Abstract
Objective To study the related factors of hyponatremia in the elderly patients with chronic heart failure in order to provide evidences for preventing and nursing of hyponatremia.Methods Clinical data of 143 patients over 65 years old were investigated.The patients were divided into hyponatremia group (n =47)and control group (n =96).There were 29 cases with more than 80 years older and 19 cases with 65-79 years older in hyponatremia group.The data from the two groups were compared.Results The patients in hyponatremia group were significantly older than these in control group [(88.5 ± 4.8) vs (82.5 ± 7.5),t =4.895,P ＜0.01),and the incidences of hypertension,pneumonia,diabetes and acute heart failure,as well as the usage of diuretics and nasogastric tubes in hyponatremia group were significantly higher than that in the control group(x2 =26.034,14.492,5.385,10.881,12.674,5.389;P ＜ 0.05).Very elderly patients needed longer time to achieve normal natrium level in blood serum than that elderly patients (t =5.069,P ＜ 0.01).Conclusions Hyponatremia of the elderly patients with chronic heart failure was related to hypertension,pneumonia,diabetes,acute heart failure,usage of diuretics and nasogastric tubes.The symptoms of hyponatremia in very elderly patients is atypical,which are very likely to be neglected.We should pay more attention to the special population. Key words: Elderly people; Hyponatremia; Chronic heart failure
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