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Chronic Hemodialysis Patients with Visceral Obesity Have a Higher Risk for Cardiovascular Events

血液透析患者的內臟型肥胖和心血管併發症風險相關

摘要


血液透析患者罹患心血管疾病的風險相當高。透析患者罹患心血管疾病的危險因子包括年齡、營養不良、透析治療持續時日、糖尿病及高血磷。然而,透析患者腹部肥胖與心血管疾病的關係並不清楚。本研究的目的即在釐清長期透析患者內臟脂肪面積和心血管併發症的關係。利用電腦斷層掃描測量94位患者的內臟脂肪面積,並且評估這些患者的腹部主動脈鈣化指數(ACI)、血脂肪和心血管併發症。與內臟脂肪面積少於100 cm^2的患者相比,內臟脂肪面積較大(≥100 cm^2)的患者,其心血管併發症和血清三酸甘油酯顯著較高,且高密度脂蛋白膽固醇顯著較低。內臟脂肪面積較大且長期接受透析治療的患者,其ACI分析結果較嚴重,且缺血性心臟病發病率較高。這篇研究結果顯示內臟脂肪面積較大的慢性透析患者,其心血管疾病風險較高,特別是缺血性心臟病。

並列摘要


The risk of cardiovascular disease is substantially high in hemodialysis patients. The risk factors for cardiovascular disease in dialysis patients include age, malnutrition, duration of dialysis, diabetes mellitus and hyperphosphatemia. However, it is not clear whether cardiovascular disease is associated with abdominal obesity in dialysis patients. The aim of the present study was to clarify the relationship among visceral fat area and cardiovascular complications in chronic dialysis patients. Area of visceral fat was measured using computed tomography scan in 94 patients. The abdominal aortic calcification index (ACI), blood lipid profile and complication of cardiovascular disease were evaluated in these patients. Compared to patients with smaller visceral fat area (<100 cm^2), those with larger visceral fat area (≥100 cm^2) showed significantly higher cardiovascular complication and higher serum levels of triglyceride and significantly lower serum levels of HDL-cholesterol. Patients with larger visceral fat area and longer duration of dialysis showed severer calcification by ACI analysis, and showed higher incidences of ischemic heart disease. This study suggested that chronic dialysis patients with higher visceral fat area have a higher risk for vascular events, especially ischemic heart disease.

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