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2.
Forensic Sci Med Pathol ; 11(4): 488-96, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-26541472

RESUMEN

PURPOSE: Interstitial fluid accumulation can occur in pleural, pericardial, and peritoneal spaces, and subcutaneous tissue planes. The purpose of the study was to assess if whole body CT examination in a postmortem setting could help determine the presence and severity of third space fluid accumulation in the body. MATERIALS AND METHODS: Our study included 41 human cadavers (mean age 61 years, 25 males and 16 females) who had whole-body postmortem CT prior to autopsy. All bodies were maintained in the morgue in the time interval between death and autopsy. Two radiologists reviewed the whole-body CT examinations independently to grade third space fluid in the pleura, pericardium, peritoneum, and subcutaneous space using a 5-point grading system. Qualitative CT grading for third space fluid was correlated with the amount of fluid found on autopsy and the quantitative CT fluid volume, estimated using a dedicated software program (Volume, Syngo Explorer, Siemens Healthcare). RESULTS: Moderate and severe peripheral edema was seen in 16/41 and 7/41 cadavers respectively. It is not possible to quantify anasarca at autopsy. Correlation between imaging data for third space fluid and the quantity of fluid found during autopsy was 0.83 for pleural effusion, 0.4 for pericardial effusion and 0.9 for ascites. The degree of anasarca was significantly correlated with the severity of ascites (p < 0.0001) but not with pleural or pericardial effusion. There was strong correlation between volumetric estimation and qualitative grading for anasarca (p < 0.0001) and pleural effusion (p < 0.0001). CONCLUSION: Postmortem CT can help in accurate detection and quantification of third space fluid accumulation. The quantity of ascitic fluid on postmortem CT can predict the extent of anasarca.


Asunto(s)
Autopsia , Líquido Extracelular/metabolismo , Tomografía Computarizada Multidetector , Imagen de Cuerpo Entero , Adulto , Anciano , Anciano de 80 o más Años , Ascitis/diagnóstico por imagen , Ascitis/patología , Bilirrubina/análisis , Cadáver , Edema/diagnóstico por imagen , Edema/patología , Femenino , Patologia Forense , Humanos , Masculino , Persona de Mediana Edad , Pericardio/diagnóstico por imagen , Pericardio/metabolismo , Pericardio/patología , Peritoneo/diagnóstico por imagen , Peritoneo/metabolismo , Peritoneo/patología , Pleura/diagnóstico por imagen , Pleura/metabolismo , Pleura/patología , Derrame Pleural/diagnóstico por imagen , Derrame Pleural/patología , Albúmina Sérica/análisis , Índice de Severidad de la Enfermedad , Tejido Subcutáneo/diagnóstico por imagen , Tejido Subcutáneo/metabolismo , Tejido Subcutáneo/patología
3.
Semin Ophthalmol ; 38(8): 777-783, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37427895

RESUMEN

PURPOSE: The purpose of this study was to evaluate two aims. The first was whether patients with a history of keratoplasty who developed COVID-19 were at a higher risk of corneal graft rejection or failure. The second was examining whether patients who underwent a new keratoplasty during the first 2 years of the pandemic from 2020-2022 were at a higher risk of the same outcomes compared to those undergoing keratoplasty from 2017-2019 before the pandemic. METHODS: A multicenter research network, TriNetX, was used to query for keratoplasty patients with or without a COVID-19 between January 2020 and July 2022. Additionally, the database was also queried to identify new keratoplasties performed from January 2020-July 2022 and compare it to keratoplasties performed during a similar pre-pandemic interval between 2017-2019. 1:1 Propensity Score Matching was utilized to adjust for confounders. Graft complication of either a rejection or failure was assessed within 120 day follow-up using the Cox proportional hazard model and survival analysis. RESULTS: A total of 21,991 patients with any keratoplasty history were identified from January 2020-July 2022, of which 8.8% were diagnosed with COVID-19. Matching revealed two balanced cohorts of 1,927 patients where no significant difference in risk of corneal graft rejection or failure among groups ((aHR [95% CI] = 0.76 [0.43,1.34]; p = .244)). Comparing first-time keratoplasties performed in a pandemic period of January 2020-July 2022 to a corresponding pre-pandemic interval from 2017-2019 also similarly revealed no differences in graft rejection or failure in matched analysis (aHR = 0.937[0.75, 1.17], p = .339). CONCLUSIONS: This study found no significant increase in the risk of graft rejection or failure in patients with a prior keratoplasty history following COVID-19 diagnosis nor in any patients who had a new keratoplasty done during 2020-2022 when compared to a similar pre-pandemic interval.

4.
BMJ Glob Health ; 6(12)2021 12.
Artículo en Inglés | MEDLINE | ID: mdl-34880061

RESUMEN

INTRODUCTION: Although women's health is prioritised in global research, few studies have identified structural barriers and strategies to promote female leadership and gender equality in the global health research workforce, especially in low-income and middle-income countries. METHODS: We conducted a mixed-methods study to evaluate gender equality in the mental health research workforce in Nepal. The scoping review assessed gender disparities in authorship of journal publications for Nepal mental health research, using databases (PsycINFO, PubMed, Web of Science, NepJol, NepMed) for 5 years. Qualitative interviews were conducted with 22 Nepali researchers to identify structural barriers limiting women's leadership. RESULTS: Of 337 articles identified, 61% were by Nepali first authors. Among Nepali first authors, 38.3% were women. Nepali women had half the odds of being first authors compared with men, when referenced against non-Nepali authors (OR 0.50, 95% CI 1.30 to 3.16). When limiting publications to those based on funded research, the odds were worse for first authorship among Nepali women (OR 0.37, 95% CI 0.19 to 0.71). The qualitative analysis supported the scoping review and identified a lack of gender-friendly organisational policies, difficulties in communication and mobility, and limited opportunities for networking as barriers to women's leadership in global health research. CONCLUSION: Efforts are needed for greater representation of Nepali women in global mental health research, which will require transformative organisational policies to foster female leadership. Those in leadership need to recognise gender inequalities and take necessary steps to address them. Funding agencies should prioritise supporting organisations with gender equality task forces, policies and indicators.


Asunto(s)
Autoria , Salud Mental , Femenino , Personal de Salud , Humanos , Masculino , Nepal , Recursos Humanos
5.
Am J Cardiol ; 123(11): 1783-1787, 2019 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-30929769

RESUMEN

Spontaneous coronary artery dissection (SCAD) is increasingly being recognized. However, data supporting diagnosis and management are scarce. We analyze a contemporary and comprehensive SCAD registry to advance the understanding of SCAD risk factors, angiographic appearance, and gender differences. This is a retrospective analysis of a prospectively populated database of SCAD patients seen at the Massachusetts General Hospital (MGH) between June 2013 and October 2017. Core laboratory analysis of both coronary angiograms and computerized tomographic (CT) angiography of the extracoronary vessels was performed. Of the 113 patients, 87% were female and mean age was 47 ± 10 years. Traditional cardiovascular risk factors including hypertension, hyperlipidemia, and smoking were present in 27%, 14%, and 22% of patients. Among females, 14%, 8%, and 9% had a history of gestational hypertension, pre-eclampsia, and gestational diabetes, respectively. Fifteen percent had used fertility treatment and 47% of postmenopausal women had used hormone replacement therapy. Angiography showed multivessel SCAD in 42%, severe coronary artery tortuosity in 59%, and extracoronary vascular abnormalities in 100% of patients with complete CT angiographic imaging. Gender differences revealed a self-reported depression and anxiety prevalence of 20% and 32%, respectively, in women compared with 0% in men. Type 1 SCAD was more commonly diagnosed in men than women (71% vs 29%, p <0.01). In conclusion, we highlight under-recognized features of SCAD including (1) relation with pregnancy complications and exposure to hormonal therapy; (2) diffuse, multivessel process in tortuous coronaries on a background of extracoronary arterial abnormalities; and (3) gender differences highlighting the role of mental health as well as potential underdiagnoses in men.


Asunto(s)
Angiografía Coronaria , Anomalías de los Vasos Coronarios/diagnóstico por imagen , Anomalías de los Vasos Coronarios/epidemiología , Enfermedades Vasculares/congénito , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Factores de Riesgo , Distribución por Sexo , Factores Sexuales , Enfermedades Vasculares/diagnóstico por imagen , Enfermedades Vasculares/epidemiología
6.
Br J Radiol ; 90(1071): 20160625, 2017 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-28055250

RESUMEN

OBJECTIVE: To assess the image quality of chest CT reconstructed with image-based iterative reconstruction (SafeCT; MedicVision®, Tirat Carmel, Israel), adaptive statistical iterative reconstruction (ASIR; GE Healthcare, Waukesha, WI) and model-based iterative reconstruction (MBIR; GE Healthcare, Waukesha, WI) techniques at CT dose index volume (CTDIvol) <1 mGy. METHODS: In an institutional review board-approved study, 25 patients gave written informed consent for acquisition of three reduced dose (0.25-, 0.4- and 0.8-mGy) chest CT after standard of care CT (8 mGy) on a 64-channel multidetector CT (MDCT) and reconstructed with SafeCT, ASIR and MBIR. Two board-certified thoracic radiologists evaluated images from the lowest to the highest dose of the reduced dose CT series and subsequently for standard of care CT. RESULTS: Out of the 182 detected lesions, the missed lesions were 35 at 0.25, 24 at 0.4 and 9 at 0.8 mGy with SafeCT, ASIR and MBIR, respectively. The most missed lesions were non-calcified lung nodules (NCLNs) 25/112 (<5 mm) at 0.25, 18/112 (<5 mm) at 0.4 and 3/112 (<4 mm) at 0.8 mGy. There were 78%, 84% and 97% lung nodules detected at 0.25, 0.4 and 0.8 mGy, respectively regardless of iterative reconstruction techniques (IRTs), Most mediastinum structures were not sufficiently seen at 0.25-0.8 mGy. CONCLUSION: NCLNs can be missed in chest CT at CTDIvol of <1 mGy (0.25, 0.4 and 0.8 mGy) regardless of IRTs. The most lung nodules (97%) were detected at CTDIvol of 0.8 mGy. The most mediastinum structures were not sufficiently seen at 0.25-0.8 mGy. Advances in knowledge: NCLNs can be missed regardless of IRTs in chest CT at CTDIvol of <1 mGy. The performance of ASIR, SafeCT and MBIR was similar for lung nodule detection at 0.25, 0.4 and 0.8 mGy.


Asunto(s)
Neoplasias Pulmonares/diagnóstico por imagen , Tomografía Computarizada Multidetector/métodos , Interpretación de Imagen Radiográfica Asistida por Computador/métodos , Radiografía Torácica/métodos , Femenino , Humanos , Pulmón/diagnóstico por imagen , Masculino , Persona de Mediana Edad
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