Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 15 de 15
Filtrar
Mais filtros

Bases de dados
País/Região como assunto
Tipo de documento
País de afiliação
Intervalo de ano de publicação
1.
Front Clin Diabetes Healthc ; 4: 1070547, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37187937

RESUMO

Background and aim: During the early stages of the COVID-19 pandemic, nationwide lockdowns caused disruption in the diets, physical activities, and lifestyles of patients with type 2 diabetes. Previous reports on the possible association between race/ethnicity, COVID-19, and mortality have shown that Hispanic/Latino patients with type 2 diabetes who are socioeconomically disadvantaged are disproportionately affected by this novel virus. The aim of this study was to explore stressors associated with changes in diabetes self-management behaviors. Our goal was to highlight the health disparities in these vulnerable racial/ethnic minority communities and underscore the need for effective interventions. Methods and participants: Participants were enrolled in part of a larger randomized controlled trial to compare diabetes telehealth management (DTM) with comprehensive outpatient management (COM) in terms of critical patient-centered outcomes among Hispanic/Latino patients with type 2 diabetes. We conducted a thematic analysis using patient notes collected from two research nurses between March 2020 and March 2021. Two authors read through the transcripts independently to identify overarching themes. Once the themes had been identified, both authors convened to compare themes and ensure that similar themes were identified within the transcripts. Any discrepancies were discussed by the larger study team until a consensus was reached. Results: Six themes emerged, each of which can be categorized as either a source or an outcome of stress. Sources of stress associated with the COVID-19 pandemic were (1) fear of contracting COVID-19, (2) disruptions from lockdowns, and (3) financial stressors (e.g., loss of income). Outcomes of COVID-19 stressors were (1) reduced diabetes management (e.g., reduced diabetes monitoring and physical activity), (2) suboptimal mental health outcomes (e.g., anxiety and depression), and (3) outcomes of financial stressors. Conclusion: The findings indicated that underserved Hispanic/Latino patients with type 2 diabetes encountered a number of stressors that led to the deterioration of diabetes self-management behaviors during the pandemic.

2.
PLoS One ; 17(8): e0267505, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35925973

RESUMO

OBJECTIVE: To evaluate racial and ethnic differences in mortality among patients hospitalized with coronavirus disease 2019 (COVID-19) after adjusting for baseline characteristics and comorbidities. METHODS: This retrospective cohort study at 13 acute care facilities in the New York City metropolitan area included sequentially hospitalized patients between March 1, 2020, and April 27, 2020. Last day of follow up was July 31, 2020. Patient demographic information, including race/ethnicity and comorbidities, were collected. The primary outcome was in-hospital mortality. RESULTS: A total of 10 869 patients were included in the study (median age, 65 years [interquartile range (IQR) 54-77; range, 18-107 years]; 40.5% female). In adjusted time-to-event analysis, increased age, male sex, insurance type (Medicare and Self-Pay), unknown smoking status, and a higher score on the Charlson Comorbidity Index were significantly associated with higher in-hospital mortality. Adjusted risk of hospital mortality for Black, Asian, Hispanic, multiracial/other, and unknown race/ethnicity patients were similar to risk for White patients. CONCLUSIONS: In a large diverse cohort of patients hospitalized with COVID-19, patients from racial/ethnic minorities experienced similar mortality risk as White patients.


Assuntos
COVID-19 , Mortalidade Hospitalar , Idoso , Etnicidade , Feminino , Mortalidade Hospitalar/etnologia , Hospitalização , Humanos , Masculino , Medicare , Pessoa de Meia-Idade , Grupos Raciais , Estudos Retrospectivos , SARS-CoV-2 , Estados Unidos , População Branca
3.
BMC Infect Dis ; 22(1): 620, 2022 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-35840929

RESUMO

BACKGROUND: Clostridiodies difficile infection (CDI) has been characterized by the Center for Disease Control and Prevention (CDC) as an urgent public health threat and a major concern in hospital, outpatient and extended-care facilities worldwide. METHODS: A retrospective cohort study of patients aged ≥ 18 hospitalized with CDI in New York State (NYS) between January 1, 2014-December 31, 2016. Data were extracted from NY Statewide Planning and Research Cooperative (SPARCS) and propensity score matching was performed to achieve comparability of the CDI (exposure) and non-CDI (non-exposure) groups. Of the 3,714,486 hospitalizations, 28,874 incidence CDI cases were successfully matched to 28,874 non-exposures. RESULTS: The matched pairs comparison demonstrated that CDI cases were more likely to be readmitted to the hospital at 30 (28.26% vs. 19.46%), 60 (37.65% vs. 26.02%), 90 (42.93% vs. 30.43) and 120 days (46.47% vs. 33.74), had greater mortality rates at 7 (3.68% vs. 2.0%) and 180 days (20.54% vs. 11.96%), with significant increases in length of stay and total hospital charges (p < .001, respectively). CONCLUSIONS: CDI is associated with a large burden on patients and health care systems, significantly increasing hospital utilization, costs and mortality.


Assuntos
Clostridioides difficile , Infecções por Clostridium , Infecção Hospitalar , Custos de Cuidados de Saúde , Hospitalização , Humanos , Tempo de Internação , Pontuação de Propensão , Estudos Retrospectivos
5.
BMJ Open ; 11(2): e042965, 2021 02 08.
Artigo em Inglês | MEDLINE | ID: mdl-33558355

RESUMO

OBJECTIVE: To describe the pattern of hydroxychloroquine use and examine the association between hydroxychloroquine use and clinical outcomes arising from changes in the US Food and Drug Administration (FDA)'s recommendation during the coronavirus disease 2019 (COVID-19) pandemic. DESIGN: A retrospective cross-sectional analysis. SETTING AND PARTICIPANTS: We included hospitalised adult patients at Northwell Health hospitals with confirmed COVID-19 infections between 1 March 2020 and 11 May 2020. We categorised changes in the FDA's recommendation as pre-FDA approval (1 March 2020-27 March 2020), FDA approval (28 March 2020-23 April 2020), and FDA warning (24 April 2020-11 May 2020). The hydroxychloroquine-treated group received at least one dose within 48 hours of hospital admission. PRIMARY OUTCOME: A composite of intubation and inpatient death. RESULTS: The percentages of patients who were treated with hydroxychloroquine were 192/2202 (8.7%) pre-FDA approval, 2902/6741 (43.0%) FDA approval, and 176/1066 (16.5%) FDA warning period (p<0.001). Using propensity score matching, there was a higher rate of the composite outcome among patients treated with hydroxychloroquine (49/192, 25.5%) compared with no hydroxychloroquine (66/384, 17.2%) in the pre-FDA approval period (p=0.03) but not in the FDA approval period (25.5% vs 22.6%, p=0.08) or the FDA warning (21.0% vs 15.1%, p=0.11) periods. Coincidently, there was an increase in number of patients with COVID-19 and disease severity during the FDA approval period (24.1% during FDA approval vs 21.4% during pre-FDA approval period had the composite outcome). Hydroxychloroquine use was associated with increased odds of the composite outcome during the pre-FDA approval period (OR=1.65 (95% CI 1.09 to 2.51)) but not during the FDA approval (OR=1.17 (95% CI 0.99 to 1.39)) and FDA warning (OR=1.50 (95% CI 0.94 to 2.39)) periods. CONCLUSIONS: Hydroxychloroquine use was associated with adverse clinical outcomes only during the pre-FDA approval period but not during the FDA approval and warning periods, even after adjusting for concurrent changes in the percentage of patients with COVID-19 treated with hydroxychloroquine and the number (and disease severity) of hospitalised patients with COVID-19 infections.


Assuntos
Tratamento Farmacológico da COVID-19 , Hidroxicloroquina/administração & dosagem , United States Food and Drug Administration , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Feminino , Humanos , Hidroxicloroquina/efeitos adversos , Masculino , Medicare , Pessoa de Meia-Idade , New York , Pontuação de Propensão , Estudos Retrospectivos , Estados Unidos , Adulto Jovem
6.
Chest ; 159(3): 933-948, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33075378

RESUMO

BACKGROUND: Cytokine storm is a marker of coronavirus disease 2019 (COVID-19) illness severity and increased mortality. Immunomodulatory treatments have been repurposed to improve mortality outcomes. RESEARCH QUESTION: Do immunomodulatory therapies improve survival in patients with COVID-19 cytokine storm (CCS)? STUDY DESIGN AND METHODS: We conducted a retrospective analysis of electronic health records across the Northwell Health system. COVID-19 patients hospitalized between March 1, 2020, and April 24, 2020, were included. CCS was defined by inflammatory markers: ferritin, > 700 ng/mL; C-reactive protein (CRP), > 30 mg/dL; or lactate dehydrogenase (LDH), > 300 U/L. Patients were subdivided into six groups: no immunomodulatory treatment (standard of care) and five groups that received either corticosteroids, anti-IL-6 antibody (tocilizumab), or anti-IL-1 therapy (anakinra) alone or in combination with corticosteroids. The primary outcome was hospital mortality. RESULTS: Five thousand seven hundred seventy-six patients met the inclusion criteria. The most common comorbidities were hypertension (44%-59%), diabetes (32%-46%), and cardiovascular disease (5%-14%). Patients most frequently met criteria with high LDH (76.2%) alone or in combination, followed by ferritin (63.2%) and CRP (8.4%). More than 80% of patients showed an elevated D-dimer. Patients treated with corticosteroids and tocilizumab combination showed lower mortality compared with patients receiving standard-of-care (SoC) treatment (hazard ratio [HR], 0.44; 95% CI, 0.35-0.55; P < .0001) and with patients treated with corticosteroids alone (HR, 0.66; 95% CI, 0.53-0.83; P = .004) or in combination with anakinra (HR, 0.64; 95% CI, 0.50-0.81; P = .003). Corticosteroids when administered alone (HR, 0.66; 95% CI, 0.57-0.76; P < .0001) or in combination with tocilizumab (HR, 0.43; 95% CI, 0.35-0.55; P < .0001) or anakinra (HR, 0.68; 95% CI, 0.57-0.81; P < .0001) improved hospital survival compared with SoC treatment. INTERPRETATION: The combination of corticosteroids with tocilizumab showed superior survival outcome when compared with SoC treatment as well as treatment with corticosteroids alone or in combination with anakinra. Furthermore, corticosteroid use either alone or in combination with tocilizumab or anakinra was associated with reduced hospital mortality for patients with CCS compared with patients receiving SoC treatment.


Assuntos
Corticosteroides/administração & dosagem , Anticorpos Monoclonais Humanizados/administração & dosagem , COVID-19 , Síndrome da Liberação de Citocina , Imunomodulação , Proteína Antagonista do Receptor de Interleucina 1/administração & dosagem , COVID-19/imunologia , COVID-19/mortalidade , COVID-19/terapia , Síndrome da Liberação de Citocina/imunologia , Síndrome da Liberação de Citocina/terapia , Síndrome da Liberação de Citocina/virologia , Reposicionamento de Medicamentos , Quimioterapia Combinada/métodos , Registros Eletrônicos de Saúde/estatística & dados numéricos , Humanos , Imunossupressores/administração & dosagem , Conduta do Tratamento Medicamentoso/estatística & dados numéricos , Pessoa de Meia-Idade , Avaliação de Processos e Resultados em Cuidados de Saúde , Estudos Retrospectivos , SARS-CoV-2/imunologia , Índice de Gravidade de Doença , Análise de Sobrevida , Estados Unidos/epidemiologia
7.
BMC Med Inform Decis Mak ; 20(1): 324, 2020 12 07.
Artigo em Inglês | MEDLINE | ID: mdl-33287815

RESUMO

BACKGROUND: Home telemonitoring is a promising approach to optimizing outcomes for patients with Type 2 Diabetes; however, this care strategy has not been adapted for use with understudied and underserved Hispanic/Latinos (H/L) patients with Type 2 Diabetes. METHODS: A formative, Community-Based Participatory Research approach was used to adapt a home telemonitoring intervention to facilitate acceptability and feasibility for vulnerable H/L patients. Utilizing the ADAPT-ITT framework, key stakeholders were engaged over an 8-month iterative process using a combination of strategies, including focus groups and structured interviews. Nine Community Advisory Board, Patient Advisory, and Provider Panel Committee focus group discussions were conducted, in English and Spanish, to garner stakeholder input before intervention implementation. Focus groups and structured interviews were also conducted with 12 patients enrolled in a 1-month pilot study, to obtain feedback from patients in the home to further adapt the intervention. Focus groups and structured interviews were approximately 2 hours and 30 min, respectively. All focus groups and structured interviews were audio-recorded and professionally transcribed. Structural coding was used to mark responses to topical questions in the moderator and interview guides. RESULTS: Two major themes emerged from qualitative analyses of Community Advisory Board/subcommittee focus group data. The first major theme involved intervention components to maximize acceptance/usability. Subthemes included tablet screens (e.g., privacy/identity concerns; enlarging font sizes; lighter tablet to facilitate portability); cultural incongruence (e.g., language translation/literacy, foods, actors "who look like me"); nursing staff (e.g., ensuring accessibility; appointment flexibility); and, educational videos (e.g., the importance of information repetition). A second major theme involved suggested changes to the randomized control trial study structure to maximize participation, including a major restructuring of the consenting process and changes designed to optimize recruitment strategies. Themes from pilot participant focus group/structured interviews were similar to those of the Community Advisory Board such as the need to address and simplify a burdensome consenting process, the importance of assuring privacy, and an accessible, culturally congruent nurse. CONCLUSIONS: These findings identify important adaptation recommendations from the stakeholder and potential user perspective that should be considered when implementing home telemonitoring for underserved patients with Type 2 Diabetes. TRIAL REGISTRATION: NCT03960424; ClinicalTrials.gov (US National Institutes of Health). Registered 23 May 2019. Registered prior to data collection. https://www.clinicaltrials.gov/ct2/show/NCT03960424?term=NCT03960424&draw=2&rank=1.


Assuntos
Assistência à Saúde Culturalmente Competente/organização & administração , Diabetes Mellitus Tipo 2 , Promoção da Saúde/métodos , Hispânico ou Latino/psicologia , Monitorização Ambulatorial/métodos , Aceitação pelo Paciente de Cuidados de Saúde , Telemedicina/métodos , Assistência à Saúde Culturalmente Competente/métodos , Diabetes Mellitus Tipo 2/terapia , Estudos de Viabilidade , Grupos Focais , Disparidades em Assistência à Saúde , Humanos , Entrevistas como Assunto , Projetos Piloto , Pesquisa Qualitativa , Telemedicina/normas , Populações Vulneráveis
8.
Telemed J E Health ; 25(6): 447-454, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30036166

RESUMO

Background: Home telemonitoring (HTM) is a promising approach to improve quality of life (QoL) and decrease hospital utilization. Methods: This randomized-controlled study followed 89 community-dwelling Medicare outpatients with heart failure (HF) after discharge from home care for 6 months. Patients were randomized to HTM or comprehensive outpatient management (COM). HTM received weekly (video) televisits with daily vital sign monitoring. COM was contacted weekly by telephone. Outcomes included emergency department (ED) and inpatient utilization and QoL. Results : Average age at enrollment was 81.4 for HTM and 84.9 for COM. Thirty-eight percent of HTM had ≥1 ED visit versus 60% of COM (p = 0.04), while 48% of HTM had ≥1 hospitalization versus 55% of COM (p = 0.47). Length of stay (LOS) (days) was 4.0 for HTM versus 7.4 for COM (p = 0.39). Costs were $38,990 for HTM versus $50,943 for COM (p = 0.91). QoL improved by -9.66 for HTM and -3.56 for COM (p = 0.02). Although HF-related utilization did not differ between groups, HTM patients who were highly adherent obtained better all-cause outcomes than those with low adherence. Conclusions: Significantly improved all-cause ED utilization, LOS, and QoL were found for HTM; other differences were not significant. More research is needed to determine how to best utilize this technology to improve patient outcomes.


Assuntos
Insuficiência Cardíaca/epidemiologia , Vida Independente , Monitorização Ambulatorial/métodos , Qualidade de Vida , Telemedicina/métodos , Idoso , Idoso de 80 Anos ou mais , Análise Custo-Benefício , Serviço Hospitalar de Emergência/estatística & dados numéricos , Feminino , Hospitalização , Humanos , Masculino , Prontuários Médicos , Medicare , Monitorização Ambulatorial/economia , Cooperação do Paciente , Autorrelato , Fatores Socioeconômicos , Estados Unidos/epidemiologia
9.
Thromb Haemost ; 116(3): 530-6, 2016 08 30.
Artigo em Inglês | MEDLINE | ID: mdl-27307054

RESUMO

The IMPROVE Bleed Risk Assessment Model (RAM) remains the only bleed RAM in hospitalised medical patients using 11 clinical and laboratory factors. The aim of our study was to externally validate the IMPROVE Bleed RAM. A retrospective chart review was conducted between October 1, 2012 and July 31, 2014. We applied the point scoring system to compute risk scores for each patient in the validation sample. We then dichotomised the patients into those with a score <7 (low risk) vs ≥ 7 (high risk), as outlined in the original study, and compared the rates of any bleed, non-major bleed, and major bleed. Among the 12,082 subjects, there was an overall 2.6 % rate of any bleed within 14 days of admission. There was a 2.12 % rate of any bleed in those patients with a score of < 7 and a 4.68 % rate in those with a score ≥ 7 [Odds Ratio (OR) 2.3 (95 % CI=1.8-2.9), p<0.0001]. MB rates were 1.5 % in the patients with a score of < 7 and 3.2 % in the patients with a score of ≥ 7, [OR 2.2 (95 % CI=1.6-2.9), p<0.0001]. The ROC curve was 0.63 for the validation sample. This study represents the largest externally validated Bleed RAM in a hospitalised medically ill patient population. A cut-off point score of 7 or above was able to identify a high-risk patient group for MB and any bleed. The IMPROVE Bleed RAM has the potential to allow for more tailored approaches to thromboprophylaxis in medically ill hospitalised patients.


Assuntos
Hemorragia/etiologia , Terapia Trombolítica/efeitos adversos , Tromboembolia Venosa/prevenção & controle , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Hospitalização , Humanos , Masculino , Pessoa de Meia-Idade , Modelos Estatísticos , Estudos Retrospectivos , Medição de Risco , Fatores de Risco
10.
Telemed J E Health ; 18(2): 101-8, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22283360

RESUMO

OBJECTIVE: To study the impact of remote patient monitoring (RPM) upon the most frequent diagnosis in hospitalized patients over 65 years of age-heart failure (HF). We examined the effect of RPM on hospital utilization and Medicare costs of HF patients receiving home care. MATERIALS AND METHODS: Two studies were simultaneously conducted: A randomized and a matched-cohort study. In the randomized study, 168 subjects were randomly assigned (after hospitalization) to home care utilizing RPM (live nursing visits and video-based nursing visits) or to home care receiving live nursing visits only. In the matched-cohort study, 160 subjects receiving home care with RPM (live nursing visits and video-based nursing visits) were matched with home care subjects receiving live nursing visits only. RESULTS: Regardless of whether outcomes were being analyzed for all subjects (intention to treat) or for hospitalized subjects only, hospitalization rates, time to first admission, length of stay, and costs to Medicare did not differ significantly between groups in either study at 30 or 90 days after enrollment. A notable trend, however, emerged across studies: Although time to hospitalization was shorter in the RPM groups than the control groups, RPM groups had lower hospitalization costs. CONCLUSIONS: RPM, when utilized in conjunction with a robust management protocol, was not found to significantly differ from live nursing visits in the management of HF in home care. Shorter hospitalization times and lower associated costs may be due to earlier identification of exacerbation. These trends indicate the need for further study.


Assuntos
Cardiologia/instrumentação , Insuficiência Cardíaca , Serviços de Assistência Domiciliar/organização & administração , Medicare/estatística & dados numéricos , Telemedicina/organização & administração , Idoso , Idoso de 80 Anos ou mais , Cardiologia/economia , Continuidade da Assistência ao Paciente , Feminino , Serviços de Assistência Domiciliar/economia , Humanos , Masculino , Medicare/economia , Pessoa de Meia-Idade , Estatísticas não Paramétricas , Telemedicina/economia , Estados Unidos
11.
Palliat Support Care ; 9(4): 401-6, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22104416

RESUMO

OBJECTIVE: The purpose of this study was to assess the impact of a palliative medicine consultation on medical intensive care unit (MICU) and hospital length of stay, Do Not Resuscitate (DNR) designation, and location of death for MICU patients who died during hospitalization. METHOD: A comparison of two retrospective cohorts in a 17-bed MICU in a tertiary care university-affiliated hospital was conducted. Patients admitted to the MICU between January 1, 2003 and June 30, 2004 (N = 515) were compared to MICU patients who had had a palliative medicine consultation between January 1, 2005 and June 1, 2009 (N = 693). To control for disease severity, only patients in both cohorts who died during their hospitalization were considered for this study. RESULTS: Palliative medicine consultation reduced time until death during the entire hospitalization (log-rank test, p < 0.01). Time from MICU admission until death was also reduced (log-rank test, p < 0.01), further demonstrating the impact of the palliative care consultation on the duration of dying for hospitalized patients. The intervention group contained a significantly higher percentage of patients with a DNR designation at death than did the control group (86% vs. 68%, χ2 test, p < 0.0001). SIGNIFICANCE OF RESULTS: Palliative medicine consultation is associated with an increased rate of DNR designation and reduced time until death. Patients in the intervention group were also more likely to die outside the MICU as compared to controls in the usual care group.


Assuntos
Mortalidade Hospitalar/tendências , Unidades de Terapia Intensiva/estatística & dados numéricos , Tempo de Internação/estatística & dados numéricos , Cuidados Paliativos , Ordens quanto à Conduta (Ética Médica) , APACHE , Idoso , Custos e Análise de Custo , Feminino , Humanos , Tempo de Internação/tendências , Masculino , Futilidade Médica , Encaminhamento e Consulta , Estudos Retrospectivos
12.
Acad Emerg Med ; 16 Suppl 2: S51-7, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20053212

RESUMO

OBJECTIVES: Developed by the Council of Emergency Medicine Residency Directors (CORD), the standardized direct observation assessment tool (SDOT) is an evaluation instrument used to assess residents' clinical skills in the emergency department (ED). In a previous study examining the inter-rater agreement of the tool, faculty scored simulated resident-patient encounters. The objective of the present study was to evaluate the inter-rater agreement of the SDOT in real-time evaluations of residents in the ED. METHODS: This was a multi-center, prospective, observational study in which faculty raters were paired to simultaneously observe and independently evaluate a resident's clinical performance using the SDOT. Data collected from eight emergency medicine (EM) residency programs produced 99 unique resident-patient encounters and reported on 26 individual behaviors related to specific core competencies, global evaluation scores for each core competency, and an overall clinical competency score. Inter-rater agreement was assessed using percentage agreement analyses with three constructs: exact agreement, liberal agreement, and binary (pass/fail) agreement. RESULTS: Inter-rater agreement between faculty raters varied according to category of measure used. Exact agreement ranged from poor to good, depending on the measure: the overall competency score (good), the competency score for each of the six core competencies (poor to good), and the individual item scores (fair to very good). Liberal agreement and binary agreement were excellent for the overall competency score and the competency score for each of the six core competencies and very good to excellent for the individual item scores. CONCLUSIONS: The SDOT demonstrated excellent inter-rater agreement when analyzed with liberal agreement and when dichotomized as a pass/fail measure and fair to good agreement for most measures with exact agreement. The SDOT can be useful and reliable when evaluating residents' clinical skills in the ED, particularly as it relates to marginal performance.


Assuntos
Competência Clínica , Internato e Residência , Humanos , Estudos Prospectivos , Reprodutibilidade dos Testes
13.
J Pediatr Endocrinol Metab ; 21(4): 359-67, 2008 04.
Artigo em Inglês | MEDLINE | ID: mdl-18556967

RESUMO

BACKGROUND: Low resting energy expenditure (REE) and respiratory quotient (RQ) have been shown in adults to predispose to obesity and diabetes mellitus. AIM: To correlate REE and RQ in 73 obese children and young adults (body mass index [BMI] 37 +/- 10 kg/m2) with measures of insulin secretion and resistance (IR) indices, percent carbohydrate and fat oxidation, and prolactin and leptin levels. DESIGN: During a 3-day admission, REE and RQ were determined by indirect calorimetry. Blood chemistries and oral glucose tolerance test (OGTT) were obtained, and intravenous glucose tolerance test (IVGTT) modified by tolbutamide was conducted after an overnight fast, permitting calculation of acute insulin response (AIR), insulin resistance (SiIVGTT), and disposition index (DI). RESULTS: Patients fell into two groups according to their SiIVGTT: those with normal insulin sensitivity (NIS) and those with insulin resistance (IR). IR patients were subdivided on the basis of DI (cut-off value 0.13 min(-1)) into compensated (CIR) or decompensated (DIR) groups. CIR patients had higher RQ, REE corrected by BMI, AIR, and carbohydrate oxidation and lower fat oxidation than NIS and DIR patients. REE correlated positively with BMI, leptin, and AIR, and negatively with SiIVGTT. CONCLUSIONS: Findings in the CIR and DIR groups support the correlation of REE with metabolic changes consistent with an increased risk of diabetes mellitus.


Assuntos
Metabolismo Energético/fisiologia , Resistência à Insulina/fisiologia , Insulina/metabolismo , Obesidade/metabolismo , Adolescente , Glicemia/metabolismo , Índice de Massa Corporal , Criança , Feminino , Humanos , Secreção de Insulina , Leptina/sangue , Masculino , Prolactina/sangue
14.
Br J Haematol ; 138(2): 245-8, 2007 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-17542983

RESUMO

A method for objective quantification of bleeding symptoms in immune thrombocytopenic purpura (ITP) has not been established. The ITP Bleeding Scale (IBLS) is a novel bleeding assessment system comprising 11 site-specific grades. Implementation of the IBLS on 100 patient visits revealed that although platelet count and large platelet count correlated well with bleeding symptoms overall, this relationship disappeared in marked thrombocytopenia. The IBLS is a useful clinical tool for monitoring bleeding and may be used to aid the development of laboratory parameters that correlate with underlying bleeding propensity in thrombocytopenia.


Assuntos
Hemorragia/fisiopatologia , Púrpura Trombocitopênica Idiopática/fisiopatologia , Adolescente , Adulto , Idoso , Plaquetas/fisiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Contagem de Plaquetas , Estudos Prospectivos
15.
Respiration ; 71(5): 450-7, 2004.
Artigo em Inglês | MEDLINE | ID: mdl-15467321

RESUMO

BACKGROUND: While the optimal role of spiral CT angiography (CTA) in the diagnosis of pulmonary embolism (PE) remains controversial, this technology is already being widely utilized in the community setting. OBJECTIVES: To assess the impact CTA has had on angiography utilization rates and the overall diagnostic rate of PE. METHODS: All patients evaluated for PE during a 4-year period were studied. PE was defined as either a high-probability V/Q scan, a positive conventional angiogram, or a CTA with emboli in the segmental or larger pulmonary vessels. Diagnostic rates of PE per 1,000 hospital admissions were determined and analyzed for time periods before and after the introduction of CTA. CT reports were compared with their concurrent chest radiograph (CXR) reports and additional findings that were not apparent on CXR were abstracted. RESULTS: The diagnostic rate of PE per 1,000 hospital admissions was 1.8 prior to the introduction of CTA and increased to 2.8 per 1,000 admissions after the introduction of CTA (p < 0.0001). Total costs for diagnostic testing per PE diagnosis made went from US 2,518 dollars to US 2,572 dollars. While the number of PE diagnosed by V/Q scan remained constant, the number of PE diagnosed by conventional angiography decreased while the number diagnosed by CTA increased. In patients with intermediate probability V/Q scan results, the percentage of patients receiving subsequent angiography (conventional or CTA) increased from 17 to 26% (p = 0.043). When conventional angiography was performed, CT imaging of the chest still had to be ordered for other reasons 38% of the time. Additional information was obtained in 78% of cases when CTA was performed. CONCLUSIONS: Increased utilization of CTA was associated with an increase in angiography utilization rates and diagnostic rates of PE, was cost effective, and often provided additional, useful, and unanticipated diagnostic information.


Assuntos
Angiografia , Hospitais Comunitários , Embolia Pulmonar/diagnóstico por imagem , Tomografia Computadorizada Espiral , Angiografia/economia , Angiografia/normas , Angiografia/estatística & dados numéricos , Análise Custo-Benefício , Custos de Cuidados de Saúde , Humanos , Embolia Pulmonar/fisiopatologia , Tomografia Computadorizada Espiral/economia , Tomografia Computadorizada Espiral/normas , Tomografia Computadorizada Espiral/estatística & dados numéricos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA