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Resting Heart Rate and Associated Factors in Patients with Chronic Heart Failure in Cameroon: A Cross-sectional Study in Sub-saharan Africa

机译:喀麦隆慢性心力衰竭患者休息心率和相关因素:撒哈拉以南非的横截面研究

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Introduction: Controlled heart rate has been associated with better prognosis in patients with chronic heart failure (CHF). Radial pulse palpation is a simple and useful method to evaluate heart rate control especially in limited resources setting such as sub-Saharan Africa. However, data on heart rate control in patients with heart failure are scarce in our context. Therefore, we sought to investigate heart rate control in patients followed for chronic heart failure in Cameroon. Methodology: We conducted a cross-sectional study from January to September 2017 in three specialized cardiology centers of Cameroon. We included patients with chronic heart failure, normal sinus rhythm without recent cardiac events. Resting heart rate was measured by pulse palpation after 05 minutes of rest, three (03) times over 60 seconds. An uncontrolled heart rate was defined as HR ≥70bpm. Results: Overall, 213 patients with a mean age of 63±15 years were included. About 64.8% of patients have a heart rate above recommended targets (≥70 bpm). There was no significant association between age, gender, NYHA stage, cardiovascular risk factors or current therapies and heart rate control. Conclusion: Uncontrolled heart rate is frequent in patients with chronic heart failure in our context with more than half presenting a resting heart rate above currently recommended values.
机译:介绍:受控心率与慢性心力衰竭(CHF)患者更好的预后有关。径向脉冲触觉是一种简单而有用的方法,可以评估心率控制,尤其是在撒哈拉以南非洲的有限资源环境中。然而,在心力衰竭患者中对心率控制的数据在我们的背景下是稀缺的。因此,我们试图调查患者的心率控制,然后在喀麦隆慢性心力衰竭。方法论:我们在2017年1月至2017年9月在喀麦隆三个专业心脏病中心进行了横断面研究。我们包括患有慢性心力衰竭,正常窦性心律的患者,没有最近的心脏事件。在休息05分钟后,通过脉冲触发测量休息心率,超过60秒的三次(03)次。不受控制的心率定义为HR≥70bpm。结果:总体而言,213例平均年龄为63±15年的患者。大约64.8%的患者的心率高于推荐的目标(≥70bpm)。年龄,性别,NYHA阶段,心血管风险因素或当前疗法和心率控制之间没有重大关联。结论:在我们的背景下慢性心力衰竭患者的不受控制的心率频繁出现超过一半以上的休息心率以上目前推荐的值。

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