones and family support could be subjects to focus on during future counseling particularly with the growing numbers of mobile phones in Africa and the current focus on telemedicine.
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Instituciones de Atención Ambulatoria , Antirretrovirales/uso terapéutico , Infecciones por VIH/tratamiento farmacológico , Conocimientos, Actitudes y Práctica en Salud , Cumplimiento de la Medicación , Modelos Psicológicos , Educación del Paciente como Asunto , Actividades Cotidianas , Adulto , Antirretrovirales/administración & dosificación , Teléfono Celular , Esquema de Medicación , Quimioterapia Combinada , Femenino , Teoría Fundamentada , Infecciones por VIH/etnología , Conocimientos, Actitudes y Práctica en Salud/etnología , Humanos , Lesotho , Masculino , Cumplimiento de la Medicación/etnología , Persona de Mediana Edad , Autoinforme , Apoyo Social , Adulto JovenRESUMEN
Chronic hepatitis C (CHC) frequently leads to cirrhosis with an increased risk of hepatocellular carcinomas (HCC). CHC therapy is currently changing for the better whereas prognosis for HCC remains dismal if not detected early and thus regular screening in cirrhotic CHC patients for HCC is recommended. CHC is known to be underdiagnosed in Denmark where it is up to the involved physician to screen for risk factors for CHC and increase the patient's chance of a cure for CHC with therapy.
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Carcinoma Hepatocelular/virología , Hepatitis C Crónica/complicaciones , Cirrosis Hepática/virología , Neoplasias Hepáticas/virología , Algoritmos , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/terapia , Hepacivirus , Humanos , Cirrosis Hepática/complicaciones , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/terapia , Tamizaje Masivo , Factores de RiesgoRESUMEN
Chronic hepatitis C (CHC) affects around 16,000 individuals in Denmark of whom about 50% are diagnosed. In the presence of CHC and cirrhosis the annual risk of hepatocellular carcinoma (HCC) is 1-5%. We report on two patients who presented with disseminated HCC at the time of CHC diagnosis. At the time of diagnosis only non-curative treatment was available. An earlier diagnosis of CHC could potentially have led to a cure and prevention of HCC.
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Carcinoma Hepatocelular/sangre , Neoplasias Hepáticas/sangre , Alanina Transaminasa/análisis , Carcinoma Hepatocelular/diagnóstico por imagen , Carcinoma Hepatocelular/tratamiento farmacológico , Carcinoma Hepatocelular/virología , Hepatitis C Crónica/sangre , Hepatitis C Crónica/complicaciones , Humanos , Neoplasias Hepáticas/diagnóstico por imagen , Neoplasias Hepáticas/tratamiento farmacológico , Neoplasias Hepáticas/virología , Masculino , Persona de Mediana Edad , Radiografía , alfa-Fetoproteínas/análisisRESUMEN
Cancer is dependent on so-called cancer stem cells that initiate and maintain the cancer cell population. Stem cells are described in normal tissue as low-frequent, self-renewing cells with a multi- or pluripotent differentiation potential. The true characteristics of the cancer-initiating cells are still not entirely known, but it is obvious that identifying these cells will enable us to better understand the biology of cancer. In this article, we focus on normal haematopoietic stem cells and cancer stem cells in leukaemia and multiple myeloma.