Impact of previous uterine artery embolization on fertility

Resection of uterine arteriovenous fistula with temporary occlusion of the internal iliac arteries: Case series and literature review

RATIONALE

Uterine arteriovenous fistula (UAVF) is a rare vascular abnormality that can cause severe and potentially life-threatening hemorrhage. Uterine artery embolization is a common treatment that may affect ovarian and uterine perfusion and cause fertility problems. We herein report our experience treating 2 patients with UAVF who underwent resection after temporary occlusion of both internal iliac arteries.

PATIENT CONCERNS

Both patients presented with a large UAVF after incomplete miscarriages in the second trimester. Magnetic resonance imaging revealed a UAVF measuring 3.6 × 2.6 × 2.1 cm over the myometrium of the posterior uterine in case 1, and a UAVF of 7.1 × 4.1 × 4.5 cm was identified in case 2.

DIAGNOSIS

Uterine arteriovenous fistula, retained products of conception.

INTERVENTIONS

The patients underwent resection of UAVF with temporary occlusion of the internal iliac arteries and hysteroscopic removal of the retained products of conception.

OUTCOMES

Intraoperative bleeding were minimal. Neither patient exhibited abnormal uterine bleeding at the 6-month follow-up. Follow-up ultrasonography and magnetic resonance imaging showed normal uterine myometrium and endometrium and no residual disease.

LESSONS

UAVF resection after temporary occlusion of the internal iliac arteries is a promising treatment approach for UAVF. This technique can reduce intraoperative bleeding and remove the potential hemorrhage-related lesion while preserving fertility.

Clinical Outcomes of Conservative Surgery for Diffuse Uterine Leiomyomatosis: Preliminary Experience of 17 Cases in a Single Center

This study aimed to introduce the clinical outcomes of conservative surgery for diffuse uterine leiomyomatosis, which also included the specialized surgical technique. All patients with diffuse uterine leiomyomatosis underwent conservative surgery such as transient occlusion of the uterine arteries (TOUA) adenomyomectomy. All 17 surgeries were performed by a single surgeon between 2018 and 2021. The mean age of the 17 patients was 36.12 years old (range 29-48, SD = 5.4). Fourteen of the 17 patients received a previous myomectomy via a laparotomic (6, 35.3%), laparoscopic (6, 35.3%), or hysteroscopic (2, 11.8%) approach. The major symptom was menorrhagia (94.1%); the mean operation time was 97.06 min (70-160, SD = 22.71), and the mean estimated blood loss was 283.53 mL (20-1000, SD = 273.72). The mean hemoglobin level one day after the operation was 9.64 g/dL (7.2-13.1, SD = 1.85). The mean hospital stay was 6.47 days (6-8, SD = 0.62). The mean follow-up duration was 116.41 weeks (32-216, SD = 50.88). The recurrence rate was 5/17 (29.4%), and the recurrence-free interval was 50.6 weeks (27-87, SD = 23.71). In patients with diffuse uterine leiomyomatosis, who want fertility preservation and relief of disease-related symptoms, conservative surgery such as TOUA adenomyomectomy could be a good option to preserve the uterus. However, further studies are required to assess fertility outcomes with a long-term follow-up.

Fertility Outcomes After Uterine Artery Embolization for Symptomatic Uterine Arteriovenous Malformations: A Single-Center Retrospective Study in 33 Women

PURPOSE

To describe the clinical and fertility outcomes after uterine artery embolization (UAE) for symptomatic uterine arteriovenous malformations (AVMs).

MATERIALS AND METHODS

This single-center retrospective study included 33 patients with uterine AVMs who underwent UAE at our institution between May 2013 and May 2021. The inclusion criteria were diagnostic features of uterine AVM as detection of the nidus and early venous drainage on angiography. The exclusion criteria were high levels of beta-human chorionic gonadotropin indicative of gestational trophoblastic neoplasia. Polyvinyl alcohol (PVA) with a diameter of 500-700 µm (with or without Gelfoam/Glue) was used in 32 procedures and, Glue (with lipiodol) was used in one. The patients were followed up for 31 months (range, 6-90 months). Angiograms, medical records, and phone interviews were used to describe the technical and clinical success, complications, and pregnancy outcomes.

RESULTS

Thirty-three patients with a mean age of 31.2 ± 5.4 years (range, 21-42 years) were included in this case series. Technical success was reported in all patients (100%). Bleeding control was also achieved in 32 (96%) patients. Pelvic and puncture site pain and groin hematoma were reported as minor complications (grade 1 according to CIRSE classification). Six pregnancies (33%) occurred after uterine artery embolization. Four women had full-term pregnancies without complications and delivered healthy newborns. Another two women were in the second trimester of pregnancy with a favorable fetal condition. No post-embolization miscarriage was reported.

CONCLUSION

The UAE is safe and effective in controlling vaginal bleeding caused by uterine AVMs, allowing successful future pregnancies.

Comparison of Uterine Necrosis After Uterine Artery Embolization with Soluble Gelatin Sponge Particles or Tris-acryl Gelatin Microspheres in Swine

PURPOSE

To compare the recanalization of the uterine arteries and uterine necrosis after uterine artery embolization (UAE) using either soluble gelatin sponge particles (SGS), which dissolve in saline, or tris-acryl gelatin microspheres (MS), which are permanent embolic materials, in swine.

METHODS

Fourteen uteri in seven swine were divided into two groups for embolization with either 500-1000 µm SGS (SGS group) or 500-700 µm MS (MS group) (seven uteri per group). The uterine arteries were embolized using SGS or MS, and angiography was performed to evaluate recanalization of the uterine arteries immediately, 1, 2, 3, 4, 5, and 6 h, and 3 days after embolization. On day 3, the uteri were removed to determine the macroscopic necrosis rate and for histopathologic examination.

RESULTS

In the SGS group, four uterine arteries were completely recanalized, two were partially recanalized, and one was still occluded 5 h after embolization. In contrast, all seven uterine arteries in the MS group were still occluded 6 h after embolization. The complete recanalization rate at 3 days was significantly greater in the SGS group than in the MS group (100.0% vs. 14.3%, respectively; P = .0047). The mean uterine necrosis rate was not significantly different between the SGS and MS groups (15.0 ± 15.7% vs. 26.8 ± 13.3%, respectively; P = .096). The mean smallest arterial diameter containing embolic materials was 48.2 ± 22.0 μm (range 21-109 μm) for SGS and 446.7 ± 107.0 μm (range 352-742 μm) for MS (P < .0001).

CONCLUSION

The uterine arteries recanalized earlier in the SGS group than in the MS group and the uterine necrosis rates were similar in both groups. SGS have the potential for a more distal penetration in comparison with MS.

Medical treatment of uterine arteriovenous malformation: a systematic review and meta-analysis

OBJECTIVE

To quantify the efficacy of medical management of uterine arteriovenous malformation (AVM) and compare efficacy between different classes of medication. In addition, we evaluated for factors associated with treatment success and pregnancy outcomes after medical management.

DESIGN

Systematic review and meta-analysis.

SETTING

Not applicable.

PATIENT(S)

Thirty-two studies representing 121 premenopausal women with medically-treated uterine AVM were identified via database searches of MEDLINE, Embase, Web of Science, and cited references.

INTERVENTION(S)

Medical treatment with progestins, gonadotropin-releasing hormone agonists (GnRH-a), methotrexate, combined hormonal contraception , uterotonics, danazol, or combination of the above.

MAIN OUTCOME MEASURE(S)

Primary outcome of treatment success was defined as AVM resolution without subsequent procedural interventions. Secondary outcome was treatment complication (readmission or transfusion).

RESULT(S)

The overall success rate of medical management was 88% (106/121). After adjusting for clustering effects, success rates for progestin (82.5%; 95% confidence interval [CI], 70.1%-90.4%), GnRH-a (89.3%; 99% CI, 71.4%-96.5%) and methotrexate (90.0%; 99% CI, 55.8%-98.8%) were significantly different from the null hypothesis of 50% success. The agents with the lowest adjusted proportion of complications were progestins (10.0%; 99% CI, 3.3%-26.8%) and GnRH-a (10.7%; 99% CI, 3.5%-28.4%). No clinical factors were found to predict treatment success. Twenty-six subsequent pregnancies are described, with no reported recurrences of AVM.

CONCLUSION(S)

Medical management for uterine AVM is a reasonable approach in a well selected patient. These data should be interpreted in the context of significant publication bias.

Uterine Artery Embolization for Secondary Postpartum Hemorrhage

Postpartum hemorrhage (PPH) affects approximately 14 million women yearly, accounts for 25% of delivery-related deaths in the world and is the main cause of emergency peripartum hysterectomy. Traditionally, PPH is defined as at least 500 mL of blood loss after vaginal delivery or 1000 mL of blood loss after cesarean-section. However, several authors have suggested a simpler definition to include women who experience hemodynamic instability after birth regardless of amount of blood loss. Secondary PPH is defined as bleeding that occurs after 24 hours to 12 weeks from delivery, and can fail medical management. It is imperative that the clinical team recognize the signs and symptoms of secondary PPH and, if necessary, consult the interventional radiology service for a minimally invasive option of uterine artery embolization, which has shown up to 95% success rate.

Pregnancy outcome in women with prior placenta accreta spectrum disorders treated with conservative-reconstructive surgery: analysis of 202 cases

AIM

To report the outcome of pregnant women with a prior pregnancy complicated by placenta accreta spectrum (PAS) disorders treated with resective-conservative surgery at the time of cesarean section.

MATERIALS AND METHODS

Retrospective analysis of pregnant women treated with conservative surgery in the prior pregnancy complicated by PAS disorders. The primary outcome was spontaneous preterm birth with intact membranes or following a preterm labor rupture of the membranes before 37 weeks of gestation. Secondary outcomes were uterine rupture, need for hysterectomy due to severe ante or intrapartum maternal hemorrhage, myometrial thinning at the time of cesarean section, 5 min Apgar score, birth weight centile, and the occurrence of small for gestational age newborns. All these outcomes were observed in women with prior PAS treated with conservative resective surgery divided according to the topographical surgical classification.

RESULT

Pregnancies included: 89.6% (181/202) related to PAS type 1; 7.9% (16/202) related to PAS type 2, and 2.5% (5/202) related to PAS type 3. 90% of cases (162/179) (95 CI: 90.3-90.6) completed the pregnancy at term (greater than 37 weeks). The average intergenesic period was 15 months for PAS type 1 and 2 (SD 4,76) (Q1:12; Q3:19), and 18 months for PAS 3 (SD 6,56) (Q1:14; Q3:19). A few mothers presented some complications PPROM 1; premature labor 4; hypertension 2; atony 1; overweight 1; and gestational diabetes 2. The mean age was 30 years (T1), 31 years (T2), and 36 years (T3·). The uterine segment was thicker than usual except for one case of partial uterine dehiscence (twins). There were no placenta previa or PAS, a uterine atony case, and there was one case of hysterectomy by patient request.

CONCLUSIONS

Subsequent pregnancies after use of resective-reconstructive for PAS has demonstrated to have similar maternal and neonatal outcomes to typical gestation and cesarean delivery.

CT angiography for the management of postpartum hemorrhage refractory to conservative treatment

INTRODUCTION

Postpartum hemorrhage (PPH) is one of the leading causes of maternal morbidity and mortality. Computerized tomographic (CT) angiography is a useful tool to identify hemorrhage from various conditions. However, the feasibility of CT angiography for the management of PPH has not been well evaluated.

OBJECTIVE

To evaluate the clinical usefulness of CT angiography in the management of PPH refractory to the conservative treatment.

METHODS

This retrospective cohort study consisted of 528 consecutive patients who were transferred to our institute after delivery at 28 primary maternity hospitals for the management of PPH between 2009 and 2017. Immediate intervention such as arterial embolization and hysterectomy were performed on 278 patients. Of the remaining 250 patients, CT angiography was performed on 61 patients with hemodynamic stability but with sustained hemorrhage refractory to medical treatment. The diagnostic index was assessed using conventional angiography as the reference standard. The clinical outcome was compared between patients with and without contrast extravasation on CT angiography.

RESULTS

(1) The prevalence of contrast extravasation was found in 61% of patients (37/61); (2) conventional angiography and arterial embolization were performed in 78% of patients (29/37) with contrast extravasation on CT angiography. Contrast extravasation was confirmed in 83% of patients (24/29) by conventional angiography; (3) among the 24 patients without contrast extravasation on CT angiography, 96% (23/24) were managed conservatively; (4) the patients with contrast extravasation on CT angiography received more packed red blood cell (PRBC) transfusion than those without that condition (7.3 ± 5.2 units vs. 3.8 ± 2.9 units, p = .009). Massive transfusion (defined as transfusion of 10 or more units of PRBC) was more common in patients with contrast extravasation than in those without (27% [10/37] vs. 0% [0/24], p = .004).

CONCLUSIONS

Conservative treatment succeeded in 96% of patients without contrast extravasation on CT angiography. CT angiography is useful to identify patients requiring intervention in the management of hemorrhage refractory to medical treatment.

Association of hemorrhage at termination in caesarean scar pregnancy using the crossover sign of ultrasound image

PURPOSE

To analyze whether crossover sign (COS) can help predict the risk of bleeding during surgical evacuation in patients with caesarean scar pregnancy (CSP).

METHODS

This study retrospectively analyzed the clinical presentations, ultrasound images and treatment outcomes of patients with CSP. The relationship among the gestational sac, caesarean scar and the anterior uterine wall, defined as the COS, was analyzed to predict the risk of severe bleeding during surgical evacuation in these patients. All patients were categorized according to the relationship between the endometrial line and the superior-inferior diameter of the gestational sac into crossover sign-1 and crossover sign-2 groups. The Mann-Whitney U test was used to compare the data with non-normal distribution, and logistic regression analysis was performed to identify the correlates of severe bleeding.

RESULTS

A total of 74 patients were included. In COS-1 group (n = 21), 16 (76.19%) patients suffered heavy bleeding(≥200 mL) during surgical evacuation, while COS-2 group (n = 53) had only 1(11.89%) patient complaint of heavy bleeding (≥200 mL) (P < 0.01). Adverse surgical outcomes were more common in women with COS-1. Logistic regression analysis showed that COS-1 (OR, 7.93; 95% CI, 1.35-46.67) was independently associated with severe bleeding.

CONCLUSION

COS can help predict who has a higher risk of severe hemorrhage in patients with CSP and guide the clinical treatment selection for optimal management of this condition.

Uterine artery pseudoaneurysm and embolisation during pregnancy

Uterine artery pseudoaneurysm in pregnancy is a dangerous condition as rupture can be catastrophic due to the large volume of uterine blood flow. We present a case of a healthy, young woman with a desired pregnancy at 15 weeks of gestation incidentally discovered to have a pseudoaneurysm of the uterine artery during a routine prenatal ultrasound. She underwent initial thrombin injection followed by endovascular coil embolisation of the left uterine artery and carried the pregnancy to term without further complications.

Intra-operative uterine artery embolization with caesarean delivery in an adjoining operating theatre and catheter lab (OT/CL) complex vs. conventional management in patients with abnormally invasive placenta: a retrospective case control study

Patients of abnormally invasive placenta (AIP) undergoing caesarean delivery are at increased risk of haemorrhage. Conventional management includes piecemeal removal of placenta or placenta left in situ. However, they often require hysterectomy after delivery. Post-delivery prophylactic uterine artery embolisation (UAE) can help reduce morbidity and preserve fertility. We created an adjoining operating theatre and catheter lab (OT/CL complex). This is a retrospective case control study in which 37 patients of AIP were evaluated. Sixteen subjects (cases) had UAE immediately after caesarean delivery, and 21 subjects (controls) had usual care with traditional methods of controlling postpartum haemorrhage and hysterectomy where required. The hysterectomy rate (18.7% vs. 85.7%), mean duration of hospital stay (6.8 ± 2.6 vs. 13.9 ± 8.1) and number of units of blood transfusion required were significantly less in the case group as compared with controls. UAE is an effective conservative treatment along with caesarean delivery in patients with AIP.Impact statementWhat is already known? AIP is associated with high rates of PPH, maternal morbidity and mortality and need for hysterectomy after delivery. UAE has been advocated to preserve fertility and reduce PPH in these patients along with caesarean delivery.What does the study add? We created an adjoining operating theatre and catheter lab (OT/CL complex) in a tertiary care centre and managed these patients with prompt UAE after caesarean delivery with team approach. We have shown significant reduction in morbidity and hospital stay with this coordinated management.What are the implications for clinical practice and/or further research? UAE with caesarean delivery is a preferred mode of delivery for patients of AIP. These patients should be diagnosed and referred to tertiary care centres with such facilities electively so as to provide optimal care to these patients. Cooperation between interventionist and obstetrician and adjoining availability of OT and catheter lab can further help in reducing the time to embolisation after delivery. A hybrid operating theatre with digital subtraction angiography (DSA) facilities would be ideal for the management of such patients.

Rupture of a caesarean scar ectopic pregnancy: A case report

BACKGROUND

Caesarean scar pregnancy is an uncommon form of ectopic pregnancy characterized by implantation into the site of a caesarean scar. Common clinical features include vaginal bleeding and abdominal pain; however, a significant proportion of cases are asymptomatic. The primary diagnostic modality is transvaginal ultrasound. There is no current consensus on best-practice management.

CASE PRESENTATION

A 36-year-old woman, G7P2, presented to an early-pregnancy service with vaginal spotting and an ultrasound scan demonstrating a live caesarean scar ectopic pregnancy at 8 + 5 weeks' gestation. On examination she was hemodynamically stable with a soft abdomen. She was advised to have dilation and curettage (D&C) under ultrasound guidance; however, she was concerned that she might require more extensive surgery, such as a hysterectomy and so requested non-surgical management. On day 1 she underwent ultrasound-guided embryocide with lignocaine followed by inpatient multi-dose systemic methotrexate. Her beta-human gonadotrophic hormone level decreased. Repeat ultrasound on day 18 demonstrated a persistent caesarean scar ectopic pregnancy with increased vascularity, and so uterine artery embolization (UAE) was performed with a view to D&C the following day. This plan was altered to expectant management with ongoing follow-up by a different clinician who had had previous success with UAE alone. On day 35 the patient presented with life-threatening vaginal bleeding that required an emergency total abdominal hysterectomy.

CONCLUSIONS

Caesarean scar pregnancies are uncommon. Multiple treatment strategies have been employed, with variable degrees of success. Further research into risk stratification and management are needed to guide clinician and patient decision making.

The effects of methotrexate and uterine arterial embolization in patients with cesarean scar pregnancy: A retrospective case-control study

In this study, we explored the optimal treatment for cesarean scar pregnancy (CSP). One hundred three women diagnosed with CSP received 1 of the 3 treatments: local or systemic methotrexate (MTX) injection and surgery (MTX + Surg), uterine arterial embolization (UAE) and surgery (UAE + Surg) or surgery only (Surg only). We compared their therapeutic effects and their follow-up results. There was no significant difference between the groups in the baseline of clinical characteristic except for the initial β human chorionic gonadotropin levels, which was highest in the MTX + Surg group (median, [interquartile range]), (120,004 [16,720-181,727] mIU/mL), compared to the UAE + Surg group (38,219 [23,194-100,029] mIU/mL) and Surg only group (22,557 [9113-49,573] mIU/mL). There was no significant difference between groups in the sonographic characteristic of patients. The intraoperative hemorrhage was highest in the Surg-only group (7/42, 16.67%), compared to the MTX + Surg group (4/26, 15.38%) and the UAE + Surg group (0/35, 0%). The incidence of intrauterine adhesions was highest in the UAE + Surg group (20%), compared to the MTX + Surg group (0%) and the Surg only group (0%). The incidence of embryo residue was highest in Surg-only group (21.43%), compared to the MTX + Surg group (0%) and the UAE + Surg group (2.86%). To conclude, MTX injection plus surgery might be the best treatment for CSP patients.

Diagnosis and management of patients with enhanced myometrial vascularity associated with retained products of conception

OBJECTIVES

To assess the complication rate, including estimated amount of blood loss, in patients undergoing dilation and curettage (D&C) for the treatment of retained products of conception with markedly enhanced myometrial vascularity mimicking arteriovenous malformation.

METHODS

This was a retrospective medical-records review study of patients with retained products of conception with enhanced myometrial vascularity presenting to our ultrasound unit between August 2015 and August 2017. Color/power Doppler imaging was used subjectively to identify the degree and extent of vascularity. All patients underwent D&C, and their operative reports and medical records were reviewed to see if ultrasound guidance was used, to ascertain estimated blood loss and to identify complications during or after the procedure.

RESULTS

The study group included 31 patients, of whom seven had retained products of conception after a vaginal delivery and 24 had retained products of conception after a first-trimester termination or miscarriage. The largest dimension of the region of enhanced myometrial vascularity ranged from 10 mm to 53 mm, with 14/31 having a width of ≥ 20 mm. Fifteen patients underwent a standard D&C procedure, 13 an ultrasound-guided procedure and three hysteroscopy. Estimated operative blood loss varied from negligible to a maximum of 400 mL. There were no intraoperative complications, although one patient was treated for presumed endometritis.

CONCLUSIONS

An increasing number of studies describe the enhanced myometrial vascularity associated with retained products of conception as 'acquired arteriovenous malformation', with some recommending management with uterine-artery embolization. Our study demonstrates that the enhanced myometrial vascularity is associated with retained products of conception, and surgical removal by D&C, possibly with the aid of ultrasound guidance or hysteroscopy, is a safe treatment option. Copyright © 2017 ISUOG. Published by John Wiley & Sons Ltd.

Spontaneous Regression of Uterine Arteriovenous Malformations with Conservative Management

Uterine arteriovenous malformation (AVM) can cause massive hemorrhage and is often treated with uterine artery embolization (UAE), which may lead to ovarian insufficiency. Thus, avoiding UAE should be considered, particularly in women undergoing fertility treatments. We present three women diagnosed with postmiscarriage AVM on color Doppler by transvaginal ultrasound imaging. They had no genital bleeding and a small mass, measuring 16–22 mm. If estradiol was >300 pg/mL when AVM was diagnosed, then a gonadotropin-releasing hormone agonist was administered. All three women underwent follow-up observation, revealing spontaneous mass disappearance. To avoid ovarian insufficiency risk with UAE, conservative management and close follow-up observation should be considered in patients with AVM without bleeding, particularly during the fertility treatment.

Differential diagnosis and management of placental polyp and uterine arteriovenous malformation: Case reports and review of the literature

Postpartum uterine bleeding is not uncommon and is caused by a variety of obstetrical and gynecological disorders, such as retained placenta, dysfunctional bleeding, and endometrial polyps. Placental polyps and uterine arteriovenous malformation are disorders often encountered in cases of abnormal uterine bleeding in the late puerperal period. These patients may experience life-threatening bleeding and require prompt intervention based on the correct differential diagnosis. The optimal treatments for both diseases differ as follows: intrauterine curettage or transcervical resection are chosen for placental polyps, while total abdominal hysterectomy or uterine artery embolization is preferred for uterine arteriovenous malformation since intrauterine curettage or transcervical resection has the risk of massive bleeding. However, since placental polyp and uterine arteriovenous malformation have similar clinical characteristics, it is important to accurately identify and differentiate between them to ensure optimal therapy. We report here cases that were suggestive of placental polyp or uterine arteriovenous malformation. We discuss the differential diagnoses and treatments for both diseases based on a literature review and propose a novel algorithm for managing such patients.

Prise en charge des fibromes utérins en présence d'une infertilité autrement inexpliquée

OBJECTIF

Formuler des recommandations quant à la façon optimale d'assurer la prise en charge des fibromes dans le contexte de l'infertilité. Les options habituelles et novatrices de prise en charge des fibromes seront analysées en mettant l'accent sur leur applicabilité chez les femmes qui souhaitent obtenir une grossesse.

OPTIONS

La prise en charge des fibromes chez les femmes qui souhaitent obtenir une grossesse met d'abord en jeu la documentation de la présence des fibromes en question et la détermination de la probabilité que ces derniers affectent le potentiel génésique. Dans un tel contexte, la prise en charge des fibromes s'effectue principalement de façon chirurgicale; toutefois, il faut s'assurer au préalable de mettre en balance les avantages factuels de l'approche chirurgicale en matière d'amélioration des issues cliniques et les risques propres à une telle approche.

ISSUES

L'amélioration des taux et des issues de grossesse que permet la prise en charge des fibromes chez les femmes aux prises avec l'infertilité constitue l'issue principale sur laquelle nous nous sommes attardés. RéSULTATS: La littérature publiée a été récupérée par l'intermédiaire de recherches menées dans PubMed, CINAHL et Cochrane Systematic Reviews en novembre 2013 au moyen d'un vocabulaire contrôlé (p. ex. « leiomyoma », « infertility », « uterine artery embolization », « fertilization in vitro ») et de mots clés (p. ex. « fibroid », « myomectomy ») appropriés. Les résultats ont été restreints aux analyses systématiques, aux études observationnelles et aux essais comparatifs randomisés / essais cliniques comparatifs publiés en anglais et français. Aucune restriction n'a été appliquée en matière de date. Les recherches ont été mises à jour de façon régulière et intégrées à la directive clinique jusqu'en novembre 2013. La littérature grise (non publiée) a été identifiée par l'intermédiaire de recherches menées dans les sites Web d'organismes s'intéressant à l'évaluation des technologies dans le domaine de la santé et d'organismes connexes, dans des collections de directives cliniques, dans des registres d'essais cliniques, et auprès de sociétés de spécialité médicale nationales et internationales.

VALEURS

La qualité des résultats est évaluée au moyen des critères décrits par le Groupe d'étude canadien sur les soins de santé préventifs (Tableau). AVANTAGES, DéSAVANTAGES ET COûTS: Les présentes recommandations devraient permettre la prise en charge adéquate des femmes qui présentent des fibromes et qui sont aux prises avec l'infertilité, et ce, par la maximisation de leurs chances de grossesse grâce à la minimisation des risques mis en cause par la tenue de myomectomies inutiles. L'atténuation des complications et l'élimination des interventions inutiles devraient également mener à une baisse des coûts pour le système de santé. DéCLARATIONS SOMMAIRES: RECOMMANDATIONS.

Clinical and imaging predictors of management in retained products of conception

OBJECTIVES

To determine if clinical and ultrasound (US) imaging features help predict management in clinically suspected retained products of conception (RPOC).

METHODS

334 patients sonographically evaluated for RPOC were included in this IRB-approved retrospective study. Of the 334 patients, 176 had sonographic diagnosis of RPOC and comprised the final study group. Patients were managed expectantly, medically, or surgically in accordance with clinical judgment of treating physicians. Pelvic sonograms were retrospectively reviewed for endometrial stripe thickness and vascularity was graded on a 0-3 scale based on appearance relative to myometrium (Grade 0: no vascularity, Grade 1: minimal vascularity, Grade 2: moderate vascularity, Grade 3: marked vascularity). Clinical and imaging predictors of management were evaluated in univariate and multivariate analysis.

RESULTS

Mean patient age was 29.6 years and mean gestational age was 17.4 weeks. Most (74.4%) women presented with vaginal bleeding. 83 patients (47.2%) were treated conservatively with expectant management, 42 (23.8%) were treated medically, and 51 (29.0%) required surgical intervention. Mean endometrial stripe thickness was 21.3 mm. 47 women (26.7%) had vascularity score of 0; 50 (28.4%) had score 1; 52 (29.6%) had score 2; and 27 (15.3%) had score 3. In univariate analysis, serum hemoglobin (Hb) (p < 0.0001), endometrial stripe thickness on US (p < 0.005), presenting symptoms (p = 0.03), and US vascularity score (p < 0.005) were statistically significant predictors of final management. In multivariate logistic regression, serum Hb (OR 0.69, 95% CI 0.55-0.86, p < 0.0009), endometrial stripe thickness (OR 1.08, 95% CI 1.04-1.12, p < 0.0001), and US vascularity score (OR 1.77, 95% CI 1.16-2.70, p < 0.01) were statistically significant predictors of need for surgery.

CONCLUSIONS

Serum Hb, endometrial stripe thickness, and US vascularity score were significant predictors of clinical management, particularly the need for surgical intervention, in women with clinically suspected RPOC.

Review of nonsurgical/minimally invasive treatments and open myomectomy for uterine fibroids

PURPOSE OF REVIEW

The main purpose of this review is to collect the most recent evidence with regards to safety and effectiveness of the nonsurgical and minimally invasive treatment options for uterine fibroids.

RECENT FINDINGS

Among the nonsurgical options, uterine artery embolization (UAE), and in eligible patients, magnetic resonance-guided high-intensity focused ultrasound (MRgFUS) are emerging as effective alternatives to surgical options for treatment of symptomatic fibroids. MRgFUS is comparable to UAE, and appears to be a cost effective treatment option, especially in older women, although long-term data are awaited. The transvaginal route for radiofrequency ablation is a promising new nonsurgical alternative, which needs to be studied in larger trials to establish its safety and efficacy.The laparoscopic myomectomy results in less postoperative pain, reduced febrile morbidity, and shorter hospital stay when compared with open laparotomy. The newer robotic approach is comparable to traditional laparoscopic technique in short surgical outcomes but is associated with higher costs. Hysteroscopic myoma resection is an effective surgical intervention for submucous fibroids and prior misoprostol use can help in reducing cervical lacerations.

SUMMARY

UAE and MRgFUS can be offered as an alternative nonsurgical option for eligible women with symptomatic fibroids. Laparoscopic myomectomy remains a safe and effective surgical option with advantage of less postoperative pain and faster recovery compared with open laparotomy for women who wish to retain their fertility options.

Successful Transarterial Embolization of Uterine Arteriovenous Malformation: Report of Three Cases

Uterine arteriovenous malformations (AVMs) are relatively rare disorders that can cause life-threatening vaginal bleeding. We describe three childbearing-age females, who had abdominal pain and heavy vaginal bleeding, and were diagnosed as uterine AVM by color Doppler and angiography. The patients received successful superselective transarterial embolization (TAE) with N-butyl cyanoacrylate (NBCA). Three years after treatment, one of them was admitted to our hospital for vaginal delivery at 39 weeks of gestation, and the baby was healthy.

Maximum Peak Systolic Velocity and Management of Highly Vascularized Retained Products of Conception

OBJECTIVES

The purpose of this study was to evaluate blood loss and procedure-related complications during and after surgical removal of retained products of conception with high-velocity enhanced myometrial vascularity.

METHODS

We conducted a prospective study of 18 consecutive women with a diagnosis of retained products of conception and enhanced myometrial vascularity, with a peak systolic velocity (PSV) higher than 60 cm/s. All underwent ultrasound-guided surgical removal of the retained products under general anesthesia. Blood loss during the procedure was collected and recorded. The removed tissue was sent for histologic examination. An ultrasound examination was repeated within 24 hours.

RESULTS

Five patients had retained products of conception after a term delivery, 1 after a second-trimester termination of pregnancy, 7 after a spontaneous first-trimester miscarriage, and 5 after a first-trimester termination elsewhere. The PSV in the area of enhanced myometrial vascularity at diagnosis ranged from 61.0 to 152.6 cm/s (mean, 104.9 cm/s). The estimated blood loss at surgery ranged from 20 to 1000 mL (mean, 200 mL). After surgery, the PSV in the myometrium dropped dramatically (≤30 cm/s in all but 1 case). In all cases, trophoblastic tissue was confirmed at histologic examination.

CONCLUSIONS

Although surgical removal of retained products of conception was uneventful in most cases, heavy bleeding has to be anticipated in cases of high-velocity flow in the myometrium underlying residual trophoblastic tissue. Accordingly, in cases of high-velocity enhanced myometrial vascularity, we advocate surgical removal of the residual tissue under ultrasound guidance by an experienced surgeon and in the presence of a fully informed anesthetist.

Invasive ultrasound in the management of cervical ectopic pregnancy

Invasive ultrasound management of a 6-week live cervical pregnancy in a 26-year old primipara is described. The patient was given methotrexate three times at seven-day intervals with no effect. Then 15% KCl was administered intra-amniotically via the transvaginal and transcervical route under ultrasound guidance. The procedure was successful, causing fetal death and loss of trophoblastic blood flow on Doppler examination. Over the subsequent four weeks, there was a steady decrease of serum β-hCG concentration. After four weeks, curettage of the cervical canal and uterine cavity was performed successfully. This method of treatment enabled avoidance of invasive surgical procedures, which might have limited future fertility.

Uterine preservation surgery for placental polyp

AIM

To examine clinical and surgical performances of cases with placental polyps in which uterine preservation surgery was conducted.

METHODS

During the period September 2002 to April 2009, we examined eight cases (hysteroscopic resection, six cases; laparotomy, one case; dilatation and curettage, one case) diagnosed with placental polyp that had been treated with polyp extraction surgery. Imaging evaluation was done using magnetic resonance imaging and 2-D ultrasound.

RESULTS

Three of the eight cases (37.5%) had been first-time pregnancies. Most of our cases experienced minimal surgical manipulation after medical abortion. Among them, six cases (75%) were mid-term medical abortions, one case (12.5%) received no treatment after spontaneous abortion, and one case (12.5%) had postsurgical abortion (dilatation and curettage). All cases showed variable amount of blood flow in the internal mass and myometrium by color Doppler ultrasound. Magnetic resonance imaging angiography showed contrast effects in the intrauterine cavity and myometrium in selected cases. The average duration from diagnosis to surgery was 32 days (range, 11-105). Color Doppler revealed a reduction in blood flow in five cases during the waiting period until surgery with an average blood loss of 10 g (range, 0-20) during surgery.

CONCLUSION

Use of color Doppler ultrasound may be useful in diagnosing placental polyp. Although hysteroscopic resection of placental polyp is effective in patients hoping for uterine preservation, delaying timing of surgery may reduce blood loss during operative procedure.

Increased psychological trauma and decreased desire to have children after a complicated pregnancy

OBJECTIVE

Information about fertility desire and psychological sequelae after high-risk pregnancies are scarce in the literature. The aim of the present study is to investigate the psychological effects of high-risk pregnancies.

MATERIAL AND METHODS

The patients who had a history of severe preeclampsia, eclampsia or major hemorrhage during the peripartum period were enrolled as the study group and compared with the control subjects with respect to fear about new pregnancy, anxiety/ depression and post-traumatic stress disorder (PTSD) scores. The study was carried out by submitting a questionnaire form to the participants. Numbers of planned children before and after the last delivery were evaluated in both groups.

RESULTS

Fear about a new pregnancy was found to be significantly higher in the study group compared with the controls. There were no statistically significant difference between the two groups in terms of anxiety and depression. In terms of re-experience and avoidance in PTSD was significantly higher in the study group, however no significant difference was found for hyper-arousal.

CONCLUSION

Fear regarding new pregnancy is high and planning more children is decreased after high-risk pregnancies and PTSD symptom scores were higher after high-risk pregnancies.

Two cases of postmyomectomy pseudoaneurysm treated by transarterial embolization

Pseudoaneurysm resulting from hysteroscopic myomectomy is a rare clinical situation, and interventional radiologists are not traditionally involved in the management. To our knowledge, endovascular treatment of a pseudoaneurysm resulting from hysteroscopic myomectomy has not yet been reported in the English-language literature. Here, two such cases are reported, including one of a woman who later became pregnant. The case is unique because little is known about the influence of unilateral coil embolization of the uterine artery on fertility.

The hemodynamic basis for positional- and inter-fetal dependent effects in dual arterial supply of mouse pregnancies

In mammalian pregnancy, maternal cardiovascular adaptations must match the requirements of the growing fetus(es), and respond to physiologic and pathologic conditions. Such adaptations are particularly demanding for mammals bearing large-litter pregnancies, with their inherent conflict between the interests of each individual fetus and the welfare of the entire progeny. The mouse is the most common animal model used to study development and genetics, as well as pregnancy-related diseases. Previous studies suggested that in mice, maternal blood flow to the placentas occurs via a single arterial uterine loop generated by arterial-arterial anastomosis of the uterine artery to the uterine branch of the ovarian artery, resulting in counter bi-directional blood flow. However, we provide here experimental evidence that each placenta is actually supplied by two distinct arterial inputs stemming from the uterine artery and from the uterine branch of the ovarian artery, with position-dependent contribution of flow from each source. Moreover, we report significant positional- and inter-fetal dependent alteration of placental perfusion, which were detected by in vivo MRI and fluorescence imaging. Maternal blood flow to the placentas was dependent on litter size and was attenuated for placentas located centrally along the uterine horn. Distinctive apposing, inter-fetal hemodynamic effects of either reduced or elevated maternal blood flow, were measured for placenta of normal fetuses that are positioned adjacent to either pathological, or to hypovascular Akt1-deficient placentas, respectively. The results reported here underscore the critical importance of confounding local and systemic in utero effects on phenotype presentation, in general and in the setting of genetically modified mice. The unique robustness and plasticity of the uterine vasculature architecture, as reported in this study, can explain the ability to accommodate varying litter sizes, sustain large-litter pregnancies and overcome pathologic challenges. Remarkably, the dual arterial supply is evolutionary conserved in mammals bearing a single offspring, including primates.

MR imaging evaluation of fibroid clearance following open myomectomy for massive/multiple symptomatic fibroids

PURPOSE

To evaluate the technical success of total fibroid clearance at open myomectomy for massive and/or multiple symptomatic fibroids using MR imaging (MRI) as the imaging modality.

METHODS

The study group comprised 27 women [mean age 37.4 ± 6.9 years (range 27-53)] who underwent open myomectomy for the treatment of massive/multiple symptomatic fibroids at our institution between January 2009 and April 2010. Myomectomy was performed with the intention of achieving complete fibroid clearance. Pre- and postmyomectomy MRI was performed to assess changes in uterine volume and fibroid burden. Periprocedural data (including blood loss and complications) and relief of clinical symptoms at follow-up were also recorded.

RESULTS

The mean time to MRI and clinical follow-up was 10 months (range 6-15 months). The mean uterine volume premyomectomy was 795 ± 580 cc and postmyomectomy was 123 ± 70 cc (p < 0.001). The mean percentage reduction in uterine volume was 80.3 % (range 43.0-98.1 %). Of the 10/27 (37.0 %) women with residual fibroids at follow-up: 7 patients had fibroids measuring up to 1 cc in volume, 3 patients had fibroids measuring up to 6 cc. Postoperative adnexal seromas were observed in 6/27 (22.2 %) patients. The clinical success rates of myomectomy amongst the 22/27 (81 %) responders were: 73 % for menorrhagia, 64 % for pain, and 36-64 % for mass-related symptoms.

CONCLUSIONS

Using MRI, we have confirmed that open myomectomy can achieve total or near-total fibroid clearance in the majority of patients with massive and/or multiple fibroids.

Medical treatment of uterine leiomyoma

Uterine leiomyomas (also called myomata or fibroids) are the most common gynecologic tumors in the United States. The prevalence of leiomyomas is at least 3 to 4 times higher among African American women than in white women. Pathologically, uterine leiomyomas are benign tumors that arise in any part of the uterus under the influence of local growth factors and sex hormones, such as estrogen and progesterone. These common tumors cause significant morbidity for women and they are considered to be the most common indication for hysterectomy in the world; they are also associated with a substantial economic impact on health care systems that amounts to approximately $2.2 billion/year in the United States alone. Uterine myomas cause several reproductive problems such as heavy or abnormal uterine bleeding, pelvic pressure, infertility, and several obstetrical complications including miscarriage and preterm labor. Surgery has traditionally been the gold standard for the treatment of uterine leiomyomas and has typically consisted of either hysterectomy or myomectomy. In recent years, a few clinical trials have evaluated the efficacy of orally administered medications for the management of leiomyoma-related symptoms. In the present review, we will discuss these promising medical treatments in further detail.

Three-dimensional power Doppler assessment of pelvic structures after unilateral uterine artery embolization for postpartum hemorrhage

Delayed postpartum hemorrhage, defined as bleeding following delivery up to 6 weeks postpartum, is a risk following cesarean or vaginal delivery. Episodes most commonly occur between 8 and 14 days postpartum. Here, we present a case of a 24-year-old woman presenting with delayed postpartum hemorrhage 14 days after delivery, which later proved to be caused by left uterine artery hemorrhage. The hemorrhage was refractory to local treatment and required invasive measures to prevent hypotensive shock. In lieu of a hysterectomy, a unilateral uterine artery embolization (UAE) was performed to preserve fertility in this 24-year-old patient. Three-dimensional power Doppler ultrasonography was performed 3 weeks after UAE to assess the volume and vascularity of the pelvic structures. This case illustrates a viable intervention for women with postpartum hemorrhage who desire to preserve future fertility, as well as a method to detect structural and vascular changes after the treatment to evaluate their future fertility prospects.

Uterine artery embolization for emergent management of postpartum hemorrhage associated with placenta accreta

BACKGROUND

Although uterine artery embolization (UAE) is a well-recognized alternative treatment for postpartum hemorrhage (PPH) with a high clinical efficacy, the reported success rate of UAE for PPH associated with placenta accreta (PA) is lower. Recently, with advances in techniques and expertise, a few studies have reported favorable results of UAE in controlling PPH in the setting of PA.

PURPOSE

To evaluate the efficacy of UAE in the emergent management of intractable PPH associated with PA.

MATERIAL AND METHODS

Seventeen consecutive patients who underwent emergent UAE for the management of PPH associated with PA were included in this retrospective study. Medical records were reviewed regarding the delivery and UAE procedure. Follow-up gynecologic outcomes after UAE were obtained by telephone interview.

RESULTS

UAE successfully controlled PPH in 14 patients (82.4%). Three patients underwent hysterectomy after UAE failed to stop the bleeding. All hysterectomy cases were accompanied by uterine atony or total placenta previa. Relevant gynecologic findings were obtained from 10 patients; three patients were breastfeeding and seven patients resumed normal menstruation, including one pregnancy.

CONCLUSION

UAE appears to be a safe and effective means by which to control PPH associated with PA. PA complicated by uterine atony or placenta previa may be at increased risk of UAE failure.