Open Question: Have any of you had a lithotripsy?

My boyfriend has kidneys full of stones and has been recommended for a lithotripsy, however, he has a lot of other medical issues - he has Cystic Fibrosis - and we are nervous about the side effects: among his issues he has had pulmonary hypertension in the past and we dont want to risk hypertension or renal failure. But passing stones is terrible for him too and we dont know what to do. So, are there any healthcare providers out there who would like to weigh in? Also, I'd love to hear back from someone who has had a lithotripsy about their experience. As a side note - we cant modify his diet to avoid stones, its too important to keep his diet up to deal with his CF