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 .
A randomized study comparing triptorelin or expectant management following conservative laparoscopic surgery for symptomatic stage III-IV endometriosis.
OBJECTIVE To investigate the role of adjuvant treatment with gonadotropin-releasing-hormone agonist ( GnRHa ) following conservative surgical treatment of endometriosis . STUDY DESIGN Sixty patients in the reproductive age ( mean age 28.6 years ) , with symptomatic stages III and IV endometriosis following laparoscopic surgery and without previous hormonal treatment were enrolled in a prospect i ve , r and omized , controlled trial to compare the effects of 3-month treatment with triptorelin depot-3.75 i.m . ( 30 patients ) versus expectant management using placebo injection ( 30 patients ) . RESULTS Six patients ( one in triptorelin group and five in placebo group ) were lost at follow-up , the remaining 54 were suitable for analysis . Pelvic pain persistence or recurrence , endometrioma relapses and pregnancy rate were evaluated during a 5-year follow-up . The results of 29 cases treated with triptorelin and 25 that received placebo did not show significant differences in pain recurrence ( P=1 , RR=0.94 , 95 % CI=0.57 - 1.55 ) , endometrioma relapse ( P=0.67 , RR=1.29 , 95 % CI=0.66 - 2.50 ) , and pregnancy rate in  infertile women  ( P=0.80 , RR=0.81 , 95 % CI=0.37 - 1.80 ) . Curves of time of pain recurrence and pregnancy during 5-year follow-up did not show significant differences between the two groups ( P=0.79 and P=0.51 , respectively , using Mantel-Haenzsel logrank test ) . CONCLUSION Triptorelin treatment after operative laparoscopy for stage III/IV endometriosis does not appear to be superior to expectant management in terms of prevention of symptoms recurrence and endometrioma relapse , and has no influence on pregnancy rate in endometriosis-associated infertility
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 .