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Guan E, Braslavsky A, Vazquez C, Besada CH, Pérez Akly MS, Peralta O, García Mónaco R, Ciarrocchi NM, Baccanelli M, Serra MM. De novo brain vascular malformation in an adult with hereditary hemorrhagic telangiectasia and juvenile polyposis overlap syndrome. J Stroke Cerebrovasc Dis 2024; 33:107726. [PMID: 38642785 DOI: 10.1016/j.jstrokecerebrovasdis.2024.107726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 04/04/2024] [Accepted: 04/16/2024] [Indexed: 04/22/2024] Open
Affiliation(s)
- Elisa Guan
- Medical student, Instituto Universitario Hospital Italiano de Buenos Aires, Argentina
| | - Ana Braslavsky
- A.R.G Argentine Rendu Study Group, Hereditary Hemorrhagic Telangiectasia Unit and Internal Medicine Department, Hospital Italiano de Buenos Aires, Argentina.
| | - Carolina Vazquez
- A.R.G Argentine Rendu Study Group, Hereditary Hemorrhagic Telangiectasia Unit, Hospital Italiano de Buenos Aires, Argentina
| | - Cristina H Besada
- Hereditary Hemorrhagic Telangiectasia Unit and Radiology Department, Hospital Italiano de Buenos Aires, Argentina
| | - Manuel S Pérez Akly
- A.R.G Argentine Rendu Study Group, Radiology Department, Hospital Italiano de Buenos Aires, Argentina
| | - Oscar Peralta
- Hereditary Hemorrhagic Telangiectasia Unit and Radiology Department, Hospital Italiano de Buenos Aires, Argentina
| | - Ricardo García Mónaco
- Hereditary Hemorrhagic Telangiectasia Unit and Radiology Department, Hospital Italiano de Buenos Aires, Argentina
| | - Nicolás M Ciarrocchi
- Hereditary Hemorrhagic Telangiectasia Unit and Intensive Therapy Unit, Hospital Italiano de Buenos Aires, Argentina
| | - Matteo Baccanelli
- Hereditary Hemorrhagic Telangiectasia Unit and Neurosurgical Department, Hospital Italiano de Buenos Aires, Argentina
| | - Marcelo M Serra
- A.R.G Argentine Rendu Study Group, Hereditary Hemorrhagic Telangiectasia Unit and Internal Medicine Department, Hospital Italiano de Buenos Aires, Argentina
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Erenso D, Tran L, Abualrob I, Bushra M, Hengstenberg J, Muhammed E, Endale I, Endale N, Endale E, Mayhut S, Torres N, Sheffield P, Vazquez C, Crogman H, Nichols C, Dang T, Hach EE. Observation of magnet-induced star-like radiation of a plasma created from cancer cells in a laser trap. Eur Biophys J 2024; 53:123-131. [PMID: 38451329 DOI: 10.1007/s00249-024-01701-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 10/06/2023] [Accepted: 01/20/2024] [Indexed: 03/08/2024]
Abstract
We present a new phenomenon resulting from the interaction of magnetic beads with cancer cells in a laser trap formed on a slide containing a depression 16.5 mm in diameter and 0.78 mm of maximum depth. This phenomenon includes the apparent formation and expansion of a dark bubble that attracts and incinerates surrounding matter when it explodes, which leads to a plasma emitting intense radiation that has the appearance of a star on a microscopic scale. We have observed the star-like phenomenon for more than 4 years, and the intensity depends on the laser's power. Measuring the laser power of the dark bubble shows the entrapment of electromagnetic energy as it expands.
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Affiliation(s)
- D Erenso
- Department of Physics, Middle Tennessee State University, Murfreesboro, TN, 37132, USA.
| | - L Tran
- Department of Physics, Middle Tennessee State University, Murfreesboro, TN, 37132, USA
| | - I Abualrob
- Department of Physics, Middle Tennessee State University, Murfreesboro, TN, 37132, USA
| | - M Bushra
- Department of Physics, Middle Tennessee State University, Murfreesboro, TN, 37132, USA
| | - J Hengstenberg
- Department of Physics, Middle Tennessee State University, Murfreesboro, TN, 37132, USA
| | - E Muhammed
- Department of Physics, Addis Ababa University, Addis Ababa, Ethiopia
| | - I Endale
- Department of Physics, Middle Tennessee State University, Murfreesboro, TN, 37132, USA
| | - N Endale
- Department of Physics, Middle Tennessee State University, Murfreesboro, TN, 37132, USA
| | - E Endale
- Department of Physics, Middle Tennessee State University, Murfreesboro, TN, 37132, USA
| | - S Mayhut
- Department of Physics, Middle Tennessee State University, Murfreesboro, TN, 37132, USA
| | - N Torres
- Department of Physics, Middle Tennessee State University, Murfreesboro, TN, 37132, USA
| | - P Sheffield
- Department of Physics, Middle Tennessee State University, Murfreesboro, TN, 37132, USA
| | - C Vazquez
- Department of Physics, Middle Tennessee State University, Murfreesboro, TN, 37132, USA
| | - H Crogman
- Department of Physics, California State University Dominguez Hills, Carson, CA, 90747, USA
| | - C Nichols
- Department of Physics, California State University Dominguez Hills, Carson, CA, 90747, USA
| | - T Dang
- Department of Physics, California State University Dominguez Hills, Carson, CA, 90747, USA
| | - E E Hach
- School of Physics and Astronomy, Rochester Institute of Technology, 85 Lomb Memorial Drive, Rochester, NY, 14623, USA
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Perez Lloveras E, Michelangelo JM, Videla CG, Gonzalez ML, Privitera V, Serra MM, Vazquez C. Severe thrombocytopenia associated to bevacizumab in a patient with scleroderma, gastrointestinal angiodysplasias and refractory gastrointestinal bleeding. Blood Coagul Fibrinolysis 2024; 35:141-146. [PMID: 38358904 DOI: 10.1097/mbc.0000000000001284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
This case report discusses the medical history of a 64-year-old woman diagnosed with scleroderma and diffuse gastrointestinal angiodysplasia. The patient received bevacizumab (BVZ) therapy to address gastrointestinal bleeding that was unresponsive to endoscopic treatment. Subsequently, she developed severe thrombocytopenia. Although there were suspicions of an immune-mediated mechanism resulting from BVZ treatment, the laboratory results did not provide conclusive evidence. The patient underwent transfusions, received gamma globulin, and was treated with Romiplostim. Over time, her platelet levels gradually improved, and the bleeding was successfully controlled. It's worth noting that BVZ-induced thrombocytopenia is a relatively rare yet severe adverse effect. Recognizing and understanding the mechanisms behind thrombocytopenia is essential for developing safer treatment approaches. Further research is required to identify potential risk factors associated with this condition.
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Affiliation(s)
| | | | | | - Maria Laura Gonzalez
- Gastroenterology Department
- Hereditary Hemorrhagic Unit, Hospital Italiano de Buenos Aires, Argentina
- Argentine Rendu Group (ARG)
| | - Veronica Privitera
- Hematology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Marcelo Martin Serra
- Internal Medicine Department
- Hereditary Hemorrhagic Unit, Hospital Italiano de Buenos Aires, Argentina
- Argentine Rendu Group (ARG)
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Osores PI, Vivacqua MN, Vazquez C, Marciano S, Giunta DH, Faccioli JL. Association Between Selective Serotonin Reuptake Inhibitors Prevalent Use and COVID-19-Related Mortality: A Retrospective Cohort Study. J Clin Psychopharmacol 2023; 43:411-416. [PMID: 37683229 DOI: 10.1097/jcp.0000000000001721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/25/2023]
Abstract
PURPOSE/BACKGROUND Since the emergence of the coronavirus disease 2019 (COVID-19), many efforts have been made to prevent and to treat the disease. In this line, the anti-inflammatory effect of selective serotonin reuptake inhibitors (SSRI) as alternatives for treating chronic inflammatory diseases has been studied. There is previous evidence of the usefulness of these drugs for reducing COVID-19 impact. METHODS/PROCEDURES We conducted a retrospective single-center cohort study of adult patients with a positive reverse transcriptase-polymerase chain reaction for COVID-19, evaluating the association between SSRI use and in-hospital mortality. FINDINGS/RESULTS Of 1689 included patients, 182 (10.8%) were exposed to SSRI. A total of 291 patients died during the hospitalization, representing an in-hospital mortality of 17.2% (95% confidence interval [CI], 15.4%-19.0%): 44 (24.2%) of the exposed to SSRIs versus 247 (16.4%) of those not exposed to SSRIs (crude odds ratio [OR], 1.62; 95% CI, 1.12-2.34; P = 0.009). No independent effect of SSRIs on in-hospital mortality was found when applying either the inverse probability of treatment weighting (OR, 1.15; 95% CI, 0.71-1.89; P = 0.56) or with conventional multivariable analysis 0.81 (95 % CI: 0.28-2.31, P = 0.69). IMPLICATIONS/CONCLUSIONS In the present retrospective study of patients hospitalized for COVID-19, prior use of SSRIs did not reduce mortality.
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Affiliation(s)
| | | | | | - Sebastián Marciano
- Department or Research, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Diego Hernán Giunta
- Department or Research, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
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Vazquez C, Gutierrez-Acevedo MN, Barbero S, Notari LDC, Agozino M, Fernandez JL, Anders MM, Grigera NL, Antinucci F, Orozco-Ganem ONF, Murga MD, Perez MD, Palazzo AG, Rejtman LM, Duarte IG, Vorobioff JD, Trevizan V, Bulaty S, Bessone F, Valverde M, Elizondo M, Borzi SM, Stieben TE, Masola AC, Ferretti SE, Arufe D, Demirdjian E, Raffa MP, Peralta M, Fainboim HA, Vazquez CE, Ruiz PM, Martínez JE, Heffner LA, Odzak A, Dirchwolf M, Smud A, Mendizabal M, Calzetta PA, Martinez A, Tomatis J, Bruno A, Ramos A, Pages J, Tevez S, Gadano AC, Giunta DH, Marciano S. Clinical and microbiological characteristics of bacterial infections in patients with cirrhosis. A prospective cohort study from Argentina and Uruguay. Ann Hepatol 2023; 28:101097. [PMID: 37030570 DOI: 10.1016/j.aohep.2023.101097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/01/2023] [Accepted: 03/03/2023] [Indexed: 04/10/2023]
Abstract
INTRODUCTION AND OBJECTIVES there is insufficient data regarding bacterial infections in patients with cirrhosis to support recommendations for empiric antibiotic treatments, particularly in Latin America. This study aimed to evaluate bacterial infection's clinical impact and microbiological characteristics, intending to serve as a platform to revise current practices. MATERIALS AND METHODS a multicenter prospective cohort study of patients with cirrhosis and bacterial infections from Argentina and Uruguay. Patients and infection-related information were collected, focusing on microbiology, antibiotic susceptibility patterns, and outcomes. RESULTS 472 patients were included. Spontaneous bacterial infections and urinary tract infections (UTI) were registered in 187 (39.6%) and 116 (24.6%) patients, respectively, representing the most common infections. Of the 256 culture-positive infections, 103 (40.2%) were caused by multidrug-resistant organisms (reaching 50% for UTI), and 181 (70.7%) received adequate initial antibiotic treatment. The coverage of cefepime and ceftriaxone was over 70% for the empirical treatment of community-acquired spontaneous infections, but ceftazidime´s coverage was only 40%. For all cases of UTI and for healthcare-associated or nosocomial spontaneous bacterial infections, the lower-spectrum antibiotics that covered at least 70% of the isolations were imipenem and meropenem. During hospitalization, a second bacterial infection was diagnosed in 9.8% of patients, 23.9% required at least one organ support, and 19.4% died. CONCLUSIONS short-term mortality of bacterial infections in patients with cirrhosis is very high, and a high percentage were caused by multidrug-resistant organisms, particularly in UTIs. The information provided might serve to adapt recommendations, particularly related to empirical antibiotic treatment in Argentina and Uruguay. The study was registered in Clinical Trials (NCT03919032).
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Affiliation(s)
- Carolina Vazquez
- Hospital Italiano de Buenos Aires, Internal Medicine Department, Buenos Aires, Argentina.
| | | | - Sabrina Barbero
- Hospital Churruca Visca, Liver Unit, Buenos Aires, Argentina
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Sofía Bulaty
- Hospital provincial del Centenario, Liver Unit, Rosario, Argentina
| | - Fernando Bessone
- Hospital provincial del Centenario, Liver Unit, Rosario, Argentina
| | - Marcelo Valverde
- Unidad Bi-Institucional de Trasplante Hepático, Hospital de Clínicas - Hospital Militar, Liver Unit, Montevideo, Uruguay
| | - Martín Elizondo
- Unidad Bi-Institucional de Trasplante Hepático, Hospital de Clínicas - Hospital Militar, Liver Unit, Montevideo, Uruguay
| | | | | | | | | | - Diego Arufe
- Sanatorio Sagrado Corazón, Liver Unit, Buenos Aires, Argentina
| | | | - María Pia Raffa
- Sanatorio Sagrado Corazón, Liver Unit, Buenos Aires, Argentina
| | | | | | | | | | | | | | - Andrea Odzak
- Hospital Argerich, Liver Unit, Buenos Aires, Argentina
| | | | - Astrid Smud
- Hospital Italiano de Buenos Aires, Infectious Diseases Section, Buenos Aires, Argentina
| | | | | | - Ana Martinez
- Hospital Fernández, Liver Unit, Buenos Aires, Argentina
| | - Jesica Tomatis
- Hospital Privado de Rosario, Liver Unit, Rosario, Argentina
| | - Andres Bruno
- Hospital Argerich, Liver Unit, Buenos Aires, Argentina
| | - Agñel Ramos
- Sanatorio Parque, Liver Unit, Rosario, Argentina
| | - Josefina Pages
- Hospital Universitario Austral, Liver Unit, Pilar, Argentina
| | - Silvina Tevez
- Sanatorio Güemes, Liver Unit, Buenos Aires, Argentina
| | - Adrian Carlos Gadano
- Hospital Italiano de Buenos Aires, Liver Unit, Buenos Aires, Argentina; Hospital Italiano de Buenos Aires, Department of Research, Buenos Aires, Argentina
| | - Diego H Giunta
- Hospital Italiano de Buenos Aires, Department of Research, Buenos Aires, Argentina; Center for Pharmacoepidemiology, Karolinska Institutet, Stockholm, Sweden
| | - Sebastián Marciano
- Hospital Italiano de Buenos Aires, Liver Unit, Buenos Aires, Argentina; Hospital Italiano de Buenos Aires, Department of Research, Buenos Aires, Argentina
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Aubert B, Cresson T, de Guise JA, Vazquez C. X-Ray to DRR Images Translation for Efficient Multiple Objects Similarity Measures in Deformable Model 3D/2D Registration. IEEE Trans Med Imaging 2023; 42:897-909. [PMID: 36318556 DOI: 10.1109/tmi.2022.3218568] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The robustness and accuracy of the intensity-based 3D/2D registration of a 3D model on planar X-ray image(s) is related to the quality of the image correspondences between the digitally reconstructed radiographs (DRR) generated from the 3D models (varying image) and the X-ray images (fixed target). While much effort may be devoted to generating realistic DRR that are similar to real X-rays (using complex X-ray simulation, adding densities information in 3D models, etc.), significant differences still remain between DRR and real X-ray images. Differences such as the presence of adjacent or superimposed soft tissue and bony or foreign structures lead to image matching difficulties and decrease the 3D/2D registration performance. In the proposed method, the X-ray images were converted into DRR images using a GAN-based cross-modality image-to-images translation. With this added prior step of XRAY-to-DRR translation, standard similarity measures become efficient even when using simple and fast DRR projection. For both images to match, they must belong to the same image domain and essentially contain the same kind of information. The XRAY-to-DRR translation also addresses the well-known issue of registering an object in a scene composed of multiple objects by separating the superimposed or/and adjacent objects to avoid mismatching across similar structures. We applied the proposed method to the 3D/2D fine registration of vertebra deformable models to biplanar radiographs of the spine. We showed that the XRAY-to-DRR translation enhances the registration results, by increasing the capture range and decreasing dependence on the similarity measure choice since the multi-modal registration becomes mono-modal.
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Levavasseur L, Salomez F, Paulmier A, Mettlen C, Kapinga P, Vazquez C. [Compartmental syndrome complicating endovascular treatment of ruptured abdominal aortic aneurysm]. Rev Med Liege 2023; 78:17-20. [PMID: 36634061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The Guide Line of the Society for Vascular Surgery now recommends endovascular repair (rEVAR) for ruptured abdominal aortic aneurysms (RAAA) when anatomical conditions are present. Abdominal compartment syndrome (ACS) can be one of the serious postoperative complications of rEVAR. ACS is usually associated with progressive development of organ dysfunctions and poor outcomes. We describe an ACS following a RAAA with hemorrhagic shock treated conservatively with a rEVAR.Decompression laparotomy were not performed because spontaneous improvement with conservative ICU treatment was effective.
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Affiliation(s)
- L Levavasseur
- Service de Chirurgie générale, CHR Sambre et Meuse, site Sambre, Auvelais, Belgique
| | - F Salomez
- Service de Chirurgie générale, CHR Sambre et Meuse, site Sambre, Auvelais, Belgique
| | - A Paulmier
- Service de Chirurgie générale, CHR Sambre et Meuse, site Sambre, Auvelais, Belgique
| | - C Mettlen
- Service de Chirurgie générale, CHR Sambre et Meuse, site Sambre, Auvelais, Belgique
| | - P Kapinga
- Service de Chirurgie générale, CHR Sambre et Meuse, site Sambre, Auvelais, Belgique
| | - C Vazquez
- Service de Chirurgie générale, CHR Sambre et Meuse, site Sambre, Auvelais, Belgique
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Negatu SG, Arreguin MC, Jurado KA, Vazquez C. Being the Alice of academia: lessons from the Red Queen hypothesis. Pathog Dis 2022; 80:6698717. [PMID: 36104151 PMCID: PMC9629500 DOI: 10.1093/femspd/ftac034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 07/12/2022] [Accepted: 09/12/2022] [Indexed: 11/20/2022] Open
Abstract
Viruses and hosts must navigate environments in which each tries to outcompete the other for survival or to coexist within the same spaces. In Lewis Carrol’s Through the Looking Glass, the Red Queen tells Alice, “Now, here, you see, it takes all the running you can do, to keep in the same place. If you want to get somewhere else, you must run at least twice as fast as that!” Borrowing from this idea, the Red Queen hypothesis asserts that organisms, such as viruses, must continuously adapt to environmental pressures to survive. In this commentary, we draw parallels between the Red Queen hypothesis and the experiences scientists of color navigate to thrive in academic spaces. In both phenomena, adapting to environmental pressures is necessary for survival. We identify the various pressures and bottlenecks faced by historically underrepresented groups in academia, as well as the adaptation strategies they must implement to persist in academia.
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Affiliation(s)
- S G Negatu
- Department of Microbiology, University of Pennsylvania Perelman School of Medicine , Philadelphia, PA , United States of America
| | - M C Arreguin
- Department of Microbiology, University of Pennsylvania Perelman School of Medicine , Philadelphia, PA , United States of America
| | - K A Jurado
- Department of Microbiology, University of Pennsylvania Perelman School of Medicine , Philadelphia, PA , United States of America
| | - C Vazquez
- Department of Microbiology, University of Pennsylvania Perelman School of Medicine , Philadelphia, PA , United States of America
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Perez Akly MS, Vazquez C, Besada CH, Rodriguez MJ, Conde MF, Cajal AR, Peuchot VA, Dardik D, Baccanelli MM, Serra MM. Prevalence of Intracranial Aneurysms in Hereditary Hemorrhagic Telangiectasia: Report from a Single Reference Center. AJNR Am J Neuroradiol 2022; 43:844-849. [PMID: 35589139 DOI: 10.3174/ajnr.a7505] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 03/17/2022] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND PURPOSE Neurologic manifestations in hereditary hemorrhagic telangiectasia include an increased incidence of brain abscesses and ischemic strokes due to paradoxic embolization in addition to a wide spectrum of symptoms and complications due to typical brain vascular malformations. Intracranial aneurysms are not part of this brain vascular malformation spectrum. The aim of this study was to determine their prevalence in patients with hereditary hemorrhagic telangiectasia. MATERIALS AND METHODS This was a single-center, retrospective study. Adult patients from the institutional Hereditary Hemorrhagic Telangiectasia registry with a definitive diagnosis of hereditary hemorrhagic telangiectasia and an available report or angiographic imaging study were included and reviewed to determine the intracranial aneurysm prevalence. In addition, the morphologic characteristics of intracranial aneurysms and possible associated risk factors were collected. RESULTS Two hundred twenty-eight patients were analyzed. Thirty-seven aneurysms in 33 patients (14.5%; 95% CI, 9.9%-19%) were found. The median diameter of intracranial aneurysms was 3.2 mm (interquartile range, 2.6-4.4 mm). No association between intracranial aneurysm and sex, age, or genetic background was noted. There were no subarachnoid hemorrhagic events due to intracranial aneurysm rupture. CONCLUSIONS Due to the high prevalence of intracranial aneurysms in adult patients with hereditary hemorrhagic telangiectasia, further studies regarding bleeding risks and monitoring should be addressed.
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Affiliation(s)
- M S Perez Akly
- From the Department of Radiology (M.S.P.A., C.H.B., M.J.R., C.M.F.), Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
- A.R.G. Argentine Rendu Study Group (M.S.P.A., C.V., C.H.B., A.R.C., VA.P., D.D., M.M.B., M.M.S.), Buenos Aires, Argentina
- Hereditary Hemorrhagic Telangiectasia Unit (M.S.P.A., C.H.B., A.R.C., M.M.B., M.M.S.) Hospital Italiano, Buenos Aires, Argentina
| | - C Vazquez
- A.R.G. Argentine Rendu Study Group (M.S.P.A., C.V., C.H.B., A.R.C., VA.P., D.D., M.M.B., M.M.S.), Buenos Aires, Argentina
- Department of Internal Medicine (C.V., M.M.S.), Hospital Italiano, Buenos Aires, Argentina
| | - C H Besada
- From the Department of Radiology (M.S.P.A., C.H.B., M.J.R., C.M.F.), Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
- A.R.G. Argentine Rendu Study Group (M.S.P.A., C.V., C.H.B., A.R.C., VA.P., D.D., M.M.B., M.M.S.), Buenos Aires, Argentina
- Hereditary Hemorrhagic Telangiectasia Unit (M.S.P.A., C.H.B., A.R.C., M.M.B., M.M.S.) Hospital Italiano, Buenos Aires, Argentina
| | - M J Rodriguez
- From the Department of Radiology (M.S.P.A., C.H.B., M.J.R., C.M.F.), Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - M F Conde
- From the Department of Radiology (M.S.P.A., C.H.B., M.J.R., C.M.F.), Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - A R Cajal
- A.R.G. Argentine Rendu Study Group (M.S.P.A., C.V., C.H.B., A.R.C., VA.P., D.D., M.M.B., M.M.S.), Buenos Aires, Argentina
- Hereditary Hemorrhagic Telangiectasia Unit (M.S.P.A., C.H.B., A.R.C., M.M.B., M.M.S.) Hospital Italiano, Buenos Aires, Argentina
- Translational Medicine and Biomedical Engineering Institute (A.R.C.), Buenos Aires, Argentina
- University Institute (A.R.C., M.M.B., M.M.S.), Hospital Italiano, Buenos Aires, Argentina
| | - V A Peuchot
- A.R.G. Argentine Rendu Study Group (M.S.P.A., C.V., C.H.B., A.R.C., VA.P., D.D., M.M.B., M.M.S.), Buenos Aires, Argentina
- Internal Medicine Research Area (V.A.P.), Hospital Italiano, Buenos Aires, Argentina
| | - D Dardik
- A.R.G. Argentine Rendu Study Group (M.S.P.A., C.V., C.H.B., A.R.C., VA.P., D.D., M.M.B., M.M.S.), Buenos Aires, Argentina
- From the Department of Radiology (D.D.), Clínica Instituto de Diagnóstico Sociedad Anónima (INDISA), Santiago, Chile
| | - M M Baccanelli
- A.R.G. Argentine Rendu Study Group (M.S.P.A., C.V., C.H.B., A.R.C., VA.P., D.D., M.M.B., M.M.S.), Buenos Aires, Argentina
- Department of Neurosurgery (M.M.B.), Hospital Italiano, Buenos Aires, Argentina
- Hereditary Hemorrhagic Telangiectasia Unit (M.S.P.A., C.H.B., A.R.C., M.M.B., M.M.S.) Hospital Italiano, Buenos Aires, Argentina
- University Institute (A.R.C., M.M.B., M.M.S.), Hospital Italiano, Buenos Aires, Argentina
| | - M M Serra
- A.R.G. Argentine Rendu Study Group (M.S.P.A., C.V., C.H.B., A.R.C., VA.P., D.D., M.M.B., M.M.S.), Buenos Aires, Argentina
- Department of Internal Medicine (C.V., M.M.S.), Hospital Italiano, Buenos Aires, Argentina
- Hereditary Hemorrhagic Telangiectasia Unit (M.S.P.A., C.H.B., A.R.C., M.M.B., M.M.S.) Hospital Italiano, Buenos Aires, Argentina
- University Institute (A.R.C., M.M.B., M.M.S.), Hospital Italiano, Buenos Aires, Argentina
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10
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Guo Q, Zhang Y, Vazquez C, Xi K, Boyce CM. Multi‐Fluid
Model Simulations of Gravitational Instabilities in Fluidized Binary Granular Materials. AIChE J 2022. [DOI: 10.1002/aic.17714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Qiang Guo
- Department of Chemical Engineering Columbia University New York New York USA
| | - Yuxuan Zhang
- Department of Chemical Engineering Columbia University New York New York USA
| | - Carolina Vazquez
- Department of Chemical Engineering Columbia University New York New York USA
| | - Kenan Xi
- Department of Chemical Engineering Columbia University New York New York USA
- State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University China
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Wirtzfeld N, Assira A, Van Houte B, Vazquez C. [Endovascular management of chronic mesenteric ischemia : retrospective single-centre study]. Rev Med Liege 2022; 77:98-103. [PMID: 35143129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Chronic mesenteric ischemia (CMI) is a clinical entity linked to a gradual decrease in coelio-mesenteric arterial flow caused by occlusive disease of the digestive arterial axes. There are many etiologies of CMI, but most of the time atherosclerosis is the leading cause. Due to the development of collateral networks, clinical manifestations of CMI are very rare although some degree of stenosis of the digestive arteries is frequently found in asymptomatic elderly patients. Symptomatic CMI typically presents with the triad «post-meal abdominal pain - fear of eating - weight loss». Open surgical treatment was the gold standard for the management of symptomatic CMI since 1958. However, from 1980 and the introduction of endovascular treatment, percutaneous angioplasty combined with with stenting became the most common revascularization technique for CMI. The objective of this article is to report the results associated with endovascular therapy in patients with CMI at our hospital over the past 8 years.
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Affiliation(s)
- N Wirtzfeld
- Service de Chirurgie digestive, CHR du Val de Sambre, Belgique
| | - A Assira
- Service de Gériatrie, CHR du Val de Sambre, Belgique
| | - B Van Houte
- Service de Gastro-Entérologie, CHR du Val de Sambre, Belgique
| | - C Vazquez
- Service de Chirurgie vasculaire, CHR du Val de Sambre, Belgique
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12
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Vallone MG, Vazquez C, Chuliber FA, Privitera V, Ferraris A, Cantarella RF, Indo MF, Sanchez Thomas DM, Peuchot VA, Vazquez FJ. Low Incidence of Symptomatic Thrombotic Events in Adult Patients Hospitalized with Coronavirus 19: A Retrospective Cohort Study. Clin Appl Thromb Hemost 2021; 27:10760296211051712. [PMID: 34714177 PMCID: PMC8558593 DOI: 10.1177/10760296211051712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Background Since the beginning of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV2) pandemic, there have been many reports of increased incidence of venous thromboembolism and arterial events as a complication. Objective To determine the incidence of symptomatic thrombotic events (TEs) in patients hospitalized for SARS-CoV2 disease (coronavirus 19 [Covid-19]). Methods A retrospective single-center cohort study with adult patients with a positive reverse transcriptase-polymerase chain reaction (rt-PCR) for SARS-CoV2, included from the date of diagnosis of Covid-19 and followed for 90 days or until death. Results A total of 1621 patients were included in this study. The median age was 73 years (interquartile range25th-75th [IQR] 53-87 years) and 57% (913) were female. Overall mortality was 21.6% (348). The overall incidence of symptomatic TEs within 90 days of diagnosis was 1.8% (30 of 1621) occurring in 28 patients, including an incidence of pulmonary embolism of 0.9% (15, 95% confidence interval [CI] 0.60%-1.6%), deep venous thrombosis of 0.61% (10, 95% CI 0.2%-1%), ischemic stroke of 0.25% (4, 95% CI 0.09%-0.65%), and ischemic arterial events of 0.06% (1, 95% CI 0.008%-0.43%). No acute coronary syndrome events were recorded. The incidence of symptomatic TEs was significantly lower in the general ward than in intensive care units (1.2% vs 5.7%; p < .001). The median time since positive rt-PCR for SARS-CoV2 to symptomatic TE was 22.5 days (IQR 19-43 days). There was no significant difference in the proportion of patients receiving (53.6%) and not receiving thromboprophylaxis (66.5%) and the development of TEs. Conclusion The overall incidence of symptomatic TEs among these patients was lower than the incidence previously reported.
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Affiliation(s)
- Marcelo G Vallone
- 37533Hospital Italiano de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Carolina Vazquez
- 37533Hospital Italiano de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina.,*Co-first authorship
| | - Fernando A Chuliber
- 37533Hospital Italiano de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Verónica Privitera
- 37533Hospital Italiano de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Augusto Ferraris
- 37533Hospital Italiano de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina.,University of Buenos Aires, Buenos Aires, Argentina
| | - Ramiro F Cantarella
- 37533Hospital Italiano de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - María F Indo
- 37533Hospital Italiano de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | | | - Verónica A Peuchot
- 37533Hospital Italiano de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina.,Co-senior authorship
| | - Fernando J Vazquez
- 37533Hospital Italiano de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina.,Co-senior authorship
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13
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Bartel R, Levorato M, Adroher M, Cardelus S, Diaz A, Lacima J, Vazquez C, Veneri A, Wienberg P, Claveria M, Haag O. Performance of endoscopic repair with endonasal flaps for congenital choanal atresia. A systematic review. Acta Otorrinolaringologica (English Edition) 2021. [DOI: 10.1016/j.otoeng.2020.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Affiliation(s)
- H. Van Damme
- Department of Cardiovascular, CHU Liège, Belgium
| | | | - C. Vazquez
- Department of Cardiovascular, CHU Liège, Belgium
| | - Q. Desiron
- Department of Cardiovascular, CHU Liège, Belgium
| | - R. Limet
- Department of Cardiovascular, CHU Liège, Belgium
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15
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Affiliation(s)
- C R Brewin
- University College London, Gower Street, London WC1E 6BT, UK
| | - J DePierro
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - P Pirard
- Agence Nationale de santé Publique, Saint-Maurice, France
| | - C Vazquez
- Universidad Complutense de Madrid, Madrid, Spain
| | - R Williams
- University of South Wales, Pontypridd, UK
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16
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Bortoluzzi CF, Pontello E, Pintani E, de Winter-de Groot KM, D'Orazio C, Assael BM, Hunink MM, Tiddens HA, Caudri D, Belessis Y, Bremont F, Bui S, Casciaro R, Cavicchi M, Cox D, Da Dalt L, De Gregorio F, Dubus J, Gartner S, Geerdink M, Hansen C, Honková L, Jenkins L, Jung A, Karpati F, Mainguy C, Möller A, Neri A, Pressler T, Proesmans M, Raia V, Reid A, Rietschel E, Robinson P, Robinson P, Rossi P, Rovira S, Schultz A, Sepe O, Skalická V, Stick S, Švabe V, Tai A, Tosco A, Vazquez C. The impact of chest computed tomography and chest radiography on clinical management of cystic fibrosis lung disease. J Cyst Fibros 2020; 19:641-646. [DOI: 10.1016/j.jcf.2019.08.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 08/08/2019] [Accepted: 08/10/2019] [Indexed: 01/19/2023]
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17
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Bartel R, Levorato M, Adroher M, Cardelus S, Diaz A, Lacima J, Vazquez C, Veneri A, Wienberg P, Claveria MA, Haag OH. Performance of endoscopic repair with endonasal flaps for congenital choanal atresia. A systematic review. Acta Otorrinolaringol Esp (Engl Ed) 2020; 72:51-56. [PMID: 32439138 DOI: 10.1016/j.otorri.2020.01.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 01/07/2020] [Accepted: 01/19/2020] [Indexed: 01/15/2023]
Abstract
Endoscopic repair of congenital choanal atresia is the gold standard surgical treatment today. Though several controversies on treatment have been reported, surgical techniques for better outcomes are still in discussion. The objective of this study is to evaluate the performance of endoscopic choanal atresia repair with endonasal flaps and no stents. Publications in English in the last 5 years were searched in the PUBMED database and were systematically reviewed. A total of 9 articles were included according to the inclusion criteria, obtaining a total of 266 patients managed for congenital choanal atresia with endoscopic surgery, endonasal flaps, and no stents. Surgical results, type of atresia, atresia laterality, associated pathologies and follow up were evaluated. Successful surgery was obtained in 237 (89%) patients while 29 (11%) patients required a new surgical intervention during the follow-up period. Fourteen percent of the patients were diagnosed with CHARGE syndrome and 5% of the patients had some associated heart disease. Bony-Membranous stenosis was observed in 74% of the patients, while a total bony obstruction was recognized in 26% of the patients. Unilateral atresia was observed in 37% of the cases and 63% of the cases had bilateral atresia. The mean follow-up period was 39.5 months (range 3-168 months). An important functional success rate can be accomplished by correcting congenital choanal atresia using functional endoscopic surgery, covering raw areas with endonasal vascularized flaps, avoiding postoperative endonasal stenting.
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Affiliation(s)
- R Bartel
- Otolaryngology Department, Barcelona Children's Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Catalonia, Spain.
| | - M Levorato
- Otolaryngology Department, Barcelona Children's Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Catalonia, Spain
| | - M Adroher
- Otolaryngology Department, Barcelona Children's Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Catalonia, Spain
| | - S Cardelus
- Otolaryngology Department, Barcelona Children's Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Catalonia, Spain
| | - A Diaz
- Otolaryngology Department, Barcelona Children's Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Catalonia, Spain
| | - J Lacima
- Otolaryngology Department, Barcelona Children's Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Catalonia, Spain
| | - C Vazquez
- Otolaryngology Department, Barcelona Children's Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Catalonia, Spain
| | - A Veneri
- Otolaryngology Department, Barcelona Children's Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Catalonia, Spain
| | - P Wienberg
- Otolaryngology Department, Barcelona Children's Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Catalonia, Spain
| | - M A Claveria
- Otolaryngology Department, Barcelona Children's Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Catalonia, Spain
| | - O H Haag
- Otolaryngology Department, Barcelona Children's Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Catalonia, Spain
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18
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Allab A, Vazquez C, Cresson T, Guise JD. Calibration of Stereo Radiography System for Radiostereometric Analysis Application. Annu Int Conf IEEE Eng Med Biol Soc 2020; 2019:4859-4862. [PMID: 31946949 DOI: 10.1109/embc.2019.8857531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
This paper describes a new alternative to conventional radiography system currently used for radiostereometric analysis studies. Instead of using two non-calibrated X-ray sources with a cumbersome calibration cage, we propose to use the biplanar radiography EOS system. Its fixed configuration provides a preliminary calibration and a much simpler acquisition protocol. A flexible and accurate calibration method is presented to optimize EOS default calibration using a simple object and a self-calibration method. To validate our system, we calculate the 3D reconstruction error of a known object. Results showed an accuracy of 70±11μm and 0.05±0.02° for translation and rotation respectively, and an average epipolar error of 23±03μm.
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19
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Cefali LC, Vazquez C, Ataide JA, Figueiredo MC, Ruiz ALTG, Foglio MA, Lancellotti M, Mazzola PG. In vitro activity and formulation of a flavonoid-containing cashew pulp extract for the topical treatment of acne and the protection of skin against premature aging. Nat Prod Res 2020; 35:5243-5249. [PMID: 32323575 DOI: 10.1080/14786419.2020.1747454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The cashew nut is an important product in Brazil, both for consumption and export, with the pulp of the cashew fruit being considered a by-product despite its high flavonoid content. In this study, the use of cashew pulp extract as a treatment for acne and in the prevention of early skin damage was investigated. Its flavonoid content was determined using spectrophotometric identification, and its effects on cell and bacterial viability, the migration of keratinocytes, and antioxidant activity in vitro were evaluated. Furthermore, it was incorporated into an emulsion for topical administration, and the physical-chemical stability parameters of the formulation were determined. The cashew pulp contained flavonoids with healing and antioxidant activity, and was not toxic to keratinocyte cells in a viability test. The flavonoid-rich formulation was stable, indicating that this is a promising formulation for use in the treatment of acne and protection of skin against premature damage.
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Affiliation(s)
- Letícia Caramori Cefali
- Graduate Program in Biosciences and Technology of Bioactive Products, Institute of Biology, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Carolina Vazquez
- Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Janaína Artem Ataide
- Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Mariana Cecchetto Figueiredo
- Graduate Program in Medical Sciences. School of Medical Sciences, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | | | - Mary Ann Foglio
- Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Marcelo Lancellotti
- Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Priscila Gava Mazzola
- Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
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20
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Aubert B, Vazquez C, Cresson T, Parent S, de Guise JA. Toward Automated 3D Spine Reconstruction from Biplanar Radiographs Using CNN for Statistical Spine Model Fitting. IEEE Trans Med Imaging 2019; 38:2796-2806. [PMID: 31059431 DOI: 10.1109/tmi.2019.2914400] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
To date, 3D spine reconstruction from biplanar radiographs involves intensive user supervision and semi-automated methods that are time-consuming and not effective in clinical routine. This paper proposes a new, fast, and automated 3D spine reconstruction method through which a realistic statistical shape model of the spine is fitted to images using convolutional neural networks (CNN). The CNNs automatically detect the anatomical landmarks controlling the spine model deformation through a hierarchical and gradual iterative process. The performance assessment used a set of 68 biplanar radiographs, composed of both asymptomatic subjects and adolescent idiopathic scoliosis patients, in order to compare automated reconstructions with ground truths build using multiple experts-supervised reconstructions. The mean (SD) errors of landmark locations (3D Euclidean distances) were 1.6 (1.3) mm, 1.8 (1.3) mm, and 2.3 (1.4) mm for the vertebral body center, endplate centers, and pedicle centers, respectively. The clinical parameters extracted from the automated 3D reconstruction (reconstruction time is less than one minute) presented an absolute mean error between 2.8° and 4.7° for the main spinal parameters and between 1° and 2.1° for pelvic parameters. Automated and expert's agreement analysis reported that, on average, 89% of automated measurements were inside the expert's confidence intervals. The proposed automated 3D spine reconstruction method provides an important step that should help the dissemination and adoption of 3D measurements in clinical routine.
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21
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Chuong MC, Kelley CJ, Muhammad Y, Caputo TD, Gomes JM, Oliveira D, Peixoto AC, Pereira BS, Rizg W, Vazquez C, Zacaron TM, Nguyen S, Williams DA. Investigating effect of water of hydration on active pharmaceutical ingredients in a water-sensitive dosage form. J Anal Sci Technol 2018. [DOI: 10.1186/s40543-018-0135-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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22
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Torres A, Lopez Boo F, Parra V, Vazquez C, Segura-Pérez S, Cetin Z, Pérez-Escamilla R. Chile Crece Contigo: Implementation, results, and scaling-up lessons. Child Care Health Dev 2018; 44:4-11. [PMID: 29235169 DOI: 10.1111/cch.12519] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 06/01/2017] [Accepted: 08/15/2017] [Indexed: 11/27/2022]
Abstract
BACKGROUND Chile Crece Contigo (ChCC) is defined as a comprehensive, intersectoral, and multicomponent policy that aims to help all children reach their full potential for development, regardless of their socio-economic status. METHODS This case study was developed on the basis of grey literature review and key informants' interviews. RESULTS ChCC behaves as a complex adaptive system that combines universal and targeted benefits for the more vulnerable starting since gestation and until the children are 4 years old. Three key ministries are involved in ChCC management: health, education, and social development. Studies show adequate programme implementation and positive effects of ChCC on child development. In addition, it was found that the more families use ChCC benefits and the longer the subsystem has been operating in the commune, the greater the positive effects. CONCLUSIONS Strong political support based on principles of equity and child rights combined with strong evidence and funding commitment from government has been central to emergence, scaling up, and sustainability of ChCC. Further sustainability of ChCC will rely on firmly establishing a well-trained and compensated cadre of early child development professionals and paraprofessionals as well as an improved management and evaluation decentralized system.
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Affiliation(s)
- A Torres
- Programa Chile Crece Contigo, Ministerio de Desarrollo Social, Gobierno de Chile, Santiago, Chile
| | - F Lopez Boo
- Interamerican Development Bank, Washington, DC, USA
| | - V Parra
- Teachers College, Columbia University, New York, NY, USA
| | - C Vazquez
- Fundación CENIT, Buenos Aires, Argentina
| | | | - Z Cetin
- Yale School of Public Health, New Haven, CT, USA
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23
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Szmulewicz AG, Angriman F, Pedroso FE, Vazquez C, Martino DJ. Long-Term Antipsychotic Use and Major Cardiovascular Events: A Retrospective Cohort Study. J Clin Psychiatry 2017; 78:e905-e912. [PMID: 28406267 DOI: 10.4088/jcp.16m10976] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 10/05/2016] [Indexed: 10/19/2022]
Abstract
OBJECTIVE Chronic treatment with antipsychotics may result in both metabolic side effects and cardiovascular disease. Our aim was to evaluate the effect of antipsychotic medications categorized by their metabolic side effect profiles as low, intermediate, or high risk on major cardiovascular events. METHODS A retrospective cohort study was conducted in adult outpatients aged 30 years or older initiating antipsychotic treatment from 2002 to 2007. Antipsychotic medications were divided into 3 groups (low-, intermediate-, and high-risk) according to the severity of their side-effect profiles in developing metabolic abnormalities associated with cardiovascular disease. The primary outcome measure was the time to the composite of acute myocardial infarction, acute coronary syndrome, ischemic stroke, peripheral artery disease, or a new revascularization procedure. Inverse probability weighting of a marginal structural Cox model was used to adjust for confounding. RESULTS A total of 1,008 patients were included (mean age = 72.4 years, median follow-up = 36.5 months), and 19.6% of patients experienced the primary outcome. The adjusted hazard ratios of a major cardiovascular event for patients in the high- or intermediate-risk medication groups compared to the low-risk group were 2.82 (95% CI, 1.57-5.05) and 2.57 (95% CI, 1.43-4.63), respectively. CONCLUSIONS Older adult patients under antipsychotic regimens with high or intermediate risk of metabolic side effects may face a higher incidence of major cardiovascular events than those under a low-risk regimen during long-term follow-up.
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Affiliation(s)
- Alejandro G Szmulewicz
- Hospital de Emergencias Psiquiátricas Torcuato de Alvear, Pharmacology Department, School of Medicine, University of Buenos Aires, Paraguay 2155, Ciudad Autónoma de Buenos Aires, Argentina, C1121. .,Bipolar Disorder Program, Neurosciences Institute, Favaloro University, Buenos Aires, Argentina.,Hospital de Emergencias Psiquiátricas Torcuato de Alvear, Buenos Aires, Argentina.,Department of Pharmacology, University of Buenos Aires, Buenos Aires, Argentina
| | - Federico Angriman
- Department of Pharmacology, University of Buenos Aires, Buenos Aires, Argentina.,Harvard T. H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Felipe E Pedroso
- Harvard T. H. Chan School of Public Health, Boston, Massachusetts, USA.,New York Presbyterian Hospital, Columbia University Medical Center, Department of General Surgery, New York, New York, USA
| | - Carolina Vazquez
- Department of Internal Medicine, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.,Pharmacology Section, Department of Internal Medicine, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Diego J Martino
- Bipolar Disorder Program, Neurosciences Institute, Favaloro University, Buenos Aires, Argentina.,National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
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24
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Pastor M, Vazquez C, Quintana-Gallego M, Delgado I, Carro LM, Sanz V, Aguilar A, Girón-Moreno R, Luna C, Villa J, Prados C, Barrio M, Gartner S, Asensio O, Escribano A, Cols M, Gómez A, Pijoan J. 412 Spanish multicentre registry-based study on the phenotype of patients with cystic fibrosis carrying the V232D (c.695T>A) mutation. J Cyst Fibros 2017. [DOI: 10.1016/s1569-1993(17)30742-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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25
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González AP, Juega J, Vazquez C, Hernández-Gallego A, López D, Cañas L, Bancu I, Bonet J, Lauzurica R. Late Onset of Cholesterol Embolism Leading to Graft Failure After Renal Transplantation: Report of Two Cases. Transplant Proc 2016; 47:2361-3. [PMID: 26518927 DOI: 10.1016/j.transproceed.2015.09.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Cholesterol-crystal embolization (CE) usually presents as an acute or subacute multisystemic disease. When affecting native kidneys prognosis is poor, often leading to chronic kidney disease. Presentation in renal allografts is a rare condition although probably underdiagnosed. If renal CE originates from the recipient, allograft survival is usually good, whereas if the donor is the origin, graft dysfunction and subsequent graft loss are common. Associated risk factors are common to native and transplanted kidneys. We report 2 renal graft recipients of different cadaveric donors, both male and 68 years old, diagnosed with CE in renal grafts at 19 and 72 months after transplantation, respectively. They presented previous risk factors for CE, including severe atherosclerosis. They presented insidious and asymptomatic impairment of renal function initially. Renal graft biopsy specimens showed CE in the interlobular arteries. Potential triggers for CE were suspended and high doses of steroids were started. However, progressive decline in renal function and requirement of chronic dialysis occurred within the first year after diagnosis in both cases. Herein we discuss the causal or incidental role of CE in the graft failure of these cases, highlighting the serious outcome despite the recipient origin of the CE and the initiation of treatment.
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Affiliation(s)
- A P González
- Nephrology Department of the University Hospital "GermansTrias I Pujol", Badalona, Spain
| | - J Juega
- Nephrology Department of the University Hospital "GermansTrias I Pujol", Badalona, Spain
| | - C Vazquez
- Nephrology Department of the University Hospital "GermansTrias I Pujol", Badalona, Spain
| | - A Hernández-Gallego
- Department of Pathological Anatomy of the University Hospital "Germans Trias I Pujol", Badalona, Spain
| | - D López
- Department of Pathological Anatomy of the University Hospital "Germans Trias I Pujol", Badalona, Spain
| | - L Cañas
- Nephrology Department of the University Hospital "GermansTrias I Pujol", Badalona, Spain; REDinREN 12/0021/0027, Fundación Jiménez Díaz Hospital, Madrid, Spain
| | - I Bancu
- Nephrology Department of the University Hospital "GermansTrias I Pujol", Badalona, Spain
| | - J Bonet
- Nephrology Department of the University Hospital "GermansTrias I Pujol", Badalona, Spain; REDinREN 12/0021/0027, Fundación Jiménez Díaz Hospital, Madrid, Spain
| | - R Lauzurica
- Nephrology Department of the University Hospital "GermansTrias I Pujol", Badalona, Spain; REDinREN 12/0021/0027, Fundación Jiménez Díaz Hospital, Madrid, Spain.
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Abstract
CYP2B6 is a highly polymorphic isoenzyme involved in the metabolism of many drugs including cyclophosphamide, bupropion, and efavirenz. A single nucleotide polymorphism (SNP) in CYP2B6 (516G>T) resulted in decreased expression and function associated with the CYP2B6*6 haplotype. Among the clinical implications of this phenotype, decreased activation of cyclophosphamide and increased plasma levels of efavirenz associated with increased central nervous system toxicity have been reported. The frequency of the CYP2B6 (516G>T) SNP has been studied in several different populations, but there is no data regarding distribution among Argentinians. In this study, 102 DNA samples from healthy volunteers were analyzed using a polymerase chain reaction-restriction fragment length polymorphism reaction specific for the CYP2B6 (516G>T) SNP. Our results showed a prevalence of 71.08% for the G allele and 28.92% for the T allele. This was distributed as 52.9% for the GG genotype (reduced dosage required), 36.6% for the GT genotype (normal dosage range), and 10.8% for the TT genotype (high drug toxicity). There was no preferential gender distribution observed. The relatively high prevalence of the TT genotype in our population supports the clinical use of genotyping as an additional tool in personalized medicine.
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Affiliation(s)
- P Scibona
- Clinical Pharmacology Section, Internal Medicine Service, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.,Instituto de Ciencias Básicas y Medicina Experimental, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - C Vazquez
- Clinical Pharmacology Section, Internal Medicine Service, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - A R Cajal
- Instituto de Ciencias Básicas y Medicina Experimental, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - P F Argibay
- Instituto de Ciencias Básicas y Medicina Experimental, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - W H Belloso
- Clinical Pharmacology Section, Internal Medicine Service, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
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Regueira M, Vazquez C, Gomez F, Perna A. Evaluation of interferon beta therapy for multiple sclerosis funded by the national resources fund in Uruguay in the period 2009-2014. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.1107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Perna A, Hackembruch H, Vazquez C, Guecaimburu R, Rozada R, Legnani M, Higgie J, Marques J, Repetto L, Guggeri L. Clinical and genetic characterization of Uruguayan patients suffering from muscular pathology of unknown etiology. Preliminary results. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.1216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Vazquez C, Minatta JN, Angriman F, Tchercansky AN, Orlova M, Verzura MA, Diaz Arce H, Lastiri JM, Belloso WH, Pallotta MG. Can we predict severe toxicity in patients under treatment with 5-fluorouracil? Preliminary results of a prospective cohort study. J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.15_suppl.e20667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Carolina Vazquez
- Clinical Pharmacology Section. Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Jose Nicolas Minatta
- Clinical Oncology Section. Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Federico Angriman
- Internal Medicine Department. Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | | | - Maria Orlova
- Clinical Pharmacology Section. Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Maria Alicia Verzura
- Clinical Oncology Section. Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Heidy Diaz Arce
- Molecular Biology Section. Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Jose Maria Lastiri
- Clinical Oncology Section. Hospital Italiano de Buenos Aires, Ciudad Autonoma De Buenos Aires, Argentina
| | - Waldo Horacio Belloso
- Clinical Pharmacology Section. Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
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Pinazo D, Vazquez C. The effect of meditation based on self-observation on cognitive responses in conflictive social interaction. Nordic Psychology 2014. [DOI: 10.1080/19012276.2014.935460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Ramos MD, Trujillano D, Olivar R, Sotillo F, Ossowski S, Manzanares J, Costa J, Gartner S, Oliva C, Quintana E, Gonzalez MI, Vazquez C, Estivill X, Casals T. Extensive sequence analysis of CFTR, SCNN1A, SCNN1B, SCNN1G and SERPINA1 suggests an oligogenic basis for cystic fibrosis-like phenotypes. Clin Genet 2013; 86:91-5. [PMID: 23837941 DOI: 10.1111/cge.12234] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 07/05/2013] [Accepted: 07/05/2013] [Indexed: 02/03/2023]
Abstract
The term cystic fibrosis (CF)-like disease is used to describe patients with a borderline sweat test and suggestive CF clinical features but without two CFTR(cystic fibrosis transmembrane conductance regulator) mutations. We have performed the extensive molecular analysis of four candidate genes (SCNN1A, SCNN1B, SCNN1G and SERPINA1) in a cohort of 10 uncharacterized patients with CF and CF-like disease. We have used whole-exome sequencing to characterize mutations in the CFTR gene and these four candidate genes. CFTR molecular analysis allowed a complete characterization of three of four CF patients. Candidate variants in SCNN1A, SCNN1B, SCNN1G and SERPINA1 in six patients with CF-like phenotypes were confirmed by Sanger sequencing and were further supported by in silico predictive analysis, pedigree studies, sweat test in other family members, and analysis in CF patients and healthy subjects. Our results suggest that CF-like disease probably results from complex genotypes in several genes in an oligogenic form, with rare variants interacting with environmental factors.
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Affiliation(s)
- M D Ramos
- Center for Molecular Genetic Diagnosis, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain
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Botella-Carretero JI, Balsa JA, Gómez-Martin JM, Peromingo R, Huerta L, Carrasco M, Arrieta F, Zamarron I, Martin-Hidalgo A, Vazquez C. Circulating free testosterone in obese men after bariatric surgery increases in parallel with insulin sensitivity. J Endocrinol Invest 2013; 36:227-32. [PMID: 22732238 DOI: 10.3275/8469] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND AND AIM Male hypogonadism has been linked to obesity and diabetes. We aimed to study the association of changes in insulin sensitivity and testosterone levels in severe obese patients submitted to bariatric surgery. SUBJECTS AND METHODS Prospective intervention study with twenty consecutive patients who underwent bariatric surgery studied before and after significant weight loss. Serum testosterone, SHBG, fasting glucose, and insulin were measured among others. Free testosterone was calculated with the Vermeulen formula and insulin sensitivity with the homeostatic model assessment (HOMA). RESULTS At baseline, thirteen patients had low total testosterone levels, whereas eight of these patients also had free testosterone levels below the reference range obtained from the control group. After bariatric surgery total testosterone, SHBG, and free testosterone significantly increased and achieved normal values in all evaluated patients. Insulin sensitivity improved in all of them. Multivariate linear regression showed that changes in fasting glucose (β=-1.868, p=0.001), insulin (β=-3.782, p=0.001), weight (β=-0.622, p=0.002), and SHBG (β=-0.635, p=0.022) were associated with changes in free testosterone (adjusted R2=0.936, F=26.613, p=0.001). When insulin resistance calculated by HOMA was in the model instead of insulin and glucose, it also was associated (β=-3.488, p=0.008) with free testosterone (adjusted R2=0.821, F=11.111, p=0.005). CONCLUSIONS Circulating tes tos terone in obese men increases after bariatric surgery in parallel with an improvement in insulin sensitivity.
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Affiliation(s)
- J I Botella-Carretero
- Unit of Clinical Nutrition and Obesity, Department of Endocrinology and Nutrition, Hospital Universitario Ramón y Cajal. IRYCIS, Madrid, Spain.
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Vaca S, Monroy E, Rojas L, Vazquez C, Sanchez P, Soriano-Va E, Bojesen AM, Abascal EN. Adherence of Gallibacterium anatis to Inert Surfaces. ACTA ACUST UNITED AC 2011. [DOI: 10.3923/javaa.2011.1688.1693] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Cabello A, Horoch MV, Bobadilla L, Vazquez C, Samudio M, Allende I. P1-105 Incidence of severe acute respiratory infections (SARI) and deaths associated with influenza. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976c.98] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Horch MV, Cabello A, Bobadilla L, Vazquez C, Samudio M, Allende I. SP3-87 Characterisation of sentinel surveillance of influenza-like illness (ILI) and hospital surveillance of severe acute respiratory infections (SARI) in Paraguay. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976o.87] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Vazquez C, Berrueta J, De Simone F, Tcheckmedyian A, Gonzalez N, Bernachin J, Perrota A, Curi J, Mariño A, Olano C. Small-intestinal bleeding due to metastatic renal cell cancer. Endoscopy 2011; 43 Suppl 2 UCTN:E13. [PMID: 21271517 DOI: 10.1055/s-0030-1255821] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- C Vazquez
- Gastroenterology Clinic Prof. H. Cohen, Hospital de Clínicas, Montevideo, Uruguay
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Musso CG, Jauregui R, Andresik D, Vilas M, Segalini A, Vazquez C. Sodium and urea urinary saving patterns in the elderly can change according to circumstances. Int Urol Nephrol 2011; 43:611-2. [DOI: 10.1007/s11255-011-9946-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2011] [Accepted: 03/10/2011] [Indexed: 10/18/2022]
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Burgos R, Sarto B, Segurola H, Romagosa A, Puiggros C, Vazquez C, Araujo K, Perez-Portabella C. PP141-MON TRANSLATION AND VALIDATION OF THE SPANISH VERSION OF THE EATING ASSESSMENT TOOL-10 (EAT-10) FOR THE SCREENING OF DYSPHAGIA. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/s1744-1161(11)70431-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sojo A, Vazquez C, Aldamiz-Echevarria L, Martinez N, Baranda F, Garcia A, Elorz J, Andrade F, Prieto J. Fatty acids and cystic fibrosis. J Cyst Fibros 2010. [DOI: 10.1016/s1569-1993(10)60360-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Gimenez Climent M, Merck B, Bayon A, Fliquete M, Vazquez C, Martinez C, Illueca C, Sancho Merle M, Vazquez-Albaladejo C. Sentinel node biopsy in ductal carcinoma in situ of the breast -results in 99 cases. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)70654-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Guillem V, Llombart-Cussac A, Lopez Guerrero J, Guerrero A, Fuster C, Ruiz A, Climent MA, Tena I, Vazquez C, Llombart-Bosch A. Clinical response at 4 months to neoadjuvant letrozole predicts distant disease free survival in postmenopausal women with stage II-III ER/PgR-positive breast cancer. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.10531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
10531 Background: Letrozole (L) is more active than tamoxifen in early stage ER[+] breast cancer both as adjuvant (BIG-98 trial) or neoadjuvant (LET-024) therapy. However, complete pathological remissions to neoadjuvant endocrine therapy are anecdotal (<5%), there are no new prognostic indicators with clinical implications. Methods: We have review our series of postmenopausal patients with stage II-III breast cancer ER/PgR[+] breast cancer treated in our institution with L as neoadjuvant therapy. All patients had completed 4 months of therapy (in the absence of PD), and had measurable clinical (or radiological) disease. An independent statistical analysis was conducted for disease free (DFS) and distant disease free survival (DDFS). Results: From IV/99 to XII/04, 107 patients fulfill the criteria. Median age 76 years (range 64 to 92); median tumour size 35 mm (range 25 to 100); cT2 75 (70%), cT3/4 32 (30%); cN[-] 83 (78%). The ORR (PR + CR) at 4 months was 63% (7 CR and 60 PR), 4 patients had PD as best response (4%) and 36 a SD (34%). Surgery was done in 63 patients (59%), including all non-responders. Only 2 patients received adjuvant CT. With a median follow-up of 32 month (range 8 to 66), 12 patients had relapsed (9 distant). The 3 years DFS and DDFS were 84% and 90% respectively. In univaried analysis: cN (p < 0.02), cT3/4 (p < 0.02), and clinical response at 4 months (CR) (p = 0.003) were related to DFS; and HER2 (p < 0.05), cN (p < 0.003), and CR (p = 0.007) with DDFS. Other factors like cT, HR-levels, or surgery were not significant. Multivariate analysis showed that only OR and cN remained independently predictive both for DFS and DDFS. Conclusions: Clinical response to neoadjuvant letrozole therapy is an independent predictor of distant disease free survival and could be of value to recommend or deny more aggressive therapies in addition to endocrine therapy. [Table: see text] No significant financial relationships to disclose.
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Affiliation(s)
- V. Guillem
- IVO, Valencia, Spain; Arnau de Vilanova, Lleida, Spain; Hospital Clinico, Valencia, Spain
| | - A. Llombart-Cussac
- IVO, Valencia, Spain; Arnau de Vilanova, Lleida, Spain; Hospital Clinico, Valencia, Spain
| | - J. Lopez Guerrero
- IVO, Valencia, Spain; Arnau de Vilanova, Lleida, Spain; Hospital Clinico, Valencia, Spain
| | - A. Guerrero
- IVO, Valencia, Spain; Arnau de Vilanova, Lleida, Spain; Hospital Clinico, Valencia, Spain
| | - C. Fuster
- IVO, Valencia, Spain; Arnau de Vilanova, Lleida, Spain; Hospital Clinico, Valencia, Spain
| | - A. Ruiz
- IVO, Valencia, Spain; Arnau de Vilanova, Lleida, Spain; Hospital Clinico, Valencia, Spain
| | - M. A. Climent
- IVO, Valencia, Spain; Arnau de Vilanova, Lleida, Spain; Hospital Clinico, Valencia, Spain
| | - I. Tena
- IVO, Valencia, Spain; Arnau de Vilanova, Lleida, Spain; Hospital Clinico, Valencia, Spain
| | - C. Vazquez
- IVO, Valencia, Spain; Arnau de Vilanova, Lleida, Spain; Hospital Clinico, Valencia, Spain
| | - A. Llombart-Bosch
- IVO, Valencia, Spain; Arnau de Vilanova, Lleida, Spain; Hospital Clinico, Valencia, Spain
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Affiliation(s)
- J. Balmaseda
- Institute of Materials and Reagents, University of Havana, San Lazaro and L, 10400 Havana, Cuba, and Institute of Materials Research, UNAM, Mexico, and National Center for Scientific Research, Havana, Cuba
| | - E. Reguera
- Institute of Materials and Reagents, University of Havana, San Lazaro and L, 10400 Havana, Cuba, and Institute of Materials Research, UNAM, Mexico, and National Center for Scientific Research, Havana, Cuba
| | - A. Gomez
- Institute of Materials and Reagents, University of Havana, San Lazaro and L, 10400 Havana, Cuba, and Institute of Materials Research, UNAM, Mexico, and National Center for Scientific Research, Havana, Cuba
| | - J. Roque
- Institute of Materials and Reagents, University of Havana, San Lazaro and L, 10400 Havana, Cuba, and Institute of Materials Research, UNAM, Mexico, and National Center for Scientific Research, Havana, Cuba
| | - C. Vazquez
- Institute of Materials and Reagents, University of Havana, San Lazaro and L, 10400 Havana, Cuba, and Institute of Materials Research, UNAM, Mexico, and National Center for Scientific Research, Havana, Cuba
| | - M. Autie
- Institute of Materials and Reagents, University of Havana, San Lazaro and L, 10400 Havana, Cuba, and Institute of Materials Research, UNAM, Mexico, and National Center for Scientific Research, Havana, Cuba
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Madrid AH, Rebollo JM, Del Rey JM, Gonzalo P, Socas A, Alvarez T, Rodriguez A, Correa C, Chercoles A, Vazquez C, Garcia-Cosio M, Palacios F, Moro C. Randomized comparison of efficacy of cooled tip catheter ablation of atrial flutter: anatomic versus electrophysiological complete isthmus block. Pacing Clin Electrophysiol 2001; 24:1525-33. [PMID: 11707047 DOI: 10.1046/j.1460-9592.2001.01525.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
There is a subset of patients with failed ablation of the cavotricuspid isthmus (CTI) using standard catheters and with 10% of the patients having recurrences. The purpose of this study was to compare the cooled and standard ablation with regard to acute successful electrophysiological achievement of bidirectional isthmus block and the subacute anatomic characteristics of the lesions. This randomized, experimental study compares the effects of ablation on the isthmus using a cooled catheter with those of a standard ablation catheter in 16 pigs. In 12 animals, CTI block was achieved after ablation (8/8 cooled and 4/8 standard). In two animals, it was not possible to achieve complete isthmus block and two had persistent slow conduction (all four using the standard catheter). After 1 week, the animals were slaughtered. The size of the lesion was greater with the irrigated tip catheters. Transmural lesions were found in 14 animals. A complete line of anatomic isthmus block was not documented after thefirst line in six animals, four with the standard and two with the cooled catheter. A conduction block was never present across gaps > or = 5 mm. In conclusion cooled catheters achieved a complete line of electrophysiological and anatomical block in a significantly higher percentage than the standard catheters.
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Affiliation(s)
- A H Madrid
- Cardiology Department, Ramon y Cajal Hospital, Madrid, Spain
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Miller JS, Glatzhofer DT, Vazquez C, McLean RS, Calabrese JC, Marshall WJ, Raebiger JW. Electron-transfer salts of 1,2,3,4,5-pentamethylferrocene, Fe(II)(C5Me5)(C5H5). Structure and magnetic properties of two 1:1 and two 2:3 Fe(C5Me5)(C5H5) electron-transfer salts of tetracyanoethylene. Inorg Chem 2001; 40:2058-64. [PMID: 11304150 DOI: 10.1021/ic0013983] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reaction of Fe(II)(C5Me5)(C5H5), FeCpCp, with percyano acceptors, A [A = C4(CN)6 (hexacyanobutadiene), TCNQF4 (perfluoro-7,7,8,8-tetracyano-p-quinodimethane), and DDQ (2,3-dichloro-5,6-dicyanobenzoquinone)], results in formation of 1:1 charge-transfer salts of [Fe(III)CpCp]*]*+[A]*- composition. With A = TCNQ (7,7,8,8-tetracyano-p-quinodimethane) a 1:2 electron-transfer salt with FeCpCp forms. With A = TCNE (tetracyanoethylene) a pair of 1:1 salts as well as a pair of 2:3 salts of [FeCpCp]2[TCNE]3.S (S = CH2Cl2, THF) have been isolated and characterized by single-crystal X-ray diffraction. [FeCpCp][TCNE] consists of parallel 1-D.D(*+)A(*-)D(*+)A(*-)D(*+)A(*-). chains, while [FeCpCp][TCNE].MeCN has a herringbone array of D(*+)A2(2-)D(*+) dimers separated by solvent molecules. Although each [TCNE](-) is disordered, the diamagnetic [TCNE]2(2-) dimer is structurally different from those observed earlier with an intradimer separation of 2.79 A. The [TCNE](-) in the 2:3 [FeCpCp]2[TCNE]3.S exists as an eclipsed diamagnetic [TCNE]2(2-) dimer with an intradimer ethylene C.C separation of 2.833 and 2.903 A for the CH2Cl2- and THF-containing materials, respectively. The bond distances and angles for all the cations are essentially equivalent, and the distances are essentially equivalent to those previously reported for [FeCp2](*+) and [FeCp2](*+) cations. The average Fe-C5H5-ring and Fe-C5Me5-ring centroid distances are 1.71 and 1.69 A, respectively, which are 0.05 A longer than reported for Fe(II)CpCp. The one-electron reduction potential for Fe(II)CpCp is 0.11 V (vs SCE). The 5 K EPR of [FeCpCp](*+)[BF4](-) exhibits an axially symmetric powder pattern with g(parallel) = 4.36 and g(perpendicular) = 1.24, and the EPR parameters are essentially identical to those reported for ferrocenium and decamethylferrocenium. The high-temperature magnetic susceptibility for polycrystalline samples of these complexes can be fit by the Curie-Weiss law, chi = C/(T - theta), with low theta values and mu(eff) values from 2.08 to 3.43 mu(B), suggesting that the polycrystalline samples measured had varying degrees of orientation. [FeCpCp][TCNE] exhibits the highest effective moment of 3.43 mu(B)/Fe and weak ferromagnetic coupling, as evidenced from the theta of 3.3 K; however, unexpectedly, it does not magnetically order above 2 K. The formation of the four phases comprising FeCpCp and TCNE emphasizes the diversity of materials that may form and the present inability to predict neither solid-state compositions nor structure types.
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Affiliation(s)
- J S Miller
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112-0850, USA
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Vazquez C, Anesetti G, Martinez Palma L. Transient expression of nitric oxide synthase in the hypoglossal nucleus of the rat during early postnatal development. Neurosci Lett 1999; 275:5-8. [PMID: 10554971 DOI: 10.1016/s0304-3940(99)00686-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The present study investigates the presence of nitric oxide synthase (NOS) by the nicotinamide adenine dinucleotide phosphate-diaphorase (NADPH-d) histochemical reaction and immunohistochemistry with neuronal NOS (nNOS) antibody during postnatal development of hypoglossal nucleus (XII) in the rat. Our results showed that the enzyme expression was limited to a subset of cells in the dorsal division of the nucleus. Retrogradely labeling with diamidino yellow (DY) from the tongue indicates that these cells were motoneurons. NOS expression was transient, being detectable during the first 3 postnatal weeks, suggesting a role for nitric oxide in the development and maturation of this subset of cranial motoneurons.
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Affiliation(s)
- C Vazquez
- Institute of Neurology, Clinical Hospital, Montevideo, Uruguay
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Abstract
PURPOSE In patients with unilateral iliac disease, a less invasive procedure than aortobifemoral bypass grafting may be desirable, especially in poor-risk patients or when sexual dysfunction is feared. In these cases, femorofemoral (FF) bypass grafting is often proposed. Compared with FF bypass grafting, iliofemoral (IF) bypass grafting avoids bilateral exposure of the groins, which may reduce the risk of infection. When the primitive iliac artery is occluded from its origin or heavily calcified, one may use the contralateral artery as inflow, after a small retroperitoneal exposure, to perform a crossover iliofemoral (CIF) bypass grafting procedure, through the Retzius space. Our 10-year experience with CIF bypass grafting in a select group of patients was studied. METHODS Between 1986 and 1996, 36 patients underwent CIF bypass grafting for symptomatic unilateral iliac occlusion or stenosis. All patients were examined by means of Doppler ultrasound scanning and underwent bilateral multiplane angiography. Patients were considered for this procedure when the ipsilateral common iliac artery was occluded from its origin or was diffusely and heavily calcified. The decision to perform a CIF bypass grafting procedure was made when no significant disease of the contralateral common iliac artery was seen, and patients who had features of contralateral iliac disease were excluded. The main outcomes were perioperative mortality and morbidity, long-term primary and secondary patency rates, and limb salvage rate. RESULTS The study included 31 men and five women, with a mean age of 58.8 years. Indications for bypass grafting were disabling claudication (26 of 36 patients, 72%) and limb-threatening ischemia (10 of 26 patients, 28%). Twelve procedures were performed simultaneously: endarterectomy of the recipient common femoral artery (n = 3), femoropopliteal bypass grafting (n = 4, 11.1%), profundoplasty (n = 4, 11%), and right internal carotid endarterectomy (n = 1). New postoperative erectile dysfunction did not develop in any of the patients. The survival rate was 97.3% at 1 year and 68.5% at 5 years. The primary and secondary patency rates were 94% and 100%, respectively, at 1 year and 76.7% and 95%, respectively, at 5 years. The limb salvage rate was 100% at 1 year and 87% at 3 years. CONCLUSION The operative mortality associated with CIF is low. The long-term primary and secondary patency rates are satisfactory, and they are lower than those reported for aortobifemoral bypass grafting. This procedure does not preclude a later performance of an aortobifemoral bypass grafting procedure. CIF bypass grafting is not only suitable for poor-risk patients with a limited life expectancy who have the appropriate arterial anatomy, but also may be warranted for young patients in whom erectile dysfunction is feared.
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Affiliation(s)
- J O Defraigne
- Department of Cardiovascular Surgery, University Hospital of Liège, Belgium
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Kolls JK, Habetz S, Shean MK, Vazquez C, Brown JA, Lei D, Schwarzenberger P, Ye P, Nelson S, Summer WR, Shellito JE. IFN-gamma and CD8+ T cells restore host defenses against Pneumocystis carinii in mice depleted of CD4+ T cells. J Immunol 1999; 162:2890-4. [PMID: 10072538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Host defenses against infection are profoundly compromised in HIV-infected hosts due to progressive depletion of CD4+ T lymphocytes and defective cell-mediated immunity. Although recent advances in antiretroviral therapy can dramatically lower HIV viral load, blood CD4+ T lymphocytes are not restored to normal levels. Therefore, we investigated mechanisms of host defense other than those involving CD4+ T lymphocytes against a common HIV-related opportunistic infection, Pneumocystis carinii (PC) pneumonia. Using CD4-depleted mice, which are permissive for chronic PC infection, we show that up-regulation of murine IFN-gamma by gene transfer into the lung tissue results in clearance of PC from the lungs in the absence of CD4+ lymphocytes. This resolution of infection was associated with a >4-fold increase in recruited CD8+ T lymphocytes and NK cells into the lungs. The role of CD8+ T cells as effector cells in this model was further confirmed by a lack of an effect of IFN-gamma gene transfer in scid mice or mice depleted of both CD4+ and CD8+ T cells. Cytokine mRNA analysis revealed that recruited, lung-derived CD8+ T cells had greater expression of IFN-gamma message in animals treated with the IFN-gamma gene. These results indicate that CD8+ T cells are capable of clearing PC pneumonia in the absence of CD4+ T cells and that this host defense function of CD8+ T cells, as well as their cytokine repertoire, can be up-regulated through cytokine gene transfer.
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Affiliation(s)
- J K Kolls
- Section of Pulmonary/Critical Care, Gene Therapy Program, and Section of Hematology/Oncology, Louisiana State University Medical Center School of Medicine, New Orleans, LA 70112, USA.
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Vazquez C, Sakalihasan N, D'Harcour JB, Limet R. Routine ultrasound screening for abdominal aortic aneurysm among 65- and 75-year-old men in a city of 200,000 inhabitants. Ann Vasc Surg 1998; 12:544-9. [PMID: 9841684 DOI: 10.1007/s100169900198] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Unruptured abdominal aortic aneurysm (AAA) is seldom recognized. Thus it is difficult to know whether the incidence of AAA in the general population is high enough to warrant routine screening at least in men after a certain age. Ultrasound screening studies to evaluate the incidence of AAA have been carried out in several English-speaking and Scandinavian countries. The purpose of this report is to describe the results of a study carried out in Belgium. All 65- and 75-year-old men living in the city of Liege, Belgium, were given the opportunity to undergo a free ultrasound examination. Only 41% of the target population was examined. AAA defined as abdominal aortic diameter of >30 mm was observed in 28 subjects (incidence: 3.8%). Mean abdominal aortic diameter was 34.7 mm. A diameter >29 mm was observed in 33 subjects (incidence 4.5%). Mean abdominal aortic diameter was 30.4 mm. On the basis of epidemiological data collected, a high-risk population for AAA was identified. Arterial hypertension (p < 0.05), previous coronary artery surgery (p < 0.05), and smoking (p < 0.06) were more common in subjects with than without AAA. The overall cost of screening was $18.175. The cost per AAA diagnosed was $551.00.
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Affiliation(s)
- C Vazquez
- Departments of Cardiovascular Surgery and Medical Imaging, Sart-Tilman University Hospital Center, Liege, Belgium
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Illueca C, Vazquez C, Hernández C, Viqueira V. The use of Newton's rings for characterising ophthalmic lenses. Ophthalmic Physiol Opt 1998; 18:360-71. [PMID: 9829108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The interference technique of Newton's Rings is widely used for the quality control of optical surfaces because the precision obtained with this method proves to be very satisfactory. The dimensions of the rings permits calculation of the radii of curvature of the analysed surfaces and deformation of the interference pattern can be utilised to calculate other parameters, such as astigmatism. We describe the study of progressive surfaces by means of this technique, whereby the analysis of the various points of the progressive corridor is made, and also include information on the power function for these lenses, as well as the addition and corridor length.
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Affiliation(s)
- C Illueca
- Departamento Interuniversitario de Optica, Sección Alicante, Universidad de Alicante, España
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