lunes, 11 de diciembre de 2017

Toxicidad hepática por fármacos / Drug hepatotoxicity

Diciembre 10, 2017. No. 2928
Daño hepático inducido por drogas. ¿Conocemos todo?
Drug-induced liver injury: Do we know everything?
World J Hepatol. 2017 Apr 8;9(10):491-502. doi: 10.4254/wjh.v9.i10.491.
Abstract
Interest in drug-induced liver injury (DILI) has dramatically increased over the past decade, and it has become a hot topic for clinicians, academics, pharmaceutical companies and regulatory bodies. By investigating the current state of the art, the latest scientific findings, controversies, and guidelines, this review will attempt to answer the question: Do we know everything? Since the first descriptions of hepatotoxicity over 70 years ago, more than 1000 drugs have been identified to date, however, much of our knowledge of diagnostic and pathophysiologic principles remains unchanged. Clinically ranging from asymptomatic transaminitis and acute or chronic hepatitis, to acute liver failure, DILI remains a leading causes of emergent liver transplant. The consumption of unregulated herbal and dietary supplements has introduced new challenges in epidemiological assessment and clinician management. As such, numerous registries have been created, including the United States Drug-Induced Liver Injury Network, to further our understanding of all aspects of DILI. The launch of LiverTox and other online hepatotoxicity resources has increased our awareness of DILI. In 2013, the first guidelines for the diagnosis and management of DILI, were offered by the Practice Parameters Committee of the American College of Gastroenterology, and along with the identification of risk factors and predictors of injury, novel mechanisms of injury, refined causality assessment tools, and targeted treatment options have come to define the current state of the art, however, gaps in our knowledge still undoubtedly remain.
KEYWORDS: Acetaminophen toxicity; Acute liver failure; Cholestatic injury; Drug-induced liver injury; Hepatoxicity; Herbal-induced liver injury; Hy's law; Liver biopsy; Pharmacoepidemiology
RUCAM en daño hepático inducido por hierbas y fármacos. Actualización
RUCAM in Drug and Herb Induced Liver Injury: The Update.
Int J Mol Sci. 2015 Dec 24;17(1). pii: E14. doi: 10.3390/ijms17010014.
Abstract
RUCAM (Roussel Uclaf Causality Assessment Method) or its previous synonym CIOMS (Council for International Organizations of Medical Sciences) is a well established tool in common use to quantitatively assess causality in cases of suspected drug induced liver injury (DILI) and herb induced liver injury (HILI). Historical background and the original work confirm the use of RUCAM as single term for future cases, dismissing now the term CIOMS for reasons of simplicity and clarity. RUCAM represents a structured, standardized, validated, and hepatotoxicity specific diagnostic approach that attributes scores to individual key items, providing final quantitative gradings of causality for each suspect drug/herb in a case report. Experts from Europe and the United States had previously established in consensus meetings the first criteria of RUCAM to meet the requirements of clinicians and practitioners in care for their patients with suspected DILI and HILI. RUCAMwas completed by additional criteria and validated, assisting to establish the timely diagnosis with a high degree of certainty. In many countries and for more than two decades, physicians, regulatory agencies, case report authors, and pharmaceutical companies successfully applied RUCAM for suspected DILI and HILI. Their practical experience, emerging new data on DILI and HILI characteristics, and few ambiguous questions in domains such alcohol use and exclusions of non-drug causes led to the present update of RUCAM. The aim was to reduce interobserver and intraobserver variability, to provide accurately defined, objective core elements, and to simplify the handling of the items. We now present the update of the well accepted original RUCAM scale and recommend its use for clinical, regulatory, publication, and expert purposes to validly establish causality in cases of suspected DILI and HILI, facilitating a straightforward application and an internationally harmonized approach of causality assessment as a common basic tool.
KEYWORDS: CIOMS; RUCAM; causality assessment; dietary supplements; drug hepatotoxicity; drug induced liver injury; drugs; herb induced liver injury; herbal hepatotoxicity; herbs
Trasplante hepático en falla hepática inducida por fármacos
Liver transplantation for drug-induced acute liver failure.
Eur Rev Med Pharmacol Sci. 2017 Mar;21(1 Suppl):37-45.
Abstract
OBJECTIVES: To summarize the different clinical features of drug-induced acute liver failure, the diagnostic work-up, conservative management and the prognostic scores currently used to list patients for liver transplantation. EVIDENCE AND INFORMATION SOURCES: The current review is based on an analysis of the current literature and the caseload experience of the Authors on this topic. STATE OF THE ART: Drug-induced liver injury is the leading cause of acute liver failure in the adult population in Western countries, with a transplant-free survival rate of less than 50%. Main subtypes include paracetamol and idiosyncratic drug-induced injury, which differ in epidemiology, clinical course, prognosis and conservative management. In cases of a high likelihood of death, urgent hepatic transplantation is indicated, but the decision whether and when to put a patient with drug-induced acute liver failure on the list for urgent liver transplant is extremely difficult and requires constant interdisciplinary exchange and continuous updating of the clinical picture.
CONCLUSIONS: Intensive management should be done in a clinical tertiary referral center which has a specialized team of hepatologists and a liver transplant center.

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