Patient Features (patient + feature)

Distribution by Scientific Domains


Selected Abstracts


Incidence, risk factors, and survival of hepatocellular carcinoma in primary biliary cirrhosis: Comparative analysis from two centers,

HEPATOLOGY, Issue 4 2009
Anna Cavazza
The limited information and divergent results on the prevalence, incidence, and risk factors for hepatocellular carcinoma (HCC) in patients with primary biliary cirrhosis (PBC) may be due to the low prevalence of the disease and geographical and environmental differences. Therefore, we analyzed the incidence, prevalence, survival, and risk factors for HCC in patients with PBC from two European centers (389 from Barcelona, Spain, and 327 from Padova, Italy) followed up for 9.3 ± 6.5 years. Gender, age, smoking habit, alcohol consumption, presence of hepatitis B surface antigen (HBsAg) or hepatitis C virus antibodies (anti-HCV), and advanced histological stage (III-IV) were evaluated as risk factors for tumor development. Twenty-four patients (13 from Barcelona and 11 from Padova) developed HCC. The prevalence of HCC was similar in Barcelona (3.34%) and Padova (3.36%). The incidence was 0.35 and 0.37 per 100 patient-years, respectively. Male gender, age >52 years, smoking habit, alcohol >40 g/day, HBsAg, and anti-HCV were not associated with HCC. Advanced histological stage was the only factor associated with the development of HCC (odds ratio [OR]: 5.80, 95% confidence interval [CI]: 2.34-14.38, P < 0.001). When analyzing the two series separately, male gender was associated with higher likelihood of HCC in Padova (OR: 8.09, 95% CI: 1.93-33.8, P < 0.01). The median survival after the diagnosis of HCC was 36 months. Conclusion: The prevalence and incidence of HCC is similar in Spain and Italy and the advanced histological stage is the only risk factor associated with the development of HCC in PBC. The slight disparities observed between the two series might be explained by patient features on diagnosis of liver disease. (HEPATOLOGY 2009.) [source]


Therapy of acute hepatitis C

HEPATOLOGY, Issue S1 2002
Professor Alfredo Alberti M.D.
Acute hepatitis C has a high propensity to become chronic, which provides the rationale for treating patients with acute disease attempting to prevent chronicity. Almost all published studies on therapy of acute hepatitis C have been small in size, uncontrolled, and highly heterogeneous as to patient features, dose and duration of treatment, follow-up evaluation, and criteria used to define efficacy and safety. The published studies on treatment of acute hepatitis C have used standard alfa or beta interferon monotherapy: none have evaluated combination therapy of interferon and ribavirin or peginterferon. Several meta-analyses of published studies have concluded that initiation of interferon monotherapy during the acute phase of hepatitis C virus (HCV) infection significantly reduces (by 30% to 40%) evolution to chronic hepatitis. The tolerability of interferon in acute hepatitis C has been excellent, even in symptomatic and icteric patients; the side effects and adverse events being similar in type and frequency to those seen when treating chronic cases. Thus, currently available data support treatment of patients with acute hepatitis C, but data are insufficient to draw firm conclusions about which patients to treat, when therapy should be started, or what regimen is optimal. Future studies of adequate size and design should focus on efficacy and tolerability of peginterferons and whether therapy should be started immediately after diagnosis or delayed for 2 to 4 months to avoid treatment of patients who spontaneously recover. (HEPATOLOGY 2002;36:S195-S200). [source]


Medico-legal assessment of disability in narcolepsy: an interobserver reliability study

JOURNAL OF SLEEP RESEARCH, Issue 1 2008
FRANCESCA INGRAVALLO
Summary Impairment because of narcolepsy strongly limits job performance, but there are no standard criteria to assess disability in people with narcolepsy and a scale of disease severity is still lacking. We explored: (1) the interobserver reliability among Italian Medical Commissions making disability and handicap benefit decisions for people with narcolepsy, searching for correlations between the recognized disability degree and patients' features; (2) the willingness to report patients to the driving licence authority and (3) possible sources of variance in judgement. Fifteen narcoleptic patients were examined by four Medical Commissions in simulated sessions. Raw agreement and interobserver reliability among Commissions were calculated for disability and handicap benefit decisions and for driving licence decisions. Levels of judgement differed on percentage of disability (P < 0.001), severity of handicap (P = 0.0007) and the need to inform the driving licence authority (P = 0.032). Interobserver reliability ranged from Kappa = ,0.10 to 0.35 for disability benefit decision and from Kappa = ,0.26 to 0.36 for handicap benefit decision. The raw agreement on driving licence decision ranged from 73% to 100% (Kappa not calculable). Spearman's correlation between percentages of disability and patients' features showed correlations with age, daytime naps, sleepiness, cataplexy and quality of life. This first interobserver reliability study on social benefit decisions for narcolepsy shows the difficulty of reaching an agreement in this field, mainly because of variance in interpretation of the assessment criteria. The minimum set of indicators of disease severity correlating with patients' self assessments encourages a disability classification of narcolepsy. [source]


Predicting post-operative delirium in elderly patients undergoing surgery for hip fracture

PSYCHOGERIATRICS, Issue 2 2006
Gregory GOLDENBERG
Abstract Background:, Delirium in elderly patients with hip fracture has a significant negative influence on the disease course. Awareness of risk factors for postoperative delirium (POD) may lead to the development of effective preventive strategies. The aims of this study were: to find patients' features that are predictors of POD, and; to develop a model predicting the risk for POD. Patients and methods:, Seventy-seven elderly patients (81.9 years of age, SD 7.5 years) were non-delirious prior to surgery and enrolled in the study. Delirium was diagnosed by Confusion Assessment Method and Algorrhithm. Patients' characteristics as potential predictors of POD were analyzed by logistic regression analysis on SAS software. Results:, Postoperative delirium was diagnosed in 37 patients. Use of multiple (>3) medications, lower scores on cognitive tests (<20 on Set Test and <24 on Mini-mental Status Exam), albumin level less than 3.5 g/dL, hematocrit level less than 33% and age over 81 years were predictors of POD. A logistic regression formula including these predictors weighed by their parameter estimates can be used to calculate the probability of POD. The model had a good fit and a good predictive power. A Delirium Predicting Scale was derived based on parameter estimates of these predictors. Patients can be classified as low-, intermediate- or high-risk for POD. Conclusions:, A logistic regression model, which includes patients' age, medication history, cognitive performance measured by Set Test and Mini-Mental Status Exam, albumin and hematocrit levels, can be used to predict risk for POD after surgical repair of fractured hip in elderly patients. [source]