SA nodal artery comes from right coronary or left circumflex. Is there any clinical impact?
Would the origin affect physiology in any way? Might the location of the nodal artery affect heart valve surgeries?
Most articles on variations and origin of the nodal arteries all end with "this is of importance to radiologists, cardio-thorax surgeons and anatomists" - why?
The origin and course of the SA node artery is of importance in mitral valve surgery.
The SA node artery is frequently divided if using a superior septal approach. This causes a loss of normal sinus rhythm. Initially a new low atrial rhythm (slower than normal sinus rhythm) appears after surgery. In general sinus rhythm appears again after the third postoperative month.
This may be of interest in patients critically dependent on their sinus rhythm.
Thank you very much sir, is there any articles/written literature you might be able to provide?
There is some evidence on pubmed. Have a look for superior septal approach and rhythm disturbance
Percutaneous coronary intervention on the side of origin of SA node artery require more cautious approach and preventive temporary pacemaker implantation, for the risk of asystole during the procedures.
Superior septal approach to mitral valve is directly related with the loss of normal sinus rhythm because of the section of the sinus node artery.
Thank you so much, I would like to include these possible implications of surgery close to/near the nodal artery as an clinical impact as to why my protocol on the origin of the nodal arteries carry some clinical significance, can any of you maybe lead me to sources?
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