Determining a Learning Curve for Contained Hand Tissue Extraction: Perioperative Outcomes and Operative Time.

STUDY OBJECTIVE: To compare the operative time of contained hand tissue extraction with power morcellation and to quantify the learning curve required to develop this skill. DESIGN: A retrospective cohort study (Canadian Task Force classification II-3). SETTING: Lahey Hospital and Medical Center, a suburban academic tertiary care center serving a broad base of patients. PATIENTS: Eighty-eight women undergoing laparoscopic hysterectomy requiring morcellation or tissue extraction from 2012 through 2015. INTERVENTIONS: Power morcellation before the institution's ban on power morcellation and contained hand tissue extraction instituted in a response to the ban. MEASUREMENTS AND MAIN RESULTS: Data were collected to compare the operative time and perioperative outcomes of morcellation before discontinuation of the power morcellator and after adaptation of a contained hand tissue extraction protocol. The data were then used to determine a learning curve for the new procedure. Eighty-eight consecutive cases of laparoscopic hysterectomy requiring morcellation were identified during the study duration, with 46 patients undergoing power morcellation and 42 undergoing hand tissue extraction. The 2 groups were similar overall in body mass index (28.9 vs 29.5, p = .70), prior laparoscopy (28% vs 21%, p = .46) or laparotomy (39% vs 21%, p = .07), removal of the cervix (56% vs 86%, p < .01), and uterine weight (581 vs 628 g, p = .56). The hand tissue extraction group had an average operating room time of 170 minutes compared with 154 minutes (p = .08) for the power morcellation group. The 2 surgeons performed 32 and 10 hand tissue extractions, respectively, with a decrease in 0.7 and 3 minutes per case, respectively, over the course of 7 months (p = .3 and .6, respectively). CONCLUSION: Contained hand tissue extraction was similar to power morcellation in the total operative time. The learning curve of surgeons performing contained hand tissue extraction showed a nonsignificant trend toward improvement in the operative time with an increasing number of cases.

Contained tissue extraction using power morcellation: prospective evaluation of leakage parameters.

BACKGROUND: Safe tissue removal is a challenge for minimally invasive procedures such as myomectomy, supracervical hysterectomy, or total hysterectomy of a large uterine specimen. There is concern regarding disruption or dissemination of tissue during this process, which may be of particular significance in cases of undetected malignancy. Contained tissue extraction techniques have been developed in an effort to mitigate morcellation-related risks. OBJECTIVE: The objective of the study was to quantify perioperative outcomes of contained tissue extraction using power morcellation, specifically evaluating parameters of tissue or fluid leakage from within the containment system. STUDY DESIGN: This was a study including a multicenter prospective cohort of adult women who underwent minimally invasive hysterectomy or myomectomy using a contained power morcellation technique. Blue dye was applied to the tissue specimen prior to removal to help identify cases of fluid or tissue leakage from within the containment system. RESULTS: A total of 76 patients successfully underwent the contained power morcellation protocol. Mean time for the contained morcellation procedure was 30.2 minutes (±22.4). The mean hysterectomy specimen weight was 480.1 g (±359.1), and mean myomectomy specimen weight was 239.1 g (±229.7). The vast majority of patients (73.7%) were discharged home the same day of surgery. Final pathological diagnosis was benign in all cases. Spillage of dye or tissue was noted in 7 cases (9.2%), although containment bags were intact in each of these instances. CONCLUSION: Findings are consistent with prior work demonstrating the feasibility of contained tissue extraction; however, further refinement of this technique is warranted.