The Influence of Using Vascularized Vaginal Flap on the Efficacy of Mesh-augmented Sacrospinous Hysteropexy

Inclusion Criteria: * The subject is a woman with anterior and apical compartment pelvic organ prolapse * The age of a subject is 45-80 years * Leading point of prolapse is at the level of the hymen or distal to the hymen (Ba, C\>=1 according to POP-Q classification) * The subject gave written consent to participate in the study * The subject is able to evaluate the risks of the treatment and make an independent decision on participation in the study * The subject is able to fill up validated questionnaires and come to the control visit after the surgery Exclusion Criteria: * The subject has an active urinary tract infection or skin infection in the region of surgery or acute infectious disease * The subject had prior hysterectomy * The subject has previously diagnosed or currently active cancer * The subject has chronic pelvic pain * The subject has cervical elongation * The subject has gynecological diseases (recurrent uterine bleeding, endometrial hyperplasia, the presence of atypical cells in cervical smears, adenomyosis, multiple uterine myoma) * The subject is planning pregnancy * The subject is unable to visit postoperative check-ups * Refusal from participation.