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1.
Pediatr Surg Int ; 39(1): 118, 2023 Feb 11.
Artigo em Inglês | MEDLINE | ID: mdl-36773111

RESUMO

PURPOSE: There is still debate over the safest route for the placement of long-term central venous access devices. The aim of this study was to review a large, single-institution experience to determine the impact of access location on peri-operative complications. METHODS: The records of patients undergoing subcutaneous port (SQP) and tunneled catheter insertion over a seven-year period were reviewed. Vein cannulated (subclavian (SCV) versus internal jugular (IJ) vein), and 30-day complications were assessed. Surgical complications included pneumothorax, hemothorax, infections, arrhythmia or malpositioning requiring intervention. RESULTS: A total of 1,309 patients were included (618 SQP, 691 tunneled catheters). The location for insertion was SCV (909, 69.4%) and IJ (400, 30.6%). There were 69 complications (5.2%) (41, 4.5% SCV, 28, 7.0% IJV) including: malpositioning/malfunctioning (SCV 13, 1.4% and IJV 14, 3.0%), pneumothorax (SCV 4, 0.4% and IJV 1, 0.3%), hemothorax (SCV 0 and IJV 1, 0.3%), arrhythmia (SCV 1, 0.1%, and IJV 0), and infection within 30 days of placement (SCV 20, 2.2% and IJ 11, 2.8%). The complication rates were not significantly different based on site (p = 0.080). CONCLUSION: There was no significant difference in complication rates when using the subclavian versus the internal jugular vein as the site for long-term central venous access. LEVEL OF EVIDENCE: III, retrospective comparative study.


Assuntos
Cateterismo Venoso Central , Cateteres Venosos Centrais , Pneumotórax , Humanos , Veia Subclávia , Cateterismo Venoso Central/efeitos adversos , Estudos Retrospectivos , Pneumotórax/epidemiologia , Pneumotórax/etiologia , Hemotórax , Veias Jugulares , Cateteres Venosos Centrais/efeitos adversos
2.
J Community Health ; 47(1): 17-27, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34244918

RESUMO

Intimate partner violence (IPV) is an important public health concern with higher prevalence among women. Community health workers (CHWs) are trusted frontline public health workers that bridge gaps between communities and healthcare services. Despite their effectiveness in delivering services and improving outcomes for different chronic conditions, there is a dearth of understanding regarding CHW management of IPV. The purpose of this study is to examine knowledge, attitudes, practices, and readiness to manage IPV among a sample of CHWs (n = 152). Participants completed an online version of the Physician Readiness to Manage Intimate Partner Violence Survey (PREMIS), which was modified for CHW practice. Psychometrics of the newly adapted tool, along with empirical relationships between knowledge, attitudes, and readiness to manage IPV were examined. Most sub-scales yielded moderate to high reliability (0.70 < α's < 0.97), some sub-scales had low reliability (0.57 < α's < 0.64), and construct validity was established for several of the subscales. On average, many CHWs had low scores on objective knowledge of IPV (mean = 15.4 out of 26), perceived preparation to manage IPV (mean = 3.8 out of 7), and perceived knowledge of IPV (mean = 3.7 out of 7). About 56% of CHWs indicated having no previous IPV training, 34% did not screen for IPV, and 65% were in the contemplation stage of behavior change. Multiple regression models indicated that knowledge, staff capabilities and staff preparation were significant predictors of perceived preparedness to manage IPV (all p's < 0.05). Results can inform future credentialing requirements and training programs for CHWs to better assist their clients who are victims of IPV.


Assuntos
Conhecimentos, Atitudes e Prática em Saúde , Violência por Parceiro Íntimo , Agentes Comunitários de Saúde , Feminino , Humanos , Psicometria , Reprodutibilidade dos Testes , Inquéritos e Questionários
3.
Curr Opin Ophthalmol ; 32(5): 494-497, 2021 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-34397578

RESUMO

PURPOSE OF REVIEW: It is important for ophthalmologists to keep current with up-to-date recommendations for screening, treating, and follow-up of infants with retinopathy of prematurity (ROP). This paper will review updated ROP Safety Net protocols and Policy Statements to stress that following risk management principles can avoid claims that could arise from poor visual outcomes. RECENT FINDINGS: Ophthalmic Mutual Insurance Company (OMIC) has been proactive in ROP risk management with development of the ROP Safety Net in 2006. The most recent updates in 2018 and 2019 address OMIC's claims experience and the factors leading to these claims. Clinical, systems, physician, and parent factors will be clarified. In addition, when to stop ROP screening has evolved and will be delineated and discussed to further aid in the process of care of these high-risk infants. SUMMARY: Ophthalmologists that screen and treat infants with ROP must keep updated with safety net protocols and institute them in their Neonatal Intensive Care Units (NICU) and offices as they take care of these babies to minimize legal risks from a claim. In addition, keeping up with policy statements is essential to successfully following these infants in the most appropriate fashion.


Assuntos
Retinopatia da Prematuridade , Gestão de Riscos , Assistência ao Convalescente/normas , Atenção à Saúde , Humanos , Lactente , Recém-Nascido , Unidades de Terapia Intensiva Neonatal , Responsabilidade Legal , Retinopatia da Prematuridade/diagnóstico , Retinopatia da Prematuridade/terapia , Fatores de Risco , Gestão de Riscos/legislação & jurisprudência , Gestão de Riscos/normas
4.
Pediatr Hematol Oncol ; 38(5): 420-433, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-33792484

RESUMO

Success rates of lumbar punctures (LPs) in children are reportedly as low as 50%. In addition to procedural complications and failure, difficult LPs are a risk factor for traumatic LPs (TLPs), which can potentially affect diagnostic utility and alter treatment plans for pediatric oncology patients. To identify the intrinsic factors associated with technically difficult LPs in the pediatric oncology population, we performed a retrospective review of patients who required diagnostic imaging modalities for LP procedures at a single pediatric oncology institution between September 2008 and November 2018. We evaluated data from 64 LPs performed in 33 patients who were referred for image-guided LPs after undergoing technically difficult LPs that were unsuccessful using anatomic landmarks. In these cases, 96.9% of patients had at least one of the following intrinsic factors: body mass index (BMI) ≥ 25, anatomic spinal abnormalities, history of ≥ 5 previous LPs, age < 12 months, and history of back surgery. Elevated BMI was the most common factor associated with difficult LP (81.8%), followed by spinal abnormalities (51.5%), and history of ≥ 5 previous LPs (33.3%). Age < 12 months and history of back surgery were also associated with difficult LPs, but at a lower frequency. On the basis of these findings, we propose clinical recommendations for preprocedural identification of patients at risk of difficult LPs to reduce complications, including TLP, failure, and exposure to general anesthesia.


Assuntos
Biópsia Guiada por Imagem , Neoplasias/diagnóstico , Punção Espinal , Adolescente , Causalidade , Criança , Pré-Escolar , Feminino , Humanos , Biópsia Guiada por Imagem/efeitos adversos , Biópsia Guiada por Imagem/métodos , Lactente , Masculino , Estudos Retrospectivos , Fatores de Risco , Punção Espinal/efeitos adversos , Punção Espinal/métodos , Adulto Jovem
5.
Health Promot Pract ; 22(2): 193-203, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-31394957

RESUMO

Students with chronic health conditions miss more school days than their peers and are at increased risk for performing worse on standardized tests and not completing a high school degree. University-based researchers, state government leaders, and a local county school system collaborated to use existing health and academic data to (1) evaluate the strength of the relationship between health status and school performance (absenteeism, grades) and (2) describe the health status of students who are chronically absent. Analyses included descriptive statistics, chi-square tests, negative binomial regression models, and estimated marginal means. The most common health conditions among the 3,663 kindergarten through Grade 12 students were ADD (attention deficit disorder)/ADHD (attention deficit hyperactivity disorder), asthma, migraine headaches, mental health conditions, and eczema/psoriasis/skin disorders. After controlling for covariates, having asthma or a mental health diagnosis was positively associated with absences; and having an ADD/ADHD or mental health diagnosis was negatively associated with GPA (grade point average). Chronically absent students had significantly lower GPAs, and a higher number of health conditions than other students. The success of this demonstration project encourages strengthening existing collaborations and establishing new multidisciplinary partnerships to analyze existing data sources to learn more about the relationship between student health and academic achievement. Moreover, connecting health status to academic achievement might be a chief tactic for advocating for additional resources to improve the care and management of chronic disease conditions among students.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade , Estudantes , Logro , Escolaridade , Humanos , Instituições Acadêmicas
6.
J Public Health Manag Pract ; 25(1): E11-E16, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-29324567

RESUMO

OBJECTIVE: Evaluate an electronic health record (EHR) implementation across a large public health department to better understand and improve implementation effectiveness of EHRs in public health departments. DESIGN: A survey based on Consolidated Framework for Implementation Research constructs was administered to staff before and after implementation of an EHR. SETTING: Large suburban county department of health and human services that provides clinical, behavioral, social, and oral health services. PARTICIPANTS: Staff across 4 program areas completed the survey prior to EHR implementation (n = 331, June 2014) and 3 months post-EHR final implementation (n = 229, December 2015). INTERVENTION: Electronic health record MAIN OUTCOME MEASURES:: Constructs were validated using confirmatory factor analysis and included information strengths and information gaps in the current environment; EHR impacts; ease of use; future use intentions; usefulness; knowledge of system; and training. Paired t tests and Wilcoxon signed rank tests of a matched sample were performed to compare the pre-/postrespondent scores. RESULTS: A majority of user perceptions and expectations showed a significant (P < .05) decline 3 months postimplementation as compared with the baseline with variation by service area and construct. Staff perceived the EHR to be less useful and more complex, provide fewer benefits, and reduce information access shortly after implementation. CONCLUSIONS: Electronic health records can benefit public health practices in many ways; however, public health departments will face significant challenges incorporating EHRs, which are typically designed for non-public health settings, into the public health workflow. Electronic health record implementation recommendations for health departments are provided. When implementing an EHR in a public health setting, health departments should provide extensive preimplementation training opportunities, including EHR training tailored to job roles, competencies, and tasks; assess usability and specific capabilities at a more granular level as part of procurement processes and consider using contracting language to facilitate usability, patient safety, and related evaluations to enhance effectiveness and efficiencies and make results public; apply standard terminologies, processes, and data structures across different health department service areas using common public health terminologies; and craft workforce communication campaigns that balance potential expected benefits with realistic expectations.


Assuntos
Registros Eletrônicos de Saúde/normas , Desenvolvimento de Programas/métodos , População Suburbana/estatística & dados numéricos , United States Public Health Service/normas , Registros Eletrônicos de Saúde/tendências , Humanos , Inquéritos e Questionários , Estados Unidos
7.
World J Urol ; 35(4): 633-640, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27484204

RESUMO

BACKGROUND: We analyzed oncological outcomes in patients who underwent percutaneous renal cryoablation (PRC) with documented renal cell carcinoma (RCC) by perioperative biopsy. METHODS: Multicenter retrospective analysis of 153 patients [median follow-up 48 months] who underwent PRC from 09/2005 to 08/2014 was performed. We divided the cohort into patients who developed recurrence versus no recurrence. Kaplan-Meier analyses examined recurrence-free survival (RFS) according to grade and histology. Multivariable analysis (MVA) was performed to identify factors associated with tumor recurrence. RESULTS: One hundred and fifty-three patients were analyzed [18 patients (11.8 %) with recurrence and 135 (88.2 %) patients without recurrence]. There were no differences between the groups with respect to demographics, RENAL score, and number of probes utilized. Recurrence group had larger tumor size (3.1 vs. 2.4 cm; p = 0.011), upper pole tumor location (p = 0.016), and greater proportions of high-grade tumor (33 vs. 0.7 %; p < 0.001) and clear cell histology (77.8 vs. 45.9 %; p = 0.011). Four-year RFS was 100 versus 80 % for grade 1 versus grade 2/3 tumors (p = 0.0002), and 97 versus 88 % for other RCC versus clear cell RCC (p = 0.07). MVA demonstrated tumor size >3 cm (OR 2.46; p = 0.019), clear cell histology (OR 2.12; p = 0.027), and high tumor grade (OR 2.33, p < 0.001) as independent risk factors associated with tumor recurrence. CONCLUSIONS: Association of higher grade and clear cell histology with recurrence and progression suggests need for increased emphasis on preoperative risk stratification by biopsy, with grade 1 and non-clear cell RCC being associated with improved treatment success than higher grade and clear cell RCC.


Assuntos
Carcinoma de Células Renais/cirurgia , Criocirurgia/métodos , Neoplasias Renais/cirurgia , Recidiva Local de Neoplasia/epidemiologia , Idoso , Biópsia , Carcinoma de Células Renais/patologia , Progressão da Doença , Intervalo Livre de Doença , Feminino , Seguimentos , Humanos , Estimativa de Kaplan-Meier , Neoplasias Renais/patologia , Masculino , Pessoa de Meia-Idade , Gradação de Tumores , Prognóstico , Estudos Retrospectivos , Fatores de Risco , Resultado do Tratamento , Carga Tumoral
8.
Wirtschaftsdienst ; 101(7): 500-504, 2021.
Artigo em Alemão | MEDLINE | ID: mdl-34305187
9.
Cancer ; 121(7): 1098-107, 2015 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-25524504

RESUMO

BACKGROUND: Tumor biopsies are central to the diagnosis and management of cancer and are critical to efforts in personalized medicine and targeted therapeutics. In the current study, the authors sought to evaluate the safety and accuracy of biopsies in children with cancer. METHODS: All biopsies performed in children at the study institution with a suspected or established diagnosis of cancer from 2003 through 2012 were reviewed retrospectively. Patient characteristics and disease-related and procedure-related factors were correlated with procedure-related complications and diagnostic accuracy using logistic regression analysis. RESULTS: A total of 1073 biopsies were performed in 808 patients. Of 1025 biopsies with adequate follow-up, 79 (7.7%) were associated with an adverse event, 35 (3.4%) of which were minor (grade 1-2) and 32 (3.1%) of which were major (grade 3-4) (grading was performed according to the National Cancer Institute Common Terminology Criteria for Adverse Events [version 4.0]). The most common major adverse events were blood transfusion (>10 mL/kg; 24 cases) and infection requiring intravenous antibiotics (6 cases). Eleven deaths (1.4%) occurred within 30 days after the procedure, but the procedure may have contributed to the outcome in only 2 cases. A total of 926 biopsies (90.3%) provided definitive histologic diagnoses. Using multivariable analysis, biopsy site, preprocedure hematocrit level, and body mass index were found to be associated with the risk of postprocedural complications (P<.0001, P<.0001, and P =.0029, respectively). Excisional biopsy and biopsy site were found to be independently associated with obtaining a diagnostic result (P =.0002 and P =.0008, respectively). CONCLUSIONS: Tumor biopsies in children with cancer are associated with a low incidence of complications and a high rate of diagnostic accuracy. The predictive factors identified for adverse outcomes may aid in risk assessment and preprocedural counseling.


Assuntos
Biópsia/efeitos adversos , Neoplasias/diagnóstico , Neoplasias/cirurgia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/mortalidade , Adolescente , Adulto , Criança , Pré-Escolar , Feminino , Seguimentos , Humanos , Lactente , Recém-Nascido , Masculino , Estadiamento de Neoplasias , Prognóstico , Segurança , Taxa de Sobrevida , Adulto Jovem
10.
Br J Haematol ; 168(6): 845-53, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25382494

RESUMO

(18) F-labelled-fluorodeoxyglucose positron emission tomography (FDG-PET) findings are challenging to interpret for residual disease versus complete response in paediatric patients with non-Hodgkin lymphoma (NHL). A biopsy is often warranted to confirm the presence or absence of viable tumour if there is clinical or radiographic evidence of residual disease. In this study, we compared conventional imaging and FDG-PET/computerized tomography (CT) findings with biopsy results in 18 children with NHL. Our goal was to provide additional data to establish more reliable criteria for response evaluation. Residual disease was suspected after conventional imaging alone in eight patients, after FDG-PET/CT alone in three and after both modalities in seven patients. Biopsy confirmed the presence of viable tumour in two patients. Two additional patients experienced progressive disease or relapse. The sensitivity and negative predictive value of FDG-PET/CT using the London criteria to indicate residual tumour detectable by biopsy were 100%, but specificity was low (60%), as was the positive predictive value (25%). Thus, in this study, a negative FDG-PET/CT finding was a good indicator of complete remission. However, because false-positive FDG-PET/CT findings are common, biopsy and close monitoring are required for accurate determination of residual disease in individual patients.


Assuntos
Linfoma não Hodgkin/diagnóstico , Adolescente , Biópsia , Criança , Pré-Escolar , Progressão da Doença , Fluordesoxiglucose F18 , Humanos , Linfoma não Hodgkin/patologia , Imagem Multimodal/métodos , Neoplasia Residual , Tomografia por Emissão de Pósitrons/métodos , Valor Preditivo dos Testes , Prognóstico , Compostos Radiofarmacêuticos , Estudos Retrospectivos , Sensibilidade e Especificidade , Tomografia Computadorizada por Raios X/métodos , Adulto Jovem
11.
AJR Am J Roentgenol ; 205(3): 640-50; quiz 651, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26295653

RESUMO

OBJECTIVE: The purpose of this study was to determine whether clinical and imaging features can distinguish osteomyelitis from Ewing sarcoma (EWS) and to assess the accuracy of percutaneous biopsy versus open biopsy in the diagnosis of these diseases. MATERIALS AND METHODS: Three radiologists reviewed the radiographs and MRI examinations of 32 subjects with osteomyelitis and 31 subjects with EWS to determine the presence of 36 imaging parameters. Information on demographic characteristics, history, physical examination findings, laboratory findings, biopsy type, and biopsy results were recorded. Individual imaging and clinical parameters and combinations of these parameters were tested for correlation with findings from histologic analysis. The diagnostic accuracy of biopsy was also determined. RESULTS: On radiography, the presence of joint or metaphyseal involvement, a wide transition zone, a Codman triangle, a periosteal reaction, or a soft-tissue mass, when tested individually, was more likely to be noted in subjects with EWS (p ≤ 0.05) than in subjects with osteomyelitis. On MRI, permeative cortical involvement and soft-tissue mass were more likely in subjects with EWS (p ≤ 0.02), whereas a serpiginous tract was more likely to be seen in subjects with osteomyelitis (p = 0.04). African Americans were more likely to have osteomyelitis than EWS (p = 0). According to the results of multiple regression analysis, only ethnicity and soft-tissue mass remained statistically significant (p ≤ 0.01). The findings from 100% of open biopsies (18/18) and 58% of percutaneous biopsies (7/12) resulted in the diagnosis of osteomyelitis, whereas the findings from 88% of open biopsies (22/25) and 50% of percutaneous biopsies (3/6) resulted in a diagnosis of EWS. CONCLUSION: Several imaging features are significantly associated with either EWS or osteomyelitis, but many features are associated with both diseases. Other than ethnicity, no clinical feature improved diagnostic accuracy. Compared with percutaneous biopsy, open biopsy provides a higher diagnostic yield but may be inconclusive, especially for cases of EWS. Our findings underscore the need for better methods of diagnosing these disease processes.


Assuntos
Neoplasias Ósseas/diagnóstico , Imageamento por Ressonância Magnética , Osteomielite/diagnóstico , Sarcoma de Ewing/diagnóstico , Adolescente , Biópsia , Neoplasias Ósseas/diagnóstico por imagem , Criança , Pré-Escolar , Diagnóstico Diferencial , Feminino , Humanos , Interpretação de Imagem Assistida por Computador , Lactente , Masculino , Osteomielite/diagnóstico por imagem , Radiografia , Estudos Retrospectivos , Sarcoma de Ewing/diagnóstico por imagem , Adulto Jovem
13.
Health Promot Pract ; 15(2): 168-72, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24396119

RESUMO

Social media sites have become powerful and important tools for health education, promotion, and communication activities as they have dramatically grown in popularity. Social media sites also offer many features that can be used for professional development and advancement. When used wisely and prudently, social media sites and platforms offer great potential for professional development by building and cultivating professional networks, as well as sharing information to increase one's recognition and improve one's reputation. They also provide a medium for increasing one's knowledge and awareness of timely news and trends by following important organizations, opinion leaders, and influential professionals. When used unwisely and imprudently, there is the potential to delay, damage, or even destroy one's professional and personal life. In this commentary, we offer recommendations for using Facebook, LinkedIn, and Twitter for professional development and caution against online behaviors that may have negative professional consequences. In summary, we believe that the strengths and benefits of social media for professional advancement and development far outweigh the risks and encourage health promotion professionals to properly engage these powerful tools.


Assuntos
Pessoal de Saúde/educação , Mídias Sociais , Desenvolvimento de Pessoal , Educação Continuada , Pessoal de Saúde/organização & administração , Promoção da Saúde
14.
J Calif Dent Assoc ; 40(4): 323-30, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22679672

RESUMO

The link between a student's health and their ability to learn is well-established. Schools are the intersection of public health programs, dental care, and self-care. This position affords them a unique role and opportunity to enhance health literacy, including oral health literacy. This paper explores the potential of K-12 school programs and the dental profession to address oral health literacy, and, in so doing, provide future participants with essential skills to promote their oral health.


Assuntos
Educação , Educação em Saúde Bucal , Letramento em Saúde , Saúde Bucal , Adolescente , Adulto , Atitude Frente a Saúde , California , Criança , Defesa da Criança e do Adolescente , Redes Comunitárias , Assistência Odontológica , Família , Feminino , Educação em Saúde , Conhecimentos, Atitudes e Prática em Saúde , Promoção da Saúde , Humanos , Masculino , Serviços de Odontologia Escolar , Serviços de Saúde Escolar , Autocuidado , Meio Social , Ensino
15.
J Pediatr Surg ; 57(9): 229-233, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34456040

RESUMO

PURPOSE: We sought to identify clinical features associated with difficult subcutaneous port removals in children. METHODS: Ports placed between April 2014 and September 2017 at our institution were prospectively tracked for difficult removals. A case-control analysis was performed. Patients with ports that were difficult to remove (stuck; cases) were compared to biological sex and age-matched controls in a ratio of 1:3. Logistic regression determined the association between case/control status and clinical features adjusting for biological sex and age as covariates. A multivariable analysis was performed to identify independent associations. RESULTS: 57 stuck ports (28 extreme [10 endovascular intervention] and 29 moderate) and 171 controls were analyzed. Stuck ports were associated with a diagnosis of acute lymphoblastic leukemia (86% cases versus 22.2% controls; p < 0.001) and a longer placement duration (median 2.6 years [interquartile range (IQR) 2.5-2.6] versus 0.8 years [IQR 0.5-1.4]; p < 0.001). On univariate analysis, procedural and device features associated with stuck ports included subclavian access (71.9% cases versus 48.5% controls; p = 0.0126), a polyurethane versus silicone catheter (96.5% cases versus 79.9% controls; p = 0.001), and a rough catheter appearance at removal (92.6% cases versus 9.4% controls; p < 0.0001). A diagnosis of ALL and duration of line placement were associated with having a stuck port on multivariate analysis. CONCLUSION: Polyurethane central venous catheters placed for the two-year treatment of acute lymphoblastic leukemia may become difficult to remove. This constellation of factors warrants more extensive preoperative discussion of risk, endovascular backup availability, and scheduling for longer operating room time.


Assuntos
Cateterismo Venoso Central , Cateteres Venosos Centrais , Leucemia-Linfoma Linfoblástico de Células Precursoras , Estudos de Casos e Controles , Cateteres de Demora , Criança , Humanos , Poliuretanos , Estudos Retrospectivos
16.
Astrobiology ; 22(6): 685-712, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35290745

RESUMO

Cassini revealed that Saturn's Moon Enceladus hosts a subsurface ocean that meets the accepted criteria for habitability with bio-essential elements and compounds, liquid water, and energy sources available in the environment. Whether these conditions are sufficiently abundant and collocated to support life remains unknown and cannot be determined from Cassini data. However, thanks to the plume of oceanic material emanating from Enceladus' south pole, a new mission to Enceladus could search for evidence of life without having to descend through kilometers of ice. In this article, we outline the science motivations for such a successor to Cassini, choosing the primary science goal to be determining whether Enceladus is inhabited and assuming a resource level equivalent to NASA's Flagship-class missions. We selected a set of potential biosignature measurements that are complementary and orthogonal to build a robust case for any life detection result. This result would be further informed by quantifications of the habitability of the environment through geochemical and geophysical investigations into the ocean and ice shell crust. This study demonstrates that Enceladus' plume offers an unparalleled opportunity for in situ exploration of an Ocean World and that the planetary science and astrobiology community is well equipped to take full advantage of it in the coming decades.


Assuntos
Saturno , Exobiologia , Meio Ambiente Extraterreno/química , Gelo , Planetas
17.
Ann Nutr Metab ; 68(2): 128-9, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26812495

Assuntos
Oryza , Vinho , Humanos
18.
J AAPOS ; 25(4): 214.e1-214.e7, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34246763

RESUMO

PURPOSE: To report the results of a clinical study designed to evaluate the accuracy of the blinq pediatric vision scanner, which detects amblyopia and strabismus directly by means of retinal polarization scanning, unlike other vision screening devices, which infer possible disease based on detection of refractive risk factors. METHODS: Subjects 1-20 years of age were prospectively enrolled in this cross-sectional diagnostic accuracy study with planned enrollment of 200. All enrolled subjects were tested by individuals masked to the diagnosis, followed by complete ophthalmologic examination by pediatric ophthalmologists masked to the screening result. Patients previously treated for amblyopia or strabismus were analyzed separately. RESULTS: The study cohort comprised 193 subjects, 53 of whom had been previously treated, leaving 140 treatment-naïve subjects, including 65 (46%) with amblyopia or strabismus, 11 (8%) with risk factors/suspected binocular vision deficit without amblyopia/strabismus, and 64 (46%) controls. Sensitivity was 100%, with all 66 patients with referral-warranted ocular disease referred. Five patients with intermittent strabismus receiving pass results were deemed "acceptable pass" when considering patient risk factors and amblyogenic potential. Specificity was 91%, with 7 incorrect referrals. Subanalysis of children aged 2-8 years (n = 92) provided similar results (sensitivity 100%; specificity 89%). CONCLUSIONS: In this study cohort, the blinq showed very high sensitivity and specificity for detecting referral-warranted unilateral amblyopia and strabismus. Implementation of the device in vision screening programs could lead to improved rates of disease detection and reduction in false referrals.


Assuntos
Ambliopia , Erros de Refração , Estrabismo , Seleção Visual , Ambliopia/diagnóstico , Criança , Estudos Transversais , Humanos , Sensibilidade e Especificidade , Estrabismo/diagnóstico
19.
Gerontologist ; 60(4): 607-616, 2020 05 15.
Artigo em Inglês | MEDLINE | ID: mdl-31050729

RESUMO

BACKGROUND AND OBJECTIVES: The intersection of cancer, treatment, and aging accelerates functional decline. Social networks, through the provision of social support and resources, may slow the progression of functional deterioration. Socioemotional selectivity theory posits that aging and major life events, like cancer, cause an intentional social network pruning to procure and maintain emotionally fulfilling bonds, while shedding weaker, less supportive relationships. However, it is relatively unknown if such network changes impact functional impairment in cancer survivors. This study examined the relationships between changes in the egocentric social network and functional impairment in older adult cancer survivors and a similarly aged group without cancer (older adults). RESEARCH DESIGN AND METHODS: Data were analyzed from 1,481 community dwelling older adults (n = 201 cancer survivors) aged 57-85 years, from Waves 1 and 2 (2005-2006 and 2010-2011) of the National Social Life, Health and Aging Project. Associations were analyzed with multiple logistic regression. RESULTS: Cancer survivors and older adults reported similar levels of functional impairment and social network change. Adding 2 new relationships exhibited protective effects against functional impairment, irrespective of cancer status (odds ratio [OR]: 0.64, 95% confidence interval [CI]: 0.41-0.99). Declines in frequent contact were associated with higher odds of functional impairment among cancer survivors (OR: 1.92, 95% CI: 1.15-3.20). Social network components were not significantly associated with functional impairment in older adults. DISCUSSION AND IMPLICATIONS: Adding new relationships may reduce disability in older adults and increasing network contact may help cancer survivors remain independent. Social network interventions may improve quality of life for older adults.


Assuntos
Atividades Cotidianas/psicologia , Sobreviventes de Câncer/psicologia , Pessoas com Deficiência/psicologia , Rede Social , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Vida Independente , Relações Interpessoais , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Desempenho Físico Funcional , Qualidade de Vida , Apoio Social
20.
J Pediatr Surg ; 55(9): 1727-1731, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31954554

RESUMO

BACKGROUND: Management of children with pancreatic pseudocysts has historically been adopted from the adult experience where pancreatic pseudocysts greater than 6 cm are unlikely to resolve without intervention. We reviewed the clinical course of pediatric oncology patients with pancreatic pseudocysts. METHODS: A retrospective review of patients treated over a 15-year period was performed. Variables evaluated included cancer type, medications administered, clinical and imaging characteristics of the pancreatic pseudocysts, treatment and outcome. RESULTS: A total of 132 patients with a median age of 13 (IQR, 9-17) years were identified with pancreatitis. Thirty-one (23.5%) patients developed a pancreatic pseudocyst, of which 84% were associated with PEG-asparaginase treatment. The median pseudocyst size was 7.6 (IQR, 4.4-9.9) cm with 59% being greater than 6 cm. Twenty-two (71%) patients with a pancreatic pseudocyst underwent successful conservative management, while only 9 (29%) required procedural intervention including six percutaneous drainage, one of whom recurred and required surgical cyst-enteric drainage. Two other patients had primary surgical cyst-enteric drainage and one patient underwent endoscopic retrograde cholangiopancreatography with stenting. The indication for intervention was worsening pain rather than pseudocyst imaging characteristics, size or serum amylase/lipase. CONCLUSION: Most medication-induced pancreatic pseudocysts in children being treated for cancer, regardless of pseudocyst size, can be managed non-operatively or with transgastric percutaneous drainage. The need for intervention can be safely dictated by patient symptoms. LEVEL OF EVIDENCE: III.


Assuntos
Pseudocisto Pancreático/cirurgia , Criança , Drenagem , Humanos , Pâncreas/cirurgia , Estudos Retrospectivos
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