29 research outputs found
Dyskurs (post)konwencjonalnej toĆŒsamoĆci wobec merkantylistycznej natury globalizujÄ cego siÄ Ćwiata
In this article I described the idea of globalization, but I abandoned a strictly scientific analysis and treated the subject more contemplatively. I described not only the process, but also the values (connected with the culture of instant gratification, globalization and the cultural homogenization) and the orientation connected with it (consumerism, commoditization of human life) which shape the surrounding reality as well as ourselves. The question of identity, which is constantly shaping, is significant in this context. It is, just as globalization, fluid, unspecified and ambivalent. I endeavour to prove the hypotheses by adducing sociological, cultural and philosophical classic writers. The very last ones â fairly unexpectedly â become crucial to me and they let me analyse the human nature in postmodern reality holistically
Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries
Abstract
Background
Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres.
Methods
This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and lowâmiddle-income countries.
Results
In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of âsingle-useâ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for lowâmiddle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia.
Conclusion
This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both highâ and lowâmiddleâincome countries
All-oral interferon-free treatments: The end of hepatitis C virus story, the dream and the reality
The year 2014 marked the beginning of the end of the interferon era and the triumph of the all-oral interferon-free regimens for treatment of hepatitis C virus (HCV) infection. These innovative therapies are safe and yield a cure rate of over 90%. The scientific hepatology community is euphoric about the possibility of elimination and even eradication of HCV infection. However, the current high cost of the new all-oral regimens allows access to treatment only for a restricted number of HCV-infected patients. In addition, many other conditions such as modality of access and delivery of care, inadequate knowledge of HCV epidemiology and political commitments to be undertaken, hamper the fulfillment of the dream to eliminate the virus. Since, such conditions are not impossible to overcome, a global urgent effort must be made to allow a widespread access to the new treatments which will permit in the next years to avoid million of HCV-related deaths
NAFLD and NASH in HCV Infection: Prevalence and Significance in Hepatic and Extrahepatic Manifestations
The aim of this paper is to review and up to date the prevalence of hepatitis C virus (HCV)-associated non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH) and their significance in both accelerating progression of HCV-related liver disease and development of HCV-associated extrahepatic diseases. The reported mean prevalence of HCV-related NAFLD was 55%, whereas NASH was reported in 4%â10% of cases. HCV genotype 3 directly induces fatty liver deposition, namely âviral steatosisâ and it is associated with the highest prevalence and degree of severity, whereas, HCV non-3 genotype infection showed lower prevalence of steatosis, which is associated with metabolic factors and insulin resistance. The hostâs genetic background predisposes him or her to the development of steatosis. HCVâs impairment of lipid and glucose metabolism causes fatty liver accumulation; this seems to be a viral strategy to optimize its life cycle. Irrespective of insulin resistance, HCV-associated NAFLD, in a degree-dependent manner, contributes towards accelerating the liver fibrosis progression and development of hepatocellular carcinoma by inducing liver inflammation and oxidative stress. Furthermore, NAFLD is associated with the presence of metabolic syndrome, type 2 diabetes, and atherosclerosis. In addition, HCV-related âmetabolic steatosisâ impairs the response rate to interferon-based treatment, whereas it seems that âviral steatosisâ may harm the response rate to new oral direct antiviral agents. In conclusion, a high prevalence of NAFLD occurs in HCV infections, which is, at least in part, induced by the virus, and that NAFLD significantly impacts progression of the liver disease, therapeutic response, and some extrahepatic diseases
NAFLD and NASH in HCV Infection: Prevalence and Significance in Hepatic and Extrahepatic Manifestations
The aim of this paper is to review and up to date the prevalence of hepatitis C virus (HCV)-associated non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH) and their significance in both accelerating progression of HCV-related liver disease and development of HCV-associated extrahepatic diseases. The reported mean prevalence of HCV-related NAFLD was 55%, whereas NASH was reported in 4%â10% of cases. HCV genotype 3 directly induces fatty liver deposition, namely âviral steatosisâ and it is associated with the highest prevalence and degree of severity, whereas, HCV non-3 genotype infection showed lower prevalence of steatosis, which is associated with metabolic factors and insulin resistance. The hostâs genetic background predisposes him or her to the development of steatosis. HCVâs impairment of lipid and glucose metabolism causes fatty liver accumulation; this seems to be a viral strategy to optimize its life cycle. Irrespective of insulin resistance, HCV-associated NAFLD, in a degree-dependent manner, contributes towards accelerating the liver fibrosis progression and development of hepatocellular carcinoma by inducing liver inflammation and oxidative stress. Furthermore, NAFLD is associated with the presence of metabolic syndrome, type 2 diabetes, and atherosclerosis. In addition, HCV-related âmetabolic steatosisâ impairs the response rate to interferon-based treatment, whereas it seems that âviral steatosisâ may harm the response rate to new oral direct antiviral agents. In conclusion, a high prevalence of NAFLD occurs in HCV infections, which is, at least in part, induced by the virus, and that NAFLD significantly impacts progression of the liver disease, therapeutic response, and some extrahepatic diseases
Clinical features and natural history of cryptogenic cirrhosis compared to hepatitis C virus-related cirrhosis
AIM To characterize natural history of cryptogenic cirrhosis (CC) and compare its clinical features and outcomes to those of hepatitis C virus (HCV)-related cirrhosis. METHODS A prospective cohort of 102 consecutive patients at their first diagnosis of CC were enrolled in this study. The clinical data and outcomes were compared to an age-and Child-Pugh class-matched cohort of 110 patients with HCV-related cirrhosis. Diagnosis of cirrhosis was based on compatible clinical and laboratory parameters, ultrasound/endoscopic parameters and, whenever possible, on histological grounds and transient elastography. All cases of cirrhosis without a definite etiology were enrolled in the CC group. The parameters assessed were: (1) severity of liver disease at the time of first diagnosis; (2) liver decompensation during follow-up; (3) hepatocellular carcinoma (HCC); (4) orthotopic liver transplantation; and (5) death. The independent associated factors were evaluated by multiple logistic regression analysis, and survival and its determinants by the Kaplan-Meier model, log-rank test and Cox regression. RESULTS At the first observation, median age was 66 and 65 years and male gender was 36% and 58% for CC and HCV cirrhosis, respectively. CC showed Child-Pugh class A/B/C of 47%/31%/22%, respectively. Compared to HCV cirrhosis, CC exhibited a significantly higher prevalence of metabolic syndrome (12% vs 54%, respectively), overweight/obesity, high BMI, impaired glucose tolerance, high blood pressure, dyslipidemia, hyperuricemia, cardiovascular diseases, extrahepatic cancer, and gallstones. Over a median period of 42 mo of follow-up, liver decompensation, HCC development and death for CC and HCV-related cirrhosis were 60.8%, and 54.4%, 16.7% and 17.2%, 39.2% and 30%, respectively. The median survival was 60 mo for CC. Independent predictors of death were age and Child-Pugh class at diagnosis. CC showed an approximately twofold higher incidence of HCC in Child-Pugh class A. CONCLUSION Undiagnosed nonalcoholic fatty liver disease has an etiologic role in CC that is associated with a poor prognosis, early HCC development, high risk of cardiovascular disease and extrahepatic cancer
Hepatic Steatosis And necro-Inflammatory Activity overestimate Liver Stiffness by Transient Elastography in Staging Liver Fibrosis in Chronic Hepatitis C
Abstract
Introduction: Transient Elastography (TE) is a non-invasive method to
evaluate liver fibrosis by measuring Liver Stiffness (LS). However, its role in
the full management of chronic hepatitis C patients is not completely appraised
as well as its limitations are scantly explored. In particular the impact of liver
steatosis and necro-inflammatory activity require being more investigated.
Thus, this study was aimed to further assess the reliability of TE in evaluating
liver fibrosis and the impact of hepatic necro-inflammatory activity and steatosis
on the performance of TE.
Patients and Methods: Enrolled were 258 consecutive patients with chronic
hepatitis C who underwent to liver biopsy. Hepatic fibrosis was scored according
to METAVIR, steatosis and necro-inflammatory activity were also scored. LS
ranges were defined according to Castéra. Concordance between liver biopsy
and TE was evaluated by Kappa index test. The performance of TE was
assessed by ROC curves and by calculating AUROC. Factors independently
associated with LS were weight up by logistic regression analysis.
Results: The data showed a high diagnostic accuracy of TE for severe
fibrosis (â„F3) with an AUROC of 0.80 and 0.95 for F3 and F4, respectively,
with a high specificity and sensitivity; but a lower efficiency in discriminate
F1 from F2. At univariate analysis TE showed a relationship with liver fibrosis
(p<0.0001),liver inflammation (p<0.0001) and steatosis (p<0.006).Overall,
multivariate analysis showed that factors independently associate with LS
were liver fibrosis (p<0.0001) and inflammation (p<0.005), whereas, steatosis
(p<0.005) was independently associated with LS in patients with fibrosis lower
then F3.
Conclusion: Our study confirms that TE is a reliable tool to individuate
chronic hepatitis C patients with advanced liver fibrosis or cirrhosis, but it has
lesser accuracy for earlier stages of liver fibrosis. Furthermore, high levels
of liver necro-inflammatory activity overestimate LS and steatosis induces
misevaluation of LS by TE in non-cirrhotic patients
HCV-genotype 3h, a difficult-to-diagnose sub-genotype in the DAA era
No data are available on the clinical presentation and virological pattern in the case of failure to IFN-free regimens in patients with genotype 3h. In this paper authors identified the virological and clinical characteristics of patients with genotype 3h treated with suboptimal or not indicated Interferon (IFN)-free regimens for the misclassification of HCV genotype METHODS: 87 consecutive patients with failure to an IFN-free regimen were re-tested for HCV genotype by HCV NS5B sequencing; the 26 patients identified as harboring HCV-3 were enrolled
Metabolic and renal changes in patients with chronic hepatitis C infection after hepatitis C virus clearance by directâacting antivirals
Background and Aim: The impact of hepatitis C virus (HCV) clearance by direct-
acting antiviral agents (DAAs) on HCV-related extrahepatic manifestations is not
well known. We evaluated the effect of viral clearance on metabolic and renal
parameters.
Methods: In this prospective study, HCV patients who achieved a sustained virologic
response (SVR) by DAAs were evaluated before, at the end, and 24 weeks after treat-
ment for glycemic (serum glucose and insulin, HOMA-IR, HOMA-ÎČ, and HOMA-S)
and lipid (serum cholesterol, triglycerides, low-density lipoprotein [LDL], high-
density lipoprotein) metabolism and renal function (serum creatinine, estimated glo-
merular ïŹltration rate [eGFR]).
Results: A total of 343 consecutive HCV patients were evaluated. At 24 weeks of
post-follow-up, an increase in body mass index (BMI) was observed (P < 0.05).
Regardless of hepatic ïŹbrosis levels and BMI, a reduction in serum glucose
(P = 0.001), HOMA-IR (P < 0.001) and HOMA-ÎČ (P < 0.001) and an increase in
HOMA-S (P < 0.001) values were observed at 24 weeks after HCV clearance as com-
pared to pretreatment values; 32.4% of patients with impaired fasting glucose normal-
ized serum glucose values and 44.6% of diabetics showed an improvement in
glycemic control. In contrast, serum cholesterol (P < 0.001) and LDL cholesterol
(P < 0.001) values were increased. Renal function was improved with about 10%
reduction of serum creatinine values (P < 0.02) and an increase of eGFR (P < 0.001).
A baseline eGFR of â€60 mL/min/1.73 m
2
was a negative predictor of renal function
improvement. HCV clearance was an independent factor improving glucose metabo-
lism and renal function.
Conclusions: Our study shows an occurrence of changes in metabolic and renal
parameters in HCV patients with SVR, anticipating possible future clinical scenarios
that the clinician must know for proper management
Endotoxinemia contributes to steatosis, insulin resistance and atherosclerosis in chronic hepatitis C: the role of pro-inflammatory cytokines and oxidative stress
Purpose
Endotoxin is a component of the outer membrane of gram-negative bacteria that live in the intestine. Endotoxinemia is reported in non-alcoholic fatty liver disease and in cirrhotic patients, causing various biological and clinical effects in the host. It is not known whether endotoxinemia occurs in chronic hepatitis C patients (CHC), therefore we evaluated the occurrence of endotoxinemia and its effect on inflammation, liver damage, insulin resistance (IR) and atherosclerosis.
Methods
Consecutive CHC patients assessed by liver biopsy were enrolled. Endotoxinemia was evaluated by LAL test. IR was estimated by HOMA-IR. Serum TNF-α, IL-8, adiponectin and MCP-1 were measured with ELISA tests. Oxidative stress was estimated by circulating IgG against malondialdehyde adducts with human serum albumin (MDA-HAS). Carotid atherosclerosis was assessed by ultrasonography.
Results
Endotoxinemia was found in 60% of the 126 patients enrolled. A serum level-dependent association between endotoxinemia, steatosis (pâ<â0.001) and HOMA-IR (pâ<â0.006) was observed. Patients with endotoxinemia showed significant increase in TNF-α and IL8 levels. TNF-α correlated with steatosis (p < â0.001) and HOMA-IR (pâ<â0.03), whereas IL8 correlated with steatosis (pâ= â<0.001), TNF-α (pâ<â0.04) and atherosclerosis (pâ<â0.01). The highest levels of endotoxinemia were associated with oxidative stress and a higher prevalence of carotid atherosclerosis. Multivariate logistic regression analysis showed that the independent factors associated with endotoxinemia were hepatic steatosis, HOMA-IR, IL8 and MDA-HAS.
Conclusions
Endotoxinemia occurs with high frequency in CHC patients and contributes to the development of hepatic steatosis, IR and atherosclerosis through increased pro-inflammatory cytokines and oxidative stress. Anti-endotoxin treatment could be of clinical relevance