関連する実験動画
Updated: Apr 9, 2026

05:41
Non-invasive Assessment of Microvascular and Endothelial Function
Published on: January 29, 2013
16.8K
血管撮影を受ける患者の周辺動脈の付随循環の直接的定量評価
Tobias Traupe1, Jana Ortmann, Michael Stoller
1Department of Cardiology, University Hospital, CH-3010 Bern, Switzerland.
Circulation
|July 3, 2013
まとめ
周辺動脈疾患の患者における付随フロー指数 (CFIp) の定量化により,適切な休息付随機能が,短い閉塞の間における不血症を予防することが明らかになった. しかし,演習では,需要と供給の不一致や盗難現象が明らかになった.
科学分野:
- 血管医学 血管医学とは
- ヘモダイナミクス (血動力学)
- 周回動脈疾患 周回動脈疾患
背景:
- 周辺動脈疾患 (PAD) は,下肢の付随動脈機能を定量化するための方法が欠けている.
- 付随機能の改善は,PAD患者にとって重要な戦略です.
研究 の 目的:
- PAD患者における下肢付近動脈機能の評価のための定量的な方法を開発し,検証する.
- 誘発性閉塞および運動中の不血症の症状と付随機能の相関を図る.
主な方法:
- 圧力/ドップラー線を組み合わせて,表面性股関節動脈における圧力誘導付随流量指数 (CFIp) を測定した.
- 静止状態と運動状態で測定されたディスタルオクラシブ圧力と足の指の酸素飽和度 (Sao2) です.
- 表面的な股関節動脈の気球閉塞を5〜10分間行いました.
主要な成果:
- 休息時のCFIpは,閉塞中に増加し,Sao2の減少と逆相関し,痛みのない期間と正相関した.
- 演習はCFIpの有意な減少につながり,需要と供給の不一致を示した.
- 患者の89%は,10分間の閉塞の間に不血症の症状を経験したが,CFIpは痛みのない期間を予測した.
結論:
- 休息中のCFIpは,補足機能を定量的に評価し,閉塞中の症状のない期間を予測します.
- CFIpの演習による減少は,需要の増加時の担保供給の制限を強調しています.
- この研究では,PADにおける担保機能の評価に役立つメトリックとしてCFIpが確立されています.
関連する概念動画
Assessment of the Cardiovascular System III: Palpation
1.6K
Palpation involves feeling the body to evaluate texture, size, consistency, and tenderness for assessing cardiovascular health. The following steps are organized in a head-to-toe order:
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...
1.6K
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests
775
Atherosclerosis is a progressive disorder that leads to the thickening and narrowing of arterial walls due to plaque buildup. This condition can cause various symptoms depending on the arteries affected:Coronary Artery Disease (CAD): This condition affects the coronary arteries and may lead to chest pain (angina), shortness of breath (dyspnea), heart attacks, and other heart disease symptoms.Cerebrovascular Disease: This affects blood flow to the brain, causing transient ischemic attacks (TIAs)...
775
Peripheral Artery Disease I: Introduction
639
Peripheral artery disease (PAD) predominantly results from atherosclerosis, which involves the accumulation of fatty deposits, or plaques, within the walls of arteries. This causes them to narrow and harden, significantly reducing blood flow. PAD predominantly affects the legs, particularly the arteries supplying the thighs and calves. In rare cases, it may involve other arteries, including those in the arms.Etiology of PAD:The principal cause of PAD is atherosclerosis, which results from fatty...
639
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
688
Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
688
Peripheral Artery Disease III: Interprofessional Care
598
Peripheral Artery Disease (PAD) is characterized by narrowed arteries that diminish blood flow to the extremities. Effective management of PAD requires an interprofessional approach involving various healthcare professionals. The critical aspects of interprofessional care for PAD patients focus on risk factor modification, drug therapy, exercise therapy, nutrition therapy, critical limb ischemia care, and interventional radiology and surgical procedures.The primary treatment goal for PAD...
598
Peripheral Artery Disease V: Postoperative Nursing Management
593
During the postoperative period, it is crucial to focus on maintaining circulation, identifying and managing potential complications, and planning for discharge.Nursing AssessmentVital signs monitoring: Regularly monitor vital signs, including blood pressure, heart rate, respiratory rate, and temperature, to detect early signs of complications such as bleeding and infection.Circulation assessment: Monitor pulses, perform Doppler assessments, and check capillary refill, color, temperature, and...
593

