De Rango P.,University of Perugia |
Cao P.,Hospital S. Camillo Forlanini |
Cieri E.,University of Perugia |
Parlani G.,University of Perugia |
And 3 more authors.
Journal of Vascular Surgery | Year: 2012
Background: This study aims to investigate the impact of diabetes in the management of patients with small abdominal aortic aneurysms (AAA). Methods: Three-hundred sixty patients with small AAA (4.1-5.4 cm), enrolled in a randomized trial comparing early endovascular repair versus surveillance and delayed repair (after achievement of >5.5 cm or growth >1 cm/yr), were analyzed with standard survival methods to assess the relation between diabetes and risk of all-cause mortality, complications, and aneurysm growth (on computed tomography as per trial protocol) at 36 months. Baseline covariates were selected with partial likelihood stepwise method to investigate factors (demographic, morphologic, medications) associated with risk of aneurysm growth during surveillance. Results: Prevalence of diabetes was 13.6%. The hazard ratio (HR) for all-cause mortality at 36 months was higher in diabetic compared with nondiabetic patients: (HR, 7.39; 95% confidence interval [CI], 1.55-35.13; P =.012). Baseline aneurysm diameter was comparable between diabetic and nondiabetic patients enrolled in the surveillance arm and was related to subsequent aneurysm growth in covariance analyses adjusted for diabetes (49.3 mm for nondiabetic; 50.2 mm for diabetic). Cox analyses found diabetes as the strongest independent negative predictor of 63% lower probability of aneurysm growth >5 mm during surveillance (HR, 0.37; 95% CI, 0.15-0.92; P =.003). Kaplan-Meier cumulative probability of aneurysm growth >5 mm at 36 months was 40.8% in diabetics versus 85.1% in nondiabetics (HR, 0.32; 95% CI, 0.17-0.61). Conclusions: Progression of small AAA seems to be more than 60% lower in patients with diabetes. This may help to identify high-risk subgroups at higher likelihood of AAA enlargement, such as nondiabetics, for surveillance protocols in patients with small AAA. © 2012 Society for Vascular Surgery. Source
Ziegler R.,Diabetes Clinic for Children and Adolescents |
Tubili C.,Hospital S. Camillo Forlanini |
Chico A.,Hospital Santa Creu i Sant Pau |
Guerci B.,Hospital Brabois |
And 6 more authors.
Diabetes Technology and Therapeutics | Year: 2013
Background: Continuous subcutaneous insulin infusion (CSII) patients experience switches of pump systems on a regular basis. We investigated the impact of transition from older pumps to the Accu-Chek® Combo system (Roche Diagnostics Deutschland GmbH, Mannheim, Germany) on a patient's glycemic control and diabetes management. Patients and Methods: In total, 299 patients (172 female, 127 male; mean±SD age, 39.4±15.2 years; CSII duration, 7.0±5.2 years) were enrolled by 61 European sites into this uncontrolled prospective trial. Glycemic control, safety, and diabetes management parameters were measured at baseline and after 3 and 6 months. Changes from baseline were analyzed. Results: After transition to the new insulin pump, mean±SD hemoglobin A1c (HbA1c) values decreased from 7.8±1.1% (baseline) to 7.7±1.1% (end point). The proportion of patients with HbA1c <7.0% was slightly higher at the end of the study (29.6%) than at baseline (25.2%), whereas the proportion of patients with HbA1c >8.0% decreased (baseline, 36.2%; end point, 32.7%; P<0.05). The number of hypoglycemic episodes (blood glucose<70 mg/dL) improved slightly during the study (baseline, 40.4±34.0 events/quarter; end point, 39.2±33.9 events/quarter). Glycemic control improved significantly in the group with an initial HbA1c >8.0% (-0.46%; P<0.001) and remained solidly stable in the group with an initial HbA1c <7% (+0.04%; not significant). Short-Term (<3 years) pump users (n=48) had a larger HbA1c decrease (-0.40%) than long-Term (≥3 years) users (n=251) (-0.07%; P<0.05). The number of blood glucose measurements increased (3.7±1.9/day vs. 4.4±1.8/day; P<0.05), whereas the number of insulin boluses decreased (5.1±1.9/day vs. 4.6±1.5/day; P<0.05) during the study. Conclusions: Transition from older pump systems to the Accu-Chek Combo system in a large patient population resulted in stable glycemic control with significant improvements in HbA1c in patients with unsatisfactory baseline HbA1c and shorter pump use. Increased frequency of self-monitoring of blood glucose and decrease of bolus frequency could suggest a more confident diabetes management and a reduced need for correction boluses. © Copyright 2013, Mary Ann Liebert, Inc. 2013. Source
Ciccaglione A.R.,Parasitic and Immune mediated Diseases |
Miceli M.,Hospital S. Camillo Forlanini |
Pisani G.,Center for Immunobiologicals Research and Evaluation |
Bruni R.,Parasitic and Immune mediated Diseases |
And 16 more authors.
Journal of Clinical Microbiology | Year: 2010
The ability to detect HIV-2 and to discriminate between HIV-1 and HIV-2 infections was evaluated in 46 serum samples from Guinea-Bissau (GB) and Guinea-Conakry (GC) using serological tests and commercial (HIV-1) and in-house (HIV-2) real-time PCR assays. Samples were first identified as HIV-2 positive by Genie I/II assay in GB and GC. HIV positivity was detected in 44 of 46 samples by all screening and confirmatory assays. A diagnostic strategy based on Inno-LIA and HIV-1/2 RNA detection assays allowed accurate discrimination between HIV-1 and HIV-2 in 84% of single infections and confirmed 32% of double infections. In samples with double reactivity in the Inno-LIA test and no detection of both genomes, cross-reactivity likely hampered the identification of true double infections. In conclusion, the implementation of a diagnostic strategy, based on multiple specific serological tests and highly sensitive quantitative PCR assays, is recommended to ensure accurate HIV-2 diagnosis and appropriate therapy for individuals from areas in which the virus is endemic. Copyright © 2010, American Society for Microbiology. All Rights Reserved. Source
Brambilla M.,University Hospital Maggiore Della Carita |
Matheoud R.,University Hospital Maggiore Della Carita |
Basile C.,Hospital S. Camillo Forlanini |
Bracco C.,Institute for Cancer Research and Treatment IRCC |
And 15 more authors.
Computational and Mathematical Methods in Medicine | Year: 2015
Objective. The aim of this work was to assess robustness and reliability of an adaptive thresholding algorithm for the biological target volume estimation incorporating reconstruction parameters. Method. In a multicenter study, a phantom with spheres of different diameters (6.5-57.4 mm) was filled with 18F-FDG at different target-to-background ratios (TBR: 2.5-70) and scanned for different acquisition periods (2-5 min). Image reconstruction algorithms were used varying number of iterations and postreconstruction transaxial smoothing. Optimal thresholds (TS) for volume estimation were determined as percentage of the maximum intensity in the cross section area of the spheres. Multiple regression techniques were used to identify relevant predictors of TS. Results. The goodness of the model fit was high (R2: 0.74-0.92). TBR was the most significant predictor of TS. For all scanners, except the Gemini scanners, FWHM was an independent predictor of TS. Significant differences were observed between scanners of different models, but not between different scanners of the same model. The shrinkage on cross validation was small and indicative of excellent reliability of model estimation. Conclusions. Incorporation of postreconstruction filtering FWHM in an adaptive thresholding algorithm for the BTV estimation allows obtaining a robust and reliable method to be applied to a variety of different scanners, without scanner-specific individual calibration. © 2015 M. Brambilla et al. Source
Biancari F.,University of Oulu |
Ruggieri V.G.,Pontchaillou University Hospital |
Perrotti A.,University Hospital Jean Minjoz |
Svenarud P.,Karolinska University Hospital |
And 21 more authors.
Journal of Cardiothoracic Surgery | Year: 2015
Background: Clinical evidence in coronary surgery is usually derived from retrospective, single institutional series. This may introduce significant biases in the analysis of critical issues in the treatment of these patients. In order to avoid such methodological limitations, we planned a European multicenter, prospective study on coronary artery bypass grafting, the E-CABG registry. Design: The E-CABG registry is a multicenter study and its data are prospectively collected from 13 centers of cardiac surgery in university and community hospitals located in six European countries (England, Italy, Finland, France, Germany, Sweden). Data on major and minor immediate postoperative adverse events will be collected. Data on late all-cause mortality, stroke, myocardial infarction and repeat revascularization will be collected during a 10-year follow-up period. These investigators provided a score from 0 to 10 for any major postoperative adverse events and their rounded medians were used to stratify the severity of these complications in four grades. The sum of these scores for each complication/intervention occurring after coronary artery bypass grafting will be used as an additive score for further stratification of the prognostic importance of these events. Discussion: The E-CABG registry is expected to provide valuable data for identification of risk factors and treatment strategies associated with suboptimal outcome. These information may improve the safety and durability of coronary artery bypass grafting. The proposed classification of postoperative complications may become a valuable research tool to stratify the impact of such complications on the outcome of these patients and evaluate the burden of resources needed for their treatment. Clinical Trials number: NCT02319083. © 2015 Biancari et al. Source