A prospective, randomized study comparing laparoscopic ovarian cystectomy versus fenestration and coagulation in patients with endometriomas

Management of chronic pelvic pain

Chronic pelvic pain is a complex condition that requires evaluation of the reproductive, gastrointestinal, urologic, musculoskeletal, psychological, and neurological systems. Usually, diagnosis and management entail identifying a network of disorders rather than a single cause of pain with a definitive cure. Only disorders that we commonly encounter in our practice will be discussed in this review.

Morphological study of the residual ovarian tissue removed by laparoscopy or laparotomy in adolescents with benign ovarian cysts

BACKGROUND/PURPOSE

The stripping of benign ovarian cysts has been reported to be preferable to cyst wall ablation. The procedure can be performed via either an open or laparoscopic approach. The aim of our study was to evaluate the efficacy of the technique of stripping performed by laparoscopy and laparotomy in the treatment of benign ovarian masses in the pediatric age group with respect to healthy ovarian tissue.

METHODS

This retrospective study evaluated all the pediatric or adolescent patients admitted during a 5-year period (2006-2010) for a suspected benign ovarian cyst treated with a laparoscopic technique or traditional open surgery to remove the cyst. The morphological characteristics of the tissue were graded on a semiquantitative scale from 0 to 4.

RESULTS

Thirty patients were treated and divided in 2 groups: group A laparoscopy (18 patients) and group B open (12 patients). The median age was 9.1 years. No ovarian tissue could be observed in 26 cases (86.7%). In the 4 remaining (2 laparoscopic and 2 open) cases (13.3%), ovarian tissue was found, but never more than 1 mm in thickness. This finding was always in endometriotic cysts.

CONCLUSIONS

We demonstrated that, in the pediatric population, no ovarian tissue is removed together with the cyst if this is nonendometriotic. The type of surgical procedure does not influence the removal of ovarian tissue. Laparoscopic stripping of ovarian cysts is the preferable surgical procedure in patients with prospective potential fertility because of their young age.

Minimally invasive gynecologic procedures

PURPOSE OF REVIEW

To evaluate different surgical options for the treatment of endometriomas. A heated debate is currently under way between advocates of excisional surgery and the ablative approach. With papers increasingly focusing on ovarian reserve after endometrioma surgery, a review was mandatory.

RECENT FINDINGS

Excisional and ablative surgery are well known procedures. This paper describes a combined technique that allows preservation of ovarian volume and antral follicle count. The question of postoperative ovarian reserve is widely discussed and the risk of malignancy is addressed.

SUMMARY

Some previously published reviews have probably too hastily concluded that excision is a better option than ablation. They failed to analyze the ovarian reserve, which is often significantly decreased after excisional surgery.This manuscript clearly explains the crucial importance of preserving the ovarian blood supply, as well as the ovarian cortex containing all primordial follicles, during surgery.

Ovarian surgery for bilateral endometriomas influences age at menopause

BACKGROUND

Questions remain as to whether surgical excision of ovarian endometriomas might cause damage to ovarian function. To test the hypothesis that ovarian surgery for endometrioma compromises ovarian function and accelerates ovarian failure.

METHODS

In a tertiary university Clinic, longitudinal prospective cohort study. Patients who underwent laparoscopy for endometriosis between March 1993 and November 2007 were assessed for inclusion in the study. A prospective follow-up at 3, 6 and 12 months then yearly was conducted. Evolution of menstrual pattern, symptoms and reproductive outcomes were investigated.

RESULTS

From over the 14-year period, 302 patients were included in the study. The mean age (±SD) of patients was 32.6 ± 5.6 years; the median duration of follow-up was 8.5 years (range 2-17 years). Menopause was documented in 43 women (14.3%) at a mean age of 45.3 ± 4.3 years (range 32-52 years). Women previously submitted to bilateral cystectomy were younger at menopause than those with monolateral endometrioma (42.1 ± 5.1 years versus 47.1 ± 3.5 years, P = 0.003). Premature ovarian failure (POF) was observed in 7 of 43 (16.3%) menopausal patients; the majority (4, 57.1%) after bilateral cystectomy. The relationship between the preoperative ovarian endometriomas total diameter and menopausal age was significant in case of surgery for bilateral endometriomas (R(2) = 0.754, P = 0.002).

CONCLUSIONS

Patients who had been operated on for bilateral endometriomas have an increased risk of POF. Ovarian parenchyma loss at the time of surgery seems related to cyst diameter. In the case of unilateral ovarian endometrioma, the contralateral intact ovary might adequately compensate.

Nonmalignant diseases and treatments associated with primary ovarian failure: an expanded role for fertility preservation

Cancer treatments can be detrimental to fertility; recent literature has focused on the efforts of fertility preservation for this patient population. It should be recognized, however, that several nonmalignant medical conditions and therapeutic interventions could be similarly hazardous to fertility. Some of these nonmalignant diseases and their treatments that can adversely impact the reproductive axis are gastrointestinal diseases, rheumatologic disorders, nonmalignant hematologic conditions, neurologic disorders, renal disorders, gynecologic conditions, and metabolic diseases. Their negative effects on reproductive function are only now being appreciated and include impaired ovarian function, endocrine function, or sexual function and inability to carry a pregnancy to term. Complications and comorbidities associated with certain diseases may limit the success of established fertility preservation options. Recent advances in fertility preservation techniques may provide these patients with new options for childbearing. Here, we review several fertility-threatening conditions and treatments, describe current established and experimental fertility preservation options, and present three initiatives that may help minimize the adverse reproductive effects of these medical conditions and treatments by raising awareness of the issues and options: (1) increase awareness among practitioners about the reproductive consequences of specific diseases and treatments, (2) facilitate referral of patients to fertility-sparing or restorative programs, and (3) provide patient education about the risk of infertility at the time of diagnosis before initiation of treatment.

Ovarian cystectomy versus laser vaporization in the treatment of ovarian endometriomas: a randomized clinical trial with a five-year follow-up

OBJECTIVE

To investigate the effect of two laparoscopic techniques for treatment of ovarian endometriomas on recurrence rate.

DESIGN

Prospective randomized clinical trial.

SETTING

University teaching hospital.

PATIENT(S)

Ninety women with ovarian endometriomas.

INTERVENTION(S)

Patients were randomly selected to undergo either laparoscopic cystectomy (group 1) or laser vaporization (group 2) of ovarian endometrioma.

MAIN OUTCOME MEASURE(S)

Recurrence, evaluated by ultrasound scan examination, was assessed at 12 and 60 months of follow-up.

RESULT(S)

Endometrioma recurrence rate was higher, though not significantly different, in group 2 at 60 months of follow-up. Nevertheless, at 12 months of follow-up recurrences were statistically higher in group 2.

CONCLUSION(S)

The comparison between laparoscopic laser ablation and laparoscopic cystectomy for ovarian endometriomas after long-term follow-up showed earlier recurrences and a higher recurrence rate in the laser group, although at 5 years of follow-up there were no statistically significant differences.

Risk factors for recurrence and re-recurrence of ovarian endometriomas after laparoscopic excision

AIM

Since ovarian endometrioma is frequently diagnosed in women of reproductive age, laparoscopic excision of the endometrioma is performed for most cases. However, endometriomas frequently recurs even after repeated surgical procedures. The aim of our study is to identify risk factors for recurrence and re-recurrence of endometriomas after the first and second laparoscopic excision.

MATERIAL & METHODS

We retrospectively evaluated 173 patients who had a minimum of one year postoperative follow-up after the laparoscopic excision of endometriomas. Ten and eight factors were evaluated to assess their effect on the risk of recurrence and re-recurrence, respectively. Factors were analyzed using univariate and the Cox regression test.

RESULTS

The overall rate of recurrence and re-recurrence were 45.1% and 45.5%, respectively. A high revised American Society for Reproductive Medicine score (1997) was associated with an increased risk of recurrence. Only postoperative pregnancy was associated with a decreased risk of recurrence. Short periods of normal menstruation without pregnancy or gonadotrophin-releasing hormone analogues from first surgery to recurrence were associated with higher rate of re-recurrence.

CONCLUSIONS

A high revised American Society for Reproductive Medicine score was a risk factor, and postoperative pregnancy was protective against recurrence. The patient with short periods of normal menstruation without pregnancy or gonadotrophin-releasing hormone analogues from first surgery to recurrence had a high risk of re-recurrence.

Vaporization of ovarian endometrioma using plasma energy: histologic findings of a pilot study

In ten ovarian endometriomas of diameter exceeding 30 mm, managed by complete vaporization of the inner surface using plasma energy followed by cystectomy, we performed histologic evaluation of the depth of necrosis and the effectiveness of endometrial tissue ablation. We observed that plasma energy allows the ablation of endometrial tissue with minimal damage to the ovarian parenchyma, which suggests that this technique might be of particular interest for women with risk factors of postoperative ovarian reserve impairment, such as recurrent and bilateral endometriomas.

Treatment of endometriosis with laparoscopic surgery today

Az endometriosis korszerű sebészi kezelésének célja a károsodott kismedencei anatómia helyreállításával az endometriosishoz társuló fájdalomtünetek csökkentése, illetve a teherbe esési esélyek javítása. Cikkünkben a különböző elhelyezkedésű kismedencei endometriosislaesiók eltávolításának műtéti lehetőségeit elemezzük. Az endometriosis sebészi kezelése döntően laparoszkópia útján valósul meg, míg a laparotomia alkalmazási köre egyre inkább beszűkült és csak speciális esetekre korlátozódik. A peritonealis endometriosis laesiói reszekció, elektrokoaguláció vagy lézervaporizáció segítségével kezelhetők, amelyek azonos mértékben csökkentik az endometriosishoz társuló fájdalomtüneteket, illetve javítják a teherbe esési esélyeket. Az endometrioma kezelésében hosszú éveken át kétféle műtéti megoldás terjedt el; a cisztatok eltávolítása az úgynevezett strippingtechnika segítségével, valamint a cisztatok megszüntetése az ablatiós műtéti technikával. Napjainkra egyértelműen bebizonyosodott, hogy a stripping előnyösebb az endometrioma ablatiójával szemben mind a fájdalomtünetek csökkenése, mind a reproduktív funkciók szempontjából. A mélyen infiltráló endometriosis kezelése jelenti a legnagyobb kihívást az endometriosis sebészetében. A mélyen infiltráló laesiók eltávolításában a lézertechnika alkalmazásának jut főszerep. A rectovaginalis septum endometriosisa esetén lézer segítségével a mélyen infiltráló laesio biztonsággal és maradéktalanul eltávolítható. Bélendometriosis esetén az érintett bélszakaszt szegmentális reszekcióval, discreszekcióval vagy az úgynevezett shavingtechnikával távolíthatjuk el. Leggyakrabban a szegmentális reszekciót alkalmazzuk, mivel egyedül ez esetben biztosítható a reszekciós szél biztos épsége. Az ureter endometriosisa esetén kisfokú érintettség mellett ureterolysis, míg obstruktív uropathia fennállásakor az ureter reszekciója javasolható. Az endometriosishoz társuló fájdalom hatékonyabb csökkentését célozza a praesacralis neurectomia és az uterusidegrost-ablatio. Ezen beavatkozások klinikai eredményessége azonban nem egyértelmű, az endometriosis kezelésében betöltött pontos szerepük tisztázása további vizsgálatokat igényel. Az endometriosis sebészetében a folyamatosan fejlődő műtéti technikák az endometriosislaesiók egyre teljesebb és hatékonyabb eltávolítását teszik lehetővé, amelynek köszönhetően egyre eredményesebben kezelhetők az endometriosishoz társuló klinikai tünetek és csökkenthető a betegség kiújulásának veszélye.

Ethanol sclerotherapy: a treatment option for ovarian endometriomas before ovarian stimulation

Several surgical treatment modalities have been described in cases of isolated or multiple ovarian endometriotic cysts. The aim of this preliminary study was to investigate and test the efficacy of ethanol sclerotherapy (EST) for recurrent endometriotic cysts, before ovarian stimulation in infertile patients with an adequate ovarian status. In the setting of a prospective comparative study, EST was proposed to 31 infertile patients with recurrence of ovarian endometriomas before inclusion in assisted reproduction cycles. Reproductive outcome was compared with that of patients who had previous laparoscopic cystectomy for recurrent endometriomas. The mean size of endometriomas treated with sclerotherapy was 38.6 +/- 11.2 mm in diameter. Ovarian cysts recurred in 12.9% of cases; at a mean time of 10 months after EST. Ovarian reserve and ovarian response to stimulation were better in the EST group than in the control group. Consequently, clinical and cumulative pregnancy rates of the study group were higher than those of the control group (48.3% versus 19.2%, P = 0.04; and 55.2% versus 26.9%, P = 0.03, respectively). Ethanol sclerotherapy may be a good alternative to surgical management of recurrent endometriotic cysts before assisted reproductive treatment. It could be advised for selected infertile patients.

Laparoscopic management of endometriosis: comprehensive review of best evidence

STUDY OBJECTIVE

To provide a comprehensive review of the best evidence available in the laparoscopic management of endometriosis for pain and/or fertility and to provide practical recommendations based on this information.

DESIGN

Review article of randomized controlled trials.

PATIENTS

Women with endometriosis.

METHODS

A systematic search was performed of the Cochrane Library and MEDLINE database for randomized controlled trials relating only to laparoscopic management of endometriosis. The information from 7 Cochrane review articles and 35 original randomized trials is presented in a clinically relevant question-and-answer format.

CONCLUSIONS

Awareness of endometriosis as a disease with substantial morbidity is vitally important. Laparoscopic treatment of endometriosis is beneficial for reducing pain and improving fertility. Laparoscopic presacral neurectomy, but not laparoscopic uterosacral nerve ablation, is a useful adjunct to conservative surgery for endometriosis in patients with a midline component of pain. Preoperative hormonal suppression with gonadotropin-receptor hormone analogue may be helpful in decreasing endometriosis disease scores. Postoperative hormonal suppression with either a gonadotropin-receptor hormone analogue or progestin (including the levonorgestrel intrauterine system) may be helpful in reducing pain and increasing time to recurrence of symptoms. Excisional cystectomy is the preferred method to treat endometrial cysts for both pain and fertility and may be aided by the use of mesna and initial circular excision. An absorbable adhesion barrier (Interceed), 4% icodextrin solution (Adept), and a viscoelastic gel (Oxiplex/AP, FzioMed, Inc., San Luis Obispd, CA; not available in the United States) are safe and effective products to help prevent adhesions in laparoscopic surgery to treat endometriosis.

Laparoscopic management of endometriomas using a combined technique of excisional (cystectomy) and ablative surgery

OBJECTIVE

To describe and evaluate a new technique of laparoscopic treatment of endometriomas that combines excisional and ablative surgery.

DESIGN

Descriptive and prospective study.

SETTING

Gynecology research unit in a university hospital.

PATIENT(S)

Fifty-two women under 35 years of age presenting for infertility and/or pelvic pain with endometriomas larger than 3 cm were included in the study. None had undergone any surgery for endometriosis.

INTERVENTION(S)

A large part of the endometrioma wall was first excised according to the cystectomy technique. After this first step, CO(2) laser was used to vaporize the remaining 10%-20% of the endometrioma wall close to the hilus.

MAIN OUTCOME MEASURE(S)

The feasibility of this new technique was assessed. Ovarian volume and antral follicle count (AFC) were compared between operated ovaries and nonoperated ovaries of patients with endometriosis and controls (women with male factor infertility).

RESULT(S)

The combined technique was possible in all cases. The volume of the ovary after the combined technique was similar to that of the contralateral normal ovary, as well as to that observed in infertile women without endometriosis presenting for male factor infertility. The AFC on day 2-5 showed the same number of antral follicles in all subgroups. Histopathology of the excised part of the endometrioma revealed the presence of follicles in only one case (2%). The pregnancy rate was 41% at a mean follow-up of 8.3 months. Recurrence of a small endometrioma was observed in only one case (2%).

CONCLUSION(S)

The combined technique (stripping and ablation) has proved not to be deleterious to the ovary.

Recurrence of endometriosis and its control

BACKGROUND Although surgery is currently the treatment of choice for managing endometriosis, recurrence poses a formidable challenge. To delay or to eliminate the recurrence is presently an unmet medical need in the management of endometriosis. To this end, proposals to investigate patterns of recurrence, to develop biomarkers for recurrence and to carry out biomarker-based intervention have been made. METHODS Publications pertaining to the recurrence of endometriosis and its related yet unaddressed issues were identified through MEDLINE. The reported recurrence rates, risk factors for recurrence, the effects of post-operative medication and causes of recurrence were reviewed and synthesized. In addition, several poorly explored issues such as time hazard function and mechanisms of recurrence were reviewed. Approaches to the development of biomarkers for recurrence and future intervention are discussed. RESULTS The reported recurrence rate was high, estimated as 21.5% at 2 years and 40-50% at 5 years. Few risk factors for recurrence have been consistently identified, and the evidence on the efficacy of the post-operative use of medication was scanty. The investigation on the patterns of recurrence may provide us with new insight into the possible mechanisms of recurrence and its control. The attempt to identify biomarkers for recurrence has started only very recently. CONCLUSIONS Much research is needed to better understand the patterns of recurrence and risk factors, and to develop biomarkers. One top priority is to develop biomarkers for recurrence, which may provide much needed clues to the possible mechanisms underlying recurrence and would allow the identification of patients with high recurrence risk, and permit for targeted intervention.

Does laparoscopic cystectomy and cauterization of endometriomas greater than 3 cm diminish ovarian response to controlled ovarian hyperstimulation during IVF-ET? A case-control study

AIMS

The objective of this study is to evaluate the in vitro fertilization and embryo transfer results of patients with endometriomas pretreated with laparoscopic cystectomy and cauterization compared with age-matched tubal infertility patients.

METHODS

Records of the in vitro fertilization and embryo transfer unit have been retrospectively reviewed from September 2000 to September 2004. Twenty-two patients who underwent surgery for endometriomas and participated in an in vitro fertilization and embryo transfer procedure, were detected and age-matched with 22 tubal factor infertility patients.

RESULTS

Higher follicle numbers greater than 14 mm in size were achieved in the tubal infertility group than the endometriosis group. Duration of hyperstimulation, number of ampoules used, good quality embryos, transferred embryos and fertilization rates were similar in each group. Clinical pregnancy rates per cycle, determined as fetal heart beat demonstration on sonography, were 45% and 36% for the endometrioma group and the tubal infertility group respectively.

CONCLUSIONS

Laparoscopic cystectomy and cauterization for ovarian endometriomas decreases ovarian follicle reserve and does not impede pregnancy rate per cycle during in vitro fertilization and embryo transfer procedure.

Excisional surgery versus ablative surgery for ovarian endometriomata

BACKGROUND

Endometriomata are endometriotic deposits within the ovary. The surgical management of these blood filled cysts is controversial. The laparoscopic approach to the management of endometriomata is favoured over a laparotomy approach as it offers the advantage of a shorter hospital stay, faster patient recovery and decreased hospital costs. Currently the commonest procedures for the treatment of ovarian endometriomata are either excision of the cyst capsule or drainage and electrocoagulation of the cyst wall.

OBJECTIVES

The objective of this review was to determine the most effective technique of treating an ovarian endometrioma; either excision of the cyst capsule or drainage and electrocoagulation of the cyst wall. The end-points assessed were the relief of pain, recurrence of the endometrioma, recurrence of symptoms and in women desiring to conceive the subsequent pregnancy rate, either spontaneous or as part of fertility treatment.

SEARCH STRATEGY

The reviewers searched the Cochrane Menstrual Disorders and Subfertility Group specialised register of trials (searched 3rd March 2007), the Cochrane Register of Controlled Trials (The Cochrane Library, Issue 3, 2007), MEDLINE (1966-August 2007), EMBASE (1980- March 2007) and reference lists of articles, the handsearching of relevant journals and conference proceedings and by contacting leaders in the field of endoscopic surgery throughout the world. The Cochrane Menstrual Disorders and Subfertility Group Trials Register is based on regular searches of MEDLINE, EMBASE, CINHAL and CENTRAL.

SELECTION CRITERIA

Randomised controlled trials of excision of the cyst capsule versus drainage and electrocoagulation of the cyst in the management of ovarian endometriomata.

DATA COLLECTION AND ANALYSIS

Reviewers assessed eligibility and trial quality.

MAIN RESULTS

No randomised studies of the management of endometriomata by laparotomy were found. Two randomised studies of the laparoscopic management of ovarian endometriomata of greater than 3cm in size, for the primary symptom of pain were included. Laparoscopic excision of the cyst wall of the endometrioma was associated with a reduced recurrence rate of the symptoms of dysmenorrhea (OR 0.15 CI 0.06-0.38), dyspareunia (OR 0.08 CI 0.01-0.51) and non-menstrual pelvic pain (OR 0.10 CI 0.02-0.56), a reduced rate of recurrence of the endometrioma (OR 0.41 CI 0.18-0.93) and with a reduced requirement for further surgery (OR 0.21 CI 0.05-0.79) than surgery to ablate the endometrioma. For those women subsequently attempting to conceive it was also associated with a subsequent increased spontaneous pregnancy rate in women who had documented prior sub-fertility (OR 5.21 CI 2.04-13.29). A further randomised study was identified that demonstrated an increased ovarian follicular response to gonadotrophin stimulation for women who had undergone excsional surgery when compared to ablative surgery (WMD 0.6 CI 0.04-1.16). There is insufficient evidence to favour excisional surgery over ablative surgery with respect to the chance of pregnancy after controlled ovarian stimulation and intra-uterine insemination (OR 1.40 CI 0.47-4.15) .

AUTHORS' CONCLUSIONS

There is good evidence that excisional surgery for endometriomata provides for a more favourable outcome than drainage and ablation with regard to the recurrence of the endometrioma, recurrence of pain symptoms, and in women who were previously subfertile, subsequent spontaneous pregnancy . Consequently this approach should be the favoured surgical approach. However in women who may subsequently may undergo fertility treatment insufficient evidence exists to determine the favoured surgical approach.