Publications by authors named "Andrea Lopes Pegna"

Objectives: Overdiagnosis in low-dose computed tomography randomized screening trials varies from 0 to 67%. The National Lung Screening Trial (extended follow-up) and ITALUNG (Italian Lung Cancer Screening Trial) have reported cumulative incidence estimates at long-term follow-up showing low or no overdiagnosis. The Danish Lung Cancer Screening Trial attributed the high overdiagnosis estimate to a likely selection for risk of the active arm.

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Objectives: In the ITALUNG lung cancer screening trial after 9.3 years of follow-up we observed an unexpected significant decrease of cardiovascular (CV) mortality in subjects invited for low-dose CT (LDCT) screening as compared to controls undergoing usual care. Herein we extended the mortality follow-up and analyzed the potential factors underlying such a decrease.

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Background: Changes in smoking habits and predictors of smoking cessation were examined in the randomized ITALUNG lung cancer screening trial.

Methods: In three centers, eligible smokers or ex-smokers (55-69 years, ≥20 pack-years in the last 10 years) were randomized to receive annual invitation for low-dose computed tomography for 4 years or usual care. At invitation, subjects received written information for a free smoking cessation program.

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Occurrence of multiple primary lung cancers (MPLC) in individuals undergoing low-dose computed tomography (LDCT) screening has not been thoroughly addressed. We investigated MPLC in subjects recruited in the ITALUNG randomized clinical trial. Cases of cytologically/histologically proven MPLC detected at screening LDCT or follow-up CT were selected and pathologically re-evaluated according to the WHO 2015 classification.

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Asymptomatic high-risk subjects, randomized in the intervention arm of the ITALUNG trial (1,406 screened for lung cancer), were enrolled for the ITALUNG biomarker study (n = 1,356), in which samples of blood and sputum were analyzed for plasma DNA quantification (cut off 5 ng/ml), loss of heterozygosity and microsatellite instability. The ITALUNG biomarker panel (IBP) was considered positive if at least one of the two biomarkers included in the panel was positive. Subjects with and without lung cancer diagnosis at the end of the screening cycle with LDCT (n = 517) were evaluated.

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Background: ITALUNG is contributing to the European evaluation of low-dose CT (LDCT) screening for lung cancer (LC).

Methods: Eligible subjects aged 55-69 years, smokers or ex-smokers (at least 20 pack-years in the last 10 years), were randomised to receive an annual invitation for LDCT screening for 4 years (active group) or to usual care (control group). All participants were followed up for vital status and cause of death (at the end of 2014) and LC incidence (at the end of 2013).

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In approaching the asbestos-related diseases with CT, both the malignant diseases and the non-malignant disease are to be considered. In the recent publication of the Helsinki Criteria research activities are encouraged in the field of lung cancer screening with low-dose CT (LDCT) in exposed workers and initiatives of data pooling and study protocols standardization are stimulated. Herein, we propose a review of the literature in the light of the Helsinki statement focused on the different techniques of imaging with CT and on the different fields of application in the asbestos-related disease.

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Purpose: Timing and magnitude of blood release of circulating tumour cells (CTC) and circulating tumour microemboli (CTM) from primary solid cancers are uncertain. We investigated prevalence and number of CTC and CTM at diagnosis of advanced non-small cell lung cancer (NSCLC).

Methods: Twenty-eight consecutive patients with suspected stage III-IV lung cancer gave consent to provide 15 mL of peripheral blood soon before diagnostic CT-guided fine-needle aspiration biopsy (FNAB).

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Objective: This study aimed to define computed tomographic morphologic features of lung cancer associated with cystic airspaces, their modifications in serial computed tomographic scans, and 18F-fluoro-2-deoxy-D-glucose (FDG) positron emission tomography uptake.

Methods: Computed tomographic scans and 18F-FDG positron emission tomography in 24 patients with lung cancer (17 adenocarcinomas, 7 squamous cell carcinomas, 12 stage I and 12 stage II to IV) associated with cystic airspaces were reviewed.

Results: Mean diameter of airspace was initially 17.

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Objectives: To characterize early features of lung cancers detected with low-dose computed tomography (LDCT) screening.

Materials And Methods: Two radiologists reviewed prior LDCTs in 20 incident cancers diagnosed at annual repeat screening rounds and 83 benign nodules observed in the ITALUNG trial.

Results: No abnormality was observed in 3 cancers.

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Introduction: Recruitment and nodule management are critical issues of lung cancer screening with low-dose computed tomography (LDCT). We report subjects' compliance and results of LDCT screening and management protocol in the active arm of the ITALUNG trial.

Methods: Three thousand two hundred six smokers or former smokers invited by mail were randomized to receive four annual LDCT (n = 1613) or usual care (n = 1593).

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Objective: To evaluate the quality of patients care, a set of indicators of the standards of cancer care were defined.

Participants: We developed a set of indicators to assess the implementation in daily practice of recommendation produced by a regional network (Istituto Toscano Tumori). This set was tested in a retrospective study in the resident population of the Tuscany Region; the regional health system is organized on 12 local health authorities which refer to three macro areas (Area Vasta).

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Purpose: To evaluate with a volume-corrected whole-lung approach changes in lung density over 2 years consistent with progression of pulmonary emphysema in smokers and former smokers enrolled in the ITALUNG trial of lung cancer screening using low-dose computed tomography (LDCT).

Materials And Methods: A total of 103 subjects (mean age 63±4 y with a pack-year history of at least 20) underwent 2 whole-lung LDCT examinations 2 years apart. Visual assessment was made independently by 2 experienced observers on the initial LDCT examination with a 0 to 4 grading system for each of 6 regions (right and left upper, mid, and lower lung).

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The aim of this study was to evaluate the diagnostic value of a grid of molecular genetic markers detectable in sputum and plasma samples of individuals enrolled in a lung cancer screening program with low-dose CT. Subjects enrolled in the baseline screening round of the ITALUNG (randomised) screening trial were invited to provide biological specimens for molecular analysis (1356 subjects out of 1406). We included 98 subjects in this analysis.

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Purpose Of Review: Lung cancer is a health problem of global proportions. Despite intensive research over many years, the prognosis is still very poor. For the surgery to be effective, tumours need to be recognized early.

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We used the Tuscan Cancer Registry archives to retrieve records of 2,896 patients with a histological diagnosis of lung tumor from January 1996 to December 2000. Of 2,410 patients with non-small-cell lung cancer, 767 (31.8%) underwent complete resection.

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Background: Results of randomized clinical trials (RCTs) are needed to assess the efficacy of lung cancer screening with low-dose chest computed tomography (CT) in reducing lung cancer mortality. We report design and results of enrolment and baseline screening test in the ITALUNG trial, a RCT.

Methods: Invitation letters were sent to subjects of 55-69 years of age clients of 269 general practitioners.

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We assessed with computed tomography (CT) densitometry the prevalence of emphysema in 266 (175 men and 91 women; mean age 64 +/- 4 years) smokers and former smokers enrolled in the ITALUNG trial of lung cancer screening with low-dose thin-slice CT. Whole-lung volume and the relative area at -950 Hounsfield units (RA(950)) and mean lung attenuation (MLA) in 1 of every 10 slices (mean, 24 slices per subject) were measured. Lung volume, MLA and RA950 significantly correlated each other and with age.

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Background: Patients who have nonsmall cell lung cancer with N1 lymph node status are an intermediate group of patients who have a variable prognosis. Differences in lymph node level (hilar or pulmonary lymph nodes) may influence patient survival. The authors retrospectively analyzed the factors that influenced prognosis, including the level of N1 lymph node involvement.

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Objective: Prior analyses of X-ray exposures in lung cancer screening with CT considered the basic acquisition technique in single-detector scanners and the effects of a lifetime screening regimen, whereas the potential benefit in terms of lives saved was not addressed.

Materials And Methods: We determined the total-body effective dose of different acquisition techniques for one single-detector and one MDCT scanner and made projections about the cumulative radiation exposure to smokers undergoing four annual CT examinations on the same scanners in the Italung-CT Trial. Combining these data with estimates of radiation-induced fatal cancer and of the benefit of screening, we calculated the risk-benefit ratio for participants in the trial, ex-smokers, and never-smokers.

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