2014 年 23 巻 2 号 p. 129-138
Background and Aims: Vaginal relaxation syndrome (VRS) is both a physical and psychological problem for women and often their partners. Recently the 2940 nm Er:YAG laser has attracted attention for VRS treatment. The current study evaluated the clinical efficacy of this nonsurgical laser procedure.
Subjects and Methods: Thirty postpartum females with VRS or vaginal atrophy, ages from 33 . 56 yr (mean 41.7 yr) were divided randomly into two groups, Group A and Group B. Both groups were treated for 4 sessions at 1~2-weekly intervals with a 2940 nm Er:YAG via 90° and 360° scanning scopes. In Group A the first 2 sessions were performed with the 360° scope and the final 2 with the 90° scope in multiple micropulse mode, 1.7 J delivered per shot, 3 multishots, 3 passes per session. Group B underwent multiple micropulse mode treatment with the 90° scope in all 4 sessions (same parameters as Group A) then during the final 2 sessions an additional 2 passes/session were delivered with the 360° scope, long-pulsed mode, 3.7 J delivered per shot. Perineometer assessments were performed at baseline and at 2 months post-treatment for vaginal tightness. Histological specimens were taken at baseline and at 2 months post-procedure. Subjective satisfaction with vaginal tightening was assessed together with improvement in sexual satisfaction. Results were tested for statistical significance with the paired Student's t-test.
Results: All subjects successfully completed the study with no adverse events. Significant improvement in vaginal wall relaxation was seen in all subjects at 2 months post-procedure based on the perineometer values, on the partners' input for vaginal tightening (76.6%) and for sexual satisfaction as assessed by the subjects themselves (70.0%). The histological findings suggested better elasticity of the vaginal wall with tightening and firming.
Conclusions: Both regimens of Er:YAG laser treatment for VRS produced significant improvementin vaginal relaxation. With multishots delivered in the multiple micropulse mode via scanning scopes, nonsurgical Er:YAG laser treatment was pain-free, safe, side effect free, easily tolerated and effective.
