Cheltenham Gold Cup winner Denman is due at Rossdales veterinary surgery in Newmarket on Monday, where he is expected to undergo treatment for an irregular heartbeat.
Trainer Paul Nicholls reported: "All they're doing is examining him ' if they have to do anything corrective they will do it later in the week."
Might be worth starting a thread on horses who have had wind ops if anyone knows of any others, as the improvement is often remarkable.