RESUMO
BACKGROUND: Primary hyperparathyroidism and familial hypocalciuric hypercalcemia have similar biochemical profiles, and calcium-to-creatinine-clearance ratio helps distinguish the two. Additionally, 24-hour urine calcium >400 mg/day indicates surgery and guidelines recommend obtaining 24-hour urine calcium preoperatively. Our aim was to assess how 24-hour urine calcium altered care in the evaluation of suspected primary hyperparathyroidism. METHODS: Consecutive patients assessed for primary hyperparathyroidism from 2018 to 2020 were reviewed. Primary hyperparathyroidism was diagnosed by 2016 American Association of Endocrine Surgeons Parathyroidectomy Guidelines criteria. 24-hour urine calcium-directed change in care was defined as familial hypocalciuric hypercalcemia diagnosis, surgical deferment for additional testing, or 24-hour urine calcium >400 mg/day as the sole surgical indication. RESULTS: Of 613 patients, 565 (92%) completed 24-hour urine calcium and 477 (84%) had concurrent biochemical testing to calculate calcium-to-creatinine-clearance ratio. 24-hour urine calcium was <100 mg/day in 9% (49/565) and calcium-to-creatinine-clearance ratio was <0.01 in 17% (82/477). No patient had confirmed familial hypocalciuric hypercalcemia, although 1 had a CASR variant of undetermined significance. When calcium-to-creatinine-clearance ratio was <0.01, familial hypocalciuric hypercalcemia was excluded by 24-hour urine calcium >100 mg/day (56%), prior normal calcium (16%), renal insufficiency (11%), absence of familial hypercalcemia (3%), normal repeat 24-hour urine calcium (10%), or interfering diuretic (1%). 24-hour urine calcium-directed change in care occurred in 25 (4%), including 4 (1%) who had genetic testing. Four-gland hyperplasia was more common with calcium-to-creatinine-clearance ratio <0.01 (17% vs calcium-to-creatinine-clearance ratio ≥ 0.01, 4%, P < .001), but surgical failure rates were equivalent (P = .24). CONCLUSION: 24-hour urine calcium compliance was high, and results affected management in 4%, including productive identification of hypercalciuria as the sole surgical indication in 2 patients. When calcium-to-creatinine-clearance ratio <0.01, clinical assessment was sufficient to exclude familial hypocalciuric hypercalcemia and only 1% required genetic testing. 24-hour urine calcium should be ordered judiciously during primary hyperparathyroidism assessment.
Assuntos
Cálcio/urina , Hipercalcemia/congênito , Hiperparatireoidismo Primário/diagnóstico , Urinálise/métodos , Idoso , Creatinina/urina , Diagnóstico Diferencial , Estudos de Viabilidade , Feminino , Testes Genéticos , Humanos , Hipercalcemia/diagnóstico , Hipercalcemia/genética , Hipercalcemia/urina , Hiperparatireoidismo Primário/urina , Masculino , Pessoa de Meia-Idade , Paratireoidectomia/normas , Guias de Prática Clínica como Assunto , Estudos Retrospectivos , Índice de Gravidade de DoençaRESUMO
Objective: Show our experience performing the minimally invasive video-assisted parathyroidectomy with central approach for the treatment of patients with primary hyperparathyroidism without using intraoperative parathyroid hormone monitoring (IPTHM) based solely on the concordance of two preoperative localization studies. Material and methods: An informed consent for the accomplishment of a minimally invasive approach was performed on 27 selected patients diagnosed with primary hyperparathyroidism who underwent pre-operative cervical ultrasound and sesta-MIBI scintigraphy studies, which were consistent across them. None had a family history that might indicate a multiple endocrine neoplasia (MEN), known thyroid disease, previous neck incision, or suspicion of carcinoma. Surgery was performed through a 1.5 cm central cervical incision and the use of harmonic scalpel. IPTHM was not performed in either case. Results: In all cases the topographic location of the adenoma was confirmed. No signs of hyperparathyroidism persistence or recurrence were registered after a follow-up period of 42 months. There were no recurrent nerve lesions. The average operative time was 24.5 minutes and all patients were discharged within 24 hours. The analgesic requirement was minimal and the cosmetic result satisfactory. Conclusion: The minimally invasive unilateral exploration of the parathyroids with video-assisted magnification without IPTHM, under the guidance of two concordant localization studies is safe and feasible, with comparable results to those of standard technique as well as aesthetic advantages, less postoperative pain and reduced hospitalization.
Objetivo: Mostrar nuestra experiencia realizando la paratiroidectomía miniinvasiva video-asistida con abordaje central para el tratamiento de pacientes con hiperparatiroidismo primario, sin utilizar el monitoreo intraoperatorio de paratohormona (mipth), basados únicamente en la concordancia de dos estudios de localización preoperatorios. Material y métodos: Se seleccionaron 27 pacientes con diagnóstico de hiperparatiroidismo primario, a los cuales se les realizó previo su consentimiento para la realización de un abordaje miniinvasivo, una ecografía cervical y una centellografía sesta-MIBI como estudios de localización pre-operatorios, los cuales fueron concordantes en todo ellos. Ninguno presentó antecedentes familiares que hicieran sospechar una neoplasia endócrina múltiple (NEM), enfermedad tiroidea conocida, cervicotomía previa, ni sospecha de carcinoma. La cirugía se realizó a través de una incisión cervical central de 1,5 cm. con el empleo del bisturí harmónico. El mipth no se realizó en ninguno de los casos. Resultados: En todos los casos se confirmó la ubicación topográfica del adenoma. No registramos persistencias del hiperparatiroidismo ni recidivas después de un período de seguimiento de 42 meses. No hubo lesiones recurrenciales. El tiempo quirúrgico promedio fue de 24,5 minutos y todos los pacientes se fueron de alta antes de las 24 horas. El requerimiento analgésico fue mínimo, y el resultado estético satisfactorio. Conclusión: La exploración unilateral miniinvasiva de las paratiroides con magnificación videoasistida sin mipth, bajo la guía de dos estudios de localización concordantes, es un procedimiento seguro y factible, con resultados comparables a los de la técnica estándar y con ventajas en lo estético, menor dolor postoperatorio y hospitalización reducida.
Assuntos
Adenoma/cirurgia , Hiperparatireoidismo Primário/cirurgia , Paratireoidectomia/métodos , Neoplasias da Glândula Tireoide/cirurgia , Cirurgia Vídeoassistida/métodos , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Procedimentos Cirúrgicos Minimamente Invasivos/normas , Paratireoidectomia/normas , Período Pós-Operatório , Resultado do Tratamento , Cirurgia Vídeoassistida/normasRESUMO
OBJECTIVE: To conduct a literature review on the diagnosis and management of primary hyperparathyroidism including the classical hipercalcemic form as well as the normocalcemic variant. MATERIALS AND METHODS: This scientific statement was generated by a request from the Brazilian Medical Association (AMB) to the Brazilian Society for Endocrinology as part of its Clinical Practice Guidelines program. Articles were identified by searching in PubMed and Cochrane databases as well as abstracts presented at the Endocrine Society, Brazilian Society for Endocrinology Annual Meetings and the American Society for Bone and Mineral Research Annual Meeting during the last 5 years. Grading quality of evidence and strength of recommendation were adapted from the first report of the Oxford Centre for Evidence-based Medicine. All grades of recommendation, including "D", are based on scientific evidence. The differences between A, B, C and D, are due exclusively to the methods employed in generating evidence. CONCLUSION: We present a scientific statement on primary hyperparathyroidism providing the level of evidence and the degree of recommendation regarding causes, clinical presentation as well as surgical and medical treatment.
Assuntos
Hiperparatireoidismo/diagnóstico , Paratireoidectomia/normas , Animais , Medicina Baseada em Evidências , Humanos , Hipercalcemia/complicações , Hiperparatireoidismo/etiologia , Hiperparatireoidismo/cirurgia , Glândulas Paratireoides/patologia , Glândulas Paratireoides/cirurgia , Hormônio Paratireóideo/sangueRESUMO
OBJECTIVE: To conduct a literature review on the diagnosis and management of primary hyperparathyroidism including the classical hipercalcemic form as well as the normocalcemic variant. MATERIALS AND METHODS: This scientific statement was generated by a request from the Brazilian Medical Association (AMB) to the Brazilian Society for Endocrinology as part of its Clinical Practice Guidelines program. Articles were identified by searching in PubMed and Cochrane databases as well as abstracts presented at the Endocrine Society, Brazilian Society for Endocrinology Annual Meetings and the American Society for Bone and Mineral Research Annual Meeting during the last 5 years. Grading quality of evidence and strength of recommendation were adapted from the first report of the Oxford Centre for Evidence-based Medicine. All grades of recommendation, including "D", are based on scientific evidence. The differences between A, B, C and D, are due exclusively to the methods employed in generating evidence. CONCLUSION: We present a scientific statement on primary hyperparathyroidism providing the level of evidence and the degree of recommendation regarding causes, clinical presentation as well as surgical and medical treatment.
OBJETIVO: Conduzir uma atualização das últimas evidências científicas a respeito da apresentação, do diagnóstico e do manejo clínico e cirúrgico do hiperparatireoidismo primário clássico e normocalcêmico. MATERIAIS E MÉTODOS: Este documento foi concebido pelo Departamento de Metabolismo Ósseo da Sociedade Brasileira de Endocrinologia e Metabologia (SBEM) a partir daquele oriundo do Programa de Diretrizes da Associação Médica Brasileira (AMB) da SBEM. Realizamos uma revisão dos artigos mais relevantes obtidos nos bancos de dados PubMed e Cochrane, além de abstracts apresentados nos encontros anuais da Endocrine Society, da Sociedade Brasileira de Endocrinologia e da American Society for Bone and Mineral Research dos últimos cinco anos, e classificamos as evidências em níveis de recomendações de acordo com a força científica por tipo de estudo, adaptando o primeiro relato do "Oxford Centre for Evidence-based Medicine". Todos os graus de recomendação, incluindo-se o "D", foram basea-dos em evidência científica, sendo as diferenças entre o A, B, C e D devidas exclusivamente ao desenho empregado na geração da evidência. CONCLUSÃO: Apresentamos uma atualização científica a respeito do hiperparatireoidismo primário, classificando e graduando em níveis de recomendações as principais evidências científicas sobre as suas causas, as variadas formas de apresentação, seu diagnóstico e tratamento.