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1.
JAMA Netw Open ; 7(4): e246565, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38619840

RESUMO

Importance: Timely tests are warranted to assess the association between generative artificial intelligence (GenAI) use and physicians' work efforts. Objective: To investigate the association between GenAI-drafted replies for patient messages and physician time spent on answering messages and the length of replies. Design, Setting, and Participants: Randomized waiting list quality improvement (QI) study from June to August 2023 in an academic health system. Primary care physicians were randomized to an immediate activation group and a delayed activation group. Data were analyzed from August to November 2023. Exposure: Access to GenAI-drafted replies for patient messages. Main Outcomes and Measures: Time spent (1) reading messages, (2) replying to messages, (3) length of replies, and (4) physician likelihood to recommend GenAI drafts. The a priori hypothesis was that GenAI drafts would be associated with less physician time spent reading and replying to messages. A mixed-effects model was used. Results: Fifty-two physicians participated in this QI study, with 25 randomized to the immediate activation group and 27 randomized to the delayed activation group. A contemporary control group included 70 physicians. There were 18 female participants (72.0%) in the immediate group and 17 female participants (63.0%) in the delayed group; the median age range was 35-44 years in the immediate group and 45-54 years in the delayed group. The median (IQR) time spent reading messages in the immediate group was 26 (11-69) seconds at baseline, 31 (15-70) seconds 3 weeks after entry to the intervention, and 31 (14-70) seconds 6 weeks after entry. The delayed group's median (IQR) read time was 25 (10-67) seconds at baseline, 29 (11-77) seconds during the 3-week waiting period, and 32 (15-72) seconds 3 weeks after entry to the intervention. The contemporary control group's median (IQR) read times were 21 (9-54), 22 (9-63), and 23 (9-60) seconds in corresponding periods. The estimated association of GenAI was a 21.8% increase in read time (95% CI, 5.2% to 41.0%; P = .008), a -5.9% change in reply time (95% CI, -16.6% to 6.2%; P = .33), and a 17.9% increase in reply length (95% CI, 10.1% to 26.2%; P < .001). Participants recognized GenAI's value and suggested areas for improvement. Conclusions and Relevance: In this QI study, GenAI-drafted replies were associated with significantly increased read time, no change in reply time, significantly increased reply length, and some perceived benefits. Rigorous empirical tests are necessary to further examine GenAI's performance. Future studies should examine patient experience and compare multiple GenAIs, including those with medical training.


Assuntos
Inteligência Artificial , Médicos , Adulto , Feminino , Humanos , Comunicação , Eletrônica , Sistemas Computadorizados de Registros Médicos , Masculino , Pessoa de Meia-Idade
2.
Gerontol Geriatr Med ; 9: 23337214231186460, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37435005

RESUMO

Background: The median age of Americans is rising and fall risk increases with age. While the causes of falls are multifactorial, falls risk can be reduced. Only a small percentage of older-adults report being asked about fall risk or falls. The CDC has initiated a Stopping Elderly Accidents, Deaths and Injuries (STEADI) toolkit, but penetration into practice has been slow. To address this, we implemented a Falls Prevention Shared Medical Appointment (SMA) at an academic internal medicine clinic. Methods: Patients were referred to the SMA and scheduled per their preference virtually or in-person. Patients attended a nurse visit for appropriate fallrisk related screening, followed by the SMA with two physicians for review of medical history, fall screening results and implementation of fall reduction strategies. Follow-up survey of the patients assessed program effectiveness. Results: Fifty-two patients were seen/assessed between November 2021 and February 2023 with SMAs ranging from 3 to 5 patients with an average age of 77 (=/- 6.7). Questionnaire self-reported risk factors, self-reported strength, and polypharmacy were associated with objective markers of increased fall risk. Survey results indicate acceptability of this model. Conclusion: Falls prevention SMAs can be effective. More work is needed to further delineate and refine cohort selection.

3.
J Hepatol ; 78(3): 471-478, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36410554

RESUMO

BACKGROUND & AIMS: There are limited prospective data on patients with type 2 diabetes mellitus (T2DM) specifically enrolled and systematically assessed for advanced fibrosis or cirrhosis due to non-alcoholic fatty liver disease (NAFLD). Therefore, we aimed to evaluate the prevalence of advanced fibrosis and cirrhosis in a prospectively recruited cohort of adults with T2DM. METHODS: This prospective study enrolled adults aged ≥50 years with T2DM, recruited from primary care or endocrinology clinics. Participants underwent a standardized clinical research visit with MRI-proton density fat fraction (MRI-PDFF), magnetic resonance elastography (MRE), vibration-controlled transient elastography (VCTE) and controlled-attenuation parameter. NAFLD was defined as MRI-PDFF ≥5% after exclusion of other liver diseases. Advanced fibrosis and cirrhosis were defined by established liver stiffness cut-off points on MRE or VCTE if MRE was not available. RESULTS: Of 524 patients screened, 501 adults (63% female) with T2DM met eligibility. The mean age and BMI were 64.6 (±8.1) years and 31.4 (±5.9) kg/m2, respectively. The prevalence of NAFLD, advanced fibrosis and cirrhosis was 65%, 14% and 6%, respectively. In multivariable adjusted models, adjusted for age and sex, obesity and insulin use were associated with increased odds of advanced fibrosis (odds ratio 2.50; 95% CI 1.38-4.54; p = 0.003 and odds ratio 2.71; 95% CI 1.33-5.50; p = 0.006, respectively). Among 29 patients with cirrhosis, two were found to have hepatocellular carcinoma and one patient had gallbladder adenocarcinoma. CONCLUSION: Utilizing a uniquely well-phenotyped prospective cohort of patients aged ≥50 years with T2DM, we found that the prevalence of advanced fibrosis was 14% and that of cirrhosis was 6%. These data underscore the high risk of advanced fibrosis/cirrhosis in adults aged ≥50 years with T2DM. IMPACT AND IMPLICATIONS: Non-alcoholic fatty liver disease (NAFLD) is common in patients with type 2 diabetes (T2DM), however, there are limited prospective data characterizing the prevalence of advanced fibrosis and cirrhosis using the most accurate non-invasive biomarkers of liver fat and fibrosis. We show that 14% of older adults with T2DM have advanced fibrosis and 6% have cirrhosis, which places them at risk for liver failure and liver cancer. Accurate prevalence rates and comparative analysis regarding the diagnostic accuracy of non-invasive tests in this population will guide the optimal screening strategy and future cost-effectiveness analyses. These results will inform future Hepatology and Endocrinology practice guidelines regarding NAFLD screening programs in older adults with T2DM.


Assuntos
Carcinoma Hepatocelular , Diabetes Mellitus Tipo 2 , Técnicas de Imagem por Elasticidade , Neoplasias Hepáticas , Hepatopatia Gordurosa não Alcoólica , Humanos , Feminino , Idoso , Masculino , Hepatopatia Gordurosa não Alcoólica/complicações , Estudos Prospectivos , Diabetes Mellitus Tipo 2/epidemiologia , Carcinoma Hepatocelular/patologia , Prevalência , Neoplasias Hepáticas/patologia , Cirrose Hepática/diagnóstico , Fígado/patologia , Técnicas de Imagem por Elasticidade/métodos , Fibrose
4.
J Hepatol ; 65(2): 369-76, 2016 08.
Artigo em Inglês | MEDLINE | ID: mdl-27151177

RESUMO

BACKGROUND & AIMS: Uncontrolled studies show sitagliptin, an oral DPP-4 inhibitor, may improve alanine aminotransferase and liver histology in non-alcoholic fatty liver disease (NAFLD) patients. We aimed to compare sitagliptin vs. the efficacy of a placebo in reducing liver fat measured by MRI-derived proton density-fat fraction (MRI-PDFF). METHODS: This randomized, double-blind, allocation-concealed, placebo-controlled trial included 50 NAFLD patients with prediabetes or early diabetes randomized to sitagliptin orally 100mg/day or placebo for 24weeks. Primary outcome was liver fat change measured by MRI-PDFF in colocalized regions of interest within each of nine liver segments. Additional advanced assessments included MR spectroscopy (MRS) for internal validation of MRI-PDFF's accuracy, and magnetic resonance elastography (MRE) and FIBROSpect® II to assess liver fibrosis. RESULTS: Sitagliptin was not significantly better than placebo in reducing liver fat measured by MRI-PDFF (mean difference between sitagliptin and placebo arms: -1.3%, p=0.4). Compared to baseline, there were no significant differences in end-of-treatment MRI-PDFF for sitagliptin (18.1% to 16.9%, p=0.27) or placebo (16.6% to 14.0%, p=0.07). The groups had no significant differences for changes in alanine aminotransferase, aspartate aminotransferase, low-density lipoprotein, homeostatic model assessment insulin resistance, and MRE-derived liver stiffness. In both groups at baseline and post-treatment, MRI-PDFF and MRS showed robust correlation coefficients ranging from r(2)=0.96 to r(2)=0.99 (p<0.0001), demonstrating the strong internal validity of the findings. FIBROSpect® II showed no changes in the sitagliptin group but was significantly increased in the placebo group (p=0.03). CONCLUSIONS: Sitagliptin was safe but not better than placebo in reducing liver fat in prediabetic or diabetic patients with NAFLD. LAY SUMMARY: In a randomized, double-blind, placebo-controlled study, the anti-diabetic drug sitagliptin was no more effective than placebo for improving liver fat and liver fibrosis in patients with non-alcoholic fatty liver disease. This study demonstrates that non-invasive magnetic resonance imaging techniques, including magnetic resonance imaging-proton density-fat fraction and magnetic resonance elastography, can be used to assess treatment response in non-alcoholic fatty liver disease clinical trials.


Assuntos
Hepatopatia Gordurosa não Alcoólica , Método Duplo-Cego , Técnicas de Imagem por Elasticidade , Humanos , Fígado , Imageamento por Ressonância Magnética , Fosfato de Sitagliptina
5.
J Steroid Biochem Mol Biol ; 148: 239-44, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25533386

RESUMO

PURPOSE: To determine whether a higher serum 25-hydroxyvitamin D [25(OH)D] concentration at diagnosis is associated with longer survival of colorectal cancer patients. METHODS: A meta-analysis was performed of studies of the relationship between 25(OH)D and mortality of patients with colorectal cancer. A random-effects model was used to calculate a pooled hazards ratio. Homogeneity was evaluated through a DerSimonian-Laird test. RESULTS: Higher serum concentrations of 25(OH)D were associated with lower mortality in patients with colorectal cancer. Patients in the highest quintile of 25(OH)D had 37% lower mortality from colorectal cancer compared to those in the lowest quintile of 25(OH)D (pooled odds ratio=0.63, p<0.0001). Dose-response curves showed lower hazard ratios for mortality with higher serum 25(OH)D through at least 40ng/ml. There were no exceptions. CONCLUSIONS: Higher serum 25(OH)D was associated with lower mortality of patients with colorectal cancer. These results suggest that colorectal cancer patients with deficient levels of serum 25(OH)D should have their levels restored to a normal range (30-80ng/ml). This could be done with regular testing of serum 25(OH)D to be confident that an adequate serum level is being maintained. Additional studies would be worthwhile to evaluate confounding or the possibility of reverse causation.


Assuntos
Neoplasias Colorretais/mortalidade , Vitamina D/uso terapêutico , Vitaminas/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Humanos , Prognóstico , Taxa de Sobrevida
6.
Am J Public Health ; 104(8): e43-50, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24922127

RESUMO

We examined the relationship between serum 25-hydroxyvitamin D (25[OH]D) and all-cause mortality. We searched biomedical databases for articles that assessed 2 or more categories of 25(OH)D from January 1, 1966, to January 15, 2013. We identified 32 studies and pooled the data. The hazard ratio for all-cause mortality comparing the lowest (0-9 nanograms per milliliter [ng/mL]) to the highest (> 30 ng/mL) category of 25(OH)D was 1.9 (95% confidence interval = 1.6, 2.2; P < .001). Serum 25(OH)D concentrations less than or equal to 30 ng/mL were associated with higher all-cause mortality than concentrations greater than 30 ng/mL (P < .01). Our findings agree with a National Academy of Sciences report, except the cutoff point for all-cause mortality reduction in this analysis was greater than 30 ng/mL rather than greater than 20 ng/mL.


Assuntos
Mortalidade , Vitamina D/análogos & derivados , Humanos , Modelos de Riscos Proporcionais , Vitamina D/sangue , Deficiência de Vitamina D/sangue , Deficiência de Vitamina D/mortalidade
7.
Jt Comm J Qual Patient Saf ; 40(5): 228-34, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24919254

RESUMO

BACKGROUND: Nearly 2 million osteoporosis-related fractures occur yearly in the United States, with more than 400,000 requiring hospital admissions. Fewer than 30% receive proper evaluation and care for osteoporosis, representing a large opportunity to enhance secondary prevention of fractures. Methods to improve identification and triage of hospitalized fragility-fracture patients are desirable. METHODS: A multidisciplinary team was created, and definitions were established for an evidence-based best-practice protocol to assess, treat, and document an osteoporosis diagnosis and triage patients with hip-fragility fractures on the basis of the best-practice recommendations from The Joint Commission and the National Osteoporosis Foundation. The team initiated a preauthorized osteoporosis consultation from the endocrinology service for hip-fracture patients, "triggered" via a brief query in admission orders or by the orthopedic service nurse practitioner. Osteoporosis consultations used a consultation template reflecting the protocol. RESULTS: Data were analyzed for 71 baseline patients and 61 intervention patients. The groups possessed similar age, gender, race, and body mass index characteristics. The baseline (on-demand consultation) group suffered from poor performance, with only 3%-21% of patients receiving the desired evaluation, documentation, treatment, or outpatient follow-up. Intervention (triggered-consultation) patients improved markedly postintervention, With performance increasing by 52%-76% on all parameters except outpatient follow-up, which changed insignificantly (6%-15%). CONCLUSION: Although triggered consultation was effective, multimodal layered interventions may achieve even better results and address several identified barriers.


Assuntos
Endocrinologia/organização & administração , Fraturas do Quadril , Osteoporose/terapia , Melhoria de Qualidade , Encaminhamento e Consulta , Idoso , Medicina Baseada em Evidências , Feminino , Humanos , Masculino , Osteoporose/diagnóstico , Equipe de Assistência ao Paciente , Guias de Prática Clínica como Assunto
9.
Anticancer Res ; 34(3): 1163-6, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24596354

RESUMO

BACKGROUND/AIM: To determine whether higher serum 25-hydroxyvitamin D [25(OH)D] at diagnosis is associated with longer survival of patients with breast cancer. MATERIALS AND METHODS: A meta-analysis was performed of five studies of the relationship between 25(OH)D and mortality from breast cancer. A pooled hazard ratio was calculated using a random-effects model. The Der Simonian-Laird test was used to assess homogeneity. RESULTS: Higher serum concentrations of 25(OH)D were associated with lower case-fatality rates after diagnosis of breast cancer. Specifically, patients in the highest quintile of 25(OH)D had approximately half the death rate from breast cancer as those in the lowest. CONCLUSION: High serum 25(OH)D was associated with lower mortality from breast cancer. Serum 25(OH)D in all patients with breast cancer should be restored to the normal range (30-80 ng/ml), with appropriate monitoring. Clinical or field studies should be initiated to confirm that this association was not due to reverse causation.


Assuntos
Neoplasias da Mama/patologia , Deficiência de Vitamina D/prevenção & controle , Vitamina D/análogos & derivados , Neoplasias da Mama/metabolismo , Feminino , Humanos , Prognóstico , Taxa de Sobrevida , Vitamina D/administração & dosagem , Deficiência de Vitamina D/diagnóstico
10.
J Natl Med Assoc ; 100(3): 285-7, 2008 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-18390021

RESUMO

Peroxisome proliferator-activated receptor (PPAR) agonists are sometimes used in patients with radioiodine-resistant differentiated thyroid cancers in order to effect further differentiation of the tumor and increase the chance of therapeutic success with subsequent doses of radioiodine. PPAR agonists are reportedly protective of the pancreas and have been proposed as agents that might be useful in the prevention of pancreatitis. In this report, we describe a patient treated with the PPAR agonist rosiglitazone for thyroid cancer who showed imaging abnormalities on PET scan and biochemical evidence of acute pancreatitis. Despite evidence of acute pancreatitis, the etiology of which is unclear, the patient remained asymptomatic. It is speculated that the lack of symptoms in this patient was due to the suppression by rosiglitazone of proinflammatory cytokines.


Assuntos
PPAR gama/uso terapêutico , Pancreatite/diagnóstico por imagem , Receptores Ativados por Proliferador de Peroxissomo/agonistas , Tiazolidinedionas/uso terapêutico , Neoplasias da Glândula Tireoide/radioterapia , Feminino , Humanos , Pessoa de Meia-Idade , Pancreatite/tratamento farmacológico , Cintilografia , Rosiglitazona , Falha de Tratamento
11.
Am J Med ; 121(2): 98-104, 2008 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-18261494

RESUMO

The incidence of carbohydrate intolerance and overt diabetes is increased in patients with schizophrenia treated with the newer atypical antipsychotic agents. The precise mechanism for these abnormalities remains obscure. This review examines the potential interaction between atypical antipsychotic medications and several hormones known to influence appetite regulation and carbohydrate metabolism.


Assuntos
Antipsicóticos/efeitos adversos , Transtornos do Metabolismo de Glucose/induzido quimicamente , Esquizofrenia/tratamento farmacológico , Animais , Moduladores de Receptores de Canabinoides/metabolismo , Diabetes Mellitus/induzido quimicamente , Diabetes Mellitus/metabolismo , Grelina/efeitos dos fármacos , Grelina/metabolismo , Glucagon/efeitos dos fármacos , Glucagon/metabolismo , Transtornos do Metabolismo de Glucose/metabolismo , Humanos , Insulina/sangue , Resistência à Insulina , Leptina/metabolismo
12.
Diabetes Obes Metab ; 10(8): 617-25, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-17645549

RESUMO

The thiazolidinediones (TZDs) or glitazones are pharmaceutical agents that have profound effects on energy expenditure and conservation. They also exert significant anti-inflammatory effects and influence cell proliferation and cell death. The drugs are primarily used in clinical practice in the treatment of patients with type 2 diabetes mellitus, a disorder of insulin resistance that occurs when the pancreatic beta-cells are unable to produce adequate amounts of insulin to maintain euglycaemia. Loss of pancreatic beta-cell function in type 2 diabetes is progressive and often precedes overt diabetes by 10 years or more, as was shown by the United Kingdom Prospective Diabetes Study. Any therapeutic or preventive approach that would limit or reverse loss of beta-cell function in diabetes would have profound effects on the morbidity associated with this widespread disease. Evidence suggesting a potential role of TZDs in preserving beta-cell function in type 2 diabetes as well as the ability of these agents to exert anti-inflammatory and proapoptotic anticancer effects, and their ability to promote cellular proliferation in various organs is reviewed.


Assuntos
Adiposidade/efeitos dos fármacos , Apoptose/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Diabetes Mellitus Tipo 2/tratamento farmacológico , Células Secretoras de Insulina/metabolismo , PPAR gama/antagonistas & inibidores , Tiazolidinedionas/farmacologia , Animais , Apoptose/fisiologia , Bovinos , Diabetes Mellitus Tipo 2/fisiopatologia , Feminino , Humanos , Resistência à Insulina/fisiologia , Células Secretoras de Insulina/fisiologia , Masculino , Camundongos , Tiazolidinedionas/uso terapêutico , Resultado do Tratamento
13.
Pharmacogenet Genomics ; 16(1): 25-36, 2006 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-16344719

RESUMO

OBJECTIVES: 5-Hydroxytryptamine (serotonin)-1B receptors (HTR1B) may play an important role in psychiatric disorders and drug and alcohol dependence. In this study we report on genotype, molecular haplotype and statistically estimated haplotype analyses of previously identified polymorphisms in positions -261T>G, -161A>T, 129C>T, 861G>C and 1180A>G of the HTR1B gene in ethnically diverse populations (African-Americans, Caucasians, Hispanics and Asians) including 235 former heroin addicts and 161 control subjects from New York City. The objectives were to test for an association of molecular and statistically estimated haplotypes and genotypes in HTR1B gene with heroin addiction and to compare results provided by molecular and statistically estimated haplotyping methods. METHODS: Genotype analysis was performed using a standard TaqMan protocol. Molecular haplotype analysis of the subset of polymorphisms consisting of -261T>G, -161A>T and 129C>T was performed using a protocol specially designed by our group, using fluorescent PCR. This is based on use of allele-specific primers complementary to flanking polymorphisms and a fluorescently labeled sequence-specific TaqMan probe set complementary to an internal polymorphism of the haplotype region. Every individual's statistically inferred haplotype pair agreed with the individual's haplotype pair determined by molecular haplotyping. RESULTS AND CONCLUSION: A point-wise significant association of haplotype pairs containing allele G at position 1180 with protective effect from heroin addiction in Caucasians was found. A point-wise nominally significant association of allele 1180G with a protective effect from heroin addiction was found in Caucasians. Statistically significant differences across four ethnic groups in control subjects for allelic frequencies of -261T>G and -161A>T were found.


Assuntos
Frequência do Gene , Haplótipos/genética , Dependência de Heroína/genética , Receptor 5-HT1B de Serotonina/genética , Negro ou Afro-Americano/genética , Povo Asiático/genética , População Negra/genética , Estudos de Casos e Controles , Predisposição Genética para Doença , Genótipo , Humanos , Polimorfismo Genético
14.
J Travel Med ; 12(5): 291-4, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-16256056

RESUMO

Penicillium marneffei has emerged as an important opportunistic pathogen in Southeast Asia during the human immunodeficiency virus (HIV) epidemic. We report a case of disseminated P. marneffei in a person with previously undiagnosed acquired immunodeficiency syndrome (AIDS) who traveled to Southeast Asia, illustrating the importance of considering this diagnosis in immunocompromised travelers.


Assuntos
Infecções Oportunistas Relacionadas com a AIDS/diagnóstico , Hospedeiro Imunocomprometido , Micoses/diagnóstico , Penicillium/isolamento & purificação , Viagem , Infecções Oportunistas Relacionadas com a AIDS/imunologia , Infecções Oportunistas Relacionadas com a AIDS/microbiologia , Adulto , Sudeste Asiático , Humanos , Masculino , Micoses/imunologia , Micoses/microbiologia
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