妇女突然心脏病死亡
M Anette E Haukilahti1, Lauri Holmström1, Juha Vähätalo1
1From Research Unit of Internal Medicine (M.A.E.H., L.H., J.V., T.K., J.T., J.P., H.H., M.J.J.), Medical Research Center Oulu, University of Oulu and University Hospital of Oulu, Finland.
Circulation
|February 20, 2019
概括
妇女的突然心脏死亡 (SCD) 通常发生在老年人群中,并没有缺血性原因. 虽然SCD的女性可能有正常的心电图,但他们也显示出更多的左心室缩标志物,表明复杂的风险因素.
科学领域:
- 心脏病学
- 病理学
- 医学研究
背景情况:
- 尽管心脏病管理方面取得了进展,但心脏病突发死亡 (SCD) 仍然是导致死亡的重要原因.
- 在女性中,SCD的风险概况和预防策略比男性少.
- 了解SCD的性别特异性机制和风险标志物对于改善结果至关重要.
研究的目的:
- 在大量患有SCD的女性中调查尸检结果和死亡原因.
- 为了比较女性和男性SCD的特征.
- 分析和分类与SCD相关的先前心电图 (ECG) 发现.
主要方法:
- 使用了来自Fingesture研究的数据,该研究收集了1998-2017年北芬兰的临床和尸检数据.
- 分析了5869名SCD患者的数据,重点是1101名患者 (25.3%的女性) 拥有可用的心电图.
- 在男性和女性SCD群体之间比较人口统计,尸检和心电图数据.
主要成果:
- 女性SCD受试者年龄大于男性 (70. 1岁).
- 缺血性心脏病是两性死亡的主要原因,但非缺血性原因在女性中更为普遍 (28.3%对24.3%).
- 女性心肌纤维化率较高,前期心电图正常,但心电图左心室缩标志物也较多.
结论:
- 女性在年龄较大时出现SCD,并且非缺血病因的可能性更高.
- 心肌纤维化在患有SCD的女性中发生率明显较高.
- 虽然SCD的女性可能呈现出正常的心电图,但特定的缩和复极异常更为常见,这表明了不同的风险概况.
相关概念视频
Autophagic Cell Death
4.5K
Christian de Duve discovered “autophagy,” a process in which cellular components are engulfed by membrane-bound organelles called autophagosomes. The autophagosomes then fuse with lysosomes to digest the enclosed contents. Autophagy is generally activated in cells to prevent cell death. However, cell death is triggered when the damage is beyond repair.
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and...
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and...
4.5K
Overview of Cell Death
9.8K
Cell death is an essential process where the body gets rid of old or damaged cells. Cell proliferation and death need to be balanced, as an imbalance between the two may lead to cancer or autoimmune diseases.
Cell death was observed in the early 19th century, but there was no experimental evidence to prove it. In 1842, Carl Vogt first discovered cell death in a metamorphic toad; however, it was not termed ‘cell death.’ Scientists discovered different cell death pathways only in the...
Cell death was observed in the early 19th century, but there was no experimental evidence to prove it. In 1842, Carl Vogt first discovered cell death in a metamorphic toad; however, it was not termed ‘cell death.’ Scientists discovered different cell death pathways only in the...
9.8K
Cardiac Output II: Effect of Stroke Volume on Cardiac Output
3.3K
Cardiac output (CO), the amount of blood the heart pumps per minute, is a parameter in cardiovascular physiology determined by stroke volume and heart rate. Stroke volume, the amount of blood pushed from one of the ventricles per heartbeat, is influenced by preload, afterload, and contractility.
Preload
Preload refers to the initial elongation of the cardiac myocytes before contraction and is related to the volume of blood filling the heart at the end of diastole, or end-diastolic volume. The...
Preload
Preload refers to the initial elongation of the cardiac myocytes before contraction and is related to the volume of blood filling the heart at the end of diastole, or end-diastolic volume. The...
3.3K
Cardiac Output I:Effect of Heart Rate on Cardiac Output
2.5K
Cardiac Output
Cardiac output (CO) refers to the total amount of blood ejected by one of the ventricles in liters per minute (L/min). In a resting adult, CO ranges from 5 to 6 L/min, adjusting according to the body's metabolic requirements.
Effect of Heart Rate on Cardiac Output
Cardiac output adapts to metabolic demands during stress, physical activity, or illness. The autonomic nervous system regulates heart rate via the sinoatrial node. The parasympathetic nervous system decreases heart...
Cardiac output (CO) refers to the total amount of blood ejected by one of the ventricles in liters per minute (L/min). In a resting adult, CO ranges from 5 to 6 L/min, adjusting according to the body's metabolic requirements.
Effect of Heart Rate on Cardiac Output
Cardiac output adapts to metabolic demands during stress, physical activity, or illness. The autonomic nervous system regulates heart rate via the sinoatrial node. The parasympathetic nervous system decreases heart...
2.5K
The Cardiac Cycle
98.1K
The heart beats rhythmically in a sequence called the cardiac cycle—a rapid coordination of contraction (systole) and relaxation (diastole).
The Process
Electrical signals—sent from the sinoatrial (SA) node in the right atrial wall to the atrioventricular (AV) node between the right atrium and right ventricle—cause both atria to simultaneously contract. When the signal reaches the AV node, it pauses for approximately a tenth of a second, allowing the atria to contract and...
The Process
Electrical signals—sent from the sinoatrial (SA) node in the right atrial wall to the atrioventricular (AV) node between the right atrium and right ventricle—cause both atria to simultaneously contract. When the signal reaches the AV node, it pauses for approximately a tenth of a second, allowing the atria to contract and...
98.1K
Cardiac Cycle
12.7K
The cardiac cycle refers to the sequence of events that occur in the heart from the beginning of one heartbeat to the next. It's characterized by alternating periods of contraction (systole) and relaxation (diastole) of the heart muscles.
During the cardiac cycle, blood flow through the heart is regulated entirely by changing pressure gradients. This sequence of events begins with the heart in a state of total relaxation, known as mid-to-late diastole, during which blood passively flows from...
During the cardiac cycle, blood flow through the heart is regulated entirely by changing pressure gradients. This sequence of events begins with the heart in a state of total relaxation, known as mid-to-late diastole, during which blood passively flows from...
12.7K


