由于脑内出血的过渡性神经缺陷:一个模仿过渡性缺血病发作的诊断陷
Indika Wettasinghe1,2, Asanka Ratnayake2, Suresh Mendis2
1Faculty of Medical Sciences, University of Sri Jayewardenepura, Colombo, LKA.
Cureus
|July 7, 2025
概括
脑内出血 (ICH) 可以模仿过渡性缺血性发作 (TIA) 带有暂时症状. 在抗血小板治疗之前,早期脑成像是至关重要的,以防止误诊并确保中风患者的正确治疗.
科学领域:
- 神经学 神经学
- 紧急医疗 紧急医疗
- 放射学 放射学是一门学科.
背景情况:
- 脑内出血 (ICH) 是一种严重的中风亚型,具有持续的缺陷,通常与暂时性缺血性发作 (TIA) 相比较.
- 由于资源有限,临床医生可能会在成像之前启动抗血小板治疗,可能会在TIA类ICH呈现时错误诊断.
- 仅仅在临床表现上区分TIA和ICH是一个诊断挑战.
研究的目的:
- 为了突出区分TIA和ICH的诊断挑战,仅基于临床表现.
- 强调在疑似TIA病例中,在没有先前脑成像的情况下启动抗血小板治疗的潜在风险.
- 在所有疑似TIA病例中提倡早期脑成像,以确保准确的诊断和管理.
主要方法:
- 一个64岁的男性患有高血压,出现过渡性神经缺陷的病例报告.
- 临床评估表明TIA,随后进行非对比计算机断层扫描 (CT) 脑部扫描.
- 对疑似TIA的诊断挑战和神经成像建议的审查.
主要成果:
- 患者的过渡性神经缺陷自发地消失,最初暗示TIA.
- 大脑CT显示右侧基底质中发生了小小的脑内出血,模仿TIA.
- 这一案例说明了ICH可以呈现过渡性症状,造成诊断困境.
结论:
- ICH可能不常见地表现为过渡性神经症状,与缺血事件非常相似.
- 在这种情况下,在没有成像的情况下启动抗血栓治疗,可能会导致血液瘤扩张的风险.
- 建议对所有疑似TIA患者进行早期脑成像,最好是在抗血小板治疗之前,以防止误诊和改善结果.
相关概念视频
01:29Stroke: 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...
01:15Ischemic 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.
01:15Ischemic 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...
01:17Hemorrhagic 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...
01:29Hemorrhagic 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...
01:26Transient Ischemic Attack l: Introduction
A transient ischemic attack (TIA) is a brief episode of neurological dysfunction caused by a temporary, focal reduction in cerebral blood flow. Although symptoms resemble those of an ischemic stroke, the interruption in perfusion is short-lived and does not cause permanent infarction. TIAs are clinically important because they often serve as early warning events for future stroke.Mechanisms of Transient Cerebral IschemiaTransient cerebral ischemia may arise through several mechanisms. One...