Arrhythmic Effects of Hight Dose Caffeine
Effect of High-dose Caffeine on Cardiac Arrhythmias in Patients With Heart Failure - a Randomized Clinical Trial
Heart failure patients represent a group of individuals at higher risk for cardiac arrhythmias. There is a perception that caffeine consumption may represent an increase in this risk. Although the medical staff and health professionals suggest a reduction in the intake of this substance to patients considered at risk, there is no scientific proof for this recommendation.
Some animal studies suggest a possible association between arrhythmias and caffeine use with higher doses, but this finding did not appear in human studies. In particular, little is known about the association between caffeine consumption and arrhythmias in patients with heart failure, especially at higher doses of consumption.
More specific and safe guidelines on caffeine consumption are needed.
研究概览
研究类型
注册 (预期的)
阶段
- 不适用
联系人和位置
学习地点
-
-
Rio Grande do Sul
-
Porto Alegre、Rio Grande do Sul、巴西
- 招聘中
- Hospital de Clinicas de Porto Alegre
-
副研究员:
- Priccila Zuchinali
-
-
参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- Heart failure in NYHA functional class I-III
- LV Ejection fraction <45%
- Age > 18 y.o.
- Cardio-defibrillator implanted with normal functioning with at least 30 days.
Exclusion Criteria:
- Impossibility of take caffeine
- Inability to perform an exercise test
- Initial use of amiodarone in the last 2 months
- Unstable ventricular arrhythmias, shock or ATP in the last 60 days
- Hospitalization in the last two months due to decompensated heart failure
学习计划
研究是如何设计的?
设计细节
- 主要用途:预防
- 分配:随机化
- 介入模型:交叉作业
- 屏蔽:四人间
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
实验性的:Caffeine
Caffeine 500mg
|
Five doses of 100mg of caffeine diluted in 100 ml of decaffeinated coffee.
One dose every hour for five hours
|
|
安慰剂比较:Placebo
Lactose 500mg
|
研究衡量的是什么?
主要结果指标
结果测量 |
大体时间 |
|---|---|
|
Arrhythmias
大体时间:6 hours
|
6 hours
|
合作者和调查者
出版物和有用的链接
研究记录日期
研究主要日期
学习开始
初级完成 (预期的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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.