Postpartum Reclassification of Glycemic Status in Women with Gestational Diabetes Mellitus and Associated Risk Factors.

UNLABELLED: Objective The aims of the study were to evaluate, after pregnancy, the glycemic status of women with history of gestational diabetes mellitus (GDM) and to identify clinical variables associated with the development of type 2 diabetes mellitus (T2DM), impaired fasting glucose (IFG), and impaired glucose tolerance (IGT). Methods Retrospective cohort of 279 women with GDM who were reevaluated with an oral glucose tolerance test (OGTT) after pregnancy. Characteristics of the index pregnancy were analyzed as risk factors for the future development of prediabetes (IFG or IGT), and T2DM. RESULTS: T2DM was diagnosed in 34 (12.2%) patients, IFG in 58 (20.8%), and IGT in 35 (12.5%). Women with postpartum T2DM showed more frequently a family history of T2DM, higher pre-pregnancy body mass index (BMI), lower gestational age, higher fasting and 2-hour plasma glucose levels on the OGTT at the diagnosis of GDM, higher levels of hemoglobin A1c, and a more frequent insulin requirement during pregnancy. Paternal history of T2DM (odds ratio [OR] = 5.67; 95% confidence interval [95%CI] = 1.64-19.59; p = 0.006), first trimester fasting glucose value (OR = 1.07; 95%CI = 1.03-1.11; p = 0.001), and insulin treatment during pregnancy (OR = 15.92; 95%CI = 5.54-45.71; p < 0.001) were significant independent risk factors for the development of T2DM. Conclusion A high rate of abnormal glucose tolerance was found in women with previous GDM. Family history of T2DM, higher pre-pregnancy BMI, early onset of GDM, higher glucose levels, and insulin requirement during pregnancy were important risk factors for the early identification of women at high risk of developing T2DM. These findings may be useful for developing preventive strategies.

Postpartum Reclassification of Glycemic Status in Women with Gestational Diabetes Mellitus and Associated Risk Factors / Reclassificação pós-parto do estado glicêmico em mulheres com diabetes mellitus gestacional e fatores de risco associados

Abstract Objective The aims of the study were to evaluate, after pregnancy, the glycemic status of women with history of gestational diabetes mellitus (GDM) and to identify clinical variables associated with the development of type 2 diabetes mellitus (T2DM), impaired fasting glucose (IFG), and impaired glucose tolerance (IGT). Methods Retrospective cohort of 279 women with GDM who were reevaluated with an oral glucose tolerance test (OGTT) after pregnancy. Characteristics of the index pregnancy were analyzed as risk factors for the future development of prediabetes (IFG or IGT), and T2DM. Results: T2DM was diagnosed in 34 (12.2%) patients, IFG in 58 (20.8%), and IGT in 35 (12.5%). Women with postpartum T2DM showed more frequently a family history of T2DM, higher pre-pregnancy body mass index (BMI), lower gestational age, higher fasting and 2-hour plasma glucose levels on the OGTT at the diagnosis of GDM, higher levels of hemoglobin A1c, and a more frequent insulin requirement during pregnancy. Paternal history of T2DM (odds ratio [OR] =5.67; 95% confidence interval [95%CI] =1.64-19.59; p =0.006), first trimester fasting glucose value (OR =1.07; 95%CI =1.03-1.11; p =0.001), and insulin treatment during pregnancy (OR =15.92; 95%CI =5.54-45.71; p < 0.001) were significant independent risk factors for the development of T2DM. Conclusion A high rate of abnormal glucose tolerance was found in women with previous GDM. Family history of T2DM, higher pre-pregnancy BMI, early onset of GDM, higher glucose levels, and insulin requirement during pregnancy were important risk factors for the early identification of women at high risk of developing T2DM. These findings may be useful for developing preventive strategies.

Objetivo Os objetivos do estudo foram avaliar o estado glicêmico de mulheres com história de diabetes mellitus gestacional (DMG) após o parto e identificar fatores associados ao desenvolvimento de diabetes mellitus tipo 2 (DM2), glicemia de jejum alterada (GJA) e tolerância diminuída à glicose (TDG). Métodos Coorte retrospectiva de 279 mulheres com DMG reavaliadas com um teste oral de tolerância à glicose (TOTG) após a gestação. Foram analisados fatores prognósticos da gestação índice e fatores de risco para o futuro desenvolvimento de pré-diabetes (GJA ou TDG) e DM2. Resultados: Diagnosticou-se DM2 em 34 pacientes (12,2%), GJA em 58 (20,8%) e TDG em 35 (12,5%). Mulheres que evoluíram para DM2 apresentaram maior frequência de história familiar de DM2, índice de massa corporal (IMC) pré-gestacional mais elevado, menor idade gestacional, níveis superiores de glicemia de jejum e 2 horas após glicose no TOTG ao diagnóstico do DMG, hemoglobina glicada mais elevada, e uso mais frequente de insulina na gestação. História paterna de DM2 (odds ratio [OR] = 5,67; intervalo de confiança de 95% [IC95%] = 1,64-19,59; p = 0,006), glicemia de jejum do primeiro trimestre (OR = 1,07; IC95% = 1,03-1,11; p = 0,001) e o uso de insulina na gestação (OR = 15,92; IC95% = 5,54-45,71; p < 0,001) foram fatores de risco independentes para o desenvolvimento de DM2. Conclusão Houve elevada incidência de alterações no metabolismo da glicose em mulheres com DMG prévio. História familiar de DM2, IMC pré-gestacional elevado, DMG diagnosticado mais precocemente na gestação, com glicemias mais elevadas e necessidade de insulina, foram importantes fatores de risco associados à identificação precoce de mulheres com alto risco de desenvolvimento de DM2. Este conhecimento pode ser útil para o desenvolvimento de estratégias de prevenção.

Cytological criteria to predict basal phenotype of breast carcinomas.

Breast carcinoma is a heterogeneous disease. It can be classified into phenotypes based on the expression of certain proteins, with distinct differences in prognosis. The basal phenotype is associated with worse prognosis and it still remains without specific treatment. However, there is currently no international consensus on the cytological criteria that could predict this phenotype. The purpose of the study was to evaluate the cytological criteria in fine-needle aspiration biopsy and to identify their association with the basal phenotype of breast carcinoma. Fine-needle aspiration biopsy specimens and tissue sections (mastectomy specimen) from 74 cases of high-grade invasive ductal breast carcinomas were consecutively retrieved from the files of three institutions. Breast carcinomas were studied using the tissue microarray technique, being classified into phenotypes: luminal A, luminal B, HER2 overexpression, and basal. The cytological criteria for all cases were reviewed blindly by two pathologists according to five cytological criteria: cellularity, cell pattern, presence of necrosis, nucleoli, and nuclear atypia. Exact Fisher test was used to test the association between cytological criteria and the phenotypes of breast carcinoma. Necrosis was present in 64.7% of basal breast carcinomas, and 31.1% of nonbasal breast carcinomas, and that result was statistically significant, showing an odds ratio (OR) of 3.80. The basal phenotype, compared with the luminal A, showed more necrosis (OR = 6.97), present/prominent nucleoli (OR = 8.18), and cellularity more frequently (OR = 18.03). Necrosis, as well as present/prominent nucleoli and abundant cellularity are criteria more frequently associated to the basal phenotype of breast carcinoma.