相关实验视频
Updated: Jan 21, 2026
07:44
A Porcine Model of Acute Autologous Pulmonary Embolism
Published on: September 6, 2024
773
冲击指数和变体与急性肺栓塞死亡率的关联
Cameron P Upchurch1,2, Kristen Sanfilippo3, Daphne Lew4
1University of Vermont Larner College of Medicine, Department of Emergency Medicine, Burlington, Vermont.
The western journal of emergency medicine
|January 19, 2026
概括
根据年龄调整的冲击指数 (SI) 最好预测急诊室急性肺栓塞 (PE) 患者的死亡率. 这种易于获得的床边工具有助于风险分层,以更好地管理PE.
科学领域:
- 心脏病学 心脏病学
- 紧急医疗 紧急医疗
- 肺部医学 肺部医学
背景情况:
- 急性肺栓塞 (PE) 具有显著的发病率和死亡率风险.
- 目前对PE的风险分层工具缺乏对床边临床医生进行细粒度,患者特定的指标.
- 需要易于获得的指标来进一步分层PE风险并指导PE风险管理.
研究的目的:
- 评估早期急诊室 (ED) 对冲击指数 (SI) 和其变体的测量与急性PE患者30天死亡率之间的关联.
- 为了确定SI变体是否与现有的风险方案相比提供了更好的歧视效率.
主要方法:
- 一项观察性病例控制研究,涉及新诊断急性PE的成年患者,需要PE响应小组 (PERT) 激活.
- 根据SI (心率/心压) 和变体 (修改SI,SI/SpO2比,年龄调整SI,呼吸调整SI,双重产物) 评估30天住院死亡率.
- 使用接收器运行特征曲线 (AUC) 下的面积与sPESI和ESC风险图相比较SI变体的区分效率.
主要成果:
- 在121名患者中,9.9%的患者死亡. SI及其变体在幸存者和非幸存者之间显示出显著的差异 (P < .05).
- 经年龄调整的SI显示出死亡率的最高歧视效率 (AUC 0.82),其次是SI (AUC 0.78) 和SI/SpO2比率 (AUC 0.77).
- 简化肺栓塞严重性指数 (sPESI) 没有显示显著差异 (P = .30).
结论:
- 根据年龄调整的SI是预测急性PE患者的死亡率的一个非常有效的工具.
- 与sPESI相比,SI及其变体显示出更高的歧视效率.
- 对于PE预后和管理的年龄调整SI的临床实用性进行进一步的研究是有必要的.
更多相关视频
08:02Establishment of a Minimally Invasive Rat Model of Pulmonary Embolism Using Autologous Blood Clots
Published on: October 25, 2024
788
07:41Induction and Phenotyping of Acute Right Heart Failure in a Large Animal Model of Chronic Thromboembolic Pulmonary Hypertension
Published on: March 17, 2022
3.4K
相关概念视频
01:29Pulmonary Embolism I: Introduction
533
Pulmonary embolism (PE) occurs when a thrombus, fat or air embolus, amniotic fluid, or tumor tissue blocks one or more pulmonary arteries. These blockages originate in the venous system or the right side of the heart.EtiologyPE primarily arises from deep vein thrombosis (DVT) and other hypercoagulable states, such as inherited thrombophilias. Additional etiological factors include venous stasis, commonly seen in obesity, and endothelial injury from surgery and trauma. Less common causes include...
533
01:27Pulmonary Embolism III: Nursing Management
381
A pulmonary embolism occurs when a thrombus, amniotic fluid, tumor tissue, fat, or air embolus blocks one or more pulmonary arteries. Effective nursing management and patient education are crucial for improving outcomes and preventing recurrence.Nursing management starts with obtaining a comprehensive patient history, particularly noting any history of deep vein thrombosis (DVT). Assess for clinical manifestations, including dyspnea, chest pain, crackles, heart murmurs, and signs of right-sided...
381
01:29Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care
340
Diagnosing Pulmonary EmbolismDiagnosing pulmonary embolism (PE) involves clinical assessment and advanced imaging tests. The preferred diagnostic tool is the spiral (helical) CT scan or CT angiography (CTA), which uses intravenous contrast media to visualize the pulmonary vasculature and identify emboli.A ventilation-perfusion (V/Q) scan is an alternative for patients unable to receive contrast media. This scan includes both perfusion and ventilation scanning. Perfusion scanning involves...
340
02:30Histone Variants at the Centromere
5.0K
Histone variants are the histone proteins with structural and sequence variations. These variants may be regarded as “mutant” forms that replace their canonical histone counterparts in the nucleosomes. Specific post-translational modifications on the histone variants enable further chromatin complexity and regulate tissue-specific gene expression. The most common histone variants are from histone H2A, H2B, and linker histone H1 families. However, several variants of histone H3...
5.0K
01:16Shock Waves
2.5K
While deriving the Doppler formula for the observed frequency of a sound wave, it is assumed that the speed of sound in the medium is greater than the source's speed through it. When this condition is breached, a shock wave occurs.
When the source's speed approaches the speed of sound, constructive interference between successive wavefronts emitted by the source occurs immediately behind it. Initially, scientists believed that this constructive interference would result in such high...
When the source's speed approaches the speed of sound, constructive interference between successive wavefronts emitted by the source occurs immediately behind it. Initially, scientists believed that this constructive interference would result in such high...
2.5K
01:21Association Areas of the Cortex
9.0K
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
9.0K