Implementing robotic surgery to gynecologic oncology: the first 300 operations performed at a tertiary hospital

Robotic surgery in endometrial cancer: first Polish experience

In Poland, robotic surgery is nowadays perceived as a new method of surgical treatment in endometrial cancer patients. We aim to present the first Polish group of endometrial cancer patients treated using robotic surgery. The analysis was based on 79 patients with mean age of 59.72 ± 11.709 (range 27-83) years and endometrial cancer scheduled for surgical treatment. Mean BMI was 31.38 ± 8.78 (range 19.03-65.97) kg/m2. The data were collected based on a questionnaire consisting of 19 questions concerning the patient's perception of robotic surgery before the procedure. Patients with a family history of neoplastic diseases indicate precision of movements as the most important reason for choosing robotic surgery (p = 0.0035). Patients after surgery procedures in the past named shorter hospitalization as a major benefit (p = 0.0037). Patients who chose robotic surgery for financial reasons stressed the cosmetic effect as a priority (p = 0.0319). Shorter length of hospital stay, less blood loss, enlarged view, and good visualization were statistically significant reasons for choosing robotic surgery (p < 0.05). Women who consider work, good material status, and well-being as the most important aspects of their lives cited the cosmetic effect as a benefit of robotic surgery (p = 0.0029 vs. p = 0.0074 vs. p = 0.01745, respectively). In the follow-up after operations, no patients regretted choosing robotic surgery. Good visualization, precise movements, less blood loss, and cosmetic effects are the most frequent reasons for choosing robotic surgery. Even patients after other types of surgery in the past decided on robot-assisted radical hysterectomy because of the clear benefits of this approach.

Robotic-assisted Gynecological Surgery in Older Patients - a Comparative Cohort Study of Perioperative Outcomes

Study design Because of current demographic developments, a hypothesis was proposed whereby older female patients aged > 65 years can be safely operated using minimally invasive, robotic-assisted surgery, despite having more preoperative comorbidities. A comparative cohort study was designed to compare the age group ≥ 65 years (older age group, OAG) with the age group < 65 years (younger age group, YAG) after robotic-assisted gynecological surgery (RAS) in two German centers. Patients and methods Consecutive RAS procedures performed between 2016 and 2021 at the Women's University Hospital of Jena and the Robotic Center Eisenach to treat benign or oncological indications were included in the study. The age groups were compared according to their preoperative comorbidities (ASA, Charlson comorbidity index [CCI], cumulative illness rating scale - geriatric version [CIRS-G]) and perioperative parameters such as Clavien-Dindo (CD) classification of surgical complications. Analysis was performed using Welch's t -test, chi ² test, and Fisher's exact test. Results A total of 242 datasets were identified, of which 63 (73 ± 5 years) were OAG and 179 were YAG (48 ± 10 years). Patient characteristics and the percentage of benign or oncological indications did not differ between the two age groups. Comorbidity scores and the percentage of obese patients were higher in the OAG group: CCI (2.7 ± 2.0 vs. 1.5 ± 1.3; p < 0.001), CIRS-G (9.7 ± 3.9 vs. 5.4 ± 2.9; p < 0.001), ASA class II/III (91.8% vs. 74.1%; p = 0.004), obesity (54.1% vs. 38.2%; p = 0.030). There was no difference between age groups, even grouped for benign or oncological indications, with regard to perioperative parameters such as duration of surgery (p = 0.088; p = 0.368), length of hospital stay (p = 0.786; p = 0.814), decrease in Hb levels (p = 0.811; p = 0.058), conversion rate (p = 1.000; p = 1.000) and CD complications (p = 0.433; p = 0.745). Conclusion Although preoperative comorbidity was higher in the group of older female patients, no differences were found between age groups with regard to perioperative outcomes following robotic-assisted gynecological surgery. Patient age is not a contraindication for robotic gynecological surgery.

Systematic review and meta-analysis of all randomized controlled trials comparing gynecologic laparoscopic procedures with and without robotic assistance

OBJECTIVE

Following the publication of several high quality randomized controlled trials regarding the comparison of similar laparoscopic gynecologic procedures being performed with or without robotic assistance, we aimed to perform a systematic review to identify any differences in patient safety and expected incidence of complications in these procedures.

DATA SOURCES

Articles on ClinicalTrials.Gov, Embase, MEDLINE, PubMed, Scopus, and Web of Science databases were retrieved and screened for eligibility up to April 1st 2021.

METHODS OF STUDY SELECTION

In addition to meeting our screening algorithm, we included studies that met all the following: randomized control trials (RCT), enrolling patients for indicated laparoscopic gynecologic procedures, and comparing Robotic Surgery (RS) with Laparoscopic Surgery (LS) in terms of safety or complications.

TABULATION, INTEGRATION, AND RESULTS

Data was pooled as mean difference (MD) or risk ratio (RR) with a 95% confidence interval (CI). Ultimately, six studies were included in this meta-analysis. Pooled data revealed that RS and LS have similar risk for intraoperative complications (RR = 0.87; 95% CI [0.23, 3.36], P = 0.84), postoperative complications (RR = 1.07; 95% CI [0.57, 2.01], P = 0.83), significant intraoperative hemorrhage (RR = 1.40; 95% CI [0.59, 3.34], P = 0.44), postoperative hemorrhage (RR = 0.43; 95% CI [0.15, 1.22], P = 0.11), vaginal cuff dehiscence (RR = 1.13; 95% CI [0.24, 5.41], P = 0.88), postoperative wound infection, urinary tract infection, and urinary bladder or ureteral injury. RS had "surgeon declared" lower estimated blood loss (MD = 85.27; 95% CI [46.45, 124.09], P < 0.00001) and shorter postoperative hospital stay (MD = 1.20; 95% CI [0.38, 2.01], P = 0.004).

CONCLUSION

There was a statistically significant decrease in hospital stay and "surgeon declared" blood loss seen in the RS group. There was no statistically significant increase in risk of developing other postoperative complications between the LS and R groups.

Comparison of perioperative outcomes and technical features using da Vinci Si and Xi robotic platforms for early stages of endometrial cancer

We directly compared perioperative outcomes and technical features between previous da Vinci Si and the newer Xi robotic platform during total hysterectomy plus salpingo-oophorectomy with or without lymphadenectomy for early-stage endometrial cancer. We retrospectively analyzed147 patients with histological confirmation of endometrial carcinoma stage IA: grade 1-2, 3 and stage IB: grade 1-2 who underwent surgery with da Vinci Si or Xi system between January 2016 and December 2018. Perioperative data, technical features and postoperative complications were considered. 91 patients underwent surgery with the Si system and 56 with the Xi system. Docking time using the Xi system was significantly shorter (p < 0.002), while overall operating time was similar. There were no significant differences in the number of harvested lymph nodes, conversion rate, mean hospital stay, complications, and technical aspects between the two groups. Our study detected similar perioperative outcomes and the trend toward shorter docking and operating time for Xi over Si robot.

Evaluation of intra- and post-operative outcomes to compare robot-assisted surgery and conventional laparoscopy for gynecologic oncology

OBJECTIVE

To compare robot-assisted surgery and conventional laparoscopy for gynecologic oncology regarding intra- and post-operative outcomes.

METHODS

A retrospective study was performed on consecutive patients with gynecologic oncology from February 2014 to October 2017 at Gansu Provincial Hospital, China. Multivariable linear and logistic regression models were performed to explore the difference between two surgeries in the surgical outcomes after adjusting for potential confounders.

RESULTS

276 women were included in this study: 153 robot-assisted surgeries and 123 conventional laparoscopies. The multivariable linear regression model showed that robot-assisted surgery was longer operative time [coefficient (coef), 33.76; 95% CI, 12.47, 55.05; P = 0.002) ], higher lymph node yield (coef, 10.41; 95% CI, 7.47, 13.35; P < 0.001), shorter time to early post-operative feeding (coef, -1.09; 95% CI, -1.33, -0.84; P < 0.001) and less post-operative drainage volume (coef, -368.77; 95% CI, -542.46, -195.09; P < 0.001) than conventional laparoscopy. However, no difference was observed between the two surgeries regarding the estimated blood loss (P > 0.05). The multivariable logistic regression model showed that post-operative complications were similar between robot-assisted surgery and conventional laparoscopy (P > 0.05).

CONCLUSION

Robot-assisted surgery was superior to conventional laparoscopy regarding intra- and post-operative outcomes for gynecologic oncology.

Nationwide Introduction of Minimally Invasive Robotic Surgery for Early-Stage Endometrial Cancer and Its Association With Severe Complications

Importance

Minimally invasive laparoscopic surgery (MILS) for endometrial cancer reduces surgical morbidity compared with a total abdominal hysterectomy. However, only a minority of women with early-stage endometrial cancer undergo MILS.

Objective

To evaluate the association between the Danish nationwide introduction of minimally invasive robotic surgery (MIRS) and severe complications in patients with early-stage endometrial cancer.

Design, Setting, and Participants

In this nationwide prospective cohort study of 5654 women with early-stage endometrial cancer who had undergone surgery during the period from January 1, 2005, to June 30, 2015, data from the Danish Gynecological Cancer Database were linked with national registers on socioeconomic status, deaths, hospital diagnoses, and hospital treatments. The women were divided into 2 groups; group 1 underwent surgery before the introduction of MIRS in their region, and group 2 underwent surgery after the introduction of MIRS. Women with an unknown disease stage, an unknown association with MIRS implementation, unknown histologic findings, sarcoma, or synchronous cancer were excluded, as were women who underwent vaginal or an unknown surgical type of hysterectomy. Statistical analysis was conducted from February 2, 2017, to May 4, 2018.

Exposure

Minimally invasive robotic surgery, MILS, or total abdominal hysterectomy.

Main Outcomes and Measures

Severe complications were dichotomized and encompassed death within 30 days after surgery and intraoperative and postoperative complications diagnosed within 90 days after surgery.

Results

A total of 3091 women (mean [SD] age, 67 [10] years) were allocated to group 1, and a total of 2563 women (mean [SD] age, 68 [10] years) were allocated to group 2. In multivariate logistic regression analyses, the odds of severe complications were significantly higher in group 1 than in group 2 (odds ratio [OR], 1.39; 95% CI, 1.11-1.74). The proportion of women undergoing MILS was 14.1% (n = 436) in group 1 and 22.2% in group 2 (n = 569). The proportion of women undergoing MIRS in group 2 was 50.0% (n = 1282). In group 2, multivariate logistic regression analyses demonstrated that a total abdominal hysterectomy was associated with increased odds of severe complications compared with MILS (OR, 2.58; 95% CI, 1.80-3.70) and MIRS (OR, 3.87; 95% CI, 2.52-5.93). No difference was found for MILS compared with MIRS (OR, 1.50; 95% CI, 0.99-2.27).

Conclusions and Relevance

The national introduction of MIRS changed the surgical approach for early-stage endometrial cancer from open surgery to minimally invasive surgery. This change in surgical approach was associated with a significantly reduced risk of severe complications.

A prospective randomized assessment of quality of life between open and robotic hysterectomy in early endometrial cancer

OBJECTIVE

There are limited prospective data on the evaluation of quality of life in patients undergoing robotic hysterectomy for endometrial cancer. Our objective was to determine whether post-operative recovery differs between robotic and abdominal hysterectomy.

METHODS

At a Swedish tertiary referral university hospital, 50 women with low-risk endometrial cancer scheduled for surgery between February 2012 and May 2016 were included in a randomized trial. Surgery was performed according to principles for minimal invasive surgery. Anesthesia and peri-operative care followed a standardized enhanced recovery after surgery program in both groups. The EuroQol Group form EQ-5D and the Short Form-36 were used to evaluate patients' health-related quality of life. The Swedish Postoperative Symptoms Questionnaire assessed symptoms pre-operatively, daily for 7 days from the day of surgery, and then weekly until 6 weeks post-operatively. Data were analyzed by means of non-parametric tests and repeated measures ANOVA. To evaluate the time-dependent occurrence of complications, Kaplan-Meier survival and Cox proportional-hazard models were used.

RESULTS

A total of 50 women were enrolled in the study (25 robotic and 25 abdominal hysterectomy). Median age (68 years vs 67 years), estimated blood loss (50 mL vs 50 mL), length of hospital stay de facto (53 hours vs 51 hours), and time to meet discharge criteria (36 hours vs 36 hours) in the robotic and abdominal groups, respectively, did not differ significantly (p>0.05) Women in the robotic hysterectomy group recovered significantly faster (p=0.01) in the EQ-5D health index, and reached their pre-operative level after approximately 3 weeks, nearly 2 weeks earlier than the abdominal group. Differences regarding improvement in health-related quality of life (Short Form-36) were statistically significant in general health and social functioning only, and were in favor of robotic hysterectomy. Consumption of analgesics, pain intensity, and symptom sum score post-operatively were equal. Occurrence of complications was an independent risk factor and influenced significantly the EQ-5D health index, length of hospital stay, pain intensity, opioid consumption, and symptom sum score adversely.

CONCLUSION

Robotic hysterectomy in the setting of an enhanced recovery after surgery program led to faster recovery in health-related quality of life compared with abdominal hysterectomy.

Robot-assisted laparoscopic colpectomy in female-to-male transgender patients; technique and outcomes of a prospective cohort study

BACKGROUND

Gender-affirming surgeries in female-to-male (FtM) transgender patients include mostly hysterectomy, bilateral salpingo-oophorectomy and mastectomy. Sometimes further surgery is performed, such as phalloplasty. Colpectomy may be performed to overcome gender dysphoria and disturbing vaginal discharge; furthermore, it may be important in reducing the risk of fistulas due to the phalloplasty procedure with urethral elongation. Colpectomy prior to the reconstruction of the neourethra seems to reduce fistula rates on the very first anastomosis. Therefore, at our center, colpectomy has become a standard procedure prior to phalloplasty and metoidioplasty with urethral elongation. Colpectomy is known as a procedure with potentially serious complications, e.g., extensive bloodloss, vesicovaginal fistula or rectovaginal fistula. Colpectomy performed via the vaginal route can be a challenging procedure due to lack of exposure of the surgical field, as many patients are virginal. Therefore, we investigated whether robot-assisted laparoscopic hysterectomy with bilateral salpingo-oophorectomy (TLH-BSO) followed by robot-assisted laparoscopic colpectomy (RaLC) is an alternative for the vaginal approach.

METHODS

Robot TLH/BSO and RaLC as a single-step procedure was performed in 36 FtM patients in a prospective cohort study.

RESULTS

Median length of the procedure was 230 min (197-278), which reduced in the second half of the patients, median blood loss was 75 mL (30-200), and median discharge was 3 days (2-3) postoperatively. One patient with a major complication (postoperative bleeding with readmission and transfusion) was reported.

CONCLUSION

To our knowledge, this is the first report of RaLC. Our results show that RaLC combined with robot TLH-BSO is feasible as a single-step surgical procedure in FtM transgender surgery. Future studies are needed to compare this technique to the two-step surgical approach and on its outcome and complication rates of subsequent phalloplasty.

Robotic-assisted vs traditional laparoscopic surgery for endometrial cancer: a randomized controlled trial

BACKGROUND

Previous studies comparing robotic-assisted laparoscopic surgery to traditional laparoscopic or open surgery in gynecologic oncology have been retrospective. To our knowledge, no prospective randomized trials have thus far been performed on endometrial cancer.

OBJECTIVE

We sought to prospectively compare traditional and robotic-assisted laparoscopic surgery for endometrial cancer.

STUDY DESIGN

This was a randomized controlled trial. From December 2010 through October 2013, 101 endometrial cancer patients were randomized to hysterectomy, bilateral salpingo-oophorectomy, and pelvic lymphadenectomy either by robotic-assisted laparoscopic surgery or by traditional laparoscopy. The primary outcome measure was overall operation time. The secondary outcome measures included total time spent in the operating room, and surgical outcome (number of lymph nodes harvested, complications, and recovery). The study was powered to show at least a 25% difference in the operation time using 2-sided significance level of .05. The differences between the traditional laparoscopy and the robotic surgery groups were tested by Pearson χ² test, Fisher exact test, or Mann-Whitney test.

RESULTS

In all, 99 patients were eligible for analysis. The median operation time in the traditional laparoscopy group (n = 49) was 170 (range 126-259) minutes and in the robotic surgery group (n = 50) was 139 (range 86-197) minutes, respectively (P < .001). The total time spent in the operating room was shorter in the robotic surgery group (228 vs 197 minutes, P < .001). In the traditional laparoscopy group, there were 5 conversions to laparotomy vs none in the robotic surgery group (P = .027). There were no differences as to the number of lymph nodes removed, bleeding, or the length of postoperative hospital stay. Four (8%) vs no (0%) patients (P = .056) had intraoperative complications and 5 (10%) vs 11 (22%) (P = .111) had major postoperative complications in the traditional and robotic surgery groups, respectively.

CONCLUSION

In patients with endometrial cancer, robotic-assisted laparoscopic surgery was faster to perform than traditional laparoscopy. Also total time spent in the operation room was shorter in the robotic surgery group and all conversions to laparotomy occurred in the traditional laparoscopy group. Otherwise, the surgical outcome was similar between the groups. Robotic surgery offers an effective and safe alternative in the surgical treatment of endometrial cancer.

Robotic hysterectomy using the Vessel Sealer for myomatous uteri: technique and clinical outcome

OBJECTIVE

Robotic procedures using the Vessel Sealer are not well reported in the literature, especially given the advantages of sealing devices already studied in standard laparoscopic procedures. This study reports our experience with the EndoWrist(®) One™ Vessel Sealer in robotic hysterectomy for myomatous uteri.

STUDY DESIGN

In this retrospective cohort study of the first 50 consecutive patients with myomatous uteri undergoing a robotic hysterectomy, we report our experience with the EndoWrist(®) One™ Vessel Sealer (Intuitive Surgical Inc., Sunnyvale, CA) during this procedure. The learning curve was evaluated, and the operative times as well as the complications were recorded.

RESULTS

After the first 10 cases, the median console and total (skin-to-skin) operative time dropped significantly from 110 to 60min and from 158 to 105min, respectively (p=0.018 and p=0.008 respectively). The body mass index (≤ or >30kg/m(2)), uterine weight (≤ or >250g), and uterine size had no statistical significant effect on the total operative time. Median blood loss during surgery was 63mL in all cases (range: 0-400mL). The morbidity was low, and approximately 50% of cases could be discharged from the hospital after one to two days.

CONCLUSION

Robotic hysterectomy using the Vessel Sealer has, after a short learning curve of 10 cases, similar operative times than other published reports on robotic hysterectomy or laparoscopic hysterectomy using a sealing device for myomatous or large uteri.