Smoking weakens the valve at the bottom of your esophagus and lets stomach acid back up into your esophagus which can, over time, change the cells of the esophagus to pre cancerous (Barrett's Esophagus with High Grade Dysplasia) which left untreated, can lead to esophageal cancer.
If you have heartburn often, please have it checked out and get under treatment. This type of cancer is one of the quickest and deadliest.
I don't know if they are cutting or burning this morning because they won't know until they get their camera down my throat to see how the last procedure worked..
No smoking in the OR :-)