血压和中风复发之间的关系在内动脉狭窄症患者中
Tanya N Turan1, George Cotsonis, Michael J Lynn
1Emory University, Atlanta, GA, USA. tturan@emory.edu
Circulation
|May 23, 2007
概括
高血压增加了脑内缩患者中风的风险. 这项研究挑战了允许高血压预防低输液的常见做法,表明它实际上可能会增加中风风险.
科学领域:
- 神经学 神经学
- 心血管医学 心血管医学
- 脑卒中研究 脑卒中研究
背景情况:
- 临床医生经常在患有内狭窄症的患者中保持高血压,以防止低输液.
- 这种做法在降低中风风险方面的有效性仍在争论中.
研究的目的:
- 为了研究高血压与脑内缩症患者中风风险之间的关联.
- 为了确定血压升高是否能保护或增加这一群体中风风险.
主要方法:
- 分析了华法林-阿司匹林症状内疾病 (WASID) 试验中567名患者的数据.
- 基于平均压缩血压 (SBP) 和压缩血压 (DBP) 的缺血性中风和区域性中风的时间比较.
- 分析的分层根据狭窄的严重程度 (中度<70%与严重>=70%) 和位置.
主要成果:
- 缺血性中风风险在较高的平均SBP和DBP时显著增加,即使在调整风险因素后也是如此.
- 升高的SBP和DBP与狭窄血管区域内中风风险增加有关.
- 中度狭窄症患者的中风风险增加,SBP和DBP升高;严重狭窄症患者的DBP升高风险增加.
结论:
- 高血压与患有内狭窄症的患者中缺血性中风和领地性中风的风险增加有关.
- 这些发现与维持高血压在这个患者群体中的常见临床方法相矛盾.
- 结果强烈表明,在内狭窄症患者中不应维持血压升高.
更多相关视频
09:00Real-Time Monitoring and Modulation of Blood Pressure in a Rabbit Model of Ischemic Stroke
Published on: February 10, 2023
09:36A Magnetic Resonance Imaging-based Computational Protocol for Analysis of Plaque Morphology and Hemodynamics in Patients with Carotid Artery Stenosis
Published on: August 12, 2025
相关概念视频
Atherosclerosis IV: Nursing Management
Nursing management for a patient with arteriosclerosis involves a comprehensive approach focusing on lifestyle modification, disease monitoring, education, and symptomatic care. Here is an overview of effective nursing strategies:Assessment and Monitoring: Initial and ongoing assessments are crucial. Nurses must document the patient's medical history, including any hypertension, diabetes, hyperlipidemia, and other cardiovascular diseases. Assessments also cover family history and lifestyle...
Stroke: Introduction and Types
A stroke is an acute neurological event caused by the sudden disruption of cerebral blood flow, leading to rapid loss of neuronal function. Neurons depend on continuous oxygen and glucose supply, so even brief interruptions can cause irreversible injury within minutes. Strokes are classified into ischemic and hemorrhagic types.Ischemic StrokeIschemic strokes are most common and occur due to arterial occlusion, depriving brain tissue of oxygen and nutrients. This leads to energy failure, ionic...
Ischemic Stroke l: Introduction
Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.
Ischemic Stroke ll: Pathophysiology
An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...
Hemorrhagic Stroke l: Introduction
A hemorrhagic stroke is an acute neurological event that occurs when a weakened cerebral blood vessel ruptures, allowing blood to accumulate within or around the brain. The sudden release of blood forms a focal hematoma that increases intracranial pressure, displaces neural tissue, and can obstruct cerebrospinal fluid pathways. These effects may be compounded by intraventricular extension of the hemorrhage, cerebral edema, or compression of adjacent structures, all of which contribute to...
Hemorrhagic Stroke ll: Pathophysiology
A hemorrhagic stroke develops when a cerebral blood vessel ruptures, allowing blood to escape into the surrounding brain tissue, as in intracerebral hemorrhage (ICH), or into the subarachnoid space, as in subarachnoid hemorrhage (SAH). Because the skull is a rigid compartment, the sudden presence of extravascular blood rapidly increases intracranial pressure and compresses adjacent neural structures, leading to immediate tissue injury and impaired cerebral perfusion.Mass Effect and Primary...
