心脏性休克时的血红蛋白:生存率越低,生存率就越差
Miloud Cherbi1,2, Bruno Levy3, Hamid Merdji4
1Intensive Cardiac Care Unit, University Hospital of Toulouse, Toulouse, France. cherbi.miloud@gmail.com.
Journal of intensive care
|June 23, 2025
概括
贫血显著增加心脏性休克 (CS) 患者的死亡率. 较低的血红蛋白水平与较高的短期和长期死亡率相关,这凸显了对输血策略的进一步研究的需要.
科学领域:
- 心脏病学 心脏病学
- 关键护理医学 关键护理医学
- 血液学 血液学 血液学
背景情况:
- 心脏性休克 (CS) 是一种具有高死亡率的危急疾病.
- 贫血对CS结果的影响在很大程度上仍未被探索.
- 这项研究调查了血红蛋白水平和CS患者的结果之间的关系.
研究的目的:
- 确定入院血红蛋白水平对心脏性休克患者短期和长期死亡率的影响.
- 分析贫血与脏置换疗法和血管压缩剂等干预措施的必要性之间的关联.
主要方法:
- 未来注册表 (FRENSHOCK) 包括来自49个中心的772名CS患者.
- 基于入院血红蛋白四分位数的一个月和一年死亡率的分析.
- 多变量考克斯回归以调整基线特征.
主要成果:
- 在754名患者中,47.9%患有贫血 (Hb <11.0 g/dL).
- 贫血 (最低四分位数) 与增加对替代疗法和上腺素的需求有关.
- 在1个月 (Ptrend=0.035) 和1年 (Ptrend<0.01) 的血红蛋白四分位数下降时,观察到所有原因死亡率上升的显著趋势.
- 与最高四分位数相比,Hb四分位数最低的患者的1个月死亡率是1.64倍,一年死亡率是2.53倍.
结论:
- 贫血在CS中普遍存在,并显著恶化短期和长期死亡率.
- 低血红蛋白对死亡率的负面影响在多变量分析中得到证实.
- 需要进一步的随机试验来阐明机制,并优化CS患有贫血的患者的输血战略.
相关概念视频
Oxygen Transport in the Blood
3.3K
Hemoglobin (Hb) is a crucial molecule in the human body, consisting of four polypeptide chains, each bound to an iron-containing heme group. This unique structure enables hemoglobin to bind to oxygen, with each molecule capable of combining with four molecules of oxygen, leading to rapid and reversible oxygen loading. When fully loaded with oxygen, it is called oxyhemoglobin, while hemoglobin that has released oxygen is called reduced hemoglobin or deoxyhemoglobin. As hemoglobin binds oxygen,...
3.3K
Blood Studies for Cardiovascular System I: Cardiac Biomarkers
353
Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
353
Blood Pressure Imbalances and Circulatory Shock
1.0K
Disorders affecting blood volume, vascular tone, or vascular function can disrupt vascular homeostasis, including conditions like hypertension, hemorrhage, and shock.
Blood Pressure: Hypertension and Hypotension
Normal blood pressure is 120/80 mm Hg. Elevated blood pressure is 120-129/under 80 mm Hg. Hypertension, warranting treatment at 130/80 mm Hg, is often asymptomatic and can lead to severe cardiovascular events, aneurysms, peripheral arterial disease, chronic renal disease, or cardiac...
Blood Pressure: Hypertension and Hypotension
Normal blood pressure is 120/80 mm Hg. Elevated blood pressure is 120-129/under 80 mm Hg. Hypertension, warranting treatment at 130/80 mm Hg, is often asymptomatic and can lead to severe cardiovascular events, aneurysms, peripheral arterial disease, chronic renal disease, or cardiac...
1.0K
Factors Affecting Erythropoiesis
3.7K
The cardiovascular system regulates the number of erythrocytes in the bloodstream to ensure optimal oxygen transport. It also prevents over-proliferation of these cells, which helps to maintain blood viscosity and flow rate.
Several factors influence the erythrocyte production rate, with tissue oxygen level being among the most critical. Intense exercise or high altitudes can cause tissue hypoxia, which triggers the kidneys to release more erythropoietin (EPO) into the bloodstream.
EPO then...
Several factors influence the erythrocyte production rate, with tissue oxygen level being among the most critical. Intense exercise or high altitudes can cause tissue hypoxia, which triggers the kidneys to release more erythropoietin (EPO) into the bloodstream.
EPO then...
3.7K
Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers
223
Cardiac biomarkers are critical in diagnosing, prognosing, and managing cardiovascular diseases. Routine measurement of specific biomarkers such as B-type natriuretic peptide (BNP), C-reactive protein (CRP), and homocysteine (Hcy) is common practice in clinical settings to evaluate heart function and predict cardiovascular events.
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
223
Hemoglobin
4.6K
Hemoglobin is a globular protein made up of four subunits. Two of these subunits are alpha chains, and the other two are beta chains. Each subunit contains a molecule of heme, which has an iron atom and can bind to oxygen. When an oxygen molecule binds to one heme group, it changes the shape of hemoglobin, making it easier for the other heme groups to bind oxygen as well.
When all four heme groups are bound to oxygen, the resulting molecule is called oxyhemoglobin. As a result, arterial blood...
When all four heme groups are bound to oxygen, the resulting molecule is called oxyhemoglobin. As a result, arterial blood...
4.6K


