Hepatitis: Spain

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A digest of articles written 1999 and later, on the topic "Hepatitis," originating from Planet Earth —» Spain.  Display:  All Citations ·  All Abstracts
1 Guideline [Vaccination schedule of the Spanish association of pediatrics: recommendations 2009] free! 2009

Bernaola Iturbe E, Giménez Sánchez F, Baca Cots M, De Juan Martín F, Diez Domingo J, Garcés Sánchez M, Gómez-Campderá A, Martinón-Torres F, Picazo JJ, Pineda Solás V, Anonymous00070. · Comité Asesor de Vacunas de la Asociación Española de Pediatría, Madrid, España. · An Pediatr (Barc). · Pubmed #19174124 links to  free full text

Abstract: Based on the available evidence, we, the Vaccine Advisory Committee (CAV) of the Spanish Association of Pediatrics (Asociación Española de Pediatría, AEP), provide information about and comments on vaccine-related innovation during 2008. Modifications to the Vaccine Schedule for 2009 are also discussed. The importance of the recommendation of administration of a varicella booster at start of school (3-4 years of age) is highlighted according to the technical specifications of one of the vaccines. The importance of making the heptavalent pneumococcal conjugate vaccine universally available is reiterated in accordance with the unquestionable results of scientific tests, WHO recommendations, the posture adopted by the majority of neighboring European countries, and the decision taken in 2006 by the autonomous community of Madrid (Spain). New scientific reasons are provided, corroborating the recommendation made by this committee in 2008, for the implementation by Spanish pediatricians of the vaccine against rotavirus and human papilloma virus. With regard to the latter, vaccination should be from 11 to 16 years of age, and then extended, in accordance with the technical specifications of the available vaccine preparations, to 26 years of age. As part of the recommendations, we insist that children in risk groups should be given flu vaccine and hepatitis A vaccine. The committee considers that these two vaccines must also be given, when pediatricians consider it appropriate, to children other than those in risk groups. This recommendation can be regarded as the first step towards a future recommendation of universal vaccination. Finally, this year we include an appendix with recommendations and vaccination strategies to be followed in children who have not previously received vaccines or who have not been completely immunized.

2 Guideline [Vaccination scheme in advanced chronic kidney disease] 2008

Barril G, Teruel JL. · Hospital de La Princesa, Madrid. · Nefrologia. · Pubmed #19018745 No free full text.

Abstract: 1. VACCINATION AGAINST HEPATITIS B a) All patients with chronic advanced renal disease and negative serology for HBsAg and antiHBs are to be vaccinated against hepatitis B (Evidence level: B). b) For classic vaccines (Engerix B and HBVAxpro) the adult vaccine dose is 40 mcg (20 mcg in the paediatric population). There are two dose regimens based on the medicinal product used: 0, 1 and 6 months with HBVAxpro and 0, 1, 2 and 6 months with Engerix B. With the new vaccine Fendrix, the dose is 20 mcg and the schedule 0, 1, 2 and 6 months (Evidence level: C). c) The antiHBs titre is to be measured 1-2 months after administration of the last dose. In patients whose antibody titres are below 10 mIU/mL, a booster may be administered, checking the response or administering a second full vaccination (Evidence level: B). d) In responders, antibody levels are to be tested at least once a year. If the antiHBs titre is below 10 mIU/mL, a booster is to be administered (Evidence level: C). 2. VACCINATION AGAINST INFLUENZA a) All patients with chronic advanced renal disease are to be vaccinated every year against influenza (Evidence level: B). b) The vaccination dose and regimen are the same as recommended for the general population (Evidence level: C) 3. VACCINATION AGAINST PNEUMOCOCCUS a) Vaccination against pneumococcus is recommended in patients with chronic renal disease associated with nephrotic syndrome or who may be future candidates for renal transplant (Evidence level: B). b) There is no evidence of the clinical value of the pneumococcal vaccine in adult patients with chronic renal failure, not transplanted. However, some regions are recommending routine vaccination in the population aged >or= 60 years, the age of a high percentage of our patients. c) To maintain immunisation, revaccination is required every 3- 5 years. 4. OTHER VACCINES a) Vaccination against hepatitis A is recommended in patients with renal failure associated with chronic liver disease or who are candidates for renal transplant (Evidence level: C). b) The recommendations for vaccination against tetanus and diphtheria are the same as for the general population (Evidence level: C). c) Chickenpox vaccine is indicated in children with chronic renal disease, particularly if they are candidates for transplant (Evidence level: B). Although there is no evidence of the value of this vaccine in adults, it is advisable to perform it in those who may be candidates for renal transplant with no protecting antibodies. d) There is no evidence of the clinical value of the vaccine against Staphylococcus aureus.

3 Guideline [Immunization schedule of the Spanish Association of Pediatrics: recommendations 2008] free! 2008

Bernaola Iturbe E, Giménez Sánchez F, Baca Cots M, de Juan Martín F, Díez Domingo J, Garcés Sánchez M, Gómez-Campderá A, Martinón Torres F, Picazo JJ, Pineda Solás V, Anonymous00469. · Comité Asesor de Vacunas de la Asociación Española de Pediatría, España. · An Pediatr (Barc). · Pubmed #18194631 links to  free full text

Abstract: The Vaccine Advisory Committee of the Spanish Association of Pediatrics provides information on the new developments in vaccines that have taken place in 2007, based on the available evidence, and discusses these developments. Certain modifications to the Immunization Schedule for 2008 are recommended. A second varicella vaccine booster dose, administered together with the booster dose of the measles-mumps-rubella (MMR) vaccine when children start school (3-4 years), is recommended to avoid vaccine failures against the varicella-zoster virus. Based on current scientific evidence, the importance of universal heptavalent conjugate pneumococcal vaccination, as carried out in most similar European countries and in the autonomous community of Madrid in Spain, is stressed. Human papilloma virus vaccine is included in the Immunization Schedule for girls from 11 years old, and initially, at least up to the age of 16 years. Vaccination against rotavirus in children starting at 6 weeks and completing the series before 6 months is recommended. Other recommendations included in this year's Immunization Schedule are vaccination against influenza and hepatitis A virus in risk groups and at the pediatrician's discretion, as a first step toward the future recommendation of universal immunization.

4 Guideline [Expert recommendations for the diagnosis and treatment of chronic hepatitis C infection in the prison setting] 2006

Saiz de la Hoya-Zamácola P, Marco-Mouriño A, Clemente-Ricote G, Portilla-Sogorb J, Boix-Martínez V, Núñez-Martínez O, Reus-Bañuls S, Teixidó i Pérez N, Anonymous00274. · Servicios Médicos. Centro Penitenciario Alicante I. España. · Gastroenterol Hepatol. · Pubmed #17129550 No free full text.

Abstract: The prevalence of HCV infection in Spanish prisons is very high (38.5%). The characteristics of the infected patients, particularly the high rate of HIV coinfection, makes it very likely that the morbidity and mortality produced by serious liver disease secondary to this infection will increase considerably in the coming years. A group of Spanish experts with experience in patients who are inmates has been invited to establish a series of recommendations for the diagnosis and treatment of chronic hepatitis C infection in Spanish prisons.

5 Guideline [Guidelines on hemodialysis-associated viral infections] 2004

Barril G, González Parra E, Alcázar R, Arenas D, Campistol JM, Caramelo C, Carrasco M, Carreño V, Espinosa M, García Valdecasas J, Górriz JL, López MD, Martín L, Ruiz P, Terruel JL, Anonymous00170. · Nefrólogo Hosp. Universitario de La Princesa, Madrid. · Nefrologia. · Pubmed #15085792 No free full text.

Abstract: The viric infections influence morbi-mortality in Chronic kidney Disease patients in hemodialysis therapy and can affect to the Staff of the Units. The guides considered the most relevant virus at the present moment: C Virus, B Virus and HIV. To prevent horizontal nosocomial transmission is necessary the observance always the universal precautions in the HD units, although sometimes can appeared seroconversions and epidemic bud when exist a break of these. Is analyzed different situations with special focus in units for acute patients. The following steps under the suspicious of the epidemic bud appeared in one of the annexes together with legislation according to this case. Respect to the staff in every one of the virus is shown prevention patterns, serologic markers to perform when an accident with infected blood occur, also is considered when treatment is indicated. The guides considered too the conditions necessary for include these patients on waiting list for kidney transplantation.

6 Guideline [Hepatitis C. Chronic hepatitis. Outcome and treatment] free! 2003

Hierro Llanillo L, Anonymous00303. · Servicio de Hepatología. Hospital Infantil La Paz. Madrid. España. · An Pediatr (Barc). · Pubmed #12724085 links to  free full text

This publication has no abstract.

7 Guideline [Hepatitis C. The virus, diagnostic methods, epidemiology, self-limiting and chronic disease] free! 2003

de la Vega Bueno A, Anonymous00302. · Servicio de Hepatología. Hospital Infantil La Paz. Madrid. España. · An Pediatr (Barc). · Pubmed #12724084 links to  free full text

This publication has no abstract.

8 Guideline [Hepatitis B. Chronic hepatitis. Outcome and treatment] free! 2003

Muñoz Bartolo G, Anonymous00301. · Servicio de Hepatología. Hospital Infantil La Paz. Madrid. España. · An Pediatr (Barc). · Pubmed #12724083 links to  free full text

This publication has no abstract.

9 Guideline [Hepatitis B. The virus, diagnostic techniques, epidemiology, disease and its possible outcomes] free! 2003

Codoñer Franch P. · Profesora Titular de Pediatría. Hospital Universitario Dr. Peset. Universidad de Valencia. España. · An Pediatr (Barc). · Pubmed #12724082 links to  free full text

This publication has no abstract.

10 Guideline [Recommendations for non-occupational postexposure HIV prophylaxis. Spanish Working Group on Non-Occupational Postexposure HIV Prophylaxis of the Catalonian Center for Epidemiological Studies on AIDS and the AIDS Study Group] free! 2002

Almeda J, Casabona J, Allepuz A, García-Alcaide F, del Romero J, Tural C, Colm J, Bolao F, Campins M, Domínguez A, Force L, Giménez A, Guerra-Romero L, Anonymous00243. · Centre de Estudis Espidemiològics sobre la Sida a Catalunya. Hospital Universitari Germans Trias i Pujol. Badalona. España. · Enferm Infecc Microbiol Clin. · Pubmed #12372236 links to  free full text

Abstract: Evidence is lacking on the possible efficacy and effectiveness of non-occupational postexposure prophylaxis (PEP). However, because of its biological plausibility, the use of antiretroviral (ARV) drugs to prevent the development of infection in certain cases of accidental or sporadic exposure has begun to be considered as common clinical practice. Previous studies performed in Spain have demonstrated both the demand and the prescription of ARV as PEP and especially the diversity and inconsistency in the criteria used. In this context, in April of 2000 the Centre for Epidemiological Studies on AIDS of Catalonia (CEESCAT) (Department of Health and Social Security of the Autonomous Government of Catalonia), in collaboration with the National AIDS Plan and the AIDS Study Group (GESIDA), promoted the creation of a working group for the drafting of recommendations for PEP against HIV outside the occupational health context. The recommendations have been made bearing in mind the exceptional character of the exposure, the time elapsed since exposure, as well as evaluation of the risk of infection according to the type of exposure and the information available on the source of infection. In addition, the recommendations include the immediate measures necessary, as well as the preventive measures and clinical follow-up required both for HIV and for other infectious agents. All PEP regimens should be started within 72 hours of exposure and appropriate daily doses of two nucleoside reverse transcriptase inhibitors (NRTIs) and a protease inhibitor (PI), or two NRTIs and a non-nucleoside reverse transcriptase inhibitor (NNRTIs), should be administered for four weeks, bearing in mind the pharmacological and clinical situation of the source person. These recommendations should be updated periodically.

11 Guideline [Recommendations of the Spanish AIDS Study Group (GESIDA) and the National Aids Plan (PNS) for antiretroviral treatment in adult patients with human immunodeficiency virus infection in 2002] free! 2002

Rubio R, Berenguer J, Miró JM, Antela A, Iribarren JA, González J, Guerra L, Moreno S, Arrizabalaga J, Clotet B, Gatell JM, Laguna F, Martínez E, Parras F, Santamaría JM, Tuset M, Viciana P. · Hospital 12 Octubre, Madrid, Spain. · Enferm Infecc Microbiol Clin. · Pubmed #12084354 links to  free full text

Abstract: OBJECTIVE: To provide an update of recommendation on antiretroviral treatment (ART) in HIV-infected adults.Methods. These recommendations have been agreed by consensus by a committee of the spanish AIDS Study Group (GESIDA) and the National AIDS Plan. To do so, advances in the physiopathology of AIDS and the results on efficacy and safety in clinical trials, cohort and pharmacokinetics studies published in biomedical journals or presented at congresses in the last few years have been reviewed. Three levels of evidence have been defined according to the data source: randomized studies (level A), case-control or cohort studies (level B) and expert opinion (level C). Whether to recommend, consider, or not to recommend ART has been established for each situation. RESULTS: Currently, ART with combinations of at least three drugs constitutes the treatment of choice in chronic HIV infection. In patients with symptomatic HIV infection, initiation of ART is recommended. In asymptomatic patients initiation of ART should be based on the CD41/mL lymphocyte count and on the plasma viral load (PVL): a) in patients with CD41 lymphocytes < 200 cells/mL, initiation of ART is recommended; b) in patients with CD41 lymphocytes between 200 and 300 cells/mL, initiation of ART should, in most cases, be recommended; however, it could be delayed when the CD41 lymphocyte count remains close to 350 cells/mL and the PVL is low, and c) in patients with CD41 lymphocytes > 350 cells/mL, initiation of ART can be delayed. The aim of ART is to achieve an undetectable PVL. Adherence to ART plays a role in the durability of the antiviral response. Because of the development of cross-resistance, the therapeutic options in treatment failure are limited. In these cases, genotypic analysis is useful. Toxicity limits ART. The criteria for ART in acute infection, pregnancy and postexposure prophylaxis and in the management of coinfection with HIV and hepatitis C and B virus are controversial. CONCLUSIONS: The current approach to initiating ART is more conservative than in previous recommendations. In asymptomatic patients, the CD41 lymphocyte count is the most important reference factor for initiating ART. Because of the considerable number of drugs available, more sensitive monitoring methods (PVL) and the possibility of determining resistance, therapeutic strategies have become much more individualized.

12 Editorial [Genetic polymorphisms and liver diseases] 2003

Bataller R. · Institut de Malalties Digestives. IDIBAPS. Hospital Clínic. Barcelona. España. · Gastroenterol Hepatol. · Pubmed #12732105 No free full text.

This publication has no abstract.

13 Editorial [Antiviral treatment in liver cirrhosis due to hepatitis C virus] 2003

Martínez-Bauer E, Forns X. · Servicio de Hepatología. Institut de Malalties Digestives. Hospital Clínic. Barcelona. España. · Gastroenterol Hepatol. · Pubmed #12732104 No free full text.

This publication has no abstract.

14 Review Social network analysis. Review of general concepts and use in preventive veterinary medicine. 2009

Martínez-López B, Perez AM, Sánchez-Vizcaíno JM. · Animal Health Department, Complutense University of Madrid, Madrid, Spain. · Transbound Emerg Dis. · Pubmed #19341388 No free full text.

Abstract: Social network analysis (SNA) and graph theory have been used widely in sociology, psychology, anthropology, biology and medicine. Social network analysis and graph theory provide a conceptual framework to study contact patterns and to identify units of analysis that are frequently or intensely connected within the network. Social network analysis has been used in human epidemiology as a tool to explore the potential transmission of infectious agents such as HIV, tuberculosis, hepatitis B and syphilis. In preventive veterinary medicine, SNA is an approach that offers benefits for exploring the nature and extent of the contacts between animals or farms, which ultimately leads to a better understanding of the potential risk for disease spread in a susceptible population. Social network analysis, however, has been applied only recently in preventive veterinary medicine, therefore the characteristics of the technique and the potential benefits of its use remain unknown for an important section of the international veterinary medicine community. The objectives of this paper were to review the concepts and theoretical aspects underlying the use of SNA and graph theory, with particular emphasis on their application to the study of infectious diseases of animals. The paper includes a review of recent applications of SNA in preventive veterinary medicine and a discussion of the potential uses and limitations of this methodology for the study of animal diseases.

15 Review [Current role of tenofovir in clinical medicine] free! 2008

Ribera Pascuet E, Curran A. · Servicio de Enfermedades Infecciosas. Hospital Universitario Vall d'Hebron. Barcelona · Enferm Infecc Microbiol Clin. · Pubmed #19338072 links to  free full text

Abstract: Standard antiretroviral therapy (ART) consists of a combination of three active drugs. The selection of these drugs varies considerably according to the clinical scenario. The "gold standard" in patients initiating ART is tenofovir (TDF)/emtricitabine (FTC)/efavirenz. TDF/FTC is also considered a combination of choice when, for various reasons, ART is initiated with a boosted protease inhibitor. Abacavir and lamivudine (ABC/3TC) is also considered a combination of choice in most clinical practice guidelines. HLA-B*5701 determination minimizes the possibility of hypersensitivity of ABC and is a positive datum for the use of ABC/3TC. However, negative findings from the data collection on Adverse Events of Anti-HIV drugs (DAD) and ACTG5202 studies on this combination should be bourne in mind. TDF can also be a good choice for substituting another nucleoside analogue to avoid or reverse certain toxicities in patients with good virological control. Substituting thymidine analogues for TDF improves lipid profile and produces partial recuperation of subcutaneous fat. Because of the profile of resistance to TDF, this drug continues to be active in most patients with one, or even several, therapeutic failures. TDF plays and especially important role in patients coinfected with hepatotrophic viruses. In summary, TDF is a widely used drug in clinical practice due to its excellent combination of effectiveness, durability and tolerability, in addition to its ease of administration in a single daily dose, whether in its individual formation (Viread), or associated with FTC (Truvada), or with FTC and efavirenz (Atripla).

16 Review New drug targets for hepatitis C and other Flaviviridae viruses. 2009

Paula T, Pablo R, Eugenia V, Pablo B, Sabino P, José M, Antonio M, Dolores HM, Pablo L, Javier GS, Vincente S. · Department of Infectious Diseases, Hospital Carlos III, Madrid, Spain. · Infect Disord Drug Targets. · Pubmed #19275702 No free full text.

Abstract: The Flaviviridae family comprises the genus Flavivirus, Hepacivirus and Pestivirus. These viruses are responsible for considerable human and animal disease and mortality worldwide. Flaviviruses cause a range of acute febrile illnesses along with encephalitic or haemorrhagic diseases. Chronic hepatitis C virus (HCV) infection is the most important hepacivirus human disease and remains a global health threat with nearly 200 million carriers worldwide. Current treatment consists in the use of peginterferon alfa (pegIFN) plus ribavirin (RBV) for 24 to 72 weeks, depending on HCV genotype, baseline viral load and the achievement of rapid virological response during therapy. However, current hepatitis C therapy fails to eradicate HCV in nearly half of treated patients and is hampered by relatively serious adverse events. No effective antiviral therapy is currently available for the treatment of flaviviruses or pestiviruses. Following the relative success of antiretroviral therapy against HIV infection, rapid progresses have been made in the development of specifically targeted antiviral therapies against HCV (STAT-C) and other Flaviviridae agents. Drug discovery for HCV is currently particularly exciting, since inhibitors of the HCV serine protease and the RNA-dependent RNA polymerase have recently entered the late stages of clinical development.

17 Review Inflammation and liver cancer: new molecular links . 2009

Berasain C, Castillo J, Perugorria MJ, Latasa MU, Prieto J, Avila MA. · Division of Hepatology and Gene Therapy, CIMA-Universidad de Navarra, Pamplona, Spain. · Ann N Y Acad Sci. · Pubmed #19250206 No free full text.

Abstract: A connection between inflammation and cancer has been long suspected. Epidemiological studies have established that many tumors occur in association with chronic infectious diseases, and it is also known that persistent inflammation in the absence of infections increases the risk and accelerates the development of cancer. One clear example of inflammation-related cancer is hepatocellular carcinoma (HCC). HCC is a type tumor that slowly unfolds on a background of chronic inflammation mainly triggered by exposure to infectious agents (hepatotropic viruses) or to toxic compounds (ethanol). The molecular links that connect inflammation and cancer are not completely known, but evidences gathered over the past few years are beginning to define the precise mechanisms. In this article we review the most compelling evidences on the role of transcription factors such as NF-kappaB and STAT3, cytokines like IL-6 and IL-1alpha, ligands of the EGF receptor and other inflammatory mediators in cancer development, with special emphasis in HCC. The molecular dissection of the pathways connecting the inflammatory reaction and neoplasia will pave the way for better therapies to treat cancers.

18 Review Noninvasive diagnosis of liver fibrosis in patients with HIV infection and HCV/HBV co-infection. 2009

Moreno S, García-Samaniego J, Moreno A, Ortega E, Pineda JA, del Romero J, Tural C, von Wichmann MA, Berenguer J, Castro A, Espacio R. · Department of Infectious Diseases, Hospital Ramón y Cajal, Universidad de Alcalá, Madrid, Spain. · J Viral Hepat. · Pubmed #19215579 No free full text.

Abstract: The measurement of fibrosis stage critically affects the identification of the progression of liver disease, the establishment of a prognosis and therapeutic decision making. Liver biopsy has been the single, most useful method to determine the degree of liver fibrosis (LF), but with recognized limitations, mainly associated with its invasiveness. In recent years, alternative noninvasive methods have been developed, including imaging methods, such as transient elastometry, and assays based on serum biomarkers. This article reviews the available studies evaluating the value of various noninvasive methods for the assessment of LF in patients with HIV-infection and HBV/HCV co-infection, and makes recommendations on how to best use and combine them in clinical practice.

19 Review [Safety and tolerability of darunavir] free! 2008

Antela López A. · Unidad de VIH-Enfermedades Infecciosas. Servicio de Medicina Interna. Hospital Clínico Universitario de Santiago de Compostela. Santiago de Compostela. A Coruña. España. · Enferm Infecc Microbiol Clin. · Pubmed #19195457 links to  free full text

Abstract: Darunavir, previously known as TMC-114, is a new protease inhibitor (PI) with a high affinity for the HIV-1 protease and strong ability to inhibit its action, even in mutated forms. Consequently, this drug is considered to have great intrinsic potency and a high genetic barrier. At the time of writing, data on the tolerability and safety of darunavir come mainly from studies of late rescue therapy (POWER, DUET), which have included more than 1,600 patients. Recent data, relating to shorter time periods, are also available from studies in early treatment-experienced patients (TITAN) and in treatment-naïve patients (ARTEMIS), increasing experience to a further 600 patients. Lastly, more than 4,000 patients who have received darunavir through the Expanded Access Program have allowed the drug's generally good safety and tolerability profile to be defined. In the studies performed to date, darunavir has been well tolerated, with a better profile than that of the PIs used in control groups in terms of adverse effects such as diarrhea, gastrointestinal tolerability and lipid alterations. Moreover, to date, no unexpected severe adverse effects have been reported.

20 Review [Utility of molecular biology in the microbiological diagnosis of viral hepatitides] free! 2008

Echevarría JM, Avellón A. · Unidad de Hepatitis Víricas, Servicio de Microbiología Diagnóstica, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, España. · Enferm Infecc Microbiol Clin. · Pubmed #19195449 links to  free full text

Abstract: Viral hepatitides are satisfactorily diagnosed in the laboratory by immunoassays for either antigen or antibody detection in serum samples. However, the early detection of acute infections during the window period, investigation of occult infections, and issues related to the establishment and follow-up of antiviral therapy in chronic infections pose new challenges that only molecular methods can meet. In addition, full characterization of epidemic outbreaks and surveillance of the emergence of viral variants able to escape from vaccine protection are major public health objectives that can only be achieved through the use of these techniques. As a further attempt to improve the viral safety of blood transfusions, the incorporation of molecular biology techniques into the routine work of transfusion centers has generated new technical and scientific demands on microbiology laboratories, which must in turn incorporate these methods to respond to the challenge. After more than a decade, automatic methods for the detection, quantification, characterization and sequencing of the genomes of these viruses have become a reality for the clinical laboratory, reaffirming the essential role of the microbiologist in the hospital setting.

21 Review [Quality control in molecular microbiology] free! 2008

Orta Mira N, Guna Serrano MR, Gimeno Cardona C, Pérez JL. · Programa de Control de Calidad Externo. Sociedad Española de Enfermedades Infecciosas y Microbiología Clínica, Madrid, España. · Enferm Infecc Microbiol Clin. · Pubmed #19195441 links to  free full text

Abstract: The term quality assurance (QA) refers to the quality control activities related to analytical procedures performed in the clinical microbiology laboratory. QA should include both external and internal quality assessment. Application of quality control tools in molecular microbiology assays is crucial to ensure the accuracy of results and appropriate patient management. External quality control is used for laboratory intercomparisons, detection of random and systematic errors, evaluation of the suitability of some reagents or commercial diagnostic kits, and continuing education. The External Quality Control Program of the Spanish Society of Infectious Diseases and Clinical Microbiology includes quality control procedures for molecular microbiology, as well as specific programs for quantitative determination of the viral load of human immunodeficiency virus type 1 (HIV-1) and hepatitis C virus (HCV), two highly important molecular markers in clinical settings due to their prognostic value and utility as a treatment guide. Internal quality control allows random and systematic errors to be detected through the inclusion of quality control samples in the assays performed in the laboratory, equipment monitoring, and audit. Evaluation of all molecular microbiology assays before their inclusion in the daily routine work of the laboratory is of utmost importance.

22 Review [Role of tenofovir in HIV and hepatitis C virus coinfection] free! 2008

Tuma P, Vispo E, Barreiro P, Soriano V. · Servicio de Enfermedades Infecciosas, Hospital Carlos III, Madrid, España. · Enferm Infecc Microbiol Clin. · Pubmed #19195436 links to  free full text

Abstract: Chronic hepatitis C virus (HCV) infection is common in HIV-infected individuals, especially if the route of infection is intravenous (e.g. intravenous drug use or blood transfusion). Prognosis is poorer in patients with HCV and HIV coinfection than in those with HCV monoinfection, mainly due to the immunodepression caused by HIV infection and probably also to a direct effect of HIV on the liver. Moreover, although antiretroviral therapy can cause liver damage, there is little doubt about the net benefits obtained with triple therapy in coinfected individuals, since suppression of HIV replication and immune recovery help to halt liver damage. However, not all antiretroviral agents are equal and those with the lowest hepatotoxicity and best metabolic profile should be used in coinfected patients, since hepatic steatosis accelerates progression of hepatic fibrosis and insulin resistance hampers the success of treatment with interferon and ribavirin. Tenofovir is currently one of the safest nucleos(t)ide analogues, due to its low hepatotoxicity and its lack of negative interference on treatment of HCV infection.

23 Review A review of current anti-HCV treatment regimens and possible future strategies. 2009

Neukam K, Macías J, Mira JA, Pineda JA. · Hospital Universitario de Valme, Unidad Clínica de Enfermedades Infecciosas, 41014 Seville, Spain. · Expert Opin Pharmacother. · Pubmed #19191679 No free full text.

Abstract: BACKGROUND: Hepatitis C virus (HCV) infection remains a serious health problem worldwide. The current standard treatment of HCV infection is pegylated interferon-alpha plus ribavirin, but this is clearly not sufficiently effective and tolerable. OBJECTIVE: To review current HCV treatment strategies and future options. METHODS: Review of major clinical trials or observational studies when no trial is available. RESULTS/CONCLUSION: Rates of sustained virologic response are widely variable, approximately 40-80%, depending on genotype, and even lower when HIV coinfection occurs. New agents, like small molecules that specifically target the HCV life cycle, may improve response rates; but safety is a concern.

24 Review [Recurrent acute liver toxicity from intravenous methylprednisolone] free! 2008

Rivero Fernández M, Riesco JM, Moreira VF, Moreno A, López San Román A, Arranz G, Ruiz Del Arbol L. · Servicios de Gastroenterología, Hospital Ramón y Cajal. Madrid. Spain. · Rev Esp Enferm Dig. · Pubmed #19159178 links to  free full text

Abstract: Adverse drug reactions (hepatotoxicity) are a frequent cause of acute liver injury with a wide clinical and histological spectrum. An early recognition of drug-related liver disease has been considered essential in clinical practice due to potential risks. In most cases exposure discontinuation improves the clinical picture.Steroids are used in a variety of clinical settings. However, intravenous steroids have rarely been associated with hepatotoxicity. We report the case of a middle-aged woman with multiple sclerosis who received a bolus of methylprednisolone on three occasions for the management of relapsing disease, with the development of repeated episodes of elevated liver enzymes after corticoid administration. In the third episode a liver biopsy was performed, which showed acute hepatitis with bridging necrosis; such histological picture has not been described before in patients treated with intravenous steroids.

25 Review DNA-guided hepatitis B treatment, viral load is essential, but not sufficient. free! 2009

Bárcena Marugán R, García Garzón S. · Services of Liver-Gastroenterology, Ramón y Cajal Hospital, University of Alcalá, Ctra de Colmenar Km 9100, Madrid 28034, Spain. · World J Gastroenterol. · Pubmed #19152446 links to  free full text

Abstract: Hepatitis B virus (HBV) infection is a global public health problem that concerns 350 million people worldwide. Individuals with chronic hepatitis B (CHB) are at increased risk of developing liver cirrhosis, hepatic de-compensation and hepatocellular carcinoma. To maintain undetectable viral load reduces chronic infection complications. There is no treatment that eradicates HBV infection. Current drugs are expensive, are associated with adverse events, and are of limited efficacy. Current guidelines try to standardize the clinical practice. Nevertheless, controversy remains about management of asymptomatic patients with CHB who are hepatitis B e antigen (HBeAg)-positive with normal alanine aminotransferase, and what is the cut-off value of viral load to distinguish HBeAg-negative CHB patients and inactive carriers. We discuss in detail why DNA level alone is not sufficient to begin treatment of CHB.


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