Hi
Just for future reference of anyone else who is interested in Scuba Diving on TKIs.
I'm on Dasatinib, current PCR 0.17% IS, Dx Feb 2012, stable blood counts, no complications.
Diving organisations seemed happy to accept two PADI medical Fit-To-Dive statements - one signed off by a CML specialist, the other by a Dive Specialist (in my case, the London Dive Chamber by Oliver Firth).
DAN Insurance was prepared to insure with Scuba Travel Insurance but excluded infections and barotrauma attributable to the CML or Dasatinib, in judging which they said they would use an expert to determine any causal link.
I have completed 50 dives in the last 2 months down to 30m but typically around 25m with no adverse effects at all, doing up to 4 dives per day for 6 consecutive days at an hour each, using Nitrox, and 2 dives a day using air. The first 2 dives were undertaken to about 15m with an instructor as a buddy to reduce risk, and all dives have been led by a dive master for safety.
As always, your mileage may vary, but after an intensive 2 months of diving, I have experienced no adverse effects, so if you're thinking of diving, I hope that helps.
Rod