Patient No Pathology Type of surgery Estimated blood loss (ml) PreoperativveHb(g/l) Postoperative Hb (g/l) Hb difference (g/l) 1 POP VH 100 120 100 20 2 leiomyoma LAVH, BSO 150 102 87 15 3 leiomyoma LAVH 150 120 103 17 4 ovarian cancer AH, BSO, OE, APE 300 143 101 42 5 leiomyoma LAVH 250 120 108 12 6 metrorrhagia HSC, D and C 10 142 142 0 7 leiomyoma LAVH 250 117 104 13 8 POP VH, Vaginal repair 250 143 112 31 9 POP VH, Vaginal repair 30 139 118 21 10 SUI VHY, Vaginal repair, TOT 100 124 114 10 11 leiomyoma LAVH 50 92 88 4 12 endometrial polyp HSC, D and C 10 140 140 0 13 metrorrhagia LSC, HSC, D and C 10 140 135 5 14 POP VH, Vaginal repair 100 140 120 20 15 endometrial cancer AH, BSO, 150 140 119 21 16 ovarian cancer AH,OE, APE 150 122 108 14 17 cervical cancer RTLH, BSO, LYP 20 116 89 27 18 leiomyoma AH, BSO, 300 145 126 19 19 endometrial cancer RTLH, BSO,LYP,LYPA 20 137 112 25 20 leiomyoma AH 150 122 80 42 21 endometrial cancer RTLH, BSO, LYP,LYPA 350 143 122 21 22 leiomyoma AH, BSO 150 120 100 20 23 endometrial polyp HSC, D and C 10 130 130 0 24 endometrial cancer AH, BSO, LYP 300 120 99 21 25 leiomyoma VH 40 154 140 14 26 metrorrhagia HSC, D and C 10 117 115 2 27 ovarian cancer BSO, OE, debulking 100 120 99 21 28 leiomyoma LSC myomectomy 250 130 126 4 29 metrorrhagia HSC, D and C 0 110 108 2 30 POP VH, Vaginal repair 150 130 125 5 31 leiomyoma AH 250 115 105 10 32 POP VH 80 135 128 7 33 POP VH, Vaginal repair 90 138 130 8 34 metrorrhagia HSC, D and C 10 112 110 2

Table 1: The diagnoses, surgical procedures and estimated blood loss during the operations. LAVH: Laparoscopic assisted vaginal hysterectomy, HSC: Hysteroscopy, BSO: Bilateral salpingo oophorectomy, TOT: Tension free transobturator vaginal tape, VH: vaginal hysterectomy, AH :abdominal hysterectomy, OE: Omentectomy, APE: Appendectomy, LSC: Laparoscopy, RTLH: Robot assisted total laparoscopic, LYP: Pelvic lymphadenectomy, LYPA: Paraaortic lymphadenectomy, SUI: Stress Urinary Inkontinence, POP: Pelvic organ prolapse.