[Diabetic ketoacidosis secondary to immunotherapy]. / Cetoacidosis diabética secundaria a inmunoterapia.

Immune checkpoint inhibitors (ICIs) are monoclonal antibodies that are increasingly used in cancer treatments. As experience in the use of immunotherapy increases, more is known about its safety profile and immune-mediated adverse effects. Among them is diabetic ketoacidosis (DKA), a rare but serious fatal complication of treatment. In this paper we describe the cases of three patients who presented with episodes of DKA during treatment with ICIs, two of which manifested with fulminant forms, leading to an acute course with initially normal glycosylated hemoglobin values. In addition, we conducted a review of the literature on DKA associated with ICIs in order to highlight the importance of noticing these potentially fatal complications and promptly establishing appropriate therapy.

Los inhibidores de puntos de control inmune (ICIs) son anticuerpos monoclonales cada vez más utilizados en tratamientos oncológicos. A medida que aumenta la experiencia en el uso de inmunoterapia, se conoce cada vez más su perfil de seguridad y los efectos adversos inmunomediados. Entre ellos se encuentra la cetoacidosis diabética (CAD), complicación infrecuente, grave y potencialmente mortal. En este trabajo describimos los casos de tres pacientes que se presentaron con episodios de CAD durante el tratamiento con ICIs, dos de los cuales manifestaron con formas fulminantes, llevando un curso agudo con valores de hemoglobina glicosilada inicialmente normales. Asimismo, realizamos una revisión de la literatura sobre la CAD asociada a ICIs a fines de resaltar la importancia de advertir estas complicaciones potencialmente fatales e instaurar rápidamente la terapéutica apropiada.

Risk factors associated with the need for insulin in patients with gestational diabetes in a reference hospital in Buenos Aires, Argentina: retrospective cohort study / Factores de riesgo asociados al requerimiento de insulina en pacientes con diabetes gestacional en un hospital de referencia en Buenos Aires, Argentina: estudio de cohorte retrospectiva

Objectives: To describe the clinical and sociodemographic characteristics of pregnant women diagnosed with gestational diabetes mellitus (GDM) and to assess factors potentially associated with out-of-target glycemic control and the need for insulin. Materials and methods: Retrospective descriptive cohort. Women with GDM delivered at a reference hospital between January 2018 and September 2020 were included; women delivered in a different institution were excluded. Measured variables were age, body mass index (BMI) at the start of pregnancy, family history of diabetes, gestational age at the time of diagnosis, blood glucose levels at baseline and following oral glucose tolerance test, fructosamine, Hba1c, and insulin therapy use. A descriptive exploratory analysis of factors associated with poor glycemic control was conducted using uni and multivariate analyses. Results: Of the patients with GDM, 44 % were out of target for blood glucose with lifestyle and dietary measures. The exploratory analyses revealed a potential increase in the risk of poor glycemic control associated with initial blood glucose level on OGTT (raw OR: 3.57; 95 % CI: 2.1 - 6.1), BMI > 25 kg/m2 (OR: 1.97, 95 % CI: 1.15 - 3.34), and more advanced gestational age at the time of diagnosis as a protective factor against the need for insulin therapy (OR: 0.45, 95 % CI: 0.27- 0.75). However, these associations were not confirmed in the multivariate analysis. Conclusions: A baseline blood glucose value greater than 95 mg/dl and BMI of more than 25 kg/m2 could be associated with poor glycemic control in women with GDM. Studies that assess these variables and control for confounding factors are needed in order to identify the factors associated with insulin requirement in pregnant women.

Objetivos: describir las características clínicas y sociodemográficas de las gestantes con diagnóstico de diabetes mellitus gestacional (DMG) y evaluar posibles factores asociados al control glucémico fuera de objetivo y requerimiento de insulina. Materiales y métodos: cohorte retrospectiva descriptiva. Se incluyeron mujeres con DMG atendidas en un hospital de referencia entre enero de 2018 y septiembre de 2020; se excluyeron mujeres con parto realizado en otra Institución. Las variables medidas fueron edad, índice de masa corporal al inicio del embarazo, antecedentes familiares de diabetes, edad gestacional al diagnóstico, glucemia basal y glucemia post prueba de tolerancia oral a la glucosa, fructosamina, Hba1c, y uso de insulinoterapia. Se realizó un análisis descriptivo y exploratorio de los factores asociados al mal control glucémico por medio del análisis uni y multivariado. Resultados: el 44 % de las pacientes con DMG presentaron control glucémico fuera de objetivo con medidas higiénico-dietéticas. El análisis exploratorio mostró que podría haber un incremento en el riesgo del mal control glucémico asociado al valor inicial de la glucemia durante la PTOG (OR crudo: 3,57, IC 95 %: 2,1 - 6,1), el IMC > 25 kg/m2 (OR: 1,97, IC 95 %: 1,15 - 3,34) y la mayor edad gestacional al momento del diagnóstico como factor protector del requerimiento de la insulinoterapia (OR: 0,45, IC 95 %: 0,27 - 0,75). Sin embargo, estas asociaciones no se confirmó en el análisis multivariado. Conclusiones: el valor de la glucemia basal mayor a 95 mg/dl, el IMC mayor a 25 kg/m2 podrían estar asociadas al mal control glucémico en las mujeres con DMG. Se necesitan estudios que evalúen estas variables con control de los factores de confusión para determinar los factores que indican el uso de insulina en mujeres gestantes.

Factores de riesgo asociados al requerimiento de insulina en pacientes con diabetes gestacional en un hospital de referencia en Buenos Aires, Argentina: estudio de cohorte retrospectiva / Risk factors associated with the need for insulin in patients with gestational diabetes in a reference hospital in Buenos Aires, Argentina: retrospective cohort study

Objetivos: Describir las características clínicas y sociodemográficas de las gestantes con diagnóstico de diabetes mellitus gestacional (DMG) y evaluar posibles factores asociados al control glucémico fuera de objetivo y requerimiento de insulina. Materiales y métodos: Cohorte retrospectiva descriptiva. Se incluyeron mujeres con DMG atendidas en un hospital de referencia entre enero de 2018 y septiembre de 2020; se excluyeron mujeres con parto realizado en otra Institución. Las variables medidas fueron edad, índice de masa corporal al inicio del embarazo, antecedentes familiares de diabetes, edad gestacional al diagnóstico, glucemia basal y glucemia post prueba de tolerancia oral a la glucosa, fructosamina, prueba de hemoglobina glicosilada (HbAlc), y uso de insulinoterapia. Se realizó un análisis descriptivo y exploratorio de los factores asociados al mal control glucémico por medio del análisis uni y multivariado. Resultados: El 44 % de las pacientes con DMG presentaron control glucémico fuera de objetivo con medidas higiénico-dietéticas. El análisis exploratorio mostró que podría haber un incremento en el riesgo del mal control glucémico asociado al valor inicial de la glucemia durante la PTOG (OR crudo: 3,57, IC 95 %: 2,1 - 6,1), el IMC > 25 kg/m2 (OR crudo: 1,97, IC 95 %: 1,15 - 3,34) y la mayor edad gestacional al momento del diagnóstico como factor protector del requerimiento de la insulinoterapia (OR crudo: 0,45, IC 95 %: 0,27 - 0,75). Sin embargo, estas asociaciones no se confirmaron en el análisis multivariado. Conclusiones: El valor de la glucemia basal mayor a 95 mg/dl, el IMC mayor a 25 kg/m2 podrían estar asociadas al mal control glucémico en las mujeres con DMG. Se necesitan estudios que evalúen estas variables con control de los factores de confusión para determinar los factores que indican el uso de insulina en mujeres gestantes.

Objectives: To describe the clinical and sociodemographic characteristics of pregnant women diagnosed with gestational diabetes mellitus (GDM) and to assess factors potentially associated with out-of-target glycemic control and the need for insulin. Material and methods: Retrospective descriptive cohort. Women with GDM delivered at a reference hospital between January 2018 and September 2020 were included; women delivered in a different institution were excluded. Measured variables were age, body mass index (BMI) at the start of pregnancy, family history of diabetes, gestational age at the time of diagnosis, blood glucose levels at baseline and following oral glucose tolerance test, fructosamine, Hemoglobin A1c (HBA1c), and insulin therapy use. A descriptive analysis was done. An exploratory analysis of factors associated with poor glycemic control was also conducted using uni and multivariate analyses. Results: Of the patients with GDM, 44 % were out of target for blood glucose with lifestyle and dietary measures. The exploratory analyses revealed a potential increase in the risk of poor glycemic control associated with initial blood glucose level on OGTT (crude OR: 3.57; 95 % CI:2.1-6.1), BMI > 25 kg/m2 (crude OR:1.97,95 % CI: 1.15 - 3.34), and more advanced gestational age at the time of diagnosis as a protective factor against the need for insulin therapy (crude OR: 0.45, 95 % CI: 0.27- 0.75). However, these associations were not confirmed in the multivariate analysis. Conclusions: A baseline blood glucose value greater than 95 mg/dl and BMI of more than 25 kg/m2 could be associated with poor glycemic control in women with GDM. Studies that assess these variables and control for confounding factors are needed in order to identify the factors associated with insulin requirement in pregnant women.

Infección grave de piel y partes blandas por Fusarium oxysporum asociado a la administración subcutánea de insulina / Severe skin and soft tissue infection due to Fusarium oxysporum associated with subcutaneous insulin administration

Resumen La diabetes mellitus (DM) es una enfermedad crónica muy prevalente. Dentro de los tratamientos para la DM se encuentra la insulina que es el agente antidiabético más potente, sin embargo, una proporción significativa de pacientes no logra alcanzar el objetivo de hemoglobina glicosilada (HbA1c). Los errores en la aplicación de insulina son un factor importante y corregible en muchos casos. Se presenta el caso de una paciente con DM, antecedentes de neuropatía diabética, enfermedad renal crónica estadio V en hemodiálisis, hipertensión arterial, estenosis aórtica con recambio por válvula protésica, y anticoagulada, con escasa adherencia a recomendaciones higiénico dietéticas. Debido a la mala técnica de aplicación de insulina y falta de higiene, desarrolló varias infecciones polimicrobianas de piel y partes blandas, con evolución tórpida de las úlceras y mala respuesta al tratamiento indicado. Durante su internación, de una úlcera se aisló Fusarium oxysporum. Es importante jerarquizar la relevancia de la educación diabetológica en pacientes insulinizados y el rol de los educadores en diabetes en el cuidado de los mismos. Por otro lado, destacar la importancia de la toma de cultivos mediante punción de partes blandas ante la aparición de signos locales de infección.

Abstract Diabetes mellitus (DM) is a very prevalent chronic disease. Among the treatments for DM, insulin is the most potent antidiabetic agent. However a significant proportion of patients fail to achieve Errors in the application of insulin are an important and correctable factor in many cases. We present the case of a patient with DM who, due to poor insulin application technique and hygiene, develops a skin and soft tissue infection with subsequent appearance of Fusarium oxysporum. It is important to emphasize the relevance of diabetes education in insulin ized patients and the role of diabetes educators in their care. On the other hand, it is important to emphasize the importance of taking cultures by soft tissue puncture in case of local signs of infection.

[Severe skin and soft tissue infection due to Fusarium oxysporum associated with subcutaneous insulin administration]. / Infección grave de piel y partes blandas por Fusarium oxysporum asociado a la administración subcutánea de insulina.

Diabetes mellitus (DM) is a very prevalent chronic disease. Among the treatments for DM, insulin is the most potent antidiabetic agent. However a significant proportion of patients fail to achieve Errors in the application of insulin are an important and correctable factor in many cases. We present the case of a patient with DM who, due to poor insulin application technique and hygiene, develops a skin and soft tissue infection with subsequent appearance of Fusarium oxysporum. It is important to emphasize the relevance of diabetes education in insulinized patients and the role of diabetes educators in their care. On the other hand, it is important to emphasize the importance of taking cultures by soft tissue puncture in case of local signs of infection.

La diabetes mellitus (DM) es una enfermedad crónica muy prevalente. Dentro de los tratamientos para la DM se encuentra la insulina que es el agente antidiabético más potente, sin embargo, una proporción significativa de pacientes no logra alcanzar el objetivo de hemoglobina glicosilada (HbA1c). Los errores en la aplicación de insulina son un factor importante y corregible en muchos casos. Se presenta el caso de una paciente con DM, antecedentes de neuropatía diabética, enfermedad renal crónica estadio V en hemodiálisis, hipertensión arterial, estenosis aórtica con recambio por válvula protésica, y anticoagulada, con escasa adherencia a recomendaciones higiénico dietéticas. Debido a la mala técnica de aplicación de insulina y falta de higiene, desarrolló varias infecciones polimicrobianas de piel y partes blandas, con evolución tórpida de las úlceras y mala respuesta al tratamiento indicado. Durante su internación, de una úlcera se aisló Fusarium oxysporum. Es importante jerarquizar la relevancia de la educación diabetológica en pacientes insulinizados y el rol de los educadores en diabetes en el cuidado de los mismos. Por otro lado, destacar la importancia de la toma de cultivos mediante punción de partes blandas ante la aparición de signos locales de infección.

The Cervical Fat Tissue Volume is a Predictor for Moderate to Severe OSA.

Objective Obstructive sleep apnea (OSA) is a disorder characterized by recurrent pharyngeal obstruction during sleep, in which upper airway anatomy plays a key role in its pathogenesis. The aim of this study was to describe whether the quantification of cervical fat tissue volume (CFTV) obtained by Computed Tomography (CT)cephalometry is related to the severity of OSA. Methods Retrospective study between 2018 and 2020 in those patients > 18 years old, with diagnosis of OSA who performed a volumetric cephalometric imaging. Three-dimensional reconstruction of the images was performed and CFTV was measured. Results 91 patients were included in this study of which: without OSA (n: 7), mild (n: 19), moderate (n: 39) and severe OSA (n: 26). We observed a progressive increase of CFTV related to OSA severity has been observed (without OSA: 58.9 ml (47.9-87.5), mild: 59.1ml (48.4-78.3), moderate: 71 ml (42.6-127.1) and severe OSA 103.6 ml (81-153); p < 0.01); nevertheless, no differences were found in the airway volume and neck area. It was showed a significant correlation between CFTV and OSA indicators: AHI, ODI and T90 (Sp r: 0.48; 0.38 and 0.36; p < 0.01 respectively). CFTV cut-off value to discriminate AHI >15 ev/h with best sensitivity-specificity relationship was 64.1 ml with an area under the curve of 0.6 ± 0.06. Multivariate analysis showed that CFTV is a predictor for moderate to severe OSA (OR:3.05, IC95%: 1.14-8.17). Conclusion Cervical fat quantification by CT cephalometry correlates with OSA severity in adults. Fat volume > 64.1 ml increased more than three times the risk of OSA moderate to severe.

Relación entre el índice de masa corporal y el nivel de los ácidos grasos circulantes maternos como predictores de la presencia de la macrosomía fetal / Relationship between body mass index and maternal circulating fatty acid levels as predictors of the presence of fetal macrosomia

Introducción: los recién nacidos con peso elevado al nacer presentan mayor riesgo de complicaciones en el parto y problemas de salud a largo plazo. Un factor poco explorado durante la gestación es el nivel de los ácidos grasos circulantes. Materiales y métodos: estudio prospectivo donde se estudiaron mujeres durante el embarazo hasta el parto. Se analizaron las variables antropométricas y la medición de ácidos grasos libres entre las semanas 24-28 de gestación. Resultados: se incluyeron 27 pacientes, de las cuales cuatro (13,8%) dieron a luz a recién nacidos macrosómicos. Las pacientes se agruparon según el índice de masa corporal (IMC) preembarazo en normopeso y sobrepeso u obesidad. Los bebés macrosómicos correspondieron al grupo de madres con sobrepeso y obesidad que, además, tuvieron un incremento significativo de los niveles de ácidos grasos libres (2067 uM, ICC: 947,5-1590 vs 1212 uM, ICC: 13367-2247; p<0,05) en el grupo obesidad y sobrepeso. Los valores de glucemia basal y posteriores a la prueba de tolerancia oral a la glucosa no mostraron diferencias. El análisis multivariado reveló que tener obesidad o sobrepeso al inicio del embarazo resulta en un odds ratio (OR) de ácidos grasos libres de 1,0023 (IC9 5%:1,0000-1,0046), mientras que la prueba de tolerancia oral a la glucosa presentó un OR: 1,0186 (IC 95%: 0,9645-1,0756). Conclusiones: los resultados muestran el rol del IMC pregestacional sobre el riesgo de tener hijos macrosómicos, lo que confirma la necesidad de mejorar el estado nutricional de las mujeres antes y durante el embarazo.

Introduction: neonates with high birth weight are at increased risk of birth complications and long term health problems. An unexplored factor during gestation is the level of circulating fatty acids. Materials and methods: prospective study where women were studied during pregnancy until delivery. Anthropometric variables and free fatty acid measurements were analyzed between 24-28 weeks of gestation. Results: we included 27 patients, of whom 4 (13.8%) gave birth to macrosomic newborns. Patients were grouped according to pre-pregnancy mass index (BMI) into normal weight and overweight or obese. Macrosomic neonates corresponded to the group of overweight and obese mothers, who also presented a significant increase in free fatty acid levels (2067 uM, ICC: 947,5-1590 vs 1212 uM, ICC: 13367-2247; p<0.05) was found in the obese and overweight group. Basal and post oral glucose tolerance test showed no differences, Multivariate analysis showed that being obese or overweight at the beginning of pregnancy results in an OR of free fatty acids 1,0023 (95%CI: 1,0000-1,0046), while oral glucose tolerance test presented an OR: 1,0186 (95%CI: 0,9645-1,0756). Conclusions: the results show the role of pre-gestational BMI on the risk of having macrosomic children, confirming the need to improve the nutritional status of women before and during pregnancy

¿Es el colesterol no-HDL un indicador de riesgo cardiovascular en las personas con diabetes mellitus? / Is non-HDL cholesterol a risk marker for cardiovascular atherosclerotic disease in diabetes mellitus?

La diabetes mellitus tipo 2 (DM2) es un factor de riesgo cardiovascular (FRCV) mayor. La DM confiere dos a cuatro veces más riesgo cardiovascular (RCV). El riesgo es aún más elevado en el paciente con DM2 que ha sufrido un infarto agudo de miocardio (IAM) o un accidente cerebrovascular (ACV). La dislipidemia de la DM2 consiste en triglicéridos elevados de ayuno, con mayor excursión posprandial, bajos niveles de HDLc, y alteraciones cuantitativas y cualitativas de LDLc y HDLc. El control glucémico apropiado en DM2 mejora en gran medida las alteraciones lipoproteicas. La terapia hipolipemiante es clave para reducir el RCV en la DM2. La reducción del RCV que se consigue con estatinas se basa en la reducción del LDLc y sus efectos pleiotrópicos. En pacientes que persisten con el perfil lipídico alterado, a pesar de dosis altas de estatinas, se debe considerar el agregado de otros agentes hipolipemiantes para reducir las lipoproteínas aterogénicas.

Type 2 diabetes (T2D) is a major cardiovascular risk factor (CVRF). Diabetes confers two to four times more cardiovascular risk (CVR). The risk is even higher in patients with T2D who have suffered an acute myocardial infarction (AMI) or cerebrovascular accident (CVA). The dyslipidemia of T2D consists of high fasting triglycerides, with greater postprandial excursion, low levels of HDLc and qualitative alterations of LDLc and HDLc. Appropriate glycemic control in T2D greatly improves lipoprotein abnormalities. Lipid-lowering therapy is key to reducing CVR in T2D. The CVR reduction achieved with statins is based on the reduction of LDLc. In patients who persist with an altered lipid profile despite highdose statins, the addition of other lipid-lowering agents to reduce atherogenic lipoproteins may be considered.

Outcomes after laparoscopic adrenalectomy for unilateral primary aldosteronism.

Unilateral primary aldosteronism (PA) is the most common surgically correctable cause of hypertension. Determination of success after laparoscopic adrenalectomy (LA) is limited by the lack of standardized criteria. We sought to evaluate the surgical recurrence and functional outcomes of LA in patients with Conn's syndrome applying the primary aldosteronism surgical outcome (PASO) Criteria. Descriptive observational analysis of patients treated with LA due to confirmed u nilateral Conn's syndrome between May 2007 and August 2020: Twenty patients were included in the cohort; 16 patients had TLA and other four PLA [58% male, median age 47 (IQR: 44-59.5) years and median follow-up of 64 (IQR: 2-156) ] months. Median tumor size was 1.2 (0.8-1.8) cm. No conversions to open surgery were recorded and the overall morbidity of the series was 1/20. No surgical or biochemical recurrence was observed. Five patients were excluded from the analysis of functional results due to lack of follow-up. According to the PASO criteria, complete, partial, and no success were observed in 8/15, 6/15, and 1/15, respectively. The surgical treatment of the disease is supported by the literature, and we were able to reproduce the results of other series. The use of standardized and reproducible criteria to assess its functional results would be essential for a more complete and integrated evaluation of adrenal surgery.

El hiperaldosteronismo primario es la causa más frecuente de hipertensión secundaria pasible de tratamiento quirúrgico. La determinación del éxito de la adrenalectomía laparoscópica (AL), actualmente, está limitada por la falta de criterios estandarizados. Buscamos evaluar la tasa de recurrencia quirúrgica y los resultados funcionales de la AL en pacientes con Síndrome de Conn aplicando los criterios PASO (primary aldosteronism surgical outcome). Análisis descriptivo y observacional de pacientes tratados con AL en contexto de síndrome de Conn unilateral confirmado, entre Mayo-2007 y Agosto-2020. Se incluyeron 20 pacientes en el estudio; 16 pacientes tratados mediante AL total y 4 con AL parcial (55% hombres, edad mediana de 47 (IQR: 44-59.5) años y mediana de seguimiento 64 (IQR: 2-156) meses. La mediana de tamaño tumoral fue de 1.2 (0.8-1.8) cm. No se registraron conversiones a cirugía abierta y la morbilidad global de la serie: 1/20. No se observó recurrencia quirúrgica o bioquímica. Se excluyeron 5 pacientes en el análisis de resultados funcionales por falta de seguimiento. Según los criterios PASO, se observó un éxito completo, parcial y ausente en 8/15, 6/15 y 1/15, respectivamente. El tratamiento quirúrgico de la enfermedad es avalado por la literatura y pudimos reproducir los resultados de otras series. El uso estandarizado y reproducible de criterios para valorar sus resultados funcionales sería fundamental para una evaluación más completa e integrada de la cirugía suprarrenal.

Regulation of the cellular redox state and the expression of DNA methyltransferase-1 in peripheral blood mononuclear cells from patients with Graves' disease.

BACKGROUND: Graves' disease is an autoimmune disorder characterised by excessive production of thyroid hormones, which induces increased cellular metabolism in most tissues and increased production of reactive oxygen species (ROS). The aim of this work was to analyse the effect of ROS on cell viability and the expression of catalase (CAT), glutathione peroxidase-1 (GPx-1), superoxide dismutase (SOD-1) and DNA methyltransferase-1 (DNMT-1) in peripheral blood mononuclear cells (PBMC) from patients with newly diagnosed Graves' disease or treated with methimazole. PATIENTS AND METHODS: For this study, women patients with newly diagnosed Graves' disease (n=18), treated with methimazole (n=6) and healthy subjects (n=15) were recruited. ROS were evaluated by flow cytometry, and the viability/apoptosis of PBMC was analysed by flow cytometry and fluorescence microscopy. Genomic expression of CAT, GPx-1, SOD-1 and DNMT-1 was quantified by real-time PCR. RESULTS: We found high levels of ROS and increased expression of CAT, GPx-1, SOD-1 and DNMT-1 in PBMC from patients with newly diagnosed Graves' disease. Methimazole treatment reversed these parameters. Cell viability was similar in all study groups. CONCLUSIONS: ROS induces the expression of CAT, GPx-1, and SOD-1. The activity of these enzymes may contribute to the protection of PBMC from the harmful effect of free radicals on cell viability. Increased expression of DNMT-1 may be associated with aberrant methylation patterns in immunoregulatory genes contributing to autoimmunity in Graves' disease.

Non-invasive follicular neoplasm with papillary-like nuclear features: a challenging and infrequent entity in Argentina.

PURPOSE: Non-invasive encapsulated follicular variant of papillary thyroid cancer was reclassified as non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP). These neoplasms have an extremely low malignant potential. The aim of this study was (1) to assess the prevalence of NIFTP in patients with papillary thyroid carcinoma, (2) to evaluate their outcomes, and (3) to determine their molecular profile. METHODS: Multicenter, descriptive, retrospective study. Patients with papillary thyroid cancer diagnosed from January 2006 to December 2016 from 11 referral centers were included. Diagnosis of NIFTP was based on criteria described by Nikiforov et al. in 2018. At least two pathologists agreed on the diagnosis. Two thousand six hundred and seventy-seven papillary thyroid cancer patients were included; 456 (17%) of them were follicular variant papillary thyroid cancer, and 30 (1.12%) fulfilled diagnostic criteria for NIFTP. RESULTS: Each of the 30 included patients underwent a total thyroidectomy, and 50% were treated with radioiodine (median dose 100 mCi). After a median follow-up of 37 months, 84% of patients had an excellent response, 3% had an indeterminate response and data was missing in the remaining 13%. No metastatic lymph nodes, distant metastases or recurrences were found. RAS mutations were detected in 4 patients (13%). CONCLUSION: The prevalence of NIFTP in our series is amongst the lowest reported. Excellent outcomes of patients underscore their low malignant potential. Molecular findings differ from other series, probably related to environmental or ethnic features of our population and the meticulous criteria for diagnosing NIFTP.

¿Es el colesterol no-HDL un indicador de riesgo cardiovascular en las personas con diabetes mellitus? / Is non-HDL cholesterol a risk marker for cardiovascular atherosclerotic disease in diabetes mellitus?

Resumen La diabetes mellitus tipo 2 (DM2) es un factor de riesgo cardiovascular (FRCV) mayor. La DM confiere dos a cuatro veces más riesgo cardiovascular (RCV). El riesgo es aún más elevado en el paciente con DM2 que ha sufrido un infarto agudo de miocardio (IAM) o un accidente cerebrovascular (ACV). La dislipidemia de la DM2 consiste en triglicéridos elevados de ayuno, con mayor excursión posprandial, bajos niveles de HDLc, y alteraciones cuantitativas y cualitativas de LDLc y HDLc. El control glucémico apropiado en DM2 mejora en gran medida las alteraciones lipoproteicas. La terapia hipolipemiante es clave para reducir el RCV en la DM2. La reducción del RCV que se consigue con estatinas se basa en la reducción del LDLc y sus efectos pleiotrópicos. En pacientes que persisten con el perfil lipídico alterado, a pesar de dosis altas de estatinas, se debe considerar el agregado de otros agentes hipolipemiantes para reducir las lipoproteínas aterogénicas.

Abstract Type 2 diabetes (T2D) is a major cardiovascular risk factor (CVRF). Diabetes confers two to four times more cardiovascular risk (CVR). The risk is even higher in patients with T2D who have suffered an acute myocardial infarction (AMI) or cerebrovascular accident (CVA). The dyslipidemia of T2D consists of high fasting triglycerides, with greater postprandial excursion, low levels of HDLc and qualitative alterations of LDLc and HDLc. Appropriate glycemic control in T2D greatly improves lipoprotein abnormalities. Lipid-lowering therapy is key to reducing CVR in T2D. The CVR reduction achieved with statins is based on the reduction of LDLc. In patients who persist with an altered lipid profile despite highdose statins, the addition of other lipid-lowering agents to reduce atherogenic lipoproteins may be considered.

Outcomes after laparoscopic adrenalectomy for unilateral primary aldosteronism / Resultados luego de adrenalectomía laparoscópica en hiperaldosteronismo primario unilateral

Abstract Unilateral primary aldosteronism (PA) is the most common surgically correctable cause of hypertension. Determination of success after laparoscopic adrenalectomy (LA) is limited by the lack of standardized criteria. We sought to evaluate the surgical recurrence and functional outcomes of LA in patients with Conn's syndrome applying the primary aldosteronism surgical outcome (PASO) Criteria. Descriptive obser vational analysis of patients treated with LA due to confirmed u nilateral Conn's syndrome between May 2007 and August 2020: Twenty patients were included in the cohort; 16 patients had TLA and other four PLA [58% male, median age 47 (IQR: 44-59.5) years and median follow-up of 64 (IQR: 2-156) ] months. Median tumor size was 1.2 (0.8-1.8) cm. No conversions to open surgery were recorded and the overall morbidity of the series was 1/20. No surgical or biochemical recurrence was observed. Five patients were excluded from the analysis of functional results due to lack of follow-up. According to the PASO criteria, complete, partial, and no success were observed in 8/15, 6/15, and 1/15, respectively. The surgical treatment of the disease is supported by the literature, and we were able to reproduce the results of other series. The use of standardized and reproducible criteria to assess its functional results would be essential for a more complete and integrated evaluation of adrenal surgery.

Resumen El hiperaldosteronismo primario es la causa más frecuente de hipertensión secundaria pasible de tratamiento quirúrgico. La determinación del éxito de la adrenalectomía laparoscópica (AL), actualmente, está limitada por la falta de criterios estandarizados. Buscamos evaluar la tasa de recurrencia quirúrgica y los resultados funcionales de la AL en pacientes con Síndrome de Conn aplicando los criterios PASO (primary aldosteronism surgical outcome). Análisis descriptivo y observacional de pacientes tratados con AL en contexto de síndrome de Conn unilateral confirmado, entre Mayo-2007 y Agosto-2020. Se incluyeron 20 pacientes en el estudio; 16 pacientes tratados mediante AL total y 4 con AL parcial (55% hombres, edad mediana de 47 (IQR: 44-59.5) años y mediana de seguimiento 64 (IQR: 2-156) meses. La mediana de tamaño tumoral fue de 1.2 (0.8-1.8) cm. No se registraron conversiones a cirugía abierta y la morbilidad global de la serie: 1/20. No se observó recurrencia quirúrgica o bioquímica. Se excluyeron 5 pacientes en el análisis de resultados funcionales por falta de seguimiento. Según los criterios PASO, se observó un éxito completo, parcial y ausente en 8/15, 6/15 y 1/15, respectivamente. El tratamiento quirúrgico de la enfermedad es avalado por la literatura y pudimos reproducir los resultados de otras series. El uso estandarizado y reproducible de criterios para valorar sus resul tados funcionales sería fundamental para una evaluación más completa e integrada de la cirugía suprarrenal.

[Prevalence and characteristics of obstructive sleep apneas according to severity]. / Prevalencia y características de apneas obstructivas de sueño según gravedad.

Obstructive sleep apnea (OSA) is a prevalent condition. OSA is defined as very severe when the apneas/ hypopneas index (AHI) is greater than 60 events/hour. However, its prevalence remains uncertain. The aim of this study was to describe the prevalence and characteristics from patients with OSA according to severity. We performed a retrospective analysis of patients > 18 years, assessed by respiratory polygraph. We evaluated a total of 5670 patients with a mean of age of 54.4 ± 14.3 years old, of which 3606 were included in the OSA group. The overall prevalence of very severe OSA was 4.8%, being higher in men than in women (6.8 vs 1.9%). This group of patients was younger than the less severe groups (54.7 ± 13.9: mild OSA; 56.5 ± 12.9: moderate OSA; 57.9 ± 13.0: severe OSA vs 51.5 ± 12.9 years in the very severe patients; p < 0.0001). The results showed a significant increase in the body mass index (BMI) of patients with very severe OSA (31.6 ± 6.9: mild OSA, 32.8 ± 6.6: moderate OSA, 34.0 ± 6.8 severe OSA vs 37.1 ± 8.5 extreme severity; p < 0.0001), with similar results in men, but not in women. Finally, drowsiness due to ESS > 10, showed a significant increase in the very severe group of both sexes; 43.2% vs 31.5% (severe OSA); 26.4% (moderate OSA) and 23.8% (mild OSA). Very severe OSA presented a prevalence of 4.8% of patients with OSA. According to previous publications in other studied populations, we found that patients with very severe OSA are younger and more obese than the less severe groups.

La apnea obstructiva del sueño (AOS) constituye una afección prevalente. Se define AOS muy grave cuando el índice de apneas/hipopneas (IAH) es mayor a 60 eventos/hora. Sin embargo, su prevalencia sigue siendo incierta. El objetivo de este estudio fue d escribir la prevalencia y características de pacientes con AOS según la gravedad. Se realizó un análisis retrospectivo de pacientes > 18 años, evaluados mediante poligrafía respiratoria. Fueron evaluados 5670 de los cuales se incluyeron 3606 pacientes con AOS, con una media de edad de 54.4 ± 14.3 años. La prevalencia global de AOS muy grave fue de 4.8%, siendo mayor en hombres que en mujeres (6.8 vs. 1.9). Este grupo resultó más joven que los grupos de menor gravedad (54.7 ± 13.9: AOS leve; 56.5 ± 12.9: AOS moderado; 57.9 ± 13.1: AOS grave vs. 51.5 ± 12.9 años en los muy graves; p < 0.0001). Los resultados mostraron un aumento significativo del índice de masa corporal en aquellos con AOS muy grave (31.6 ± 6.9: AOS leve, 32.8 ± 6.6: AOS moderado, 34.0 ± 6.8 AOS grave vs. 37.1 ± 8.5 de gravedad extrema; p < 0.0001), con resultados similares en hombres, pero no en mujeres. Finalmente, la somnolencia por ESS > 10, mostró un aumento significativo en el grupo muy graves de ambos sexos; 43.2% vs. un 31.5% (AOS grave); 26.4% (AOS moderado) y un 23.8% (AOS leve). El AOS muy grave presenta una prevalencia del 4.8% de los pacientes con AOS. En acuerdo con publicaciones previas en otras poblaciones estudiadas, encontramos que los pacientes con AOS muy graves, son más jóvenes y obesos que los grupos de menor gravedad.

Mesa 2: Insuficiencia cardíaca y diabetes mellitus tipo 2 / Table 2: heart failure and diabetes mellitus type 2

Desde que el estudio Framingham en 1974 reportó un aumento de dos a cinco veces en el riesgo de desarrollar insuficiencia cardíaca (IC) en pacientes con diabetes mellitus (DM), otros estudios observacionales confirmaron esta asociación que ha tomado gran visibilidad en los últimos años a partir de los resultados de los estudios de seguridad cardiovascular de las drogas antidiabéticas. La IC se define como un síndrome clínico que resulta del deterioro funcional o estructural del llenado ventricular o la eyección de sangre. Puede clasificarse según la fracción de eyección, la presencia de síntomas y la limitación de la actividad física. Existen distintos factores asociados a la IC en personas con DM como la edad, la antigüedad de la enfermedad, la utilización de insulina, la enfermedad coronaria, la hipertensión arterial, la enfermedad arterial periférica, el aumento de creatinina, el escaso control glucémico, la albuminuria y la obesidad. A su vez la IC se asocia a insulinorresistencia y a estados disglucémicos que se consideran de riesgo para el desarrollo de DM. En la fisiopatología están implicados el sistema nervioso simpático, el sistema renina angiotensina aldosterona, los péptidos natriuréticos, alteraciones renales, remodelación del ventrículo izquierdo, miocardiopatía diabética, neuropatía autonómica cardíaca y la inflamación. El diagnóstico de IC es clínico; los estudios complementarios orientan en el diagnóstico etiológico y son útiles en el seguimiento. El buen control glucémico es importante pero no suficiente para reducir el desarrollo de IC. Se ha descripto que algunos antidiabéticos podrían incrementar el riesgo de falla cardíaca y, por el contrario, otros tendrían un efecto beneficioso. El tratamiento de la IC no difiere de una persona sin DM. Dado que el pronóstico de la IC en los pacientes con DM es más severo, los esfuerzos deben centrarse en prevenir, diagnosticar y tratar los factores de riesgo cardiovascular para reducir el desarrollo de IC.

Since the Framingham study in 1974 reported a 2 to 5 fold increase in the risk of developing heart failure (HF) in patients with diabetes mellitus (DM), other observational studies confirmed this association that has gained great visibility in recent years from of the results of cardiovascular safety studies of antidiabetic drugs. HF is defined as a clinical syndrome that results from functional or structural deterioration of ventricular filling or blood ejection. It can be classified according to the ejection fraction, the presence of symptoms and the limitation to physical activity. There are different factors associated with HF in people with DM such as age, duration of the disease, insulin use, coronary heart disease, high blood pressure, peripheral arterial disease, increased creatinine, poor glycemic control, albuminuria and obesity. In turn, HF is associated with insulin resistance and dysglycemic states that are considered of risk for the development of DM. Pathophysiology involves the sympathetic nervous system, the renin angiotensin aldosterone system, natriuretic peptides, kidney abnormalities, left ventricular remodeling, diabetic cardiomyopathy, autonomic cardiac neuropathy, and inflammation. The diagnosis of HF is clinical, complementary studies guide the etiological diagnosis and are useful for follow-up. Good glycemic control is important but not sufficient to reduce the development of HF. It has been described that some antidiabetics could increase the risk of heart failure, while others would have a beneficial effect. The treatment of HF does not differ from a person without DM. Since the prognosis of HF in patients with DM is more severe, efforts should be focused on preventing, diagnosing and treating cardiovascular risk factors, to reduce the development of HF

Características metabólicas de los pacientes con apneas obstructivas del sueño / Metabolic characteristics from patients with obstructive sleep apnea

Introducción: la apnea obstructiva del sueño (AOS) es una patología de alta prevalencia asociada al sobrepeso y la obesidad. La relación entre el síndrome metabólico (SM) y la AOS no ha sido comunicada en nuestro medio. Materiales y métodos: estudio retrospectivo en adultos seleccionados para poligrafía respiratoria y evaluación metabólica clasificados según la presencia de SM. Resultados: incluimos 302 pacientes. La prevalencia de obesidad fue de 66,88% y de SM de 62,58%. El 19% presentó síntomas de somnolencia diurna y el 48,3% mostró cinco o más componentes del cuestionario STOP-BANG. Los pacientes con AOS fueron mayormente del sexo masculino, con mayor edad, peso corporal, circunferencia de cintura y cuello comparados con el grupo sin AOS (57 vs 49 años, p<0,001; 93,89 vs 85 kg, p<0,05; 108 vs 100 cm, p<0,001 respectivamente). Mostraron mayores valores de triglicéridos, presión arterial sistólica, obesidad e índice de desaturación (134 vs 99 mg/dl, p<0,001; 134 vs 128 mmHg, p<0,05; 69,2 vs 52,3%, p<0,05 y 14,6 vs 2 ev/h, p<0,001 respectivamente). La cantidad de componentes de STOP-BANG fue mayor en los pacientes con AOS (5 vs 3; p<0,001). Conclusiones: AOS y SM están frecuentemente relacionados y permanecen subdiagnosticados. La utilización de cuestionarios validados facilita la identificación de candidatos a estudios de sueño. Se necesitan implementar programas de gestión de hábitos saludables para prevenir las complicaciones de ambas patologías

Introduction: the obstructive sleep apnea (OSA) is a pathology of high prevalence associated with overweight and obesity. The relationship between metabolic syndrome (MS) and OSA has not been reported in our environment. Materials and methods: retrospective study in adults selected for respiratory polygraphy and metabolic evaluation classified according to the presence of MS. Results: we included 302 patients. The prevalence of obesity was 66.88% and MS 62.58%. 19% had symptoms of daytime sleepiness and 48.3% showed 5 or more components of the STOP-BANG questionnaire. Patients with OSA were mostly male, older, body weight, waist and neck circumference compared to the group without OSA (57 vs 49 years, p<0.001; 93.89 vs 85kg, p<0.05; 108 vs. 100 cm, p<0.001 respectively). They showed higher values of triglycerides, systolic blood pressure, obesity and desaturation index (134 vs 99 mg/dl, p<0.001; 134 vs 128 mmHg, p<0.05; 69.2 vs. 52.3%, p<0.05 and 14.6 vs 2 ev/h, p<0.001 respectively). The amount of STOP-BANG components was higher in patients with OSA (5 vs 3; p<0.001). Conclusions: AOS and MS are frequently related and remain underdiagnosed. The use of validated questionnaires facilitates the identification of candidates for sleep studies. It is necessary to implement healthy habits management programs to prevent complications of both pathologies

Características clínicas de los pacientes con apneas obstructivas del sueño muy severas / Clinical Characteristics of Patients with Very Severe Obstructive Sleep Apnea

Introducción: La presencia de apneas obstructivas del sueño (AOS) constituye una patología prevalente, cuya severidad se estima a partir del índice de apneas e hipopneas (IAH). Se define AOS muy severo (AOSms) por un AHI ≥ 60 eventos/hora cuyas características clínicas podrían ser diferentes. El objetivo de este estudio es describir las características clínicas de pacientes con AOSs y compararlas con formas menos severas de la enfermedad. Materiales y métodos: Estudio retrospectivo de pacientes derivados a un centro especializado en hipertensión arterial que reunían criterios clínicos para el estudio de AOS. Los pacientes se estudiaron mediante una poligrafía respiratoria, MAPA, cuestionarios y laboratorio. Se utilizaron tests no paramétricos para el análisis de los resultados. Resultados: Se incluyeron 115 pacientes con AOS, de los cuales 57 presentaron AOS moderado (AOSm), 48 AOSs y 10 AOSms. No se observaron diferencias estadísticamente significativas en la edad, índice de masa corporal (IMC), glucemia, porcentaje de pacientes diabéticos, diámetro de cintura ni de cuello. Se observó un incremento en la proporción de pacientes con hipertensión arterial al aumentar la severidad del AOS que sólo resultó significativo para el valor de la presión arterial diastólica en los pacientes muy severos (AOSms: 94.0 ± 7.7 mmHg vs AOSs: 87.9 ± 8.7 mmHg y AOSm: 84.4 ± 8.2 mmHg; p < 0.05 y p < 0.01 respectivamente). Conclusiones: En concordancia con trabajos previos, nuestros pacientes con AOSms presentaron mayor grado de hipertensión diastólica con características clínicas similares a las formas menos severas de AOS.

Clinical Characteristics of Patients with Very Severe Obstructive Sleep Apnea

Introduction: The presence of obstructive sleep apneas (OSA) is a prevalent disease, whose severity is determined from the Apnea- Hypopnea Index (AHI). Very severe OSA (vsOSA) is defined by an AHI ≥ 60 events/hour; with clinical characteristics that could be different. The purpose of this study was to describe the clinical characteristics of patients with sOSA and compare them with less severe manifestations of this disease. Materials and Methods: Retrospective study of patients referred to a specialized hypertension center who met clinical criteria for the study of OSA. Patients were analyzed by means of a respiratory polygraphy, Ambulatory Monitoring of Arterial Pressure (AMAP), questionnaires and laboratory tests. We used non-parametric tests for the analysis of the results. Results: Of the 115 patients with OSA included in the study, 57 showed moderate OSA (mOSA), 48 sOSA and 10 vsOSA. No statistically significant differences were observed in age, Body Mass Index (BMI), glycemia, percentage of diabetic patients, or waist or neck diameter. We observed that the proportion of patients with arterial hypertension became higher as the severity of the OSA increased. This increase was significant only regarding the value of diastolic arterial pressure in very severe patients (vsOSA: 94.0 ± 7.7 mmHg vs. sOSA: 87.9 ± 8.7 mmHg and mOSA: 84.4 ± 8.2 mmHg; p < 0.05 and p < 0.01, respectively). Conclusions: In agreement with previous studies, our patients with vsOSA showed a higher degree of diastolic hypertension with clinical characteristics similar to less severe manifestations of OSA.

Treatment with Intramuscular Levothyroxine in Refractory Hypothyroidism.

INTRODUCTION: Orally and daily levothyroxine (LT4) is the treatment of choice for hypothyroidism. In the majority of cases, the lack of effectiveness by this way may be due to poor adherence; however, gastrointestinal malabsorption may explain more cases of thyroxine refractoriness than previously reputed, due to the number of occult forms of these disorders. CASE PRESENTATION: A 55-year-old white man with a diagnosis of low risk of recurrence of follicular variant of papillary thyroid carcinoma was treated with total thyroidectomy, 30 mCi iodine 131, and oral LT4. A year before he presented a gastric adenocarcinoma that required a partial gastrectomy. He evolved with multiple episodes of intestinal subocclusion that had to be treated with enterectomy in the first instance, then digestive rest and total parenteral nutrition. In spite of having made increases in oral LT4 dose (3 µg/kg), the patient persisted with a thyroid-stimulating hormone level >100 mIU/L. For this reason, we decided to administer intramuscular LT4. CONCLUSION: Since there are no guidelines or consensus of intramuscular LT4 use, our experience and how we decided the dose and way of administration are presented in this article to contribute to future cases.

[Adrenal carcinoma induced hypoglycemia]. / Hipoglucemia inducida por carcinoma adrenal.

Adrenal carcinoma is a rare malignancy of poor prognosis. The most common clinical presentation is secondary to hormone production, while the development of symptomatic hypoglycemia is exceptional. We report the case of a 37 year old-woman admitted to hospital with severe hypoglycemia, hypertension, hypokalemia and amenorrhea. In the laboratory we found hypoglycemia, with low insulin levels, and androgen levels in tumor range. CT of abdomen and pelvis showed a heterogeneous lesion of solid appearance without a cleavage plane relative to liver parenchyma, and intense contrast enhancement. Retroperitoneal mass was removed, and the patient evolved without complications, blood glucose and potassium were normalized, blood pressure stabilized and menstrual cycles recovered.