Which of the following is NOT a complication of AF ablation?

Hypoglycemia is not a recognized complication of atrial fibrillation (AF) ablation procedures. The primary focus of AF ablation is to address the electrical issues in the heart that lead to the condition, and while numerous potential complications can arise due to the nature of the procedure, hypoglycemia is related to metabolic or endocrine issues rather than the direct effects of the ablation itself.

In contrast, pulmonary vein (PV) stenosis is a known complication that can occur after ablation, particularly when the procedure involves the manipulation of the pulmonary veins. This complication arises from scarring or narrowing of the veins, which can lead to significant issues.

Air embolism is another serious potential complication. It can occur when air enters the circulation during the procedure, potentially leading to stroke or myocardial infarction. The risk is associated with catheter manipulation and access sites during the ablation.

Coronary artery spasms are also a known risk associated with the manipulation of the heart's electrical system during ablation. This can lead to ischemia and chest pain, resulting from temporary constriction of the coronary arteries.

Overall, hypoglycemia does not fall within the typical complications associated with AF ablation, setting it apart from the other options presented.