RESULTS The instruments most frequently used were single-item VAS and Biberoglu and Behrman pain score , while multidimensional inventories were used in few studies .
The results of clinical studies in CPP are more frequently based on one-dimensional measurements .
RATIONALE Many types of  pain assessment are available to research ers carrying out clinical trials in chronic pelvic pain ( CPP ) , ranging from a single-item scale to multidimensional inventories .
AIM Our objective was to investigate which assessment s of pain are more commonly used in clinical trials on CPP .
Follow-up report on a randomized controlled trial of laser laparoscopy in the treatment of pelvic pain associated with minimal to moderate endometriosis.
OBJECTIVE To assess the longer term efficacy of laparoscopic laser surgery in the treatment of painful pelvic endometriosis and to observe the natural history of the disease at second-look laparoscopy in a control group . DESIGN One-year follow-up of a prospect i ve , r and omized , double-blind controlled trial . SETTING A referral center for the laparoscopic laser treatment of endometriosis . PATIENT(S ) Sixty-three patients with pelvic pain and minimal to moderate endometriosis . INTERVENTION(S ) After the 6-month follow-up visit , the r and omization code was broken , and follow-up was continued to 1 year . Symptomatic patients were offered second-look laser laparoscopy . MAIN OUTCOME MEASURE(S ) Continued symptom relief at 1 year after treatment and findings at second-look laparoscopy in symptomatic controls . RESULT ( S ) Symptom relief continued at 1 year in 90 % of those who initially responded . All symptomatic controls had a second-look procedure , with 7 ( 29 % ) showing disease progression , 7 ( 29 % ) showing disease regression , and 10 ( 42 % ) having static disease . CONCLUSION ( S ) The benefits of laser laparoscopy for painful pelvic endometriosis are continued in the majority of patients at 1 year . Untreated painful endometriosis will progress or remain static in the majority of patients but will spontaneously improve in others
RESULTS The instruments most frequently used were single-item VAS and Biberoglu and Behrman pain score , while multidimensional inventories were used in few studies .
The results of clinical studies in CPP are more frequently based on one-dimensional measurements .
RATIONALE Many types of  pain assessment are available to research ers carrying out clinical trials in chronic pelvic pain ( CPP ) , ranging from a single-item scale to multidimensional inventories .
AIM Our objective was to investigate which assessment s of pain are more commonly used in clinical trials on CPP .