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Related Concept Videos

Peripheral Artery Disease I: Introduction01:30

Peripheral Artery Disease I: Introduction

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

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation

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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...
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Peripheral Artery Disease IV: Nursing Management01:26

Peripheral Artery Disease IV: Nursing Management

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 The nursing management of a patient with peripheral artery disease (PAD) begins with a thorough assessment of the patient’s health history and clinical manifestations.AssessmentHealth History: Evaluate the patient’s history of hypertension, hyperlipidemia, family history of cardiovascular issues, and lifestyle factors such as dietary patterns, smoking, and physical activity.Physical Examination:Assess the affected extremity for decreased or absent peripheral pulses,...
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Peripheral Artery Disease III: Interprofessional Care01:27

Peripheral Artery Disease III: Interprofessional Care

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

Atherosclerosis II: Clinical Manifestations and Diagnostic Tests

784
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)...
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Decrease in circulating dendritic cell precursors in patients with peripheral artery disease.

Daniel Kretzschmar1, Ilonka Rohm1, Sebastian Schäller1

  • 1Department of Internal Medicine I, Jena University Hospital, Friedrich-Schiller-University Jena, Erlanger Allee 101, 07740 Jena, Germany.

Mediators of Inflammation
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Summary
This summary is machine-generated.

Peripheral artery disease (PAD) is linked to reduced dendritic cells (DCs) in the blood. These cells are found in higher numbers within atherosclerotic plaques, suggesting their migration contributes to PAD progression.

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Area of Science:

  • Immunology
  • Cardiovascular Medicine
  • Atherosclerosis Research

Background:

  • Peripheral artery disease (PAD) is a manifestation of atherosclerosis, where inflammation plays a key role in its development and progression.
  • Dendritic cells (DCs), crucial antigen-presenting cells, are implicated in immune system regulation and inflammatory responses.

Purpose of the Study:

  • To investigate the hypothesis that dendritic cells (DCs) are reduced in the blood of PAD patients due to recruitment into vascular walls.
  • To explore the potential role of DCs in inducing a pro-inflammatory response in PAD.

Main Methods:

  • Flow cytometry was used to quantify myeloid DCs (mDCs), plasmacytoid DCs (pDCs), and total DCs (tDCs) in the blood of PAD patients (n=52) and controls (n=60).
  • Immunohistochemistry was performed on femoral plaques (n=12) from PAD patients to identify and quantify specific DC subsets and markers (CD209, CD83, CD304, CD123, HLA-DR).

Main Results:

  • A significant reduction in mDCs, pDCs, and tDCs was observed in the blood of PAD patients compared to controls.
  • Immunostaining revealed significantly elevated levels of mDC markers (CD209, CD83) in femoral plaques of PAD patients.
  • These findings suggest a migration of DCs from the bloodstream into atherosclerotic lesions.

Conclusions:

  • This study demonstrates for the first time a significant decrease in mDCs, pDCs, and tDCs in patients with PAD.
  • The observed reduction in circulating DCs is likely attributed to their recruitment into atherosclerotic plaques, contributing to the inflammatory process in PAD.