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1.
J Am Coll Radiol ; 21(6S): S292-S309, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38823951

RESUMO

Sepsis is defined as a life-threatening organ dysfunction caused by a dysregulated host response to infection. A search for the underlying cause of infection typically includes radiological imaging as part of this investigation. This document focuses on thoracic and abdominopelvic causes of sepsis. In 2017, the global incidence of sepsis was estimated to be 48.9 million cases, with 11 million sepsis-related deaths (accounting for nearly 20% of all global deaths); therefore, understanding which imaging modalities and types of studies are acceptable or not acceptable is imperative. The 5 variants provided include the most commonly encountered scenarios in the setting of sepsis along with recommendations and data for each imaging study. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision process support the systematic analysis of the medical literature from peer reviewed journals. Established methodology principles such as Grading of Recommendations Assessment, Development, and Evaluation or GRADE are adapted to evaluate the evidence. The RAND/UCLA Appropriateness Method User Manual provides the methodology to determine the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where peer reviewed literature is lacking or equivocal, experts may be the primary evidentiary source available to formulate a recommendation.


Assuntos
Medicina Baseada em Evidências , Sepse , Sociedades Médicas , Humanos , Sepse/diagnóstico por imagem , Estados Unidos , Diagnóstico por Imagem/normas
2.
AJR Am J Roentgenol ; 2024 Apr 24.
Artigo em Inglês | MEDLINE | ID: mdl-38656115

RESUMO

Progressive pulmonary fibrosis (PPF) and interstitial lung abnormalities (ILA) are relatively new concepts in interstitial lung disease (ILD) imaging and clinical management. Recognition of signs of PPF, as well as identification and classification of ILA, are important tasks during chest high-resolution CT interpretation, to optimize management of patients with ILD and those at risk of developing ILD. However, following professional society guidance, the role of imaging surveillance remains unclear in stable patients with ILD, asymptomatic patients with ILA who are at risk of progression, and asymptomatic patients at risk of developing ILD without imaging abnormalities. In this AJR Expert Panel Narrative Review, we summarize the current knowledge regarding PPF and ILA and describe the range of clinical practice with respect to imaging patients with ILD, those with ILA, and those at risk of developing ILD. In addition, we offer suggestions to help guide surveillance imaging in areas with an absence of published guidelines, where such decisions are currently driven primarily by local pulmonologists' preference.

3.
J Thorac Dis ; 16(2): 1496-1502, 2024 Feb 29.
Artigo em Inglês | MEDLINE | ID: mdl-38505050

RESUMO

Although pulmonary artery (PA) dilation is independently associated with significant morbidity and mortality in patients with pulmonary diseases irrespective of diagnosed pulmonary hypertension, its relationship with nontuberculous mycobacteria (NTM) is unknown. The Bronchiectasis and NTM Research Registry is a multicenter registry created to foster research in non-cystic fibrosis (CF) bronchiectasis and NTM lung disease. The majority of patients with non-CF bronchiectasis at Oregon Health & Science University have NTM infections. To determine the prevalence of PA dilation in these patients and its association with supplemental oxygen use, severity of bronchiectasis, tobacco use, and NTM in the sputum culture, we evaluated the chest computed tomography (CT) scans from 321 patients in a cross-sectional analysis. We measured the severity of bronchiectasis by applying modified Reiff criteria and measured the diameters of the PA and aorta (Ao), with PA dilation defined as a PA:Ao ratio >0.9. In our cohort, the mean age was 67.3 years and 83.2% were female. The mean modified Reiff score was 7.1, indicating moderate disease severity. Forty-two patients (13.1%) were found to have PA dilation. PA dilation was positively associated with the use of supplemental oxygen (P<0.001), but there was no association between PA dilation and NTM infection.

4.
Nature ; 623(7989): 927-931, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37968403

RESUMO

In recent years, certain luminous extragalactic optical transients have been observed to last only a few days1. Their short observed duration implies a different powering mechanism from the most common luminous extragalactic transients (supernovae), whose timescale is weeks2. Some short-duration transients, most notably AT2018cow (ref. 3), show blue optical colours and bright radio and X-ray emission4. Several AT2018cow-like transients have shown hints of a long-lived embedded energy source5, such as X-ray variability6,7, prolonged ultraviolet emission8, a tentative X-ray quasiperiodic oscillation9,10 and large energies coupled to fast (but subrelativistic) radio-emitting ejecta11,12. Here we report observations of minutes-duration optical flares in the aftermath of an AT2018cow-like transient, AT2022tsd (the 'Tasmanian Devil'). The flares occur over a period of months, are highly energetic and are probably nonthermal, implying that they arise from a near-relativistic outflow or jet. Our observations confirm that, in some AT2018cow-like transients, the embedded energy source is a compact object, either a magnetar or an accreting black hole.

5.
J Am Coll Radiol ; 20(5S): S224-S233, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-37236745

RESUMO

Routine chest imaging has been used to identify unknown or subclinical cardiothoracic abnormalities in the absence of symptoms. Various imaging modalities have been suggested for routine chest imaging. We review the evidence for or against the use of routine chest imaging in different clinical scenarios. This document aims to determine guidelines for the use of routine chest imaging as initial imaging for hospital admission, initial imaging prior to noncardiothoracic surgery, and surveillance imaging for chronic cardiopulmonary disease. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision process support the systematic analysis of the medical literature from peer reviewed journals. Established methodology principles such as Grading of Recommendations Assessment, Development, and Evaluation or GRADE are adapted to evaluate the evidence. The RAND/UCLA Appropriateness Method User Manual provides the methodology to determine the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where peer reviewed literature is lacking or equivocal, experts may be the primary evidentiary source available to formulate a recommendation.


Assuntos
Diagnóstico por Imagem , Sociedades Médicas , Humanos , Estados Unidos , Diagnóstico por Imagem/métodos
6.
Res Sq ; 2023 Mar 22.
Artigo em Inglês | MEDLINE | ID: mdl-36993456

RESUMO

Although pulmonary artery (PA) dilation is independently associated with significant morbidity and mortality in patients with pulmonary diseases irrespective of diagnosed pulmonary hypertension, its relationship to nontuberculous mycobacteria (NTM) is unknown. To determine the prevalence of PA dilation in patients with NTM-predominant non-CF bronchiectasis, we evaluated the chest computed tomography (CT) scans from 321 patient in the United States based Bronchiectasis and NTM Research Registry. The majority of our cohort had NTM infection. We measured the severity of bronchiectasis using modified Reiff criteria and measured the diameters of the PA and aorta (Ao), with PA dilation defined as a PA:Ao ratio > 0.9. Forty-two patients (13%) were found to have PA dilation. PA dilation was positively associated with the use of supplemental oxygen (p < 0.001), but there was no association between PA dilation and NTM infection.

8.
Int J Clin Pediatr Dent ; 16(Suppl 3): 233-239, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38268634

RESUMO

Need of the study: Schoolchildren constitute about 113.8 million (2000-2001 census) population of India and around 11,413,000 comprises schoolchildren in Rajasthan (2000-2001 census), with overall 2.4% children suffering from dietary inadequacies. In the causation of nutritional deficiency diseases, dietary inadequacies have been considered a predominant etiological factor. To overcome such dietary problems and initiate any programs for improvement in general and oral health status, the present study was undertaken in the form of a dietary record of five consecutive days among schoolchildren belonging to different geographical areas. Aim: To evaluate and compare nutritional status according to area of residence and type of institution and its possible effect on plaque and gingival status among 12-15-year-old schoolchildren of Jaipur. Materials and methods: The list of schools was collected using simple random technique in both rural and urban areas of Jaipur city. Overall, four schools were drawn randomly from the selected area (two from government and two from private). Results: In the urban area, nutrient scores (NS) were higher compared to rural areas, irrespective of the season. In contrast to this, plaque and gingival scores were higher in private schools of rural areas. Conclusion: There is a need for awareness regarding applied nutrition among schoolchildren, irrespective of the area. How to cite this article: Gaur AG, Sharma M, Sharma R, et al. Evaluation and Comparison of Nutritional Status According to Area of Residence and Type of Institute, its Effect on Plaque and Gingival Status: A Comparative Longitudinal Study. Int J Clin Pediatr Dent 2023;16(S-3):S233-S239.

9.
Nature ; 612(7940): 430-434, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36450988

RESUMO

Tidal disruption events (TDEs) are bursts of electromagnetic energy that are released when supermassive black holes at the centres of galaxies violently disrupt a star that passes too close1. TDEs provide a window through which to study accretion onto supermassive black holes; in some rare cases, this accretion leads to launching of a relativistic jet2-9, but the necessary conditions are not fully understood. The best-studied jetted TDE so far is Swift J1644+57, which was discovered in γ-rays, but was too obscured by dust to be seen at optical wavelengths. Here we report the optical detection of AT2022cmc, a rapidly fading source at cosmological distance (redshift z = 1.19325) the unique light curve of which transitioned into a luminous plateau within days. Observations of a bright counterpart at other wavelengths, including X-ray, submillimetre and radio, supports the interpretation of AT2022cmc as a jetted TDE containing a synchrotron 'afterglow', probably launched by a supermassive black hole with spin greater than approximately 0.3. Using four years of Zwicky Transient Facility10 survey data, we calculate a rate of [Formula: see text] per gigapascals cubed per year for on-axis jetted TDEs on the basis of the luminous, fast-fading red component, thus providing a measurement complementary to the rates derived from X-ray and radio observations11. Correcting for the beaming angle effects, this rate confirms that approximately 1 per cent of TDEs have relativistic jets. Optical surveys can use AT2022cmc as a prototype to unveil a population of jetted TDEs.

10.
Healthcare (Basel) ; 10(10)2022 Oct 12.
Artigo em Inglês | MEDLINE | ID: mdl-36292453

RESUMO

Addressing social determinants of health (SDoH) is associated with improved clinical outcomes for patients with chronic diseases in safety-net settings. This qualitative study supplemented by descriptive quantitative analysis investigates the degree of alignment between patient and clinicians' perceptions of SDoH resources and referrals in clinics within the public healthcare delivery system in San Francisco. We conducted a qualitative analysis of in-depth interviews, patient-led neighborhood tours, and in-person clinic visit observations with 10 patients and 7 primary care clinicians. Using a convergent parallel mixed methodology, we also completed a descriptive quantitative analysis comparing the categories of neighborhood health resources mentioned by patients or community leaders to the resources integrated into the electronic health record. We found that patients held a wealth of knowledge about neighborhood resources relevant to SDoH that were highly localized and specific to their communities. In addition, multiple stakeholders were involved in conducting SDoH screenings and referrals, including clinicians, system navigators such as case workers, and community-based organizations. Yet, the information flow between these stakeholders and patients lacked systematization, and the prioritization of social needs by patients and clinicians was misaligned, as represented by qualitative themes as well as quantitative differences in resource category distribution analysis (p < 0.001). Our results shed light upon opportunities for strengthening social care delivery in safety-net healthcare settings by improving patient engagement, clinic workflow, EHR engagement, and resource dissemination.

11.
Obstet Gynecol Surv ; 77(7): 433-444, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35792687

RESUMO

Importance: The risk of venous thromboembolism (VTE) increases during pregnancy and the postpartum period. Deep vein thrombosis is the most common VTE during pregnancy, but pulmonary embolism is typically of greater concern as it contributes to far higher morbidity and mortality. Diagnosis and treatment of VTE during pregnancy differ substantially from the general nonpregnant population. Objective: This review describes the epidemiology, risk factors, clinical presentation, diagnosis, and treatment of VTE during pregnancy and the postpartum period. Evidence Acquisition: First, we reviewed the VTE guidelines from professional societies in obstetrics, cardiology, hematology, emergency medicine, pulmonology, and critical care. Second, we examined references from these documents and used PubMed to identify recent articles that cited the guidelines. Finally, we searched PubMed and Google Scholar for articles published since 2018 that included terms for pregnancy and the epidemiology, risk factors, diagnostic imaging, or treatment of VTE. Results: Venous thromboembolism risk increases throughout pregnancy and peaks shortly after delivery. More than half of pregnancy-related VTE are associated with thrombophilia; other major risks include cesarean delivery, postpartum infection, and the combination of obesity with immobilization. Most VTE can be treated with low molecular weight heparin, but cases of limb- or life-threatening VTE require consideration of thrombolysis and other reperfusion therapies. Conclusions and Relevance: Venous thromboembolism is far more frequent in antepartum and postpartum women than age-matched controls, and clinical suspicion for VTE in this population should incorporate pregnancy-specific risks. Treatment of limb- or life-threatening antepartum or postpartum VTE requires multispecialty coordination to optimize maternal and fetal outcomes.


Assuntos
Tromboembolia Venosa , Técnicas e Procedimentos Diagnósticos/efeitos adversos , Feminino , Heparina de Baixo Peso Molecular/uso terapêutico , Humanos , Período Pós-Parto , Gravidez , Fatores de Risco , Tromboembolia Venosa/diagnóstico , Tromboembolia Venosa/epidemiologia , Tromboembolia Venosa/etiologia
12.
JAMIA Open ; 5(1): ooac014, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35571359

RESUMO

Objective: Vulnerable populations face numerous barriers in managing chronic disease(s). As healthcare systems work toward integrating social risk factors into electronic health records and healthcare delivery, we need better understanding of the interrelated nature of social needs within patients' everyday lives to inform effective informatics interventions to advance health equity. Materials and Methods: We conducted in-depth interviews, participant-led neighborhood tours, and clinic visit observations involving 10 patients with diabetes in underserved San Francisco neighborhoods and 10 community leaders serving those neighborhoods. We coded health barriers and facilitators using a socioecological framework. We also linked these qualitative data with early persona development, focusing on patients' experiences in these communities and within the healthcare system, as a starting place for our future informatics design. Results: We identified social risk and protective factors across almost every socioecological domain and level-from physical disability to household context to neighborhood environment. We then detailed the complex interplay across domains and levels within two critical aspects of patients' lives: housing and food. Finally, from these data we generated 3 personas that capture the intersectional nature of these determinants. Conclusion: Drawing from different disciplines, our study provides a socioecological approach to understanding health promotion for patients with chronic disease in a safety-net healthcare system, using multiple methodologies. Future digital health research should center the lived experiences of marginalized patients to effectively design and implement informatics solutions for this audience.

14.
Clin Imaging ; 85: 55-59, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35245860

RESUMO

Common misconceptions about radiology and radiation oncology exist and may dissuade women from pursuing these specialties. The American Association for Women in Radiology (AAWR) Medical Student Outreach Subcommittee began a multi-year social media campaign aimed at addressing these myths. Here, we outline several myths presented in this social media campaign and provide a combination of literature review and experts' opinions to deconstruct and dispel them.


Assuntos
Radioterapia (Especialidade) , Radiologia , Feminino , Humanos , Radiografia , Estados Unidos
15.
Patient Educ Couns ; 105(6): 1663-1670, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-34756473

RESUMO

OBJECTIVE: To explore physician leaders' perspectives on processes and priorities for engaging with caregivers in their clinical practices as well as within their safety net health systems. METHODS: We conducted in-depth semi-structured interviews with primary care physicians in care management leadership at three California safety net health systems. Interviews explored physicians' experiences managing medically and socially complex patients with caregivers. Using thematic analysis, two qualitative researchers independently analyzed interview transcripts and established consensus with the broader research team through iterative input to derive major themes. RESULTS: Fifteen physicians completed interviews. Nine participants were women, 8 were White and 10 reported Spanish language proficiency. Participant interviews generated six major themes: challenges uncovering caregiver identities, recognizing variation in caregivers' roles, adapting visit communication strategies to include caregivers, engaging caregivers in patient care, and caring for the caregiver. CONCLUSIONS: Engaging caregivers is challenging given the limited recognition of caregiver involvement in patient care by health systems. Adapting visit communication to include caregivers requires bridging language and literacy barriers. PRACTICE IMPLICATIONS: Developing mechanisms to enable the consistent identification of patients' caregivers, facilitate ongoing communication with caregivers, and extend support for them could improve outcomes for vulnerable patients and their families.


Assuntos
Cuidadores , Médicos , Comunicação , Feminino , Humanos , Masculino , Assistência ao Paciente , Pesquisa Qualitativa
16.
J Am Board Fam Med ; 34(4): 698-708, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34312263

RESUMO

INTRODUCTION: Social determinants of health (SDoH) influence health outcomes and contribute to disparities in chronic disease in vulnerable populations. To inform health system strategies to address SDoH, we conducted a multi-stakeholder qualitative study to capture the multi-level influences on health for those living in socio-economically deprived contexts. METHODS: Varied qualitative inquiry methods - in-depth interviews, participant-led neighborhood tours, and clinic visit observations - involving a total of 23 participants (10 patients with chronic illnesses in San Francisco neighborhoods with high chronic disease rates, 10 community leaders serving the same neighborhoods, and 3 providers from San Francisco's public health care delivery system). Qualitative analyses were guided by the Chronic Care Model (CCM). RESULTS: Several key themes emerged from this study. First, we enumerated a large array, neighborhood resources such as food pantries, parks/green spaces, and financial assistance services that interact with patients' self-management. Health service providers leveraged these resources to address patients' social needs but suggested a clear need for expanding this work. Second, analyses uncovered multiple essential mechanisms by which community-based organizations (CBOs) provided and navigated among many neighborhood health resources, including social support and culturally aligned knowledge. Finally, many examples of how structural issues such as institutional racism, transportation, and housing inequities are intertwined with health and social service delivery were elucidated. CONCLUSION: The results contribute new evidence toward the community domain of the CCM. Health care systems must intentionally partner with CBOs to address SDoH and improve community resources for chronic care management, and directly address structural issues to make progress.


Assuntos
Características de Residência , Determinantes Sociais da Saúde , Assistência Ambulatorial , Humanos , Assistência de Longa Duração , Apoio Social
17.
Ann Intern Med ; 172(11 Suppl): S123-S129, 2020 06 02.
Artigo em Inglês | MEDLINE | ID: mdl-32479176

RESUMO

Ninety percent of health care systems now offer patient portals to access electronic health records (EHRs) in the United States, but only 15% to 30% of patients use these platforms. Using PubMed, the authors identified 53 studies published from September 2013 to June 2019 that informed best practices and priorities for future research on patient engagement with EHR data through patient portals, These studies mostly involved outpatient settings and fell into 3 major categories: interventions to increase use of patient portals, usability testing of portal interfaces, and documentation of patient and clinician barriers to portal use. Interventions that used one-on-one patient training were associated with the highest portal use. Patients with limited health or digital literacy faced challenges to portal use. Clinicians reported a lack of workflows to support patient use of portals in routine practice. These studies suggest that achieving higher rates of patient engagement through EHR portals will require paying more attention to the needs of diverse patients and systematically measuring usability as well as scope of content. Future work should incorporate implementation science approaches and directly address the key role of clinicians and staff in promoting portal use.


Assuntos
Registros Eletrônicos de Saúde/estatística & dados numéricos , Letramento em Saúde/estatística & dados numéricos , Participação do Paciente/estatística & dados numéricos , Pesquisa Qualitativa , Humanos , Portais do Paciente/estatística & dados numéricos
19.
Hepatol Commun ; 2(9): 1095-1110, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30202823

RESUMO

Bone loss is common in advanced cirrhosis, although the precise mechanisms underlying bone loss in cirrhosis are unknown. We studied the profile and functionality of bone-forming cells and bone-building proteins in bone marrow (BM) of individuals with cirrhosis (n = 61) and individuals without cirrhosis as normal controls (n = 50). We also performed dual energy X-ray absorptiometry for clinical correlation. BM mesenchymal cells (MSCs) were analyzed for colony-forming units-fibroblasts and their osteogenic (fibronectin-1 [FN1], insulin-like growth factor binding protein 3 [IGFBP3], collagen type 1 alpha 1 chain [COL1A1], runt-related transcription factor 2 [RUNX2], and alkaline phosphatase, liver [ALPL]) and adipogenic ( adiponectin, C1Q, and collagen domain containing [ADIPOQ], peroxisome proliferator-activated receptor gamma [PPARγ], and fatty acid binding protein 4 [FABP4]) potentials. Colony-forming units-fibroblasts were lower in patients with cirrhosis (P = 0.002) than in controls. Cirrhotic BM-MSCs showed >2-fold decrease in osteogenic markers. Compared to controls, patients with cirrhosis showed fewer osteocytes (P = 0.05), osteoblasts, chondroblasts, osteocalcin-positive (osteocalcin+) area, clusters of differentiation (CD)169+ macrophages (P < 0.001, each), and nestin+ MSCs (P = 0.001); this was more apparent in Child-Turcotte-Pugh (CTP) class C than A (P < 0.001). Multivariate logistic regression showed low nestin+ MSCs (P = 0.004) as a predictor of bone loss. Bone-resolving osteoclasts were comparable among CTP groups, but >2-fold decreased anti-osteoclastic and increased pro-osteoclastic factors were noted in patients with CTP C compared to CTP A. Bone-building proteins (osteocalcin [P = 0.008], osteonectin [P < 0.001], and bone morphogenic protein 2 [P = 0.001]) were decreased while anti-bone repair factors (fibroblast growth factor 23 [P = 0.015] and dipeptidyl peptidase 4 [P < 0.001]) were increased in BM and peripheral blood; this was more apparent in advanced cirrhosis. The dual energy X-ray absorptiometry scan T score significantly correlated with the population of osteoblasts, osteocytes, MSCs, and CD169+ macrophages. Conclusion: Osteoprogenitor cells are substantially reduced in patients with cirrhosis and more so in advanced disease. Additionally, increased anti-bone repair proteins enhance the ineffective bone repair and development of osteoporosis in cirrhosis. Hepatology Communications 2018;0:0-0).

20.
J Thorac Imaging ; 32(6): 343-357, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-29065008

RESUMO

Over the past decade, a rapidly increasing number of new cardiac devices have been created. Remaining current with these devices and how they appear on chest radiographs and other modalities used in chest imaging can be a challenge for the interpreting radiologist. This review is provides a concise summary of various common cardiac devices as well as recently developed devices that will be increasing in frequency over the coming years.


Assuntos
Desfibriladores Implantáveis , Oxigenação por Membrana Extracorpórea/instrumentação , Coração Auxiliar , Marca-Passo Artificial , Radiografia Torácica/métodos , Substituição da Valva Aórtica Transcateter/instrumentação , Coração/diagnóstico por imagem , Humanos
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