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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 IV: Nursing Management01:26

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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 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 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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Mechanistic Models: Compartment Models in Individual and Population Analysis01:23

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Mechanistic models are utilized in individual analysis using single-source data, but imperfections arise due to data collection errors, preventing perfect prediction of observed data. The mathematical equation involves known values (Xi), observed concentrations (Ci), measurement errors (εi), model parameters (ϕj), and the related function (ƒi) for i number of values. Different least-squares metrics quantify differences between predicted and observed values. The ordinary least...
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A Prediction Model for the Peripheral Arterial Disease Using NHANES Data.

Yang Zhang1, Jinxing Huang, Ping Wang

  • 1From the Department of Anesthesiology (YZ), Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang; Department of Cardiology (JH), The National Hospital of Enshi Autonomous Prefecture, Enshi, P. R. China; and Department of Cardiology (PW), Wendeng Central Hospital of Weihai, Wendeng, P. R. China.

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Summary

This study developed a peripheral arterial disease (PAD) risk prediction model using NHANES data. The model, incorporating age, race, sex, pulse pressure, cholesterol, and smoking, showed moderate predictive usefulness in the US general population.

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Area of Science:

  • Cardiovascular epidemiology
  • Biostatistics
  • Public health

Background:

  • Peripheral arterial disease (PAD) is a significant vascular condition.
  • Accurate risk prediction models are crucial for early detection and intervention.
  • Existing models may require validation in diverse populations.

Purpose of the Study:

  • To develop and validate a predictive model for peripheral arterial disease (PAD) risk.
  • To identify key demographic and clinical factors associated with PAD.
  • To assess the model's performance in the general US population.

Main Methods:

  • Utilized data from the National Health and Nutrition Examination Surveys (NHANES) for model development (1999-2002) and external validation (2003-2004).
  • Employed multiple logistic regression for model construction, with variable selection via likelihood ratio tests.
  • Internal validation was performed using the bootstrap method.

Main Results:

  • The final PAD prediction model included age, race, sex, pulse pressure, total cholesterol to high-density lipoprotein ratio, and smoking status.
  • Key predictors demonstrated significant odds ratios: 10-year age increase (OR 2.00), 10 mmHg pulse pressure increase (OR 1.19), 1-unit TC:HDL ratio increase (OR 1.11), and current smoking (OR 1.61).
  • The model achieved good calibration with Area Under the Curve (AUC) values of 0.82 for training and 0.76 for validation datasets.

Conclusions:

  • The developed model demonstrates moderate usefulness for predicting PAD risk in the general US population.
  • Age, pulse pressure, cholesterol levels, and smoking are significant contributors to PAD risk.
  • Further refinement and prospective validation may enhance the model's clinical utility.