Objective: To explore the clinical efficacy of acupoint catgut embedding therapy on chronic pelvic cavity pain syndrome differentiated as kidney deficiency and stagnation of damp heat, and explore the impacts on plasma P substance (SP), plasma beta-endorphin (β-EP).

Methods: One hundred and eighty cases were randomly divided into a catgut embedding group (90 cases) and a western medication group (90 cases). In the western medication group, tamsulosin capsules 0. 2 mg were prescribed for oral administration, once a day; indometacin sustained release tablets, 25 mg, three times a day. Totally, the oral administration for 8 weeks was required. In the catgut embedding group, the acupoint catgut embedding therapy was applied to Qugu (CV 2), Shenshu (BL 23), Zhibian (BL 54), Huiyin (CV 1) and Sanyinjiao (SP 6), once every two weeks; the treatment of 4 weeks made one session, and two sessions were required. Before and after treatment, TCM symptom score, NIH-CPSI (the National Institute of Health Chronic Prostatitis Symptom Index) score, lecithin body numbers in prostatic fluid, score in SAS (self-rating anxiety scale), score in SDS (self-rating depression scale), the levels of SP and β-EP, etc. were observed in the two groups, and the clinical efficacy was assessed in the two groups.

Results: (1) Ten cases were dropped in either group. The total effective rate was 91. 25% (73/80) in the catgut embedding group, higher than 78. 75% (63/80) in the western medication group (P<0. 05). (2) After treatment, TCM symptom score, total score in NIH-CPSI, pain score and the scores in SAS and SDS were all reduced as compared with those before treatment in the two groups (all P<0. 05). After treatment, TCM symptom score, total score and pain score in NIH-CPSI, and the scores in SAS and SDS in the catgut embedding group were both lower than those in the western medication group (all P<0. 05). (3) After treatment, the lecithin body numbers were both increased as compared with those before treatment in the two groups (both P<0. 05), and the result in the catgut embedding group was higher than that in the western medication group (P<0. 05). (4)After treatment, the SP level was lower than that before treatment in the two groups (both P<0. 05); the level of p-EP was increased as compared with that before treatment (both P<0. 05). The SP level in the catgut embedding group was lower than that in the western medication group (P<0. 05); the level of β-EP was higher than that in the western medication group (P<0. 05).

Conclusion: The acupoint catgut embedding therapy apparently relieves the clinical symptoms of chronic pelvic cavity pain syndrome differentiated as kidney deficiency and stagnation of damp heat as well as the condition of anxiety and depression, increases lecithin body numbers in prostatic fluid and β-EP level and reduces SP level.