79 research outputs found

    Intestinal parasites in Rupicapra spp. populations: study in the framework of the relevant italian project (PRIN)

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    Intestinal parasites can seriously threaten the performances and well-being of wild ungulates. In this study, we investigated the occurrence and parasitic burden of protozoans and gastro-intestinal helminths (GIH) in Rupicapra spp. From September 2013 to January 2016, 352 fresh fecal samples were collected from Rupicapra rupicapra rupicapra in the Alps (N=262) and from Rupicapra pyrenaica ornata in the Apennines (N=90). Samples were examined using standard copro-parasitological methods for Eimeria and GIH and an immunofluorescence test for Cryptosporidium and Giardia duodenalis. Parts of gp60 and ssRNA/gdh/βgiardin genes were used to identify these protozoa species/genotypes. In R.r.rupicapra and in R.p.ornata, 7 and 6 parasite taxa were identified, respectively, with a mean number of 1.7 species/host (min-max 0-5) and 2.05 (min-max: 0-4), respectively. Overall, 85.3% (95%, C.I.=81.5-89.1) of the animals investigated scored microscopically positive to Eimeria spp. with a mean intensity of emission (m.i.e.) of up to 776 o.p.g.; 5.4% (95%, C.I.=3.07.7) were positive to G. duodenalis and 82% (95%, C.I. 77.91-86.15) to GIH with a m.i.e. of up to 147 e.p.g. Prevalence in R.r.rupicapra was 81.2% with a m.i.e. of 380 o.p.g. for Eimeria, 6.87% for Giardia, and 77.45% for GIH with a m.i.e. of 142 e.p.g. Prevalence in R.p.ornata was 94.4% with m.i.e. of 1,093 o.p.g. for Eimeria, 1.1% for G.duodenalis, and 94.4% for GIH with a m.i.e. of 151 e.p.g. Assemblages A/AI and E were identified in R.r.rupicapra and assemblage A/AIII in R.p.ornata. None of the animals tested positive for Cryptosporidium. The results show that the prevalence of Eimeria, G.duodenalis and GIH in both host species is nonnegligible, with a significantly higher parasitic burden in R.p.ornata. The detection of G. duodenalis in Rupicapra spp. is noteworthy. This study updates the data on parasitic fauna of these wild bovids. The impact of these parasites on chamois population dynamics will be inferred from the results/variables obtained throughout the entire interdisciplinary project

    Colistin and rifampicin compared with colistin alone for the treatment of serious infections due to extensively drug-resistant Acinetobacter baumannii: A multicenter, randomized clinical trial

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    Background. Extensively drug-resistant (XDR) Acinetobacter baumannii may cause serious infections in critically ill patients. Colistin often remains the only therapeutic option. Addition of rifampicin to colistin may be synergistic in vitro. In this study, we assessed whether the combination of colistin and rifampicin reduced the mortality of XDR A. baumannii infections compared to colistin alone. Methods. This multicenter, parallel, randomized, open-label clinical trial enrolled 210 patients with life-threatening infections due to XDR A. baumannii from intensive care units of 5 tertiary care hospitals. Patients were randomly allocated (1:1) to either colistin alone, 2 MU every 8 hours intravenously, or colistin (as above), plus rifampicin 600 mg every 12 hours intravenously. The primary end point was overall 30-day mortality. Secondary end points were infection-related death, microbiologic eradication, and hospitalization length. Results. Death within 30 days from randomization occurred in 90 (43%) subjects, without difference between treatment arms (P = .95). This was confirmed by multivariable analysis (odds ratio, 0.88 [95% confidence interval, .46-1.69], P = .71). A significant increase of microbiologic eradication rate was observed in the colistin plus rifampicin arm (P = .034). No difference was observed for infection-related death and length of hospitalization. Conclusions. In serious XDR A. baumannii infections, 30-day mortality is not reduced by addition of rifampicin to colistin. These results indicate that, at present, rifampicin should not be routinely combined with colistin in clinical practice. The increased rate of A. baumannii eradication with combination treatment could still imply a clinical benefi

    The personal experience of parenting a child with Juvenile Huntington’s Disease: perceptions across Europe

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    The study reported here presents a detailed description of what it is like to parent a child with juvenile Huntington’s disease in families across four European countries. Its primary aim was to develop and extend findings from a previous UK study. The study recruited parents from four European countries: Holland, Italy, Poland and Sweden,. A secondary aim was to see the extent to which the findings from the UK study were repeated across Europe and the degree of commonality or divergence across the different countries. Fourteen parents who were the primary caregiver took part in a semistructured interview. These were analyzed using an established qualitative methodology, interpretative phenomenological analysis. Five analytic themes were derived from the analysis: the early signs of something wrong; parental understanding of juvenile Huntington’s disease; living with the disease; other people’s knowledge and understanding; and need for support. These are discussed in light of the considerable convergence between the experiences of families in the United Kingdom and elsewhere in Europe

    Survival after Locoregional Treatments for Hepatocellular Carcinoma: A Cohort Study in Real-World Patients

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    Evidence of relative effectiveness of local treatments for hepatocellular carcinoma (HCC) is scanty. We investigated, in a retrospective cohort study, whether surgical resection, radiofrequency ablation (RFA), percutaneous ethanol injection (PEI), and transarterial embolization with (TACE) or without (TAE) chemotherapy resulted in different survival in clinical practice. All patients first diagnosed with HCC and treated with any locoregional therapy from 1998 to 2002 in twelve Italian hospitals were eligible. Overall survival (OS) was the unique endpoint. Three main comparisons were planned: RFA versus PEI, surgical resection versus RFA/PEI (combined), TACE/TAE versus RFA/PEI (combined). Propensity score method was used to minimize bias related to non random treatment assignment. Overall 425 subjects were analyzed, with 385 (91%) deaths after a median followup of 7.7 years. OS did not significantly differ between RFA and PEI (HR 1.11, 95% CI 0.79–1.57), between surgery and RFA/PEI (HR 0.95, 95% CI 0.64–1.41) and between TACE/TAE and RFA/PEI (HR 0.88, 95% CI 0.66–1.17). 5-year OS probabilities were 0.14 for RFA, 0.18 for PEI, 0.27 for surgery, and 0.15 for TACE/TAE. No locoregional treatment for HCC was found to be more effective than the comparator. Adequately powered randomized clinical trials are still needed to definitely assess relative effectiveness of locoregional HCC treatment

    Development of a Nomogram Predicting the Risk of Persistence/Recurrence of Cervical Dysplasia

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    Background: Cervical dysplasia persistence/recurrence has a great impact on women's health and quality of life. In this study, we investigated whether a prognostic nomogram may improve risk assessment after primary conization. Methods: This is a retrospective multi-institutional study based on charts of consecutive patients undergoing conization between 1 January 2010 and 31 December 2014. A nomogram assessing the importance of different variables was built. A cohort of patients treated between 1 January 2015 and 30 June 2016 was used to validate the nomogram. Results: A total of 2966 patients undergoing primary conization were analyzed. The median (range) patient age was 40 (18-89) years. At 5-year of follow-up, 6% of patients (175/2966) had developed a persistent/recurrent cervical dysplasia. Median (range) recurrence-free survival was 18 (5-52) months. Diagnosis of CIN3, presence of HR-HPV types, positive endocervical margins, HPV persistence, and the omission of HPV vaccination after conization increased significantly and independently of the risk of developing cervical dysplasia persistence/recurrence. A nomogram weighting the impact of all variables was built with a C-Index of 0.809. A dataset of 549 patients was used to validate the nomogram, with a C-index of 0.809. Conclusions: The present nomogram represents a useful tool for counseling women about their risk of persistence/recurrence after primary conization. HPV vaccination after conization is associated with a reduced risk of CIN2+

    Colorectal Cancer Stage at Diagnosis Before vs During the COVID-19 Pandemic in Italy

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    IMPORTANCE Delays in screening programs and the reluctance of patients to seek medical attention because of the outbreak of SARS-CoV-2 could be associated with the risk of more advanced colorectal cancers at diagnosis. OBJECTIVE To evaluate whether the SARS-CoV-2 pandemic was associated with more advanced oncologic stage and change in clinical presentation for patients with colorectal cancer. DESIGN, SETTING, AND PARTICIPANTS This retrospective, multicenter cohort study included all 17 938 adult patients who underwent surgery for colorectal cancer from March 1, 2020, to December 31, 2021 (pandemic period), and from January 1, 2018, to February 29, 2020 (prepandemic period), in 81 participating centers in Italy, including tertiary centers and community hospitals. Follow-up was 30 days from surgery. EXPOSURES Any type of surgical procedure for colorectal cancer, including explorative surgery, palliative procedures, and atypical or segmental resections. MAIN OUTCOMES AND MEASURES The primary outcome was advanced stage of colorectal cancer at diagnosis. Secondary outcomes were distant metastasis, T4 stage, aggressive biology (defined as cancer with at least 1 of the following characteristics: signet ring cells, mucinous tumor, budding, lymphovascular invasion, perineural invasion, and lymphangitis), stenotic lesion, emergency surgery, and palliative surgery. The independent association between the pandemic period and the outcomes was assessed using multivariate random-effects logistic regression, with hospital as the cluster variable. RESULTS A total of 17 938 patients (10 007 men [55.8%]; mean [SD] age, 70.6 [12.2] years) underwent surgery for colorectal cancer: 7796 (43.5%) during the pandemic period and 10 142 (56.5%) during the prepandemic period. Logistic regression indicated that the pandemic period was significantly associated with an increased rate of advanced-stage colorectal cancer (odds ratio [OR], 1.07; 95%CI, 1.01-1.13; P = .03), aggressive biology (OR, 1.32; 95%CI, 1.15-1.53; P < .001), and stenotic lesions (OR, 1.15; 95%CI, 1.01-1.31; P = .03). CONCLUSIONS AND RELEVANCE This cohort study suggests a significant association between the SARS-CoV-2 pandemic and the risk of a more advanced oncologic stage at diagnosis among patients undergoing surgery for colorectal cancer and might indicate a potential reduction of survival for these patients

    Clinical features and outcomes of elderly hospitalised patients with chronic obstructive pulmonary disease, heart failure or both

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    Background and objective: Chronic obstructive pulmonary disease (COPD) and heart failure (HF) mutually increase the risk of being present in the same patient, especially if older. Whether or not this coexistence may be associated with a worse prognosis is debated. Therefore, employing data derived from the REPOSI register, we evaluated the clinical features and outcomes in a population of elderly patients admitted to internal medicine wards and having COPD, HF or COPD + HF. Methods: We measured socio-demographic and anthropometric characteristics, severity and prevalence of comorbidities, clinical and laboratory features during hospitalization, mood disorders, functional independence, drug prescriptions and discharge destination. The primary study outcome was the risk of death. Results: We considered 2,343 elderly hospitalized patients (median age 81 years), of whom 1,154 (49%) had COPD, 813 (35%) HF, and 376 (16%) COPD + HF. Patients with COPD + HF had different characteristics than those with COPD or HF, such as a higher prevalence of previous hospitalizations, comorbidities (especially chronic kidney disease), higher respiratory rate at admission and number of prescribed drugs. Patients with COPD + HF (hazard ratio HR 1.74, 95% confidence intervals CI 1.16-2.61) and patients with dementia (HR 1.75, 95% CI 1.06-2.90) had a higher risk of death at one year. The Kaplan-Meier curves showed a higher mortality risk in the group of patients with COPD + HF for all causes (p = 0.010), respiratory causes (p = 0.006), cardiovascular causes (p = 0.046) and respiratory plus cardiovascular causes (p = 0.009). Conclusion: In this real-life cohort of hospitalized elderly patients, the coexistence of COPD and HF significantly worsened prognosis at one year. This finding may help to better define the care needs of this population

    Grafici di esercizi e Mathematica…realizzazione di un testo...

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    La visualizzazione grafica offre enormi potenzialità nel migliorare il processo di insegnamento-apprendimento di concetti matematici, spesso astratti e tediosi. È ben noto che, per la comprensione di concetti di Analisi Matematica, sia elementari come il segno di una disequazione, sia complessi come le regioni in cui è definita una funzione di più variabili, è talvolta necessario, se non indispensabile, una rappresentazione grafica. Da qui nasce l’esigenza di creare degli strumenti didattici che possano essere di aiuto agli studenti nello studio della matematica. Partendo dal detto comune anche l’occhio vuole la sua parte abbiamo cercato di rendere accattivanti le pagine di testi di esercizi di Analisi Matematica, usati alla Facoltà di Ingegneria dell’Università degli Studi di Salerno, grazie al prezioso ausilio di Mathematica. Lo scopo di questo lavoro è quello di mostrare come Mathematica possa essere usato per la realizzazione di routine che permettono di creare immagini particolarmente curate sia nella scelta delle direttive che in quella delle opzioni grafiche. Ogni volta gli argomenti lo hanno permesso, le pagine di esercizi, piene di formule e passaggi matematici, sono state arricchite da grafici: grafici di funzioni di una variabile, di domini di funzioni di due variabili, di curve, di domini di forme differenziali, di domini su cui vengono calcolati gli integrali doppi, dei volumi ottenuti dalla rotazione di domini, etc, ... In questo modo, i libri di esercizi realizzati sono diventati un mezzo per rendere lo studio della matematica meno tedioso e più piacevole. Anche la copertina di uno dei testi è stata realizzata con Mathematica, e riporta un oggetto grafico ottenuto dallo studio della convergenza di una serie di potenze
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