[Laser vaporization and incisional conization in cervical neoplasia as a conservative therapy]

We performed laser therapy for cervical neoplasia as a conservative therapy. Our materials were 202 cases (dysplasia-166, carcinoma in situ-36) treated by laser vaporization and 31 cases (dysplasia-7, CIS-7, questionable microinvasive cancer-17) by laser incisional conization. In addition to CO2 laser, we developed YAG laser and YAG/CO2 coaxial simultaneous laser for laser vaporization. On the other hand, we applied YAG laser for incisional conization with an attached laser rod (made of new ceramics) for use on an outpatient basis without anesthesia. Total cure rate after first treatment with laser vaporization was 93.0% (dysplasia 93.3%, CIS-91.7%). Pathological examination of the cone specimen revealed 8 cases of invasion (Ia stage-7, Ib stage-1). No abnormal findings could be found in follow-up cases. Complications were minimal in all cases. We thus demonstrated that simple and individualized management was possible for cervical neoplasia by applying either of these new methods.