Yeh, I think I'm trying to tease out the reasons for surgery. There could be good "clinical" grounds, eg pain, or is there a an increased risk of thrombo-embolitic events in pilots with venous deficiency? (I do not know the answer to that.)
What prompted the scan in the first place? Is there an alternative to surgery (support stockings??)
Sorry I'm not an expert, but it would certainly be worth exploring oher opinions, going armed with the right questions.