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1.
Ann Hepatol ; 28(4): 101097, 2023.
Article in English | MEDLINE | ID: mdl-37030570

ABSTRACT

INTRODUCTION AND OBJECTIVES: there is insufficient data regarding bacterial infections in patients with cirrhosis to support recommendations for empiric antibiotic treatments, particularly in Latin America. This study aimed to evaluate bacterial infection's clinical impact and microbiological characteristics, intending to serve as a platform to revise current practices. MATERIALS AND METHODS: multicenter prospective cohort study of patients with cirrhosis and bacterial infections from Argentina and Uruguay. Patient and infection-related information were collected, focusing on microbiology, antibiotic susceptibility patterns, and outcomes. RESULTS: 472 patients were included. Spontaneous bacterial infections and urinary tract infections (UTIs) were registered in 187 (39.6%) and 116 (24.6%) patients, respectively, representing the most common infections. Of the 256 culture-positive infections, 103 (40.2%) were caused by multidrug-resistant organisms (reaching 50% for UTI), and 181 (70.7%) received adequate initial antibiotic treatment. The coverage of cefepime and ceftriaxone was over 70% for the empirical treatment of community-acquired spontaneous infections, but ceftazidime´s coverage was only 40%. For all UTI cases and for healthcare-associated or nosocomial spontaneous bacterial infections, the lower-spectrum antibiotics that covered at least 70% of the isolations were imipenem and meropenem. During hospitalization, a second bacterial infection was diagnosed in 9.8% of patients, 23.9% required at least one organ support, and 19.5% died. CONCLUSIONS: short-term mortality of bacterial infections in patients with cirrhosis is very high, and a high percentage were caused by multidrug-resistant organisms, particularly in UTIs. The information provided might serve to adapt recommendations, particularly related to empirical antibiotic treatment in Argentina and Uruguay. The study was registered in Clinical Trials (NCT03919032).


Subject(s)
Bacterial Infections , Community-Acquired Infections , Cross Infection , Urinary Tract Infections , Humans , Prospective Studies , Argentina/epidemiology , Uruguay/epidemiology , Bacterial Infections/diagnosis , Bacterial Infections/drug therapy , Bacterial Infections/epidemiology , Anti-Bacterial Agents/therapeutic use , Liver Cirrhosis/complications , Liver Cirrhosis/diagnosis , Liver Cirrhosis/drug therapy , Urinary Tract Infections/diagnosis , Urinary Tract Infections/drug therapy , Urinary Tract Infections/epidemiology , Bacteria , Cross Infection/diagnosis , Cross Infection/drug therapy , Cross Infection/epidemiology , Community-Acquired Infections/drug therapy
2.
Eur J Clin Microbiol Infect Dis ; 42(4): 481-491, 2023 Apr.
Article in English | MEDLINE | ID: mdl-36820931

ABSTRACT

It is unclear whether norfloxacin predisposes to infections by multidrug-resistant organisms (MDROs). We aimed to evaluate if patients with cirrhosis receiving norfloxacin prophylaxis at the time of the diagnosis of bacterial infections were more likely to present a multidrug-resistant isolate than those without prophylaxis. This is a cross-sectional study of hospitalized patients with cirrhosis and bacterial infections from Argentina and Uruguay (NCT03919032) from September 2018 to December 2020. The outcome variable was a multidrug-resistant bacterial infection. We used inverse probability of treatment weighting to estimate the odds ratio (OR) of norfloxacin on infection caused by MDROs considering potential confounders. Among the 472 patients from 28 centers, 53 (11%) were receiving norfloxacin at the time of the bacterial infection. Patients receiving norfloxacin had higher MELD-sodium, were more likely to have ascites or encephalopathy, to receive rifaximin, beta-blockers, and proton-pump inhibitors, to have a nosocomial or health-care-associated infection, prior bacterial infections, admissions to critical care units or invasive procedures, and to be admitted in a liver transplant center. In addition, we found that 13 (24.5%) patients with norfloxacin and 90 (21.5%) of those not receiving it presented infections caused by MDROs (adjusted OR 1.55; 95% CI: 0.60-4.03; p = 0.360). The use of norfloxacin prophylaxis at the time of the diagnosis of bacterial infections was not associated with multidrug resistance. These results help empiric antibiotic selection and reassure the current indication of norfloxacin prophylaxis in well-selected patients.Study registration number: NCT03919032.


Subject(s)
Bacterial Infections , Peritonitis , Humans , Norfloxacin/therapeutic use , Cross-Sectional Studies , Bacterial Infections/drug therapy , Bacterial Infections/prevention & control , Bacterial Infections/microbiology , Anti-Bacterial Agents/therapeutic use , Liver Cirrhosis/complications , Liver Cirrhosis/microbiology , Peritonitis/microbiology , Drug Resistance, Multiple , Antibiotic Prophylaxis/adverse effects
3.
J Med Virol ; 92(12): 3545-3555, 2020 Dec.
Article in English | MEDLINE | ID: mdl-32749710

ABSTRACT

INTRODUCTION: Although the effectiveness of direct-acting antivirals (DAAs) for the treatment of chronic hepatitis C virus (HCV) has been reported in real-world settings, predictive factors of treatment failure are lacking. Therefore, we sought to explore the baseline predictors of treatment response to DAAs. METHODS: This was a prospective multicenter cohort study from the Latin American Liver Research Educational and Awareness Network (LALREAN) including patients who received DAA treatment from May 2016 to April 2019. A multivariate logistic regression model was conducted to identify variables associated with unachieved sustained virological response (SVR), defined as treatment failure (odds ratios [OR] and 95% confidence intervals [CIs]). RESULTS: From 2167 patients (55.2% with cirrhosis) who initiated DAA therapy, 89.4% completed a full-course treatment (n = 1938). Median treatment duration was 12 weeks, and 50% received ribavirin. Definitive suspension due to intolerance or other causes was observed in only 1.0% cases (n = 20). Overall non-SVR12 was 4.5% (95% CI, 3.5-5.7). There were no significant differences in treatment failure according to HCV genotypes and the degree of fibrosis. Independently associated variables with DAA failure were liver function impairment according to the Child-Pugh score B OR, 2.09 (P = .06), Child-Pugh C OR, 11.7 (P < .0001); and liver transplant (LT) recipient OR, 3.75 (P = .01). CONCLUSION: In this real-life setting, higher DAA treatment failure rates were observed in patients with decompensated cirrhosis and in LT recipients. These predictive baseline factors should be addressed to individualize the appropriate time-point of DAA treatment (NCT03775798; www. CLINICALTRIALS: gov).

4.
Ann Hepatol ; 19(5): 546-569, 2020.
Article in English | MEDLINE | ID: mdl-32593747

ABSTRACT

The A.A.E.E.H has developed this guideline for the best care of patients with hepatocellular carcinoma (HCC) from Argentina. It was done from May 2018 to March 2020. Specific clinical research questions were systematically searched. The quality of evidence and level of recommendations were organized according to GRADE. HCC surveillance is strongly recommended with abdominal ultrasound (US) every six months in the population at risk for HCC (cirrhosis, hepatitis B or hepatitis C); it is suggested to add alpha-feto protein (AFP) levels in case of inexeperienced sonographers. Imaging diagnosis in patients at risk for HCC has high specificity and tumor biopsy is not mandatory. The Barcelona Clinic Liver Cancer algorithm is strongly recommended for HCC staging and treatment-decision processes. Liver resection is strongly recommended for patients without portal hypertension and preserved liver function. Composite models are suggested for liver transplant selection criteria. Therapies for HCC with robust clinical evidence include transarterial chemoembolization (TACE) and first to second line systemic treatment options (sorafenib, lenvatinib, regorafenib, cabozantinib and ramucirumab). Immunotherapy with nivolumab and pembrolizumab has failed to show statistical benefit but the novel combination of atezolizumab plus bevacizumab has recently shown survival benefit over sorafenib in frontline.


Subject(s)
Carcinoma, Hepatocellular/therapy , Decision Support Techniques , Liver Neoplasms/therapy , Medical Oncology/standards , Neoplasm Staging/standards , Algorithms , Argentina , Biopsy/standards , Carcinoma, Hepatocellular/diagnostic imaging , Carcinoma, Hepatocellular/mortality , Carcinoma, Hepatocellular/pathology , Clinical Decision-Making , Consensus , Evidence-Based Medicine/standards , Humans , Liver Neoplasms/diagnostic imaging , Liver Neoplasms/mortality , Liver Neoplasms/pathology , Predictive Value of Tests , Risk Assessment , Risk Factors , Treatment Outcome , Ultrasonography/standards
5.
Clin Gastroenterol Hepatol ; 18(11): 2554-2563.e3, 2020 10.
Article in English | MEDLINE | ID: mdl-32113892

ABSTRACT

BACKGROUND & AIMS: Little is known about how a sustained virologic response (SVR) to treatment of hepatitis C virus infection with direct-acting antivirals (DAAs) affects patient mortality and development of new liver-related events. We aimed to evaluate the incidence of disease progression in patients treated with DAAs. METHODS: We performed a prospective multicenter cohort study of 1760 patients who received DAA treatment at 23 hospitals in Latin America, from May 1, 2016, through November 21, 2019. We excluded patients with a history of liver decompensation, hepatocellular carcinoma (HCC), or solid-organ transplantation. Disease progression after initiation of DAA therapy included any of the following new events: liver decompensation, HCC, liver transplantation, or death. Evaluation of variables associated with the primary outcome was conducted using a time-dependent Cox proportional hazards models. RESULTS: During a median follow-up period of 26.2 months (interquartile range, 15.3-37.5 mo), the overall cumulative incidence of disease progression was 4.1% (95% CI, 3.2%-5.1%), and after SVR assessment was 3.6% (95% CI, 2.7%-4.7%). Baseline variables associated with disease progression were advanced liver fibrosis (hazard ratio [HR], 3.4; 95% CI, 1.2-9.6), clinically significant portal hypertension (HR, 2.1; 95% CI, 1.2-3.8), and level of albumin less than 3.5 mg/dL (HR, 4.1; 95% CI, 2.3-7.6), adjusted for SVR achievement as a time covariable. Attaining an SVR reduced the risk of liver decompensation (HR, 0.3; 95% CI, 0.1-0.8; P = .016) and de novo HCC (HR, 0.2; 95% CI, 0.1%-0.8%; P = .02) in the overall cohort. CONCLUSIONS: Treatment of hepatitis C virus infection with DAAs significantly reduces the risk of new liver-related complications and should be offered to all patients, regardless of disease stage. Clinicaltrials.gov: NCT03775798.


Subject(s)
Carcinoma, Hepatocellular , Hepatitis C, Chronic , Liver Neoplasms , Antiviral Agents/therapeutic use , Carcinoma, Hepatocellular/drug therapy , Carcinoma, Hepatocellular/epidemiology , Cohort Studies , Disease Progression , Hepacivirus , Hepatitis C, Chronic/complications , Hepatitis C, Chronic/drug therapy , Humans , Liver Cirrhosis/drug therapy , Liver Cirrhosis/epidemiology , Liver Neoplasms/drug therapy , Liver Neoplasms/epidemiology , Prospective Studies , Risk Factors , Sustained Virologic Response
6.
Liver Int ; 39(6): 1033-1043, 2019 06.
Article in English | MEDLINE | ID: mdl-30636361

ABSTRACT

BACKGROUND & AIMS: Data from Europe and North America have been published regarding the risk of developing hepatocellular carcinoma (HCC) after treatment with direct antiviral agents (DAA). We proposed to evaluate cumulative incidence and associated risk factors for de novo HCC. METHODS: This was a prospective multicentre cohort study from Latin America including 1400 F1-F4-treated patients with DAAs (F3-F4 n = 1017). Cox proportional regression models (hazard ratios, HR and 95% CI) were used to evaluate independent associated variables with HCC. Further adjustment with competing risk regression and propensity score matching was carried out. RESULTS: During a median follow-up of 16 months (IQR 8.9-23.4 months) since DAAs initiation, overall cumulative incidence of HCC was 0.02 (CI 0.01; 0.03) at 12 months and 0.04 (CI 0.03; 0.06) at 24 months. Cumulative incidence of HCC in cirrhotic patients (n = 784) was 0.03 (CI 0.02-0.05) at 12 months and 0.06 (CI 0.04-0.08) at 24 months of follow-up. Failure to achieve SVR was independently associated with de novo HCC with a HR of 4.9 (CI 1.44; 17.32), after adjusting for diabetes mellitus, previous interferon non-responder, Child-Pugh and clinically significant portal hypertension. SVR presented an overall relative risk reduction for de novo HCC of 73% (CI 15%-91%), 17 patients were needed to be treated to prevent one case of de novo HCC in this cohort. CONCLUSIONS: Achieving SVR with DAA regimens was associated with a significant risk reduction in HCC. However, this risk remained high in patients with advanced fibrosis, thus demanding continuous surveillance strategies in this population.


Subject(s)
Antiviral Agents/therapeutic use , Carcinoma, Hepatocellular/epidemiology , Hepatitis C, Chronic/drug therapy , Liver Cirrhosis/complications , Liver Neoplasms/epidemiology , Aged , Carcinoma, Hepatocellular/virology , Female , Hepacivirus/drug effects , Hepatitis C, Chronic/complications , Humans , Incidence , Latin America/epidemiology , Liver Cirrhosis/virology , Liver Neoplasms/virology , Male , Middle Aged , Propensity Score , Proportional Hazards Models , Prospective Studies , Risk Factors , Sustained Virologic Response
7.
J Med Virol ; 90(5): 951-958, 2018 05.
Article in English | MEDLINE | ID: mdl-29350402

ABSTRACT

We report the first real-world prospective multicenter cohort study that evaluated the effectiveness and safety of original or generic sofosbuvir-based regimens in patients with chronic hepatitis C in Latin America. The main endpoints were assessment of sustained virological response and serious adverse events rates. A total of 321 patients with chronic hepatitis C treated with the following regimens were included: sofosbuvir plus daclatasvir for 12 (n = 34) or 24 (n = 135) weeks, sofosbuvir plus daclatasvir plus ribavirin for 12 (n = 84) or 24 (n = 56) weeks, or sofosbuvir plus ribavirin for 12 (n = 8) or 24 (n = 2) weeks. Patients received either original sofosbuvir (Sovaldi® , Gilead Sciences, n = 135) or generic sofosbuvir (Probirase® , Laboratorios RICHMOND, n = 184) which were randomly assigned by the National Ministry of Health. Overall, 292 (91%) patients had cirrhosis, 136 (42%) were treatment experienced, and 240 (75%) genotype 1. The overall sustained virological response was 90% (95% CI 86-93%); 91% (95% CI 84-95%) in patients who received Sovaldi® , and 89% (95% CI 84-93%) in patients who received Probirase® . Anemia was the most common adverse event and was reported in 52 (17%) patients. Bacterial infection, gastrointestinal bleeding, worsening of ascites or encephalopathy occurred in less than 5% of the patients. During the study, seven (2%) patients died, four of whom died of cirrhosis-related complications. In summary, we observed similar sustained virological response rates than prior studies, both in patients who received Sovaldi® or Probirase® . Serious adverse events were infrequent, in line with prior studies that included patients with cirrhosis treated with protease-inhibitor-free regimes.


Subject(s)
Antiviral Agents/administration & dosage , Drugs, Generic/administration & dosage , Hepatitis C, Chronic/drug therapy , Sofosbuvir/administration & dosage , Sustained Virologic Response , Adolescent , Adult , Aged , Aged, 80 and over , Antiviral Agents/adverse effects , Argentina , Carbamates , Drug-Related Side Effects and Adverse Reactions/epidemiology , Drug-Related Side Effects and Adverse Reactions/pathology , Drugs, Generic/adverse effects , Female , Humans , Imidazoles/administration & dosage , Male , Middle Aged , Prospective Studies , Pyrrolidines , Ribavirin/administration & dosage , Sofosbuvir/adverse effects , Treatment Outcome , Valine/analogs & derivatives , Young Adult
8.
J Med Virol ; 89(2): 276-283, 2017 02.
Article in English | MEDLINE | ID: mdl-27253181

ABSTRACT

There is scarce data pertaining to acute hepatitis C (aHC) infection in South America. We aimed to describe clinical characteristics and evolution of aHC in a South American cohort. A retrospective survey was conducted at 13 hepatology units. All patients ≥16 years old with aHC diagnosis were included. Demographic, clinical and outcome information were registered in a standardized ad hoc questionnaire. Sixty-four patients were included. The majority were middle-aged (median age: 46 years) and female (65.6%); most of them were symptomatic at diagnosis (79.6%). HCV-1 was the most prevalent genotype (69.2%). Five patients had liver failure: three cases of severe acute hepatitis, one case of fulminant hepatitis and one case of acute-on-chronic liver failure. Nosocomial exposure was the most prevalent risk factor. Evolution was assessed in 46 patients. In the untreated cohort, spontaneous resolution occurred in 45.8% and was associated with higher values of AST/ALT and with the absence of intermittent HCV RNA viremia (P = 0.01, 0.05, and 0.01, respectively). In the treated cohort, sustained virological response was associated with nosocomial transmission and early treatment initiation (P = 0.04 each). The prevalence of nosocomial transmission in this South-American cohort of aHC stresses the importance of following universal precautions to prevent HCV infection. J. Med. Virol. 89:276-283, 2017. © 2016 Wiley Periodicals, Inc.


Subject(s)
Hepatitis C/epidemiology , Hepatitis C/pathology , Adolescent , Adult , Aged , Aged, 80 and over , Alanine Transaminase/blood , Aspartate Aminotransferases/blood , Cross Infection/epidemiology , Cross Infection/pathology , Cross Infection/transmission , Disease Transmission, Infectious , Female , Hepatitis C/transmission , Humans , Male , Middle Aged , Retrospective Studies , Risk Factors , South America/epidemiology , Surveys and Questionnaires , Viremia , Young Adult
9.
World J Hepatol ; 7(4): 703-9, 2015 Apr 08.
Article in English | MEDLINE | ID: mdl-25866607

ABSTRACT

AIM: To evaluate pre-treatment factors associated with sustained virological response (SVR) in patients with hepatitis C virus (HCV) genotype 3 treated with peginterferon and ribavirin (RBV). METHODS: We retrospectively analyzed treatment naive, mono-infected HCV genotype 3 patients treated with peginterferon and RBV. Exclusion criteria included presence of other liver disease, alcohol consumption and African American or Asian ethnicity. The variables collected and compared between patients who achieved an SVR and patients who did not were as follows: gender, age, fibrosis stage, diabetes, body mass index, steatosis, INFL3 polymorphism, pre-treatment HCV-RNA, type of peginterferon, RBV dose and adherence. RESULTS: A total of 107 patients treated between June, 2004 and March, 2013 were included. Mean treatment duration was 25.1 (± 1.8) wk. Overall, 58% (62/107) of the patients achieved an SVR and 42% (45/107) did not. In the multivariate logistic regression analysis, pre-treatment HCV-RNA ≥ 600000 UI/mL (OR = 0.375, 95%CI: 0.153-0.919, P = 0.032) and advanced fibrosis (OR = 0.278, 95%CI: 0.113-0.684, P = 0.005) were significantly associated with low SVR rates. In patients with pre-treatment HCV-RNA ≥ 600000 UI/mL and advanced fibrosis, the probability of achieving an SVR was 29% (95%CI: 13.1-45.2). In patients with pre-treatment HCV-RNA < 600000 UI/mL and mild to moderate fibrosis, the probability of achieving an SVR was 81% (95%CI: 68.8-93.4). CONCLUSION: In patients with HCV genotype 3 infections the presence of advance fibrosis and high pre-treatment viral load might be associated with poor response to peginterferon plus RBV. These patients could benefit the most from new direct antiviral agents-based regimes.

10.
Acta Gastroenterol Latinoam ; 42(2): 105-11, 2012 Jun.
Article in English | MEDLINE | ID: mdl-22876712

ABSTRACT

OBJECTIVES: Hepatic encephalopathy is a serious neuropsychiatric complication in advanced liver disease. The affected patients exhibit alterations in psychomotor and intellectual functions. The aims of this study were to identif the set ofnormal values for the number connection tests (NCT-A and NCT-B) in a population of volunteers without liver disease, to compare the values from this reference population with those from patients with cirrhosis without hepatic encephalopathy. MATERIALS AND METHODS: This study was performed in two referral hospitals in an urban setting from the city of La Plata. We evaluated the Number Connection Tests in 112 healthy subjects and 30 patients with cirrhosis without manifestations of hepatic encephalopathy. Time for performing the tests was measured in seconds. Results were compared according to age, gender, level of education and fine motor skills in both groups. RESULTS: Mean age in the control group was 45.3years; 56 (50%) were women. Mean age in the cirrhotic group was 54.5 years; 8 (27%) were women. In the control group, the mean time for completing NCT-A and NCT-B was 60 s +/- 36s and 140 s +/- 60 s, respectively. In the cirrhotic group, the mean time for completing NCT-A and NCT-B was 114 s +/- 64 y 232 s +/- 87 s, respectively (P = 0.00001 for both tests). 56.6% of cirrhotic patients took more than 2 SD to perform the NCT-A and 53.3%, more than 2 SD to perform the NCT-B. CONCLUSION: We have obtained reference values for NCT-A and NCT-B completing times in our healthy population. Cirrhotic patients without overt hepatic encephalopathy took double time than controls to complete NCT-A and NCT-B and over half of our patients would have minimal hepatic encephalopathy.


Subject(s)
Hepatic Encephalopathy/diagnosis , Adolescent , Adult , Aged , Case-Control Studies , Educational Status , Female , Humans , Male , Middle Aged , Neuropsychological Tests , Reference Values , Sensitivity and Specificity , Young Adult
11.
Acta Gastroenterol Latinoam ; 38(3): 194-8, 2008 Sep.
Article in Spanish | MEDLINE | ID: mdl-18979899

ABSTRACT

The Dubin-Johnson syndrome is a hereditary deficiency in the excretion ofconjugated bilirrubin by hepatocytes characterized by chronic hyperbilirubinemia, alteration in coproporphyrin metabolism, and intracellular deposition of a dark melanin-like pigment giving the liver a typical black cast. We report a 28-year-old male patient who presented conjunctival jaundice and conjugated-hyperbilirubinemia without no other alteration in hepatic biochemistry. The diagnosis of this syndrome was perfomed by using the low-risk methods of laparoscopy-facilitated hepatic biopsy and oral cholecystography In contrast, we avoided the classical Bromsulphalein test because of potential severe side effects. We stress here the current importance of these tests for confirming the diagnosis. By using this methodology, we were not able to quantify the isomeric profile of the urinary coproporphyrins nor 99mTc-HIDA cholescintigraphy. In conclusion, we confirm the utility of hepatic biopsy with the aid of laparoscopy and oral cholecystography for the diagnosis of the Dubin-Johnson syndrome on the basis of their effectiveness and relative lack of complications.


Subject(s)
Hyperbilirubinemia, Hereditary/diagnosis , Adult , Conjunctival Diseases/diagnosis , Coproporphyrins/urine , Humans , Jaundice, Chronic Idiopathic/diagnosis , Liver/pathology , Male , Syndrome
12.
Gastroenterol Hepatol ; 31(7): 436-8, 2008.
Article in Spanish | MEDLINE | ID: mdl-18783689

ABSTRACT

We present a 26-year-old man who developed severe acute hepatitis after consumption of an Aloe vera tea. On admission, the patient showed characteristic biochemical and clinical features of acute hepatitis and liver failure. The patient reported that he had been drinking an Aloe vera tea 2-4 weeks before symptom onset. Other causes of acute hepatitis were excluded and the patient improved after withdrawal of the Aloe vera tea. Aloe vera should be considered as a possible cause in cases of acute hepatitis.


Subject(s)
Aloe/adverse effects , Beverages/adverse effects , Chemical and Drug Induced Liver Injury/etiology , Adult , Humans , Male , Severity of Illness Index
13.
Gastroenterol. hepatol. (Ed. impr.) ; 31(7): 436-438, ago.2008. tab
Article in Es | IBECS | ID: ibc-70199

ABSTRACT

Presentamos un caso de hepatitis aguda grave en un varónde 26 años, probablemente debida al consumo de té de Aloevera. El paciente se presentó con manifestaciones clínicas ybioquímicas de hepatitis aguda e insuficiencia hepática y refirióque había tomado té de Aloe vera, elaborado en formaartesanal, 2-4 semanas antes de comenzar con los síntomasde la enfermedad. Mediante el uso de escalas de causalidadse pudo considerar como causa probable de la enfermedadhepática el Aloe vera y como improbable los fármacos que elpaciente había consumido de forma simultánea. Recomendamostener en cuenta el Aloe vera como una causa posiblede hepatitis aguda


We present a 26-year-old man who developed severe acutehepatitis after consumption of an Aloe vera tea. On admission,the patient showed characteristic biochemical and clinicalfeatures of acute hepatitis and liver failure. The patientreported that he had been drinking an Aloe vera tea 2-4 weeksbefore symptom onset. Other causes of acute hepatitiswere excluded and the patient improved after withdrawal ofthe Aloe vera tea. Aloe vera should be considered as a possiblecause in cases of acute hepatitis


Subject(s)
Humans , Male , Adult , Aloe/adverse effects , Chemical and Drug Induced Liver Injury/diagnosis , Hepatic Insufficiency/chemically induced , Plants, Medicinal/adverse effects
14.
Gastroenterol Hepatol ; 29(6): 334-7, 2006.
Article in Spanish | MEDLINE | ID: mdl-16790181

ABSTRACT

BACKGROUND AND OBJECTIVES: The aim of this study was to investigate the occurrence of hypertransaminasemia (hTAMSemia) as an indicator of liver damage and to establish the association of this hepatotoxicity with exposure to aromatic hydrocarbons (benzene, toluene, and xylene [BTX]) among workers in a petrochemical company. PATIENTS AND METHOD: The medical records of 167 industrial employees, 95 with hydrocarbon exposure (EHCs) and 72 without exposure (NEHCs) were reviewed. Age, sex, number of years employed, body mass index, and biochemical and hematological parameters were evaluated. Employees with previous liver disease, diabetes mellitus, or alcohol intake (> 50 g/day) were excluded. In employees with hTAMSemia, we performed a proteinogram and hepatic ultrasonography and tested blood samples for prothrombin and hepatitis B and C markers. Within this subgroup, 3 workers were excluded (due to serum markers of hepatitis B virus in 2 and refusal to participate in 1), leaving a total of 92 in the EHC group. Finally, the working environment was screened for volatile contaminants. RESULTS: Twenty-seven employees from the EHC group (29.4%) and 1 from the NEHC group (1.4%) had hTAMSemia (p = 0.001). The remaining biochemical tests and parameters measured showed no significant differences between the two groups. Comparison between the EHC subgroup of 27 workers showing hTAMSemia and the remainder of the EHC group with normal values (65 workers) revealed no differences in the other parameters measured. Of the 27 workers of the former subgroup, 14 (51.9%) showed ultrasonographic images compatible with a fatty liver. One worker (1.4%) in the NEHC group showed hTAMSemia and ultrasonography compatible with fatty liver. The environmental levels of BTX during the 9 months of the study remained below the maximum values permitted by law in Argentina (benzene, 1.5 ppm., toluene 10 ppm and xylene 18.5 ppm). The odds ratio of developing hTAMSemia in the EHC group was 27.7 (p = 0.002). CONCLUSIONS: Occupational exposure to aromatic hydrocarbons may cause liver damage. The liver is more vulnerable to these hydrocarbons than bone marrow. These conclusions would argue for a modification of the environmental regulations currently in force within the petroleum refineries in Argentina.


Subject(s)
Chemical Industry , Chemical and Drug Induced Liver Injury/etiology , Hydrocarbons, Aromatic/toxicity , Occupational Diseases/chemically induced , Adult , Chemical and Drug Induced Liver Injury/blood , Humans , Middle Aged , Transaminases/blood
15.
Medicina (B Aires) ; 65(2): 113-6, 2005.
Article in Spanish | MEDLINE | ID: mdl-16075803

ABSTRACT

Liver disease is a well-known cause of early morbidity and mortality affecting 80% of patients receiving allogeneic bone-marrow transplantation (BMT). Drug toxicity, veno-occlusive disease (VOD), acute graft-versus-host disease (GVHD), and fungal, bacterial, and viral infections are the most frequent hepatic complications during this period. The aim of this retrospective study was to determine the prevalence and etiology of liver disease and its impact on mortality as well as to assess the predictive value of pre BMT hepatic biochemical tests on the subsequent occurrence of acute and/or chronic GVHD and patient mortality. Of a total of 236 patients who underwent allogeneic BMT, 82 were analysed. Liver dysfunction was found in 88%. The causes of liver disease were: acute GVHD, 40.2%; chronic GVHD, 15.9%; unknown, 9.8%; sepsis, 7.3%; hepatotoxicity, 6.1%; VOD, 3.7%; acute hepatitis and disease recurrence, 2.4%. The mortality rate was 37%. We found acute liver failure (ALF) in 10% of the deaths (8 patients). The causes of ALF in these cases were acute GVHD progression in 5, herpetic hepatitis in 1, disease recurrence in 1, and VOD in 1. The correlation coefficients indicating positive predictive values of pre BMT hepatic biochemical tests for the subsequent occurrence of acute GVHD, chronic GVHD, and mortality were 0.27, 0.14, and 0.43, respectively. There was no significant difference between patients with abnormal or normal pre BMT liver function tests in the frequency of acute and chronic GVHD or mortality.


Subject(s)
Graft vs Host Disease/epidemiology , Hematopoietic Stem Cell Transplantation , Liver Diseases/epidemiology , Adolescent , Adult , Argentina/epidemiology , Female , Graft vs Host Disease/etiology , Graft vs Host Disease/mortality , Hematopoietic Stem Cell Transplantation/mortality , Humans , Liver Diseases/etiology , Liver Diseases/mortality , Liver Failure, Acute/epidemiology , Liver Failure, Acute/etiology , Liver Failure, Acute/mortality , Male , Middle Aged , Predictive Value of Tests , Retrospective Studies , Transaminases/analysis
16.
Medicina [B Aires] ; 65(2): 113-6, 2005.
Article in Spanish | BINACIS | ID: bin-38330

ABSTRACT

Liver disease is a well-known cause of early morbidity and mortality affecting 80


of patients receiving allogeneic bone-marrow transplantation (BMT). Drug toxicity, veno-occlusive disease (VOD), acute graft-versus-host disease (GVHD), and fungal, bacterial, and viral infections are the most frequent hepatic complications during this period. The aim of this retrospective study was to determine the prevalence and etiology of liver disease and its impact on mortality as well as to assess the predictive value of pre BMT hepatic biochemical tests on the subsequent occurrence of acute and/or chronic GVHD and patient mortality. Of a total of 236 patients who underwent allogeneic BMT, 82 were analysed. Liver dysfunction was found in 88


. The causes of liver disease were: acute GVHD, 40.2


; chronic GVHD, 15.9


; unknown, 9.8


; sepsis, 7.3


; hepatotoxicity, 6.1


; VOD, 3.7


; acute hepatitis and disease recurrence, 2.4


. The mortality rate was 37


. We found acute liver failure (ALF) in 10


of the deaths (8 patients). The causes of ALF in these cases were acute GVHD progression in 5, herpetic hepatitis in 1, disease recurrence in 1, and VOD in 1. The correlation coefficients indicating positive predictive values of pre BMT hepatic biochemical tests for the subsequent occurrence of acute GVHD, chronic GVHD, and mortality were 0.27, 0.14, and 0.43, respectively. There was no significant difference between patients with abnormal or normal pre BMT liver function tests in the frequency of acute and chronic GVHD or mortality.

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