Protocolo de classificação e diagnóstico do diabetes mellitus

Abstract

Diabetes mellitus (DM) is characterized as a metabolic disorder of multiple etiology that results in persistent hyperglycemia due to failure in insulin action and/or secretion. According to the World Health Organization (WHO), the American Diabetes Association (ADA) and the Brazilian Society of Diabetes (SBD), DM is classified according to etiology into four clinical classes: type 1 DM (T1DM), type 2 DM (T2DM), other specific types of DM (caused by different etiologies) and gestational DM. To diagnose DM and its types, it is necessary to associate clinical data (clinical history, personal and family history, signs, symptoms, physical examination) with the results of laboratory tests: fasting glucose, glycated hemoglobin A1C, oral test glucose tolerance test (OGTT) and/or specific antibody dosage (anti insulin, anti-GAD, antiislet, etc.), among others. The present work aimed to produce a protocol for clinicians and specialists on the classification and diagnosis of DM. Using a rapid review methodology, recent and relevant publications on the topic were selected in two databases: National Center for Biotechnology Information (NCBI/PUBMED) and Scientific Electronic Library Online (SCIELO). The selection was performed based on the evaluation of pre-determined inclusion and exclusion criteria, by a panel of two researchers with expertise in the area. The clinical protocol was elaborated focusing on the classification and diagnosis of DM, presented through didactic texts, easy to be understanding and in a language suitable for health professionals. Visual elements such as figures, charts and flowcharts were added to the material to highlight the most important information about the main types of DM, including the most specific and/or rare (LADA, MODY, neonatal diabetes mellitus, etc.), to assist the health professional to perform the early diagnosis of DM and identify the probable etiology of the disease. The reduction in the delay in recognizing the disease and causes may imply changes in the therapy and prognosis of the condition, in addition to directing family counseling for affected patients.