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Related Concept Videos

Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations01:19

Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations

282
The pathophysiology of Acute Coronary Syndrome [ACD] involves several key processes:The main underlying cause of ACD is atherosclerosis, a chronic inflammatory disease characterized by the buildup of lipid-laden plaques within the coronary arteries.As the atherosclerotic plaque grows in the coronary artery, it may become unstable due to the formation of a lipid-rich core and a thin fibrous cap. Inflammatory cells within the plaque, such as macrophages, secrete enzymes that degrade the...
282
Acute Coronary Syndrome I: Introduction01:30

Acute Coronary Syndrome I: Introduction

548
Acute Coronary Syndrome (ACS) encompasses a spectrum of heart conditions caused by sudden obstruction of coronary arteries, typically resulting from the rupture of an atherosclerotic plaque and subsequent thrombus (blood clot) formation. This obstruction can lead to partial or complete blockage of blood flow, causing varying degrees of myocardial ischemia or infarction.ACS includes the following clinical entities:Unstable Angina (UA)Non-ST-Elevation Myocardial Infarction (NSTEMI)ST-Elevation...
548
Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies01:22

Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies

321
The key clinical manifestations of Rheumatic heart disease (RHD) include several distinct cardiac symptoms.Carditis, a hallmark of acute rheumatic fever, involves inflammation of the heart's endocardium, myocardium, and pericardium. Chronic RHD often results from recurrent episodes of carditis. Its symptoms include the following:Murmurs are caused by valvular damage, especially to the mitral and aortic valves. Mitral stenosis or regurgitation is common, with characteristic heart murmurs...
321
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias

339
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...
339
Endocarditis II: Clinical Features of Infective Endocarditis01:25

Endocarditis II: Clinical Features of Infective Endocarditis

261
Endocarditis can present various clinical features depending on the causative organism and the patient's underlying health conditions. Initially, the clinical features of infective endocarditis develop gradually, presenting with nonspecific symptoms that can be easily mistaken for other illnesses.General SymptomsEarly symptoms of infective endocarditis are fever, chills, weakness, malaise, fatigue, and weight loss. These symptoms reflect the systemic nature of the infection and the body's...
261
Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

134
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...
134

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Updated: Dec 18, 2025

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
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SARS-COV-2 Presenting as New Onset Atrial Fibrillation: A Case Report.

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  • 1Internal Medicine, Buffalo General Medical Center, University at Buffalo, Buffalo, USA.

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The novel coronavirus (SARS-CoV-2) presents with diverse symptoms beyond fever and cough. Healthcare providers must recognize varied clinical presentations for timely COVID-19 supportive care and improved patient outcomes.

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Area of Science:

  • Virology
  • Infectious Diseases
  • Public Health

Background:

  • The ongoing COVID-19 pandemic caused by SARS-CoV-2.
  • Understanding the full spectrum of SARS-CoV-2 clinical manifestations is crucial.

Observation:

  • Literature documents numerous presentations of SARS-CoV-2.
  • Common symptoms like fever, cough, and shortness of breath are not always present.
  • Absence of typical symptoms does not rule out COVID-19 infection.

Findings:

  • SARS-CoV-2 exhibits a wide range of clinical presentations.
  • Healthcare professionals need awareness of atypical symptomology.
  • Early recognition of diverse presentations is key.

Implications:

  • Informed healthcare professionals can ensure prompt supportive treatment.
  • Broader clinical awareness may lead to improved patient outcomes.
  • Continued research into SARS-CoV-2 presentations is warranted.