Abstract
The sinus node artery (SNA) arises from the right coronary artery in near 60% of the cases and from the left circumflex artery in the remaining ones. We described the case of a patient in whom the SNA took off from the proximal part of the left main trunk. A 59 year-old male underwent coronary arteriography because of unstable angina. Soon after the incannulation of the left coronary ostium with a 7F catheter critical bradycardia ensued without ECG changes of ischemia. The arrhythmia spontaneously reverted by removing the catheter. Further contrast injections were carried out with a smaller diagnostic catheter (5F); the left main trunk was normal with the SNA arising from the very proximal part of it. It is likely that the heart rate slowing was elicited by a temporary occlusion (and related ischemia) of the anomalous SNA by the diagnostic catheter. This anomaly may therefore provoked heart arrhythmias during diagnostic or interventional procedures.
| Translated title of the contribution | Anomalous origin of the sinus node artery from the left main trunk: a potential cause of iatrogenic hypokinetic arrhythmia |
|---|---|
| Original language | Italian |
| Pages (from-to) | 89-91 |
| Number of pages | 3 |
| Journal | Cardiologia |
| Volume | 43 |
| Issue number | 1 |
| Publication status | Published - Jan 1998 |
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine