16 results on '"P, Salsi"'
Search Results
2. Conditional Injective Flows for Bayesian Imaging
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Khorashadizadeh, AmirEhsan, Kothari, Konik, Salsi, Leonardo, Harandi, Ali Aghababaei, de Hoop, Maarten, and Dokmanić, Ivan
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Computer Science - Machine Learning - Abstract
Most deep learning models for computational imaging regress a single reconstructed image. In practice, however, ill-posedness, nonlinearity, model mismatch, and noise often conspire to make such point estimates misleading or insufficient. The Bayesian approach models images and (noisy) measurements as jointly distributed random vectors and aims to approximate the posterior distribution of unknowns. Recent variational inference methods based on conditional normalizing flows are a promising alternative to traditional MCMC methods, but they come with drawbacks: excessive memory and compute demands for moderate to high resolution images and underwhelming performance on hard nonlinear problems. In this work, we propose C-Trumpets -- conditional injective flows specifically designed for imaging problems, which greatly diminish these challenges. Injectivity reduces memory footprint and training time while low-dimensional latent space together with architectural innovations like fixed-volume-change layers and skip-connection revnet layers, C-Trumpets outperform regular conditional flow models on a variety of imaging and image restoration tasks, including limited-view CT and nonlinear inverse scattering, with a lower compute and memory budget. C-Trumpets enable fast approximation of point estimates like MMSE or MAP as well as physically-meaningful uncertainty quantification., Comment: 23 pages, 23 figures
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- 2022
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3. Theoretical analysis of surface brightness-colour relations for late-type stars using MARCS model atmospheres
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Salsi, A., Nardetto, N., Plez, B., and Mourard, D.
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Astrophysics - Solar and Stellar Astrophysics ,Astrophysics - Astrophysics of Galaxies - Abstract
Surface brightness-colour relations (SBCRs) are largely used for general studies in stellar astrophysics and for determining extragalactic distances. Based on simulated spectra of late-type stars using MARCS model atmospheres, our aim is to analyse the effect of stellar fundamental parameters on the surface brightness. We also compare theoretical and recent empirical SBCRs. We used MARCS model atmospheres to compute spectra and the surface brightness of stars. We first explored the parameter space of MARCS (i.e. effective temperature, $\log g$, $\mathrm{[Fe/H]}$, microturbulence, and mass) in order to quantify their impact on the surface brightness. Then we considered a relation between the effective temperature and $\log g$ for late dwarfs and giants, as well as a solar metallicity, in order to allow a consistent comparison of theoretical and empirical SBCRs. We find that the SBCR is not sensitive to the microturbulence and mass. The effect of metallicity on the SBCR is found to be larger for dwarfs than for giants. It is also larger when considering larger $V-K_s$ values. We also find that a difference of 0.5 dex in metallicity between Galactic and LMC SBCRs does not affect the recent LMC distance determination, based on eclipsing binaries, by more than 0.4%. By comparing theoretical with empirical SBCRs, we find a good agreement of less than 2$\sigma$ for F5-K7 dwarfs and giants stars, while a larger discrepancy is found for M dwarfs and giants (about 4-6$\sigma$). The surface gravity properties, as modelled in MARCS, explain the differences in the empirical SBCRs in terms of class. We finally find that theoretical and empirical SBCRs for Cepheids are consistent. Carefully considering metallicity and $\log g$ is mandatory when calibrating or using SBCRs.
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- 2022
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4. Effect of Compressive Creep and Hydrostatic Pressure on Diffusion in NiCr and NiSi Systems
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Salsi, Camille, Monceau, Daniel, Desgranges, Clara, and Gheno, Thomas
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- 2022
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5. Comparison between prone and supine nephrolithotomy in pediatric population: a double center experience
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Campobasso, Davide, Bocchialini, Tommaso, Bevilacqua, Luigi, Guarino, Giulio, Di Pietro, Corradino, Granelli, Pietro, Mezzogori, Davide, Salsi, Paolo, Oltolina, Pietro, Gatti, Claudia, Puliatti, Stefano, Ceccarelli, Pier Luca, Maestroni, Umberto, Frattini, Antonio, Bianchi, Giampaolo, Micali, Salvatore, and Ferretti, Stefania
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- 2022
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6. A prenatal standard for fetal weight improves the prenatal diagnosis of small for gestational age fetuses in pregnancies at increased risk
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Visentin, Silvia, Londero, Ambrogio P., Cataneo, Ilaria, Bellussi, Federica, Salsi, Ginevra, Pilu, Gianluigi, and Cosmi, Erich
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- 2022
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7. Financial Capability Interventions Used for Specific Diagnoses Related to Functional Impairment: A Scoping Review.
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Salsi, Sofia, Ariano, Emily, Casey, Jennifer, Loewen, Morgan, and Engel, Lisa
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CINAHL database ,PSYCHOLOGY information storage & retrieval systems ,MEDICAL information storage & retrieval systems ,SYSTEMATIC reviews ,MEDICAL care costs ,MENTAL health ,FUNCTIONAL assessment ,DESCRIPTIVE statistics ,FINANCIAL management ,LITERATURE reviews ,MEDLINE - Abstract
Importance: Occupational therapists often address financial occupations of clients with acquired functional impairments who experience challenges with financial capability (FC). Objective: To explore the intervention literature aimed at improving FC in five diagnostic adult populations. Data Sources: MEDLINE, CINAHL, PsycInfo, EconLit, and EMBASE; researchers also completed backward and forward citation searching and contacted expert authors. Study Selection and Data Collection: Two independent reviewers completed article screening, selection, and extraction using a scoping review approach; a priori inclusion criteria were peer-reviewed articles, written in English, involving adults with one of five diagnostic conditions, describing any intervention to improve FC. Findings: Twenty-four articles met the inclusion criteria. Most articles were aimed at substance use or mental health populations (n = 20); fewer focused on brain injury (n = 2), multiple sclerosis (n = 1), or mixed-diagnosis (n = 1) populations. Only 4 were randomized controlled trials (RCTs). Interventions were heterogeneous and complex, including components of skills training (n = 21), individualized budgeting (n = 18), representative payeeship (n = 11), education (n = 10), structured goal setting (n = 7), savings building (n = 5), metacognitive strategies (n = 2), and assistive technology (n = 1). Conclusions and Relevance: Despite growth in the area, the literature regarding FC intervention is limited, with few RCTs and many populations unrepresented. The literature for a systematic review of FC intervention efficacy for these populations is insufficient, particularly because included studies used varied components, limiting comparison. Further research is imperative to guide evidence-based practice. Plain-Language Summary: This study is an overview of literature about interventions to address the financial occupations of clients with acquired functional impairments. The findings give occupational therapy researchers and clinicians the information they need to begin analyzing, using, and building the evidence to support the use of interventions to improve clients' financial capability and well-being. This study provides an overview of literature regarding interventions to improve the financial capability of clients with acquired functional impairments. [ABSTRACT FROM AUTHOR]
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- 2024
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8. A Rigorous and Relevant Research-Based Approach to Management Consulting: SEAM and Qualimetrics
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Henri Savall, Veronique Zardet, Jeremy Salmeron, Richard Baker, David M. Boje, Anthony F. Buono, John P. Conbere, Thomas G. Cummings, Jocelyne Boulos Eid, Pierre El Haddad, GEORGE NAIM EL RAHBANI, Robert P. Gephart, Gilles Guyot, Alla Heoriadi, Omaya Kuran, Murray Lindsay, Rickie Moore, Joanne Preston, Grace Ann Rosile, Debra P. Salsi, Eric Sanders, Peter Sorensen, and Therese F. Yaeger
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General Medicine - Published
- 2022
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9. Sonographic knowledge of occiput position to decrease failed operative vaginal delivery: a systematic review and meta-analysis of randomized controlled trials.
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Bellussi, Federica, Di Mascio, Daniele, Salsi, Ginevra, Ghi, Tullio, Dall'Asta, Andrea, Zullo, Fabrizio, Pilu, Gianluigi, Barros, Joana G., Ayres-de-Campos, Diogo, and Berghella, Vincenzo
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OBSTETRICAL extraction ,DELIVERY (Obstetrics) ,OBSTETRICAL forceps ,SECOND stage of labor (Obstetrics) ,RANDOMIZED controlled trials ,CESAREAN section ,RANDOM effects model ,DYSTOCIA ,ULTRASONIC imaging ,CLINICAL trials ,META-analysis ,SYSTEMATIC reviews ,FETAL presentation ,FETAL ultrasonic imaging - Abstract
Objective: This study aimed to assess the efficacy of sonographic assessment of fetal occiput position before operative vaginal delivery to decrease the number of failed operative vaginal deliveries.Data Sources: The search was conducted in MEDLINE, Embase, Web of Science, Scopus, ClinicalTrial.gov, Ovid, and Cochrane Library as electronic databases from the inception of each database to April 2021. No restrictions for language or geographic location were applied.Study Eligibility Criteria: Selection criteria included randomized controlled trails of pregnant women randomized to either sonographic or clinical digital diagnosis of fetal occiput position during the second stage of labor before operative vaginal delivery.Methods: The primary outcome was failed operative vaginal delivery, defined as a failed fetal operative vaginal delivery (vacuum or forceps) extraction requiring a cesarean delivery or forceps after failed vacuum. The summary measures were reported as relative risks or as mean differences with 95% confidence intervals using the random effects model of DerSimonian and Laird. An I2 (Higgins I2) >0% was used to identify heterogeneity.Results: A total of 4 randomized controlled trials including 1007 women with singleton, term, cephalic fetuses randomized to either the sonographic (n=484) or clinical digital (n=523) diagnosis of occiput position during the second stage of labor before operative vaginal delivery were included. Before operative vaginal delivery, fetal occiput position was diagnosed as anterior in 63.5% of the sonographic diagnosis group vs 69.5% in the clinical digital diagnosis group (P=.04). There was no significant difference in the rate of failed operative vaginal deliveries between the sonographic and clinical diagnosis of occiput position groups (9.9% vs 8.2%; relative risk, 1.14; 95% confidence interval, 0.77-1.68). Women randomized to sonographic diagnosis of occiput position had a significantly lower rate of occiput position discordance between the evaluation before operative vaginal delivery and the at birth evaluation when compared with those randomized to the clinical diagnosis group (2.3% vs 17.7%; relative risk, 0.16; 95% confidence interval, 0.04-0.74; P=.02). There were no significant differences in any of the other secondary obstetrical and perinatal outcomes assessed.Conclusion: Sonographic knowledge of occiput position before operative vaginal delivery does not seem to have an effect on the incidence of failed operative vaginal deliveries despite better sonographic accuracy in the occiput position diagnosis when compared with clinical assessment. Future studies should evaluate how a more accurate sonographic diagnosis of occiput position or other parameters can lead to a safer and more effective operative vaginal delivery technique. [ABSTRACT FROM AUTHOR]- Published
- 2022
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10. Factors correlated with hearing aids adherence in older adults: a prospective controlled study
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Ghiselli, Sara, Soncini, Arianna, Fabrizi, Enrico, Salsi, Daria, and Cuda, Domenico
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Objective To investigate which factors influence the adherence to hearing aid (HA) use in elderly patients with moderate-to-severe hearing loss.Methods This observational, prospective, single-centre study enrolled patients with moderate-to-severe hearing loss. They were evaluated before and 1 year after having either one or two HAs fitted.Results A total of 86 patients were enrolled in the study and of these 69.8% (60 of 86; USER group) continued to use their HA at 1 year after fitting; six patients had not continued their use (NON-USERS). The USER group was younger than the NON-USER group, but the difference was not significant. The USER group had a significantly better unaided auditory threshold at baseline than the NON-USER group. HA use resulted in improvements in speech audiometry and auditory threshold. There was also a maintenance of cognitive function in the USER group.Conclusion Use of HA for 1 year resulted in improved auditory performance and an absence of a deterioration of cognitive function. Trial registration:This research was retrospectively registered under no. NCT04333043 at ClinicalTrials.gov (http://www.clinicaltrials.gov/) on the 26 March 2020. This research has been registered with the Ethics Committee of the Area Vasta Emilia Nord under number 104, date of approval 17/07/2017.
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- 2024
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11. Petrogenesis and tectonic-magmatic context of emplacement of lepidolite and petalite pegmatites from the Fregeneda-Almendra field (Variscan Central Iberian Zone): clues from Nb-Ta-Sn oxide U-Pb geochronology and mineral geochemistry
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Ballouard, Christophe, Carr, Patrick, Parisot, Flore, Gloaguen, Éric, Melleton, Jérémie, Cauzid, Jean, Lecomte, Andreï, Rouer, Olivier, Salsi, Lise, Mercadier, Julien, Ballouard, Christophe, Carr, Patrick, Parisot, Flore, Gloaguen, Éric, Melleton, Jérémie, Cauzid, Jean, Lecomte, Andreï, Rouer, Olivier, Salsi, Lise, and Mercadier, Julien
- Abstract
The Fregeneda-Almendra pegmatite field of the Iberian Massif represents a typical expression of peraluminous rare-metal magmatism that occurred over western Europe at the end of the Variscan orogeny. It is the host for two main types of Li-mineralized intrusions, identified at the scale of the Variscan belt, including petalite- or spodumene-rich pegmatites, as well as Li-mica-rich pegmatites, for which the origin of mineralogical-chemical differences is not yet understood. Here, we provide cassiterite and columbite-group mineral (CGM) U-Pb ages along with oxide, mica and phosphate mineral compositions for Li-pegmatites from the Fregeneda-Almendra field in order to assess their petrogenesis and tectonic-magmatic context of emplacement. U-Pb geochronology indicates that petalite-rich and Li-mica-rich pegmatites were mostly emplaced sub-synchronously from 315 ± 6 to 308 ± 6 Ma, during strike-slip deformation and granitic magmatism within an anatectic dome bounding the pegmatite field. U-Pb data and pegmatite geographic zonation suggest that Li-pegmatites were sourced from buried equivalents of leucogranites and migmatites from the dome. Li-pegmatites experienced a complex crystallization including K-feldspar, petalite, topaz, Nb-Ta-Fe-Mn-rich cassiterite, amblygonite-group minerals (AGM) and CGM as early magmatic phases, followed by lepidolite for Li-mica-rich pegmatites. At the magmatic-hydrothermal transition, notably leading to the formation of Nb-Ta-Mn-Fe-poor cassiterite hosting CGM inclusions, earlier minerals were resorbed by muscovite and albite. A later F-rich hydrothermalism is locally reflected by zinnwaldite overgrowths on muscovite. Cassiterite, CGM and micas from petalite-rich pegmatites show lower Mn/Fe ratios and higher Ti contents, along with lower Zr-Ga contents for cassiterite, than that from Li-mica-rich pegmatites. Such behavior is consistent with a magmatic differentiation process whereby Ti content decreased and the degree of Mn-Fe geochemical fractionation and solubilities of Ga and Zr increased in the melts, possibly in relation with high fluorine activity. In Li-mica-rich pegmatites, AGM equilibrated with a melt with up to 2 wt% F, similar to that in equilibrium with lepidolite (1–3 wt%). In petalite-rich pegmatites, the relatively high F concentration of the melts equilibrated with AGM (≤ 1.5 wt% F) contrasts with the liquid equilibrated with muscovite (< 0.5 wt% F). This can be accounted for by muscovite crystallization after the exsolution of a F-rich aqueous phase at the magmatic-hydrothermal transition. Relatively similar F contents in the initial melts of petalite- and Li-mica-rich pegmatites support the hypothesis that the stability of lepidolite does not only involve high F but also a low H2O/F activity ratio. For the Fregeneda-Almendra Li-mica-rich pegmatites, this could be explained by a decrease of melt H2O solubility due to a relatively low pressure of emplacement.
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- 2024
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12. When the going gets tough, the tough get larger: how is pandemic affecting fetal weight?
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MONTAGUTI, Elisa, FIORENTINI, Marta, TIBALDI, Virginia, CATANEO, Ilaria, PELLEGRINO, Anita, DOROLDI, Sara, SALSI, Ginevra, and PILU, Gianluigi
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BIRTH weight ,CORONAVIRUS diseases ,COVID-19 pandemic ,PREGNANCY complications ,FETAL development - Published
- 2023
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13. WHAT IF BRITNEY SPEARS HAD AN OCCUPATIONAL THERAPIST? PREPARING FOR FINANCIAL CAPABILITY PRACTICE THROUGH RESEARCH.
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Salsi, Sofia, Monton, Justin, Carlson, Jennifer, Murie, Marc, Schmidt, Bryn, Chen, Eunice, Street, Jasmine, and Engel, Lisa
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INTERPROFESSIONAL relations ,MENTAL illness ,OCCUPATIONAL therapy ,CAREGIVERS ,FINANCIAL management ,RESEARCH ,OCCUPATIONAL therapy services ,HEALTH care teams - Published
- 2023
14. Empirical Evidence Regarding Financial Capability Interventions Used With Diagnostic Populations is Increasing: A Scoping Review.
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Salsi, Sofia, Ariano, Emily, Casey, Jennifer, Evans, Morgan, and Engel, Lisa
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To explore literature concerning interventions aimed at improving financial capability (FC) in diagnostic populations that have documented challenges with FC including individuals living with brain injury, mental health conditions, mild cognitive impairment/dementia, human immunodeficiency virus/acquired immunodeficiency syndrome, and multiple sclerosis. With librarian consultation, researchers searched five databases (Medline, CINAHL, PsychInfo, EconLit, EMBASE), completed backward and forward citation searching, and contacted expert authors. Two independent reviewers completed title/abstract screening and full article selection using online review software. A priori inclusion criteria included peer-reviewed, written in English, involved adults with aforementioned diagnoses, and described any intervention regarding FC. Two independent reviewers extracted data using a piloted extraction form. Reviewers created an inclusive model to categorize intervention components across selected articles. Database searching identified 7063 titles, and reviewers included 24 articles published between 1981-2018. Most articles were aimed at individuals with substance use and/or mental health conditions (n=20); less in other diagnoses (brain injury (n=2), multiple sclerosis (n=1) and mixed diagnoses (n=1). Articles included only four randomized control trials (RCTs); with more case series/cohort design studies (n=6), or opinion/editorial articles (n=4). Others were intervention frameworks, case studies or qualitative (n=10). Interventions discussed were heterogenous and complex, including components of education (n=10), skills training (n=21), individualized budgeting (n=18), metacognitive strategies (n=2), structured goal setting (n=7), savings building (n=5), representative payeeship (n=11), and assistive technology (n=1). Despite FC being a common goal in rehabilitation, there is insufficient literature to review and appraise FC intervention efficacy in these select populations. There is limited literature overall, with very few RCTs and many populations having zero to two articles. The interventions described have varied components that limits inter-article comparison. The literature provides possible intervention options, but further research is imperative to guide evidence-based rehabilitation practice. Authors do not have any conflicts to disclose. [ABSTRACT FROM AUTHOR]
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- 2022
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15. Characterisation of mesosegregations in large steel ingots
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Gutman, L, Kennedy, J R, Roch, F, Clément, A Marceaux dit, Salsi, L, Cauzid, J, Rouat, B, Combeau, H, Založnik, M, and Zollinger, J
- Abstract
The chemical composition mapping of low-alloyed steel ingots used for the nuclear industry is crucial in the manufacturing of forgings and their final quality mastering. Mechanical properties of forged and hot-rolled steels may be affected by chemically segregated bands. These bands arise from segregations that appear at the scale of a few grains in the as-cast structure: the so-called mesosegregations. While segregation at the scale of dendrite arms (microsegregation) and the scale of the casting (macrosegregation) is well understood and can be readily characterized, only little is known about the formation of mesosegregation. The first step towards understanding the cause behind mesosegregation formation can be brought through comprehensive chemical characterisation at the scale of several grains (mesoscopic scale), which requires using different characterisation techniques compared to micro- or macrosegregation characterisation. We developed a sampling and characterisation methodology that allows segregations to be mapped at the mesoscopic scale using micro X-ray fluorescence (μXRF). Characterisation technique, sampling methodology, and sample size must be adapted to consider the different solidification structures; both at smaller (dendrite arms, grains) and larger (macrostructure) scales. Segregations were characterised on a 113 x 98 mm2steel plate extracted from a low-alloyed steel large ingot.
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- 2023
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16. Active screening of COVID-19-associated pulmonary aspergillosis with serum beta-glucan and endotracheal aspirates galactomannan and fungal culture.
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Pavone P, Russello G, Salati G, Corsini R, Salsi P, Vizzini L, Lombardini C, Spaggiari L, Besutti G, Menozzi V, Spadoni A, Facciolongo N, Piro R, Carretto E, and Massari M
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- Female, Humans, Adult, Middle Aged, Aged, Male, Mannans, Bronchoalveolar Lavage Fluid microbiology, Sensitivity and Specificity, Invasive Pulmonary Aspergillosis diagnosis, Invasive Pulmonary Aspergillosis complications, beta-Glucans, COVID-19 complications, Pulmonary Aspergillosis diagnosis, Pulmonary Aspergillosis complications
- Abstract
Background: Since February 2021 active screening of COVID-19-associated pulmonary aspergillosis (CAPA) has been implemented in our institution., Objectives: To evaluate CAPA incidence in our centre and evaluate performance of our screening protocol., Methods: We screened once per week, collecting endotracheal aspirates for fungal culture and galactomannan (GM) and serum for 1,3-ß-D-glucan (BG). In case of positivity (GM more than 4.5, platelia assay, and/or BG >7 pg/ml, wako and/or positive fungal culture), second-level investigations were performed to pursue CAPA diagnosis according to ECMM/ISHAM criteria: bronchoalveolar lavage (BAL) fungal culture and GM, chest computed tomography (CT), serum GM., Results: A total of 102 patients were screened (median age 64 years, range 39-79; 28 (27.4%) females). Twenty-two patients were diagnosed with CAPA (21%). 12 patients were positive for serum BG, 17 patients were positive for endotracheal aspirates GM and 27 patients were positive for endotracheal aspirates fungal culture. Thirty-two BALs were performed, and 26 patients underwent CT chest. Following the second level investigations 61% of the patients with positive screening tests were diagnosed with CAPA. Serum BG above 20 pg/ml or positive serum GM were always associated with typical CT chest signs of aspergillosis. Compared with 1 single positive test, having 2 positive screening test was significantly more associated with CAPA diagnosis (p = .0004)., Conclusions: Active CAPA screening with serum 1,3-ß-D-glucan and endotracheal aspirates galactomannan and fungal cultures and consequent second level investigations led to high number of CAPA diagnosis. Combining more positive fungal biomarkers was more predictive of CAPA diagnosis., (© 2022 Wiley-VCH GmbH.)
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- 2023
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