心力衰竭患者的高峰氧气吸收的差异:系统性审查和元分析
Bharathi Upadhya1, Christoforos D Giannaki2, Pinelopi S Stavrinou2
1Division of Cardiology, Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA.
Physiological reports
|November 17, 2025
概括
患有慢性心力衰竭 (CHF) 和缓冲症的患者与没有缓冲症的患者相比,峰值氧气消耗 (VO2峰值) 显著降低. 这一发现突显了缓解症对心血管疾病患者运动能力的影响.
科学领域:
- 心脏病学 心脏病学
- 运动生理学 运动生理学
- 代谢障碍 代谢障碍 代谢障碍
背景情况:
- 慢性心力衰竭 (CHF) 与运动能力的降低有关,主要通过峰值氧气消耗 (VO2峰值) 来衡量.
- 复杂代谢综合征 - - 卡切西亚 - - 进一步损害肌肉质量和力量,可能加剧CHF患者的VO2峰值下降.
研究的目的:
- 系统地评估和比较患有慢性心血管功能障碍和硬性心血管功能障碍和单独患有慢性心血管功能障碍的患者的VO2峰值.
- 在慢性心力衰竭的背景下,量化卡赫克西亚对运动能力的影响.
主要方法:
- 在主要数据库 (PubMed,科学网,Scopus,Cochrane图书馆) 进行了系统的文献搜索,从创立到2025年4月.
- 使用随机效应模型对10项选定的队列研究数据进行了元分析.
- 在敏感性分析中,可克西亚的定义是标准化的 (在6个月内减轻≥7.5%的体重).
主要成果:
- 患有慢性心力衰竭和空腹症的患者与没有空腹症的慢性心力衰竭患者相比,VO2峰值的统计学上显著的平均降低为-2.21毫升/千克/分钟 (p < 0.01).
- 这种减轻仍然是显著的,当缓解症严格定义为≥7.5%的体重减轻超过6个月 (MD: -2.47毫升/公斤/分钟,p <0.01).
- 超回归显示,年龄,性别,BMI或LVEF没有显著的缓解效应,也没有发现出版偏差.
结论:
- 在患有慢性心力衰竭的患者中,卡切西亚独立地与运动能力显著下降 (VO2峰值) 相关.
- 这些发现强调了解决卡赫克西亚的重要性,以改善心肺健康和潜在的结果在CHF管理.
更多相关视频
08:35Oxygenation-sensitive Cardiac MRI with Vasoactive Breathing Maneuvers for the Non-invasive Assessment of Coronary Microvascular Dysfunction
Published on: August 17, 2022
3.0K
09:04Skeletal Muscle Neurovascular Coupling, Oxidative Capacity, and Microvascular Function with 'One Stop Shop' Near-infrared Spectroscopy
Published on: February 20, 2018
12.9K
相关概念视频
01:22Heart Failure VI: Adjunct Therapies
243
Additional therapies for treating patients with heart failure (HF) may include procedural interventions, supplemental oxygen, the management of sleep disorders, and nutritional therapy.Procedural InterventionsImplantable Cardioverter-Defibrillator: For patients at risk of life-threatening arrhythmias due to severe left ventricular dysfunction, an Implantable Cardioverter-Defibrillator (ICD) can detect and terminate these arrhythmias, preventing sudden cardiac death and improving survival rates.
243
01:17Pathophysiology of Heart Failure
2.7K
Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
2.7K
01:29Heart Failure II: Pathophysiology
695
Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
695
01:27Heart Failure I: Introduction
671
Heart failure refers to a clinical syndrome caused by structural or functional cardiac disorders that prevent the heart from pumping an adequate amount of blood to meet the body's metabolic needs. This condition often arises from myocardial infarction or ischemia, leading to decreased cardiac output, reduced tissue perfusion, impaired gas exchange, fluid volume imbalance, and decreased functional ability.Heart failure can result from disruptions in the mechanisms that regulate cardiac output...
671
01:26Heart Failure III: Clinical Manifestations
457
Heart failure (HF) manifests primarily as dyspnea, fatigue, and fluid retention, resulting in peripheral and pulmonary edema. Symptoms may vary depending on which ventricle is more affected, left or right.Left-Sided Heart FailureAlso known as left ventricular failure, this condition results from the left ventricle's inability to fill or eject sufficient blood into the systemic circulation. It leads to pulmonary congestion, which occurs when the left ventricle fails to eject blood effectively...
457
01:30Heart Failure VII: Nursing Interventions
404
The first step in nursing management of a patient with heart failure involves thoroughly assessing the patient's medical history.Subjective Data: Obtain the patient's medical history of coronary artery disease, hypertension, myocardial infarction, and symptoms like dyspnea, orthopnea, and paroxysmal nocturnal dyspnea.Objective Data: Conduct a physical examination to identify findings such as jugular vein distention, pulmonary crackles, tachycardia, murmurs, peripheral edema, and vital signs,...
404