Anterior approach to laparoscopic uterine artery ligation

Herein is described an anterior approach to uterine artery ligation during laparoscopic myomectomy and total laparoscopic hysterectomy. The anterior leaf of the broad ligament is opened and the uterine artery is clipped lateral to its crossing over the ureter. Outcome measures were completion of the procedure laparoscopically and the need for transfusion postoperatively. Thirty-eight myomectomies and 28 difficult total laparoscopic hysterectomies (primarily uteri with large myomas) were performed, with 1 conversion to laparotomy during myomectomy and 1 during hysterectomy, and 1 transfusion after total laparoscopic hysterectomy. The anterior approach to uterine artery ligation is an alternative method for treatment of uterine artery occlusion during laparoscopic myomectomy or hysterectomy performed to treat large myomas.     

Multiple myomas treated with a temporary, noninvasive, Doppler-directed, transvaginal uterine artery clamp

A 43-year-old woman with menorrhagia, dysmenorrhea, and pelvic pain of several years' duration had a uterus enlarged by myomas to the size of a 16-week pregnancy. Her uterine arteries were noninvasively transvaginally identified and occluded for 6 hours with a clamp that was guided by audible Doppler ultrasound. Following removal of the clamp, blood flow in the uterine arteries returned immediately. Menorrhagia symptoms diminished. Three months following treatment, uterine volume decreased by 48.9%, and dominant myoma volume decreased by 77.2%.     

Temporary, transvaginal occlusion of the uterine arteries: a feasibility and safety study

A Doppler-guided, transvaginally applied paracervical clamp safely and effectively occluded the uterine arteries in 10 women. Following closure of the clamp, blood flow through the uterine arteries stopped; flow returned immediately upon clamp release. Average time of clamp closure was 26 minutes (range 10-59 min). No ureter was obstructed by clamp closure.     

Laparoscopic bipolar coagulation of uterine vessels to treat symptomatic leiomyomas

Laparoscopic bipolar coagulation of uterine vessels was performed in three women with symptomatic myomas who required conventional surgical treatment. Uterine size and dominant myoma size were assessed by ultrasonography before and after surgery. Both uterine arteries, as well as anastomosis zone of uterine arteries with ovarian arteries, were occluded in all three women. Surgery was uneventful, and patients were hospitalized for only 2 days. All women experienced improvement in symptoms with no complications. Postoperative ultrasound showed progressive reduction in size of the dominant myoma. A larger series and longer follow-up are required to evaluate long-term effects and to identify appropriate candidates.     

Transcatheter uterine artery embolisation to treat large uterine fibroids

Bilateral uterine artery embolisation was performed to treat eight women with symptomatic large fibroids requiring treatment. Uterine volume was quantitatively assessed by magnetic resonance imaging. Both uterine arteries were occluded effectively in all women, and the procedure was well tolerated, with a 24–36 hour admission for pain relief. The level of pain experienced was variable, but well controlled. Some women experienced intermittent vaginal discharge and pain following the procedure. Improvement of symptoms occurred in six of the seven women and the eighth woman conceived. There were no significant complications. At three months four women had a uterine volume of < 350 cm ³ . Embolisation appears to be a good alternative to surgery, but longer follow up is required to evaluate the long term effects and to determine those patients for whom the procedure is suitable.     

Laparoscopic uterine artery occlusion combined with myomectomy for uterine myomas

We sought to evaluate the clinical feasibility and mid- to long-term effects of laparoscopic uterine artery occlusion before myomectomy in the treatment of uterine myomas. A total of 566 patients with uterine myoma were treated by laparoscopic uterine artery occlusion before myomectomy from October 2001 through July 2007. Mean blood loss was 88.2 +/- 52.7 mL (95% CI 82.7-93.8). The highest postoperative temperature was 37.8 +/- 0.3 degrees C, and the postoperative morbidity was 5.7% (32/566). Number of days to the return of bowel movement was 1.9 +/- 0.5d and in hospital stay after surgery was 7.7 +/- 2.5d. Complications included 2 instances of subcutaneous emphysema, 1 of vaginal bleeding, and 3 of mild intestinal obstruction. At a median of 26.3 months (range 6-69 months) of follow-up, the rate of myoma recurrence was 3.0% (15/517), uterus volume reduction was 48.9%, and correction of menstruation abnormality was 97.1% (502/517). Laparoscopic uterine artery occlusion before myomectomy can expand myomectomy indications with better results.     

Uterine artery embolization for symptomatic uterine myomas

OBJECTIVE: To evaluate the role of uterine artery embolization as treatment for symptomatic uterine myomas. DESIGN: Medline literature review, cross-reference of published data, and review of selected meeting abstracts. RESULT(S): Results from clinical series have shown a consistent short-term reduction in uterine size, subjective improvement in uterine bleeding, and reduced pain following treatment. Posttreatment hospitalization and recovery tend to be shorter after uterine artery embolization compared with hysterectomy. Randomized controlled trials have not been conducted, and long-term efficacy has not been studied. A limited number of deliveries have been reported following uterine artery embolization for uterine myomas. CONCLUSION(S): Uterine artery embolization is a unique new treatment for symptomatic uterine myomas. Even without controlled studies, demand for this procedure has increased rapidly. Uterine artery embolization may be considered an alternative to hysterectomy, or perhaps myomectomy, in well-selected cases. At the present time, however, uterine artery embolization should not be routinely recommended for women who desire future fertility.     

Laparoscopic temporary clipping of uterine artery during laparoscopic myomectomy

Purpose

Our aim is to study the feasibility and effect of bilateral laparoscopic temporary occlusion of uterine arteries by special vascular clamps on blood loss during laparoscopic myomectomy.

Methods

Of 166 women with symptomatic uterine myomas necessitating surgical intervention who wished to retain their uteri, 80 underwent laparoscopic uterine artery clipping and myomectomy (experimental group) and 86 received laparoscopic myomectomy only (control group). Main outcome measures were operating time, number and weight of leiomyomas, blood loss, Doppler examination of the uterine arteries and complications of procedure.

Results

In the experimental group the median hemoglobin drop measured on day 3 postoperatively was 1.2?g/dl. In the control group the mean hemoglobin drop measured on day 3 postoperatively was 1.45?g/dl. The time needed to put the clips in place (the time from the opening of the retroperitoneum and the positioning of the clips) varied between 6 and 40?min. No patient required blood transfusion. There were no conspicuous complications.

Conclusion

The use of the clips has proved to be statistically effective in reducing hemoglobin loss during laparoscopic myomectomy.     

Role of laparoscopic uterine artery coagulation in management of symptomatic myomas: A prospective study using ultrasound and magnetic resonance imaging

STUDY OBJECTIVE: The aim of this study was to evaluate the efficacy of laparoscopic uterine artery coagulation (LUC) in symptomatic myomatous patients. DESIGN: Prospective study (Canadian Task Force classification II). SETTING: Tertiary care center PATIENTS: Twenty-one women with myomatous uteri. INTERVENTIONS: Laparoscopic uterine artery coagulation. MEASUREMENTS AND MAIN RESULTS: Laparoscopic uterine artery coagulation for myoma was performed by three-puncture laparoscopy, and the difference in uterine and/or myoma volume was determined every 3 months for 12 months clinically and using ultrasonographic and MRI calculations of uterine volume. In addition, pre and postprocedure uterine Doppler indices were determined. Main outcome measures were symptomatic improvement after LUC and reduction in volume calculated by ultrasonography and magnetic resonance imaging (MRI). All treated women reported less bleeding after treatment. At 12 months, a 57% reduction in bleeding was seen in these patients. The mean postoperative pictorial blood loss assessment was significantly lower at 12 months: 303 +/- 30.4 mL (95% CI 284-328) baseline versus 173.5 +/- 17.8 mL (95% CI 164-184) after treatment, p < .05. Postoperative pain was documented in all the patients with a visual analog scale, with a mean of 1.6 cm recorded. The mean reduction in uterine volume (pre- to post-LUC) was 195 +/- 24.3 cm3 (range 89-438). The mean operating time was 52.1 +/- 7.2 minutes (95% CI 49.8-55.4), and the mean estimated blood loss was 65.2 +/- 11.8 dL (95% CI 59.6-70.8). Mean hospitalization time was 32.3 +/- 6.6 hours (95% CI 29.2-35.4). The complication rates were low with the procedure (fever, infection). No patient required hysterectomy due to complications. Ninety percent of the women were satisfied with the procedure. CONCLUSION: Laparoscopic uterine artery coagulation is effective in the management of symptomatic myomas, reducing bleeding and the volume of both uterus and myomas as documented by ultrasonography and MRI. Laparoscopic uterine artery coagulation is a cost-effective and low-morbidity option compared with conventional approaches such as myomectomy or hysterectomy. If the patient's predominant complaint is the feeling of a mass and/or bleeding, alternative treatment options should be explored. The results of this study are encouraging, but more research is needed to validate the cost-effectiveness and long-term results.     

Childbirth and myoma treatment by uterine artery occlusion: do they share a common biology?

When the uterine arteries are bilaterally occluded, either by uterine artery embolization or by laparoscopic obstruction, women with myomas experience symptomatic relief. After the uterine arteries are occluded, most blood stops flowing in myometrial arteries and veins, and the uterus becomes ischemic. It is postulated that myomas are killed by the same process that kills trophoblasts: transient uterine ischemia. When the uterine arteries are bilaterally occluded, either by uterine artery embolization (UAE) or by laparoscopic obstruction, women with myomas experience symptomatic relief. After the uterine arteries are occluded, most blood stops flowing in myometrial arteries and veins, and the uterus becomes ischemic. Over time, stagnant blood in these arteries and veins clots. Then, tiny collateral arteries in the broad ligament (including communicating arteries from the ovarian arteries) open, causing clot within myometrium to lyse and the uterus to reperfuse. Myomas, however, do not survive this period of ischemia. This is unique organ response to clot formation and ischemia. What allows the uterus to survive a relatively long period of ischemia while myomas perish? Childbirth appears to be the predicate biology. Following placental separation, the uteroplacental arteries and the draining veins of the placenta are torn apart at their bases in the junctional zone of the myometrium and bleed directly into the uterine cavity. Left unchecked, every woman would bleed to death in less than 10 minutes after placental delivery. Most women do not bleed to death because vessels in the uterus clot after placental delivery. During pregnancy, clotting and lytic factors in blood increase many fold. Following delivery, uterine contractions continue, intermittently, periodically slowing the velocity of flowing blood through myometrium. The combination of slowed blood flow, elevated clotting proteins, and torn placental vessels (known as Virchow's triad) causes blood in myometrial arteries and veins to clot. Fibrinolytic enzymes later lyse clot in arteries and veins not associated with placenta perfusion, and the uterus is reperfused. Remnant placental tissue - primarily uteroplacental arteries and veins - does not survive this period of ischemia. Placental tissue dies and over weeks is sloughed into the uterine cavity. At the same time, residual endometrial tissue grows under the sloughing placental tissue thus re-establishing the endometrial lining. It is postulated that myomas are killed by the same process that kills trophoblasts - transient uterine ischemia.     

Transvaginal uterine artery ligation in a woman with uterine leiomyomas. A case report

BACKGROUND: Uterine artery embolization by interventional radiologic techniques is an effective and widely used modality in the management of uterine leiomyomas. Anatomically, uterine arteries can be approached transvaginally with an appropriate surgical technique. In this report, we describe a novel, minimally invasive vaginal technique that also occluded the uterine arteries successfully. CASE: A 45-year-old woman with symptomatic leiomyomas decided to undergo a vaginal hysterectomy. During the procedure, Doppler ultrasonography demonstrated the cessation of blood flow after dissection and ligation of uterine arteries bilaterally without cutting the uterosacral and cardinal ligaments. CONCLUSION: Transvaginal ligation of the uterine arteries is possible. If validated by further clinical investigation, this minimally invasive gynecologic technique could be useful in selected cases of uterine leiomyomas.     

Uterine artery embolisation for the treatment of symptomatic uterine fibroids: short-term results of work in progress

Bilateral uterine artery embolisation (UAE) was used to treat 11 women with symptomatic uterine fibroids. Uterine volume and dominant fibroid volume were assessed quantitatively by ultrasonography both before and at two and six months post procedure. Both uterine arteries were occluded effectively in all of the women, and the procedure was well tolerated, with hospital stays limited to 24-48 hours in all cases. An improvement of symptoms occurred in 10 of the 11 women. There were no significant complications. The mean percentage reductions in uterine volume and dominant fibroid volume at six months following the procedure were 45.32% and 56.34%, respectively. Bilateral uterine artery embolisation for the treatment of uterine fibroids is a minimally invasive technique with very good clinical results. This procedure may be considered as an alternative to hysterectomy, or myomectomy in properly selected cases.     

Comparative outcomes of hysteroscopic examinations performed after uterine artery embolization or laparoscopic uterine artery occlusion to treat leiomyomas

Hysteroscopic examination of the uterine cavity revealed that patients previously treated for intramural myoma(s) by uterine artery embolization had a significantly higher incidence of abnormal findings compared with patients treated by laparoscopic occlusion of uterine arteries (59.5% vs. 2.7%). In particular, there was a higher incidence of necrosis in the uterine cavity of patients subjected to uterine artery embolization (43.2%) compared with patients after surgical uterine artery occlusion (2.7%).     

Temporary clipping of the uterine artery during laparoscopic myomectomy—a new technique and the results of first cases

Bleeding is the most common complication in laparoscopic myomectomy. In this paper, we describe a new technique using Yasargil aneurysm clips to reduce blood loss during laparoscopic myomectomy by clipping the uterine arteries temporarily. Over a 7-month period, 13 patients with uterine fibroids larger than 5 cm underwent laparoscopic myomectomy with temporary clipping of both uterine arteries at their origin from the internal iliac artery. We assessed the clinical data of perioperative blood loss, operating time, hospital stay, complications, haemoglobin decrease and uterine artery Doppler flow prior to and after the procedure. No serious perioperative complications occurred. The mean number of removed fibroids was 7.5 (range 1–30), with an average total weight of 421 g (range 160–960 g). Mean Hb pre- vs. postoperatively was 12.5 g/cl vs. 10 g/cl. There was no significant change in the uterine artery flow prior to and after surgery. No transfusion was given to any of the patients. We conclude that temporary clipping of the uterine arteries prior to laparoscopic myomectomy is a safe procedure for controlling excessive blood loss without jeopardising the uterine blood supply.     

Selective uterine artery embolization in the management of uterine myomas

OBJECTIVE: To evaluate the effectiveness of uterine artery embolization in women with uterine myomas in terms of the clinical results for the relief of related symptoms. DESIGN: A pilot study on 26 women affected by uterine single myoma. SETTING: Tertiary level care in an university hospital. PATIENT(S): Twenty-six patients, aged 32 to 54 years, suffering of menorrhagia, pelvic pain, and abdominal mass for single myoma, intramural localization. INTERVENTION(S): Selective uterine artery embolization performed under peridural anesthesia. MAIN OUTCOME MEASURE(S): We measured the x-ray dose to which patients were exposed. Color power Doppler ultrasound examinations were performed during the follow-up evaluations at 1 to 6 months and 1 year after the procedure. RESULT(S): Uterine artery embolization was successfully performed in 100% of cases. The mean fluoroscopy time was of 20 minutes during the procedure. The mean dose of x-ray absorbed by the ovary was estimated at 18.7 cGy and the mean dose of x-ray absorbed by the skin was 126.7 cGy. A reduction of myoma volume of 55% was found at 6 months' ultrasound examination and 75% at the 1-year examination. CONCLUSION(S): Patients are well satisfied and have short recovery times with this procedure. Uterine artery embolization may be a valid alternative to traditional surgery.     

Medical treatment for uterine myomas

Uterine myomas are the most common benign tumors in the female reproductive tract. Most women with myomas are asymptomatic. Therefore, expectant observation and follow-up are often recommended for these myoma patients. However, myomas may cause menstrual symptoms, pelvic pain, pressure complaints, subfertility or pregnancy-related complications, with resultant requests for a definitive treatment. The management of myomas has become multidisciplinary in the past 20 years. Basically, the choice of treatment depends on the patient's age, the reason for treatment, the issue of fertility preservation, and the patient's preference. The treatment spectrum includes an expectant management, medical therapy, surgical intervention, uterine artery embolization or ablative techniques. Medical therapy is an option for women with symptomatic myomas who prefer non-surgical treatment, consider fertility preservation, or expect a less aggressive operation after shrinkage of the uterine volume. This review will summarize the recent well-documented drugs for the management of uterine myomas.     

Transcervical hysteroscopic myomectomy: long-term effects on abnormal uterine bleeding

OBJECTIVE: To evaluate the effectiveness of hysteroscopic myomectomy in the treatment of symptomatic submucous leiomyomas and long-term outcomes. STUDY DESIGN: A total of 107 patients with abnormal uterine bleeding (n = 84) and/or infertility (n = 23) were submitted to hysteroscopic resection. Main outcome measures: control of menorrhagia and reproductive outcome. RESULTS: Abnormal uterine bleeding was controlled in 68 out of 84 patients with one procedure; 15 needed a second procedure for incomplete resection. Five patients had menorrhagic pathology relapse. Among 23 patients with associated infertility pregnancy was achieved in eight cases, seven went to term and one miscarried; one patient needed a second procedure. The mean follow-up was 36 months (24-60). Three patients were lost at follow-up. CONCLUSIONS: Transcervical hysteroscopic resection of submucous myomas is effective for control of abnormal uterine bleeding. Further studies are needed to define the value of such procedure in the treatment of infertility. Short and long-term results are strictly correlated to the possibility of obtaining a complete resection, which is conditioned by degree (0, 1, 2) and number of myomas.     

Factors affecting early surgical intervention after uterine artery embolization

Uterine artery embolization (UAE) is an effective technique for the management of uterine myoma. However, complications of this procedure can be serious, including uterine infection and bowel necrosis in conjunction with necrosis of subserous or pedunculated myomas. Treatment failure is more likely to occur in the presence of submucosal myoma associated with a uterine infection or a large myoma of more than 8 cm. Accordingly, patients whose primary symptoms include submucosal myoma and menorrhagia are best treated with a hysteroscopic myomectomy or hysterectomy. The role of the gynecologist is crucial for most effective management and safe use of uterine artery embolization. TARGET AUDIENCE: Obstetricians & Gynecologists, Family Physicians LEARNING OBJECTIVES: After completion of this article, the reader will be able to list the complications of uterine artery embolization for fibroids, to describe postembolization syndrome, and identify the myomas that are more likely to fail uterine artery embolization.     

Laparoscopic uterine artery occlusion for symptomatic leiomyomas

STUDY OBJECTIVE: To describe a laparoscopic technique that safely occludes both uterine arteries, overcoming an altered surgical field resulting from scarring and/or uterine leiomyomatous growth. DESIGN: Prospective analysis (Canadian Task Force classification II-2). SETTING: Nonprofit community hospital. PATIENTS: Eight women with leiomyomas with abnormal uterine bleeding, pelvic pain or pressure, and/or anemia. INTERVENTION: Bilateral laparoscopic retroperitoneal uterine artery occlusion. MEASUREMENTS AND MAIN RESULTS: Occlusion at the initial track of the uterine artery was performed by laparoscopic coated ligature in six patients. In two obese patients with deep retroperitoneal space, vascular clips were placed endoscopically using the same dissecting technique. All patients were discharged within 20 hours after the procedure. All five women with abnormal bleeding reported satisfactory decrease; none reported amenorrhea. Of eight with preoperative pain or pressure, seven reported complete disappearance and one significant relief. All three patients with anemia had normal red cell counts after 1 month. CONCLUSION: Laparoscopic uterine artery occlusion using a lateral retroperitoneal technique is safe and effective in women with pelvic scarring and altered pelvic anatomy.