Dynamics of Uterine Blood Flow Parameters in Minimally Invasive Surgeries of the Intrauterine Pathology with the Use of Various Energy Types

Study Objective: To analyze the nature of changes in the parameters of uterine blood flow in minimally invasive surgical treatment of intrauterine pathology with the use of the diode laser energy operated in pulsed mode or bipolar energy. Study Design: Retrospective comparative study. Materials and Methods. A retrospective analysis of the reports of the Doppler ultrasound examination of the uterine blood flow in 102 patients who underwent surgery in the period from 2016 till 2020 was conducted to study the dynamics of uterine blood flow parameters in minimally invasive surgeries of intrauterine pathology utilizing various types of energy. Treatment of intrauterine pathology with the use of surgical diode laser in pulsed mode was performed in 60 women (1st group), 42 women were treated with bipolar energy (2nd group). Resistance index (RI) and pulsatility index (PI) in the right and left uterine arteries, arterial perfusion index (API), possibility to register the blood flow in sub-endometrial and endometrial blood vessels were evaluated while studying the uterine blood flow. Study Results. After the surgeries performed with the use of diode laser, the IR and PI remained unchanged statistically significantly more frequently than after the surgical treatment with the use of bipolar energy: 75 and 53.34% vs 30.95 and 33.33%. API statistically significantly more frequently increased in the 1st group (53.33%) and decreased in the 2nd group (66.67%). The blood flow in basal and coiled arteries of the uterus in post-surgery period is registered statistically significantly more often if diode laser was used as compared to the surgeries performed with bipolar energy (43.33 and 41.67% vs 21.43 and 19.05%, respectively). Conclusion. The use of bipolar energy in the treatment of intrauterine pathology leads to more severe uterine blood flow disturbances than surgeries with the use of diode laser. That is why it is reasonable to use the energy of a diode laser in pulsed mode in case of minimally invasive surgical treatment of intrauterine pathology. Keywords: intrauterine pathology, office hysteroscopy, diode laser, bipolar electrode, uterine blood flow.