Comparative characteristics of the effect of mono and bipolar energy during hysteroresectoscopy

The objective: to evaluate of postoperative complications, duration of surgical intervention and hospital stay of patients after hysteroscopic surgery using monopolar or bipolar electrodes.Materials and methods. Eighty gynecological patients who had hysteroscopic surgery were divided into two groups of 40 women each. Patients of the I (main) group had hysteroscopic procedures using a bipolar electrode, the persons in the II (comparison) group – a monopolar electrode. The registration of operative complications was carried out – bleeding, perforation, excess fluid and hyponatremia. The time of operation and stay in a gynecological hospital were also taken into account.Results. There were no statistically significant differences between the two groups regarding patient’s characteristics, ultrasound findings, serum sodium levels before and after surgery, uterine perforation, and intraoperative bleeding. Fluid overload was significantly higher in patients of the II group (p<0.03). Postoperative hyponatremia was also significantly pronounced in the II group (p<0.05). The average operation time was significantly shorter in women of the I group compared to the II group (p=0.01), and the hospital stay was significantly shorter for patients after hysteroscopic intervention using bipolar energy compared to the group in which monopolar energy was used (p=0.04). Conclusions. Hysteroresectoscopy with the use of bipolar electrodes is accompanied by a significant decrease in cases of hyponatremia, reduction of the duration of surgical intervention and the stay of gynecological patients in the hospital after surgery. Therefore, this method is safe and effective compared to the use of monopolar electrodes.