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Effect of Dietary Sodium Restriction in the Management of Patients With Heart Failure and Diastolic Dysfunction

2017年8月1日 更新者:Hospital de Clinicas de Porto Alegre

Effect of Dietary Sodium Restriction in the Management of Patients With Heart Failure and Preserved Ejection Fraction: a Randomized Clinical Trial

Although half of the patients with HF has normal ejection fraction or slightly altered (HF-PEF) and the prognosis differs little from those with reduced ejection fraction, the pathophysiology of HF-PEF is still poorly understood.

Sodium restriction is the most common measure of self-care oriented to HF patients for management of congestive episodes. The role of this orientation in the treatment of patients with preserved ejection fraction, however, is still unclear. The evaluation of the effects of sodium restriction on neurohormonal activation and episodes of decompensation in HF-PEF can promote a better understanding of the pathophysiological progression of this complex syndrome.

研究概览

地位

完全的

详细说明

This is a randomized, parallel trial with blinded outcome assessment. The sample will include adult patients (aged ≥18 years) with a diagnosis of HF-PEF admitted for HF decompensation. The patients will be randomized to receive a diet with sodium and fluid intake restricted to 0.8 g/day and 800 mL/day respectively (intervention group) or an unrestricted diet, with 4 g/day sodium and unlimited fluid intake (control group), and followed for 7 days or until hospital discharge. The primary outcome shall consist of weight loss at 7 days or discharge. The secondary outcome includes assessment of clinical stability, neurohormonal activation, daily perception of thirst and readmission rate at 30 days.

研究类型

介入性

注册 (实际的)

74

阶段

  • 不适用

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习地点

    • RS
      • Porto Alegre、RS、巴西、90035003
        • Hospital de Clinicas de Porto Alegre

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

18年 及以上 (成人、年长者)

接受健康志愿者

不

有资格学习的性别

全部

描述

Inclusion Criteria:

  • Patients of both sexes
  • Age equal to or above 18 years
  • Diagnosis of heart failure whit preserved ejection fraction (LVEF> 50%)
  • Patients hospitalized for heart failure decompensation whit hospital admission within 36 hours, who agree to participate in the study by signing the informed consent.

Exclusion Criteria:

  • Patients who present values of endogenous creatinine clearance less than or equal to 30 ml / min;
  • Cardiogenic shock,
  • Those with survival compromised by another disease in evolution and / or difficulty adhering to treatment (dementia, cognitive impairment)

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

  • 主要用途:治疗
  • 分配:随机化
  • 介入模型:并行分配
  • 屏蔽:单身的

武器和干预

参与者组/臂
干预/治疗
实验性的:Intervention
Sodium restriction (1.6g sodium daily - 4g salt) combined with 800 ml of fluid intake

Patients that are eligible and fulfill the inclusion criteria will be invited to participate while hospitalized, and then sign the informed consent form. Then, the dietitian on call will be notified in order to change the dietary map of the patients. The prescription diet for both the intervention and control group will be the same: DIET AS RESEARCH PROTOCOL. PATIENT WILL RECEIVE THE DIET UNTIL DAY __ / __ OR DISCHARGE. PLEASE DO NOT CHANGE IT. This will be combined with the medical staff and with the Nutrition and Dietetics service.

The evaluation of outcomes after hospital discharge will be held in the institution of reference when will be performed clinical evaluation and blood samples collection for neurohormonal activation analysis.

无干预:Control
Normal sodium diet (4g sodium daily - 10g salt) and free fluid intake

研究衡量的是什么?

主要结果指标

结果测量
大体时间
Weight loss
大体时间:seven days or hospital discharge
seven days or hospital discharge

次要结果测量

结果测量
措施说明
大体时间
Assessment of clinical stability
大体时间:Seven days or hospital discharge

Symptomatic improvement without evidence of congestion (congestion score)

Weight stable for two days, without changing more than 1kg, (daily weight)

Without IV drug for HF for 48 hours (daily record of medication: diuretics, vasodilators)

No increase in diuretic dose for 48 hours (daily records of medications)

Seven days or hospital discharge
Neurohormonal activation
大体时间:On admission and at discharge
Assessment of neurohormonal activation shall include measurement of serum renin, aldosterone, and BNP levels.
On admission and at discharge
Daily perception of thirst
大体时间:Seven days or hospital discharge
A visual scale (with values ranging from 0 to 10) will be used daily to verify the degree of thirst.
Seven days or hospital discharge
Readmission rate at 30 days
大体时间:Patients shall be followed for 30 days after discharge.
Patients shall be followed for 30 days after discharge.

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

调查人员

  • 首席研究员:Eneida Rabelo da Silva, ScD、HCPA

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2013年3月1日

初级完成 (实际的)

2016年7月31日

研究完成 (实际的)

2016年7月31日

研究注册日期

首次提交

2013年7月8日

首先提交符合 QC 标准的

2013年7月8日

首次发布 (估计)

2013年7月11日

研究记录更新

最后更新发布 (实际的)

2017年8月2日

上次提交的符合 QC 标准的更新

2017年8月1日

最后验证

2017年8月1日

更多信息

与本研究相关的术语

其他相关的 MeSH 术语

其他研究编号

  • HCPA - 120437

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)?

未定

此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.

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