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Related Concept Videos

Mitral Valve Prolapse II: Assessment and Management01:22

Mitral Valve Prolapse II: Assessment and Management

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IntroductionA range of clinical features characterizes Mitral Valve Prolapse (MVP), but it is important to note that many individuals with MVP are asymptomatic and may remain so throughout their lives. For those who do exhibit symptoms, the following are the key clinical features:Palpitations: This is a common symptom where individuals feel an irregular or rapid heartbeat. Palpitations in MVP are often due to arrhythmias such as premature ventricular contractions or supraventricular...
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Dysrhythmias II: Classification of Tachyarrhythmias01:28

Dysrhythmias II: Classification of Tachyarrhythmias

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Tachyarrhythmias are a type of dysrhythmia where the heart rate exceeds 100 beats per minute. Here are some common types of tachyarrhythmias:Sinus TachycardiaSinus tachycardia originates from increased impulses from the sinus node, leading to an elevated heart rate. It is often triggered by stress, fever, or exercise.Patients may experience palpitations, a sensation of a racing heart, dizziness, and chest discomfort.Causes and Risk Factors: Common causes include physical exertion, emotional...
133
Mitral Stenosis II: Clinical features and Diagnostic Tests01:23

Mitral Stenosis II: Clinical features and Diagnostic Tests

32
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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ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

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

149
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...
149
Dysrhythmias IV: Characteristics of Bradyarrhythmias01:18

Dysrhythmias IV: Characteristics of Bradyarrhythmias

115
Bradyarrhythmias are cardiac rhythm disorders characterized by a slower-than-normal heart rate, typically defined as fewer than 60 beats per minute. Some of which are discussed here:Sinus BradycardiaSinus bradycardia presents a heart rate lower than 60 beats per minute, with a regular rhythm originating from the SA node. The ECG typically shows normal P waves preceding each QRS complex, a normal PR interval (0.12 to 0.20 seconds), and a normal QRS duration (0.06 to 0.10 seconds).First-Degree AV...
115
Mitral Regurgitation II: Clinical Features and Diagnostic Tests01:23

Mitral Regurgitation II: Clinical Features and Diagnostic Tests

45
Mitral regurgitation (MR) is a valvular heart disorder in which the mitral valve fails to close tightly, allowing blood to leak backward into the heart. Understanding the clinical manifestations, assessment, diagnostic findings, and medical management of MR is crucial to effectively managing affected patients.Clinical Manifestations of Mitral RegurgitationMitral regurgitation can be acute or chronic, each presenting differently and requiring different approaches:1. Acute Mitral...
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Related Experiment Video

Updated: Sep 2, 2025

Cox-Maze IV Procedure Concomitant with Valvular Surgery In Situs Inversus Dextrocardia: A Single-Center Experience in China
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Left Atrial Myxoma Presenting as Persistent Dizziness.

Hayder Azeez1, Zeinab A Abdulrahman1, Tien Nguyen2

  • 1Internal Medicine, Mather Hospital/Zucker School of Medicine/Northwell Health, Port Jefferson, USA.

Cureus
|August 1, 2022
PubMed
Summary

A 71-year-old woman experienced dizziness due to a left atrial myxoma, a type of cardiac tumor. Surgical removal confirmed the diagnosis, highlighting the importance of echocardiography in identifying cardiac masses.

Keywords:
atrial myxomadizzinessechocardiogramembolistroke

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Area of Science:

  • Cardiology
  • Oncology
  • Neurology

Background:

  • Cardiac masses, encompassing benign and malignant tumors, can lead to significant complications such as valvular obstruction and embolic events.
  • Understanding the etiology of cardiac masses is crucial for effective patient management and treatment strategies.
  • Echocardiography, combined with clinical assessment, is a primary diagnostic tool for evaluating cardiac masses.

Observation:

  • A 71-year-old female presented with acute-onset persistent dizziness.
  • Cerebral MRI revealed multiple small foci of acute infarction, suggesting an embolic source.
  • Transthoracic echocardiography identified a mass within the left atrium.

Findings:

  • Surgical excision of the left atrial mass was performed.
  • Histopathological analysis confirmed the tumor to be an atrial myxoma.
  • The patient's symptoms were attributed to embolization from the cardiac mass.

Implications:

  • This case underscores the diagnostic utility of echocardiography in identifying cardiac tumors causing embolic phenomena.
  • Atrial myxoma, though often benign, requires prompt diagnosis and surgical intervention to prevent potentially devastating embolic complications.
  • Integrated diagnostic approaches, combining imaging and clinical data, are essential for elucidating the cause of neurological events potentially linked to cardiac pathology.