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Dysrhythmias, also known as arrhythmias, are disturbances in the heart's rhythm that range from benign to life-threatening. A thorough evaluation is crucial for appropriate management and involves a comprehensive medical history, physical examination, and various diagnostic tests.Medical HistorySymptoms: Collect detailed information on palpitations, dizziness, syncope, chest pain, and fatigue. Note their onset, frequency, and triggers.Previous Cardiac Issues: Document any history of heart...
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Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
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Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
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Effective preventive measures for coronary artery disease (CAD) focus on controlling modifiable risk factors, including cholesterol abnormalities and lifestyle changes.Cholesterol ManagementFirst, the Mediterranean diet and the American Heart Association advocate for maintaining low-density lipoprotein (LDL) cholesterol levels below 100 mg/dL, with a more stringent recommendation of below 70 mg/dL for individuals at high risk. LDL cholesterol, often termed "bad cholesterol," can lead to the...
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Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): This...
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Atrial Fibrillation Population Screening.

Henri Gruwez1, Tine Proesmans2, Stijn Evens2

  • 1Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium; Doctoral School of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium; Cardiology Department, Ziekenhuis Oost-Limburg, Schiepse Bos 6, 3600 Genk, Belgium; Cardiology, University hospitals Leuven Herestraat 49, 3000 Leuven, Belgium.

Cardiac Electrophysiology Clinics
|July 31, 2021
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Summary

Screening for atrial fibrillation (AF) can detect asymptomatic cases early. Longer, frequent screening in high-risk individuals using new devices improves diagnostic yield and cost-effectiveness for subclinical AF.

Keywords:
Atrial fibrillationElectrocardiogramPhotoplethysmographyScreeningStroke

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Area of Science:

  • Cardiology
  • Medical Devices
  • Public Health

Background:

  • Atrial fibrillation (AF) is linked to poor health outcomes.
  • Early detection of asymptomatic AF through screening may improve patient prognosis.
  • Current evidence for AF primarily concerns symptomatic or electrocardiographically diagnosed cases, leaving the applicability to subclinical AF uncertain.

Purpose of the Study:

  • To evaluate the effectiveness of screening for detecting subclinical atrial fibrillation.
  • To determine factors influencing the diagnostic yield of AF screening.
  • To assess the potential of novel screening devices for AF detection.

Main Methods:

  • Investigated the impact of screening population characteristics, tools, duration, and frequency on diagnostic yield.
  • Considered new screening devices utilizing photoplethysmography and single-lead electrocardiography.
  • Analyzed the translation of existing AF evidence to subclinical AF detection.

Main Results:

  • Screening effectiveness is significantly influenced by the screening population, tool, duration, and frequency.
  • Longer and more frequent screening, particularly in high-risk populations, enhances diagnostic yield.
  • Novel devices offer increased convenience and potential cost-effectiveness for AF screening.

Conclusions:

  • Screening strategies, especially prolonged and frequent monitoring in high-risk groups, can effectively identify subclinical atrial fibrillation.
  • Emerging technologies like photoplethysmography and single-lead ECG enhance the feasibility and cost-effectiveness of AF screening.
  • Further research is needed to fully translate evidence from clinical AF to subclinical AF detected by novel devices.