Related Experiment Video

Updated: Jun 23, 2026

Coronary Angiography During Ex-Situ Heart Perfusion in a Porcine Model
06:25

Coronary Angiography During Ex-Situ Heart Perfusion in a Porcine Model

Published on: July 12, 2024

Incidental Coronary Sinus Stenosis During Coronary Angiography: A Rare Angiographic Finding

Nazanin Alaei Faradonbeh1, Ehsan Khalilipur2, Mobina Yarahmadi3

  • 1Department of Emergency Medicine School of Medicine, Iran University of Medical Sciences, Tehran, Iran, iums.ac.ir.

Case Reports in Cardiology
|June 22, 2026
PubMed

Insights

Severe coronary sinus stenosis, a rare cardiac condition, can cause serious hemodynamic issues. Prompt identification during angiography is crucial for managing patients with heart failure symptoms and improving outcomes.

Area of Science:

  • Cardiology
  • Vascular Medicine
  • Cardiac Imaging

Background:

  • The coronary sinus (CS) is a primary cardiac venous drainage route, rarely associated with significant pathology.
  • CS obstruction can precipitate severe hemodynamic compromise and increase mortality risk if not rapidly diagnosed.

Purpose of the Study:

  • To report a case of incidentally discovered severe coronary sinus stenosis during coronary angiography.
  • To emphasize the importance of recognizing rare CS abnormalities in clinical practice.

Main Methods:

  • Diagnostic coronary angiography was performed on a patient presenting with chest pain and dyspnea.
  • The patient had a history of Type 2 diabetes mellitus and was on chronic hemodialysis.
  • Management involved optimizing volume status via hemodialysis and guideline-directed heart failure therapy.

Main Results:

  • Severe stenosis of the coronary sinus was incidentally identified during angiography.
  • The patient exhibited elevated left ventricular end-diastolic pressure (LVEDP) and diffuse coronary artery disease.
  • Following management, the patient experienced improvement in symptoms and hemodynamic parameters.

Conclusions:

  • This case underscores the need to recognize uncommon coronary sinus abnormalities during cardiac procedures.
  • While the clinical impact of incidental CS stenosis is not fully established, it may warrant further investigation in specific patient cohorts.
Abstract

Keywords:
angiographycoronary sinusheart failureleft ventricular end-diastolic pressureobstruction

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