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 .
Long-Term Follow-Up of a Controlled Trial of Laser Laparoscopy for Pelvic Pain
Background and Objectives : The purpose of this study was to assess the long-term efficacy of laparoscopic laser surgery in the treatment of  painful pelvic endometriosis .  Methods : We conducted a long-term follow-up of 56 patients who had participated in a r and omized , double-blind controlled study at a tertiary referral center for the laparoscopic treatment of endometriosis . The patients had pelvic pain , minimal-to-moderate endometriosis , and underwent laser laparoscopy .  We asked patients whether they had now achieved satisfactory symptom relief or whether they had received any further medical intervention for their endometriosis . The main outcome measure was continued symptom relief after treatment and subsequent medical history . Results : Of the original 56 patients , we were able to contact 38 ( 67.9 % ) . The mean ( range ) time since operation was 73 months . Painful symptoms had recurred in 28/38 ( 73.7 % ) patients at some point since their operation . The median ( range ) time for recurrence was 19.7 ( 5 - 60 ) months . At the time of follow-up , satisfactory symptom relief was reported in 21/38 ( 55.3 % ) patients . The remaining 17/38 ( 44.7 % ) patients continued to experience painful symptoms , and eight eventually had a hysterectomy . Conclusions : This study suggests that operative laparoscopy can have long-term benefits for the majority of women with pelvic pain due to endometriosis , but because of the small numbers , this study lacks the power to demonstrate this conclusively
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 .