Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 90
Filtrar
Mais filtros

Base de dados
País/Região como assunto
Tipo de documento
Intervalo de ano de publicação
1.
Clin Orthop Relat Res ; 481(12): 2459-2468, 2023 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-37201553

RESUMO

BACKGROUND: Clinical guidelines recommend standing radiographs as the most appropriate imaging for detecting degenerative spondylolisthesis, although reliable evidence about the standing position is absent. To our knowledge, no studies have compared different radiographic views and pairings to detect the presence and magnitude of stable and dynamic spondylolisthesis. QUESTIONS/PURPOSES: (1) What is the percentage of new patients presenting with back or leg pain with stable (3 mm or greater listhesis on standing radiographs) and dynamic (3 mm or greater listhesis difference on standing-supine radiographs) spondylolisthesis? (2) What is the difference in the magnitude of spondylolisthesis between standing and supine radiographs? (3) What is the difference in the magnitude of dynamic translation among flexion-extension, standing-supine, and flexion-supine radiographic pairs? METHODS: This cross-sectional, diagnostic study was performed at an urban, academic institution between September 2010 and July 2016; 579 patients 40 years or older received a standard radiographic three-view series (standing AP, standing lateral, and supine lateral radiographs) at a new patient visit. Of those individuals, 89% (518 of 579) did not have any of the following: history of spinal surgery, evidence of vertebral fracture, scoliosis greater than 30°, or poor image quality. In the absence of a reliable diagnosis of dynamic spondylolisthesis using this three-view series, patients may have had flexion and extension radiographs, and approximately 6% (31 of 518) had flexion and extension radiographs. A total of 53% (272 of 518) of patients were female, and the patients had a mean age of 60 ± 11 years. Listhesis distance (in mm) was measured by two raters as displacement of the posterior surface of the superior vertebral body in relation to the posterior surface of the inferior vertebral body from L1 to S1; interrater and intrarater reliability, assessed with intraclass correlation coefficients, was 0.91 and 0.86 to 0.95, respectively. The percentage of patients with and the magnitude of stable spondylolisthesis was estimated on and compared between standing neutral and supine lateral radiographs. The ability of common pairs of radiographs (flexion-extension, standing-supine, and flexion-supine) to detect dynamic spondylolisthesis was assessed. No single radiographic view or pair was considered the gold standard because stable or dynamic listhesis on any radiographic view is often considered positive in clinical practice. RESULTS: Among 518 patients, the percentage of patients with spondylolisthesis was 40% (95% CI 36% to 44%) on standing radiographs alone, and the percentage of patients with dynamic spondylolisthesis was 11% (95% CI 8% to 13%) on the standing-supine pair. Standing radiographs detected greater listhesis than supine radiographs did (6.5 ± 3.9 mm versus 4.9 ± 3.8 mm, difference 1.7 mm [95% CI 1.2 to 2.1 mm]; p < 0.001). Among 31 patients, no single radiographic pairing identified all patients with dynamic spondylolisthesis. The listhesis difference detected between flexion-extension was no different from the listhesis difference detected between standing-supine (1.8 ± 1.7 mm versus 2.0 ± 2.2 mm, difference 0.2 mm [95% CI -0.5 to 1.0 mm]; p = 0.53) and flexion-supine (1.8 ± 1.7 mm versus 2.5 ± 2.2 mm, difference 0.7 mm [95% CI 0.0 to 1.5]; p = 0.06). CONCLUSION: This study supports current clinical guidelines that lateral radiographs should be obtained with patients in the standing position, because all cases of stable spondylolisthesis of 3 mm or greater were detected on standing radiographs alone. Each radiographic pair did not detect different magnitudes of listhesis, and no single pair detected all cases of dynamic spondylolisthesis. Clinical concern for dynamic spondylolisthesis may justify standing neutral, supine lateral, standing flexion, and standing extension views. Future studies could identify and evaluate a set of radiographic views that provides the greatest capacity to diagnose stable and dynamic spondylolisthesis. LEVEL OF EVIDENCE: Level III, diagnostic study.


Assuntos
Espondilolistese , Humanos , Feminino , Pessoa de Meia-Idade , Idoso , Masculino , Espondilolistese/diagnóstico por imagem , Posição Ortostática , Estudos Transversais , Reprodutibilidade dos Testes , Vértebras Lombares
2.
Neurourol Urodyn ; 40(8): 1929-1938, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34396562

RESUMO

AIMS: Features of central sensitization (CS) are present in almost all chronic pain conditions, including painful urinary conditions and back pain. Recently CS was proposed as a mechanism of nonpainful lower urinary tract symptoms (LUTS). Using musculoskeletal pain as an indicator of CS, we investigated whether the prevalence of musculoskeletal pain is greater among community-dwelling men with moderate or severe LUTS compared to those with mild LUTS. METHODS: We conducted a cross-sectional study of 5966 men ≥65 years who attended the Osteoporotic Fractures in Men Study baseline visit. LUTS were assessed with the American Urological Association Symptom Index (AUA-SI) and categorized as none/mild (0-7), moderate (8-19), or severe (≥20). Self-reported back, neck, hip, or knee pain within the 12 months before baseline was categorized as any pain and multilocation pain. We tested our hypothesis using odds ratios (OR) and 95% confidence intervals (CI) estimated from multivariable logistic regression models. RESULTS: The adjusted odds of any pain were higher among men with moderate (OR 1.49, 95% CI: 1.29-1.72) and severe LUTS (OR 1.76, 95% CI: 1.28-2.40) compared to those with no/mild LUTS. The adjusted odds of pain at ≥ 2 locations were 69% higher among men with moderate (OR 1.69, 95% CI: 1.45-196) and more than double among men with severe LUTS (OR 2.24, 95% CI: 1.62-3.10) compared to men with no/mild LUTS. CONCLUSIONS: Musculoskeletal pain, especially at multiple locations, is associated with greater LUTS severity among older men. CS may represent a novel shared mechanism of pain and LUTS.


Assuntos
Sintomas do Trato Urinário Inferior , Dor Musculoesquelética , Idoso , Sensibilização do Sistema Nervoso Central , Estudos Transversais , Humanos , Sintomas do Trato Urinário Inferior/epidemiologia , Masculino , Dor Musculoesquelética/epidemiologia , Fatores de Risco
3.
PLoS Genet ; 14(9): e1007601, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-30261039

RESUMO

Back pain is the #1 cause of years lived with disability worldwide, yet surprisingly little is known regarding the biology underlying this symptom. We conducted a genome-wide association study (GWAS) meta-analysis of chronic back pain (CBP). Adults of European ancestry were included from 15 cohorts in the Cohorts for Heart and Aging Research in Genomic Epidemiology (CHARGE) consortium, and from the UK Biobank interim data release. CBP cases were defined as those reporting back pain present for ≥3-6 months; non-cases were included as comparisons ("controls"). Each cohort conducted genotyping using commercially available arrays followed by imputation. GWAS used logistic regression models with additive genetic effects, adjusting for age, sex, study-specific covariates, and population substructure. The threshold for genome-wide significance in the fixed-effect inverse-variance weighted meta-analysis was p<5×10(-8). Suggestive (p<5×10(-7)) and genome-wide significant (p<5×10(-8)) variants were carried forward for replication or further investigation in the remaining UK Biobank participants not included in the discovery sample. The discovery sample comprised 158,025 individuals, including 29,531 CBP cases. A genome-wide significant association was found for the intronic variant rs12310519 in SOX5 (OR 1.08, p = 7.2×10(-10)). This was subsequently replicated in 283,752 UK Biobank participants not included in the discovery sample, including 50,915 cases (OR 1.06, p = 5.3×10(-11)), and exceeded genome-wide significance in joint meta-analysis (OR 1.07, p = 4.5×10(-19)). We found suggestive associations at three other loci in the discovery sample, two of which exceeded genome-wide significance in joint meta-analysis: an intergenic variant, rs7833174, located between CCDC26 and GSDMC (OR 1.05, p = 4.4×10(-13)), and an intronic variant, rs4384683, in DCC (OR 0.97, p = 2.4×10(-10)). In this first reported meta-analysis of GWAS for CBP, we identified and replicated a genetic locus associated with CBP (SOX5). We also identified 2 other loci that reached genome-wide significance in a 2-stage joint meta-analysis (CCDC26/GSDMC and DCC).


Assuntos
Dor nas Costas/genética , Dor Crônica/genética , Loci Gênicos , Fatores de Transcrição SOXD/genética , População Branca/genética , Biomarcadores Tumorais/genética , Receptor DCC/genética , Proteínas de Ligação a DNA/genética , Estudo de Associação Genômica Ampla , Humanos , Peptídeos e Proteínas de Sinalização Intracelular/genética , Íntrons/genética , Polimorfismo de Nucleotídeo Único , RNA Longo não Codificante
4.
J Urol ; 204(6): 1305-1311, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32924780

RESUMO

PURPOSE: Most international practice guidelines recommend screening for chronic kidney disease among older men with lower urinary tract symptoms. However, prior studies supporting these guidelines are insufficient due to incomplete assessments of kidney function and inadequate adjustment for confounding factors. MATERIALS AND METHODS: We conducted a cross-sectional study among 5,530 American men older than 65 years in the multicenter Osteoporotic Fractures in Men Study. Chronic kidney disease was defined per international guidelines as estimated glomerular filtration rate less than 60 ml/minute/1.73 m2 based on serum creatinine or cystatin C, or urinary albumin-to-creatinine ratio 30 mg/gm or greater. Lower urinary tract symptoms were assessed with the American Urological Association Symptom Index. Associations were estimated using multivariable linear and modified Poisson regression models. RESULTS: Chronic kidney disease prevalence was 16% among 5,530 men with serum creatinine, 24% among 1,504 men with serum cystatin C and 14% among 1,487 men with urinary albumin-to-creatinine measurements. Lower urinary tract symptoms were not associated with lower estimated glomerular filtration rate based on serum creatinine or cystatin C. Although symptom severity was modestly associated with a higher prevalence of chronic kidney disease in age/site adjusted analyses, confidence intervals were wide and associations using all 3 definitions were not statistically significant after adjustment for important confounders, including cardiovascular disease and analgesic use. CONCLUSIONS: Lower urinary tract symptoms are not independently associated with multiple measures of kidney dysfunction or prevalence of chronic kidney disease among older community dwelling men. Our results do not support recommendations for kidney function testing among older men with lower urinary tract symptoms.


Assuntos
Vida Independente/estatística & dados numéricos , Sintomas do Trato Urinário Inferior/epidemiologia , Insuficiência Renal Crônica/epidemiologia , Idoso , Idoso de 80 Anos ou mais , Albuminúria/diagnóstico , Fatores de Confusão Epidemiológicos , Creatinina/sangue , Creatinina/urina , Estudos Transversais , Cistatina C/sangue , Taxa de Filtração Glomerular/fisiologia , Humanos , Sintomas do Trato Urinário Inferior/complicações , Sintomas do Trato Urinário Inferior/diagnóstico , Sintomas do Trato Urinário Inferior/fisiopatologia , Masculino , Prevalência , Insuficiência Renal Crônica/sangue , Insuficiência Renal Crônica/diagnóstico , Insuficiência Renal Crônica/etiologia , Índice de Gravidade de Doença , Micção/fisiologia
5.
Mult Scler ; 25(8): 1178-1188, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-29985095

RESUMO

BACKGROUND: Mindfulness training is often used as a therapeutic intervention to manage stress and enhance emotional well-being, yet trials for multiple sclerosis (MS) are limited and few have used an active control. OBJECTIVE: Assess the feasibility of mindfulness-based stress reduction (MBSR) for people with MS and evaluate the efficacy of MBSR compared to an education control. METHODS: We conducted a single-blind, randomized trial of MBSR versus education control among 62 adults with MS. Primary outcomes were measures of feasibility. Secondary outcomes included perceived stress, anxiety, depression, fatigue, pain, resilience, and the Paced Auditory Serial Addition Test, assessed at baseline, 8 weeks, and 12 months. Mean scores for secondary outcome measures were compared between groups at each time point and within groups across time by analyses of covariance or paired t-tests, respectively. RESULTS: Successful recruitment and retention demonstrated feasibility. Improvements in several secondary outcomes were observed among both MBSR and control groups. However, differences between the groups were not statistically significant at either 8 weeks or 12 months. CONCLUSION: Emotional well-being improved with both MBSR and education. Spontaneous improvement cannot be ruled out as an explanation for findings and additional studies that evaluate the impact of mindfulness training to improve emotional health are warranted.


Assuntos
Atenção Plena/métodos , Esclerose Múltipla/psicologia , Avaliação de Resultados em Cuidados de Saúde , Estresse Psicológico/terapia , Adulto , Estudos de Viabilidade , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Psicoterapia de Grupo , Método Simples-Cego
6.
Clin Orthop Relat Res ; 477(4): 872-878, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30844824

RESUMO

BACKGROUND: Lower urinary tract symptoms (LUTS) and urinary bother have been reported in adults undergoing surgery and have been associated with urinary tract infections, longer hospital stays, increased surgical costs, and decreased patient satisfaction. Previous reports indicate that up to one in two patients with lumbar spine pathology have moderate-to-severe LUTS, but little is known about LUTS in patients with cervical spine conditions. QUESTIONS/PURPOSES: (1) What is the prevalence of moderate-to-severe LUTS and clinically relevant urinary bother among patients undergoing elective cervical spine surgery? (2) Does the presence of myelopathy affect frequency of moderate-to-severe LUTS or clinically relevant urinary bother among patients undergoing elective cervical spine surgery? (3) Do MRI findings of spinal cord injury or compression correlate with presence and severity of LUTS? METHODS: We performed a cross-sectional study using clinical data collected from adult patients undergoing elective cervical spine surgery. Over an approximately 30-month period, we approached all patients who were evaluated in the preoperative clinic before undergoing elective cervical spine surgery. Of the 257 approached, 242 participated (94%). Study participants ranged in age from 34 to 83 years with a mean age of 58 years (SD 12). There were 108 males (45%) and 134 females (55%). A validated questionnaire, the International Prostate Symptom Score (IPSS), was used to identify LUTS. The IPSS score ranges from 0 to 35 points with LUTS presence defined as a score of ≥ 8 and LUTS severity categorized as mild (IPSS 0-7), moderate (IPSS 8-19), or severe (IPSS 20-35). Quality of life resulting from urinary bother is scored 0 to 6 with scores ≥ 4 considered clinically relevant urinary bother. Patients were grouped into a myelopathy group and a nonmyelopathy group based on diagnosis as assigned by the operating surgeon. MRIs were analyzed by one spine surgeon to identify the presence of cord signal, number of levels with cord compression (mm), and a calculated compression ratio score with cord compression and with compression ratio among patients with myelopathy. RESULTS: The prevalence of moderate LUTS in our patient sample was 40% (97 of 242; 95% confidence interval [CI], 34%-47%). The prevalence of severe LUTS in our patient sample was 8% (19 of 242; 95% CI, 5%-12%). Clinically relevant urinary bother was reported in 18% of patients (41 of 228; 95% CI, 13%-24%). After adjustment for age and sex, the odds of moderate-to-severe LUTS among patients with myelopathy was greater than that observed in patients without myelopathy (adjusted odds ratio, 2.0; p = 0.015). The prevalence of clinically relevant urinary bother was higher in patients with myelopathy (30% [26 of 88]) compared with those with no myelopathy (11% [15 of 140]; p < 0.001). With the numbers available, among patients with myelopathy, there was no difference in distribution of LUTS symptom severity or IPSS score according to cord signal presence (50% [23 of 46]) and absence (65% [31 of 48]; p = 0.153), number of levels with compression (70% [seven of 10 with four levels]; 59% [13 of 22 with three levels]; 51% [19 of 37] with two levels; and 60% [15 of 25] with one level; p = 0.730), millimeters of cord compression (r = 0.02; p = 0.854), or compression ratio (r = 0.09; p = 0.413). CONCLUSIONS: Nearly half of all patients undergoing elective cervical spine surgery had moderate-to-severe LUTS. This is more than double the prevalence that has been reported in a community-dwelling adult population. These symptoms can impair quality of life, lead to surgical complications (urinary retention or incontinence), and may be mistaken for cauda equina, prompting potentially unnecessary imaging and studies. Given that urinary bother is reported less frequently than LUTS, patients may be less likely to seek care for urinary symptoms before undergoing surgery. Therefore, it is important to increase provider awareness of the high prevalence of LUTS. LEVEL OF EVIDENCE: Level III, prognostic study.


Assuntos
Sintomas do Trato Urinário Inferior/epidemiologia , Procedimentos Ortopédicos , Doenças da Medula Espinal/cirurgia , Medula Espinal/cirurgia , Transtornos Urinários/epidemiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Vértebras Cervicais , Efeitos Psicossociais da Doença , Estudos Transversais , Procedimentos Cirúrgicos Eletivos , Feminino , Humanos , Sintomas do Trato Urinário Inferior/diagnóstico , Sintomas do Trato Urinário Inferior/fisiopatologia , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Oregon/epidemiologia , Procedimentos Ortopédicos/efeitos adversos , Prevalência , Qualidade de Vida , Medula Espinal/diagnóstico por imagem , Medula Espinal/fisiopatologia , Doenças da Medula Espinal/diagnóstico por imagem , Doenças da Medula Espinal/epidemiologia , Doenças da Medula Espinal/fisiopatologia , Transtornos Urinários/diagnóstico , Transtornos Urinários/fisiopatologia
7.
J Clin Densitom ; 20(2): 256-264, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28238606

RESUMO

Visceral adipose tissue (VAT) measured by computed tomography (CT) is related to insulin resistance, lipids, and serum inflammatory markers. Our objective was to compare the strength of the associations of VAT measured using dual-energy X-ray absorptiometry (DXA-VAT) and CT (CT-VAT) with insulin resistance, serum lipids, and serum markers of inflammation. For 1117 men aged 65 and older enrolled in the Osteoporotic Fractures in Men Study, the cross-sectional associations of DXA-VAT and CT-VAT with homeostasis model assessment of insulin resistance (homa2ir), C-reactive protein, and high-density lipoprotein (HDL) cholesterol were estimated with regression models and compared using a Hausman test. Adjusted for age and body mass index, DXA-VAT was moderately associated with homa2ir (effect size 0.38, 95% confidence interval [CI]: 0.28-0.47) and modestly associated with HDL cholesterol (DXA effect size -0.29, 95% CI: -0.38 to -0.21). These associations were significantly greater than those for CT-VAT with homa2ir (0.30, 95% CI: 0.24-0.37; p value for effect size difference 0.03) and CT-VAT with HDL cholesterol (-0.22, 95% CI: -0.29 to -0.15; p value for difference 0.005). Neither DXA-VAT nor CT-VAT was associated with C-reactive protein after adjustment for age and body mass index (DXA-VAT effect size 0.14, 95% CI: -0.04 to 0.32; CT-VAT effect size 0.08, 95% CI: -0.08 to 0.25; p value for difference 0.35). DXA-VAT has similar or greater associations with insulin resistance and HDL cholesterol as does CT-VAT in older men, confirming the concurrent validity of DXA-VAT. Investigations of how well DXA measurements of VAT predict incident cardiovascular disease events are warranted.


Assuntos
Absorciometria de Fóton , Proteína C-Reativa/metabolismo , HDL-Colesterol/sangue , Resistência à Insulina , Gordura Intra-Abdominal/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Idoso , LDL-Colesterol/sangue , Homeostase , Humanos , Interleucina-6/sangue , Masculino , Triglicerídeos/sangue , Fator de Necrose Tumoral alfa/sangue
8.
J Urol ; 196(1): 166-72, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-26905017

RESUMO

PURPOSE: Among older men, moderate and severe lower urinary tract symptoms are associated with increased fall risk compared to mild lower urinary tract symptoms. Falls are a major risk factor for fractures. Therefore, we assessed associations of lower urinary tract symptoms with fracture risk in community dwelling U.S. men age 65 years or older. MATERIALS AND METHODS: We conducted a prospective study in the MrOS (Osteoporotic Fractures in Men Study) cohort. Men were enrolled at 6 U.S. sites. The AUA-SI, lower urinary tract symptoms medication use, fracture risk factors and potential confounders were recorded at baseline and every 2 years thereafter for 4 assessments. Lower urinary tract symptom severity was categorized from the AUA-SI as mild (0 to 7 points), moderate (8 to 19 points) or severe (20 or more points). Associations of lower urinary tract symptom severity with fracture rate were estimated with HRs and 95% CIs from extended proportional hazards regression. RESULTS: Among 5,989 men with baseline AUA-SI score and hip bone mineral density measures, 745 incident nonspine fractures occurred during 43,807 person-years of followup. In a multivariable model adjusted for age, enrollment site, baseline hip bone mineral density, falls in the last year and prevalent fracture before baseline, there were no significant associations of moderate (HR 0.9, 95% CI 0.8-1.1) or severe (HR 1.0, 95% CI 0.8-1.3) lower urinary tract symptoms with fracture risk. None of the individual lower urinary tract symptoms assessed on the AUA-SI, including nocturia and urgency, was associated with increased fracture risk. CONCLUSIONS: In this cohort of older U.S. men, lower urinary tract symptoms were not independently associated with fracture risk.


Assuntos
Fraturas Ósseas/etiologia , Sintomas do Trato Urinário Inferior/complicações , Acidentes por Quedas , Idoso , Idoso de 80 Anos ou mais , Seguimentos , Humanos , Vida Independente , Masculino , Estudos Prospectivos , Fatores de Risco , Estados Unidos
9.
South Med J ; 109(1): 53-60, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26741876

RESUMO

OBJECTIVES: Outpatient parenteral antimicrobial therapy (OPAT) is an effective way of treating infections, but complications are common. We identified patient characteristics and OPAT treatment factors associated with increased risk of OPAT-related complications. METHODS: We used a retrospective cohort design that assessed 337 adult patients treated with OPAT for orthopedic and neurosurgical infections between August 1, 2008 and May 30, 2010. Independent variables included demographics, infection characteristics, lead time factors, OPAT treatment factors, and comorbid conditions. Multivariable log-binomial regression was used to estimate the risk of OPAT complications. RESULTS: The mean patient age was 55 years (range 19-87), 86% had an orthopedic infection, and 44% were treated with intravenous vancomycin. OPAT complications were seen in 45% (152/337) of the cohort. Risk ratios for OPAT complications were 1.9 (95% confidence interval 1.4-2.5) in patients having no primary care provider, 1.7 (95% confidence interval 1.3-2.1) for those treated with vancomycin. CONCLUSIONS: Identifying specific patient characteristics and OPAT treatment factors could facilitate OPAT process improvements to reduce the risk of OPAT complications for vulnerable patients.


Assuntos
Anti-Infecciosos/administração & dosagem , Anti-Infecciosos/efeitos adversos , Doenças Ósseas/tratamento farmacológico , Doenças do Sistema Nervoso/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Feminino , Humanos , Injeções Intravenosas , Masculino , Pessoa de Meia-Idade , Ambulatório Hospitalar , Estudos Retrospectivos , Fatores de Risco , Vancomicina/administração & dosagem , Vancomicina/efeitos adversos , Adulto Jovem , beta-Lactamas/efeitos adversos
10.
Circ Res ; 113(10): 1159-68, 2013 Oct 25.
Artigo em Inglês | MEDLINE | ID: mdl-24036495

RESUMO

RATIONALE: Mutations in fibrillin-1 are associated with thoracic aortic aneurysm (TAA) in Marfan syndrome. Genome-wide association studies also implicate fibrillin-1 in sporadic TAA. Fragmentation of the aortic elastic lamellae is characteristic of TAA. OBJECTIVE: Immunoassays were generated to test whether circulating fragments of fibrillin-1, or other microfibril fragments, are associated with TAA and dissection. METHODS AND RESULTS: Plasma samples were obtained from 1265 patients with aortic aneurysm or dissection and from 125 control subjects. Concentrations of fibrillin-1, fibrillin-2, and fibulin-4 were measured with novel immunoassays. One hundred and seventy-four patients (13%) had aneurysms with only abdominal aortic involvement (abdominal aortic aneurysm), and 1091 (86%) had TAA. Of those with TAA, 300 patients (27%) had chronic dissection and 109 (10%) had acute or subacute dissection. Associations of fragment concentrations with TAA (versus abdominal aortic aneurysm) or with dissection (versus no dissection) were estimated with odds ratios (OR) and 95% confidence intervals (CI) adjusted for age, sex, and smoking. Compared with controls, significantly higher percentages of aneurysm patients had detectable levels of fibrillin fragments. TAA was significantly more common (than abdominal aortic aneurysm) in the highest compared with lowest quartile of fibrillin-1 concentration (OR=2.9; 95% CI, 1.6-5.0). Relative to TAA without dissection, acute or subacute dissection (OR=2.9; 95% CI, 1.6-5.3), but not chronic dissection, was more frequent in the highest compared with lowest quartile of fibrillin-1 concentration. Neither TAA nor dissection was associated with fibrillin-2 or fibulin-4. CONCLUSIONS: Circulating fibrillin-1 fragments represent a new potential biomarker for TAA and acute aortic dissection.


Assuntos
Aneurisma da Aorta Torácica/sangue , Aneurisma da Aorta Torácica/epidemiologia , Dissecção Aórtica/sangue , Dissecção Aórtica/epidemiologia , Proteínas dos Microfilamentos/sangue , Idoso , Aneurisma da Aorta Abdominal/sangue , Aneurisma da Aorta Abdominal/epidemiologia , Biomarcadores/sangue , Estudos Transversais , Proteínas da Matriz Extracelular/sangue , Feminino , Fibrilina-1 , Fibrilina-2 , Fibrilinas , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco
11.
Age Ageing ; 43(1): 103-8, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24002237

RESUMO

BACKGROUND: small, retrospective studies suggest that major life events and/or sudden emotional stress may increase fall and fracture risk. The current study examines these associations prospectively. METHODS: a total of 5,152 men aged ≥65 years in the Osteoporotic Fractures in Men study self-reported data on stressful life events for 1 year prior to study Visit 2. Incident falls and fractures were ascertained for 1 year after Visit 2. Fractures were centrally confirmed. RESULTS: a total of 2,932 (56.9%) men reported ≥1 type of stressful life event. In men with complete stressful life event, fall and covariate data (n = 3,949), any stressful life event was associated with a 33% increased risk of incident fall [relative risk (RR) 1.33, 95% confidence interval (CI) 1.19-1.49] and 68% increased risk of multiple falls (RR = 1.68, 95% CI = 1.40-2.01) in the year following Visit 2 after adjustment for age, education, Parkinson's disease, diabetes, stroke, instrumental activities of daily living (IADL) impairment, chair stand time, walk speed, multiple past falls, depressive symptoms and antidepressant use. Risk increased with the number of types of stressful life events. Though any stressful life event was associated with a 58% increased age-adjusted risk for incident fracture, this association was attenuated and no longer statistically significant after additional adjustment for total hip bone mineral density, fracture after age 50, Parkinson's disease, stroke and IADL impairment. CONCLUSIONS: in this cohort of older men, stressful life events significantly increased risk of incident falls independent of other explanatory variables, but did not independently increase incident fracture risk.


Assuntos
Acidentes por Quedas , Acontecimentos que Mudam a Vida , Fraturas por Osteoporose/epidemiologia , Estresse Psicológico/epidemiologia , Fatores Etários , Idoso , Humanos , Incidência , Masculino , Fraturas por Osteoporose/diagnóstico , Estudos Prospectivos , Fatores de Risco , Fatores Sexuais , Estresse Psicológico/diagnóstico , Fatores de Tempo , Estados Unidos/epidemiologia
12.
BMC Musculoskelet Disord ; 15: 19, 2014 Jan 16.
Artigo em Inglês | MEDLINE | ID: mdl-24428860

RESUMO

BACKGROUND: The prevalence of hyperkyphosis is increased in older men; however, risk factors other than age and vertebral fractures are not well established. We previously reported that poor paraspinal muscle composition contributes to more severe kyphosis in a cohort of both older men and women. METHODS: To specifically evaluate this association in older men, we conducted a cross-sectional study to evaluate the association of paraspinal muscle composition and degree of thoracic kyphosis in an analytic cohort of 475 randomly selected participants from the Osteoporotic Fractures in Men (MrOS) study with baseline abdominal quantitative computed tomography (QCT) scans and plain thoracic radiographs. Baseline abdominal QCT scans were used to obtain abdominal body composition measurements of paraspinal muscle and adipose tissue distribution. Supine lateral spine radiographs were used to measure Cobb angle of kyphosis. We examined the linear association of muscle volume, fat volume and kyphosis using loess plots. Multivariate linear models were used to investigate the association between muscle and kyphosis using total muscle volume, as well as individual components of the total muscle volume, including adipose and muscle compartments alone, controlling for age, height, vertebral fractures, and total hip bone mineral density (BMD). We examined these associations among those with no prevalent vertebral fracture and those with BMI < 30 kg/m2. RESULTS: Among men in the analytic cohort, means (SD) were 74 (SD = 5.9) years for age, and 37.5 (SD = 11.9) degrees for Cobb angle of kyphosis. Men in the lowest tertile of total paraspinal muscle volume had greater mean Cobb angle than men in the highest tertile, although test of linear trend across tertiles did not reach statistical significance. Neither lower paraspinal skeletal muscle volume (p-trend = 0.08), or IMAT (p-trend = 0.96) was associated with greater kyphosis. Results were similar among those with no prevalent vertebral fractures. However, among men with BMI < 30 kg/m2, those in the lowest tertile of paraspinal muscle volume had greater adjusted mean kyphosis (40.0, 95% CI: 37.8 - 42.1) compared to the highest tertile (36.3, 95% CI: 34.2 - 38.4). CONCLUSIONS: These results suggest that differences in body composition may potentially influence kyphosis.


Assuntos
Composição Corporal , Cifose/fisiopatologia , Fraturas por Osteoporose/fisiopatologia , Músculos Paraespinais/fisiopatologia , Fraturas da Coluna Vertebral/fisiopatologia , Adiposidade , Fatores Etários , Idoso , Estudos Transversais , Humanos , Cifose/diagnóstico por imagem , Cifose/epidemiologia , Modelos Lineares , Masculino , Análise Multivariada , Fraturas por Osteoporose/diagnóstico por imagem , Fraturas por Osteoporose/epidemiologia , Músculos Paraespinais/diagnóstico por imagem , Prevalência , Fatores de Risco , Índice de Gravidade de Doença , Fatores Sexuais , Fraturas da Coluna Vertebral/diagnóstico por imagem , Fraturas da Coluna Vertebral/epidemiologia , Tomografia Computadorizada por Raios X , Estados Unidos
13.
Pain Rep ; 9(2): e1132, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38500566

RESUMO

Introduction: Lumbosacral radiculopathy (LR), also known as sciatica, is a common type of radiating neurologic pain involving burning, tingling, and numbness in the lower extremities. It has an estimated lifetime prevalence as high as 43%. Objectives: The objective of this randomized controlled trial was to evaluate the impact of virtually delivered Mindfulness-Oriented Recovery Enhancement (MORE) on patients with LR during the COVID-19 pandemic. Methods: Potentially eligible patients were identified using electronic health record queries and phone screenings. Participants were then randomized to MORE or treatment-as-usual (TAU) for 8 weeks, with pain intensity assessed daily. At baseline and follow-up visits, participants completed questionnaires assessing the primary outcome, disability, as well as quality of life, depression, mindful reinterpretation of pain, and trait mindfulness. Results: In our study, patients undergoing virtual delivery of MORE had greater improvements in daily pain intensity (P = 0.002) but not in disability (P = 0.09), depression (P = 0.26), or quality of life (P = 0.99 and P = 0.89, SF-12 physical and mental component scores, respectively), relative to TAU patients. In addition, patients in MORE experienced significantly greater increases in mindful reinterpretation of pain (P = 0.029) and trait mindfulness (P = 0.035). Conclusion: Among patients with lumbar radiculopathy, MORE significantly reduced daily pain intensity but did not decrease disability or depression symptoms. Given the long duration of symptoms in our sample, we hypothesize the discrepancy between changes in daily pain intensity and disability is due to fear avoidance behaviors common in patients with chronic pain. As the first trial of a mindfulness intervention in patients with LR, these findings should inform future integrative approaches to LR treatment, particularly when considering the increasing use of virtual interventions throughout the COVID-19 pandemic.

14.
Ann Epidemiol ; 84: 1-7, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37146922

RESUMO

PURPOSE: To study familial factors associated with child maltreatment in a birth population, Alaska piloted a mixed-design method that linked child welfare data with the Pregnancy Risk Assessment Monitoring System (PRAMS). We replicated this approach in Oregon and validated it in both states. METHODS: We linked vital records, child welfare, and PRAMS data to create two 2009 birth cohorts for each state: one based on vital records (full birth cohort) and one on PRAMS (stratified random sample). For each cohort, we estimated the incidence proportions (IP) of child maltreatment before age 9 years and compared those estimated using PRAMS with those observed using the full birth cohort. RESULTS: The Oregon PRAMS cohort estimated that 28.7% (95% CI: 24.0, 33.4), 20.9% (17.1, 24.7), and 8.3% (6.0, 10.5) of children experienced an alleged, investigated, and substantiated maltreatment, respectively, versus 32.0%, 25.0%, and 9.9% from the birth cohort. The corresponding Alaska estimates were 29.1% (26.1, 32.0), 22.6% (19.9, 25.2), and 8.3% (6.7, 9.9) of children from the PRAMS cohort versus 29.1%, 23.5%, and 9.1% in the birth cohort. CONCLUSIONS: The IP of child maltreatment in two states was accurately estimated with PRAMS cohorts. Researchers can study a comprehensive set of factors that may influence child maltreatment by incorporating PRAMS into birth cohort linkages.


Assuntos
Maus-Tratos Infantis , Criança , Feminino , Humanos , Gravidez , Incidência , Projetos de Pesquisa , Medição de Risco , Alaska/epidemiologia
15.
J Am Geriatr Soc ; 71(4): 1093-1104, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36522685

RESUMO

BACKGROUND: Life-space mobility represents the distance, frequency, and independence of mobility, ranging from one's bedroom to beyond their town. Older men with lower urinary tract symptoms (LUTS) may limit their life-space to stay close to a bathroom. However, it's unknown whether LUTS severity or urinary bother are associated with risk of life-space mobility restriction. METHODS: We analyzed data from 3025 community-dwelling men age ≥71 years without life-space mobility restriction at analytic baseline (Year 7) of the Osteoporotic Fractures in Men (MrOS) study. The American Urologic Association Symptom Index (AUASI) was assessed at baseline and includes one question assessing urinary bother ("If you were to spend the rest of your life with your urinary condition just the way it is now, how would you feel about that?"; score 0-1,2,3,4-6) and seven items to classify LUTS severity as none/mild (score 0-7), moderate (8-19), or severe (20-35). The University of Alabama Life-space Assessment was used to define life-space mobility restriction (≤60) at baseline and follow-up (Year 9). We used log-binomial regression with robust variance estimators to model adjusted risk ratios (ARR) for LUTS severity and urinary bother with incident life-space mobility restriction, controlling for age, site, health-related factors, and comorbidities. We then mutually adjusted for urinary bother and LUTS severity. RESULTS: Overall, the 2-year risk of life-space mobility restrictions was 9.9%. Compared to men without urinary bother (scores 0-1), the risk of life-space mobility restriction was significantly higher among men with bother scores of 4-6 (ARR = 2.20, 95% CI: 1.52, 3.19), independent of LUTS severity and confounders. Conversely, LUTS severity was not independently associated with the risk of life-space mobility restriction. CONCLUSIONS: Urinary bother, but not LUTS severity, is independently associated with incident life-space mobility restriction among older men. To maintain life-space mobility in older men with LUTS, future studies should identify shared mechanisms and interventions that minimize urinary bother.


Assuntos
Avaliação Geriátrica , Locomoção , Sintomas do Trato Urinário Inferior , Humanos , Masculino , Idoso , Idoso de 80 Anos ou mais , Sintomas do Trato Urinário Inferior/epidemiologia , Sintomas do Trato Urinário Inferior/fisiopatologia , Sintomas do Trato Urinário Inferior/psicologia , Incontinência Urinária/epidemiologia , Incontinência Urinária/fisiopatologia , Incontinência Urinária/psicologia , Estudos de Coortes , Autorrelato , Fraturas Ósseas , Vida Independente
16.
J Womens Health (Larchmt) ; 32(3): 323-331, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36399604

RESUMO

Background: Osteoporosis is common among older adults. Women are more likely to have osteoporosis than men. The prevalence varies with race/ethnicity, with the highest prevalence observed among non-Hispanic, Asian women. Prior studies identified a negative association between smoking and bone mineral density (BMD). The association between smoking and osteoporosis has not been investigated according to race/ethnicity. Materials and Methods: We included 4,226 U.S. adults aged 50 years or older with complete information on smoking history, BMD, and other independent variables from the 2005-2010 National Health and Nutrition Examination Surveys. Design-based multinomial logistic regression was utilized to estimate prevalence odds ratios (POR) of osteoporosis (T-score ≤ -2.5) and of low bone density (T-score between -1.0 and -2.5) in relation to lifetime smoking pack-years, stratified by sex and race/ethnicity. Results: Participants were 61.5 (standard error 0.21) years old on average and 48% women (n = 2,027). Among women, a smoking history ≥30 pack-years was positively associated with osteoporosis (POR: 2.40; 95% confidence interval [CI]: 1.42-4.06). Similar POR were observed among non-Hispanic White, non-Hispanic Black, and Mexican American women. However, POR for ≥30 pack-years and low bone density were positive but not statistically significant. Among men, null associations of smoking history, osteoporosis, and low bone density were observed, except for a positive association of ≥30 pack-years and low bone density among non-Hispanic Black men. Conclusion: Osteoporosis was twice as prevalent among women who smoked ≥30 pack-years than among women who never smoked, regardless of race/ethnicity. Smoking history and osteoporosis were not associated among men.


Assuntos
Doenças Ósseas Metabólicas , Osteoporose , Masculino , Humanos , Feminino , Idoso , Lactente , Prevalência , Inquéritos Nutricionais , Osteoporose/epidemiologia , Densidade Óssea , Fumar/epidemiologia
17.
J Gerontol A Biol Sci Med Sci ; 78(6): 997-1004, 2023 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-36149833

RESUMO

BACKGROUND: Musculoskeletal pain, a possible marker of central sensitization, is associated with higher prevalence of lower urinary tract symptoms (LUTS) among older men. We investigated whether musculoskeletal pain is associated with LUTS progression. METHODS: Participants were 5 569 men age ≥65 years enrolled in the prospective, multicenter Osteoporotic Fractures in Men (MrOS) Study. Self-reported musculoskeletal pain within 12 months before baseline was categorized as any pain and multilocation pain. Pain interference within 4 weeks of baseline was assessed with the SF-12 questionnaire. LUTS were assessed repeatedly with the American Urological Association Symptom Index (AUA-SI). Men with severe LUTS at baseline were excluded. LUTS progression was defined as the first occurrence of a ≥4-point AUA-SI increase during a 2-year follow-up interval. Incidence rate ratios (IRR) and 95% confidence intervals (CI) were estimated using multivariable pooled logistic regression. RESULTS: LUTS progression was 37% higher among men with any musculoskeletal pain compared with men without pain (IRR 1.37, 95% CI: 1.21, 1.54). Positive associations were also observed between LUTS progression and pain at 1 (IRR 1.31, 95% CI: 1.13, 1.48) and ≥2 locations (IRR 1.42, 95% CI: 1.24, 1.60). Compared with men without pain interference, men with quite a bit/extreme pain interference were most likely to experience LUTS progression (minimal interference IRR 1.15, 95% CI: 1.03, 1.26; moderate interference IRR 1.28, 95% CI: 1.11, 1.45; quite a bit/extreme interference IRR 1.47, 95% CI: 1.22, 1.71). CONCLUSIONS: Among men initially without severe LUTS, musculoskeletal pain is associated with an increased risk of LUTS progression. Studies using validated measures of central sensitization and LUTS progression among men are warranted.


Assuntos
Sintomas do Trato Urinário Inferior , Dor Musculoesquelética , Masculino , Humanos , Idoso , Vida Independente , Estudos Prospectivos , Dor Musculoesquelética/epidemiologia , Sensibilização do Sistema Nervoso Central , Sintomas do Trato Urinário Inferior/complicações , Sintomas do Trato Urinário Inferior/epidemiologia
18.
Acad Radiol ; 30(12): 2973-2987, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37438161

RESUMO

RATIONALE AND OBJECTIVES: Spinal osteoporotic compression fractures (OCFs) can be an early biomarker for osteoporosis but are often subtle, incidental, and underreported. To ensure early diagnosis and treatment of osteoporosis, we aimed to build a deep learning vertebral body classifier for OCFs as a critical component of our future automated opportunistic screening tool. MATERIALS AND METHODS: We retrospectively assembled a local dataset, including 1790 subjects and 15,050 vertebral bodies (thoracic and lumbar). Each vertebral body was annotated using an adaption of the modified-2 algorithm-based qualitative criteria. The Osteoporotic Fractures in Men (MrOS) Study dataset provided thoracic and lumbar spine radiographs of 5994 men from six clinical centers. Using both datasets, five deep learning algorithms were trained to classify each individual vertebral body of the spine radiographs. Classification performance was compared for these models using multiple metrics, including the area under the receiver operating characteristic curve (AUC-ROC), sensitivity, specificity, and positive predictive value (PPV). RESULTS: Our best model, built with ensemble averaging, achieved an AUC-ROC of 0.948 and 0.936 on the local dataset's test set and the MrOS dataset's test set, respectively. After setting the cutoff threshold to prioritize PPV, this model achieved a sensitivity of 54.5% and 47.8%, a specificity of 99.7% and 99.6%, and a PPV of 89.8% and 94.8%. CONCLUSION: Our model achieved an AUC-ROC>0.90 on both datasets. This testing shows some generalizability to real-world clinical datasets and a suitable performance for a future opportunistic osteoporosis screening tool.


Assuntos
Aprendizado Profundo , Fraturas por Compressão , Osteoporose , Fraturas da Coluna Vertebral , Masculino , Humanos , Fraturas por Compressão/diagnóstico por imagem , Estudos Retrospectivos , Densidade Óssea , Fraturas da Coluna Vertebral/diagnóstico por imagem , Osteoporose/complicações , Osteoporose/diagnóstico por imagem , Vértebras Lombares/diagnóstico por imagem , Algoritmos
19.
Breastfeed Med ; 17(9): 768-775, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35960501

RESUMO

Introduction: Given the known relationships between breastfeeding and hypertension, and between hypertension and stroke, we examined the association between breastfeeding a child and stroke later in life. We hypothesized a history of breastfeeding is associated with lower prevalence of stroke. Methods: Our study population included parous females 20 years and older. Potential confounders included family income-to-poverty ratio, education, smoking status, parity, and age at first live birth. Potential effect measure modifiers included race/ethnicity and age at survey. Multivariable logistic regression models were used to estimate crude and adjusted prevalence odds ratios (ORs) and 95% confidence intervals (CIs) for the association between breastfeeding and stroke. Results: The odds of stroke among those who ever breastfed were lower than those who never breastfed (OR = 0.68, 95% CI: 0.55-0.86; p < 0.01). Adjusting for education decreased the strength of the association (OR = 0.80, 95% CI: 0.63-1.01; p = 0.06). In analyses stratified by age, the inverse association between breastfeeding status was significant among those ages 20-64 years (OR = 0.69, 95% CI: 0.47-1.00) but not among those 65 years and older (OR = 0.99, 95% CI: 0.73-1.34). Conclusions: Ever breastfeeding a child was associated with lower prevalence of stroke in a nationally representative U.S. sample of parous females 20 years and older. Results were strongest among those <65 years old.


Assuntos
Aleitamento Materno , Acidente Vascular Cerebral , Adulto , Idoso , Feminino , Humanos , Hipertensão/epidemiologia , Pessoa de Meia-Idade , Inquéritos Nutricionais , Gravidez , Prevalência , Acidente Vascular Cerebral/epidemiologia , Adulto Jovem
20.
Acad Radiol ; 29(12): 1819-1832, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35351363

RESUMO

RATIONALE AND OBJECTIVES: Osteoporosis affects 9% of individuals over 50 in the United States and 200 million women globally. Spinal osteoporotic compression fractures (OCFs), an osteoporosis biomarker, are often incidental and under-reported. Accurate automated opportunistic OCF screening can increase the diagnosis rate and ensure adequate treatment. We aimed to develop a deep learning classifier for OCFs, a critical component of our future automated opportunistic screening tool. MATERIALS AND METHODS: The dataset from the Osteoporotic Fractures in Men Study comprised 4461 subjects and 15,524 spine radiographs. This dataset was split by subject: 76.5% training, 8.5% validation, and 15% testing. From the radiographs, 100,409 vertebral bodies were extracted, each assigned one of two labels adapted from the Genant semiquantitative system: moderate to severe fracture vs. normal/trace/mild fracture. GoogLeNet, a deep learning model, was trained to classify the vertebral bodies. The classification threshold on the predicted probability of OCF outputted by GoogLeNet was set to prioritize the positive predictive value (PPV) while balancing it with the sensitivity. Vertebral bodies with the top 0.75% predicted probabilities were classified as moderate to severe fracture. RESULTS: Our model yielded a sensitivity of 59.8%, a PPV of 91.2%, and an F1 score of 0.72. The areas under the receiver operating characteristic curve (AUC-ROC) and the precision-recall curve were 0.99 and 0.82, respectively. CONCLUSION: Our model classified vertebral bodies with an AUC-ROC of 0.99, providing a critical component for our future automated opportunistic screening tool. This could lead to earlier detection and treatment of OCFs.


Assuntos
Aprendizado Profundo , Fraturas por Compressão , Osteoporose , Fraturas da Coluna Vertebral , Masculino , Feminino , Humanos , Fraturas por Compressão/diagnóstico por imagem , Fraturas da Coluna Vertebral/diagnóstico por imagem , Osteoporose/diagnóstico por imagem , Radiografia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA