Evaluation of uterine artery recanalization and doppler parameters after bilateral uterine artery ligation in women with postpartum hemorrhage

Abstract

Aim: The evaluation of the uterine artery recanalization rate and color Doppler parameters during follow-up after bilateral uterine artery ligation (BUAL) for postpartum hemorrhage (PPH) related to uterine atony.

Material and method: A total of 40 female patients who underwent BUAL for PPH related to uterine atony and 96 females who gave birth without complication at Hatay Obstetrics and Gynecology Hospital between January 2009 and December 2012 (48 months) were included in the study. The patients' uterine artery recanalization rate and all subjects' color Doppler ultrasonographic parameters (PI, RI, PSV and EDV) were evaluated at the 6th and 12(th) months.

Result: No statistically significant difference was found between the age, obstetric history (gravida and parity), BMI, type of delivery, birth weight and gestational age when the demographic data of the groups were evaluated. The patient group UtA recanalization rate was 32.5% and 37.5% for the left and right UtA respectively at the 12-month follow-up. No statistically significant difference was found in the comparison of 6- and 12-month right and left uterine artery diameters and color doppler parameters of the patient group (UtA diameters P=0.322 and P=0.787, RI index P=0.390 and P=0.094, PI index P=0.949 and P=0.374, PSV P=0.335 and P=0.085, EDV P=0.173 and P=0.418, respectively). However, right and left ovarian volume was found to significantly increase during follow-up in patient group (P<0.001 for both right and left ovary). On the other hand, a statistically significant difference was found between the patient group and the control group in the comparison of the 6- and 12-month right and left uterine artery values (6th month; P<0.001 for both UtA diameters, RI, PI, PSV, EDV; 12(th) month; P<0.001 for right UtA diameter, RI, PI, PSV, EDV and P=0.002 for left UtA diameter). A statistically significant difference was found only in right ovary volume in the 6th month evaluation of the patient and control group ovary volumes (P=0.011).

Discussion: The recanalization rate and isolated uterine blood supply during low-term follow-up are low following the BUAL technique. The evaluation of future fertility results will be helpful in determining the reliability of this procedure in a definite manner.

Keywords: Postpartum hemorrhage; bilateral uterine artery ligation; doppler parameters; recanalization.

Figures

Figure 1

UtA diameters were measured on a perpendicular B-mode view of the longitudinal vessel section at maximum magnification. The lumen of the vessel was identified by colour power angiography and the diameter was measured on a gray-scale image after reducing the colour box by placing the calipers at the inner edges of the vessel itself at the specular reflection (Color doppler flow imaging and measurement of uterine vessel diameter for patient group in left side and for control group in right side).

Figure 2

Uterine arterial blood flow velocity vaveforms were obtained by means of color flow imaging to identify the ascending branch of the uterine artery on the left and right sides of the uterine isthmus. For each examination, the mean value of three consecutive waveforms was obtained (Color doppler flow imaging for patient group in left side and for control group in right side).