A new in-bag system to reduce the risk of tissue morcellation: development and experimental evaluation during laparoscopic hysterectomy

Contained Power Morcellation in Laparoscopic Uterine Myoma Surgeries: A Brief Review

Uterine fibromas are the most common benign uterine tumors. Although the majority of leiomyomas remain asymptomatic, they can cause serious clinical problems, including abnormal uterine bleeding, pelvic pain, and infertility, which require effective gynecological intervention. Depending on the symptoms as well as patients' preferences, various treatment options are available, such as medical therapy, non-invasive procedures, and surgical methods. Regardless of the extent of the surgery, the preferred option is the laparoscopic approach. To reduce the risk of spreading occult malignancy and myometrial cells associated with fragmentation of the specimen before its removal from the peritoneal cavity, special systems for laparoscopic contained morcellation have been developed. The aim of this review is to present the state-of-the-art contained morcellation. Different types of available retrieval bags are demonstrated. The advantages and difficulties associated with contained morcellation are described. The impact of retrieval bag usage on the course of surgery, as well as the effects of the learning curve, are discussed. The role of contained morcellation in the overall strategy to optimize patient safety is highlighted.

The Future of Minimal-Access Myoma Surgery with In-Bag Contained Morcellation

Contained electromechanical morcellation has emerged as a safety approach for laparoscopic myomatous tissue retrieval. This retrospective single-center analysis evaluated the bag deployment practicability and safety of electromechanical in-bag morcellation when used for big surgical benign specimens. The main age of patients was 39.3 years (range 21 to 71); 804 myomectomies, 242 supracervical hysterectomies, 73 total hysterectomies, and 1 retroperitoneal tumor extirpation were performed. A total of 78.7% of specimens weighed more than 250 g (n = 881) and 9% more than 1000 g. The largest specimens, weighing 2933 g, 3183 g, and 4780 g, required two bags for complete morcellation. Neither difficulties nor complications related to bag manipulation were recorded. Small bag puncture was detected in two cases, but peritoneal washing cytology was free of debris. One retroperitoneal angioleiomyomatosis and three malignancies were detected in histology (leiomyosarcoma = 2; sarcoma = 1); therefore, patients underwent radical surgery. All patients were disease-free at 3 years follow-up, but one patient presented multiple abdominal metastases of the leiomyosarcoma in the third year; she refused subsequent surgery and was lost from follow-up. This large series demonstrates that laparoscopic bag morcellation is a safe and comfortable method to remove large and giant uterine tumors. Bag manipulation takes only a few minutes, and perforations rarely occur and are easy to detect intraoperatively. This technique did not result in the spread of debris during myoma surgery, potentially avoiding the additional risk of parasitic fibroma or peritoneal sarcoma.

Mechanical and leakage integrity testing considerations for evaluating the performance of tissue containment systems

Tissue containment systems (TCS) are medical devices that may be used during morcellation procedures during minimally invasive laparoscopic surgery. TCS are not new devices but their use as a potential mitigation for the spread of occult malignancy during laparoscopic power morcellation of fibroids and/or the uterus has been the subject of interest following reports of upstaging of previously undetected sarcoma in women who underwent a laparoscopic hysterectomy. Development of standardized test methods and acceptance criteria to evaluate the safety and performance of these devices will speed development, allowing for more devices to benefit patients. As a part of this study, a series of preclinical experimental bench test methods were developed to evaluate the mechanical and leakage performance of TCS that may be used in power morcellation procedures. Experimental tests were developed to evaluate mechanical integrity, e.g., tensile, burst, puncture, and penetration strengths for the TCS, and leakage integrity, e.g., dye and microbiological leakage (both acting as surrogates for blood and cancer cells) through the TCS. In addition, to evaluate both mechanical integrity and leakage integrity as a combined methodology, partial puncture and dye leakage was conducted on the TCS to evaluate the potential for leakage due to partial damage caused by surgical tools. Samples from 7 different TCSs were subjected to preclinical bench testing to evaluate leakage and mechanical performance. The performance of the TCSs varied significantly between different brands. The leakage pressure of the TCS varied between 26 and > 1293 mmHg for the 7 TCS brands. Similarly, the tensile force to failure, burst pressure, and puncture force varied between 14 and 80 MPa, 2 and 78 psi, and 2.5 N and 47 N, respectively. The mechanical failure and leakage performance of the TCS were different for homogeneous and composite TCSs. The test methods reported in this study may facilitate the development and regulatory review of these devices, may help compare TCS performance between devices, and increase provider and patient accessibility to improved tissue containment technologies.

To Laparoscopically Preserve Fertility in Intraabdominal Giant Myoma with Application of Contained In-Bag Morcellation: Mission Impossible?

A technical video was produced to demonstrate in step-by-step fashion a multiple contained myomectomy of a 20 × 30 cm giant myoma and seven additional fibroids found in the same patient, which required two different types of specimen retrieval bags for the electronic power morcellation. This complete surgical procedure included leiomyomata enucleation, contained in-bag electronic power morcellation, uterine reconstruction and the application of an adhesion prophylactic medical product.

Total surgical time in laparoscopic supracervical hysterectomy with laparoscopic in-bag-morcellation compared to laparoscopic supracervical hysterectomy with uncontained morcellation

Background

A possible solution to the problem of cell dissemination through laparoscopic uncontained morcellation during laparoscopic supracervical hysterectomy (LASH) is the use of laparoscopic in-bag morcellation. One criticism regarding the use of in-bag morcellation is the additional surgical time associated with this procedure.

Objectives

In this retrospective study we compared the total surgical time in LASH with laparoscopic in-bag morcellation (107 cases from 2016-2018) and LASH with uncontained morcellation (47 cases from 2015-2017).

Materials and Methods

All surgeries were performed in the same department of minimally invasive gynaecological surgery by a total of three experienced surgeons for the indication of bleeding disorder and / or dysmenorrhea.

Main outcome measures

We measured and compared total surgical time, surgical outcome, blood loss and complications in LASH with in-bag morcellation and with uncontained morcellation.

Results

Total surgical time in both procedures do not show a significant difference. Considering the learning curve in laparoscopic bag use, the total surgical time in LASH with laparoscopic in-bag morcellation is shorter than total surgical time in LASH with uncontained morcellation. Laparoscopic in-bag morcellation consumes time for bag use and handling, but saves time as it eliminates the need for meticulous sampling of lost tissue fragments and the complex lavage of the peritoneal cavity after morcellation. There is no difference between both groups in terms of blood loss, complications and surgical results.

Conclusion/What is new?

We conclude that LASH with in-bag morcellation is not related to additional surgical time when compared to LASH with uncontained morcellation.

Preclinical safety testing and initial experience of a morcellation bag with four sealable ports

Electromechanical morcellation-so called power morcellation-is a minimally invasive approach to remove bulky lesions such as uterine fibroids. The spread of benign and malignant tissue due to morcellation is a major concern that might limit the use of laparoscopic interventions. We present an in vitro evaluation of the safety characteristics of a four-port endobag with closable trocar sleeves, and describe physical properties of the bag that may or may not allow passage through the hole. In addition, we report our preliminary experience of this tool when used for laparoscopic supracervical hysterectomies. The behavior of the endobag during the extraction process was analyzed by extracting opened and re-sealed bags filled with 20 ml blue dye solution through a wooden template, with incisions measuring 10 to 24 mm. The endobag was used in 50 subtotal hysterectomies during the morcellation procedure. In the in vitro test, no dye loss was recorded for incisions measuring 11-24 mm. The mean force required to pull the bag through the template was inversely proportional to incision size. No bag rupture occurred during the surgical procedures. The mean time taken to prepare the bag for morcellation was 7.1 min (range, 4-14 min), the mean duration of subtotal hysterectomy was 53.4 min (range, 20-194 min). The mean weight of the removed body of the uterus was 113.8 g (range, 13-896 g), the mean weight of tissue and fluid remaining in the bag after morcellation 7.9 g (range, 0-39 g). In the in vitro setting, the improved endobag signifies greater patient safety during bag extraction, along with less tissue traumatization due to a smaller incision in the abdominal wall. The improved ergonomic features of the bag permit the insertion of three trocars in the lower abdomen and avoid closure of unused access ports. Our preliminary experience has shown that the device can be used under routine conditions. Failure rates will be evaluated in future studies.

Iatrogenic Port Site Parasitic Myoma; Case Report and Literature Review

Introduction

We report a case of iatrogenic parasitic myoma of the anterior abdominal wall and discuss the differential diagnosis, treatment, and prevention of complication with relevant literature.

Case Report

A 33-year-old woman presented with anterior abdominal wall mass 3 years after initial laparoscopic myomectomy surgery. A mass with a 38 × 26 mm diameter was observed in the anterior abdominal wall at the site of inferior left side port of previous surgery. It was excised from the anterior abdominal wall outside of the peritoneum, below the fascia. The pathologic examination of the excised mass revealed cellular myoma. This case is the 4th port site parasitic myoma in literature.

Conclusion

The risk of implantation and subsequent growth of minute myoma fragments should be kept in mind during morcellation procedures and, in order to avoid such complications, all fragments should be tracked during morcellation. The inspection of trocar sites after the removal of trocars for retained fragments would prevent such recurrences.

Inbag Morcellation Applied to the Laparoscopic Surgery of Leiomyoma: A Randomized Controlled Trial

Objective

To evaluate the efficacy and safety of an endoscopic bag during laparoscopic morcellation of leiomyoma or myomatous uterus.

Materials and Methods

A total of 48 patients with symptomatic leiomyoma were randomized for laparoscopic morcellation in two groups: group A with a specific endoscopic bag or group B without any bag. The primary outcome measure was the detection of smooth muscle cells from washing after power morcellation determined by peritoneal cytology and immunohistochemistry (IHC).

Results

Cytology and IHC from group A did not revealed any smooth muscle cells, while 29% of cases (7/24) from group B were positive (p = .009). The duration of the surgical procedure was the same in both groups. The duration of positioning the bag did not change significantly during the study. Only in one case the use of the bag was difficult due to a low pneumoperitoneum.

Conclusions

The use of a morcellation bag is efficient to prevent the spread of smooth muscle cells during the morcellation of leiomyoma or myomatous uterus. This study confirms the feasibility and the safety of the laparoscopic inbag morcellation versus open morcellation.

The Medical Device Applied to Uterine Fibroids Morcellation: Analysis of Critical Biological Issues and Drawbacks from A Medical-Legal Prospective

Following the FDA safety communication of 2014 increasing attention has been to the treatment of uterine fibroids, due to the suspicion of a potential leiomyosarcoma (ULM). FDA banned the use of power morcellation in the US, since this technique is likely to spread malignant cells from an unsuspected ULM. We criticized the medical legal consequences of this banning among gynecologists and patients, focusing on the drawbacks of biology and surgery. The authors analyzed literature data on one side, on the incidence, diagnosis and treatment of leiomyoma and ULM, and the other side, on the power morcellations and related critical issues, trying to highlight their main controversial aspects and to outline the possible impact on patients and on medical responsibility. The alternative methods to power morcellation are more invasive surgical solutions (as mini laparotomy or culdotomy), which inevitably involve associated risks with the surgical procedure as such and always request the containing bags. Although the in-bag morcellation is a promising technique, currently the used devices are largely off-label. This highlights the surgical risk, in case of complications, of suffering for malpractice claims both for not having used a containment system, favoring the spread of the neoplasm, and for its off-label use. Since the diagnosis of ULM is by histology after surgery, the fear of legal consequences or medical malpractice for unknown ULM power morcellation, should be targeted to analyze, in terms of cost/benefit ratio, the surgical priority. It should focus on the prevention of the risk of having a rare and statistically limited ULM or on the surgical-related complications, often linked to a slowdown minimally invasive surgery, or on the use of the authorized in-bag morcellations.

In Vitro Leakage Testing of Tissue Containment Bags When Subjected to Power Morcellation Forces

STUDY OBJECTIVE

To determine the ability of tissue containment systems to prevent leakage of cancer cell surrogates when subjected to forces encountered during power morcellation procedures.

DESIGN

In vitro study.

SETTING

Medical device research laboratory.

INTERVENTIONS

Samples from 7 different legally marketed tissue containment bags (1 of which is indicated for power morcellation) were subjected to dye and bacteriophage penetration tests at pressures ranging from 0.5 to 50 times the insufflation pressure. The minimum pressure required to cause bag leakage was measured. Subsequently, the morcellation leakage safety factor for each bag was determined as the ratio of the minimum leakage pressure of the bag to the total pressure contributed from insufflation pressure and mechanical forces acting during the power morcellation procedure.

MEASUREMENT AND MAIN RESULTS

The leakage performance of the bags varied markedly from brand to brand. No correlation was found between leakage pressure and the bag material or the total bag thickness. The leakage pressures ranged from 26 mmHg to >1293 mmHg for the 7 bags, and safety factors ranged from 1 to 50 when only the insufflation pressure was considered. However, if the morcellation forces were included in the calculation, the safety factor dropped by 6-fold for all brands and dropped below 1, indicating likelihood of leakage, for 2 of the 7 brands.

CONCLUSION

This study provides a mechanism for more realistically simulating the conditions experienced by containment bags during morcellation and quantifying the level of safety provided by the bags.

Comparison of the Technical Feasibility and Safety of Three Contained Morcellation Techniques: A Pilot Study in an Animal Model

STUDY OBJECTIVE

To compare 3 laparoscopic contained morcellation techniques in terms of feasibility and safety.

DESIGN

Pilot study in an animal model (Canadian Task Force classification II-1).

SETTING

Gynecologic oncology department at a cancer institute in Japan.

PATIENTS

Porcine model.

INTERVENTIONS

Three contained morcellation techniques were tested, each multiple times in 1 of 3 anesthetized female pigs: manual morcellation (8 times), dual-site power morcellation (8 times), and single-site power morcellation (6 times). All were tested on beef tongue introduced abdominally.

MEASUREMENTS AND MAIN RESULTS

The following variables were compared: bag insertion time, morcellation time, bag removal time, total in-bag morcellation time, and the volume of pneumoperitoneum CO₂ consumed. Bag rupture was evaluated ex vivo on completion of the procedure. Bag insertion time (in minutes) was significantly greater for dual-site morcellation (10.91 ± 3.38) than for manual (4.58 ± 2.47, p = .003) or single-site power (7.25 ± .77, p = .014) morcellation. Bag removal time (in minutes) was also significantly greater for dual-site morcellation (.85 ± .11 vs .27 ± .14, p<.001, vs .33 ± .59, p = .001). Total in-bag morcellation time, although greatest for manual morcellation at 21.4 ± 10.2 minutes, did not differ significantly between techniques. CO₂ consumption was significantly low for manual morcellation. Visual inspection revealed no bag damage when manual morcellation was performed, but bag damage occurred in 3 dual-site cases and in 1 single-site case.

CONCLUSION

Considering preventing specimen leakage as the main aim of contained morcellation, the bag used for power morcellation needs improvement. Although manual morcellation requires an umbilical wound of about 25 mm, the absence of bag damage, acceptable total morcellation time, relatively low CO₂ consumption, and nonuse of a power device, which translate to an economic benefit, lead us to conclude that manual morcellation will remain advantageous into the future.

Occult Malignancy Rate of 1498 Hysterectomies or Myomectomies with Morcellation: A Retrospective Single-Arm Study

Background and Purpose

Since April 2014, the FDA warns against the use of morcellation during minimally invasive uterine surgery because of the risk of occult malignant spreading in the abdominal cavity. It is clear, however, that more studies are needed to define the incidence of occult uterine cancers, its risk factors, preoperative identification and postoperative follow-up. The present retrospective single-arm study defines the prevalence of occult uterine malignancies in a large group of patients treated with hysterectomy or myomectomy for benign indications.

Methods

In the year of 2014, 1498 women admitted for a myomectomy or hysterectomy in benign conditions at the clinic of minimally invasive surgery (Minimal Invasive Chirurgie or MIC) in Berlin (Germany) were included in this study. The morcellated uterine specimens of operated patients were histologically analyzed for the presence of cancerous tissue.

Results

We detected malignancies in three of the 1498 women (0.2%): two patients had endometrial cancer, while we observed cervical cancer in situ in the third patient. No sarcoma was found.

Conclusion

We detected a very low prevalence of occult uterine malignancy which is in line with several other recent studies. To define a clear policy on the use of morcellation, more studies are required. In the meantime, patients should be informed about the risks of morcellation in case of undetected cancer prior to surgery.

Morcellation equipment: past, present, and future

PURPOSE OF REVIEW

This review was written in an effort to describe the evolution of power morcellation equipment from their creation to their current state. In addition, this review addresses the continuously evolving equipment involved with power morcellation and looks to describe where the field is headed in the future. In addition, recent professional and federal recommendations have changed the way power morcellation is being approached and has led to the development of contained morcellation systems, which, although in their infancy, are also being proven to be well tolerated options.

RECENT FINDINGS

This article will review the most current research on electronic power morcellation and the multiple attempts to prove superiority from the many different types of equipment, and also the many different approaches to morcellation. In addition, with the adaptation to contained morcellation, this review will cover research focused on optimizing a containment system and the techniques involved.

SUMMARY

In summary, this review is aimed at describing many of the currently available power morcellation products and contained morcellation systems in an effort to allow physicians to understand the different options available, and to discuss well tolerated, effective, and clinically proven techniques that can lead to improved surgical outcomes in the future.

Power morcellation-induced dissemination of sarcomatous component arising in leiomyoma

In 2014, the US Food and Drug Administration issued a safety communication warning against the use of power morcellators during laparoscopic hysterectomy or myomectomy. We report a case of peritoneal leiomyosarcomatosis attributable to power morcellation. A 49-year-old nulligravid woman presented with a huge uterine tumor measuring 15 × 8 cm that was diagnosed as benign leiomyoma on magnetic resonance imaging. The uterine tumor had shrunk to 13 × 7 cm after five treatment courses with a gonadotropin-releasing hormone agonist. She underwent laparoscopic hysterectomy using power morcellation; postoperative pathological diagnosis was benign leiomyoma. After 6 months, urinary ascites developed because of right ureteral rupture. She underwent laparotomy and was diagnosed with peritoneal leiomyosarcomatosis. Meticulous and thorough reevaluation of the morcellated specimens revealed a small component of leiomyosarcoma. Use of power morcellation should be minimized until the advent of novel methods that can perfectly differentiate benign from malignant uterine tumors preoperatively.

In-Bag Morcellation as a Routine for Laparoscopic Hysterectomy

Tissue morcellation during laparoscopic hysterectomy carries the risk of spreading cells from unsuspected malignancy. Contained morcellation inside a bag is supposed to minimize this risk. The present study evaluated routine use of in-bag morcellation during laparoscopic hysterectomy in a consecutive patient cohort (n = 49). The system used was More-Cell-Safe (A.M.I. Austria). Median age was 47 (35 to 76) years and BMI 25.1 (18.8 to 39.8). Indications for hysterectomy were fibroids (71.4%), adenomyosis (16.3%), prolapse (8.2%), and bleeding disorders (4.1%). 48 (98%) patients underwent supracervical hysterectomy and 1 (2%) underwent total hysterectomy. No unsuspected malignancy occurred. Median weight of extirpated tissue was 195 g (18 to 1110). Residual tissue and/or fluid in the bag amounted to 29 g (0 to 291). Median overall duration of surgeries was 100.5 min, and median time associated with the use of the bag was 10 min (5 to 28), significantly correlated with uterine volume (p = 0.0094) and specimen weight (p = 0.0002), but not with patient's BMI (p = 0.6970). Technical success rate for contained morcellation was 93.9%. Peritoneal washings after contained morcellation were all negative for malignant or smooth muscle cells.

Laparoscopic Supracervical Hysterectomy with In-Bag Morcellation in Very Large Uterus

Laparoscopic supracervical hysterectomy (LASH) is a safe and fast minimally invasive approach in hysterectomy. In order to extract the uterine body from the abdominal cavity, one condition for LASH is the morcellation of the tissue. The intra-abdominal dissemination of benign and occult malignant uterine cells is a possible risk of this method, which can be avoided by the use of special bags for laparoscopic in-bag morcellation. We present a case of laparoscopic supracervical hysterectomy with in-bag morcellation in a uterus of more than 1400 g. and describe that this minimal-access surgery is safe and feasible even in very large uteri. This case report is registered in Research Registry under the UIN researchregistry1810.

Power Morcellation Using a Contained Bag System

BACKGROUND AND OBJECTIVES

The well-known advantages of minimally invasive surgery make the approach well suited for hysterectomy and other gynecological procedures. The removal of specimens excised during surgery has been a challenge that has been answered by the use of power morcellation. With this study we sought to assess the feasibility of power morcellation within a specimen bag.

METHODS

This was a retrospective cohort study including patients from a private practice in suburban Chicago, Illinois, who underwent contained electromechanical power morcellation during a laparoscopic or robot-assisted hysterectomy or myomectomy from May 2014 through December 2015. Contained power morcellation was performed with the Espiner EcoSac 230 (Espiner Medical Ltd., North Somerset, United Kingdom) specimen bag. Descriptive statistics were performed for both categorical and continuous data.

RESULTS

Of the 187 procedures performed, 73.8% were myomectomies, and 26.2% were hysterectomies. The patients' mean age was 40 (range, 25-54) years and mean body mass index was 28.7 (range, 17.3-57.6). The average specimen weight was 300 g, with the largest weighing 2134 g. Estimated blood loss averaged 98.4 mL. The postoperative admission rate was 12.3%, most of which were due to nausea and urinary retention. Seventeen patients (9.1%) had postoperative complications, most of which were minor, and 4 (2.1%) were readmitted. There were no bag failures or complications that were due to the use of the specimen bag or to power morcellation.

CONCLUSIONS

Performing electromechanical power morcellation within the Espiner EcoSac 230 specimen bag was successfully performed in 187 patients with no bag-related complications. This method of contained power morcellation is feasible, reliable, and reproducible, even for a large specimen.

[Current controversies regarding power morcellation and future directions]

Modern surgery tends to the improvement of minimally invasive strategies. Laparoscopy, rooted in practices for years, supplanted laparotomy in many directions. Regarding the extraction of large uterus, morcellation is currently the only way to externalize surgical specimens (myomas, uterine), without increasing the skin opening while allowing to reduce postoperative complications compared to laparotomy. However, in 2014, the Food and Drug Administration (FDA) discourages the use of uterine morcellation because of oncological risk. This recommendation has been challenged by a part of the profession. Our review has sought to identify the evidence for and against the use of morcellation. We also tried to quantify surgical risk and the current means of prevention. The incidence of uterine sarcomas is still poorly identified and preoperative diagnostic facilities remain inadequate. The small number of retrospective studies currently available could not enable any recommendation. The evaluation of morcellation devices and the improvement of preoperative diagnosis modalities (imaging, preoperative biopsy) are to continue to minimize the oncological risk.

Morcellator's Port-site Metastasis of a Uterine Smooth Muscle Tumor of Uncertain Malignant Potential After Minimally Invasive Myomectomy

Since the safety warning from the US Food and Drug Administration on the use of power morcellators, minimally invasive procedures involving the removal of uterine myomas and large uteri are under scrutiny. Growing evidence suggests that morcellation of undiagnosed uterine malignancies is associated with worse survival outcomes of patients affected by uterine sarcoma. However, to date, only limited data regarding morcellation of low-grade uterine neoplasms are available. In the present article, we reported a case of a (morcellator) port-site implantation of a smooth muscle tumor that occurred 6 years after laparoscopic morcellation of a uterine smooth muscle tumor of uncertain potential. This case highlights the effects of intra-abdominal morcellation, even in low-grade uterine neoplasms. Caution should be used when determining techniques for tissue extraction; the potential adverse consequences of morcellation should be more fully explored.

First clinical experiences using a new in-bag morcellation system during laparoscopic hysterectomy

INTRODUCTION

Endoscopic techniques have successfully reduced the invasiveness of hysterectomy, when compared to open procedures. Power morcellation, as a part of the minimal invasive concept, carries the risk of disseminating cells from the tissue specimen. The present observational study reports on first experiences using a new system (More-Cell-Safe, A.M.I., Austria) for contained in-bag morcellation during laparoscopic hysterectomy.

MATERIALS AND METHODS

The dual opening system allows two-port access without bag puncture. The optic is protected against spread cell contamination with a disposable sleeve. Application data were prospectively recorded on the first n = 7 consecutive patients and compared to n = 7 preceding patients undergoing uncontained morcellation.

RESULTS

Bag system use was surgically successful in 6 of 7 cases (85.7 %). Morcellated specimen weight ranged from 205 to 638 g (mean 413.33 ± 176.85; median 413). In one patient, the uterine specimen (1050 g) proved too large to be placed into the bag. Average time associated to the bag use was 16.2 ± 7.65 min, ranging from 8.5 to 26.5 min (median 14 min). Removed bags contained bloody fluid with residual tissue fragments weighing overall between 21 and 85 g. Spread spindle cells were detected in two cases after uncontained morcellation, but not after in-bag morcellation.

CONCLUSION

The experiences from our small pilot series prove technical feasibility in the clinical setting.