纠正的QTc间隔结合热素值和急性缺血性中风死亡率
Sung-Ho Ahn1, Ji-Sung Lee2, Mi-Sook Yun3
1Department of Neurology, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Busan, Republic of Korea.
Frontiers in cardiovascular medicine
|October 12, 2023
概括
结合提升的热素 (ET) 和延长的心率校正的QT (PQTc) 间隔,可改善急性缺血性中风 (AIS) 患者长期死亡风险分层. 这种方法还有助于评估并发症负担和中风严重程度.
科学领域:
- 心脏病学 心脏病学
- 神经学 神经学
- 临床诊断 临床诊断 临床诊断
背景情况:
- 升高的热素 (ET) 和延长的心率校正的QT (PQTc) 间隔在急性缺血性中风 (AIS) 中很常见,并表明预后.
- 目前在AIS患者中使用这些标记物的风险分层方法在实践中具有挑战性.
研究的目的:
- 评估是否结合ET和PQTc间隔测量可以改善AIS患者的长期预后评估.
- 为了确定是否结合ET和PQTc间隔分析增强死亡风险分层,并有助于评估并发症负担和中风严重程度.
主要方法:
- 从2007年5月到2011年12月进行了一项前性观察研究.
- ET被定义为血清热血素-I ≥0.04 ng/ml,PQTc间隔被定义为性别特定的QTc间隔的最高三分之一 (男性≥469 ms或女性≥487 ms).
- 1668名AIS患者根据ET和PQTc间隔的组合被分为四组.
主要成果:
- 在33个月的中位随访期间,单独使用ET,单独使用PQTc间隔或两者都与增加全因死亡率有关.
- ET和PQTc间隔 (单独或组合) 与血管死亡有关,而单独的ET与非血管死亡有关.
- 伴随性疾病负担 (心房动,充血性心力衰竭) 和中风严重程度随着更高的热波宁值和QTc间隔而增加.
结论:
- 在AIS患者中结合ET和PQTc间隔测量显著提高了长期死亡风险分层.
- 这种综合方法提高了辨别并发症负担和中风严重程度的能力.
- 这些发现表明,用于管理AIS患者和预测结果的更精细的工具.
相关概念视频
01:30Acute Coronary Syndrome III: Diagnostic Studies
9
Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
9
01:28Acute Coronary Syndrome IV: Interprofessional Care
11
IntroductionThe management of Acute Coronary Syndrome (ACS) aims to minimize myocardial damage, preserve myocardial function, and prevent complications.Initial ManagementInpatient management involves continuous cardiac monitoring, preferably in an ICU, focusing on blood pressure, serum sodium, potassium, and creatinine levels, and urine output. Ongoing pharmacologic management is crucial for stabilizing the patient.Supplemental Oxygen: Administer supplemental oxygen if oxygen saturation is...
11
01:30Acute Coronary Syndrome I: Introduction
30
Acute Coronary Syndrome (ACS) encompasses a spectrum of heart conditions caused by sudden obstruction of coronary arteries, typically resulting from the rupture of an atherosclerotic plaque and subsequent thrombus (blood clot) formation. This obstruction can lead to partial or complete blockage of blood flow, causing varying degrees of myocardial ischemia or infarction.ACS includes the following clinical entities:Unstable Angina (UA)Non-ST-Elevation Myocardial Infarction (NSTEMI)ST-Elevation...
30
01:20Blood Studies for Cardiovascular System I: Cardiac Biomarkers
174
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...
174
01:26Acute Coronary Syndrome V: Nursing Management
16
Nursing Assessment:Nursing management of acute coronary syndrome (ACS) involves taking the patient's history, focusing on primary complaints such as chest pain, dyspnea, and excessive sweating (diaphoresis), as well as other symptoms like back or jaw pain, nausea, vomiting, palpitations, dizziness, and fatigue. The nurse also reviews the patient's history of cardiac events, risk factors such as hypertension, diabetes, smoking, family history, and current medications.In the objective assessment,...
16
01:19Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations
20
The pathophysiology of Acute Coronary Syndrome [ACD] involves several key processes:The main underlying cause of ACD is atherosclerosis, a chronic inflammatory disease characterized by the buildup of lipid-laden plaques within the coronary arteries.As the atherosclerotic plaque grows in the coronary artery, it may become unstable due to the formation of a lipid-rich core and a thin fibrous cap. Inflammatory cells within the plaque, such as macrophages, secrete enzymes that degrade the...
20