ABSTRACT
BACKGROUND: Vascular calcification progression has been associated with the loss of trabecular bone in chronic kidney disease (CKD) patients. There are few data evaluating the relationship between cortical bone loss and vascular calcification in this population. The aim of this study was to prospectively evaluate the association between changes in cortical bone density and coronary artery calcification (CAC) progression in non-dialyzed CKD patients. METHODS: Changes of cortical and trabecular bone, and changes of calcium score, were analyzed using vertebral tomographic images from a prospective study. Automatic delineation of the cortical bone layer was performed by Image J software, and trabecular bone was determined by selecting a region of interest using Vitrea 2® software. Cortical and trabecular bone density (BD) were expressed in Hounsfield Units (HU), and coronary artery calcium score in Agatston Units (AU). RESULTS: Seventy asymptomatic patients [57.8 ± 10.2 years, 63% males, 20% diabetic, estimated glomerular filtration rate (eGFR) = 37.3 (24.8-51.3) mL/min/1.73m2] were followed for 24 months. The mean cortical and trabecular BD did not change over time. While 49 patients lost either bone, 29 (41%) patients lost cortical [- 4.4%/year (ranging from - 7.15 to - 0.5)] and 39 (56%) lost trabecular bone [- 3.15%/year (- 13.7 to - 0.25)]. There was no association between cortical and trabecular BD changes (p = 0.12). CAC was observed in 33 (46%) patients at baseline, and 30 (91%) of them showed CAC progression. While an inverse correlation between trabecular bone and calcium score changes was observed (p = 0.001), there was no correlation between cortical bone and calcium score changes (p = 0.34). CONCLUSION: CKD patients experience either cortical or trabecular bone loss over time, but these changes do not take place simultaneously in all patients. Cortical, unlike trabecular bone loss, is not associated with vascular calcification progression in these patients.
Subject(s)
Bone Demineralization, Pathologic , Cancellous Bone , Renal Insufficiency, Chronic/complications , Vascular Calcification/diagnosis , Asymptomatic Diseases , Bone Demineralization, Pathologic/diagnosis , Bone Demineralization, Pathologic/etiology , Bone Density , Brazil/epidemiology , Cancellous Bone/blood supply , Cancellous Bone/diagnostic imaging , Cancellous Bone/pathology , Disease Progression , Female , Glomerular Filtration Rate , Humans , Male , Middle Aged , Prospective Studies , Renal Insufficiency, Chronic/diagnosis , Renal Insufficiency, Chronic/epidemiology , Renal Insufficiency, Chronic/metabolism , Tomography, X-Ray Computed/methods , Vascular Calcification/epidemiologyABSTRACT
BACKGROUND: The Brazilian Health System is organized on a regional and hierarchical form with three levels of complexity of health care. The Primary Care represents the first element of a continuing health care process, complemented by specialized actions. However, the centrality of the specialized care is still a problem in Brazil, especially in the private sector. Studies on the distribution of professionals in the health system allowing the formulation of appropriate policies are needed. OBJECTIVES: To investigate the distribution of physical therapists in the levels of complexity of health care and between public and private establishments, according to data from the National Register of Health Service Providers (NRHSP). METHOD: A descriptive cross-sectional study was performed considering NRHSP-national bank data collected in March 2010 and demographic census 2010 data. Data were analyzed through descriptive statistics techniques. RESULTS: We identified 53,181 registries of physical therapists, 60% linked to the private sector. Only 13% of all entries were linked to primary care. The predominance in specialized care occurred in the public sector (65%) and private sector (100%). The specialized establishments of private sector linked to the southeast region (16,043) were the main sites of physical therapists. Only the public sector in the south had a majority in the Primary Care. When considering the sizes of the cities, there is focus on specialist care in bigger cities. CONCLUSIONS: This study identified the concentration of physical therapists in the specialized care, mostly in metropolis and big cities and in the private sector, with restricted to participation in the primary care.
Subject(s)
Delivery of Health Care , Health Facilities , Physical Therapists/statistics & numerical data , Physical Therapy Specialty , Brazil , Cross-Sectional Studies , Humans , Private Sector , Public Sector , WorkforceABSTRACT
BACKGROUND: The Brazilian Health System is organized on a regional and hierarchical form with three levels of complexity of health care. The Primary Care represents the first element of a continuing health care process, complemented by specialized actions. However, the centrality of the specialized care is still a problem in Brazil, especially in the private sector. Studies on the distribution of professionals in the health system allowing the formulation of appropriate policies are needed. OBJECTIVES: To investigate the distribution of physical therapists in the levels of complexity of health care and between public and private establishments, according to data from the National Register of Health Service Providers (NRHSP). METHOD: A descriptive cross-sectional study was performed considering NRHSP-national bank data collected in March 2010 and demographic census 2010 data. Data were analyzed through descriptive statistics techniques. RESULTS: We identified 53,181 registries of physical therapists, 60% linked to the private sector. Only 13% of all entries were linked to primary care. The predominance in specialized care occurred in the public sector (65%) and private sector (100%). The specialized establishments of private sector linked to the southeast region (16,043) were the main sites of physical therapists. Only the public sector in the south had a majority in the Primary Care. When considering the sizes of the cities, there is focus on specialist care in bigger cities. CONCLUSIONS: This study identified the concentration of physical therapists in the specialized care, mostly in metropolis and big cities and in the private sector, with restricted to participation in the primary care.
CONTEXTUALIZAÇÃO: O Sistema Único de Saúde (SUS) é organizado de forma regionalizada e hierarquizada, apresentando três níveis de complexidade de atenção à saúde. A atenção primária à saúde (APS) representa o primeiro elemento de um continuado processo de assistência à saúde, sendo complementada pelas ações especializadas. No entanto, a centralidade na atenção especializada ainda é uma realidade no país, principalmente no setor privado. Estudos sobre a distribuição das profissões no sistema de saúde permitem a formulação de políticas adequadas que fortaleçam a APS. OBJETIVOS: Investigar a distribuição dos fisioterapeutas nos níveis de complexidade de atenção à saúde e entre os estabelecimentos públicos e privados de acordo com dados do Cadastro Nacional de Estabelecimentos de Saúde (CNES). MÉTODO: Foi realizado um estudo transversal descritivo. Os dados foram coletados no banco nacional do CNES, em março de 2010, sendo analisados por técnicas estatísticas descritivas. RESULTADOS: Foram identificados 53.181 cadastros de fisioterapeutas, com 60% vinculados ao setor privado. Apenas 13% de todos os cadastros estiveram vinculados à APS. A predominância na atenção especializada ocorreu no setor público (65%) e privado (aproximadamente 100%), sendo o maior número de profissionais vinculados a estabelecimentos privados especializados da região Sudeste (16.043). Apenas o setor público da região Sul apresentou maioria na APS. Quando considerados os portes dos municípios, verifica-se concentração na atenção especializada em municípios de maior porte. CONCLUSÃO: Este estudo identificou concentração de fisioterapeutas na atenção especializada, majoritariamente em municípios de maior porte populacional e no setor privado, sendo ainda restrita a participação na APS.
