ABSTRACT
Resumen ANTECEDENTES: Durante el embarazo suceden cambios adaptativos, secundarios a las variaciones hormonales, como las alteraciones en la concentración de lípidos plasmáticos necesarias para garantizar la adecuada nutrición al feto. Algunas veces la concentración de triglicéridos sobrepasa los límites de tolerancia y ello pone en riesgo la salud de la madre. CASO CLÍNICO: Paciente con antecedente de un embarazo, hipertrigliceridemia familiar que se exacerbó por los procesos fisiológicos del embarazo. Se hospitalizó para tratarla y los especialistas en Nutrición y Endocrinología le indicaron fármacos y plasmaféresis. CONCLUSIONES: La plasmaféresis es un método efectivo después de seis sesiones de tratamiento con el que se logran reducir 70% las concentraciones séricas triglicéridos, aunque no fue una medida definitiva y se requirió finalizar el embarazo.
Abstract BACKGROUND: Adaptive changes occur in pregnancy, secondary to hormonal variations, one of which is alterations in the level of plasma lipids that aims to ensure adequate nutrition to the fetus. However, sometimes triglycerides reach such high levels that they could compromise maternal health. CLINICAL CASE: The case of a female patient with a history of familial hypertriglyceridemia, exacerbated by the physiological processes of pregnancy, is presented. It was managed intrahospitalary, followed by nutrition and endocrinology, in addition to the use of pharmacological treatment and plasmapheresis. CONCLUSIONS: The use of plasmapheresis was evaluated as a therapeutic measure, where it was found to be an equally effective method after 6 sessions of treatment, achieving a 70% reduction in serum levels of triglycerides, however it was not a definitive measure and it was necessary to end the pregnancy.
ABSTRACT
Objective To evaluate the value of low-density lipoprotein-cholesterol (LDL-C) and non-high-density lipoprotein-cholesterol (non-HDL-C) in differential diagnosis of familial hypertriglyceridemia (FHTG) and familial combined hyperlipidemia (FCHL).Methods We recruited 9 FHTG pedigrees (94 subjects) and 24 FCHL pedigrees (94 subjects) and then divided them into affected groups and non-affected groups according to lipid abnormality.Another 10 normal control pedigrees (57 subjects) served as controls.We compared the routine lipid levels such as triglyceride (TAG),total cholesterol (TC),HDL-C and LDL-C and non-HDL-C between the groups.After stratification based on TAG level,we observed the relationship between LDL-C and non-HDL-C.Last we confirmed and analyzed the cut-off value of differential diagnosis between FHTG and FCHL with receiver operating characteristic (ROC) curve.Results The levels of TAG,TC,and non-HDL-C were significantly higher in the affected group of FHTG than in the non-affected group of FHTG and the normal group (P＜0.01 or P＜0.05).The levels of TAG,TC,HDL-C,LDL-C and non-tHDL-C wcrc significantly higher in the affected group of FCHL than in the non-affected group of FCHL and the normal group (P＜0.01 or P＜0.05).The levels of TAG were significantly higher (P＜0.01) while TC,HDL-C,LDL-C and non-HDL-C levels were significantly lower (P＜ 0.01 or P＜0.05) in the affected group of FHTG than in the affected group of FCHL.The association between LDL-C and non-HDL-C was positive both in FHTG and FCHL,but the relationship became weaker as TAG level increased.The cut-off value of LDL-C and non-HDL-C was 3.575 mmol/L and 4.525 mmol/L,respectively.Conclusion In addition to the routinely used lipid indexes,non-HDL-C may be a new index for differential diagnosis of FHTG and FCHL,and may be superior to LDL-C in this regard.
ABSTRACT
La hipertrigliceridemia es un factor de riesgo cardiovascular en la diabetes. Esta anormalidad es causada por varios mecanismos. En la hipertrigliceridemia familiar, la elevación extrema de triglicéridos se debe a acúmulo de lipoproteínas poco aterogénicas. Nuestro objetivo fue comparar el grosor de la capa íntima y media de la carótida y la prevalencia de insuficiencia coronaria o de estenosis carotídea en pacientes diabéticos con hipertrigliceridemia familiar (n=41) vs controles hiperlipidémicos (n=15) o normolipidémicos (n=48) pareados por edad, sexo, tiempo de evolución de la diabetes y otros factores de riesgo cardiovascular. Además se midió la incidencia a cinco años de eventos cardiovasculares. La prueba de esfuerzo resultó anormal en una proporción similar en casos y controles (4.8 vs 6.2%). El grosor de la capa íntima y media de la carótida fue menor en los casos con hipertrigliceridemia familiar (0.55±0.12 vs 0.63±0.22 en controles normolipidémicos y 0.66 ±0.18 mm en controles hiperlipidémicos (p=0.02)). La incidencia de complicación cardiovascular fue similar en los tres grupos. La hipertrigliceridemia familiar no se asocia a un aumento substancial en el número de complicaciones macrovasculares en personas con diabetes tipo 2, pese a la presencia de concentraciones extremas de triglicéridos y niveles bajos de colesterol HDL.
Hypertriglyceridemia is a cardiovascular risk factor in type 2 diabetes. However, this abnormality may be caused by several mechanisms. In familial hypertriglyceridemia, a hyperlipidemia associated with type-2 diabetes, plasma accumulation of non atherogenic particles explains the presence of hypertriglyceridemia. Our objective was to compare the prevalence of coronary insufficiency and carotid artery stenosis in patients with type-2 diabetes with or without familial hypertriglyceridemia. Controls were paired against cases based on age, gender, diabetes duration, treatment and other cardiovascular risk factors. Controls had either a normal lipid profile (n=48) or hyperlipidemia (n=15). The intima media thickness of the carotid arteries was significantly lower in cases compared to controls (0.55±0.12 vs 0.63± 0.22 in normolipidemic controls and 0.66 ±0.18 mm in hyperlipidemic subjects (p=0.02)). Exercise treadmill testing was abnormal in a similar proportion of cases and controls (4.8 vs 6.2%). Incidence of cardiovascular complications was not different between groups. We therefore conclude that severe hypertriglyceridemia due to familial hypertriglyceridemia is not associated with an increased prevalence of symptomatic atherosclerosis in patients with type-2 diabetes.