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 .
Laparoscopic uterosacral ligament resection for dysmenorrhea associated with endometriosis: results of a randomized, controlled trial.
OBJECTIVE To evaluate the efficacy of laparoscopic resection of the uterosacral ligaments in women with endometriosis and predominantly midline dysmenorrhea . DESIGN R and omized controlled trial . SETTING Two academic departments . One hundred eighty patients undergoing operative laparoscopy as first-line therapy for stage I to IV symptomatic endometriosis . INTERVENTION(S ) Operative laparoscopy including uterosacral ligament resection or conservative surgery alone . MAIN OUTCOME MEASURE(S ) Proportion of women with recurrence of moderate or severe dysmenorrhea 1 year after surgery . RESULT ( S ) No complications occurred . Among the patients who were evaluable 1 year after operative laparoscopy , 23 of 78 ( 29 % ) women who had uterosacral ligament resection and 21 of 78 ( 27 % ) women who had conservative surgery only reported recurrent dysmenorrhea . The corresponding numbers of patients at 3 years were 21 of 59 ( 36 % ) women and 18 of 57 ( 32 % ) women , respectively . Time to recurrence was similar in the two groups . Pain was substantially reduced , and patients in both groups experienced similar and significant improvements in health-related quality of life , psychiatric profile , and sexual satisfaction . Overall , 68 of 90 ( 75 % ) patients in the uterosacral ligament resection group and 67 of 90 ( 74 % ) patients in the conservative surgery group were satisfied at 1 year . CONCLUSION ( S ) Addition of uterosacral ligament resection to conservative laparoscopic surgery for endometriosis did not reduce the medium- or long-term frequency and severity of recurrence of dysmenorrhea
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 .