Robotic-assisted Gynecologic Surgery Research Articles

Comparative analysis of operative time, length of stay in ICU and estimated blood loss in robot-assisted and laparoscopic surgery

Introduction: Minimally invasive surgical techniques are increasingly utilized in contemporary surgical practice worldwide. Despite the similarities between them, such as minimal tissue trauma, improved visibility of the operative field, etc., there are also a number of differences. The most common of them are related to the operative time and length of stay in the intensive care unit (ICU), as well as the amount of intraoperative blood loss. Aim: The aim of this study is to compare the length of ICU stay, the need for blood transfusion due to intraoperative bleeding and the mean operative time in accordance with the body mass index among Bulgarian female patients, who underwent laparoscopic and robot-assisted gynecological surgery. Methods: We analyzed 460 women with benign and malignant gynecological diseases who were operated on at the Gynecology Clinic at the University Hospital - Pleven, Bulgaria from 2007 to 2015. Robot-assisted surgery was performed on 223 patients, and laparoscopic surgery - on 247 patients. Results: We found out that ICU stay (in days) was 1.12 in the group of robot-assisted operations, and 1.05 - in the laparoscopic surgery group. The operative time in laparoscopic operations was significantly shorter, as compared to robot-assisted operations. Conclusion: The need for blood transfusion was determined, considering the estimated intraoperative blood loss and the changes of hemoglobin and hematocrit levels in the postoperative period, compared to their preoperative values. Three prognostic groups were formed.

Is Decreased Insufflation Pressure During Major Robotic-Assisted Gynecologic Surgery Associated With Decreased Recovery Time and Patient Reported Pain Score.

Is Decreased Insufflation Pressure During Major Robotic-Assisted Gynecologic Surgery Associated With Decreased Recovery Time and Patient Reported Pain Score.

Effect of Transdermal Scopolamine for the Prevention of Postoperative Nausea and Vomiting Associated With Robotic Gynecologic Surgery: A Randomized, Double-Blinded, Placebo-Controlled Trial

Abstract Objective: To evaluate the efficacy of transdermal scopolamine for treatment of postoperative nausea and vomiting (PONV) after robotic-assisted gynecologic surgery. Design: Prospective, randomized, double-blinded, placebo-controlled clinical trial. Method: Overall, 47 patients underwent robotic-assisted gynecologic surgery at two tertiary care hospitals, and they were randomized to receive transdermal scopolamine or placebo preoperatively. They then completed a series of questionnaires utilizing a visual analogue scale to rate their nausea and vomiting. Main outcomes were severity of nausea and vomiting till 72 hours postoperatively. Secondary outcomes were antiemetic use, time to discharge, effect on patient well-being of PONV, and patient overall well-being. Results: There was a benefit to the number of rescue antiemetics administered in the immediate postoperative period (0.30 vs. 0.70, p=0.026), but no significant reduction in incidence or severity of PONV, no overall decrease in amount of an...

Nouvelle approche de la courbe d’apprentissage en chirurgie oncogynécologique robot-assistée

ObjectivesDefine the phases composing the learning curve of total hysterectomy (TH) and radical hysterectomy with pelvic lymphadenectomy (RHPL) robot-assisted performed by a single surgeon with no prior experience in laparoscopic surgery. MethodsWe retrospectively analyzed 72 procedures (TH, n=34 and RHPL, n=38) conducted between 2002 and 2011. The surgeon console time (CT) was used to determine the learning curve of TH and RHPL using CUSUM analysis. Epidemiological data, perioperative and postoperative complications were compared from the different phases of the learning curve. ResultsCUSUM analysis of surgeon console time (CUSUMCT) identified two learning phases for the TH group (phase 1: initial learning, phase 2: surgical skill increase). For the RHPL group, three learning phases were identified (phase 1: initial learning, phase 2: extending surgical indications, phase 3: control of surgical skills). Perioperative and postoperative complication rates did not differ significantly between the learning phases. Surgeon CT decreased from the 9th case (P=0.01) for the TH group and from the 13th case (P=0.04) for the RHPL group. DiscussionCUSUM analysis of the learning curve in robotic-assisted gynecologic oncology surgery identified two phases of learning curve for simple procedures such as total hysterectomy and three phases for more complex procedures as radical hysterectomy with pelvic lymphadenectomy.

Robot-assisted surgery in visceral and thoracic surgery gynaecology, urology--importantanaesthetic considerations

Robot-assisted surgery, as a development of laparoscopic surgery, has an increasing field of application. Beside urology, this technique has also been implemented in visceral and thoracic surgery and gynaecology. For the surgeon an enhanced view of the surgical field and a better mobility of the instruments are the most important advantages. Thus, it is possible to work more accurate and prevent inadvertent tissue damage. For the anaesthesiologist several characteristics are of importance. Limited access to the patient as a result of a special positioning requires adequate anaesthetic preparation. For many visceral and thoracic surgical interventions the head and airway of the patient is bedded remote from the anaesthesiologist. Therefore, a standardised order and protection of all i. v.-lines, cables and the ventilation-hose of the (double-lumen) tube is essential. After the roboter is connected to the patient, it is nearly impossible to change or extend patient monitoring. Especially in case of emergency, e. g. respiratory complications or heart failure, a close communication with the surgeon and a team approach are indispensable.

Robot-assisted surgery in gynaecology.

This is an updated merged review of two originally separate Cochrane reviews: one on robot-assisted surgery (RAS) for benign gynaecological disease, the other on RAS for gynaecological cancer. RAS is a relatively new innovation in laparoscopic surgery that enables the surgeon to conduct the operation from a computer console, situated away from the surgical table. RAS is already widely used in the United States for hysterectomy and has been shown to be feasible for other gynaecological procedures. However, the clinical effectiveness and safety of RAS compared with conventional laparoscopic surgery (CLS) have not been clearly established and require independent review. To assess the effectiveness and safety of RAS in the treatment of women with benign and malignant gynaecological disease. For this update, we searched the Cochrane Central Register of Controlled Trials (CENTRAL) (2014, Issue 5) and the Cochrane Gynaecological Cancer Review Group Trials Register. We also searched MEDLINE and EMBASE databases, to complement the searches of the original malignant and benign disease reviews (conducted up to July 2010 and November 2011, respectively), from July 2010 to June 2014. Randomised controlled trials (RCTs) of RAS compared with CLS or open surgery in women requiring surgery for gynaecological disease. Two review authors independently assessed the studies for inclusion and risk of bias, and extracted study data and entered them into an Excel spreadsheet. We subgrouped data according to type of procedure and pooled data using random-effects methods in RevMan 5.3. We performed sensitivity analyses by excluding studies at high risk of bias. We included six RCTs involving 517 women. Most were at low to moderate overall risk of bias; one was at high risk of bias. Four studies evaluated RAS for hysterectomy (371 women), and two studies evaluated RAS for sacrocolpopexy (146 women). All studies compared RAS with CLS, except for one study, which compared RAS with CLS or a vaginal surgical approach for hysterectomy. Confidence intervals for the risk of intraoperative and postoperative complications included benefits with either approach when they were analysed together (risk ratio (RR) 0.95, 95% confidence interval (CI) 0.46 to 1.99; participants = 513; studies = 6; I(2) = 74%) and separately (low-quality evidence). Moderate-quality evidence was found for the effects of RAS on intraoperative injury when compared with CLS (RR 1.23, 95% CI 0.44 to 3.46; participants = 415; studies = 5; I(2) = 0%), along with low-quality evidence for bleeding and infection complications.Mean total operating time was consistent across procedures and on average was about 42 minutes longer in the RAS arm compared with the CLS arm (95% CI 17 to 66 minutes; participants = 294; studies = 4; I(2) = 82%; moderate-quality evidence). Mean hospital stay for hysterectomy procedures was on average about seven hours shorter in the RAS arm than in the CLS arm (mean difference (MD) -0.30 days, 95% CI -0.54 to -0.06; participants = 217; studies = 2; I(2) = 0%; low-quality evidence). The estimated effect of conversion with RAS compared with CLS was imprecise (RR 1.28, 95% CI 0.40 to 4.12; participants = 337; studies = 4; I(2) = 0%; moderate-quality evidence). Limited data from two studies suggest that RAS for sacrocolpopexy may be associated with increased postoperative pain compared with CLS; this needs further investigation. We identified five ongoing trials-four of cancer surgery. We are uncertain as to whether RAS or CLS has lower intraoperative and postoperative complication rates because of the imprecision of the effect and inconsistency among studies when they are used for hysterectomy and sacrocolpopexy. Moderate-quality evidence suggests that these procedures take longer with RAS but may be associated with a shorter hospital stay following hysterectomy. We found limited evidence on the effectiveness and safety of RAS compared with CLS or open surgery for surgical procedures performed for gynaecological cancer; therefore its use should be limited to clinical trials. Ongoing trials are likely to have an important impact on evidence related to the use of RAS in gynaecology.

Factors Contributing to Longer Recovery Times after Major Robotic-Assisted Gynecologic Surgery

Factors Contributing to Longer Recovery Times after Major Robotic-Assisted Gynecologic Surgery

Development and implementation results of an interactive computerized surgical checklist for robotic-assisted gynecologic surgery.

To address surgical complications, the World Health Organization (WHO) developed the Safe Surgery Saves Lives Checklist. With the foundation of the WHO's checklist, a robotic-specific checklist (RORCC) was developed using standardized content and face validity methods. The RORCC was implemented in a high volume gynecological (GYN) specialty group using minimally invasive robotic-assisted surgery. Data were abstracted from patients undergoing GYN procedures from four GYN surgeons at an urban, community hospital during November 16, 2010 to May 15, 2011 (pre-RORCC) n = 89 and from the period May 16, 2011 to November 16 2011 (post-RORCC) n = 121. Thirty-day readmissions pre-checklist and post-checklist were 12 and 5, respectively, which is a significant (p = 0.02) reduction. The duration of surgery was not significantly affected (p = 0.40) with pre-RORCC surgery time at 110.1 (35.7) min versus post-RORCC surgery time at 112.9 (37.4) min. This study demonstrated the feasibility of integrating an electronic, interactive, and robotic-specific checklist for gynecologic robotic-assisted surgery which resulted in a significant reduction in readmissions at the 30-day without significantly impacting operating room times.

Influence of Morbid Obesity on Surgical Outcomes in Robotic-Assisted Gynecologic Surgery.

Objective: The aim of this research was to estimate the impact of body mass index (BMI) on surgical outcomes in patients undergoing robotic-assisted gynecologic surgery. Materials and Methods: This study was a retrospective review of prospectively collected cohort data for a consecutive series of patients undergoing gynecologic robotic surgery in a single institution. BMI, expressed as kg/m2, was abstracted from the medical charts of all patients undergoing robotic hysterectomy. Data on estimated blood loss (EBL), hemoglobin (Hb) drop, procedure time, length of hospital stay, uterine weight, pain-medication use, and complications were also extracted. Results: Two hundred and eighty-one patients underwent robotic operations. Types of procedures were total hysterectomy with or without adnexal excision, and total hysterectomies with lymphadenectomies. Eighty-four patients who were classified as morbidly obese (BMI>35) were compared with 197 patients who had a BMI of<35 (nonmorbidly obese). For patients with BMI<35, and BMI>35, the mean BMI was 27.1 and 42.5 kg/m2 (p<0.05), mean age was 49 and 50 (p=0.45), mean total operative time was 222 and 266 minutes (p<0.05), console time 115 and 142 minutes (p<0.05), closing time (from undocking until port-site fascia closure) was 30 and 41 minutes (p<0.05), EBL was 67 and 79 mL (p=0.27), Hb drop was 1.6 and 1.4 (p=0.28), uterine weight was 196.2 and 227 g (p=0.52), pain-medication use 93.7 and 111 mg of morphine (p=0.46), and mean length of stay was 1.42 and 1.43 days (0.9), all respectively. No statistically significant difference was noted between the 2 groups for EBL, Hb drop, LOS, uterine weight, pain-medication use, or complications. The only statistically significant difference was seen in operating times and included docking, console, closing, and procedure times. There were no perioperative mortalities. Morbidity occurred in 24 patients (8%). In the morbidly obese group, there were 6 complications (7%) and, in the nonmorbidly obese group, there were 18 complications (9%). Conclusions: Morbid obesity does not appear to be associated with an increased risk of morbidity in patients undergoing robotically assisted gynecologic surgery. Morbid obesity is associated with increased procedure time, but otherwise appears to have no difference in outcomes. Robotic surgery offered an ideal approach, allowing minimally invasive surgery in these technically challenging patients, with no significant increase in morbidity. J GYNECOL SURG 30:81).

Complications in Robotic-Assisted Gynecologic Surgery According to Case Type: A 6-Year Retrospective Cohort Study Using Clavien-Dindo Classification

Study ObjectiveTo estimate the risk of postoperative complications in robotic-assisted gynecologic surgery according to case type. Study DesignRetrospective cohort study (Canadian Task Force classification II-2). SettingMayo Clinic Arizona. PatientsAll 1155 patients who underwent robotic-assisted gynecologic surgery between March 2004 and December 2009 were included. Patients were primarily white (94.3%), with a mean (SD) age of 51.5 (15.4) years, and were overweight, with body mass index (BMI) of 27.2 (6.8). InterventionsRisk of complications, overall and according to Clavien-Dindo grade, and incidence of specific complications were analyzed. Robotic-assisted gynecologic surgical procedures were categorized postoperatively according to case type as benign simple (e.g., oophorectomy, simple hysterectomy) in 552 (47.8%) patients, benign complex (e.g., excision of invasive endometriosis) in 262 (22.7%), urogynecologic in 121 (10.5%), and oncologic in 220 (19.1%). Measurements and Main ResultsIntraoperative complications occurred in 3.2% of patients. Postoperative complications of any type occurred in 18.4% of patients. Conversion to laparotomy was necessary in 2.7%. Urologic complications were more common in urogynecologic cases (5.8%) as compared with benign simple (0.5%), benign complex (2.7%), and oncologic (3.2%). Bleeding complications were most common in oncologic cases (5%). Clavien-Dindo grade ≥3 complications occurred in 5.2% of patients overall, and were >3-fold likely to occur in benign complex, urogynecologic, and oncologic cases than in benign simple cases. When adjusted for age, BMI, estimated blood loss, operative time, length of stay, and previous pelvic surgery, complications were nearly twice as common for benign complex (odds ratio [OR] 1.7; 95% confidence interval [CI], 1.1–2.7), urogynecologic (OR 1.9; 95% CI, 1.0–3.4), and oncologic (OR 1.9; 95% CI, 1.1–3.1) cases as for benign simple cases, although weakly significant. Case type, BMI, estimated blood loss, and length of stay remained important factors in predicting postoperative complications. ConclusionThe incidence of complications in robotic-assisted gynecologic surgery varies according to case type. Defining the role of patient and surgical variables such as case type in the occurrence of complications may help in identification of cases with increased risk, to improve patient counseling and surgical outcome.

Implementation of robot-assisted gynecologic surgery for patients with low and high BMI in a German gynecological cancer center

To present a single center outcome from an initial series of gynecological robotic cases with a special reference to obese patients. A retrospective evaluation of 116 women, undergoing elective gynecologic robot-assisted surgery from February 2011 to December 2012. Procedures included hysterectomy (HE), radical HE, adnexectomy, myomectomy, pelvic lymphadenectomy and paraaortic lymphadenectomy, sentinel node extraction, and omentectomy. The feasibility and outcome were investigated in relation to normal and high body mass index (BMI < 30 and BMI ≥ 30). The overall complication rate was low (15/116; 12.9 %). The number of perioperative complications was not different between the patients with normal BMI compared to those with high BMI. Five operations were converted to open surgery due to vascular injury (2), intestinal injury (2) and one insufficiently exposed paraaortic field in an endometrial cancer patient. Urinary bladder was injured once. Late complications included vaginal dehisce (2), vaginal hemorrhage (1), cuff hematoma (4), lymphocyst (1) and two urinary tract injuries. The rate of the late complications was not significantly different in the two groups of patients (p = 0.139). A significant difference in patients' positioning time was observed between normal weighted and obese patients (35 and 55 min, p < 0.001). Robotic procedure was feasible and could be implemented for treating the first setting of mixed indications for gynecologic surgery. Robotic surgery may offer particular advantages in obese patients with no conversions and no wound complications.

Gynecological Surgery and the Robot

As the only robotic device with FDA approval for gynecological surgery, the da Vinci? Surgical System dominates robot-assisted surgery in the field. Benefits to the Surgeon include decreased risk of neck and back injury secondary to improved ergonomics. However, patients benefit greatly due to decreased length of stay, decreased blood loss and analgesic requirements. Unfortunately the initial economic impact of purchasing and maintaining a robot is great but must be balanced with the potential savings from reduced length of stay and earlier return to normal activity. This article looks at the indications for robot-assisted surgery in gynecology. Assessing the efficacy of this modality compared to both straight stick (Laparoscopy) and open procedures. We discuss the impact and implications for surgical training imposed by robotic surgery. Furthermore, we assess the safety of robotic surgery from both the surgeons prospective and as a surgical modality.

Safety and Efficacy of Robot-Assisted Gynecologic Surgery for High Risk and Advanced Stage Endometrial Cancer

Safety and Efficacy of Robot-Assisted Gynecologic Surgery for High Risk and Advanced Stage Endometrial Cancer

Vaginal cuff dehiscence after robot-assisted gynecologic surgery

Vaginal cuff dehiscence after robot-assisted gynecologic surgery

Robotic-assisted laparoscopic trachelectomy: a case series and review of surgical technique.

We present a retrospective case series of patients who underwent robotic-assisted laparoscopic trachelectomies from August 1, 2011 to August 30, 2012, with a description of the surgical technique for successful cervical removal. The patients, at the Department of Obstetrics and Gynecology, Division of Urogynecology and Minimally Invasive Surgery at Penn State Milton S. Hershey Medical Center, were identified using ICD-9 coding for robotic-assisted trachelectomy. Of the 180 patients who had robotic-assisted gynecologic surgery during the study period, eight underwent robotic-assisted laparoscopic trachelectomy. The patients' average age was 40.4years, average parity was 1.5, and mean body mass index was 28. The time interval from initial surgery of supracervical hysterectomy to robotic-assisted trachelectomy was 4years. Pre-operative cervical cytology was negative in all patients. The average length of stay was one overnight admission. The primary indication for prior supracervical hysterectomy was dense pelvic adhesions, and the main indications for robotic-assisted trachelectomy were pelvic pain due to endometriosis and cyclic vaginal bleeding. Surgical outcomes included minimal blood loss (<50ml) and mean operative time of 1.15h (74.88min), without any immediate intra-operative or post-operative complications reported. Histopathology reports on all cervical specimens were normal. Adnexectomy is the most common concomitant procedure performed with trachelectomy. Robotic-assisted laparoscopic trachelectomy is a viable option for patients requesting a minimally invasive approach to cervical stump removal.

Anesthetic Considerations for Robot-Assisted Gynecologic and Urology Surgery

Robotic surgery was first conceived by the United States military in the 1980s. It rapidly developed in both complexity and utility and, in the early 21st century, modern robotic surgery for gynecologic and urologic surgery gained approval in the United States. Today, an ever-increasing number and variety of surgical procedures enlist robotic-assistance. Numerous anesthetic considerations for robotic surgery exist. A few of the most important aspects of conducting a safe anesthetic include: investigating the patient’s co-morbid conditions, realizing the risks associated with the robotic equipment, and positioning the patient with care. This manuscript reviews the current literature on robotic-assisted surgery for gynecologic and urologic procedures with emphasis on history, marketplace, type, variety, and expansion of surgery in these fields. The review focuses on practical considerations for the anesthesiologist caring for patients undergoing robotic surgery. Preoperative, intraoperative and postoperative issues are explored in detail. The rapid expansion of robotic surgery worldwide requires thoughtful consideration of the technique’s weaknesses and associated risks. This review provides a roadmap to adequately prepare anesthesiologists for care of gynecologic and urologic patients undergoing robot-assisted surgery.

Using the "Summa Set-up" in robotic assisted gynecologic surgery.

During challenging gynecologic (GYN) procedures, the conventional robotic set-up can limit a surgeon's ability to effectively and efficiently perform these procedures. We present a novel set-up using a parallel-docking approach of the da Vinci (®) Surgical System with only three robotic arms and incorporating two patient side assist ports to overcome the difficulties presented during challenging GYN procedures. The Summa Set-up (SS) uses 4 ports actively, 2 assist ports and 2 robotic ports, compared to the traditional set-up which uses 4 ports: 1 assist port and 3 robotic ports. With the SS format, the patient-side assistant stands at the head of the bed and can simultaneously retract the uterus and aide in surgical dissection along with the console surgeon. While there are many possibilities of da Vinci (®) docking, port placement and assistant placement during robotic-assisted GYN surgery, we believe the SS can be an alternative for many GYN surgeons, especially those in teaching hospitals, for increased mobility and efficiency during complex GYN procedures.

Port-site recurrence in a patient undergoing robot-assisted gynecologic cancer surgery for endometrial cancer — A case report

► First case of port-site metastasis after robotic staging surgery for uterine cancer. ► Changes to robotic surgical technique to reduce risk of port-site recurrence. ► Further areas of investigation worth examining in this aspect of robotic surgery.

Survey of Robotic Surgery Credentialing Requirements for Physicians Completing OB/GYN Residency

Study ObjectiveTo describe credentialing requirements for newly graduated resident physicians for robotic-assisted gynecologic surgery in Alabama. DesignCross-sectional study (Canadian Task Force classification III). SettingHospitals in the state of Alabama in the United States. ParticipantsCredentialing authorities at hospitals in Alabama that currently use robotic surgery in the field of gynecology. InterventionsParticipants completed an online questionnaire about credentialing policies. Measurements and Main ResultsFifteen of 16 hospitals (94%) in Alabama that use robotic technology for gynecologic surgery participated in this survey. All hospitals had a credentialing policy for robotic surgery; however, only 9 of the 15 hospitals (60%) had a separate pathway for physicians with recent residency training. This pathway consisted of an attestation letter from a residency program director in all of the 9 hospitals, a robotic case list in 3 (33%), and proctored cases after residency in 2 (22%). Five hospitals (55%) required a certain number of hysterectomy procedures (median, 5; range, 2–10). ConclusionRobotic surgery credentialing requirements in Alabama vary. Validation of requirements in best practices for robotic surgery by graduating resident physicians is needed.

Trendelenburg Position in Gynecologic Robotic-Assisted Surgery

ObjectiveTo estimate the necessity of routine patient positioning in steep Trendelenburg in robotic-assisted gynecologic surgery performed for benign indications. DesignDescriptive study (Canadian Task Force classification II-2). SettingUniversity-affiliated community hospital. PatientsTwenty women undergoing robotic-assisted gynecologic surgery for benign indications. InterventionRobotic-assisted total hysterectomy, supracervical hysterectomy, myomectomy, and sacrocolpopexy. Measurements and Main ResultsDemographic data and perioperative variables were recorded including age, body mass index, procedure type, console time, perioperative complications, estimated blood loss, hospital length of stay, and degree of Trendelenburg position. The degree of Trendelenburg position was measured at the end of each procedure using an electronic level. The surgeons were blinded to the degree of Trendelenburg used. All procedures were performed successfully without conversion to laparotomy. All patients were discharged to home within 24 hours. No perioperative complications were noted. The mean (SD; 95% CI) Trendelenburg position used in this cohort was 16.4 (4.1; 14.4–18.3) degrees. Patient body mass index was 28.5 (5.3; 26.1–31.1). Median console time was 87.5 (27–112) minutes. ConclusionRobotic-assisted benign gynecologic surgery can be effectively performed without use of the steep Trendelenburg position. The practice of routine adherence to steep Trendelenburg positioning in benign gynecologic robotic surgery should be questioned.