Reproductive Outcomes Following Uterine Artery Occlusion at the Time of Myomectomy: Systematic Review and Meta-analysis

The impact of bilateral transient occlusion of uterine and utero-ovarian arteries on surgical blood loss during laparoscopic myomectomy: A systematic review and meta-analysis of randomized controlled trials

BACKGROUND

The primary perioperative concern during laparoscopic myomectomy is the risk of significant intraoperative blood loss, which can lead to hypovolemia, necessitate blood transfusion, and result in postoperative anemia. To address this issue, we conducted a systematic review and meta-analysis to assess the impact of temporarily clamping the uterine and utero-ovarian arteries on operative blood loss during laparoscopic myomectomy.

METHODS

We conducted a comprehensive search across various databases to identify eligible clinical trials from inception to May 2024, focusing on randomized controlled trials (RCTs). In the intervention group, temporary bilateral clamping of the uterine and utero-ovarian arteries was performed during laparoscopic myomectomy, while the control group underwent laparoscopic myomectomy without arterial clamping. A meta-analysis was carried out on the gathered data using Revman software. The primary outcomes examined were blood loss and change in hemoglobin, with secondary outcomes including operation time and length of hospital stay.

RESULTS

Three RCTs, involving a total of 275 patients, met our inclusion criteria. The intervention group showed significantly lower operative blood loss and a smaller reduction in hemoglobin compared to the control group. There was no notable difference in operation time between the two groups. Moreover, patients in the experimental group experienced a significantly shorter hospitalization duration than those in the control group.

CONCLUSIONS

The temporary bilateral occlusion of the uterine and utero-ovarian arteries is an effective method for reducing surgical blood loss, hemoglobin decline, and hospital stay duration during laparoscopic myomectomy. However, additional studies are needed to validate these findings.

Transcervical resection of myoma (TCRM): Part II

In the part I, we have already reported the rationale, efficacy, complication, and limitation of using transcervical resection of myoma (TCRM) in the management of women with symptomatic uterine fibroids, particularly for those belonging to the International Federation of Gynaecology & Obstetrics (FIGO) myoma classification system as FIGO types 0-2. The current review as part II, the discussion will focus on the techniques, tips and complication prevention or management when TCRM is applied in the management of women with symptomatic submucosal myoma. With better understanding for TCRM-related basic knowledge, such as rationale, efficacy, complication, technique review, tips and prevention or management of complications, plus the well-training and carefully performing TCRM through preceding accurate diagnosis, and good and careful preparation and intensive monitoring during operation and using effective strategy to preventing short-term and long-term complications, TCRM can become one of most powerful strategies in offering the less traumatic injury to the uterus, and an effective and safe surgical approach in dealing with women with symptomatic submucosal myoma.

Surgical impact of bilateral transient occlusion of uterine and utero-ovarian arteries during laparoscopic myomectomy

The objective of this article is to compare the amount of intraoperative blood loss during laparoscopic myomectomy when performing bilateral transient clamping of the uterine and utero-ovarian arteries versus no intervention. It´s a randomized controlled prospective study carried out in the Department of Obstetrics and Gynecology Ramón y Cajal University Hospital and HM Montepríncipe-Sanchinarro University Hospital, Madrid, Spain, in women with fibroid uterus undergoing laparoscopic myomectomy. Eighty women diagnosed with symptomatic fibroid uterus were randomly assigned to undergo laparoscopic myomectomy without additional intervention (Group A) or temporary clamping of bilateral uterine and utero-ovarian arteries prior to laparoscopic myomectomy (Group B). Estimated blood loss, operating time, length of hospital stay, and postoperative hemoglobin values were compared in both groups. The number of fibroids removed was similar in both groups (p = 0.77). Estimated blood loss was lower in the group of patients with prior occlusion of uterine arteries (p = 0.025) without increasing operating time (p = 0.17) nor length of stay (p = 0.17). No patient had either intra or postoperative complications. Only two patients (2.5%) required blood transfusion after surgery. We conclude that temporary clamping of bilateral uterine arteries prior to laparoscopic myomectomy is a safe intervention that reduces blood loss without increasing operative time.

Association of Myomectomy With Anti-Müllerian Hormone Levels and Ovarian Reserve

OBJECTIVE

To assess whether open and minimally invasive myomectomy are associated with changes in postoperative ovarian reserve as measured by serum anti-müllerian hormone (AMH) level.

METHODS

This prospective cohort study included patients who were undergoing open abdominal myomectomy that used a tourniquet or minimally invasive (robot-assisted or laparoscopic) myomectomy that used vasopressin. Serum AMH levels were collected before the procedure and at 2 weeks, 3 months, and 6 months after surgery. The mean change in AMH level at each postsurgery timepoint was compared with baseline. The effect of surgical route on the change in AMH level at each timepoint was assessed by using multivariable linear regression. A subanalysis evaluated postoperative changes in AMH levels among the open myomectomy and minimally invasive myomectomy groups individually.

RESULTS

The study included 111 patients (mean age 37.9±4.7 years), of whom 65 underwent open myomectomy and 46 underwent minimally invasive myomectomy. Eighty-seven patients contributed follow-up data. Serum AMH levels declined significantly at 2 weeks postsurgery (mean change -0.30 ng/mL, 95% CI -0.48 to -0.120 ng/mL, P=.002). No difference was observed at 3 months or 6 months postsurgery. On multiple linear regression, open myomectomy was significantly associated with a decline in AMH level at 2 weeks postsurgery (open myomectomy vs minimally invasive myomectomy: β=-0.63±0.22 ng/mL, P=.007) but not at 3 months or 6 months. Subanalysis revealed a significant decline in mean serum AMH levels in the open myomectomy group at 2 weeks (mean change -0.46 ng/mL, 95% CI -0.69 to -0.25 ng/mL, P<.001) postsurgery but not at three or 6 months. In the minimally invasive myomectomy group, no significant differences in mean AMH levels were detected between baseline and any postoperative timepoint.

CONCLUSION

Myomectomy is associated with a transient decline in AMH levels in the immediate postoperative period, particularly after open surgery in which a tourniquet is used. Anti-müllerian hormone levels returned to baseline by 3 months after surgery, indicating that myomectomy is not associated with a long-term effect on ovarian reserve, even with the use of a tourniquet to decrease blood loss.

FUNDING SOURCE

This study was funded in part by a Roche Diagnostics Investigator-Initiated Study Grant.

Effect of the enhanced recovery after surgery protocol on recovery after laparoscopic myomectomy: a systematic review and meta-analysis

BACKGROUND

Surgery is the recommended treatment for uterine leiomyoma but it still has issues like postoperative complications and slow recovery. The enhanced recovery after surgery (ERAS) protocol could probably reduce traumatic stress and promote the rapid postoperative recovery of patients, but there are controversies for the results of different studies. This meta-analysis was performed to resolve the controversies and provide evidence for the application of ERAS in gynecology.

METHODS

The PubMed, Embase, Ovid, CNKI (China), Wanfang Data (China), and Google Scholar databases were searched to recruit all studies on the application of ERAS in laparoscopic myomectomy up to November 2021. The inclusion criteria of studies was established according to the PICOS principles. the Cochrane RoB 2.0 and Newcastle-Ottawa Scale (NOS) scale were used to assess the bias of the studies, RevMan 5.3 software was used for meta-analysis.

RESULTS

Ten studies that met the criteria were finally included with 1,441 participants. Eight of them were randomized controlled trials (RCTs) and two were cohort studies, all of them were with low level of bias. Meta-analysis showed that ERAS protocol after laparoscopic myomectomy could significantly shorten the first time getting out of bed after surgery [mean difference (MD) =-4.85; 95% confidence interval (CI): (-7.35, -2.36); P=0.0001], the first defecation time after surgery [MD =-4.69; 95% CI: (-5.68, -3.69); P<0.00001], and the postoperative hospital stay [MD =-1.32, 95% CI: (-2.08, -0.56); P=0.0007]. It could also markedly reduce the patient readmission rate [odds ratio (OR) =0.42; 95% CI: (0.23, 0.76); P=0.004], and notably reduced the incidence of complications [OR =0.37; 95% CI: (0.22, 0.61); Z=3.82; P=0.0001]. Yet, the cost of the ERAS protocol was not significantly different from that of routine care [MD =-127.76, 95% CI: (-997.19, 741.66); P=0.77].

DISCUSSION

The application of ERAS protocol after gynecological laparoscopic myomectomy can shorten the first defecation time, first time out of bed, hospital stay, and reduce the readmission rate as well as the incidence of postoperative complications, without additional costs. But still there was heterogeneity among the studies, the topic still deserved further exploration.

Non-hysteroscopic Myomectomy and Fertility Outcomes: A Systematic Review

OBJECTIVE

To perform a systematic review of the literature to identify best practices for nonhysteroscopic myomectomy for women with myomas who desire future fertility. The focus areas included factors associated with conception and pregnancy outcomes after myomectomy, impact of surgical route (laparotomic, laparoscopic, and the incorporation of robot assistance), and preoperative findings and surgical techniques that have an impact on reproduction.

DATA SOURCES

Librarian-led electronic searches of the Ovid MEDLINE, Ovid Embase, and Cochrane CENTRAL databases were performed from inception to February 2020. A targeted reference review was performed to update the original searches.

METHODS OF STUDY SELECTION

The participants were women of reproductive age with myomas who underwent myoma removal surgery through laparotomic or laparoscopic approaches. The fertility outcomes included markers for ovarian reserve, clinical pregnancy rates, and pregnancy outcomes. We performed quality assessment using National Institutes of Health Study Quality Assessment Tools and developed clinical recommendations graded according to the strength of the evidence.

TABULATION, INTEGRATION, AND RESULTS

The initial search identified 2163 studies, of which 51 met the inclusion criteria. These consisted of 11 studies that focused on the factors associated with conception or pregnancy outcomes after myomectomy, 10 studies that examined the route of nonhysteroscopic myomectomy, and 30 that were related to intraoperative techniques and findings. Overall, younger age, lower myoma number, and distortion of the endometrial cavity were associated with improved reproductive outcomes after myomectomy. The route of nonhysteroscopic myomectomy and intraoperative uterine artery occlusion did not significantly affect pregnancy rates or outcomes. Adhesion barriers present a possible target for further research.

CONCLUSION

This study provides insights into patient selection and intraoperative techniques for nonhysteroscopic myomectomy. Further research with well-designed clinical trials is needed to highlight the relationships between myoma characteristics (International Federation of Gynecology and Obstetrics type, location, and size) and reproductive outcomes.