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      Clinical features, diagnostic evaluation and responses to treatment in Paget’s disease of bone in a center specialized in bone metabolism Translated title: Características clínicas, evaluación diagnóstica y respuestas al tratamiento de la enfermedad de Paget ósea en un centro especializado en metabolismo óseo

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          Abstract

          Abstract The epidemiology of Paget’s disease of bone (PDB) has changed in the last years but there is no update data on its clinical presentation, diagnosis and management in Latin America. Our aim was to describe its clinical features, diagnostic evaluation and responses to treatment in a group of PDB patients treated between June 2012 and December 2019 in an institution specialized in bone diseases, in Buenos Aires, Argentina. The frequency of PDB (180/10 714) was 1.68%. Median age was 67 (range 39-97) years and 59.5% were women. Most patients were asymptomatic (58.6%) and had monostotic disease (54.3%). Favorable responses were obtained in all patients who were treated with zoledronate (n = 36), in 10 out of 14 treated with pamidronate, in 9 out of 10 who received intravenous ibandronate and in 12 out of 13 who received oral bisphosphonates. The response rates were not significantly different when we compared monostotic vs. polyostotic disease. Among the biochemical parameters, mean values of bone specific and total alkaline phosphatase, and C-terminal cross-linked telopeptide of type I collagen decreased significantly after treatment with bisphosphonates. It seems that our results reflect the change in PDB epidemiology towards a more indolent disease. In the future, this would probably allow physicians to use lower doses of bisphosphonates than the ones historically recommended for these patients.

          Translated abstract

          Resumen La epidemiología de la en fermedad de Paget ósea (EPO) ha cambiado en los últimos años. Son necesarios datos actualizados sobre su forma de presentación clínica, diagnóstico y tratamiento en nuestra región. Nuestro objetivo fue describir las características clínicas, evaluación diagnóstica y respuestas al tratamiento de un grupo de pacientes con EPO en un centro especializado en salud ósea de Buenos Aires, Argentina. Se evaluaron todos los pacientes que fueron atendidos en nuestra institución por enfermedades óseas entre junio de 2012 y diciembre de 2019. La frecuencia de EPO (180/10 714) fue de 1.68%. La mediana de edad fue de 67 (rango 39-97) años. El 59.5% eran mujeres. La mayoría se encontraba asintomático (58.6%) y tenían enfermedad monostótica (54.3%). Se objetivaron respuestas favorables en todos los que recibieron zoledronato (n = 36), en 10 de 14 pacientes que recibieron pamidronato, en 9 de 10 que utilizaron ibandronato endovenoso y en 12 de 13 con bifosfonatos orales. Los porcentajes de respuesta no variaron significativamente entre pacientes con formas monostóticas y poliostóticas. Entre los parámetros bioquímicos, los valores de fosfatasa alcalina total y ósea y de β cross-laps disminuyeron significativamente luego del tratamiento con bifosfonatos. Nuestros resultados reflejarían un cambio en la epidemiología de la EPO hacia una forma de presentación más indolente. Esto permitiría probablemente el uso de dosis más bajas de bifosfonatos que las históricamente recomendadas para estos pacientes.

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          Most cited references29

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          Diagnosis and Management of Paget's Disease of Bone in Adults: A Clinical Guideline

          ABSTRACT An evidence‐based clinical guideline for the diagnosis and management of Paget's disease of bone (PDB) was developed using GRADE methodology, by a Guideline Development Group (GDG) led by the Paget's Association (UK). A systematic review of diagnostic tests and pharmacological and nonpharmacological treatment options was conducted that sought to address several key questions of clinical relevance. Twelve recommendations and five conditional recommendations were made, but there was insufficient evidence to address eight of the questions posed. The following recommendations were identified as the most important: 1) Radionuclide bone scans, in addition to targeted radiographs, are recommended as a means of fully and accurately defining the extent of metabolically active disease in patients with PDB. 2) Serum total alkaline phosphatase (ALP) is recommended as a first‐line biochemical screening test in combination with liver function tests in screening for the presence of metabolically active PDB. 3) Bisphosphonates are recommended for the treatment of bone pain associated with PDB. Zoledronic acid is recommended as the bisphosphonate most likely to give a favorable pain response. 4) Treatment aimed at improving symptoms is recommended over a treat‐to‐target strategy aimed at normalizing total ALP in PDB. 5) Total hip or knee replacements are recommended for patients with PDB who develop osteoarthritis in whom medical treatment is inadequate. There is insufficient information to recommend one type of surgical approach over another. The guideline was endorsed by the European Calcified Tissues Society, the International Osteoporosis Foundation, the American Society of Bone and Mineral Research, the Bone Research Society (UK), and the British Geriatric Society. The GDG noted that there had been a lack of research on patient‐focused clinical outcomes in PDB and identified several areas where further research was needed. © 2019 The Authors. Journal of Bone and Mineral Research Published by Wiley Periodicals Inc.
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            Incidence and natural history of Paget's disease of bone in England and Wales.

            This study used a large, primary care, record-linkage resource (the General Practice Research Database [GPRD]) to evaluate the incidence, clinical presentation, and natural history of Paget's disease of bone in England and Wales. Between 1988 and 1999, we identified 2465 patients with the recorded diagnosis of Paget's disease of bone, within the five million subjects > or = 18 years old who were registered in the GPRD. The validity of diagnostic recording was assessed by questionnaire to individual general practitioners (GPs) in 150 patients; the diagnosis was confirmed in 93.8% of responders. The mean age of patients with Paget's disease was 75 years and 51% were men. The prevalence of the disorder was 0.3% among men and women aged > or = 55 years; incidence rates for clinically diagnosed Paget's disease rose steeply with age (men, 5 per 10,000 person-years; women, 3 per 10,000 person-years at the age of 75 years). Over the 11-year period of the study, the age- and sex-adjusted incidence rate of clinically diagnosed Paget's disease declined from 1.1 per 10,000 person-years to 0.7 per 10,000 person-years. Each patient with Paget's disease was matched to three controls matched by age, gender, and general practice. Cases had a greater risk of back pain (relative risk [RR], 2.1; 95% CI, 1.9-2.3), osteoarthritis (OA; RR, 1.7; 95% CI, 1.5-1.9), hip arthroplasty (RR, 3.1; 95% CI, 2.4-4.1), knee arthroplasty (RR, 1.6; 95% CI, 1.0-2.6), fracture (RR, 1.2; 95% CI, 1.0-1.5), and hearing loss (RR, 1.6; 95% CI, 1.3-1.9). Seven patients with Paget's disease developed a malignant bone neoplasm (0.3%). Using life table methodology, the estimated number of people who died within 5 years of follow-up was 32.7% among the patients with Paget's disease and 28.0% among the control patients.
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              Paget's disease of bone: an endocrine society clinical practice guideline.

              The aim of this guideline was to formulate practice guidelines for the diagnosis and treatment of Paget's disease of the bone.
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                Author and article information

                Journal
                medba
                Medicina (Buenos Aires)
                Medicina (B. Aires)
                Fundación Revista Medicina (Ciudad Autónoma de Buenos Aires, , Argentina )
                0025-7680
                1669-9106
                August 2022
                : 82
                : 3
                : 408-414
                Affiliations
                [1] orgnameInstituto de Investigaciones Metabólicas (IDIM)
                [2] orgnameUniversidad del Salvador orgdiv1Maestría en Osteología Argentina
                Article
                S0025-76802022000500408 S0025-7680(22)08200300408
                5a5329c0-c915-4e09-a33e-69d6ee4f2907

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 22 December 2021
                : 21 September 2021
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 29, Pages: 7
                Product

                SciELO Argentina

                Categories
                Original articles

                Paget’s disease of bone,Bisphosphonates,Epidemiology,Clinical features,Diagnosis,Enfermedad de Paget ósea,Bifosfonatos,Características clínicas,Diagnóstico

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