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関連する概念動画

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation01:21

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation

34
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...
34
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests01:27

Atherosclerosis II: Clinical Manifestations and Diagnostic Tests

38
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)...
38
Peripheral Artery Disease V: Postoperative Nursing Management01:23

Peripheral Artery Disease V: Postoperative Nursing Management

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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...
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Peripheral Artery Disease I: Introduction01:30

Peripheral Artery Disease I: Introduction

32
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...
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Blood pressure measurement is a fundamental clinical procedure, providing crucial data for assessing cardiovascular health. Among the various sites for this measurement, the brachial and popliteal arteries are predominantly utilized due to their accessibility and the reliability of their readings. This lesson delves into the anatomical significance, methodology, and considerations of measuring blood pressure at these locations.
The Brachial Artery: Primary Site for Blood Pressure Measurement
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This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
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Updated: Sep 10, 2025

Author Spotlight: Enhancing Vascular Function and Physical Capacity in Cardiovascular Disease Through Novel Interventions and NIRS Technology
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周辺動脈疾患における近赤外線スペクトロスコーピーのパイロット研究:上肢と下肢を区別し,足首と腕指数との相関

Jéssica Braga Amorim1, Marina Dias Neto2, Sandra Magalhães1

  • 1RISE-Health, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal.

Microvascular research
|August 23, 2025
PubMed
まとめ

近赤外線光譜法 (NIRS) は,外周動脈疾患 (PAD) の患者の健康な上肢と不血性下肢を効果的に区別します. この非侵襲的なツールは PADの評価に有望であり,足首-腕指数 (ABI) のような既存の方法を補完します.

キーワード:
足首と腕の指数近赤外線スペクトル非侵襲的な診断外周動脈疾患血管の評価

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科学分野:

  • 血管医学
  • バイオメディカル光学
  • 医療診断

背景:

  • 周辺動脈疾患 (PAD) は,世界的な健康問題です.
  • 足首-腕指数 (ABI) のような現在の診断方法は,特に化した動脈では限界があります.
  • 近赤外線光譜法 (NIRS) は,PADの評価において未熟な可能性を持つ新興の非侵襲的技術です.

研究 の 目的:

  • PAD患者の非血栓性上肢と血栓性下肢を区別するためのNIRSを評価する.
  • NIRS測定値とABI値の相関性を評価する.
  • PADの補完的な診断ツールとしてNIRSを探求する.

主な方法:

  • PAD患者51人を対象とした観察的横断試験.
  • NIRS測定は,ポータブルスペクトロメーターを使用して,休息中の親指と幻覚から取られました.
  • ランダムフォレスト分類と間隔最小二乗 (iPLS) の回帰がデータ分析に使用されました.

主要な成果:

  • NIRSは,上肢と下肢を区別する強力な能力を示した (AUC = 0. 91).
  • 異なったNIRSパターンが非血栓性および血栓性四肢の間で特定されました.
  • NIRS と ABI の間にはわずかな相関関係 (R2 = 0. 167) がみられ,1429~1463 nm の間隔が最も情報的である.

結論:

  • NIRSは,PADの評価のための迅速で,ポータブルで,非侵襲的なツールとして重要な可能性を示しています.
  • NIRSはPAD患者の健康な肢と不血症の肢を効果的に区別することができます.
  • NIRSの臨床的有用性とPADの重度との相関を確立するために,さらなる研究が必要である.