Effect of Dietary Sodium Restriction in the Management of Patients With Heart Failure and Diastolic Dysfunction
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.
調査の概要
詳細な説明
研究の種類
入学 (実際)
段階
- 適用できない
連絡先と場所
研究場所
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RS
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Porto Alegre、RS、ブラジル、90035003
- Hospital de Clínicas de Porto Alegre
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
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)
研究計画
研究はどのように設計されていますか？
デザインの詳細
- 主な目的：処理
- 割り当て：ランダム化
- 介入モデル：並列代入
- マスキング：独身
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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実験的：Intervention
Sodium restriction (1.6g sodium daily - 4g salt) combined with 800 ml of fluid intake
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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. |
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介入なし：Control
Normal sodium diet (4g sodium daily - 10g salt) and free fluid intake
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この研究は何を測定していますか？
主要な結果の測定
結果測定 |
時間枠 |
|---|---|
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Weight loss
時間枠：seven days or hospital discharge
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seven days or hospital discharge
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Assessment of clinical stability
時間枠：Seven days or hospital discharge
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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
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Neurohormonal activation
時間枠：On admission and at discharge
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Assessment of neurohormonal activation shall include measurement of serum renin, aldosterone, and BNP levels.
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On admission and at discharge
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Daily perception of thirst
時間枠：Seven days or hospital discharge
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A visual scale (with values ranging from 0 to 10) will be used daily to verify the degree of thirst.
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Seven days or hospital discharge
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Readmission rate at 30 days
時間枠：Patients shall be followed for 30 days after discharge.
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Patients shall be followed for 30 days after discharge.
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協力者と研究者
捜査官
- 主任研究者：Eneida Rabelo da Silva, ScD、HCPA
出版物と役立つリンク
一般刊行物
- Machado d'Almeida KS, Rabelo-Silva ER, Souza GC, Trojahn MM, Santin Barilli SL, Aliti G, Rohde LE, Biolo A, Beck-da-Silva L. Aggressive fluid and sodium restriction in decompensated heart failure with preserved ejection fraction: Results from a randomized clinical trial. Nutrition. 2018 Oct;54:111-117. doi: 10.1016/j.nut.2018.02.007. Epub 2018 Mar 21.
- d'Almeida KS, Rabelo-Silva ER, Souza GC, Trojahn MM, Barilli SL, Mansson JV, Biolo A, Rohde LE, Clausell N, Beck-da-Silva L. Effect of fluid and dietary sodium restriction in the management of patients with heart failure and preserved ejection fraction: study protocol for a randomized controlled trial. Trials. 2014 Sep 4;15:347. doi: 10.1186/1745-6215-15-347.
研究記録日
主要日程の研究
研究開始 (実際)
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。