46 results on '"Pasian S"'
Search Results
2. A Case-Control Study on Occupational Risk Factors for Sino-Nasal Cancer
- Author
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d'Errico, A., Pasian, S., Baratti, A., Zanelli, R., Alfonzo, S., Gilardi, L., Beatrice, F., Bena, A., and Costa, G.
- Published
- 2009
- Full Text
- View/download PDF
3. A case-control study on occupational risk factors for sino-nasal cancer
- Author
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d’Errico, A, Pasian, S, Baratti, A, Zanelli, R, Alfonzo, S, Gilardi, L, Beatrice, F, Bena, A, and Costa, G
- Published
- 2009
- Full Text
- View/download PDF
4. OA 15.01 Lung Cancer Screening: Participant Selection by Risk Model – the Pan-Canadian Study
- Author
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Tammemägi, M., primary, Schmidt, H., additional, Martel, S., additional, Mcwilliams, A., additional, Goffin, J., additional, Johnston, M., additional, Goss, G., additional, Tremblay, A., additional, Bhatia, R., additional, Liu, G., additional, Soghrati, K., additional, Yasufuku, K., additional, Hwang, D., additional, Laberge, F., additional, Gingras, M., additional, Pasian, S., additional, Couture, C., additional, Mayo, J.R., additional, Fauerbach, P.V. Nasute, additional, Atkar-Khattra, S., additional, Peacock, S.J., additional, Cressman, S., additional, Ionescu, D., additional, English, J.C., additional, Finley, R.J., additional, Yee, J., additional, Puksa, S., additional, Stewart, L., additional, Tsai, S., additional, Haider, E., additional, Boylan, C., additional, Cutz, J., additional, Manos, D., additional, Xu, Z., additional, Nicholas, G., additional, Seely, J.M., additional, Amjadi, K., additional, Sekhon, H.S., additional, Burrowes, P., additional, Maceachern, P., additional, Urbanski, S., additional, Sin, D., additional, Tan, W.C., additional, Leighl, N., additional, Shepherd, F., additional, Evans, W., additional, Tsao, M., additional, and Lam, S., additional
- Published
- 2017
- Full Text
- View/download PDF
5. MA 14.11 Malignancy Risk Prediction of Pulmonary Nodule in Lung Cancer Screening – Diameter Or Volumetric Measurement
- Author
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Yuan, R., primary, Tammemägi, M., additional, Ritchie, A., additional, Dougherty, B., additional, Sanghera, C., additional, Jacobs, C., additional, Mayo, J.R., additional, Schmidt, H., additional, Gingras, M., additional, Pasian, S., additional, Stewart, L., additional, Tsai, S., additional, Manos, D., additional, Seely, J.M., additional, Burrowes, P., additional, Bhatia, R., additional, Atkar-Khattra, S., additional, Myers, R., additional, Tsao, M., additional, Van Ginneken, B., additional, and Lam, S., additional
- Published
- 2017
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6. Computer Vision Tool and Technician as First Reader of Lung Cancer Screening CT Scans
- Author
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Ritchie, A.J., Sanghera, C., Jacobs, C., Zhang, W., Mayo, J., Schmidt, H., Gingras, M., Pasian, S., Stewart, L., Tsai, S., Manos, D., Seely, J.M., Burrowes, P., Bhatia, R., Atkar-Khattra, S., Ginneken, B. van, Tammemagi, M., Tsao, M.S., Lam, S., et al., Ritchie, A.J., Sanghera, C., Jacobs, C., Zhang, W., Mayo, J., Schmidt, H., Gingras, M., Pasian, S., Stewart, L., Tsai, S., Manos, D., Seely, J.M., Burrowes, P., Bhatia, R., Atkar-Khattra, S., Ginneken, B. van, Tammemagi, M., Tsao, M.S., Lam, S., and et al.
- Abstract
Contains fulltext : 172195.pdf (Publisher’s version ) (Open Access), To implement a cost-effective low-dose computed tomography (LDCT) lung cancer screening program at the population level, accurate and efficient interpretation of a large volume of LDCT scans is needed. The objective of this study was to evaluate a workflow strategy to identify abnormal LDCT scans in which a technician assisted by computer vision (CV) software acts as a first reader with the aim to improve speed, consistency, and quality of scan interpretation.Without knowledge of the diagnosis, a technician reviewed 828 randomly batched scans (136 with lung cancers, 556 with benign nodules, and 136 without nodules) from the baseline Pan-Canadian Early Detection of Lung Cancer Study that had been annotated by the CV software CIRRUS Lung Screening (Diagnostic Image Analysis Group, Nijmegen, The Netherlands). The scans were classified as either normal (no nodules \geq1 mm or benign nodules) or abnormal (nodules or other abnormality). The results were compared with the diagnostic interpretation by Pan-Canadian Early Detection of Lung Cancer Study radiologists.The overall sensitivity and specificity of the technician in identifying an abnormal scan were 97.8\% (95\% confidence interval: 96.4-98.8) and 98.0\% (95\% confidence interval: 89.5-99.7), respectively. Of the 112 prevalent nodules that were found to be malignant in follow-up, 92.9\% were correctly identified by the technician plus CV compared with 84.8\% by the study radiologists. The average time taken by the technician to review a scan after CV processing was 208 ± 120 seconds.Prescreening CV software and a technician as first reader is a promising strategy for improving the consistency and quality of screening interpretation of LDCT scans.
- Published
- 2016
7. Indicators predicting use of mental health services in Piedmont, Italy
- Author
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Tibaldi, G., Munizza, C., Pasian, S., Johnson, S., Luis Salvador-Carulla, Zucchi, S., Cesano, S., Testa, C., Scala, E., and Pinciaroli, L.
- Abstract
Since the 1978 Italian reform, an integrated network of community mental health services has been introduced. With few exceptions, research on determinants of mental health service use at the district level has focused on inpatient activities and social deprivation indicators. The European Psychiatric Care Assessment Team (EPCAT) standardized methodology allows for an evidence-based comparison of mental health systems between geographical areas.
- Published
- 2005
8. Método de rehabilitación sensitiva del dolor
- Author
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Quintal, I., primary, Noël, L., additional, Gable, C., additional, Delaquaize, F., additional, Bret-Pasian, S., additional, Rossier, P., additional, Annoni, J.-M., additional, Maupas, E., additional, and Spicher, C.-J., additional
- Published
- 2013
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9. Méthode de rééducation sensitive de la douleur
- Author
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Quintal, I., primary, Noël, L., additional, Gable, C., additional, Delaquaize, F., additional, Bret-Pasian, S., additional, Rossier, P., additional, Annoni, J.-M., additional, Maupas, E., additional, and Spicher, C.-J., additional
- Published
- 2013
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10. Etude de fiabilite d’un logiciel de volumetrie automatisee de nodules pulmonaires utilisant un fantome anthropomorphique
- Author
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Hoang, D., primary, Samson, L., additional, Chartrand-Lefèbvre, C., additional, Cordeau, M., additional, Pouliot, M., additional, Chalaoui, J., additional, and Pasian, S., additional
- Published
- 2007
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11. Des formes reticulees de presentation echographique des hepatites virales
- Author
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Guimarāes, R., primary, Pasian, S., additional, Padilha, I., additional, Bidóia, R., additional, Stawinski, J., additional, Limissuri, I., additional, Passos, M., additional, Mársico, R., additional, and Name, C., additional
- Published
- 2004
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12. Qualidades psicométricas das UWES em bombeiros portugueses [Psychometric qualities of UWES among Portuguese firefighters]
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Jorge Sinval, Vara, N., Queirós, C., Pasian, S., and Maroco, J.
13. Identifying and validating emotion regulation latent profiles and their relationship with affective variables.
- Author
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de Carvalho Braule Pinto AL, R Pasian S, and F Malloy-Diniz L
- Subjects
- Adult, Cross-Sectional Studies, Emotions, Humans, Surveys and Questionnaires, Emotional Regulation
- Abstract
Objective: We investigated and validated the presence of emotion regulation profiles in an adult sample., Method: In a cross-sectional study, 1165 individuals completed the Emotion Regulation Questionnaire (ERQ), Difficulties in Emotion Regulation Scale (DERS), Positive and Negative Affect Scale (PANAS), and Following Affective States Test (FAST). Sample was divided into three to establish and validate emotion regulation profiles using a latent profile analysis., Results: Sample 1 (n = 375) showed three different profiles: dysregulated, adapted, and unaware regulator. Sample 2 (n = 390) shows a consistent pattern with the same number of profiles that remained stable over time. In Sample 3 (n = 400), we validate and find that cognitive reappraisal and lack of awareness were essential to differentiating profiles., Conclusions: Three emotional regulation profiles differ due to the levels of positive/negative affect and the propensity to avoid/follow emotions, increasing the understanding of how different regulatory strategies interact and explain different outcomes with mental health., (© 2021 Wiley Periodicals LLC.)
- Published
- 2022
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14. Ultrasound-guided transthoracic needle biopsy of the lung: sensitivity and safety variables.
- Author
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Lemieux S, Kim T, Pothier-Piccinin O, Racine LC, Firoozi F, Drolet M, Pasian S, Kennedy KF, Provencher S, and Ugalde P
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- Biopsy, Needle, Humans, Image-Guided Biopsy, Lung, Retrospective Studies, Tomography, X-Ray Computed, Ultrasonography, Interventional, Lung Neoplasms, Pneumothorax etiology
- Abstract
Objectives: Variables affecting the performance of ultrasound-guided transthoracic needle biopsy (US-TTNB) are not well established. We examined clinical and imaging variables affecting the sensitivity and the complication rates of US-TTNB., Methods: We retrospectively reviewed a consecutive series of 528 US-TTNBs performed from 2008 to 2017. Univariate analyses were used to assess the influence of clinical and imaging variables on sensitivity and complication rates. Multivariate logistic regression was used to account for possible confounding variables., Results: In 397 malignant lesions, the sensitivity of US-TTNB was 72% (95% CI 68-77%; 285/397). The overall pneumothorax rate was 15% (95% CI 12-18%; 77/528), leading to a chest tube in 2% (95% CI 1-3%; 9/528). Multivariate analysis showed that increasing pleural contact length (up to 30 mm) was associated with increased sensitivity (OR 1.08 per mm; 95% CI 1.04-1.12; p < 0.001), and pleural contact length (OR 0.98 per mm; 95% CI 0.97-0.99; p = 0.013), lesion size (OR 0.98 per mm; 95% CI 0.96-0.99; p = 0.006), and core needle diameter of 18G (OR 0.47 as compared with 20G; 95% CI 0.26-0.83; p = 0.010) were associated with a decreased pneumothorax rate. Graphical inspection of cubic splines showed that the probability of a positive biopsy rose sharply with increasing pleural contact length up to 30 mm and was stable thereafter. A similar, but inverse, relationship was observed for the probability of a pneumothorax., Conclusion: Pleural contact length is a key variable predicting the sensitivity of US-TTNB and pneumothorax rate after US-TTNB. Lesion size also predicts pneumothorax rates., Key Points: • US-TTNB has a high sensitivity and a low complication rate for pleural and pulmonary lesions with pleural contact. • Pleural contact length is a key variable predicting the sensitivity of US-TTNB and pneumothorax rate after US-TTNB. • This study suggests that relying on US-TTNB may not be optimal for lesions < 10 mm for which the risk of pneumothorax is as high as the chance of obtaining diagnosis., (© 2021. European Society of Radiology.)
- Published
- 2021
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15. Cerebral Embolism After Transcarotid Transcatheter Aortic Valve Replacement: Factors Associated With Ipsilateral Ischemic Burden.
- Author
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Faroux L, Junquera L, Mohammadi S, Kalavrouziotis D, Dumont E, Paradis JM, Delarochellière R, Del Val D, Muntané-Carol G, Pasian S, Ferreira-Neto AN, Pelletier-Beaumont E, and Rodés-Cabau J
- Subjects
- Aged, Aged, 80 and over, Brain Ischemia diagnosis, Diffusion Magnetic Resonance Imaging, Female, Humans, Incidence, Intracranial Embolism diagnosis, Intracranial Embolism epidemiology, Male, Prospective Studies, Quebec epidemiology, Risk Factors, Time Factors, Aortic Valve surgery, Aortic Valve Stenosis surgery, Brain Ischemia complications, Intracranial Embolism etiology, Postoperative Complications, Risk Assessment methods, Transcatheter Aortic Valve Replacement adverse effects
- Abstract
Background: Transcarotid transcatheter aortic valve replacement (TAVR) recipients may be exposed to a higher ipsilateral subclinical cerebral ischemic burden compared with the contralateral hemisphere. We sought (1) to compare the cerebral ischemic burden of the 2 hemispheres after transcarotid TAVR, as evaluated by diffusion weighted-magnetic resonance imaging (DW-MRI), and (2) to identify the factors associated with ipsilateral ischemic burden., Methods: This prospective study included 52 patients undergoing transcarotid TAVR, followed by a DW-MRI examination. All DW-MRIs were analyzed offline by a radiologist blinded to the clinical data., Results: TAVR was performed through the left (n = 50) or right (n = 2) carotid artery. Procedural success was achieved in all patients, carotid dissection requiring patch closure occurred in 1 patient, and there were no periprocedural stroke events. At least 1 cerebral ischemic lesion was identified in the ipsilateral and contralateral hemisphere in 84.6% and 63.5% of patients, respectively (P = .005), and the number of ischemic lesions per patient was higher in the ipsilateral vs the contralateral hemisphere (2 [interquartile range, 1-5] vs 1 [interquartile range, 0-3], P = .005). The lesion volume (per lesion) and the average lesion volume (per patient) did not differ between the 2 hemispheres. A larger sheath/catheter size (≥18F vs ≤16F) was associated with a higher ipsilateral ischemic burden (P = .026)., Conclusions: Carotid artery access for TAVR was associated with a higher number of cerebral ischemic lesions in the ipsilateral (vs contralateral) cerebral hemisphere. The use of a larger sheath/delivery system (≥18F) was associated with an increased ipsilateral ischemic burden., (Copyright © 2021 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved.)
- Published
- 2021
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16. Multimodality evaluation of transcatheter structural valve degeneration at long-term follow-up.
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Ferreira-Neto AN, Rodriguez-Gabella T, Guimaraes L, Freitas-Ferraz A, Bernier M, Figueiredo Guimaraes C, Pasian S, Paradis JM, Delarochellière R, Dumont E, Mohammadi S, Kalavrouziotis D, Côté M, Pibarot P, and Rodés-Cabau J
- Subjects
- Aortic Valve diagnostic imaging, Aortic Valve surgery, Follow-Up Studies, Heart Valve Prosthesis, Hemodynamics, Humans, Prosthesis Design, Treatment Outcome, Aortic Valve Stenosis diagnosis, Aortic Valve Stenosis surgery, Heart Valve Prosthesis Implantation, Transcatheter Aortic Valve Replacement
- Abstract
Introduction and Objectives: We assessed the long-term hemodynamic performance of transcatheter heart valve (THV) by paired transthoracic echocardiography (TTE), and the incidence, characteristics and factors associated with THV structural valve degeneration (SVD)., Methods: A total of 212 patients who underwent transcatheter aortic valve replacement and had a potential follow-up >5 years with at least 1 TTE ≥ 1-year postprocedure were included. All patients had a TTE at 1 to 5 years and 36 had another one at 6 to 10 years. SVD was defined as subclinical (increase >10mmHg in mean transvalvular gradient+decrease >0.3cm
2 in valve area and/or new-onset mild or moderate aortic regurgitation) and clinically relevant (increase> 20mmHg in mean transvalvular gradient+decrease> 0.6cm2 in valve area and/or new-onset moderate-to-severe aortic regurgitation). Fifteen patients had a transesophageal echocardiography at the time of SVD diagnosis, and 85 an opportunistic computed tomography examination at 1 (0.5-2) years., Results: Transvalvular mean gradient increased and valve area decreased over time (P<.01). At 8 years of follow-up, SVD occurred in 30.2% of patients (clinically relevant: 9.3%). Transesophageal echocardiography revealed thickened and reduced-mobility leaflets in 80% and 73% of SVD cases, respectively. No baseline or procedural factors were associated with SVD. THV underexpansion (3.5%) or eccentricity (8.2%) had no impact on valve hemodynamics/SVD at follow-up., Conclusions: A gradual THV hemodynamic deterioration occurred throughout a 10-year period, leading to SVD in ∼30% of patients (clinically relevant in < 10%). Leaflet morphology/mobility were frequently impaired in SVD cases, but THV geometry did not influence valve hemodynamics or SVD., (Copyright © 2020 Sociedad Española de Cardiología. Published by Elsevier España, S.L.U. All rights reserved.)- Published
- 2021
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17. Interaction Between Balloon-Expandable Valves and Coronary Ostia: Angiographic Analysis and Impact on Coronary Access.
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Faroux L, Couture T, Guimaraes C, Junquera L, Del Val D, Muntané-Carol G, Wintzer-Wehekind J, Mohammadi S, Paradis JM, Delarochellière R, Kalavrouziotis D, Dumont E, Pasian S, and Rodés-Cabau J
- Subjects
- Aortic Valve diagnostic imaging, Aortic Valve surgery, Aortic Valve Stenosis diagnosis, Aortic Valve Stenosis surgery, Cardiac Catheterization, Humans, Prosthesis Design, Treatment Outcome, Heart Valve Prosthesis, Transcatheter Aortic Valve Replacement adverse effects
- Abstract
Objectives: We sought to evaluate the position of balloon-expandable valves in relation to the coronary ostia using an angiographic- and computed tomography (CT)-based analysis, and to determine the impact of valve position on coronary angiography (CA)/percutaneous coronary intervention (PCI) feasibility and results., Methods: A total of 533 patients who received a Sapien XT or Sapien 3 valve were included in the angiographic analysis. Of these, 49 benefited from an opportunistic electrocardiography-gated CT after transcatheter aortic valve replacement (TAVR) and were included in the CT analysis., Results: Regarding the left coronary artery (LCA) ostium, the top of the transcatheter heart valve (THV) frame was infraostial in 49% of cases, and the valve totally covered the LCA ostium in 27% of patients. The stent frame of the Sapien 3 valve completely covered the LCA ostium more frequently than the Sapien XT valve (43% vs 12%, respectively; P<.001) and the relative implantation depth was significantly less ventricular in the Sapien 3 group than in the Sapien XT group (28.0 ± 12.3% vs 36.8 ± 12.6%, respectively; P<.001). The CT evaluation found similar results to angiographic evaluation. A total of 53 patients (10%) underwent CA (± PCI) following TAVR, and valve position did not influence CA performance/quality and PCI results., Conclusions: The stent frame of balloon-expandable Sapien valves exceeded the coronary ostia in about one-fourth of patients, and this percentage was >40% with the new-generation Sapien 3 valve. However, THV position did not affect the feasibility, quality, and results of CA/PCI post TAVR.
- Published
- 2020
18. Prediction of lung cancer risk at follow-up screening with low-dose CT: a training and validation study of a deep learning method.
- Author
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Huang P, Lin CT, Li Y, Tammemagi MC, Brock MV, Atkar-Khattra S, Xu Y, Hu P, Mayo JR, Schmidt H, Gingras M, Pasian S, Stewart L, Tsai S, Seely JM, Manos D, Burrowes P, Bhatia R, Tsao MS, and Lam S
- Subjects
- Aged, Algorithms, Double-Blind Method, Female, Humans, Male, Middle Aged, Risk Assessment, Deep Learning, Early Detection of Cancer, Lung Neoplasms diagnosis, Tomography, X-Ray Computed methods
- Abstract
Background: Current lung cancer screening guidelines use mean diameter, volume or density of the largest lung nodule in the prior computed tomography (CT) or appearance of new nodule to determine the timing of the next CT. We aimed at developing a more accurate screening protocol by estimating the 3-year lung cancer risk after two screening CTs using deep machine learning (ML) of radiologist CT reading and other universally available clinical information., Methods: A deep machine learning (ML) algorithm was developed from 25,097 participants who had received at least two CT screenings up to two years apart in the National Lung Screening Trial. Double-blinded validation was performed using 2,294 participants from the Pan-Canadian Early Detection of Lung Cancer Study (PanCan). Performance of ML score to inform lung cancer incidence was compared with Lung-RADS and volume doubling time using time-dependent ROC analysis. Exploratory analysis was performed to identify individuals with aggressive cancers and higher mortality rates., Findings: In the PanCan validation cohort, ML showed excellent discrimination with a 1-, 2- and 3-year time-dependent AUC values for cancer diagnosis of 0·968±0·013, 0·946±0·013 and 0·899±0·017. Although high ML score cohort included only 10% of the PanCan sample, it identified 94%, 85%, and 71% of incident and interval lung cancers diagnosed within 1, 2, and 3 years, respectively, after the second screening CT. Furthermore, individuals with high ML score had significantly higher mortality rates (HR=16·07, p<0·001) compared to those with lower risk., Interpretation: ML tool that recognizes patterns in both temporal and spatial changes as well as synergy among changes in nodule and non-nodule features may be used to accurately guide clinical management after the next scheduled repeat screening CT.
- Published
- 2019
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19. Transcultural Adaptation of the Oldenburg Burnout Inventory (OLBI) for Brazil and Portugal.
- Author
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Sinval J, Queirós C, Pasian S, and Marôco J
- Abstract
During the last few years, burnout has gained more and more attention for its strong connection with job performance, absenteeism, and presenteeism. It is a psychological phenomenon that depends on occupation, also presenting differences between sexes. However, to properly compare the burnout levels of different groups, a psychometric instrument with adequate validity evidence should be selected (i.e., with measurement invariance). This paper aims to describe the psychometric properties of the Oldenburg Burnout Inventory (OLBI) version adapted for workers from Brazil and Portugal, and to compare burnout across countries and sexes. OLBI's validity evidence based on the internal structure (dimensionality, reliability, and measurement invariance), and validity evidence based on relationships with other variables (work engagement) are described. Additionally, it aims presents a revision of different OLBI's versions-since this is the first version of the instrument developed simultaneously for both countries-it is an important instrument for understanding burnout between sexes in organizations. Data were used from 1,172 employees across two independent samples, one from Portugal and the other from Brazil, 65 percent being female. Regarding the OLBI internal structure, a reduced version (15 items) was obtained. The high correlation between disengagement and exhaustion, suggested the existence of a second-order latent factor, burnout, which presented measurement invariance for country and sex. Confirmatory factor analysis of the Portuguese OLBI version presented good goodness-of-fit indices and good internal consistency values. No statistically significant differences were found in burnout between sexes or countries. OLBI also showed psychometric properties that make it a promising and freely available instrument to measure and compare burnout levels of Portuguese and Brazilian employees.
- Published
- 2019
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20. Predicting Malignancy Risk of Screen-Detected Lung Nodules-Mean Diameter or Volume.
- Author
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Tammemagi M, Ritchie AJ, Atkar-Khattra S, Dougherty B, Sanghera C, Mayo JR, Yuan R, Manos D, McWilliams AM, Schmidt H, Gingras M, Pasian S, Stewart L, Tsai S, Seely JM, Burrowes P, Bhatia R, Haider EA, Boylan C, Jacobs C, van Ginneken B, Tsao MS, and Lam S
- Subjects
- Aged, Area Under Curve, Early Detection of Cancer methods, Female, Humans, Male, Middle Aged, Multicenter Studies as Topic, Predictive Value of Tests, ROC Curve, Radiation Dosage, Risk Assessment, Tomography, X-Ray Computed methods, Lung Neoplasms diagnostic imaging, Lung Neoplasms pathology, Multiple Pulmonary Nodules diagnostic imaging, Multiple Pulmonary Nodules pathology, Radiographic Image Interpretation, Computer-Assisted, Solitary Pulmonary Nodule diagnostic imaging, Solitary Pulmonary Nodule pathology, Tumor Burden
- Abstract
Objective: In lung cancer screening practice low-dose computed tomography, diameter, and volumetric measurement have been used in the management of screen-detected lung nodules. The aim of this study was to compare the performance of nodule malignancy risk prediction tools using diameter or volume and between computer-aided detection (CAD) and radiologist measurements., Methods: Multivariable logistic regression models were prepared by using data from two multicenter lung cancer screening trials. For model development and validation, baseline low-dose computed tomography scans from the Pan-Canadian Early Detection of Lung Cancer Study and a subset of National Lung Screening Trial (NLST) scans with lung nodules 3 mm or more in mean diameter were analyzed by using the CIRRUS Lung Screening Workstation (Radboud University Medical Center, Nijmegen, the Netherlands). In the NLST sample, nodules with cancer had been matched on the basis of size to nodules without cancer., Results: Both CAD-based mean diameter and volume models showed excellent discrimination and calibration, with similar areas under the receiver operating characteristic curves of 0.947. The two CAD models had predictive performance similar to that of the radiologist-based model. In the NLST validation data, the CAD mean diameter and volume models also demonstrated excellent discrimination: areas under the curve of 0.810 and 0.821, respectively. These performance statistics are similar to those of the Pan-Canadian Early Detection of Lung Cancer Study malignancy probability model with use of these data and radiologist-measured maximum diameter., Conclusion: Either CAD-based nodule diameter or volume can be used to assist in predicting a nodule's malignancy risk., (Copyright © 2018 International Association for the Study of Lung Cancer. Published by Elsevier Inc. All rights reserved.)
- Published
- 2019
- Full Text
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21. Transcatheter Tricuspid Valve Replacement for Treating Severe Tricuspid Regurgitation: Initial Experience With the NaviGate Bioprosthesis.
- Author
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Asmarats L, Dagenais F, Bédard E, Pasian S, Hahn RT, Navia JL, and Rodés-Cabau J
- Subjects
- Aged, Echocardiography, Transesophageal, Humans, Male, Prosthesis Design, Severity of Illness Index, Tomography, X-Ray Computed, Tricuspid Valve diagnostic imaging, Tricuspid Valve Insufficiency diagnosis, Bioprosthesis, Cardiac Catheterization methods, Heart Valve Prosthesis Implantation methods, Tricuspid Valve surgery, Tricuspid Valve Insufficiency surgery
- Abstract
Despite the growing evidence with emerging transcatheter tricuspid valve repair therapies, the experience with transcatheter tricuspid valve replacement remains sparse. We describe a case of severe tricuspid regurgitation in a 79-year-old patient deemed unsuitable for isolated tricuspid valve surgery, successfully treated with a 40-mm self-expandable NaviGate (NaviGate Cardiac Structures, Inc, Lake Forest, CA) valved stent via a transatrial approach, with excellent result and hemodynamic performance at 4 months., (Copyright © 2018 Canadian Cardiovascular Society. Published by Elsevier Inc. All rights reserved.)
- Published
- 2018
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22. Brazil-Portugal Transcultural Adaptation of the UWES-9: Internal Consistency, Dimensionality, and Measurement Invariance.
- Author
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Sinval J, Pasian S, Queirós C, and Marôco J
- Abstract
The aim of this paper is to present a revision of international versions of the Utrecht Work Engagement Scale and to describe the psychometric properties of a Portuguese version of the UWES-9 developed simultaneously for Brazil and Portugal, the validity evidence related with the internal structure, namely, Dimensionality, measurement invariance between Brazil and Portugal, and Reliability of the scores. This is the first UWES version developed simultaneously for both countries, and it is an important instrument for understanding employees' work engagement in the organizations, allowing human resources departments to better use workforces, especially when they are migrants. A total of 524 Brazilian workers and 522 Portuguese workers participated in the study. Confirmatory Factor Analysis, group comparisons, and Reliability estimates were used. The use of workers who were primarily professionals or administrative support, according to ISCO-08, reinforced the need to collect data on other professional occupations. Confirmatory factor analysis showed acceptable fit for the UWES-9 original three-factor solution, and a second-order factor structure has been proposed that presented an acceptable fit. Full-scale invariance was obtained between the Portuguese and Brazilian samples, both for the original three-factor first-order and second-order models. Data revealed that Portuguese and Brazilian workers didn't show statistically significant differences in the work engagement dimensions. This version allows for direct comparisons of means and, consequently, for performance of comparative and cross-cultural studies between these two countries.
- Published
- 2018
- Full Text
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23. Transcatheter valve-in-valve overexpansion for treating a large dysfunctional tricuspid bioprosthesis.
- Author
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Asmarats L, Houde C, Pasian S, and Rodés-Cabau J
- Subjects
- Aged, Female, Humans, Prosthesis Design, Prosthesis Failure, Bioprosthesis, Cardiac Catheterization, Heart Valve Prosthesis, Heart Valve Prosthesis Implantation, Tricuspid Valve Insufficiency surgery
- Abstract
Transcatheter valve-in-valve implantation within dysfunctional surgical bioprosthesis has become an alternative to redo open-heart surgery. However, suitability for valve-in-valve implantation in the tricuspid position is often limited by large surgical valve sizes. We report a case of a transcatheter tricuspid valve-in-valve implantation with a 29-mm balloon-expandable prosthesis within a 33-mm failed bioprosthesis (exceeding manufacturer's sizing recommendations). Overexpansion of a 29-mm SAPIEN XT valve by 1-ml overfilling of the deployment balloon was successfully performed, with no valve dislocation/embolization or residual tricuspid regurgitation. This case illustrates the feasibility of tricuspid valve-in-valve procedures in selected patients with large failed tricuspid bioprostheses.
- Published
- 2018
- Full Text
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24. Cerebral Embolism Following Transcarotid Transcatheter Aortic Valve Replacement.
- Author
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Chamandi C, Mohammadi S, Dumont E, Doyle D, DeLarochellière R, Paradis JM, Puri R, Pasian S, Pelletier-Beaumont É, and Rodés-Cabau J
- Subjects
- Aged, Female, Heart Valve Prosthesis, Humans, Male, Mental Status and Dementia Tests, Perioperative Care methods, Risk Assessment methods, Treatment Outcome, Aortic Valve surgery, Aortic Valve Stenosis surgery, Carotid Arteries surgery, Catheterization, Peripheral adverse effects, Catheterization, Peripheral methods, Intracranial Embolism diagnosis, Intracranial Embolism etiology, Magnetic Resonance Imaging methods, Postoperative Complications diagnosis, Transcatheter Aortic Valve Replacement adverse effects, Transcatheter Aortic Valve Replacement methods
- Published
- 2018
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25. Participant selection for lung cancer screening by risk modelling (the Pan-Canadian Early Detection of Lung Cancer [PanCan] study): a single-arm, prospective study.
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Tammemagi MC, Schmidt H, Martel S, McWilliams A, Goffin JR, Johnston MR, Nicholas G, Tremblay A, Bhatia R, Liu G, Soghrati K, Yasufuku K, Hwang DM, Laberge F, Gingras M, Pasian S, Couture C, Mayo JR, Nasute Fauerbach PV, Atkar-Khattra S, Peacock SJ, Cressman S, Ionescu D, English JC, Finley RJ, Yee J, Puksa S, Stewart L, Tsai S, Haider E, Boylan C, Cutz JC, Manos D, Xu Z, Goss GD, Seely JM, Amjadi K, Sekhon HS, Burrowes P, MacEachern P, Urbanski S, Sin DD, Tan WC, Leighl NB, Shepherd FA, Evans WK, Tsao MS, and Lam S
- Subjects
- Age Distribution, Aged, Area Under Curve, Canada epidemiology, Cohort Studies, Female, Humans, Incidence, Male, Middle Aged, Neoplasm Invasiveness pathology, Neoplasm Staging, Predictive Value of Tests, Prospective Studies, Risk Adjustment, Risk Assessment, Sex Distribution, Survival Analysis, Early Detection of Cancer methods, Lung Neoplasms diagnostic imaging, Lung Neoplasms epidemiology, Patient Selection, Tomography, X-Ray Computed methods
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Background: Results from retrospective studies indicate that selecting individuals for low-dose CT lung cancer screening on the basis of a highly predictive risk model is superior to using criteria similar to those used in the National Lung Screening Trial (NLST; age, pack-year, and smoking quit-time). We designed the Pan-Canadian Early Detection of Lung Cancer (PanCan) study to assess the efficacy of a risk prediction model to select candidates for lung cancer screening, with the aim of determining whether this approach could better detect patients with early, potentially curable, lung cancer., Methods: We did this single-arm, prospective study in eight centres across Canada. We recruited participants aged 50-75 years, who had smoked at some point in their life (ever-smokers), and who did not have a self-reported history of lung cancer. Participants had at least a 2% 6-year risk of lung cancer as estimated by the PanCan model, a precursor to the validated PLCOm2012 model. Risk variables in the model were age, smoking duration, pack-years, family history of lung cancer, education level, body-mass index, chest x-ray in the past 3 years, and history of chronic obstructive pulmonary disease. Individuals were screened with low-dose CT at baseline (T0), and at 1 (T1) and 4 (T4) years post-baseline. The primary outcome of the study was incidence of lung cancer. This study is registered with ClinicalTrials.gov, number NCT00751660., Findings: 7059 queries came into the study coordinating centre and were screened for PanCan risk. 15 were duplicates, so 7044 participants were considered for enrolment. Between Sept 24, 2008, and Dec 17, 2010, we recruited and enrolled 2537 eligible ever-smokers. After a median follow-up of 5·5 years (IQR 3·2-6·1), 172 lung cancers were diagnosed in 164 individuals (cumulative incidence 0·065 [95% CI 0·055-0·075], incidence rate 138·1 per 10 000 person-years [117·8-160·9]). There were ten interval lung cancers (6% of lung cancers and 6% of individuals with cancer): one diagnosed between T0 and T1, and nine between T1 and T4. Cumulative incidence was significantly higher than that observed in NLST (4·0%; p<0·0001). Compared with 593 (57%) of 1040 lung cancers observed in NLST, 133 (77%) of 172 lung cancers in the PanCan Study were early stage (I or II; p<0·0001)., Interpretation: The PanCan model was effective in identifying individuals who were subsequently diagnosed with early, potentially curable, lung cancer. The incidence of cancers detected and the proportion of early stage cancers in the screened population was higher than observed in previous studies. This approach should be considered for adoption in lung cancer screening programmes., Funding: Terry Fox Research Institute and Canadian Partnership Against Cancer., (Copyright © 2017 Elsevier Ltd. All rights reserved.)
- Published
- 2017
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26. Giant Left Atrial Appendage Aneurysm Mimicking Mediastinal Mass and Associated with Incessant Atrial Arrhythmias.
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Morin J, Cantin L, Pasian S, Philippon F, and Beaudoin J
- Abstract
Left atrial appendage aneurysm (LAAA) is a rare entity. Clinical manifestations include arrhythmias and systemic embolization. We show here an example of a large and ectopic LAAA mimicking a mediastinal mass on chest X-ray and presenting with incessant atrial arrhythmias. Subsequent investigations leading to the correct diagnosis are described.
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- 2017
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27. Cardiovascular Magnetic Resonance to Evaluate Aortic Regurgitation After Transcatheter Aortic Valve Replacement.
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Ribeiro HB, Orwat S, Hayek SS, Larose É, Babaliaros V, Dahou A, Le Ven F, Pasian S, Puri R, Abdul-Jawad Altisent O, Campelo-Parada F, Clavel MA, Pibarot P, Lerakis S, Baumgartner H, and Rodés-Cabau J
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- Aged, Aortic Valve surgery, Aortic Valve Insufficiency etiology, Echocardiography, Doppler, Female, Follow-Up Studies, Humans, Male, Prognosis, ROC Curve, Reproducibility of Results, Time Factors, Aortic Valve diagnostic imaging, Aortic Valve Insufficiency diagnosis, Aortic Valve Stenosis surgery, Magnetic Resonance Imaging, Cine methods, Postoperative Complications, Transcatheter Aortic Valve Replacement adverse effects
- Abstract
Background: Residual aortic regurgitation (AR) following transcatheter aortic valve replacement (TAVR) is associated with greater mortality; yet, determining AR severity post-TAVR using Doppler echocardiography remains challenging. Cardiovascular magnetic resonance (CMR) is purported as a more accurate means of quantifying AR; however, no data exist regarding the prognostic value of AR as assessed by CMR post-TAVR., Objectives: This study sought to evaluate the effect of AR assessed with CMR on clinical outcomes post-TAVR., Methods: We included 135 patients from 3 centers. AR was quantified using regurgitant fraction (RF) measured by phase-contrast velocity mapping CMR at a median of 40 days post-TAVR, and using Doppler echocardiography at a median of 6 days post-TAVR. Median follow-up was 26 months. Clinical outcomes included mortality and rehospitalization for heart failure., Results: Moderate-severe AR occurred in 17.1% and 12.8% of patients as measured by echocardiography and CMR, respectively. Higher RF post-TAVR was associated with increased mortality (hazard ratio: 1.18 for each 5% increase in RF [95% confidence interval: 1.08 to 1.30]; p < 0.001) and the combined endpoint of mortality and rehospitalization for heart failure (hazard ratio: 1.19 for each 5% increase in RF; 95% confidence interval: 1.15 to 1.23; p < 0.001). Prediction models yielded significant incremental predictive value; CMR performed a median of 40 days post-TAVR had a greater association with post-TAVR clinical events compared with early echocardiography (p < 0.01). RF ≥30% best predicted poorer clinical outcomes (p < 0.001 for either mortality or the combined endpoint of mortality and heart failure rehospitalization)., Conclusions: Worse CMR-quantified AR was associated with increased mortality and poorer clinical outcomes following TAVR. Quantifying AR with CMR may identify patients with AR who could benefit from additional treatment measures., (Copyright © 2016 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.)
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- 2016
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28. Self-expanding Portico Valve Versus Balloon-expandable SAPIEN XT Valve in Patients With Small Aortic Annuli: Comparison of Hemodynamic Performance.
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Del Trigo M, Dahou A, Webb JG, Dvir D, Puri R, Abdul-Jawad Altisent O, Campelo-Parada F, Thompson C, Leipsic J, Stub D, DeLarochellière R, Paradis JM, Dumont E, Doyle D, Mohammadi S, Pasian S, Côté M, Pibarot P, and Rodés-Cabau J
- Subjects
- Aged, Aged, 80 and over, Aortic Valve anatomy & histology, Aortic Valve diagnostic imaging, Case-Control Studies, Echocardiography, Echocardiography, Doppler, Female, Hemodynamics, Humans, Logistic Models, Male, Multidetector Computed Tomography, Organ Size, Prosthesis Design, Transcatheter Aortic Valve Replacement methods, Treatment Outcome, Aortic Valve Stenosis surgery, Bioprosthesis, Heart Valve Prosthesis, Transcatheter Aortic Valve Replacement instrumentation
- Abstract
Introduction and Objectives: The self-expanding Portico valve is a new transcatheter aortic valve system yielding promising preliminary results, yet there are no comparative data against earlier generation transcatheter aortic valve systems. The aim of this study was to compare the hemodynamic performance of the Portico and balloon-expandable SAPIEN XT valves in a case-matched study with echocardiographic core laboratory analysis., Methods: Twenty-two patients underwent transcatheter aortic valve implantation with the Portico 23-mm valve and were matched for aortic annulus area and mean diameter measured by multidetector computed tomography, left ventricular ejection fraction, body surface area, and body mass index with 40 patients treated with the 23-mm SAPIEN XT. Mean aortic annulus diameters were 19.6±1.3mm by transthoracic echocardiography and 21.4±1.2mm by computed tomography, with no significant between-group differences. Doppler echocardiographic images were collected at baseline and at 1-month of follow-up and were analyzed in a central echocardiography core laboratory., Results: There were no significant between-group differences in residual mean transaortic gradients (SAPIEN XT: 10.4±3.7mmHg; Portico: 9.8±1.1mmHg; P=.49) and effective orifice areas (SAPIEN XT: 1.36±0.27cm(2); Portico, 1.37±.29cm(2); P=.54). Rates of severe prosthesis-patient mismatch (effective orifice area<0.65cm(2)/m(2)) were similar (SAPIEN XT: 13.5%; Portico: 10.0%; P=.56). No between-group differences were found in the occurrence of moderate-severe paravalvular leaks (5.0% vs 4.8% of SAPIEN XT and Portico respectively; P=.90)., Conclusions: Transcatheter aortic valve implantation with the self-expanding Portico system yielded similar short-term hemodynamic performance compared with the balloon-expandable SAPIEN XT system for treating patients with severe aortic stenosis and small annuli. Further prospective studies with longer-term follow-up and in patients with larger aortic annuli are required., (Copyright © 2015 Sociedad Española de Cardiología. Published by Elsevier España, S.L.U. All rights reserved.)
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- 2016
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29. Computer Vision Tool and Technician as First Reader of Lung Cancer Screening CT Scans.
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Ritchie AJ, Sanghera C, Jacobs C, Zhang W, Mayo J, Schmidt H, Gingras M, Pasian S, Stewart L, Tsai S, Manos D, Seely JM, Burrowes P, Bhatia R, Atkar-Khattra S, van Ginneken B, Tammemagi M, Tsao MS, and Lam S
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- Adenocarcinoma diagnostic imaging, Canada, Carcinoma, Non-Small-Cell Lung diagnostic imaging, Carcinoma, Small Cell diagnostic imaging, Carcinoma, Squamous Cell diagnostic imaging, Female, Follow-Up Studies, Humans, Lung Neoplasms diagnostic imaging, Male, Middle Aged, Neoplasm Invasiveness, Neoplasm Staging, Prognosis, Retrospective Studies, Adenocarcinoma pathology, Carcinoma, Non-Small-Cell Lung pathology, Carcinoma, Small Cell pathology, Carcinoma, Squamous Cell pathology, Early Detection of Cancer methods, Image Processing, Computer-Assisted methods, Lung Neoplasms pathology, Tomography, X-Ray Computed methods
- Abstract
Objectives: To implement a cost-effective low-dose computed tomography (LDCT) lung cancer screening program at the population level, accurate and efficient interpretation of a large volume of LDCT scans is needed. The objective of this study was to evaluate a workflow strategy to identify abnormal LDCT scans in which a technician assisted by computer vision (CV) software acts as a first reader with the aim to improve speed, consistency, and quality of scan interpretation., Methods: Without knowledge of the diagnosis, a technician reviewed 828 randomly batched scans (136 with lung cancers, 556 with benign nodules, and 136 without nodules) from the baseline Pan-Canadian Early Detection of Lung Cancer Study that had been annotated by the CV software CIRRUS Lung Screening (Diagnostic Image Analysis Group, Nijmegen, The Netherlands). The scans were classified as either normal (no nodules ≥1 mm or benign nodules) or abnormal (nodules or other abnormality). The results were compared with the diagnostic interpretation by Pan-Canadian Early Detection of Lung Cancer Study radiologists., Results: The overall sensitivity and specificity of the technician in identifying an abnormal scan were 97.8% (95% confidence interval: 96.4-98.8) and 98.0% (95% confidence interval: 89.5-99.7), respectively. Of the 112 prevalent nodules that were found to be malignant in follow-up, 92.9% were correctly identified by the technician plus CV compared with 84.8% by the study radiologists. The average time taken by the technician to review a scan after CV processing was 208 ± 120 seconds., Conclusions: Prescreening CV software and a technician as first reader is a promising strategy for improving the consistency and quality of screening interpretation of LDCT scans., (Copyright © 2016 International Association for the Study of Lung Cancer. Published by Elsevier Inc. All rights reserved.)
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- 2016
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30. Transcatheter Mitral Valve Implantation With the FORTIS Device: Insights Into the Evaluation of Device Success.
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Abdul-Jawad Altisent O, Dumont E, Dagenais F, Sénéchal M, Bernier M, O'Connor K, Paradis JM, Bilodeau S, Pasian S, and Rodés-Cabau J
- Subjects
- Aged, Cardiac Catheterization methods, Echocardiography, Doppler, Color, Echocardiography, Transesophageal, Heart Valve Prosthesis Implantation methods, Humans, Male, Mitral Valve Insufficiency diagnosis, Mitral Valve Insufficiency physiopathology, Multidetector Computed Tomography, Prosthesis Design, Severity of Illness Index, Treatment Outcome, Cardiac Catheterization instrumentation, Heart Valve Prosthesis, Heart Valve Prosthesis Implantation instrumentation, Mitral Valve diagnostic imaging, Mitral Valve physiopathology, Mitral Valve Insufficiency therapy
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- 2015
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31. Transcatheter mitral "valve-in-ring" implantation: a word of caution.
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Allende R, Doyle D, Urena M, Ribeiro HB, Amat-Santos IJ, Bernier M, Pasian S, DeLarochellière R, Dumont E, and Rodés-Cabau J
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- Aged, Echocardiography, Transesophageal methods, Female, Follow-Up Studies, Heart Valve Prosthesis, Heart Valve Prosthesis Implantation methods, Humans, Mitral Valve diagnostic imaging, Mitral Valve physiopathology, Postoperative Complications diagnosis, Postoperative Complications surgery, Radiography, Interventional methods, Reoperation methods, Time Factors, Treatment Outcome, Bioprosthesis, Heart Valve Prosthesis Implantation adverse effects, Mitral Valve surgery, Prosthesis Design methods, Prosthesis Failure
- Abstract
Transcatheter mitral valve-in-valve and valve-in-ring procedures have emerged as a potential alternative for patients with failed mitral bioprosthesis or mitral valve repair who are at very high or prohibitive surgical risk. However, transcatheter mitral valve-in-ring implantation (TMViRI) remains a challenging procedure, partially because of the oval shape of mitral rings, which may lead to prosthesis dysfunction when the ring is not able to adopt the circular shape of the transcatheter valve. We present a case of failed TMViRI in a dysfunctional mitral homograft. The potential factors leading to procedural failure are discussed., (Copyright © 2015 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved.)
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- 2015
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32. Plasma pro-surfactant protein B and lung function decline in smokers.
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Leung JM, Mayo J, Tan W, Tammemagi CM, Liu G, Peacock S, Shepherd FA, Goffin J, Goss G, Nicholas G, Tremblay A, Johnston M, Martel S, Laberge F, Bhatia R, Roberts H, Burrowes P, Manos D, Stewart L, Seely JM, Gingras M, Pasian S, Tsao MS, Lam S, and Sin DD
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- Aged, Biomarkers blood, Canada, Cohort Studies, Disease Progression, Female, Humans, Linear Models, Male, Middle Aged, Multivariate Analysis, Pulmonary Disease, Chronic Obstructive etiology, Pulmonary Disease, Chronic Obstructive physiopathology, Respiratory Function Tests, Retrospective Studies, Severity of Illness Index, Spirometry methods, Forced Expiratory Flow Rates, Protein Precursors blood, Pulmonary Disease, Chronic Obstructive blood, Pulmonary Surfactant-Associated Proteins blood, Pulmonary Surfactants blood, Smoking adverse effects
- Abstract
Plasma pro-surfactant protein B (pro-SFTPB) levels have recently been shown to predict the development of lung cancer in current and ex-smokers, but the ability of pro-SFTPB to predict measures of chronic obstructive pulmonary disease (COPD) severity is unknown. We evaluated the performance characteristics of pro-SFTPB as a biomarker of lung function decline in a population of current and ex-smokers. Plasma pro-SFTPB levels were measured in 2503 current and ex-smokers enrolled in the Pan-Canadian Early Detection of Lung Cancer Study. Linear regression was performed to determine the relationship of pro-SFTPB levels to changes in forced expiratory volume in 1 s (FEV1) over a 2-year period as well as to baseline FEV1 and the burden of emphysema observed in computed tomography (CT) scans. Plasma pro-SFTPB levels were inversely related to both FEV1 % predicted (p=0.024) and FEV1/forced vital capacity (FVC) (p<0.001), and were positively related to the burden of emphysema on CT scans (p<0.001). Higher plasma pro-SFTPB levels were also associated with a more rapid decline in FEV1 at 1 year (p=0.024) and over 2 years of follow-up (p=0.004). Higher plasma pro-SFTPB levels are associated with increased severity of airflow limitation and accelerated decline in lung function. Pro-SFTPB is a promising biomarker for COPD severity and progression., (Copyright ©ERS 2015.)
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- 2015
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33. Guidewire protection for a valve-in-valve transcatheter aortic valve implantation procedure with high-risk for coronary obstruction.
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Allende R, Barbosa Ribeiro H, Paradis JM, Doyle D, Pasian S, and Rodés-Cabau J
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- Aged, 80 and over, Coronary Occlusion etiology, Humans, Male, Risk Factors, Transcatheter Aortic Valve Replacement adverse effects, Coronary Occlusion prevention & control, Transcatheter Aortic Valve Replacement instrumentation, Transcatheter Aortic Valve Replacement methods
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- 2014
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34. Transapical mitral implantation of a balloon-expandable valve in native mitral valve stenosis in a patient with previous transcatheter aortic valve replacement.
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Ribeiro HB, Doyle D, Urena M, Allende R, Amat-Santos I, Pasian S, Bilodeau S, Mohammadi S, Paradis JM, DeLarochellière R, Rodés-Cabau J, and Dumont E
- Subjects
- Cardiac Catheterization methods, Echocardiography, Doppler, Color, Echocardiography, Three-Dimensional, Echocardiography, Transesophageal, Female, Heart Valve Prosthesis Implantation methods, Hemodynamics, Humans, Middle Aged, Mitral Valve Stenosis diagnosis, Mitral Valve Stenosis physiopathology, Prosthesis Design, Severity of Illness Index, Tomography, X-Ray Computed, Treatment Outcome, Aortic Valve physiopathology, Balloon Valvuloplasty, Cardiac Catheterization instrumentation, Heart Valve Prosthesis, Heart Valve Prosthesis Implantation instrumentation, Mitral Valve Stenosis therapy
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- 2014
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35. Comparison of hemodynamic performance of the balloon-expandable SAPIEN 3 versus SAPIEN XT transcatheter valve.
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Amat-Santos IJ, Dahou A, Webb J, Dvir D, Dumesnil JG, Allende R, Ribeiro HB, Urena M, Paradis JM, DeLarochellière R, Dumont E, Bergeron S, Thompson CR, Pasian S, Bilodeau S, Leipsic J, Larose E, Pibarot P, and Rodés-Cabau J
- Subjects
- Aged, 80 and over, Aortic Valve Stenosis diagnosis, Aortic Valve Stenosis surgery, Echocardiography, Doppler, Female, Humans, Male, Prosthesis Design, Severity of Illness Index, Tomography, X-Ray Computed, Treatment Outcome, Aortic Valve Stenosis physiopathology, Cardiac Catheterization methods, Heart Valve Prosthesis, Hemodynamics physiology
- Abstract
The SAPIEN 3 valve (S3V) is a new-generation transcatheter valve with enhanced anti-paravalvular leak properties, but no data comparing with earlier transcatheter valve systems are available. We aimed to compare the hemodynamic performance of the S3V and the SAPIEN XT valve (SXTV) in a case-matched study with echo core laboratory analysis. A total of 27 patients who underwent transcatheter aortic valve replacement (TAVR) with the S3V were matched for prosthesis size (26 mm), aortic annulus area, and mean diameter measured by computed tomography, left ventricular ejection fraction, body surface area, and body mass index with 50 patients treated with the SXTV. The prosthesis size was determined by oversizing of 1% to 15% of annulus area. Doppler echocardiographic images collected at baseline and 1-month follow-up were analyzed in a central echocardiography core laboratory. The need for postdilation was higher in the SXTV group (20% vs 4%, p=0.047), and mean residual gradient and effective orifice area were similar in both groups (p>0.05). The incidence of paravalvular aortic regurgitation was greater with the SXTV (≥mild: 42%, moderate: 8%) than with the S3V (≥mild: 7%, moderate: 0%; p=0.002 for ≥mild vs SXTV). The implantation of an S3V was the only factor associated with trace or no paravalvular leak after TAVR (p=0.007). In conclusion, TAVR with the S3V was associated with a very low rate of paravalvular leaks and need for balloon postdilation, much lower than that observed with the earlier generation of balloon-expandable valve (SXTV). The confirmation of these results in a larger cohort of patients will represent a major step forward in using transcatheter valves for the treatment of aortic stenosis., (Copyright © 2014 Elsevier Inc. All rights reserved.)
- Published
- 2014
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36. Characteristics of trabeculated myocardium burden in young and apparently healthy adults.
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Tizón-Marcos H, de la Paz Ricapito M, Pibarot P, Bertrand O, Bibeau K, Le Ven F, Sinha S, Engert J, Bédard E, Pasian S, Deschepper C, and Larose E
- Subjects
- Adolescent, Adult, Cardiomyopathies blood, Cardiomyopathies physiopathology, Diastole, Enzyme-Linked Immunosorbent Assay, Female, Follow-Up Studies, Heart Atria physiopathology, Heart Ventricles physiopathology, Humans, Male, Natriuretic Peptide, Brain blood, Peptide Fragments blood, Prospective Studies, Protein Precursors, Reference Values, Risk Factors, Surveys and Questionnaires, Young Adult, Cardiomyopathies diagnosis, Heart Atria pathology, Heart Ventricles pathology, Magnetic Resonance Imaging, Cine methods, Myocardial Contraction physiology, Myocardium pathology
- Abstract
Increased myocardial trabeculations define noncompaction cardiomyopathy (NCC). Imaging advancements have led to increasingly common identification of prominent trabeculations with unknown implications. We quantified and determined the impact of trabeculations' burden on cardiac function and stretch in a population of healthy young adults. One hundred adults aged 18 to 35 years (28±4 years, 55% women) without known cardiovascular disease were prospectively studied by cardiovascular magnetic resonance. Left ventricular (LV) volumes, segmental function, and ejection fraction (EF) and left atrial volumes were determined. Thickness and area of trabeculated (T) and dense (D) myocardium were measured for each standardized LV segment. N-terminal pro-brain natriuretic peptide (Nt-pro-BNP) was measured. Eighteen percent of the subjects had ≥1 positive traditional criteria for NCC, and 11% meet new proposed NCC cardiovascular magnetic resonance criteria. Trabeculated over dense myocardium ratio (T/D) ratios were uniformly greater at end-diastole versus end-systole (0.90±0.25 vs 0.42±0.13, p<0.0001), in women versus men (0.85±0.24 vs 0.72±0.19, p=0.006), at anterior versus nonanterior segments (1.41±0.59 vs 0.88±0.35, p<0.0001), and at apical versus nonapical segments (1.31±0.56 vs 0.87±0.38, p<0.0001). The largest T/D ratios were associated with lower LVEF (57.0±5.3 vs 62±5.5, p=0.0001) and greater Nt-pro-BNP (203±98 vs 155±103, p=0.04). Multivariable regression identified greater end-systolic T/D ratios as the strongest independent predictor of lower LVEF, beyond age and gender, left atrial or LV volumes, and Nt-pro-BNP (β=-9.9, 95% CI -15 to 4.9, p<0.001). In conclusion, healthy adults possess variable amounts of trabeculations that regularly meet criteria for NCC. Greater trabeculations are associated with decreased LV function. Apparently healthy young adults with increased trabecular burden possess evidence of mildly impaired cardiac function., (Copyright © 2014 Elsevier Inc. All rights reserved.)
- Published
- 2014
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37. Incidence, predictive factors and haemodynamic consequences of acute stent recoil following transcatheter aortic valve implantation with a balloon-expandable valve.
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Nombela-Franco L, Ribeiro HB, Urena M, Pasian S, Allende R, Doyle D, Delarochellière R, Delarochellière H, Laflamme L, Laflamme J, Jerez-Valero M, Côté M, Pibarot P, Larose E, Dumont E, and Rodés-Cabau J
- Subjects
- Aged, Aged, 80 and over, Aortic Valve Stenosis diagnosis, Aortic Valve Stenosis physiopathology, Cardiac Catheterization adverse effects, Female, Heart Valve Prosthesis Implantation adverse effects, Humans, Male, Multivariate Analysis, Prospective Studies, Prosthesis Design, Risk Factors, Severity of Illness Index, Time Factors, Treatment Outcome, Aortic Valve physiopathology, Aortic Valve Stenosis therapy, Balloon Valvuloplasty adverse effects, Cardiac Catheterization instrumentation, Heart Valve Prosthesis, Heart Valve Prosthesis Implantation instrumentation, Hemodynamics, Stents
- Abstract
Aims: The elastic behaviour (acute recoil) of a valve prosthesis stent following transcatheter aortic valve implantation (TAVI) is unknown. This study sought to determine the occurrence, severity, predictive factors and haemodynamic consequences of acute recoil following TAVI., Methods and Results: A prospective angiographic analysis of the stent frame dimensions in 111 consecutive patients who underwent TAVI with a balloon-expandable valve (36 Edwards SAPIEN; 75 SAPIEN XT) was performed. Acute recoil was defined as the difference between minimal lumen diameter (MLD) at full balloon expansion and immediately after balloon deflation. MLD during balloon inflation was significantly larger than MLD after balloon deflation (23.40±2.31 mm vs. 22.29±2.21 mm, p<0.001), which represented an absolute and percent decrease in stent dimension of 1.10±0.40 mm and 4.70±1.76%, respectively. In the multivariate analysis, the predictors of larger recoil were a higher prosthesis/annulus ratio (r²=0.0624, p=0.015) and the SAPIEN XT prosthesis (r²=0.1276, p=0.001). No significant changes in haemodynamic performance were observed at discharge and follow-up in patients with larger recoil., Conclusions: TAVI with a balloon-expandable valve was systematically associated with a certain degree of valve stent recoil after balloon deflation. A higher degree of valve oversizing and the SAPIEN XT prosthesis predicted a larger degree of stent recoil.
- Published
- 2014
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38. The impact of integration of a multidetector computed tomography annulus area sizing algorithm on outcomes of transcatheter aortic valve replacement: a prospective, multicenter, controlled trial.
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Binder RK, Webb JG, Willson AB, Urena M, Hansson NC, Norgaard BL, Pibarot P, Barbanti M, Larose E, Freeman M, Dumont E, Thompson C, Wheeler M, Moss RR, Yang TH, Pasian S, Hague CJ, Nguyen G, Raju R, Toggweiler S, Min JK, Wood DA, Rodés-Cabau J, and Leipsic J
- Subjects
- Aged, 80 and over, Aortic Rupture epidemiology, Aortic Valve surgery, Aortic Valve Insufficiency epidemiology, Aortic Valve Stenosis surgery, Balloon Occlusion, Cardiac Catheterization, Contrast Media, Female, Hospital Mortality, Humans, Imaging, Three-Dimensional, Male, Prospective Studies, Severity of Illness Index, Ultrasonography, Algorithms, Aortic Valve diagnostic imaging, Heart Valve Prosthesis, Heart Valve Prosthesis Implantation methods, Multidetector Computed Tomography, Prosthesis Fitting methods
- Abstract
Objectives: This study prospectively investigated the impact of integration of a multidetector computed tomography (MDCT) annular area sizing algorithm on transcatheter aortic valve replacement (TAVR) outcomes., Background: Appreciation of the 3-dimensional, noncircular geometry of the aortic annulus is important for transcatheter heart valve (THV) sizing., Methods: Patients being evaluated for TAVR in 4 centers underwent pre-procedural MDCT. Recommendations for balloon-expandable THV size selection were based on an MDCT sizing algorithm with an optimal goal of modest annulus area oversizing (5% to 10%). Consecutive patients who underwent TAVR with the algorithm (MDCT group) were compared with consecutive patients without the algorithm (control group). The primary endpoint was the incidence of more than mild paravalvular regurgitation (PAR), and the secondary endpoint was the composite of in-hospital death, aortic annulus rupture, and severe PAR., Results: Of 266 patients, 133 consecutive patients underwent TAVR (SAPIEN XT THV) in the MDCT group and 133 consecutive patients were in the control group. More than mild PAR was present in 5.3% (7 of 133) of the MDCT group and in 12.8% (17 of 133) in the control group (p = 0.032). The combined secondary endpoint occurred in 3.8% (5 of 133) of the MDCT group and in 11.3% (15 of 133) of the control group (p = 0.02), driven by the difference of severe PAR., Conclusions: The implementation of an MDCT annulus area sizing algorithm for TAVR reduces PAR. Three-dimensional aortic annular assessment and annular area sizing should be considered for TAVR., (Copyright © 2013 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.)
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- 2013
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39. Coronary obstruction following transcatheter aortic valve implantation: a systematic review.
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Ribeiro HB, Nombela-Franco L, Urena M, Mok M, Pasian S, Doyle D, DeLarochellière R, Côté M, Laflamme L, DeLarochellière H, Allende R, Dumont E, and Rodés-Cabau J
- Subjects
- Aged, Aged, 80 and over, Aortic Valve Stenosis mortality, Cardiac Catheterization instrumentation, Cardiac Catheterization mortality, Chi-Square Distribution, Coronary Artery Disease diagnosis, Coronary Artery Disease mortality, Coronary Artery Disease therapy, Female, Heart Valve Prosthesis, Heart Valve Prosthesis Implantation instrumentation, Heart Valve Prosthesis Implantation methods, Heart Valve Prosthesis Implantation mortality, Humans, Logistic Models, Male, Percutaneous Coronary Intervention, Prosthesis Design, Risk Assessment, Risk Factors, Time Factors, Treatment Outcome, Aortic Valve Stenosis therapy, Cardiac Catheterization adverse effects, Coronary Artery Disease etiology, Heart Valve Prosthesis Implantation adverse effects
- Abstract
Objectives: This study sought to evaluate, through a systematic review of the published data, the main baseline characteristics, management, and clinical outcomes of patients suffering coronary obstruction as a complication of transcatheter aortic valve implantation (TAVI)., Background: Very few data exist on coronary obstruction after TAVI., Methods: Studies published between 2002 and 2012, with regard to coronary obstruction as a complication of TAVI, were identified with a systematic electronic search. Only the studies reporting data on the main baseline and procedural characteristics, management of the complication, and clinical outcomes were analyzed., Results: A total of 18 publications describing 24 patients were identified. Most (83%) patients were women, with a mean age of 83 ± 7 years and a mean logistic European System for Cardiac Operative Risk Evaluation score of 25.1 ± 12.0%. Mean left coronary artery (LCA) ostium height and aortic root width were 10.3 ± 1.6 mm and 27.8 ± 2.8 mm, respectively. Most patients (88%) had received a balloon-expandable valve, and coronary obstruction occurred more frequently in the LCA (88%). Percutaneous coronary intervention was attempted in 23 cases (95.8%) and was successful in all but 2 patients (91.3%). At 30-day follow-up, there were no cases of stent thrombosis or repeat revascularization, and the mortality rate was 8.3%., Conclusions: Reported cases of coronary obstruction after TAVI occurred more frequently in women, in patients receiving a balloon-expandable valve, and the LCA was the most commonly involved artery. Percutaneous coronary intervention was a feasible and successful treatment in most cases. Continuous efforts should be made to identify the factors associated with this life-threatening complication to implement the appropriate measures for its prevention., (Copyright © 2013 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.)
- Published
- 2013
- Full Text
- View/download PDF
40. Workplace stress and prescription of antidepressant medications: a prospective study on a sample of Italian workers.
- Author
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d'Errico A, Cardano M, Landriscina T, Marinacci C, Pasian S, Petrelli A, and Costa G
- Subjects
- Adolescent, Adult, Depression etiology, Depression psychology, Female, Humans, Male, Middle Aged, Occupational Diseases complications, Occupational Diseases psychology, Prescriptions statistics & numerical data, Prospective Studies, Stress, Psychological etiology, Stress, Psychological psychology, Young Adult, Antidepressive Agents therapeutic use, Depression drug therapy, Employment psychology, Occupational Diseases drug therapy, Stress, Psychological drug therapy, Workplace
- Abstract
Purpose: The main aim of this study was to examine prospectively the relationship between antidepressant prescriptions (ADP), as a proxy of depressive symptoms, and work-related stress, measured according to the demand-control model., Methods: A cohort of 2,046 union workers who participated in a survey on working conditions and health in 1999-2000 was followed up to 2005, through the Regional Drug Prescription Register, for an ADP. The relative risks associated with demand, control and job strain were estimated using Poisson regression, adjusting for age, sex and other workplace factors (shift work, overtime, loud noise and psychological violence)., Results: In final multivariable models, high demand significantly increased the risk of depressive symptoms among blue collars (RR = 1.82), whereas among white collars, it was significantly protective (RR = 0.38). No significant relationship was found for job control or strain in either occupational class., Conclusions: The direct association observed elsewhere among blue collars between depressive symptoms and demand was confirmed, but not for job control or job strain. It cannot be ruled out that the association with demand was at least in part determined by reverse causation, due to exposure over-reporting among subjects with subclinical depressive symptoms at baseline. The protective effect of demand among white collars is not consistent with the literature and may be attributable to the particular characteristics of this sample, which included mainly workers employed in public administrative positions.
- Published
- 2011
- Full Text
- View/download PDF
41. Educational inequalities in cancer incidence in Turin, Italy.
- Author
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Spadea T, D'Errico A, Demaria M, Faggiano F, Pasian S, Zanetti R, Rosso S, Vicari P, and Costa G
- Subjects
- Adult, Female, Humans, Incidence, Italy epidemiology, Male, Risk Factors, Social Class, Socioeconomic Factors, Educational Status, Neoplasms epidemiology
- Abstract
The objective of this study was to investigate the relationship between cancer incidence and socioeconomic status, and to examine the temporal trends in social inequalities in cancer risk. Educational differentials in the incidence of cancer (25 sites) among adult residents of Turin (Italy) were examined using data from the Turin Longitudinal Study and the Piedmont Cancer Registry. The relationship between cancer incidence and educational level was evaluated over three 5-year periods between 1985 and 1999 using Poisson models. An estimated 17% of malignancies among men in the low-educational group were attributable to education, whereas women with a low educational level were slightly protected. Less-educated men had higher risks of upper aero-digestive tract, stomach, lung, liver, rectal, bladder, central nervous system and ill-defined cancers, and lower risks of melanoma, kidney and prostate cancers. Women with lower educational levels were at higher risk of stomach, liver and cervical cancers, whereas they were less likely to be diagnosed with melanoma, ovarian and breast cancers. For most sites, the educational gradient in risk did not vary substantially over time. The educational inequalities in cancer incidence observed in this cohort appear similar in magnitude and direction to socioeconomic inequalities found in other Western countries; for some cancer sites results partly differ from the results of other studies, and require further investigation. A thorough understanding of the relative burden of well-documented causes of social inequalities in cancer risk is essential to address preventive measures and to direct future research on unexplained social differences.
- Published
- 2009
- Full Text
- View/download PDF
42. Indicators predicting use of mental health services in Piedmont, Italy.
- Author
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Tibaldi G, Munizza C, Pasian S, Johnson S, Salvador-Carulla L, Zucchi S, Cesano S, Testa C, Scala E, and Pinciaroli L
- Subjects
- Catchment Area, Health, Community Mental Health Services organization & administration, Demography, Female, Forecasting, Humans, Italy, Male, National Health Programs, Regression Analysis, Socioeconomic Factors, Community Mental Health Services statistics & numerical data, Hospitals, Psychiatric statistics & numerical data
- Abstract
Background: Since the 1978 Italian reform, an integrated network of community mental health services has been introduced. With few exceptions, research on determinants of mental health service use at the district level has focused on inpatient activities and social deprivation indicators. The European Psychiatric Care Assessment Team (EPCAT) standardized methodology allows for an evidence-based comparison of mental health systems between geographical areas., Aims: To compare service provision and utilization between local catchment areas; to explore quantitative relationships between residential and community service use and socio-demographic indicators at the ecological level., Methods: The European Socio-demographic Schedule (ESDS) was used to describe area characteristics, and the European Service Mapping Schedule (ESMS) to measure service provision and utilization in 18 catchment areas in Piedmont., Results: Substantial variation in service use emerged. Acute hospital bed occupancy rates were lower in areas with more intensive community continuing care service users and with a smaller percentage of the population living alone. The non-acute hospital bed occupancy rate was directly related to the percentage of the population living alone or in overcrowded conditions, and to the level of mobile continuing care service users. Community continuing care service use was highest in areas with a larger percentage of the population living alone., Discussion: Multiple regression models explained between 48 and 55% of the variation in inpatient and community service use between areas. Relationships based on ecological characteristics do not necessarily apply to the individual. This level of assessment, however, is necessary in evaluating mental health policy and service systems, and in allocating resources., Implications for Health Care Provision and Use: The distribution of mental health care resources should be weighted in terms of indicators of social deprivation shown to be important predictors of both inpatient and community service use, as these are likely to be related., Implications for Health Policies: To ensure horizontal equity in access to mental health care, particularly for people with severe mental illness, evaluation of mental health policy should be based on a concurrent evidence-based assessment of the organization and use of both residential and community services, in relation to area level indicators of social deprivation., Implications for Further Research: Cross-national research using an internationally standardized methodology should consider the influence of the social network independently of other socio-economic indicators, to verify the relative importance of this in predicting service use in southern and in northern European countries.
- Published
- 2005
43. [The importance of regional akinesis of the left ventricle in the development of apical aneurysm].
- Author
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Sanches PC, Curti HJ, Bittencourt LA, Pasian S, and Carvalhal Sdos S
- Subjects
- Cardiomegaly complications, Electrocardiography, Female, Heart Conduction System injuries, Heart Valve Prosthesis adverse effects, Heart Ventricles pathology, Humans, Middle Aged, Ventricular Fibrillation, Heart Aneurysm etiology, Heart Ventricles physiopathology
- Published
- 1980
44. [Sudden death in a low socioeconomic population of the city of Campinas: anatomopathological study].
- Author
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Curti HJ, Sanches PC, Jabur Filho M, Mazzoni CJ, Pasian S, and Carvalhal SS
- Subjects
- Brazil, Cerebrovascular Disorders complications, Chagas Cardiomyopathy complications, Coronary Disease complications, Death, Sudden etiology, Humans, Pulmonary Edema complications, Socioeconomic Factors, Death, Sudden pathology
- Published
- 1983
45. [Restrictions in the indications for excretory urography in patients with sickle cell trait].
- Author
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Pires WR, Castro AC, de Lima AC, Martin RC, do Nascimento SP, Frias FA, and Pasian S
- Subjects
- Adolescent, Adult, Blood Viscosity, Female, Humans, Male, Oxygen blood, Anemia, Sickle Cell, Sickle Cell Trait, Urography adverse effects
- Published
- 1978
46. South American blastomycosis of epididymis.
- Author
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Frias FS, Nascimento SP, Pasian S, Lima AC, Pires WR, Castro AC, Martin RC, and Akamine O
- Subjects
- Amphotericin B therapeutic use, Brazil, Humans, Male, Middle Aged, Paracoccidioidomycosis drug therapy, Sulfonamides therapeutic use, Testicular Diseases drug therapy, Testicular Diseases epidemiology, Epididymis, Paracoccidioidomycosis epidemiology
- Abstract
Reported herein is the first Brazilian case of epididymal involvement by South American blastomycosis, and apparently the second case to be reported in the world literature.
- Published
- 1979
- Full Text
- View/download PDF
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