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Related Concept Videos

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 I: Introduction01:30

Peripheral Artery Disease I: Introduction

15
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 but also impacts other areas, such as the arms, thereby impairing overall circulation and organ function.Etiology of PAD:The principal cause of PAD is atherosclerosis, which results from fatty deposits inside the arterial...
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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,...
19
Peripheral Artery Disease V: Postoperative Nursing Management01:23

Peripheral Artery Disease V: Postoperative Nursing Management

16
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...
16
Peripheral Artery Disease III: Interprofessional Care01:27

Peripheral Artery Disease III: Interprofessional Care

17
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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Varicose Veins I: Introduction01:26

Varicose Veins I: Introduction

20
Varicose veins, or varicosities, are abnormally dilated and twisted superficial veins caused by venous valve incompetence. This condition commonly affects the lower extremities, especially the saphenous veins, due to the higher pressure from prolonged standing and walking. However, varicosities can also occur in other areas, such as the esophagus, vulva, spermatic cords, and anorectal region.Etiology and typesPrimary varicose veins, often idiopathic, are more common in women due to inherent...
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Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication
14:52

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Prolonged sitting and peripheral vascular function: potential mechanisms and methodological considerations.

Elizabeth J Pekas1, Michael F Allen1, Song-Young Park1

  • 1School of Health and Kinesiology, University of Nebraska at Omaha, Omaha, Nebraska, United States.

Journal of Applied Physiology (Bethesda, Md. : 1985)
|February 16, 2023
PubMed
Summary
This summary is machine-generated.

Prolonged sitting increases cardiovascular disease risk by disrupting vascular function. This review explores mechanisms and targeted interventions, like muscular contractions, to mitigate these risks and prevent atherosclerosis.

Keywords:
macrovascular functionmicrocirculationperipheral arterial diseaseprolonged sittingshear stress

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Area of Science:

  • Cardiovascular Physiology
  • Vascular Biology
  • Exercise Science

Background:

  • Sedentary behavior, specifically prolonged sitting, is linked to increased risks of subclinical atherosclerosis and cardiovascular disease.
  • These risks are hypothesized to stem from sitting-induced disruptions in macrovascular and microvascular function, alongside molecular imbalances.
  • The precise mechanisms underlying these sitting-induced vascular perturbations remain largely unidentified.

Purpose of the Study:

  • To review the evidence for potential mechanisms behind sitting-induced disturbances in peripheral hemodynamics and vascular function.
  • To explore how active and passive muscular contraction methods can target these mechanisms.
  • To identify considerations for future research, including experimental environment and population factors.

Main Methods:

  • Literature review synthesizing current evidence on sedentary behavior and vascular function.
  • Discussion of proposed molecular and hemodynamic pathways affected by prolonged sitting.
  • Analysis of potential therapeutic strategies involving muscular contractions.

Main Results:

  • Sitting may induce proatherogenic changes through alterations in vascular tone, endothelial function, and metabolic pathways.
  • Both active and passive muscular contractions show potential for counteracting sitting-induced vascular dysfunction.
  • Experimental design and participant characteristics are crucial for accurate investigation of sedentary behavior effects.

Conclusions:

  • Understanding the mechanisms of sitting-induced vascular dysfunction is key to developing effective interventions.
  • Targeting peripheral hemodynamics and molecular imbalances via muscular contractions may help mitigate cardiovascular disease risk.
  • Future research should focus on optimizing study designs to better elucidate the impact of prolonged sitting and inform preventative strategies.