患有周期性呼吸的心力衰竭患者的外周氧化:来自NIRS的见解
Elisabetta Salvioni1, Mattia Chiesa1,2, Massimo Mapelli1,3
1Centro Cardiologico Monzino, IRCCS, Via Parea, 4, Milan 20138, Italy.
European heart journal. Acute cardiovascular care
|January 12, 2026
概括
心力衰竭患者的周期性呼吸 (PB) 显示出不同的肌肉氧化模式. 异相氧化与严重疾病和更糟糕的预后有关,为心力衰竭进展提供了洞察力.
科学领域:
- 心脏病学 心脏病学
- 呼吸系统生理学 呼吸系统生理学
- 医疗技术 医疗技术 医学技术
背景情况:
- 周期性呼吸 (PB) 是一种呼吸模式,其特点是通风的周期性波动.
- 在包括心力衰竭 (HF) 在内的各种疾病中观察到PB,并且与预后不佳有关.
- PB对外围肌肉氧气可用性的影响尚不清楚.
研究的目的:
- 调查定期呼吸 (PB) 是否会影响外围肌肉氧气可用性,在患有严重减排分数心力衰竭 (HF) 的患者中.
- 探索PB和HF严重程度和预后期间不同外周氧化模式之间的关系.
主要方法:
- 一项前性,单中心研究,涉及20名患有PB的严重减排分数HF患者.
- 近红外光谱学 (NIRS) 用于测量四肢大腿肌中的氧化 (O2Hb) 和脱氧血红蛋白 (HHb).
- 评估了通风,过期气体,心肺运动测试 (CPET),心声学和预后得分 (MECKI).
主要成果:
- 确定了两个不同的外围氧化模式:O2Hb和HHb的相内和相外波动.
- 阶段内模式与较不严重的HF相关 (更高的喷射分数,更低的体积,更低的BNP/sST2).
- 脱阶段模式与更严重的HF,更长/更少的周期变量,更高的MECKI得分和显著更高的6个月死亡率 (6/13对2/7) 有关.
结论:
- 在HF患者中,定期呼吸与明显的外周肌肉氧化模式有关.
- 异相氧化可能表明通风/输液不匹配和疾病进展.
- 这些发现为PB对外周氧化和HF预后的动态影响提供了新的见解.
相关概念视频
01:23Physiological Control of Respiration
5.8K
Introduction
Breathing, a seemingly passive process, is regulated by the respiratory center in the brainstem. This center coordinates the involuntary control of respirations, which means it occurs without conscious effort, ensuring a smooth and uninterrupted pattern.
Regulation of Ventilation
The body maintains ventilation by monitoring levels of carbon dioxide (CO2), oxygen (O2), and hydrogen ion concentration (pH) in the arterial blood. Among these factors, the level of CO2 plays a crucial...
Breathing, a seemingly passive process, is regulated by the respiratory center in the brainstem. This center coordinates the involuntary control of respirations, which means it occurs without conscious effort, ensuring a smooth and uninterrupted pattern.
Regulation of Ventilation
The body maintains ventilation by monitoring levels of carbon dioxide (CO2), oxygen (O2), and hydrogen ion concentration (pH) in the arterial blood. Among these factors, the level of CO2 plays a crucial...
5.8K
01:23Acute Respiratory Failure-IV
499
Respiratory failure can manifest suddenly or gradually, characterized by a rapid decline in PaO2 and a rapid rise in PaCO2. This situation indicates a severe respiratory problem that may quickly become a life-threatening emergency. One of the early signs of hypoxemic Acute Respiratory Failure (ARF) is a change in mental status due to the brain's sensitivity to oxygen levels and changes in acid-base balance. Symptoms such as restlessness, confusion, and agitation suggest inadequate oxygen...
499
01:19Respiratory Assessment: Purpose and Indications
1.7K
Respiratory assessment is a cornerstone of nursing assessments, crucial for the early detection of patient deterioration. This evaluation transcends routine procedures, representing a critical skill nurses must master to ensure optimal patient care.
Objectives and Importance:
The primary goal of respiratory assessment is to evaluate patients at early risk of clinical deterioration. Since respiratory distress often precedes other signs of declining health, breathing patterns and sounds become a...
Objectives and Importance:
The primary goal of respiratory assessment is to evaluate patients at early risk of clinical deterioration. Since respiratory distress often precedes other signs of declining health, breathing patterns and sounds become a...
1.7K
01:19Special considerations while measuring oxygen saturation
891
Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
891
01:16Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure
578
Oxygen therapy has emerged as a significant tool in enhancing the quality of life for patients suffering from pulmonary arterial hypertension (PAH). While this therapy has principally been studied on patients with significant hypoxemia, this therapeutic approach helps prevent potential organ damage and can be administered in the comfort of one's home.
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue,...
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue,...
578
01:21Acute Respiratory Failure-II
1.0K
Type I Respiratory Failure, or hypoxemic respiratory failure, occurs when the partial pressure of oxygen (PaO2) in arterial blood falls below 60 mmHg while breathing room air without a corresponding increase in arterial carbon dioxide levels (PaCO2). This condition highlights a significant impairment in the lungs' capacity to oxygenate the blood.
The underlying physiological abnormalities that contribute to hypoxemic respiratory failure include:
The underlying physiological abnormalities that contribute to hypoxemic respiratory failure include:
1.0K