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Related Concept Videos

ECG Interpretation of Arrhythmias I: Sinus Arrhythmias01:16

ECG Interpretation of Arrhythmias I: Sinus Arrhythmias

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Arrhythmias are disturbances in the heart's rhythm that lead to abnormal heartbeats. These irregularities can originate from different parts of the heart and are classified based on their origin and nature.
Types of Arrhythmias
Sinus Node Arrhythmias
Sinus Bradycardia: Originating from the sinoatrial (SA) node, sinus bradycardia involves slower impulses, resulting in a heart rate of less than 60 beats per minute (bpm). Causes include sleep, vagal stimulation, beta-blockers, hypothyroidism,...
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Ischemic Heart Disease: Overview01:17

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Ischemic heart disease occurs when the heart's blood supply dwindles, causing an ominous lack of oxygen and nutrients. This deficiency, stemming from reduced or obstructed blood flow, spells danger, leading to heart muscle damage and dysfunction.
Atherosclerosis, the primary malefactor, orchestrates this dangerous condition. It manifests as the accumulation of fatty deposits, akin to insidious plaques, within arterial walls. As time elapses, these plaques metamorphose, hardening and...
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Physiology of the Heart: The Cardiac Cycle01:18

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The cardiac cycle describes the events from one heartbeat to the next. It includes three main phases: diastole, atrial systole, and ventricular systole, all driven by changes in chamber pressures and the function of heart valves.
Diastole: The Relaxation Phase
During diastole, all four heart chambers relax. The atrioventricular (AV) valves open, and the semilunar valves close. This phase sees the lowest chamber pressures, promoting ventricular filling. Venous blood enters the heart through the...
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Coronary Circulation01:21

Coronary Circulation

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The heart, an organ critical to survival, gets nourishment not from the blood it pumps but from a separate circulation system known as coronary circulation. This is the shortest circulation in the body and is responsible for supplying the heart with the nutrients it needs to function effectively.
Coronary circulation begins at the base of the aorta, where two main arteries arise—the left and right coronary arteries. These arteries encircle the heart in the coronary sulcus and supply the...
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Related Experiment Video

Updated: Jun 1, 2025

Particle Image Velocimetry Investigation of Hemodynamics via Aortic Phantom
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Idiopathic Coronary Sinus Thrombosis.

Corbin Ho-Fung Mok1, Geri Ling-Na Wong1, Kent Chak-Yu So1

  • 1Division of Cardiology, Department of Medicine and Therapeutics, Prince of Wales Hospital, Hong Kong.

JACC. Case Reports
|January 17, 2025
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Summary

A giant coronary sinus with masses was discovered in a patient with acute coronary syndrome. Multimodality imaging is crucial for diagnosing coronary sinus enlargement and thrombosis.

Keywords:
PET-CTcoronary sinusechocardiographythrombosis

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Area of Science:

  • Cardiology
  • Medical Imaging
  • Diagnostic Medicine

Background:

  • Acute coronary syndrome necessitates thorough cardiac evaluation.
  • Coronary sinus abnormalities, including enlargement and thrombosis, can present diagnostic challenges.
  • Giant coronary sinus is a rare condition requiring specialized imaging.

Purpose of the Study:

  • To report a case of masses within a giant coronary sinus.
  • To emphasize the utility of multimodality imaging in diagnosing coronary sinus pathologies.
  • To outline a management approach for such cases.

Main Methods:

  • Transthoracic echocardiography was performed for initial evaluation.
  • Multimodality imaging techniques were employed for comprehensive assessment.
  • Diagnostic imaging focused on characterizing the masses and coronary sinus anatomy.

Main Results:

  • Echocardiography identified masses within a significantly enlarged coronary sinus.
  • The findings indicated potential coronary sinus thrombosis.
  • Multimodality imaging provided detailed anatomical and pathological information.

Conclusions:

  • Giant coronary sinus with intracoronary masses is a rare echocardiographic finding.
  • Multimodality imaging is essential for accurate diagnosis and management planning.
  • Prompt investigation and appropriate management are key in patients presenting with coronary sinus abnormalities.