The patients perspective of extracorporeal shock wave lithotripsy.

We studied the effect of a single analgesic regime for outpatient lithotripsy on the patient's perception of pain and the disruption of their normal activities by sending a postal questionnaire to 200 patients. Results showed that 15% of patients received insufficient analgesia during ESWL, 25% considered treatment painful, 6.8% had side effects from analgesia, 18% had delayed return to their normal activities and 33% contacted their doctor within a week of lithotripsy with problems related to it. This study shows that analgesic requirements of patients treated with modern lithotriptors are underestimated. This can be avoided by tailoring analgesia to individual needs and better patient communication.