Prevalencia de osteopenia del prematuro antes y después de la implementación de una estrategia temprana de manejo fosfocálcico / Prevalence of osteopenia of prematurity before and after implementing an early strategy with the use of calcium and phosphate

Introducción. Con el uso de la nutrición parenteral agresiva en recién nacidos de muy bajo peso, se detectaron alteraciones del metabolismo fosfocálcico. En 2016 se implementó una estrategia de prevención a través del monitoreo fosfocálcico y su suplementación temprana. El objetivo fue estudiar si esta estrategia disminuye la prevalencia de osteopenia e identificar factores de riesgo asociados. Población y métodos. Estudio cuasiexperimental que comparó la prevalencia de osteopenia entre dos grupos: uno después de implementar la estrategia de monitoreo y suplementación fosfocálcica (01/01/2017-31/12/2019), y otro previo a dicha intervención (01/01/2013-31/12/2015). Resultados. Se incluyeron 226 pacientes: 133 pertenecen al período preintervención y 93 al posintervención. La prevalencia de osteopenia global fue del 26,1 % (IC95% 20,5-32,3) y disminuyó del 29,3 % (IC95% 21,7-37,8) en el período preintervención al 21,5 % (IC95% 13,6-31,2) en el posintervención, sin significancia estadística (p = 0,19). En el análisis multivariado, el puntaje NEOCOSUR de riesgo de muerte al nacer, recibir corticoides posnatales y el período de intervención se asociaron de manera independiente a osteopenia. Haber nacido luego de la intervención disminuyó un 71 % la probabilidad de presentar fosfatasa alcalina >500 UI/L independientemente de las restantes variables incluidas en el modelo. Conclusión. La monitorización y suplementación fosfocálcica precoz constituye un factor protector para el desarrollo de osteopenia en recién nacidos con muy bajo peso al nacer.

Introduction. With the use of aggressive parenteral nutrition in very low birth weight infants, alterations in calcium and phosphate metabolism were detected. In 2016, a prevention strategy was implemented through calcium phosphate monitoring and early supplementation. Our objective was to study whether this strategy reduces the prevalence of osteopenia and to identify associated risk factors. Population and methods. Quasi-experiment comparing the prevalence of osteopenia between two groups: one after implementing the calcium phosphate monitoring and supplementation strategy (01/01/2017­12/31/2019) and another prior to such intervention (01/01/2013­12/31/2015). Results. A total of 226 patients were included: 133 in the pre-intervention period and 93 in the post-intervention period. The overall prevalence of osteopenia was 26.1% (95% CI: 20.5­32.3) and it was reduced from 29.3% (95% CI: 21.7­37.8) in the pre-intervention period to 21.5% (95% CI: 13.6­31.2) in the post-intervention period, with no statistical significance (p = 0.19). In the multivariate analysis, the NEOCOSUR score for risk of death at birth, use of postnatal corticosteroids, and the intervention period were independently associated with osteopenia. Being born after the intervention reduced the probability of alkaline phosphatase > 500 IU/L by 71%, regardless of the other variables included in the model. Conclusion. Calcium phosphate monitoring and early supplementation is a protective factor against the development of osteopenia in very low birth weight infants.

Frequency of osteopenia and osteoporosis in men and women living with HIV/Aids: an observational study / Frequência de osteopenia e osteoporose em homens e mulheres vivendo com HIV/Aids: um estudo observacional

ABSTRACT: Aims: To identify the frequency in changes of bone metabolism, including below the average value for age, osteopenia, and osteoporosis, in people living with HIV/AIDS (PLWHA) and to compare the frequency of factors associated with bone mineral density (BMD) and body composition between sex. Methods: This observational study assessed 106 PLWHA (65 male) recruited from the University Hospital of Ribeirão Preto Medical School from 2013 to 2014. BMD was measured using Dual Energy X-ray Absorptiometry (DXA). Standard deviation values for Z- and T-score proposed by the International Society for Clinical Densitometry were adopted to classify participants below the average value for age, osteopenia, and osteoporosis. Qui-square and Fischer's exact tests were employed to compare males and females based on their factors associated with BMD reduction. Results: Fifty-two (49%) PLWHA presented at least one diagnosis for below the average value for age, osteopenia, and osteoporosis, being 37 (57%) and 15 (37%) male and female, respec-tively. Frequency of alcohol consumption was higher in males (n=20; 30.8%) than females (n=05; 12.2%) (p=0.028).Conclusions: A high rate of PLWHA showed changes in bone metabolism, with a higher frequency in males. The fre-quency of alcohol consumption was higher in males, and it may partially explain the possible causes of the increased rates of bone metabolism changes observed in this group. This information may help develop strategies for reducing the frequency of diagnosis for below the average value for age, osteopenia, osteoporosis improving quality of life in PLWHA. (AU)

RESUMO: Objetivos: Identificar a frequência de alterações no metabolismo ósseo, incluindo valores abaixo do estimado para idade, osteopenia e osteoporose, em pessoas vivendo com HIV/Aids (PVHA) e comparar a frequência de fatores associados à redução da densidade mineral óssea (DMO) e composição corporal entre sexos. Métodos: Estudo observacional que ava-liou 106 PVHA (65 do sexo masculino) recrutadas do Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo entre os anos 2013 e 2014. A DMO foi medida utilizando a Absorciometria Radiológica de Dupla Energia (DXA). Valores de desvio padrão Z- e T- scores propostos pela Sociedade Internacional para Densitometria Clí-nica foram adotados para classificar os participantes em abaixo do valor estimado para idade, osteopenia e osteoporose. Os testes do qui-quadrado e exato de Fischer foram empregados na comparação entre os sexos baseado em seus respec-tivos fatores associados à redução da densidade mineral óssea. Resultados: Cinquenta e dois (49%) PVHA apresentaram ao menos um diagnóstico para abaixo do valor estimado para idade, osteopenia e osteoporose, sendo 37 (57%) do sexo masculino e 15 (37%) feminino. A frequência de consumo de álcool foi maior no sexo masculino (n=20; 30,8%) compara-do ao feminino (n=5; 12,2%) (p=0,028). Conclusões: Uma alta taxa de PVHA apresentaram alterações no metabolismo ósseo, com maior frequência no sexo masculino. A frequência no consumo de álcool foi maior no sexo masculino, podendo explicar parcialmente as possíveis causas para taxa aumentada de alterações no metabolismo ósseo observada nesse grupo. Essa informação pode contribuir no desenvolvimento de estratégias para redução da frequência do diagnóstico para valores abaixo do estimado para idade, osteopenia e osteoporose, melhorando a qualidade de vida em PVHA

Metabolic bone disease in children and adolescent patients with ulcerative colitis

Abstract Objective: Metabolic bone disease concerns a broad spectrum of conditions related to reduced bone density. Metabolic bone disease has been linked to chronic inflammatory diseases, such as ulcerative colitis. This study examines the prevalence of metabolic bone disease in ulcerative colitis patients and explores possible clinical predictors. Method: The authors performed a retrospective study involving children and adolescents with confirmed ulcerative colitis between January 2013 and December 2018. Bone density was evaluated through a dual-energy X-ray absorptiometry scan of the spine and total body. Osteoporosis was defined as a bone mineral density Z-score of <−2 and osteopenia as a Z-score of between −1.0 and −2. Results: A total of 37 patients were included in this analysis, with a mean age of 13.4 ± 3.9 years and a mean duration of illness of 2.1 ± 2.4 years. Using lumbar spine Z-scores and total body Z-scores, osteoporosis and osteopenia were identified by dual-energy X-ray absorptiometry scan measurements in 11 patients (29.7%) and 15 patients (40.5%), and in ten patients (27%) and 13 patients (35%), respectively. Lumbar spine Z-scores were significantly positively associated with male gender (B = 2.02; p = 0.0001), and negatively associated with the presence of extraintestinal manifestations (B = −1.51, p = 0.009) and the use of biologics (B = −1.33, p = 0.004). However, total body Z-scores were positively associated with body mass index Z-scores (B = 0.26, p = 0.004) and duration of illness in years (B = 0.35, p = 0.003). Conclusions: Metabolic bone disease is very common in this cohort of Saudi Arabian children and adolescents with ulcerative colitis and its occurrence appears to increase in female patients who suffer from extraintestinal manifestations.

Association between fractures and traditional risk factors for osteoporosis and low bone mineral density in patients with obesity

ABSTRACT Objective: To evaluate the reasons for request of bone mineral density (BMD) evaluation and correlate the BMD results with previous fractures, risk factors for osteoporosis, and clinical characteristics in patients with obesity. Subjects and methods: Cross-sectional, retrospective, single-site study including adult patients with body mass index (BMI) ≥ 30 kg/m2 and BMD evaluation between January 2015 and May 2016 selected from a BMD database. Data on demographic characteristics, lifestyle habits, comorbidities, medications, risk factors, previous fractures, and indications for BMD evaluation were collected from the participants' medical records. Results: The study included 619 patients (89.9% women, mean BMI 34.79 ± 4.05 kg/m2). In all, 382 (61.7%), 166 (26.8%), and 71 (11.5%) patients had class 1, 2, and 3 obesity, respectively. The most frequent (29.9%) reason for BMD evaluation was for osteoporosis monitoring. In all, 69.4% of the patients had low BMD. Multivariate analysis showed that age, calcium supplementation, and previous osteoporosis or osteopenia were associated with low BMD, while age, vitamin D supplementation, use of proton pump inhibitors (PPIs), and low BMD were associated with previous fractures (p < 0.05 for all). Conclusions: Among patients with obesity identified from a tertiary hospital database, those with low bone mass and risk factors traditionally associated with fractures had an increased history of fractures. Patients with greater BMI had better bone mass and fewer fractures. These findings indicate that the association between reduced weight, risk factors for osteoporosis, and fractures remained despite the presence of obesity in our population.

Renal osteodystrophy and clinical outcomes: data from the Brazilian Registry of Bone Biopsies - REBRABO / Osteodistrofia renal e desfechos clínicos: dados do Registro Brasileiro de Biópsias Ósseas - REBRABO

ABSTRACT Introduction: Mineral and bone disorders (MBD) are major complications of chronic kidney disease (CKD)-related adverse outcomes. The Brazilian Registry of Bone Biopsy (REBRABO) is an electronic database that includes renal osteodystrophy (RO) data. We aimed to describe the epidemiological profile of RO in a sample of CKD-MBD Brazilian patients and understand its relationship with outcomes. Methods: Between August 2015 and March 2018, 260 CKD-MBD stage 3-5D patients who underwent bone biopsy were followed for 12 to 30 months. Clinical-demographic, laboratory, and histological data were analyzed. Bone fractures, hospitalizations, and death were considered the primary outcomes. Results: Osteitis fibrosa, mixed uremic osteodystrophy, adynamic bone disease, osteomalacia, osteoporosis, and aluminum (Al) accumulation were detected in 85, 43, 27, 10, 77, and 65 patients, respectively. The logistic regression showed that dialysis vintage was an independent predictor of osteoporosis (OR: 1.005; CI: 1.001-1.010; p = 0.01). The multivariate logistic regression revealed that hemodialysis treatment (OR: 11.24; CI: 1.227-100; p = 0.03), previous parathyroidectomy (OR: 4.97; CI: 1.422-17.241; p = 0.01), and female gender (OR: 2.88; CI: 1.080-7.679; p = 0.03) were independent predictors of Al accumulation; 115 patients were followed for 21 ± 5 months. There were 56 hospitalizations, 14 deaths, and 7 fractures during follow-up. The COX regression revealed that none of the variable related to the RO/turnover, mineralization and volume (TMV) classification was an independent predictor of the outcomes. Conclusion: Hospitalization or death was not influenced by the type of RO, Al accumulation, or TMV classification. An elevated prevalence of osteoporosis and Al accumulation was detected.

RESUMO Introdução: Os distúrbios minerais e ósseos (DMO) são importantes complicações da doença renal crônica (DRC) associadas à desfechos adversos. O Registro Brasileiro de Biópsia Óssea (REBRABO) é um banco de dados eletrônico que inclui dados sobre osteodistrofia renal (OR). Nosso objetivo foi descrever o perfil epidemiológico da OR em uma amostra de pacientes brasileiros com DMO-DRC e entender sua associação com os desfechos. Métodos: Entre agosto de 2015 e março de 2018, 260 pacientes com DMO-DRC estágio 3-5D submetidos à biópsia óssea foram acompanhados por 12 a 30 meses. Dados clínico-demográficos, laboratoriais e histológicos foram analisados. Fraturas ósseas, hospitalizações e óbito foram considerados como desfechos primários. Resultados: Osteíte fibrosa, osteodistrofia urêmica mista, doença óssea adinâmica, osteomalácia, osteoporose e acúmulo de alumínio (Al) foram detectados em 85, 43, 27, 10, 77 e 65 pacientes, respectivamente. A regressão logística mostrou que o tempo em diálise foi um preditor independente de osteoporose (OR: 1.005; IC: 1.001-1.010; p = 0,01). A regressão logística multivariada revelou que o tratamento hemodialítico (OR: 11,24; IC: 1,227-100; p = 0,03), paratireoidectomia prévia (OR: 4,97; IC: 1,422-17,241; p = 0,01) e sexo feminino (OR: 2,88; IC: 1,080-7,679; p = 0,03) foram preditores independentes de acúmulo de Al; 115 pacientes foram acompanhados por 21 ± 5 meses. Houve 56 internações, 14 óbitos e 7 fraturas durante o seguimento. A regressão COX revelou que nenhuma das variáveis relacionadas ao tipo de OR/remodelação-mineralização-volume (classificação TMV) foi um preditor independente de desfechos. Conclusão: A hospitalização ou óbito não foram influenciadas pelo tipo de OR, acúmulo de Al ou classificação de TMV. Foi detectada uma prevalência elevada de osteoporose e acúmulo de Al.

Association of bone mineral density with chronic obstructive pulmonary disease in postmenopausal women

Abstract Background Osteoporosis (OP) is common in patients with chronic obstructive pulmonary disease (COPD). The relationship between OP and COPD has been primarily studied in male patients, and few reports are available in postmenopausal women. Objective The purpose of this study was to investigate the association between bone mineral density (BMD) and COPD in postmenopausal women. Methods This cross-sectional study included 133 clinically stable female ex-smokers with confirmed COPD, and 31 age-matched “ex-smoker” female controls. We analyzed groups according to their airway obstruction category. BMD was measured on dual-energy X-ray absorptiometry images of the left femoral neck. Results Patients with COPD had lower T-scores and higher prevalence of osteopenia/OP than the control group. In the COPD group, the airway obstruction category was significantly associated with the T-score after adjustment for confounders. Multivariate logistic regression analysis showed COPD was an independent marker for increased risk of osteopenia/OP in postmenopausal women. Conclusions COPD and airway obstruction category were strongly related to BMD. Postmenopausal women with COPD, especially those with severe airway obstruction, had a higher prevalence rate and a higher risk of osteopenia and OP than female controls without COPD.

Prevalencia de osteoporosis y osteopenia en pacientes laboralmente activos / Prevalence of osteoporosis and osteopenia in patients occupationally active

Resumen: Antecedentes: La osteoporosis constituye un problema de salud pública a nivel mundial; afecta a más de 200 millones de personas. Se calcula que de 30 a 50% de las mujeres postmenopáusicas la padecen. De acuerdo con la International Osteoporosis Foundation (IOF), la osteoporosis es una enfermedad que se distingue por la disminución de la densidad y calidad de los huesos. El objetivo de este trabajo fue conocer la prevalencia de osteoporosis y osteopenia en trabajadores activos sanos. Métodos: Estudio retrospectivo observacional con trabajadores activos de sexo masculino y femenino en quienes se evaluó la densidad mineral ósea por absorciometría dual de rayos X (DXA) central de cadera y columna. El tiempo de evaluación fue de Junio de 2009 a Junio de 2010. Resultados: Se reclutaron 1,431 pacientes: 258 (18%) hombres y 1,173 (82%) mujeres. De acuerdo con los parámetros internacionales, los diagnósticos de las densitometrías centrales fueron, de manera global: normales, 572 sujetos (40%); con osteopenia, 601 (42%); con osteoporosis, 258 (18%). Discusión: Los resultados demuestran que las alteraciones degenerativas en pacientes con osteoporosis u osteopenia son frecuentes, incluso entre personas jóvenes.

Abstract: Background: Osteoporosis is a public health problem worldwide, affecting more than 200 million people. It is estimated that 30 to 50% of postmenopausal women suffer from it. According to the International Osteoporosis Foundation (IOF), osteoporosis is a disease characterized by a decrease in the density and quality of bones. The objective of this work was to know the prevalence of osteoporosis and osteopenia in healthy active workers. Methods: Retrospective, observational study with active male and female workers in whom bone mineral density was evaluated by dual X-ray absorptiometry (DXA) of the hip and spine. The evaluation time was from June 2009 to June 2010. Results: A total of 1,431 patients were recruited: 258 (18%) men and 1,173 (82%) women. According to the international parameters, the diagnoses of the central densitometries were, overall: 572 normal subjects (40%), 601 (42%) with osteopenia and 258 (18%) with osteoporosis. Discussion: The results show that degenerative alterations in patients with osteoporosis or osteopenia are frequent, even among young people.

Aterosclerosis subclínica y disminución de la densidad mineral ósea en mujeres de edad mediana / Subclinical atherosclerosis and decreasing in bone´s mineral density in middle-aged women

Introducción: la aterosclerosis y la osteoporosis son enfermedades con una alta incidencia. Diversos estudios epidemiológicos han mostrado una asociación entre ambos procesos. Objetivo: describir la posible asociación entre la aterosclerosis subclínica y la disminución de la densidad mineral ósea, así como la relación de estos procesos con variables de la esfera reproductiva en mujeres de edad mediana. Métodos: se realizó un estudio descriptivo transversal con 103 mujeres que asistieron a la consulta de climaterio y osteoporosis del Instituto Nacional de Endocrinología. La aterosclerosis subclínica se diagnosticó a través del ultrasonido doppler carotídeo, y la densidad mineral ósea mediante la absorciometría dual de rayos x en columna lumbar. El test chi cuadrado de independencia, el coeficiente de correlación lineal de Pearson, la prueba t de comparación de medias y Anova, permitieron realizar el análisis estadístico. Resultados: la aterosclerosis subclínica se diagnosticó en 28 de las mujeres de edad mediana (27 por ciento), y 48 pacientes (46,6 por ciento) presentaron densidad mineral ósea disminuida (osteopenia u osteoporosis). El 57,1 por ciento de las pacientes con aterosclerosis subclínica tuvieron una densidad mineral ósea disminuida. El 70,4 por ciento de las pacientes con aterosclerosis subclínica estaban en posmenopausia; el 66,7 por ciento de las que tenían osteopenia, y el 75 por ciento de las que presentaron osteoporosis, pertenecían a la etapa posmenopáusica. Conclusiones: las mujeres de edad mediana con aterosclerosis subclínica tienen mayor frecuencia de osteopenia u osteoporosis. En aquellas con aterosclerosis subclínica y densidad mineral ósea disminuida predomina la posmenopausia. El tipo de menopausia y el tiempo de vida reproductiva no se relacionan con la aterosclerosis subclínica y la disminución de la densidad mineral ósea. Se evidencia una asociación inversa entre tiempo de posmenopausia y densidad mineral ósea(AU)

Introduction: atherosclerosis and osteoporosis are diseases with a high incidence. Several epidemiological studies have shown a relation among both processes. Objective: to describe the possible relation among subclinical atherosclerosis and the decrease of bone´s mineral density, as well as the relations of these processes with reproductive variables in middle-aged women. Methods: a cross-sectional descriptive study was conducted with 103 women who attended to the Climacteric and Osteoporosis Consultation in the National Institute of Endocrinology. Subclinical atherosclerosis was diagnosed through carotid doppler ultrasound, and bone´s mineral density by performing a dual x-ray absorptiometry in the lumbar spine. The chi square test of independence, the Pearson linear correlation coefficient, the t test for comparison of averages and Anova allowed the performance of the statistical analysis. Results: subclinical atherosclerosis was diagnosed in 28 of the middle-aged women in the study (27 percent), and 48 of them (46.6 percent) had decreased bone´s mineral density (osteopenia or osteoporosis). 57.1 percent of the patients with subclinical atherosclerosis had a decreased bone´s mineral density. 70.4 percent of the patients with subclinical atherosclerosis were in the postmenopause stage; 66.7 percent of those with osteopenia, and 75 percent of those with osteoporosis were in the postmenopausal stage. Conclusions: middle-aged women with subclinical atherosclerosis have more incidence of osteopenia or osteoporosis. In those with subclinical atherosclerosis and low bone´s mineral density, postmenopause is predominant. The type of menopause and the reproductive lifetime are not related to subclinical atherosclerosis and low bone´s mineral density. An inverse association among the postmenopausal time and bone´s mineral density is evidenced(AU)

Osteoporosis: parte II: en enfermedades hepáticas y del tubo digestivo / Osteoporosis: part II: in liver and digestive tract diseases

The present review addresses liver and gastrointestinal diseases that are more frequently associated to osteopenia and osteoporosis. For each disease, we describe the prevalence and physiopathology of these bone metabolism conditions. The purpose is to create awareness of this scenario and prompt early analysis if these patients, and in other cases, to provide prophylaxis and treatment of these disorders.

En esta revisión se abordan las enfermedades hepáticas y del tubo digestivo que con mayor frecuencia se asocian a osteopenia y osteoporosis. En cada patología describimos la prevalencia y fisiopatología de estas afecciones del metabolismo óseo. El objetivo es dar a conocer esta realidad e inducir a que estos pacientes sean estudiados precozmente, en otros casos aplicar la profilaxis y tratar estos desórdenes.

Osteoarticular diseases and physical performance of Brazilians over 80 years old / Doenças osteoarticulares e desempenho físicode idosos brasileiros com idade igual ou superior a 80 anos

Abstract Objective To investigate the physical performance of Brazilian individuals older than 80 years with and without OD. Methods The sample consisted of 135 individuals (aged > 80 years) of both gender. Identification of osteopenia/osteoporosis was verified by Dual Energy X-ray Absorptiometry, and the presence of others osteoarticular diseases (OD) was obtained using a questionnaire of morbidities. Physical performance was analyzed by motor tests. Results Men presented higher proportion of osteopenia/osteoporosis compared to women (p = 0.013). The proportion of older people with arthritis/osteoarthritis for women and men was 33% and 26%, respectively, and with OD in the spine was 19% and 12%, respectively. No significant difference for physical performance, measured by each test and overall score, was observed between groups of OD. According to gender, male with OD presented lower performance in gait speed, balance and overall score (p < 0.05), while older people with osteopenia/osteoporosis are at higher risk for low physical performance (OR 2.73; CI 95% 1.31-5.66). Conclusion In conclusion it was verified in older people with age of 80 years or more, a high prevalence of OD, especially in men, and the presence of these diseases interfered negatively their physical performance.

Resumo Objetivo Investigar o desempenho físico de idosos brasileiros com idade superior a 80 anos com e sem doenças osteoarticulares (DO). Métodos Foram avaliados 135 indivíduos (idade > 80 anos) de ambos os sexos. A presença de osteoporose foi analisada por meio da técnica de Absorptiometria de Raios-X de Dupla Energia, e a prevalência de outras doenças osteoarticulares foi verificada por meio de um questionário resumido de morbidades referidas. O desempenho físico foi avaliado por testes motores. Resultados Os homens apresentaram maior proporção de osteopenia/osteoporose comparados às mulheres (p = 0,013). A proporção de idosos com artrite/artrose foi 33% e 26%, e com alguma doença na coluna foi 19% e 12%, para homens e mulheres, respectivamente. Não houve diferença significativa no desempenho físico para a amostra geral. Segundo o sexo, homens com DO apresentaram menor desempenho nos testes de caminhada, equilíbrio e escore total (p < 0,05). Idosos com osteopenia/osteoporose apresentaram maior risco para limitação física (OR 2,73; IC 95% 1,31-5,66). Conclusão Foi verificado em idosos com idade igual ou superior a 80 anos alta prevalência de doenças osteoarticulares, especialmente em homens, e sua presença interfere negativamente no desempenho físico.

Factores de riesgo para alteraciones de la densidad mineral ósea en mujeres posmenopáusicas / Risk factors for alterations in bone mineral density in postmenopausal women

OBJETIVO: Determinar los factores de riesgo para presentar alteraciones de la densidad mineral ósea (DMO) en mujeres posmenopáusicas atendidas en la consulta de Menopausia y Climaterio de la Maternidad "Dr. Armando Castillo Plaza", de Maracaibo, Venezuela. MÉTODOS: Investigación descriptiva, con diseño no experimental y transeccional, donde se evaluó la DMO y los factores de riesgo para presentar osteoporosis en 60 mujeres posmenopáusicas. RESULTADOS: La medición de la DMO resultó en promedio de 957,45 ± 149,95 y 905,00 ± 151,25 gramos, con índices T de -0,52 ± 1,66 y -0,55 ± 2,67 en columna vertebral y cuello femoral, respectivamente. Se estableció una prevalencia de osteoporosis del 10% y 5%, y de osteopenia del 43,3% y 50% en columna vertebral y fémur, respectivamente. La menopausia quirúrgica (OR [95% CI] = 4,75 [1,58-14,25]; p=0,004), el consumo excesivo de café (OR [95% CI] = 3,20 [1,40-7,10 1]; p=0,000) o gaseosas (OR [95% CI] = 2,50 [1,18-5,60]; p=0,002), tabaquismo (OR [95% CI] = 1,70 [1,102,80]; p=0,013) y la ausencia de suplementación de calcio más vitamina D (OR [95% CI] = 1,70 [1,00-2,80]; p=0,019) resultaron ser factores significativamente asociados al diagnóstico de osteoporosis u osteopenia (p<0,05). CONCLUSIÓN: Las mujeres posmenopáusicas evaluadas presentan una alta prevalencia de alteraciones en la DMO, principalmente osteopenia, y factores de riesgo para presentar Osteoporosis.

AIM: To determine risk factors for presenting alterations in bone mineral density (BMD) in postmenopausal women attending the consultation of Menopause and Menopause Maternity "Dr. Armando Castillo Plaza", Maracaibo, Venezuela. METHODS: A descriptive research with non-experimental and transactional design where was evaluated BMD and risk factors for developing osteoporosis in 60 postmenopausal women. RESULTS: The BMD measurement was averaged in 957.45 ± 149.95 and 905.00 ± 151.25 grams; with T indexes of -0.52 ± 1.66 and -0.55 ± 2.67 in spine and femoral neck, respectively. The prevalence of osteoporosis was 10% and 5%, while osteopenia was 43.3% and 50% in spine and femur, respectively. Surgical menopause (OR [95% CI] = 4.75 [1.58 to 14.25]; p=0.004); excessive coffee consumption (OR [95% CI] = 3.20 [1,40- 7.10 1]; p=0.000) or gaseous beverages (OR [95% CI] = 2.50 [1.18 to 5.60]; p=0.002); smoking (OR [95% CI] = 1.70 [1.10 to 2.80]; p=0.013) and the absence of supplemental calcium plus vitamin D (OR [95% CI] = 1.70 [1.00 to 2.80]; p=0.019) were be factors significantly associated with the diagnosis of osteoporosis or osteopenia (p<0.05). CONCLUSION: The evaluated postmenopausal women have a high prevalence of abnormal BMD, especially osteopenia, and risk factors for developing osteoporosis.

Fatores associados à osteopenia e osteoporose em mulheres submetidas à densitometria óssea / Factors associated with osteopenia and osteoporosis in women undergoing bone mineral density test

O objetivo deste estudo foi determinar a prevalência de osteopenia e osteoporose em uma população de mulheres que fizeram exames de densitometria em uma clínica especializada no sul do Brasil. Nós conduzimos um estudo transversal, incluindo 1.871 mulheres que se submeteram à densitometria óssea entre janeiro e dezembro de 2012. Foi feita uma análise de regressão logística com todas as variáveis independentes e os desfechos (osteopenia, osteoporose e risco de fraturas). A densitometria óssea foi diagnosticada como normal em 36,5% das mulheres, 49,8% com osteopenia e 13,7% com osteoporose. Estar na menopausa e ter mais de 50 anos foram fatores de risco para osteopenia e osteoporose, enquanto ter feito histerectomia e apresentar índice de massa corporal (IMC) maior do que 25 foram fatores de proteção. Para o desfecho fratura em qualquer sítio, os fatores associados foram idade acima de 50 anos e osteopenia ou osteoporose, (OR = 2,09, intervalo de confiança [IC]: 1,28-3, 95%, 40) e (OR = 2,49, 95% CI: 1,65-3, 74), respectivamente.

The aim of this study was to determine the prevalence of osteopenia and osteoporosis in a female population, that had bone mineral density (BMD) measured by dual-energy X-ray absorptiometry (DXA) in a specialized clinic in the south of Brazil. We conducted a cross-sectional study including 1871 women that performed scans between January and December 2012. We conducted a logistic regression analysis with all independent variables and outcomes (osteopenia, osteoporosis and fracture risk). According to DXA results, 36.5% of women had normal BMD, 49.8% were diagnosed with osteopenia and 13.7% with osteoporosis. Menopause and age over 50 years old were risk factors for osteopenia and osteoporosis while prior hysterectomy and BMI greater than 25 were protective factors. For the outcome of fracture at any site the risk factors were age over 50 years old, osteopenia and osteoporosis (OR = 2.09, 95% CI: 1.28–3.40) and (OR = 2.49, 95% CI: 1.65–3.74), respectively.

Alta frecuencia de hipovitaminosis D y baja densidad mineral ósea en un grupo de hombres con infección por VIH en Chile / High frequency of hypovitaminosis D and low bone mineral density in a sample of HIV-infected men in Chile

Objectives: The aim of this study was to determine the frequency of hypovitaminosis D and low bone mineral density in a sample of patients within our HIV cohort. Methods: A random sample of 16 HIV-infected patients was selected for evaluation of levels of Vitamin D and bone mineral density with dual X ray absorptiometry. Results: Within this sample of patients, 94% had low levels of vitamin D. Among them, eight had insufficient levels (10-30 ng/mL) and seven had deficient levels (less than 10 ng/mL) of this vitamin. Ten out of sixteen (63%) had an abnormal dual X ray absorptiometry (osteopenia or osteoporosis). All patients with osteopenia or osteoporosis had low levels of vitamin D, were on CDC stage A, had a CD4+ count greater than 350 cells/mm³ and HIV viral load less than 50 copies/mL. Conclusions: Low bone mineral density and hypovitaminosis D is highly frequent in this sample of HIV-infected patients in Chile.

Objetivo: El objetivo de este estudio fue determinar la frecuencia de hipovitaminosis D y de baja densidad mineral ósea en una muestra de pacientes con infección por VIH atendidos en una red de salud universitaria. Métodos: Una muestra aleatoria de 16 pacientes con infección por VIH fue seleccionada para la medición de niveles plasmáticos de vitamina D y densidad mineral ósea por densitometría. Resultados: 94% de los pacientes mostraron bajos niveles de vitamina D. De ellos, 8 presentaron niveles insuficientes (10-30 µg/ml) y 7, niveles deficientes (menor a 10 µg/ml) de esta vitamina. Diez pacientes del total (63%) presentaron una densitometría ósea anormal (osteopenia u osteoporosis). Todos los pacientes con osteopenia u osteoporosis tenían bajos niveles de vitamina D, estaban en etapa A del CDC, presentaban recuento de linfocitos CD4 mayor a 350 céls/mm3 y carga viral de VIH menor a 50 copias/ml. Conclusión: En esta muestra de pacientes con infección por VIH atendidos en una red de salud universitaria de Chile existe una alta frecuencia de hipovitaminosis D y baja densidad mineral ósea.

Prevalence of low bone mineral density in adolescents and adults with cystic fibrosis / Prevalência de densidade mineral óssea baixa em adolescentes e adultos com fibrose cística

Objective The aim of this cross-sectional study was to evaluate the prevalence of low bone mass density in cystic fibrosis patients as well as to evaluate the factors associated with bone mass in such patients. Methods Bone mass density was measured by dual-photon X-ray absorptiometry of lumbar spine (L1-L4), in patients ≤19 years old, or lumbar spine and femur (total and neck) in patients ≥20 years old. Evaluations of nutritional status, biochemical parameters, and lung function were performed. Medication data were obtained from medical records. Results Fifty-eight patients were included in the study (25 males/ 33 females), mean age 23.9 years (16-53years). The prevalence of bone mass below the expected range for age at any site was 20.7%. None of the subjects had history of fracture. Lumbar spine Z-score in cystic fibrosis patients correlated positively with body mass index (r= 0.3, p=0.001), and forced expiratory volume in the first second (% predicted) (r=0.415, p=0.022). Mean lumbar spine Z-score was higher in women (p=0.001), in patients with no pancreatic insufficiency (p=0.032), and in patients with no hospitalization in the last 3 months (p=0.02). After multivariate analysis, body mass index (p= 0.001) and sex (p=0.001) were independently associated with Z-score in lumbar spine. Conclusion Low bone mass is a frequent problem in patients with CF, being independently associated with body mass index, and male sex. .

Objetivo Determinar a prevalência de massa óssea baixa em pacientes adolescentes e adultos com fibrose cística e estudar os fatores potencialmente associados. Métodos Densidade mineral óssea foi determinada por absorciometria por dupla emissão de raios X na coluna lombar em pacientes ≤ 19 anos e na coluna e no fêmur em pacientes ≥ 20 anos. Avaliações nutricionais, bioquímicas e pulmonares foram realizadas. Dados referentes ao tratamento farmacológico foram coletados. Resultados 58 pacientes foram incluídos no estudo (25 homens/33 mulheres), média de idade de 23,9 anos (16-53). Massa óssea abaixo da esperada foi verificada em 20,7% dos pacientes. Não houve histórico de fratura. Z-score da coluna lombar associou-se positivamente com índice de massa corporal (r=0,3; p=0,022), volume expiratório forçado (% previsto) (r=0,415; p=0,001). A média do Z-score da coluna foi mais alta nas mulheres que nos homens (p=0,001), em pacientes que não possuíam insuficiência pancreática (p=0,02) e em pacientes que não haviam sido hospitalizados nos últimos três meses (p=0,032). Os fatores encontrados como preditores independentes de Z-score da coluna lombar foram sexo masculino (p=0,001) e índice de massa corporal (p=0,001). Conclusão Massa óssea baixa é frequente em pacientes com FC, estando associada independentemente com índice de massa corporal e sexo masculino. .

Prevalence and Risk Factors of Low Bone Mineral Density in Korean HIV-Infected Patients: Impact of Abacavir and Zidovudine

Low bone mineral density (BMD) is common in HIV-infected patients. We aimed to describe the prevalence of low BMD and risk factors in Korean HIV-infected patients and to assess the effects of antiretroviral therapy (ART) on BMD. We retrospectively evaluated 224 HIV infected-patients. The prevalence of osteopenia and osteoporosis were 41.5% and 12.9%. These were much higher in 53 patients aged 50 yr and older (52.8% and 34.0%). Older age, lower body mass index, and ART > 3 months were independent risk factors for low BMD. Osteoporosis was more prevalent in patients on the abacavir-based regimen for or = 1 yr; however, it was more prevalent in patients on the zidovudine-based regimen for > or = 1 yr than < 1 yr (P = 0.017). Osteoporosis in patients on the abacavir-based regimen was more common in the spine than in the femur (P = 0.01). Given such a high prevalence of low BMD, close monitoring of BMD for HIV-infected patients on ART is required. The different prevalence of osteoporosis over time and affected areas between two regimens suggest they may play roles in different mechanisms in bone loss.

Evaluation of lactose and milk intolerance, and bone mineral density in Indian patients with inflammatory bowel disease.

Background. A misconception that milk and lactose intolerance increases disease activity in inflammatory bowel disease leads to the exclusion of dietary dairy products, and patients are at an increased risk of low bone mineral density. Methods. Patients with inflammatory bowel disease (n=45, 19 men and 26 women) and healthy controls were included in this prospective open-label study. As part of exploratory dietary intervention, patients were advised to exclude milk and milk products from diet for the first 7 days and reintroduce at least 250 ml of milk for the next 21 days. Milk and lactose intolerance was assessed in patients and healthy subjects using clinical symptoms and lactose hydrogen breath test, respectively; bone mineral density was assessed in patients using a Hologic QDR 4500A DXA machine. Results. Milk and lactose intolerance was statistically comparable in patients with inflammatory bowel disease (31% and 44%, respectively) and healthy subjects (22% and 27%, respectively). Most of the patients (40%) had excluded dairy products from their diet, and 53% had dietary intake of calcium <200 mg/day. More than 60% of the patients had either osteopenia or osteoporosis. Conclusion. Milk and lactose intolerance in patients with inflammatory bowel disease was not different from that in healthy subjects. The proportion of patients with osteoporosis and osteopenia was high in this population. Hence, patients with inflammatory bowel disease in remission phase may be encouraged to add dairy products in their diet, unless otherwise indicated.

Prevalence of osteoporosis in a rural population of Muzaffarnagar district.

Objective: The aim of our study was to find out the prevalence of osteoporotic changes in relation to age and sex in the rural population of Muzaffarnagar district. Study design: A hospital-based random survey was conducted by the department of orthopaedics – outreach activities in a rural area of distt. Muzaffarnagar (U.P.). This study was conducted during a period of 10 months from October 2010 to July 2011. A total number of 510 subjects including both males (260) and females (250) in the age group 20 - 80 years were selected randomly for the study. These subjects were divided into two groups according to age and sex (20 - 49 years and above 50 years), and were screened for BMD by bone densitiometer and their T scores were calculated. Methodology: The participants underwent BMD measurements by achilles ultrasound bone densitiometer. The result of BMD were analysed on the basis of T scores and were re-presented in the form of table and graph. Result: Out of the 260 males included in the study, 170 males were in age group (20 - 49 years) and 90 males were (above 50 years). In the age group (20 - 49 years), 66 males (38.8%) had a low BMD which was in the range of osteopenia, and 8 (4.7%) had osteoporosis and 96 (56.4%) had normal BMD values. In males above 50 years of age, 60 (66.8%) had osteopenia, 10 (11.1%) had osteoporosis and 20 (22.2%) had normal BMD values. Out of the 250 females included in the study, 192 females were in the age group 20 - 49 years, and 58 females were above 50 years of age. In the age group 20 - 49 years, 96 females (50%) had low BMD which was in the range of osteopenia, 16 (8.3%) had osteoporosis, and 80 (41.6%) had normal BMD. In females above 50 years of age, 34 (58.6%) had osteopenia, 14 (24.1%) had osteoporosis, and 10 (17.2%) had normal BMD.

Bone mineral density in asthmatic patients on inhaled corticosteroids in a developing country

Prolonged use of oral corticosteroids is a risk factor for osteoporosis. However, the effect of inhaled corticosteroids [ICS] on bone mineral density [BMD] of asthmatic patients remains controversial. We aimed to determine the prevalence of osteopenia and osteoporosis in our patients with asthma receiving ICSs for more than one year compared with patients who did not have asthma and to determine the risk factors for osteopenia and osteoporosis among the asthmatic patients. This was a cross-sectional study conducted from August 2007 to July 2009. Asthmatic patients aged 18 years and older who had been on ICS for at least one year and a control group of subjects not on ICS were included. BMD was measured using DEXA [dual energy X-ray absorptiometry] scan. The WHO classification of T-scores for osteopenia and osteoporosis were used. A total of 143 subjects were recruited [69 asthmatics and 74 control subjects]. T-scores of the spine, femur, and hip of the asthmatics vs the control subjects were mean, -0.72 vs -0.57 [P=0.98]; median, -0.60 vs -0.80 [P=0.474]; and mean, 0.19 vs 0.06 [P=0.275]; respectively. T-scores of the spine, femur, and hip showed significant negative correlation with age and significant positive correlation with body mass index [BMI]. The risk factors for osteoporosis and osteopenia among asthmatic patients were older age and lower BMI, but not the cumulative dose of ICS. Asthmatic patients on ICS have no added risk of osteoporosis or osteopenia as compared with non-asthmatic subjects

Calidad del hueso en mujeres de edad mediana con hipertiroidismo subclínico farmacológico / Bone quality in middle age women presenting with pharmacological subclinical hyperthyroidism

Las hormonas tiroideas en niveles suprafisiológicos y el hipoestrinismo son factores que pueden inducir baja masa ósea. Objetivo: determinar la calidad de hueso en mujeres en etapa de climaterio que reciben tratamiento con dosis supresivas con hormonas tiroideas. Mètodos: estudio de casos y controles realizado entre marzo de 2006 y diciembre de 2008. Incluye 113 mujeres con edades entre 40-59 años que asisten a la consulta externa de los Institutos Nacionales de Endocrinología y Oncología y Radiobiología, de ellas 43 recibían tratamiento con hormonas tiroideas (grupo estudio) y 70 no (grupo control). Mediante absorciometría dual de rayos x de columna lumbar y antebrazo, se precisó la densidad mineral ósea en g/cm² y el puntaje T, a fin de identificar la presencia de osteopenia o baja masa ósea y osteoporosis. La densidad mineral ósea de columna lumbar y antebrazo fue de 0,9229 vs. 0,8856 (p>0,05) y de 0,536 vs. 0,6226 (p<0,05) para las pacientes de los grupos de estudio y control. A mayor tiempo de tratamiento con hormonas tiroideas se encontró menor contenido mineral en ambos sitios anatómicos, aunque la afectación es mayor en antebrazo (p<0,05). El riesgo para fractura osteopenia+osteoporosis) en columna lumbar fue de 44,1 por ciento y de 50 por ciento, y en antebrazo de 44,8 y 42,7 por ciento respectivamente para las mujeres de los grupos de estudio y control (p>0,05 entre grupos). El uso de hormonas tiroideas en dosis supresiva disminuyó el contenido mineral óseo del antebrazo, sin incrementar el riesgo de fractura(AU)

Thyroid hormones at supraphysiological levels and the hypothyroidism are factors that may to induce a low bone mass. Objetive: to determine the bone quality in climacteric women under treatment with suppressive doses with thyroid hormones. Methods: the case-control study conducted between March, 2006 and December, 2008 includes 113 women aged 40-59 seen in external consultation of National Institutes of Endocrinology, Oncology and Radiobiology where 43 of them were under treatment with thyroid hormones (study group) and 70 not (control group). Using dual beam absorptiometry of lumbar spine and the forearm, it was possible to determine the bone mineral density in g/cm² and the T pointing to identify the presence of osteopenia or a low bone mass and osteoporosis. The bone mineral density of lumbar spine and forearm was of 0,9229 vs. 0,8856 (p<0,05) and of 0,536 vs. 0,6226 (p<0,05) for patients of study group. With treatment using thyroid hormones there was less mineral content in both anatomical sites, although the involvement if greater in the forearm (p<0,05). Fracture risk (osteopenia+osteoporosis) in lumbar spine was of 44,1 percent and of 50 percent and in the forearm was of 44,8 and 42,7 percent, respectively for women from both groups. The use of thyroid hormones in suppressive doses decreased the bone mineral content in forearm with no increase of facture risk(AU)