Abstract:

Objective   To explore the learning curve of total laparoscopic hysterectomy(TLH). Methods   85 patients who received TLH were randomly divided into four phases according to their operation time, including 20 cases of Phase 1~3, 25 cases of Phase 4. The operation time and blood loss were compared and analyzed, and the learning curve was fitted with the simple sine curve. Results   The blood loss in Phase 4 was significantly lower than that in Phase 1(P<0.05). The operation time in Phase 3 and Phase 4 was significantly less than that in Phase 1 and Phase 2(P<0.05),while the difference was not significant between Phase 3 and Phase 4(P>0.05). Moving average line was fitted with the simple sine curve Y=sin-π/2, and the inflection point was 41. Conclusion   The learning curve for TLH1 is approximately 40 cases. And the surgeon can achieve a proficient level and stable degree.

Key words: Gynaecology; Total laparoscopic hysterectomy; Learning curve; Sine curve