Travel while waiting?

Thank you. Yes, I suppose it is better to just get on with life and that is what my husband is doing, I'm the one fretting and trying to gather as much information as possible! His philosophy is that he will continue his job (which he loves) and we will have our normal life and not stress about the upcoming procedures and that we'll take it from there.

So my husband currently has a kidney stent (2.5 cm kidney stone, lithotripsy done yesterday) and is scheduled for a TURBT restaging on October 4th. Urothelial papillary carcinoma, high grade, T1 from last path report a few weeks ago. He is supposed to go to Europe on the 23rd for a week, doctor scheduled TURBT around his travel schedule. I am worried about him going. He is 71, very fit and still working 10 hour days (he's a university administrator). Definitely does not want to stop or slow down his travel/work schedule in any way. Doc says ok to travel. I'm not sure. He's on a few meds for kidney stone pain, low grade UTI. What are your thoughts? I am not able to go with him, can't leave work or our children (as I posted in a different post, we have an "age gap" marriage and have young children). Have your doctors said no to travel?