Prospective study comparing video-endoscopic radical inguinal lymph node dissection (VEILND) with open radical ILND (OILND) for penile cancer over an 8-year period

Comparison of antegrade and retrograde laparoscopic bilateral inguinal lymphadenectomy for penile cancer

PURPOSE

To investigate and compare the feasibility, safety, and clinical outcomes of antegrade and retrograde laparoscopic bilateral inguinal lymphadenectomy for penile cancer.

METHODS

We retrospectively analyzed the clinical data of 32 patients with penile cancer admitted between 2018 and 2022. Among them, 17 patients underwent antegrade laparoscopic inguinal lymphadenectomy (ALIL group) and 15 underwent retrograde laparoscopic inguinal lymphadenectomy (RLIL group). The key surgical procedures and techniques are described. Operative time, intraoperative blood loss, hospital stay, drainage duration, postoperative complications, and follow-up data in both groups were statistically analyzed.

RESULTS

Surgery in both groups was successfully completed without the need for intraoperative conversion to open surgery. The operative time was significantly shorter for ALIL than for RLIL (P < 0.001). Significantly less intraoperative blood loss was reported with ALIL than with RLIL (P < 0.001). The ALIL group had a significantly shorter hospital stay than the RLIL group (P = 0.027). The number of removed lymph nodes in the ALIL group differed insignificantly from that in the RLIL group (P = 0.360). Postoperative drainage duration, recurrence, short-term survival, and postoperative complications were similar between both groups.

CONCLUSION

In the patients with penile cancer, ALIL and RLIL yielded similar perioperative outcomes. However, ALIL was associated with shorter operative time, less blood loss, and shorter hospital stays. ALIL did not require repositioning of the laparoscopic instruments, thereby simplifying the procedure and minimizing patient trauma. Additionally, if needed, pelvic lymphadenectomy could be performed simultaneously from the same trocar position used in ALIL.

Skin Flap Necrosis in Inguinal Lymph Node Dissection

Inguinal skin flap necrosis (SFN) is a significant clinical problem associated with inguinal lymph node dissection (ILND). The aetiology of SFN is multifactorial, and its manifestations vary widely. Thermal damage caused by electrocautery during the elevation of the skin flap may contribute to this problem, which has not been studied previously. This prospective, observational study included patients undergoing ILND from January 2020 to July 2022. Based on the technique of raising the inguinal skin flaps, the patients were divided into two groups (cold knife or electrocautery). The remaining part of the procedure was the same. The inguinal wound was examined and photographed to assess the SFN. A total of 42 patients were included (21 in each group). Age, gender, body mass index (BMI), alcohol or tobacco consumption, immune compromised status, and serum albumin were comparable (p > 0.05). The average time required to elevate flaps was 13.14 vs. 11.47 min (p = 0.0231), and gauze soakage was 2.05 vs. 1.52 (p < 0.0001) with a cold knife compared to electrocautery. The incidence of SFN and surgical site infection (SSI) was significantly lower with the use of a cold knife [4.8% vs. 33.3% (p = 0.045) and 0% vs. 19% (p = 0.0378)]. Grade 3 necrosis was observed only with electrocautery use. Compared to conventional electrocautery, the cold knife technique lowers the incidence of SFN and SSI. Further research with a larger sample size and a standardized definition is needed to validate these results.

Comparing the safety and effectiveness of minimally invasive surgery and open inguinal lymph node dissection in penile cancer: A systematic review and meta-analysis

OBJECTIVE

To compare the safety and effectiveness of minimally invasive surgery (MIS) with open inguinal lymph node dissection (O-ILND) in penile cancer.

METHODS

We performed a systematic reviews and cumulative meta-analyses of primary results of interest according to PRISMA criteria, and quality assessment followed AMSTAR. The system searched five databases, including Zhiwang, Embase, PubMed, Cochrane Library and Web of Science. The search period ranged was from database creation until September 2023. The statistical analysis software used Stata16.

RESULTS

A total of 16 studies, including 898 patients. Compared to O-ILND, MIS is superior in length of stay (WMD = -2.96, 95%CI [-4.38, -1.54], P < 0.05), drainage time (WMD = -3.24, 95%CI [-4.70, -1.78], P < 0.05) and estimated blood loss (WMD = -35.70, 95%CI [-46.27, -25.14], P < 0.05), while operation time, recurrence rate and 5-year overall survival rate are the same. The number of lymph nodes dissection between the two groups are not statistically significant. Subgroup analyses found that there are more lymph nodes dissection in robotic-assisted inguinal lymph nodes dissection (WMD = 0.50, 95%CI [0.20, 0.80], P < 0.05). The overall complication rate of MIS was lower (OR = 0.26, 95%CI [0.09, 0.70], P < 0.05).

CONCLUSION

Minimally invasive inguinal lymph nodes dissection appears to be a better option for penile cancer cases. But more large samples and multicenter studies are needed to further confirm.

Minimally Invasive Management of Inguinal Lymph Nodes in Penile Cancer: Recent Progress and Remaining Challenges

The diagnosis of occult inguinal lymph node metastasis in clinically node-negative invasive penile squamous cell carcinoma (PSCC) has remained a challenge, with substantial perioperative complications. The recent refinements in the technique of dynamic sentinel lymph node biopsy (DSLNB) demonstrated high diagnostic accuracy with considerably lower morbidity compared to conventional open modified/superficial inguinal lymph node dissection (ILND). Although DSLNB, if available, has been endorsed as the preferred method for nodal staging in patients with invasive PSCC and no palpable inguinal lymphadenopathy in the recent penile cancer guidelines, its utilization has been quite limited so far. Laparoscopic and robotic-assisted ILND have emerged as alternatives for nodal staging in this patient population and are shown to improve the rate of wound infections and postoperative pain. For management of nodal metastasis in patients with clinically palpable inguinal lymph nodes, minimally invasive ILND has shown promising results as well. Nonetheless, given the rarity of PSCC and the absence of prospective studies and clinical trials, nodal staging and treatment of nodal metastasis in clinical practice will likely continue to vary across the medical centers in the following years. In this review, we first summarize the evolution of DSLNB and minimally invasive ILND and discuss the advantages and drawbacks of each management strategy. We further discuss the remaining challenges and future perspectives in the management of inguinal lymph nodes in patients with PSCC.

Laparoscopic simultaneous anterograde inguinal and pelvic lymphadenectomy for penile cancer: two planses, three holes, and six steps

Objective

To assess the feasibility, safety, and efficiency of simultaneous anterograde video laparoscopic inguinal and pelvic lymphadenectomy for penile cancer.

Materials and methods

We reviewed retrospectively the records of 22 patients (44 lateral) who underwent inguinal lymph nodes dissection for penile cancer. The procedure was standardized as two planes, three holes, and six steps. Two Separate-planes: superior plane of eternal oblique aponeurosis/ / fascia lata; inferior plane of superficial camper fascia. Three holes: two artificial lateral boundary holes, the internal and external boundary holes, and the hole of oval fossa. Six steps: separate the first separate-plane; separate the second layer; separate two artificial lateral boundary holes; free great saphenous vein; separate the third hole and clean up the deep inguinal lymph nodes; pelvic lymphadenectomy.

Results

A total of 22 cases were included and 9 patients underwent simultaneous pelvic lymphadenectomy. The average operation time on both sides was 7.52 ± 3.29 h, which was 0.5-1 h/side after skilled. The average amount of bleeding was 93.18 ± 50.84 ml. A total of 8 patients had postoperative complications, accounting for 36.36%, and no complications great than Clavien-Dindo class III occurred.

Conclusion

This study demonstrated that the video laparoscopic simultaneous anterograde inguinal and pelvic lymphadenectomy is a feasible and safe technique. Indocyanine Green was helpful for lymph node identify.

Inguinal Lymphadenectomy for Penile Cancer: An Interim Report from a Trial Comparing Open Versus Videoendoscopic Surgery Using a Within-patient Design

Background and objective

Nodal metastasis is a major survival and prognostic factor in penile cancer (PeCa). Thus, accurate staging, prognosis, and treatment selection require adequate inguinal lymphadenectomy (ILND). ILND surgery should balance oncologic rigor with morbidity and postoperative complications. Our aim was to compare the feasibility and safety of open ILND (OILND) and videoendoscopic ILND (VEILND) in patients with PeCa.

Methods

We conducted a single-center randomized trial with a within-patient design between October 2019 and April 2023. Patients who were undergoing either staging or radical ILND for PeCa were included and randomized to receive either OILND or VEILND on one side, with the other technique then used on the contralateral side. The trial was approved by the local ethics committee and was registered on ClinicalTrials.gov (NCT05887921). The primary outcome was the safety of VEILND. Secondary outcomes included intraoperative and postoperative morbidity rates and surgical outcomes for the two procedures, as well as oncological outcomes according to survival estimates.

Key findings and limitations

We included 14 patients in the study. Median follow-up was 12 mo (interquartile range [IQR] 12-17). There were no significant differences in operative time and the number of lymph nodes removed between OILND and VEILND. However, the median time to drain removal was significantly shorter in the VEILND group (15 d, IQR 13-17, 95% confidence interval [CI] 12-17) than in the OILND group (27 d, IQR 20-41, 95% CI 24-31; p = 0.025). No intraoperative complications were observed, but postoperative complications occurred in three cases (21.4%, 95% CI 8.4-37.8%) in the VEILND group and eight (57.1%, 95% CI 18.6-54.3%) in the OILND group (p = 0.032).

Conclusions and clinical implications

VEILND represents a safe technique to consider for either staging or curative intent in PeCa and seems to have an advantage over OILND in terms of morbidity. Further high-powered studies are warranted to confirm these preliminary results.

Patient summary

We compared the outcomes of two different surgical techniques to remove lymph nodes in patients with penile cancer. We found that a video-assisted keyhole surgery approach seems to result in a lower rate of complications than after open surgery.

Efficacy of indocyanine green fluorescence-guided inguinal lymph node dissection for penile cancer: a randomised trial

OBJECTIVES

To investigate the safety and efficacy of indocyanine green (ICG) fluorescence-guided inguinal lymph node dissection (ILND) in patients with penile cancer.

PATIENTS AND METHODS

A prospective, single-blind, randomised controlled clinical trial (ChiCTR2100044584) was performed among patients with penile caner who underwent bilateral modified ILND at four centres in China between 1 April 2021 and 30 June 2022. Patients aged 18-80 years and diagnosed with squamous cell carcinomas were included. Each enrolled patient was randomly assigned to either ICG fluorescence-guided ILND by a laparoscopic or robot-assisted approach in one groin, with non-ICG fluorescence-guided ILND in the other groin acting as a control. The primary outcome was the number of retrieved ILNs. Secondary outcomes included complications according to the Clavien-Dindo classification and the ILN non-compliance (inadequate removal of ILNs) rate.

RESULTS

A total of 45 patients were included in the intention-to-treat (ITT) analysis, and the 42 who completed the entire study were included in the per protocol (PP) analysis. There were no ICG-related complications in any of the patients. The results of the ITT and PP analyses indicated that the total number of unilateral ILNs retrieved was higher on the ICG side than on the non-ICG side (mean 13 vs 9 ILNs, difference 4 ILNs [95% CI 2.7-4.4], P = 0.007), and the number of unilateral deep and superficial ILNs was higher on the ICG side. Furthermore, the LN non-compliance rate was lower on the ICG side than on the non-ICG side. Additionally, there was no significant difference in local complications in the groins between the two sides (P > 0.05).

CONCLUSION

An ICG fluorescence-guided ILND was safe for patients with penile cancer. This procedure can improve the number of ILNs retrieved and reduce the LN non-compliance rate without increased complications. ICG fluorescence-guided ILND is beneficial and recommended for selected patients with penile cancer.

Robotic or open superficial inguinal lymph node dissection as staging procedures for clinically node negative high risk penile cancer

OBJECTIVE

To evaluate perioperative and oncologic outcomes of a cohort of clinically node negative high-risk penile cancer patients undergoing robotic assisted inguinal lymph node dissection (RAIL) compared to patients undergoing open superficial inguinal lymph node dissection (OSILND).

PATIENTS AND METHODS

We retrospectively reviewed the clinical characteristics and outcomes of clinically node negative high-risk penile cancer patients undergoing RAIL at MDACC from 2013-2019. We sought to compare this to a contemporary open cohort of clinically node negative patients treated from 1999 to 2019 at MDACC and Moffit Cancer Center (MCC) with an OSILND. Descriptive statistics were used to characterize the study cohorts. Comparison analysis between operative variables was performed using Fisher's exact test and Wilcoxon's rank-sum test. The Kaplan-Meier method was used to estimate survival endpoints.

RESULTS

There were 24 patients in the RAIL cohort, and 35 in the OSILND cohort. Among the surgical variables, operative time (348.5 minutes vs. 239.0 minutes, P < 0.01) and the duration of operative drain (37 vs. 22 days P = 0.017) were both significantly longer in the RAIL cohort. Complication incidences were similar for both cohorts (34.3% for OSILND vs. 33.3% for RAIL), with wound complications making up 33% of all complications for RAIL and 31% of complications for OSILND. No inguinal recurrences were noted in either cohort. The median follow-up was 40 months for RAIL and 33 months for OSILND.

CONCLUSIONS

We observed similar complication rates and surgical variable outcomes in our analysis apart from operative time and operative drain duration. Oncological outcomes were similar between the two cohorts. RAIL was a reliable staging and potentially therapeutic procedure among clinically node negative patients with penile squamous cell carcinoma with comparable outcomes to an OSILND cohort.

Management of Lymph Node-positive Penile Cancer: A Systematic Review

CONTEXT

Lymph node (LN) involvement in penile cancer is associated with poor survival. Early diagnosis and management significantly impact survival, with multimodal treatment approaches often considered in advanced disease.

OBJECTIVE

To assess the clinical effectiveness of treatment options available for the management of inguinal and pelvic lymphadenopathy in men with penile cancer.

EVIDENCE ACQUISITION

EMBASE, MEDLINE, the Cochrane Database of Systematic Reviews, and other databases were searched from 1990 to July 2022. Randomised controlled trials (RCTs), nonrandomised comparative studies (NRCSs), and case series (CSs) were included.

EVIDENCE SYNTHESIS

We identified 107 studies, involving 9582 patients from two RCTs, 28 NRCSs, and 77 CSs. The quality of evidence is considered poor. Surgery is the mainstay of LN disease management, with early inguinal LN dissection (ILND) associated with better outcomes. Videoendoscopic ILND may offer comparable survival outcomes to open ILND with lower wound-related morbidity. Ipsilateral pelvic LN dissection (PLND) in N2-3 cases improves overall survival in comparison to no pelvic surgery. Neoadjuvant chemotherapy in N2-3 disease showed a pathological complete response rate of 13% and an objective response rate of 51%. Adjuvant radiotherapy may benefit pN2-3 but not pN1 disease. Adjuvant chemoradiotherapy may provide a small survival benefit in N3 disease. Adjuvant radiotherapy and chemotherapy improve outcomes after PLND for pelvic LN metastases.

CONCLUSIONS

Early LND improves survival in nodal disease in penile cancer. Multimodal treatments may provide additional benefit in pN2-3 cases; however, data are limited. Therefore, individualised management of patients with nodal disease should be discussed in a multidisciplinary team setting.

PATIENT SUMMARY

Spread of penile cancer to the lymph nodes is best managed with surgery, which improves survival and has curative potential. Supplementary treatment, including the use of chemotherapy and/or radiotherapy, may further improve survival in advanced disease. Patients with penile cancer with lymph node involvement should be treated by a multidisciplinary team.

Robot-assisted Surgery in the Field of Urology: The Most Pioneering Approaches 2015-2023

Robot-assisted surgery has emerged as a transformative technology, revolutionizing surgical approaches and techniques that decades ago could barely be imagined. The field of urology has taken charge in pioneering a new era of minimally invasive surgery with the ascent of robotic systems which offer enhanced visualization, precision, dexterity, and enabling surgeons to perform intricate maneuvers with improved accuracy. This has led to improved surgical outcomes, including reduced blood loss, lower complication rates, and faster patient recovery. The aim of our review is to present an evidence-based critical analysis on the most pioneering robotic urologic approaches described over the last eight years (2015-2023).

Long-term oncological and surgical outcomes after Video Endoscopic Inguinal Lymphadenectomy (VEIL) in patients with penile cancer

OBJECTIVE

To report outcomes from the largest multicenter series of penile cancer patients undergoing video endoscopic inguinal lymphadenectomy (VEIL).

MATERIALS AND METHODS

Retrospective multicenter analysis. Authors of 21 centers from the Penile Cancer Collaborative Coalition-Latin America (PeC-LA) were included. All centers performed the procedure following the same previously described standardized technique. Inclusion criteria included penile cancer patients with no palpable lymph nodes and intermediate/high-risk disease and those with non-fixed palpable lymph nodes less than 4 cm in diameter. Categorical variables are shown as percentages and frequencies whereas continuous variables as mean and range.

RESULTS

From 2006 to 2020, 210 VEIL procedures were performed in 105 patients. Mean age was 58 (45-68) years old. Mean operative time was 90 minutes (60-120). Mean lymph node yield was 10 nodes (6-16). Complication rate was 15.7%, including severe complications in 1.9% of procedures. Lymphatic and skin complications were noted in 8.6 and 4.8% of patients, respectively. Histopathological analysis revealed lymph node involvement in 26.7% of patients with non-palpable nodes. Inguinal recurrence was observed in 2.8% of patients. 10y- overall survival was 74.2% and 10-y cancer specific survival was 84.8%. CSS for pN0, pN1, pN2 and pN3 were 100%, 82.4%, 72.7% and 9.1%, respectively.

CONCLUSION

VEIL seems to offer appropriate long term oncological control with minimal morbidity. In the absence of non-invasive stratification measures such as dynamic sentinel node biopsy, VEIL emerged as the alternative for the management of non-bulky lymph nodes in penile cancer.

Improved outcome in penile cancer with radiologically enhanced stratification protocol for lymph node staging procedures: a study in 316 inguinal basins with a mean follow-up of 5 years

BACKGROUND

Lymph node metastasis is the main determinant of survival in penile cancer patients. Conventionally clinical palpability is used to stratify patients to Inguinal Lymph node dissection (ILND) if clinically node positive (cN +) or Dynamic sentinel node biopsy (DSNB) if clinically node negative (cN0). Studies suggest a false negative rate (FNR) of around 10% (5-13%) for DSNB. To our knowledge there are no studies reporting harder end point of survival and outcomes of all clinically node positive (cN +) patients. We present our outcome data of all patients with penile cancer including false negative rates and survival in both DSNB and ILND groups.

METHODS

One hundred fifty-eight consecutive patients (316 inguinal basins), who had lymph node surgery for penile cancer in a tertiary referral centre from Jan 2008 to 2018, were included in the study. All patients underwent ultrasound (US) ± fine needle aspiration cytology (FNAC) and then MRI/ CT, if needed, to stage their disease. We used combined clinical and radiological criteria (node size, architecture loss, irregular margins) to stratify patients to DSNB vs ILND as opposed to clinical palpability alone.

RESULTS

11.2% i.e., 27/241 inguinal basins had lymph node positive disease by DSNB. 54.9% i.e., 39/71 inguinal basins (IBs) had lymph node-positive disease by ILND. 4 inguinal basins with no tracer uptake in sentinel node scans are being monitored at patient's request and have not had any recurrences to date. With a mean follow-up of 65 months (range 24-150), the false-negative rate (FNR) for DSNB is 0%. Judicious uses of cross-sectional imaging necessitated ILND in 2 inguinal basins with non-palpable nodes and negative US with false positive rate of 6.3% (2/32) for ILND. The same cohort of DSNB patients might have had 11.1% (3/27) FNR if only palpability criteria was used. 43 (28%) patients who did require cross sectional imaging as per our criteria had a low node positive rate of 4.7% (p = 0.03). Mean cancer specific survival of all node-positive patients was 105 months.

CONCLUSION

The performance of DSNB improved with enhanced radiological stratification of patients to either DSNB or ILND. We for the first time report the comprehensive outcome of all lymph node staging procedures in penile cancer.

Inguinal lymphadenectomy in penile cancer patients: a comparison between open and video endoscopic approach in a multicenter setting

OBJECTIVES

To compare differences of operative outcomes, post-operative complications and survival outcomes between open and laparoscopic cases in a multicenter study.

METHODS

This was a retrospective cohort study performed at three European centers from September 2011 to January 2019. The surgeon decision to perform open inguinal lymphadenectomy (OIL) or video endoscopic inguinal lymphadenectomy (VEIL) was done in each hospital after patient counselling. Inclusion criteria regarded a minimum follow-up of 9 months since the inguinal lymphadenectomy.

RESULTS

A total of 55 patients with proven squamous cell penile cancer underwent inguinal lymphadenectomy. 26 of them underwent OIL, while 29 patients underwent VEIL. For the OIL and VEIL groups, the mean operative time was 2.5 vs. 3.4 h (p=0.129), respectively. Hospital stays were lower in the VEIL group with 4 vs. 8 days in OIL patients (p=0.053) while number of days requiring drains to remain in situ was 3 vs. 6 days (p=0.024). The VEIL group reported a lower incidence of major complications compared to the OIL group (2 vs. 17%, p=0.0067) while minor complications were comparable in both groups. In a median follow-up period of 60 months, the overall survival was 65.5 and 84.6% in OIL and VEIL groups, respectively (p=0.105).

CONCLUSIONS

VEIL is comparable to OIL regarding safety, overall survival and post-operative outcomes.

Assessment and Reporting of Perioperative Adverse Events and Complications in Patients Undergoing Inguinal Lymphadenectomy for Melanoma, Vulvar Cancer, and Penile Cancer: A Systematic Review and Meta-analysis

BACKGROUND

Inguinal lymph node dissection (ILND) plays a crucial role in the oncological management of patients with melanoma, penile, and vulvar cancer. This study aims to systematically evaluate perioperative adverse events (AEs) in patients undergoing ILND and its reporting.

METHODS

A systematic review was conducted according to PRISMA. PubMed, MEDLINE, Scopus, and Embase were queried to identify studies discussing perioperative AEs in patients with melanoma, penile, and vulvar cancer following ILND.

RESULTS

Our search generated 3.469 publications, with 296 studies meeting the inclusion criteria. Details of 14.421 patients were analyzed. Of these studies, 58 (19.5%) described intraoperative AEs (iAEs) as an outcome of interest. Overall, 68 (2.9%) patients reported at least one iAE. Postoperative AEs were reported in 278 studies, combining data on 10.898 patients. Overall, 5.748 (52.7%) patients documented ≥1 postoperative AEs. The most reported ILND-related AEs were lymphatic AEs, with a total of 4.055 (38.8%) events. The pooled meta-analysis confirmed that high BMI (RR 1.09; p = 0.006), ≥1 comorbidities (RR 1.79; p = 0.01), and diabetes (RR 1.81; p =  < 0.00001) are independent predictors for any AEs after ILND. When assessing the quality of the AEs reporting, we found 25% of studies reported at least 50% of the required criteria.

CONCLUSION

ILND performed in melanoma, penile, and vulvar cancer patients is a morbid procedure. The quality of the AEs reporting is suboptimal. A more standardized AEs reporting system is needed to produce comparable data across studies for furthering the development of strategies to decrease AEs.

Comparison of antegrade robotic assisted VS laparoscopic inguinal lymphadenectomy for penile cancer

BACKGROUND

Minimally invasive modifications of inguinal lymphadenectomy (IL), including laparoscopic IL (LIL) and robotic-assisted IL (RAIL), have been utilized for penile cancer. Comparative study is necessary to guide the decision about which minimally invasive technique to select for IL. Therefore we compared RAIL with LIL performed via an antegrade approach in terms of perioperative outcomes.

METHODS

We conducted a retrospective study of 43 patients who underwent RAIL (n = 20) or LIL (n = 23) for penile cancer from 2016 to 2020. The key surgical procedures and techniques are described. Complications were graded by the Clavien-Dindo classification, and operative time, estimated blood loss (EBL), lymph nodal yield, nodal positivity, postoperative drain duration, and disease recurrence during follow-up were assessed. Categorical variables were compared using chi-squared whereas continuous variables were compared by t-tests.

RESULTS

The operative time for RAIL was significantly shorter than that of LIL (median 83 vs 95 min). Significantly less blood loss was reported with RAIL than with LIL (median 10 vs 35 ml). Lymph node yield, pathological positive nodes, the hospital stay, postoperative drain duration, postoperative complications and recurrence were similar for RAIL and LIL.

CONCLUSIONS

For patients with penile cancer, perioperative outcomes of RAIL and LIL were similar, but there was less blood loss, a shorter operative time for robotic cases.

Starting a minimally invasive inguinal lymphadenectomy program: Initial learning experience and outcomes

BACKGROUND

There is promising data on minimally invasive inguinal lymphadenectomy indicating decreased wound complications compared with the standard open approach. We examined our institutional experience with starting a minimally invasive inguinal lymphadenectomy program.

METHODS

This is a retrospective case series of consecutive patients undergoing videoscopic minimally invasive inguinal lymphadenectomy from August 2017 to March 2022 by a single surgeon. Patients meeting criteria for inguinal lymphadenectomy were considered for minimally invasive inguinal lymphadenectomy unless there was skin involvement by tumor or bulky disease. Data collected included patient characteristics, primary cancer, surgery, and postoperative complications.

RESULTS

There were 26 patients included. The mean age was 60.6 ± 16.2 years. Most patients were female (n = 17, 65.4%), and the primary diagnosis was melanoma (n = 21, 19.2%). In 6 cases (23.1%), minimally invasive inguinal lymphadenectomy was combined with deep pelvic node dissection, but most patients did not have a concurrent procedure (n = 15, 57.7%). The median operative time was 119.0 minutes (range, 89.0-160.0), or 130.5 minutes (range, 89.0-345.0) when including concurrent procedures. The mean number of nodes retrieved was 9.8 ± 3.7, with a positive node identified in 19 patients (73.1%) during minimally invasive inguinal lymphadenectomy. There were 12 (46.2%) patients experiencing at least one postoperative complication within 30 days of surgery, the most common being infection (n = 4, 15.4%). One patient required reoperation for infected hematoma washout. Postoperative intervention for seroma was undertaken in 3 patients (11.5%).

CONCLUSION

Minimally invasive inguinal lymphadenectomy is a safe approach to inguinal lymph node dissection, in terms of node retrieval and postoperative complications, and can feasibly be adopted into practice with minimal learning curve.

Morbidity and risk factors for complications of inguinal lymph node dissection in penile cancer

PURPOSE

To assess the morbidity of inguinal lymph node dissection (ILND) in penile cancer, then to compare this morbidity with that of ILND performed in the context of skin cancer treatment.

METHODS

We retrospectively included all patients having undergone ILND between 1 January 2004 and 31 December 2019 in our centre's urology department in the context of treatment of penile cancer or skin cancer. Postoperative complications were reported in accordance with the Clavien-Dindo classification system.

RESULTS

Two hundred forty-two ILNDs were performed in 122 patients with penile cancer and 56 ILNDs were performed in 56 patients with skin cancer. The most common early complication was postoperative fluid collection (lymphocele or haematoma), which complicated 44% of ILNDs overall and 60% of radical lymphadenectomies. The most common late complication was leg lymphoedema, found in up to 36% of radical lymphadenectomies. Major complications (grade ≥ III) were very rare (4% of radical lymphadenectomies). Radical lymphadenectomies resulted in significantly more cases of postoperative fluid collection, skin necrosis and dehiscence, as well as leg lymphoedema, than modified lymphadenectomy techniques. Two factors significantly increasing postoperative morbidity were demonstrated: ASA score = 3 (OR = 3.09) and operating time (OR = 1.01).

CONCLUSION

ILNDs are morbid surgical procedures for which the indications must be well defined. However, the complications are almost exclusively minor, for a major oncological benefit.

Inguinal lymph node dissection in the era of minimally invasive surgical technology

BACKGROUND

Inguinal lymph node dissection (ILND) is an essential step in both treatment and staging of several malignancies including penile and vulvar cancers. Various open, video endoscopic, and robotic-assisted techniques have been utilized so far. In this review, we aim to describe available minimally invasive surgical approaches for ILND, and review their outcomes and complications.

METHODS

The PubMed, Wiley Online Library, and Science Direct databases were reviewed in February 2020 to find relevant studies published in English within 2000-2020.

FINDINGS

There are different minimally invasive platforms available to accomplish dissection of inguinal nodes without jeopardizing oncological results while minimizing postoperative complications. Video Endoscopic Inguinal Lymphadenectomy and Robotic Video Endoscopic Inguinal Lymphadenectomy are safe and achieve the same nodal yield, a surrogate metric for oncological adequacy. When compared to open technique, Video Endoscopic Inguinal Lymphadenectomy and Robotic Video Endoscopic Inguinal Lymphadenectomy may offer faster postoperative recovery and fewer postoperative complications including wound dehiscence, necrosis, and infection. The relatively high rate and severity of postoperative complications hinders utilization of recommended ILND for oncologic indications. Minimally invasive approaches, using laparoscopic or robotic-assisted platforms, show some promise in reducing the morbidity of this procedure while achieving adequate short and intermediate term oncological outcomes.

Modified videoendoscopic inguinal lymphadenectomy through suprafascial approach: Technical description and preliminary surgical outcomes

INTRODUCTION

The videoendoscopic approach to inguinal lymph node dissection (VEIL) has been suggested as an excellent alternative carrying lower morbidity but equivalent oncological control. One of its most difficult steps is the development of an appropriate plane of dissection. A suprafascial approach would allow for better exposure. The objective of this study is to determine the feasibility, in terms of safety and oncological control, of a technical modification to the classical VEIL technique using a suprafascial plane of dissection in an initial series of patients.

PATIENTS AND METHODS

A single institution retrospective review of patients undergoing VEIL technique using our modified suprafascial approach was conducted. A step-by-step surgical description is provided. Data collected included demographics; comorbid conditions; disease characteristics; intraoperative factors; and postoperative factors.

RESULTS

A total of 7 patients (12 procedures) were included. Average age was 64.42 years old, and 71.42% of the patients were male. The procedure was performed bilaterally in 71.4% of the cases. Median estimated blood loss was 10 mL (range 10-25). Mean operative time was 185 min (range 120-170). Median number of nodes removed was 10.25 nodes (range 7-11). Only one of the patients (8.3%) experienced a Clavien-Dindo grade IIIa complication requiring delayed percutaneous drainage replacement. Median time until drainage removal was 13 days (range 10-16). Median length of stay was 48 hours but ranged from 24-96 hours within the series.

CONCLUSIONS

The modified VEIL technique using a suprafascial plane of the dissection, allows a bilateral ILND in highly competitive operative times and with limited morbidity, without compromising its oncological efficacy.

Clinical Application of Noninflating Video-Endoscopic Inguinal Lymph Node Dissection

Objective

To assess the safety and efficacy of the application of self-made non-inflating suspension technique in video endoscopic inguinal lymph node dissection (ILND).

Methods

We collected 8 patients with penile carcinoma who underwent noninflating video-endoscopic ILND in the Department of Urology, the First Affiliated Hospital of Anhui Medical University, from May 2019 to March 2021. Then, surgical duration, blood loss, drainage tube indwelling time, hospital stay, number of dissected lymph nodes, and complications in the patients were analyzed.

Results

All patients (n = 8) finished the surgery successfully, with an average surgical duration of 125 (105-145) minutes, blood loss of 41 (25-50) mL, indwelling time of drainage tube of 7 (5-12) days, and a hospital stay of 14.8 (9-21) days. Additionally, 8.8 (3-14) left side and 7.3 (2-17) right side lymph nodes were dissected on average. Complications occurred in 3 patients during a perioperative period. The patients were followed up for 6-24 months, and none suffered recurrence or metastasis.

Conclusion

The efficacy of noninflating video-endoscopic ILND is good. Patients who have undergone the surgery not only have few postoperative complications but also have a good prognosis, suggesting the safety and availability of the clinical application.

The Acute Complications After Surgery for Penile Carcinoma and Strategies for Their Management: A Systematic Review of the Literature

OBJECTIVES

To investigate the contemporary rates of 30-day complications after surgery for penile cancer and to discuss the currently used preventative and therapeutic practices aimed at mitigation of these postoperative adverse events.

DATA SOURCES

A systematic review in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines was performed, and studies reporting on the contemporary rates, nature, or management of acute complications following primary penile surgery or inguinal lymph node dissection for penile cancer were abstracted. Medline (PubMed) and EMBASE libraries were used to retrieve the articles published between January 1984 and December 2021 (n = 170 articles). Ultimately, 38 articles were included. The primary outcome of interest was 30-day (acute) postoperative complications, stratified by those associated with treatment of the primary penile lesion and those with inguinal lymph node dissection. Risk of bias assessment was undertaken. Special attention was paid to studies reporting management strategies for these complications.

CONCLUSION

This comprehensive review revealed that the quality of existing studies reporting on complications is poor and the risk of bias is high. Within these studies, the rates of acute complications following primary penile surgery and inguinal lymph node dissection ranged between 0% and 29.4% and 6% and 90%, respectively. More than 50% of these complications were wound related. Over the past two decades, several studies have reported on improved surgical techniques and protocolized postsurgical care pathways. Although the newer techniques have been associated with improved outcomes, the absolute rates of complications have remained high even in the most contemporary series. Therefore, there is an urgent need for health care providers and stakeholders to reach consensus regarding preoperative workup and medical optimization goals, stage appropriate therapies, and postoperative care pathways, as has been done for other malignancies associated with high morbidity.

IMPLICATIONS FOR NURSING PRACTICE

Penile cancer is a disease of the elderly, and surgical management of the primary lesion or the groins is associated with a high rate of complications. Most complications are wound related. Meticulous surgical technique and careful postoperative monitoring with early intervention are keys to mitigating surgery-related morbidity. However, equally important is dissemination and adoption of these principles by all health care workers universally.

Lymphatic Function of the Lower Limb after Groin Dissection for Vulvar Cancer and Reconstruction with Lymphatic SCIP Flap

Inguinofemoral lymphadenectomy, frequently performed for vulvar cancer, is burdened with substantial immediate and long-term morbidity. One of the most disabling treatment-related sequelae is lower limb lymphedema (LLL). The present study aims to describe the wound complications and the severity of LLL in patients who have undergone groin dissection for vulvar cancer and immediate inguinal reconstruction with the Lymphatic Superficial Circumflex Iliac Perforator flap (L-SCIP). We retrospectively reviewed the data of patients who underwent bilateral groin dissection and unilateral inguinal reconstruction with the L-SCIP. The presence and severity of postoperative LLL during the follow-up period were assessed by lymphoscintigraphy and limbs' volume measurement. In addition, immediate complications at the level of the inguinal area were registered. The changes between preoperative and postoperative limb volumes were analyzed by Student's t test. p values < 0.05 were considered significant. Thirty-one patients were included. The mean variation of volume was 479 ± 330 cc3 in the side where groin reconstruction had been performed, and 683 ± 425 cc3 in the contralateral side, showing smaller variation in the treated side (p = 0.022). Lymphoscintigraphy confirmed the clinical findings. Based on our results, inguinal reconstruction with L-SCIP performed at the same time of groin dissection in patients treated for vulvar cancer can provide a significant protective effect on LLL.

Comparison of different surgical methods and strategies for inguinal lymph node dissection in patients with penile cancer

To compare the clinical feasibility and oncological outcome of different surgical techniques for inguinal lymphadenectomy (ILND) in patients suffering from penile cancer. This study included data from 109 cN_0-2 patients diagnosed with penile cancer who received ILND. 80 laparoscopic ILND were performed on 40 patients, while 138 open surgeries were performed on 69 patients. Perioperative complications and prognosis were compared between different surgical techniques. Compared with the open surgery group, the laparoscopy group had a shorter hospital stay (8.88 ± 7.86 days vs. 13.94 ± 10.09 days, P = 0.004), and a lower wound healing delay rate (8.75% vs. 22.46%, P = 0.017), but also had longer drainage time (10.91 ± 9.66 vs. 8.70 ± 4.62, P = 0.002). There were no significant differences in terms of other intraoperative parameters, complications, and survival between open and laparoscopic group. Compared with saphenous vein ligated subgroup, preserved subgroup showed no significant reducing of complication rate. There was no significant difference among complication between different open surgery subgroup. Immediate ILND showed no prognostic advantage over delayed ILND regardless of clinical lymph node status. Compared with open surgery, the minimally invasive ILND technique has similar oncological efficiency and a lower complication rate. Saphenous vein preservation has limited value in reducing complications. Delayed lymphadenectomy might be a more reasonable option for ILND.

Robotic-Assisted Video-Endoscopic Inguinal Lymphadenectomy (RAVEIL) and Video-Endoscopic Inguinal Lymphadenectomy (VEIL) versus Open Inguinal Lymph-Node Dissection (OILND) in carcinoma of penis: Comparison of perioperative outcomes, complications and oncological outcomes. A systematic review and meta-analysis

OBJECTIVE

To perform a systematic review and meta-analysis evaluating the peri-operative outcomes, complications, and oncological outcomes of Robotic-Assisted Video-Endoscopic Inguinal Lymphadenectomy (RAVEIL)/Video-Endoscopic Inguinal Lymphadenectomy (VEIL) with Open Inguinal Lymph-Node Dissection (OILND) for management of inguinal lymph-nodes in carcinoma of the penis.

METHODS

A comprehensive literature search was performed in January 2021 using the PubMed, Embase, and Cochrane databases. Data from human studies comparing RAVEIL/VEIL vs. OILND in carcinoma of penis published in English was extracted and analyzed by two independent authors.

RESULTS

Two Randomised Controlled Trials and 6 cohort studies were included in the meta-analysis. RAVEIL/VEIL group exhibited increased operative time (Mean Difference [MD] = 15.28 [14.19; 16.38], P < 0.001), shorter hospital stay (MD = -1.06 [-1.14; -0.98], P < 0.001), and decreased duration of drainage (MD = -2.82 [-3.21; -2.43], P < 0.001), wound infection (Odds Ratio [OR] = 0.15 [0.08; 0.27], P < 0.001), skin necrosis (OR = 0.12 [0.05; 0.28], P < 0.001), lymphedema (OR = 0.41 [0.24; 0.72], P = 0.002), and major complications (OR = 0.11 [0.05; 0.24], P < 0.001) as compared to OILND group. Recurrence rate and number of deaths were comparable in both the groups. RAVEIL/VEIL groups showed slightly larger lymph-node yield (MD = 0.44 [0.18; 0.70], P < 0.001) as compared to OILND group.

CONCLUSION

RAVEIL/VEIL has lesser skin complications, lymphedema, and better lymph-node yield as compared to OILND. It is comparable in terms of lymphocele and recurrence. It has lesser hospital stay and duration of drainage but owing to heterogeneity, the results should be interpreted with caution. Further studies are required to determine long-term oncological outcomes like overall survival and disease-specific survival.

Saphenous-sparing Ascending Video Endoscopic Inguinal Lymph Node Dissection Using a Leg Approach: Surgical Technique and Perioperative and Pathological Outcomes

Background

Open inguinal lymph node dissection (oILND) has high morbidity. Ascending saphenous-sparing video endoscopic ILND (VEILND-AS+) represents a minimally invasive alternative with potential benefits.

Objective

To describe our VEILND-AS+ technique and compare outcomes to oILND.

Design, setting, and participants

This was a retrospective cohort study of penile cancer patients.

Surgical procedure

VEILND-AS+ was performed according to the technique described in the supplementary video.

Measurements

We compared perioperative and pathological outcomes between the two procedures.

Results and limitations

In the study cohort of 206 men we performed 40 VEILND-AS+ and 251 oILND procedures. In comparison to oILND, VEILND-AS+ had a longer operation time (185 vs 120 min; p < 0.01) but a shorter hospital stay (2 vs 4 d; p < 0.01). A median of eight resected lymph nodes with a median of one affected node per groin was observed in both groups. Extranodal extension was found in 30% of cases after VEILND-AS+ and 35% after oILND. In both groups the median drainage time was 13 d. Wound infections were observed in 38% of cases after VEILND-AS+ and 27% after oILND (p = 0.19). Skin necrosis or wound breakdown occurred in 0% and 6% of cases after VEILND-AS+ and oILND (p < 0.01), while lymphoceles were drained in 18% and 7% of cases, respectively(p = 0.03). Following VEILND-AS+ and oILND, 20% and 14% of patients, respectively, were referred to a lymph oedema clinic (p < 0.01).

Conclusions

VEILND-AS+ is a safe procedure and offers shorter hospital stays and possibly a lower risk of skin necrosis and wound breakdown in comparison to oILND. Further improvements in the VEILND-AS+ technique are required to reduce complications associated with dead space and injury to lymphatic vessels.

Patient summary

For patients undergoing surgery on lymph nodes in the groin, a minimally invasive approach instead of open surgery led to discharge 2 days earlier and may have lower rates of severe wound complications.

VEILND (Video Endoscopic Inguinal Lymph Node Dissection) with Florescence Indocyanine Green (ICG): A Novel Technique to Identify the Sentinel Lymph Node in Men with ≥pT1G2 and cN0 Penile Cancer

Introduction

In men with ≥pT1G2 cN0, penile cancer lymph node sampling is recommended with either (1) scintigraphically labelled Dynamic sentinel lymph node biopsy (DSLNB) or (2) modified inguinal lymph node dissection (MILND). Although DSLNB is a minimally invasive technique, the false negative rate can be about 10%, and a further operative procedure is required if positive. Open MILND is a diagnostic and therapeutic option but has a much higher morbidity. A potential compromise is the technique of LND-VEILND (video endoscopic inguinal LND) that can be combined with ICG florescence marking of sentinel lymph node (SLN). We present a pilot study of ICG-VEILND. The aim was to validate the applicability of a combination ICG marking of SLN in VEILND (to increase probability to excise SLN) and determine the optimal timing and dosage of ICG.

Materials and Methods

15 patients with VEILND (24 groins) underwent ICG application with fluorescence near-infrared (NIR 803⟶830 nm) detection. ICG is applied subcutaneously adjacent to the penile cancer or residual stump of penis or suprapubic region (in a history of total penectomy: 5 cases). The dose of 1.25 mg (ICG) was applied in one case with invisible SLN, the dose of 2.5 mg in 1 mL in 8 cases, and 5 mg in the remaining 6 patients (10 groins).

Results

Failure of marking SLN with ICG occurred in 25.0% of cases (6/24): due to application of 1.25 mg ICG, extensive metastasis to SLN, in 4 cases, the cause was unknown (16.7%, 4/24). In the short follow-up period, no local recurrence was seen in the pN0 ICG group.

Conclusion

Fluorescence infrared image with ICG dye increases the probability of removal of the SLN during VEILND. The dose of ICG is 2.5 (5) mg diluted in 1 ml and can be applied preoperatively even in the suprapubic region in men with a history of total penectomy, with an unexplainable failure of ICG marking in 16.7%.

Laparoscopic and robotic video endoscopic inguinal lymphadenectomy by the lateral approach

INTRODUCTION

Video endoscopic inguinal lymphadenectomy (VEIL) improves on open inguinal node dissection because it offers decreased morbidity. In conventional VEIL, port placement is along the long axis of the femur, above the knee joint. In the laparoscopic approach, this placement is fraught with problems because the camera hits the knee, the surgeon must reach over the camera, and sword fighting occurs between the instruments. In the robotic approach, external collisions are likewise not uncommon because of a lack of optimal spacing between the robot's arms. Here, we describe our lateral approach technique that can be used for both laparoscopic and robotic platforms and can help solve the problems presented by conventional VEIL.

METHODS

A retrospective review was performed to examine the records of all patients who had undergone VEIL at our institution for management of squamous cell carcinoma of the penis. Patients who had undergone lateral VEIL were identified. The clinical factors, surgery details, time to discharge and drain removal, postoperative complications, and nodal pathology were recorded.

RESULTS

A total of 30 VEILs-26 laparoscopic and 4 robotic-were performed by the lateral approach. On clinical examination, none of the patients had clinically palpable nodes. The mean operative time on one side was 100 minutes (range, 80-140 minutes). The blood loss was minimal in all cases, and there were no conversions to open procedures. The mean time to drain removal was 7 days (range, 5-12 days). Two patients developed bilateral lymphoceles.

CONCLUSIONS

Lateral VEIL is feasible and can be used as an alternative to conventional VEIL.

Technical management of inguinal lymph-nodes in penile cancer: open versus minimal invasive

Inguinal lymphadenectomy (ILND) remains the standard of care for patients with invasive squamous cell carcinoma of the penis, dictating patient prognosis, adjuvant therapies, and surveillance strategies. Importantly the performance of an ILND has been shown to improve cancer-specific outcomes, providing a modifiable factor for patients with an aggressive malignancy. Surprisingly, the procedure remains underutilized, mainly due to the high surgical morbidity associated with the procedure. The open lymphadenectomy technique has undergone several modifications over the last 30 years to minimize its associated surgical morbidity, but wound-related complications remain significant. Minimally invasive surgery (MIS) techniques have been recently introduced to help mitigate wound-related complications associated with open lymphadenectomy, with promising results. In this review, we highlight the importance of ILND, present a detail review of the surgical and oncological outcomes associated with open, laparoscopic and robotic ILND for patients with penile cancer.

Penile cancer

Penile squamous cell carcinoma (PSCC) is a rare cancer with orphan disease designation and a prevalence of 0.1-1 per 100,000 men in high-income countries, but it constitutes up to 10% of malignancies in men in some African, Asian and South American regions. Risk factors for PSCC include the absence of childhood circumcision, phimosis, chronic inflammation, poor penile hygiene, smoking, immunosuppression and infection with human papillomavirus (HPV). Several different subtypes of HPV-related and non-HPV-related penile cancers have been described, which also have different prognostic profiles. Localized disease can be effectively managed by topical therapy, surgery or radiotherapy. As PSCC is characterized by early lymphatic spread and imaging is inadequate for the detection of micrometastatic disease, correct and upfront surgical staging of the inguinal lymph nodes is crucial in disease management. Advanced stages of disease require multimodal management. Optimal sequencing of treatments and patient selection are still being investigated. Cisplatin-based chemotherapy regimens are the mainstay of systemic therapy for advanced PSCC, but they have poor and non-durable responses and high rates of toxic effects, indicating a need for the development of more effective and less toxic therapeutic options. Localized and advanced penile cancers and their treatment have profound physical and psychosexual effects on the quality of life of patients and survivors by altering sexual and urinary function and causing lymphoedema.

Comparative study of perioperative and survival outcomes after video endoscopic inguinal lymphadenectomy (VEIL) and open inguinal lymph node dissection (O-ILND) in the management of inguinal lymph nodes in carcinoma of the penis

Open inguinal lymph node dissection (O-ILND) is the gold standard in the management of lymph nodes in carcinoma penis; however, video endoscopic inguinal lymphadenectomy (VEIL) is performed in some centers. Our primary objective is to compare perioperative and survival outcomes in patients undergoing VEIL with O-ILND, as very few studies have reported long-term survival outcomes till date. We analyzed patients who underwent O-ILND and VEIL (laparoscopic or robot-assisted) from January 2009 to January 2020 in our institute for carcinoma of the penis. Patient details, perioperative complications, and survival outcomes were analyzed. Perioperative outcomes were analyzed by logistic regression and survival outcomes by log-rank and Cox regression methods. We analyzed 79 patients (32 O-ILND, 47 VEIL) with a median follow-up of 51 (IQR 25.5-75.5) and 42 months (IQR 21-62). Wound complications were common in O-ILND group (65.6%) compared to VEIL group (27.7%) (p = 0.001), predominantly skin flap necrosis in 14 groins (23.73%) after O-ILND and none after VEIL. Median overall survival was 80 and 88 months (p = 0.840) with five-year survival of 65% and 66.8% (p = 0.636) and five-year DSS of 76.6% and 73.9% (p = 0.96) in O-ILND and VEIL, respectively. Multivariate analysis showed that grade and pathological node status were significant (HR-2.650, p = 0.040; HR-3.218, p = 0.024) factors for survival. The retrospective nature of the study design is the limitation. Management of inguinal lymph nodes in carcinoma penis by VEIL is safe, associated with lesser wound-related complications, and equivalent survival outcomes compared to O-ILND. It should be considered as an alternative option for inguinal lymph node dissection.

Minimally invasive inguinal lymph node dissection: initial experience and reproducibility in a limited resource setting-with technique video

BACKGROUND

Conventional inguinal lymph node dissection comes with a high wound complication rate which increases hospital stay and may delay adjuvant treatment. Minimally invasive lymph node dissection (MILND) is a novel endoscopic technique which aims to minimize complications of lymphadenectomy. Herein we present our technique and experience with MILND to examine safety, feasibility and reproducibility in a setting of limited resources.

METHODS

All patients undergoing MILND in the National Cancer Institute, Cairo were prospectively included following informed consent, IRB and ethical committee approval. Demographics, clinical, pathological data and postoperative complications according to Clavien-Dindo classification were recorded. Footage collected was used to create a step-by-step video demonstrating the technique.

RESULTS

Twenty-seven procedures were included in the study. The most common indications were vulval cancer (44%) and skin melanoma (19%). There were 5 (18%) conversions to open procedure, all of them in the first 10 cases of the learning curve. The median (range) operative time was 120 (45-240) min and there was a trend towards shorter operative time after the first 5 cases. Wound dehiscence occurred in 4 cases (15%). Three of them (11%) required reoperation (grade III). Grade I/II complications in the form of seroma and wound infection occurred in 34%. The median (range) postoperative hospital stay was 2 (1-14). The median (range) number of retrieved lymph nodes was 12 (3-19). No grade III/IV lymphedema was recorded at 90 days after surgery.

CONCLUSION

MILND is a safe, feasible technique associated with relatively low postoperative wound complications even when performed in a centre with relatively limited resources.

Current management and future perspectives of penile cancer: An updated review

Penile cancer (PeCa) is a rare disease worldwide, accounting for less than one percent of all malignancies in men. It usually presents as a painless ulcer or lump on the head of the penis. Squamous cell carcinoma represents the most common histological subtype of PeCa, with pathogenesis intimately linked to chronic Human Papilloma Virus (HPV) infection. Surgery is the cornerstone for the treatment of primary PeCa with potential mutilating outcome depending on the nodal extension of the disease. However, in case of extensive lymph node involvement, multidisciplinary treatment including perioperative chemotherapy and inclusion in clinical trial should be considered. To date, advanced or metastatic disease still have poor prognosis and are a therapeutic challenge with limited options, highlighting the need of new treatments and further investigations. Growing efforts to identify molecular alterations, understand the role of HPV and characterize immune contexture have expanded over the past years, providing further perspectives in prognostication, predictive biomarkers and therapeutic intervention. In this review, we provide an updated overview of current management of PeCa focusing on perioperative strategy. We discuss about new insights of the biology of PeCa and comment future directions in the field.

Utility of Minimally Invasive Technology for Inguinal Lymph Node Dissection in Penile Cancer

Our aim is to review the benefits as well as techniques, surgical outcomes, and complications of minimally invasive inguinal lymph node dissection (ILND) for penile cancer. The PubMed, Wiley Online Library, and Science Direct databases were reviewed in March 2020 for relevant studies limited to those published in English and within 2000–2020. Thirty-one articles describing minimally invasive ILND were identified for review. ILND has an important role in both staging and treatment of penile cancer. Minimally invasive technologies have been utilized to perform ILND in penile cancer patients with non-palpable inguinal lymph nodes and intermediate to high-risk primary tumors or patients with unilateral palpable non-fixed inguinal lymph nodes measuring less than 4 cm, including videoscopic endoscopic inguinal lymphadenectomy (VEIL) and robotic videoscopic endoscopic inguinal lymphadenectomy (RVEIL). Current data suggest that VEIL and RVEIL are feasible and safe with minimal intra-operative complications. Perhaps the strongest appeal for the use of minimally-invasive approaches is their faster post-operative recovery and less post-operative complications. As a result, patients can tolerate this procedure better and surgeons can offer surgery to patients who otherwise would not be a candidate or personally willing to undergo surgery. When compared to open technique, VEIL and RVEIL have similar dissected nodal count, a surrogate metric for oncological adequacy, and a none-inferior inguinal recurrence rate. Larger randomized studies are encouraged to investigate long-term outcome and survival rates using these minimally-invasive techniques for ILND.

Nomograms to predict the presence and extent of inguinal lymph node metastasis in penile cancer patients with clinically positive lymph nodes

Background

We developed two nomograms to predict the presence of inguinal lymph node metastasis (ILNM) and two or more histologically positive inguinal lymph nodes (ILNs) or one ILN with extranodal extension (ENE) in penile cancer patients with clinically positive inguinal lymph nodes (ILNs).

Methods

This study enrolled 75 penile squamous cell carcinoma (PSCC) patients with clinically positive ILNs. A binary logistic regression model was taken to screen out the risk factors for the presence of ILNM and two or more positive ILNs or one node with ENE in one side. Nomograms were plotted based on the results of multivariate logistic regression analysis.

Results

Our multivariate analysis demonstrated that the pathological grade, lymphovascular invasion (LVI), and short diameter (SD) of the largest ILN were independent risks. The bootstrap-corrected concordance index of the nomogram for the presence of ILNM was 0.948, and 0.878 for two or more histologically positive ILNs or one ILN with ENE on one side.

Conclusions

By incorporating tumor pathological grade, LVI and SD of the largest ILN, our nomograms can efficiently predict the ILNM in penile cancer patients with clinically positive nodes.

Robot-assisted inguinal lymphadenectomy: preliminary experience and perioperative outcomes from an Italian referral center

Background

Inguinal lymphadenectomy remains the gold standard for the treatment of inguinal lymph node metastases from penile carcinoma, melanoma, Merkel cell carcinoma, and squamous cell carcinoma (SCC). This procedure is associated with significant complications. In order to reduce morbidity, minimally invasive approaches have been described. We report our preliminary experience with robot-assisted inguinal lymphadenectomies (RAIL).

Methods

RAIL was performed according to the Sotelo technique. When indicated, a robot-assisted pelvic lymphadenectomy (RAPLND) was performed. We recorded age, sex, comorbidities, baseline oncologic diagnosis, operative time, hospital stay, lymph node yield, complications, time to drain removal, and oncologic outcomes.

Results

From December 2016 to February 2019, 13 patients underwent RAIL. Median age was 65 years (range: 31-85 years). Primary malignancy was melanoma in five patients, Merkel cell carcinoma in four, dermal duct tumor in one, penile cancer in two, and SCC in one. RAIL was monolateral in 12 cases and bilateral in 1 case. A total of 10 monolateral RAPLNDs were performed; median operative time was 279 min (range: 169-320). Median lymph nodes yield was 11 (range: 2-24) for monolateral RAIL and 9 for monolateral RAPLND (range 2-24). Median hospital stay was 4 days (range: 2-5). No procedure was converted to open. Median follow up was 16 months (range: 5-31). Five Clavien-Dindo grade I complications were recorded. Median time to drain removal was 32.5 days (range 7-65). Three recurrences and two cancer-related deaths were recorded.

Conclusions

RAIL is feasible and associated with a short hospital stay, with little incidence of perioperative complications.

Efficacy and Safety of Lateral Approach-Video Endoscopic Inguinal Lymphadenectomy (L-VEIL) over Open Inguinal Block Dissection: a Retrospective Study

This retrospective study compared the immediate post-operative short-term outcomes of Lateral Approach-Video Endoscopic Inguinal Lymphadenectomy (L-VEIL) and open surgery approach in patients with TNM stage N0 and N1 tumors. Inguinal lymphadenectomies performed for various TNM stage N0 and N1 cancers between January 2011 and December 2015 at a single center were analyzed by collecting data from operation theater records and case files. Mean blood loss, operative time, drain output, nodal yield, nodal positivity, and complications were analyzed as post-procedural outcomes. Among the 116 surgeries performed, 92 were open surgery and 24 were L-VEIL. Compared with open surgery, L-VEIL led to significantly lower blood loss (64.8 mL vs. 23.3 mL; p = 0.002), mean nodal yield (11.04 vs. 8.38; p = 0.001), and mean hospital stay (3.08 vs. 8 days; p < 0.001). However, the operative time was similar for both the groups (94.5 vs. 68.1 min; p = 0.08). Complications that were significantly low in L-VEIL were flap necrosis [RR 1.29; 95% CI (1.03-1.72); p < 0.001], wound dehiscence [RR 1.25; 95% CI (1.19-1.51); p = 0.005), wound infection [RR 1.34; 95% CI (1.19-1.51); p = 0.003], readmission [RR 1.3; 95% CI (1.17-1.44); p = 0.005], and re-surgery [p = 0.014]. Occurrence of complications such as lymphocele [RR 1.25; 95% CI (0.33-4.78); p = 0.5], lymphorrhea [RR 1.27; 95% CI (1.15-1.40); p = 0.5], and pedal edema [p = 0.2] were similar for both the approaches. L-VEIL was effective and safe compared with open inguinal block dissection in treatment of various TNM stage N0 and N1 urogenital and skin cancers.

Comparison of clinical feasibility and oncological outcomes between video endoscopic and open inguinal lymphadenectomy for penile cancer: A systematic review and meta-analysis

BACKGROUND

To compare the clinical feasibility and oncological outcomes of video endoscopic inguinal lymph node dissection (VE-ILND) and open inguinal lymph node dissection (O-ILND) in the management of penile cancer.

METHODS

We searched published articles in the PubMed, Embase, Cochrane Library, Web of science, China National Knowledge Infrastructure, and Wanfang databases. Data were extracted by 2 independent authors, and meta-analysis was performed by using Review Manager software version 5.3.

RESULTS

Ten studies were included. Compared with the O-ILND group, the VE-ILND group exhibited less intraoperative blood loss (standardized mean difference [SMD] = 3.12; 95% confidence intervals [95% CIs] [1.27, 4.98]; P = .001), shorter hospital stay (SMD = 1.77; 95% CIs [0.94, 2.60]; P < .001), shorter drainage time (SMD = 2.69; 95% CI [1.47, 3.91]; P < .001), reduced wound infection rate (odds ratio [OR] = 10.62; 95% CI [4.01, 28.10]; P < .001); reduced skin necrosis rate (OR = 7.48; 95% CI [2.79, 20.05]; P < .001), lower lymphedema rate (OR = 3.23; 95% CI [1.51, 6.88]; P = .002), equivalent lymphocele rate (OR = 0.83; 95% CI [0.31, 2.23]; P = .720), and parallel recurrence rate (OR = 1.54; 95% CI [0.41, 5.84]; P = 0.530). However, the number of dissected lymph nodes (OR = 0.25; 95% CI [0.03, 0.47]; P = .030) was slightly increased in the O-ILND group. GRADE recommendations of primary outcomes were shown in a summary of findings table.

CONCLUSIONS

For perioperative outcomes, VE-ILND is superior to O-ILND. For short-term oncological outcomes, VE-ILND is comparable to O-ILND. However, long-term oncological control still requires further verification.

Recent advances in the management of penile cancer

Penile cancer is a rare condition and can be very complex to manage. Advances in surgical techniques, imaging, pathological classification and patient pathways have led to improved patient care. The diagnosis of pre-malignant change, penile cancer and metastatic disease along with advances in their treatment are detailed in this review which aims to update clinicians from multiple specialties and countries on penile cancer.

Initial experience of video endoscopic inguinal Lymphadenectomy in a center located at northeast brazilian region

Introduction:

Video endoscopic inguinal lymphadenectomy – VEIL – has emerged as an alternative to reduce post-surgical complications (PSC) in patients with penile cancer submitted to inguinal lymphadenectomy (IL). In some series, these PSC are observed in more than 50% of patients. The objectives of the present study are to describe the initial experience of VEIL in a Hospital in Teresina, PI, Brazil, and to analyze PSC incidence.

Material and Methods:

Retrospective descriptive study of patients submitted to VEIL from March 2014 to November 2015. Data were collected regarding surgical time, bleeding, complications, lymph node number, conversion, global complications, drainage time, cellulitis, lymphocele, cutaneous necrosis, miocutaneous necrosis and hospitalization time.

Results:

20 lower limbs of 11 patients were operated. Mean age was 51.4 (24-72) years. Mean surgical time was 85 (60-120) minutes. No patient showed intrasurgical complications, bleeding > 50 mL or conversion. Three surgeries evolved with lower limb edema, 2 with lymphoceles and one patient had cutaneous necrosis and another bulging of surgical wound. Mean time of hospitalization was 4 (2-11) days. A mean of 5.8 (1-12) lymph nodes were dissected in each surgery.

Conclusion:

VEIL is a safe and easy technique with lower incidence of PSC that can be reproduced in small centers.

Saphenous-sparing laparoscopic inguinal lymphadenectomy

INTRODUCTION

Inguinal lymphadenectomy is an integral part in the management of penile cancer. Video endoscopic in-guinal lymphadenectomy (VEIL) is emerging as a minimally invasive treatment to reduce postoperative complications.

MATERIALS AND METHODS

62 years old man underwent glansectomy for a squamous cell carcinoma (pT1b). At the physical examination one left inguinal lymph node was detectable (cN1). The chest-abdomen-pelvis CT was negative for me-tastasis. A 10-mm optical trocar and two 5mm operating trocar were placed. The optical trocar was placed in the apex of Scarpa's triangle after a skin incision and after the creation of a subcutaneous space by blunt finger dissection. The pCO2 was 8-10mmHg. The surgical technique involved the removal of superficial lymph nodes according to the scheme described by Deseler and of the deep lymph nodes. Sparing main venous structures and closing lymphatic vessels is im-portant to reduce post operative complications. At the end of the procedure, a suction drain was placed per side.

RESULTS

Operative time was 90 minutes per side. Drains were removed on the seventh postoperative day. Hospital stay was 8 days and no postoperative complications occurred. The total number of nodes removed was 16 (8 per side) with 2 superficial positive nodes on the left side.

CONCLUSION

ILND is burned by a high complication rate. VEIL provides a less invasive approach and a saphenous-sparing technique ensures a lower complication rate, reducing lymphorrhea, skin necrosis and wound complications (1-3). In experienced laparoscopic hands, VEIL is a safe and effective treatment.

Comparing Outcomes of Robotic and Open Inguinal Lymph Node Dissection in Patients with Carcinoma of the Penis

PURPOSE

We compared outcomes between robot-assisted video endoscopic inguinal lymphadenectomy and open inguinal lymph node dissection in patients without bulky nodal metastasis in a tandem contemporary cohort.

MATERIALS AND METHODS

We retrospectively analyzed a prospectively maintained hospital registry of 51 patients who underwent robot-assisted video endoscopic inguinal lymphadenectomy and 100 treated with open inguinal lymph node dissection from 2012 to 2016 for groins without bulky nodal metastasis and who had a minimum 9-month followup. Complications were graded by the Clavien-Dindo classification, and nodal yield and disease recurrence during followup were assessed. Elastic net regression was used to select variables associated with major complications (Clavien 3a or greater) for multivariable analysis of plausible factors, including patient age, diabetes, body mass index, smoking, nodal stage, surgery type, sartorius transposition, saphenous vein transection and adjuvant radiotherapy. Penalized likelihood logistic regression methods were used for multivariate analysis to ascertain final effect sizes while accounting for sparse data bias.

RESULTS

Robot-assisted video endoscopic inguinal lymphadenectomy and open inguinal lymph node dissection had comparable median lymph node yields (13 vs 12.5). No patient experienced recurrence during the median followup of 40 months. Robot-assisted video endoscopic inguinal lymphadenectomy was associated with significantly lower hospital stay, days needing a drain in situ, incidence of major complications, edge necrosis, flap necrosis and severe limb edema. On multivariable analysis pathological nodal stage (OR 2.8, 95% CI 1.1-6.8, p = 0.027) and open inguinal lymph node dissection (OR 7.5, 95% CI 1.3-43, p = 0.024) emerged as independent risk factors associated with an increased risk of major complications.

CONCLUSIONS

Robot-assisted video endoscopic inguinal lymphadenectomy is a feasible technique which allows for a similar nodal yield while being associated with lower morbidity than open inguinal lymph node dissection in patients without bulky groin adenopathy.

Robotic inguinal lymphadenectomy for penile cancer: the why, how, and what

Squamous cell carcinoma of the penis (SCC-P) demonstrates a reliable pattern of spread to the lymph nodes of the groin. High grade and higher stage (pT1b or greater) SCC-P demonstrate a higher propensity for metastasis to the inguinal lymph nodes. Further, lymphadenopathy progresses in a predictable fashion, from superficial inguinal lymph nodes to deep inguinal lymph nodes to pelvic lymph nodes, with limited survival noted for those patients with progression to pelvic lymph nodes. Fortunately, inguinal lymphadenectomy can provide cure and improvement in RFS for SCC-P. Unfortunately open inguinal lymphadenectomy is associated with significant morbidity. Perhaps owing to this morbidity, inguinal lymphadenectomy is underperformed in the US. In other words, urologists only offer inguinal lymphadenectomy for high risk SCC-P in only a minority of cases and even when performed, lymph node yield is often unsatisfactory (less than 8 nodes per groin). Recently, a laparoendoscopic inguinal lymphadenectomy has been developed as a new approach to offer potentially curative lymph node resection while minimizing morbidity. The robotic platform has since been adapted for this approach and several reports demonstrate significant improvements in morbidity while maintaining oncologic equivalency. This review highlights the rationale for inguinal lymphadenectomy, inguinal lymph node anatomy, and technical considerations and outcomes of laparoscopic and robotic inguinal lymphadenectomy.