Effect of "no Added Salt Diet " on Blood Pressure Control & 24 Hour Urinary Sodium Excretion in Mild to Moderate Hypertension
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 2,005
- 试验地点
- 1
- 主要终点
- decrease blood pressure
研究概览
简要总结
There is much evidence that a reduction in dietary salt intake lowers blood pressure in hypertensive individuals, however few have looked at effect of 'no added salt diet' and modest salt intake on total restriction of sodium intake with especial attention to very exact surrogate of urinary sodium excretion. Our study demonstrates that a modest reduction in salt intake from regular level of 10 - 12 g per day to the recommended level of 5 - 6 g per day lowers blood pressure by 12.1/ 6.8 mmHg at day time and 11.1/5.9 mmhg at night time.However only 35% of patients reach to the goal of sodium restriction of diet(below 100 meq/dl in 24 hours urine.It means even modest salt restriction can dramatically decrease blood pressure with no added salt diet.
详细描述
Abstract Incidence of Hypertension as a major cardiovascular treat is increasing. The best known diet for hypertensives is 'no added salt diet'.
In this study we evaluated the effect of 'no added salt diet' on hypertensive population with high dietary sodium intake by measuring 24 hour urinary sodium excretion.
Method & results: In this single center randomized study 80 patients (60 cases and 20 controls) not on any drug therapy for hypertension with mild to moderate hypertension were enrolled. 24 hour holter monitoring of BP and 24 hour urinary sodium excretion were measured before and after 6 weeks of 'no added salt diet'. There is no statistically significant difference between age , weight , sex , Hyperlipidemia , family history of hypertension , mean systolic & diastolic BP at day and night and mean urinary sodium excretion in 24 hour urine of case &control groups .78% of all patients had moderate to high salt intake .
After 6 week of 'no added salt diet' systolic & diastolic BP significantly decreased at day (mean decrease: 12.1 /6.8 mmhg) and night (mean decrease: 11.1/5.9 mmhg ) which is statistically significant between case & control groups (P 0.0001).
Urinary sodium excretion of 24 hour urine decreased 37.1meq/d ± 39,67mg/dl which is statistically significant in case & control groups (p: 0.0001).
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 20 Years 至 70 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Hypertension proved by 24 hours holter monitoring
- •Mild to moderate hypertension
- •Signing the written consent
排除标准
- •Use of any drug for hypertension
- •Use of any drug for 6 week period
- •Unable to collect 24 hours urine
- •Unable to tolerate 24 hours holter of blood pressure
结局指标
主要结局
decrease blood pressure
时间窗: after 6 weeks of diet
次要结局
- decrease 24 hours urinary sodium excretion(after 6 weeks of diet)