Inguinal hernia after radical retropubic prostatectomy for prostate cancer: a study of incidence and risk factors in comparison to no operation and lymphadenectomy

Incidence and risk factors of inguinal hernia after robot-assisted radical prostatectomy: a retrospective multicenter cohort study in Japan (the MSUG94 group)

To investigate the incidence and risk factors of inguinal hernia (IH) after robot-assisted radical prostatectomy (RARP) using a multicentric database. The present study used a multicentric database (the MSUG94) containing data on 3,195 Japanese patients undergoing RARP between 2012 and 2021. Surgical procedures utilized for IH prevention were as follows: isolation of the vas deferens, transection of the vas deferens, isolation of the spermatic vessels, and separation of the peritoneum from the internal inguinal ring. The primary and secondary endpoints were IH-free survival and any association between post-RARP IH and clinical covariates. The prophylactic effect of the above procedures were also assessed. IH prevention was attempted in 1,465 (46.4%) patients at five of the nine hospitals. During follow-up (median 24 months), post-RARP IH developed in 243 patients. The post-RARP IH-free survival rates at years 1, 2, and 3 were 94.3%, 91.7%, and 90.5%, respectively. Old age (hazard ratio [HR] 1.037; 95% confidence interval [CI] 1.014-1.061; p = 0.001), low BMI (HR 0.904; 95% CI 0.863-0.946: p < 0.001), and low hospital volume (HR 1.385; 95% CI 1.003-1.902; p = 0.048) were independently associated with IH development. None of the procedures for IH prevention were associated with IH development. Our findings may represent the current, real-world status of post-RARP IH in Japan. The prophylactic effects of the surgical procedures for IH prevention should be further investigated in well-designed, prospective studies to optimize the surgical technique.

Totally extraperitoneal laparoscopic inguinal hernia repair post-radical prostatectomy

BACKGROUND

Previous radical prostatectomy (RP) is considered a relative contraindication to the laparoscopic approach for inguinal hernia repair (LIHR). This study aimed to compare feasibility, safety and outcomes for patients undergoing totally extraperitoneal (TEP) LIHR who have previously undergone RP.

METHODS

This single surgeon, case-control study was performed using a prospective database of all patients undergoing TEP LIHR between 1995 and 2020. Patients who underwent previous RP were identified and compared to matched controls. Pre-operative, operative and post-operative data were analysed. The type of RP, open, laparoscopic or robotic, was identified and operative outcomes compared between the three groups.

RESULTS

6532 LIHR cases were identified. 165 had previously undergone RP and 6367 had undergone primary LIHR without prior RP. The groups were matched for age, demographics and co-morbidities. All operations were commenced laparoscopically, three converted to open in the LIHR + RP group and none in the LIHR group. Median operative time in patients with previous RP was longer, for unilateral (40 min vs. 21 min, p < 0.0001) and bilateral (71 vs. 30 min, p < 0.0001) LIHR. The majority of cases were performed as day stay procedures. There was no difference in immediate recovery parameters including time to discharge, complication rates, return to normal function, return to driving or post-operative analgesia. At 3 months of follow-up there was no difference in hernia recurrence for unilateral (2/128 vs 6/2234, p = 0.0658) or bilateral (0/24 vs 3/1490, p ≥ 0.999) LIHR, nor chronic pain as measured by patient awareness or restriction of activity. No differences in operative and post-operative outcomes were identified between the three types of RP, other than difference in operative time (p = 0.0336).

CONCLUSIONS

Previous RP should not be an absolute contraindication for TEP LIHR. Although previous RP adds complexity, in experienced hands TEP LIHR can be done safely, with outcomes equivalent to patients who have not previously undergone RP.

LAPAROSCOPIC APPROACH IN THE TREATMENT OF INGUINAL HERNIAS IN PATIENTS AFTER RADICAL PROSTATECTOMY: COMPARISON OF TARR AND TER RESULTS

Aim: To compare and evaluate the immediate and long-term results of performing transabdominal preperitoneal hernioplasty (TAPP) and total extraperitoneal hernioplasty (TEP) for the treatment of inguinal hernias after surgical treatment of prostate cancer;

Material and method: the study is a clinical analytical prospective study, with the use of randomization. The study included 88 patients with inguinal hernia, who were randomly divided into two groups (group A (n = 44) and group B (n = 44)). Patients in group A received TEP, those in group B received TAPP. The end points of the study were the results associated with the operation itself and the prognosis of the disease in the two groups.

Results: Group A: one patient had a scrotal hematoma, in 2 cases nosocomial pneumonia or infectious complications from the postoperative wound. The overall rate of early postoperative complications was 6.8%. In group B, the following postoperative complications were reported: in one case, intestinal injury, 1 case of acute urinary retention, 2 cases of scrotal hematoma. The overall incidence of early postoperative complications was 9.1%. There was no statistically significant difference in the incidence of postoperative complications between the two groups (χ = 0.009, P > 0.05).

Conclusion: During the analysis of the obtained results, no statistically significant difference was found in the duration of hospitalization, the volume of blood loss and the severity of the pain syndrome (P> 0.05); however, the comparison groups differed in the duration of the operation: the operation time in group A was longer than in group B. (P＜0.05).

Impact of Pelvic Anatomical Changes Caused by Radical Prostatectomy

Simple Summary

After radical prostatectomy, the pelvic anatomy is altered such that the postoperative structure differs from the preoperative one, resulting in a variety of complications. In this review, the complications and mechanisms of pelvic anatomical changes associated with radical prostatectomy, as well as countermeasures, are outlined. An analysis of the anatomical mechanisms that cause complications after radical prostatectomy using imaging and other modalities is in progress. In addition, many surgical techniques that ensure the prevention of postoperative complications have been reported, and their usefulness has been evaluated. The preservation of as much periprostatic tissue and periprostatic structures as possible may lead to favorable postoperative functions, as long as the cancer condition permits.

Abstract

During radical prostatectomy, the prostate is removed along with the seminal vesicles, and the urinary tract is reconstructed by dropping the bladder onto the pelvic floor and suturing the bladder and urethra together. This process causes damage to the pelvic floor and postoperative complications due to the anatomical changes in the pelvic floor caused by the vesicourethral anastomosis. Urinary incontinence and erectile dysfunction are major complications that impair patients’ quality of life after radical prostatectomy. In addition, the shortening of the penis and the increased prevalence of inguinal hernia have been reported. Since these postoperative complications subsequently affect patients’ quality of life, their reduction is a matter of great interest, and procedural innovations such as nerve-sparing techniques, Retzius space preservation, and inguinal hernia prophylaxis have been developed. It is clear that nerve sparing is useful for preserving the erectile function, and nerve sparing, urethral length preservation, and Retzius sparing are useful for urinary continence. The evaluation of pre- and postoperative imaging to observe changes in pelvic anatomy is also beginning to clarify why these techniques are useful. Changes in pelvic anatomy after radical prostatectomy are inevitable and, therefore, postoperative complications cannot be completely eliminated; however, preserving as much of the tissue and structure around the prostate as possible, to the extent that prostate cancer control is not compromised, may help reduce the prevalence of postoperative complications.

The risk of inguinal hernia repair after radical prostatectomy - a population-based cohort study

OBJECTIVES

A nationwide population-based register study will evaluate the risk of postoperative inguinal hernia repair after primary curative-intent treatment of prostate carcinoma (PCa).

BACKGROUND

Several previous studies have suggested an increased risk of inguinal hernia repair after prostatectomy. Only a few studies have compared the risk by PCa treatment modalities.

METHODS

Data were collected between the years 1998 and 2016 from the national hospital discharge database HILMO and between the years 1998 and 2015 from the Finnish cancer registry to identify all men with prostate cancer with data on primary treatment available and information on inguinal hernia diagnoses and procedures among them. The risk of inguinal hernia repair among men managed with prostatectomy was compared to those treated with radiation therapy. Participants treated with prostatectomy were analyzed as a whole and separately stratified into subgroups managed with mini-invasive or open surgery. Multivariate Cox regression with adjustment for age and comorbidities was used for analysis.

RESULTS

A total of 7207 cases of PCa were included in the study. 4595 men were treated with radical prostatectomy and 2612 with radiation therapy. Overall, the risk of hernia repair was higher among men treated with prostatectomy compared to men who received radiation therapy as the primary PCa treatment (HR 1.42, 95% CI 1.14-1.77). The risk did not differ markedly by the prostatectomy method.

CONCLUSION

Prostate cancer treatment with prostatectomy is associated with an increased risk of inguinal hernia surgery than external beam radiation therapy treatment. This risk should be taken into account when planning PCa treatment.

Minimally Invasive Hernia Repair in Robot-assisted Radical Prostatectomy

Inguinal hernia is a recognized complication of radical prostatectomy. Previous hernia repair, wound infection, midline incision, low BMI, and preexisting or subclinical hernia contribute to the risk of inguinal hernia following radical prostatectomy. Concomitant hernia repair at the time of pelvic surgery has risks and benefits. Repair during surgery prevents future hernia-related complications and saves the need for an additional procedure. However, hernia repair at the time of radical prostatectomy includes the risk of mesh infection, post-operative pain, adhesions, lack of experience, and overall minimal risk with watchful waiting. The robotic transperitoneal approach is the most commonly used technique for concomitant inguinal hernia repair with a modest addition to operative time and minimal postoperative complications. Recurrence rates following concomitant hernia repair during pelvic surgery are low.

Asymptomatic patent processus vaginalis is a risk for developing external inguinal hernia in adults: A prospective cohort study

Background

Inguinal hernia repair is common for children and adults across the world, but the mechanism behind hernia onset still requires elucidation. This prospective study aims to determine whether patent processus vaginalis (PPV) is a factor in the development of external inguinal hernias.

Method

We enrolled 1008 patients who underwent laparoscopic surgery and in whom the inguinal region was observed. If processus vaginalis existed, we measured the diameter and length. Patients were followed for three years after surgery to investigate the incidence of external inguinal hernias.

Result

No significant differences were found between age groups. Furthermore, no difference could be recognized in length or opening diameter of the PPVs between age groups. Three-year follow up was possible for 765 of 1008 patients enrolled in this study (76%), eight of whom, all male, developed external inguinal hernia during this period. Multivariate analysis for onset of inguinal hernia onset in male patients showed that PPV and length of the right PPV were independent risk factors for development of external inguinal hernia.

Conclusion

The patency rate, length, and diameter of the processus vaginalis do not differ according to age. The patency of the processus vaginalis in male patients is an independent risk factor for development of external inguinal hernia in adults.

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The patency rate,length, and diameter of the processus vaginalis do not differ according to age.

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That the patency of the processus vaginalis in male is an independent risk factor for development of external inguinal hernia in adults.

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Length of the right peritoneal sheath may be a factor in the development of inguinal hernias in males.

Inguinal hernia associated with radical prostatectomy

PURPOSE

Inguinal hernias are a long-term complication of radical prostatectomy (RP). We investigated the clinical features and surgical outcomes of patients with inguinal hernias developing after RP.

METHODS

We retrospectively investigated 80 patients (86 hernias) who underwent inguinal hernia repair after RP. We repaired all RP-associated inguinal hernias by the tension-free method with a mesh plug. We also retrospectively investigated 729 adult male patients (779 hernias) who underwent inguinal hernia repair as a control group.

RESULTS

A higher proportion of the 80 post-RP patients developed right-sided hernias (53 [66%]) than the controls, which was significant. A higher proportion of the 86 post-RP hernias were indirect (76 [89%]) than the controls, which was also significant. The mean times to hernia development after robot-assisted RP, laparoscopic RP, and radical retropubic prostatectomy were 20.3, 48.9, and 73.2 months, respectively. The total complication rates did not differ significantly between the post-RP group and control group.

CONCLUSION

The proportion of post-RP patients with right-sided hernia was significantly higher than controls. Indirect inguinal hernias were predominant among the post-RP hernias. The mesh plug method is safe and effective for inguinal hernia repair after RP. The time from robot-assisted RP to the development of inguinal hernia was shorter than those from laparoscopic RP, and radical retropubic prostatectomy.

Comparison of Retzius-sparing robot-assisted laparoscopic radical prostatectomy vs standard robot-assisted radical prostatectomy: a meta-analysis

Background

To compare the postoperative continence and clinical outcomes of Retzius-sparing robot-assisted laparoscopic radical prostatectomy (RS-RALP) with non-RS RALP for patients with prostate cancer.

Methods

We searched PUBMED, EMBASE and the Cochrane Central Register from 1999 to 2019 for studies comparing RS-RALP to non-RS RALP for the treatment of prostate cancer. We used RevMan 5.2 to pool the data.

Results

A total of seven studies involving 1620 patients were included in our meta-analysis. No significant difference was found in positive surgical margins (PSM), bilateral nerve-sparing, postoperative hernia, complications, blood loss, or operative time. Postoperative continence was better with RS-RALP compared with non-RS RALP (OR = 1.02, OR: 2.86, 95% CI 1.94–4.20, p < 0.05).

Conclusions

RS-RALP had a better recovery of postoperative continence than non-RS RALP. The perioperative outcomes were comparable for the two methods.

Risk of hernia formation after radical prostatectomy: a comparison between open and robot-assisted laparoscopic radical prostatectomy within the prospectively controlled LAPPRO trial

Purpose

In addition to incisional hernia, inguinal hernia is a recognized complication to radical retropubic prostatectomy. To compare the risk of developing inguinal and incisional hernias after open radical prostatectomy compared to robot-assisted laparoscopic prostatectomy.

Method

Patients planned for prostatectomy were enrolled in the prospective, controlled LAPPRO trial between September 2008 and November 2011 at 14 hospitals in Sweden. Information regarding patient characteristics, operative techniques and occurrence of postoperative inguinal and incisional hernia were retrieved using six clinical record forms and four validated questionnaires.

Results

3447 patients operated with radical prostatectomy were analyzed. Within 24 months, 262 patients developed an inguinal hernia, 189 (7.3%) after robot-assisted laparoscopic prostatectomy and 73 (8.4%) after open radical prostatectomy. The relative risk of having an inguinal hernia after robot-assisted laparoscopic prostatectomy was 18% lower compared to open radical retropubic prostatectomy, a non-significant difference. Risk factors for developing an inguinal hernia after prostatectomy were increased age, low BMI and previous hernia repair. The incidence of incisional hernia was low regardless of surgical technique. Limitations are the non-randomised setting.

Conclusions

We found no difference in incidence of inguinal hernia after open retropubic and robot-assisted laparoscopic radical prostatectomy. The low incidence of incisional hernia after both procedures did not allow for statistical analysis. Risk factors for developing an inguinal hernia after prostatectomy were increased age and BMI.

Electronic supplementary material

The online version of this article (10.1007/s10029-020-02178-7) contains supplementary material, which is available to authorized users.

Consensus on international guidelines for management of groin hernias

BACKGROUND

Groin hernia management has a significant worldwide diversity with multiple surgical techniques and variable outcomes. The International guidelines for groin hernia management serve to help in groin hernia management, but the acceptance among general surgeons remains unknown. The aim of our study was to gauge the degree of agreement with the guidelines among health care professionals worldwide.

METHODS

Forty-six key statements and recommendations of the International guidelines for groin hernia management were selected and presented at plenary consensus conferences at four international congresses in Europe, the America's and Asia. Participants could cast their votes through live voting. Additionally, a web survey was sent out to all society members allowing online voting after each congress. Consensus was defined as > 70% agreement among all participants.

RESULTS

In total 822 surgeons cast their vote on the key statements and recommendations during the four plenary consensus meetings or via the web survey. Consensus was reached on 34 out of 39 (87%) recommendations, and on six out of seven (86%) statements. No consensus was reached on the use of light versus heavy-weight meshes (69%), superior cost-effectiveness of day-case laparo-endoscopic repair (69%), omitting prophylactic antibiotics in hernia repair, general or local versus regional anesthesia in elderly patients (55%) and re-operation in case of immediate postoperative pain (59%).

CONCLUSION

Globally, there is 87% consensus regarding the diagnosis and management of groin hernias. This provides a solid basis for standardizing the care path of patients with groin hernias.

The relationship between inguinal hernia and minimally-invasive surgery for prostate cancer: A systematic review of the literature

OBJECTIVE

We aimed to perform a systematic review about the relationship between inguinal hernia and surgery for prostate cancer.

BACKGROUND

Diagnosis of abdominal wall defects and prostate cancer may be either synchronous or metachronous. The convenience and safety of combined prostatectomy and hernioplasty, the incidence of hernias after prostatectomy and the feasibility of prostatectomy in patients with previous laparoscopic hernioplasty are still debated.

METHODS

PubMed and Embase were queried by dedicated search strings. Two researchers independently reviewed the pooled references and selected the articles of interest, including reviews.

RESULTS

Sixty-five studies were evaluated, 22 of them analysed the feasibility and the outcomes of a combined surgery, namely one-stage radical prostatectomy and herniorrhaphy or hernioplasty. Literature evidences support the combined intervention to patients suffering from an inguinal hernia and a prostate cancer amenable of radical prostatectomy. Sixteen studies addressing the potential increase in the occurrence of inguinal hernia after radical prostatectomy were evaluated. Approximately 15% of patients who undergo retro-pubic radical prostatectomy will develop inguinal hernia. It is suggested that the incidence might be lower in laparoscopic prostatectomy series, particularly in case of transperitoneal approach. The median time to the appearance of the hernia is around 6 months. After evaluation of 14 studies, it is concluded that laparoscopic hernioplasty does not preclude prostatectomy but hinders further pelvic surgery.

CONCLUSIONS

One-stage combined hernioplasty and radical prostatectomy may be accepted except in cases of lymph-nodes dissection and/or positive hydro-distress test of the urethro-vesical anastomosis. Accurate patient's counselling and dedicated consent form are mandatory, in the setting of an experienced multidisciplinary team.

Open mesh plug repair for inguinal hernia after femoro-femoral arterial bypass: Two retrospective case series

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We experienced two case of inguinal hernia after femoro-femoral arterial bypass (FFB).

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The mesh plug repair is safe and useful for the treatment of inguinal hernia after FFB.

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Preoperative CT is helpful for understanding precise anatomy which facilitates surgical planning.

Introduction

Reports on inguinal hernia repair after femoral arterial bypass are limited, and a recommended procedure has not been established.

Presentation of case

Case 1. A 77-year-old man who had a history of femoro-femoral arterial bypass (FFB) for limb graft occlusion following endovascular aortic repair for abdominal aortic aneurysm presented with a left inguinal hernia. CT revealed an inguinal hernia and the FFB graft was identified in the subcutaneous plane. We selected mesh-plug repair under local infiltration anesthesia and his postoperative course was uneventful. Case 2. A 73-year-old man who had a history of FFB for occlusion the branch of the graft of endovascular stent for abdominal aortic aneurysm presented with a left inguinal hernia. CT revealed an inguinal hernia and the FFB graft was identified in the subcutaneous plane. We performed mesh-plug repair under general anesthesia and his postoperative course was uneventful. The patients are free of recurrence of the hernia or complication of the FFB graft as of 13 months and 30 months after the surgery, respectively.

Discussion

We herein report two cases of successful open mesh plug repair for inguinal hernia after FFB.

Conclusion

The mesh plug repair is safe and useful for the treatment of inguinal hernia after FFB, for which preoperative CT is helpful for understanding precise anatomy which facilitates surgical planning.

Inguinal hernias appearing after lateral lymph node dissection via extraperitoneal approach for advanced lower rectal cancer

PURPOSE

Lateral lymph node dissection (LLND) is performed for advanced lower rectal cancer (ALRC) in Japan. The LLND in laparotomy is performed via the extraperitoneal approach, which is similar to radical retropubic prostatectomy (RRP). Inguinal hernias (IHs) appearing after RRP are common. However, there are few reports about IHs appearing after LLND.

METHODS

In part A, we retrospectively investigated 108 patients who underwent LLND for ALRC between January 2004 and December 2014. In part B, we compared 13 patients who underwent IH repair after LLND and 57 patients who underwent IH repair after RRP in the same period.

RESULTS

In part A, the incidence of IHs after LLND was 7% (8/108). All eight patients who developed IHs were male, and their median age was 60 years. More than 80% of IHs observed were the unilateral lateral type. In part B, the interval between the previous operation and IH occurrence was 4.9 years on average. Furthermore, 2 out of the 13 patients developed additional IHs occurring on the opposite side within 2 years.

CONCLUSIONS

The characteristics associated with developing IHs after LLND were similar to those after RRP. Any pelvic operation via the extraperitoneal approach has a risk of IHs, and surgeons should pay attention to IHs after surgery.

The Safety and Feasibility of the Single-Port Laparoscopic Transabdominal Preperitoneal Inguinal Hernia Repair Through Retropubic Radical Prostatectomy Scar, Prospective, Case Series

Introduction: To avoid an additional scar, our novel single-port laparoscopic inguinal hernia repair technique that utilizes the previous prostatectomy scar was conducted. Inguinal hernia is one of the most common complications of radical prostatectomy that require surgical repair. At present, such surgical repair inevitably leaves additional scars on the abdominal wall. This case series study was performed to determine the safety and feasibility of this procedure in patients with inguinal hernia after radical prostatectomy. Subjects and Methods: All patients who underwent retropubic radical prostatectomy (RRP) in 2012-2016 and developed an inguinal hernia as a complication of RRP agreed to undergo single-port laparoscopic transabdominal preperitoneal (TAPP) repair of the inguinal hernia through the RRP scar. TAPP repair was performed using a homemade glove single port through a 2 cm wide incision into the upper part of the RRP scar. The duration between RRP and the development of inguinal hernia, TAPP repair operative time, follow-up duration, TAPP repair-related complications, and rate of inguinal hernia recurrence were recorded. Results: Of the 131 patients who underwent RRP in the study period, 12 (mean age, 67.58 ± 5.73 years) developed inguinal hernia during an average follow-up duration of 33.58 ± 16.49 months. None had a previous history of inguinal hernia. The inguinal hernias developed on average 3.83 ± 1.70 months after RRP. The mean operative time was 64.58 ± 6.20 minutes. There were no surgical complications or recurrence of inguinal hernia during follow-up. Conclusions: Single-port laparoscopic TAPP inguinal hernia repair through the previous prostatectomy scar is safe and feasible.

Robot-Assisted Radical Prostatectomy: A Step-by-Step Guide

Radical prostatectomy remains an important means to treat prostate cancer. A major limiting factor to radical prostatectomy is short- and long-term complications, especially incontinence and sexual dysfunction. With the advent of robotic radical prostatectomy, the ability to easily evaluate technical issues with video has been realized. In this article, we present a step-by-step examination of our procedure and our results over the past 5 years.

International guidelines for groin hernia management

INTRODUCTION

Worldwide, more than 20 million patients undergo groin hernia repair annually. The many different approaches, treatment indications and a significant array of techniques for groin hernia repair warrant guidelines to standardize care, minimize complications, and improve results. The main goal of these guidelines is to improve patient outcomes, specifically to decrease recurrence rates and reduce chronic pain, the most frequent problems following groin hernia repair. They have been endorsed by all five continental hernia societies, the International Endo Hernia Society and the European Association for Endoscopic Surgery.

METHODS

An expert group of international surgeons (the HerniaSurge Group) and one anesthesiologist pain expert was formed. The group consisted of members from all continents with specific experience in hernia-related research. Care was taken to include surgeons who perform different types of repair and had preferably performed research on groin hernia surgery. During the Group's first meeting, evidence-based medicine (EBM) training occurred and 166 key questions (KQ) were formulated. EBM rules were followed in complete literature searches (including a complete search by The Dutch Cochrane database) to January 1, 2015 and to July 1, 2015 for level 1 publications. The articles were scored by teams of two or three according to Oxford, SIGN and Grade methodologies. During five 2-day meetings, results were discussed with the working group members leading to 136 statements and 88 recommendations. Recommendations were graded as "strong" (recommendations) or "weak" (suggestions) and by consensus in some cases upgraded. In the Results and summary section below, the term "should" refers to a recommendation. The AGREE II instrument was used to validate the guidelines. An external review was performed by three international experts. They recommended the guidelines with high scores. The risk factors for inguinal hernia (IH) include: family history, previous contra-lateral hernia, male gender, age, abnormal collagen metabolism, prostatectomy, and low body mass index. Peri-operative risk factors for recurrence include poor surgical techniques, low surgical volumes, surgical inexperience and local anesthesia. These should be considered when treating IH patients. IH diagnosis can be confirmed by physical examination alone in the vast majority of patients with appropriate signs and symptoms. Rarely, ultrasound is necessary. Less commonly still, a dynamic MRI or CT scan or herniography may be needed. The EHS classification system is suggested to stratify IH patients for tailored treatment, research and audit. Symptomatic groin hernias should be treated surgically. Asymptomatic or minimally symptomatic male IH patients may be managed with "watchful waiting" since their risk of hernia-related emergencies is low. The majority of these individuals will eventually require surgery; therefore, surgical risks and the watchful waiting strategy should be discussed with patients. Surgical treatment should be tailored to the surgeon's expertise, patient- and hernia-related characteristics and local/national resources. Furthermore, patient health-related, life style and social factors should all influence the shared decision-making process leading up to hernia management. Mesh repair is recommended as first choice, either by an open procedure or a laparo-endoscopic repair technique. One standard repair technique for all groin hernias does not exist. It is recommended that surgeons/surgical services provide both anterior and posterior approach options. Lichtenstein and laparo-endoscopic repair are best evaluated. Many other techniques need further evaluation. Provided that resources and expertise are available, laparo-endoscopic techniques have faster recovery times, lower chronic pain risk and are cost effective. There is discussion concerning laparo-endoscopic management of potential bilateral hernias (occult hernia issue). After patient consent, during TAPP, the contra-lateral side should be inspected. This is not suggested during unilateral TEP repair. After appropriate discussions with patients concerning results tissue repair (first choice is the Shouldice technique) can be offered. Day surgery is recommended for the majority of groin hernia repair provided aftercare is organized. Surgeons should be aware of the intrinsic characteristics of the meshes they use. Use of so-called low-weight mesh may have slight short-term benefits like reduced postoperative pain and shorter convalescence, but are not associated with better longer-term outcomes like recurrence and chronic pain. Mesh selection on weight alone is not recommended. The incidence of erosion seems higher with plug versus flat mesh. It is suggested not to use plug repair techniques. The use of other implants to replace the standard flat mesh in the Lichtenstein technique is currently not recommended. In almost all cases, mesh fixation in TEP is unnecessary. In both TEP and TAPP it is recommended to fix mesh in M3 hernias (large medial) to reduce recurrence risk. Antibiotic prophylaxis in average-risk patients in low-risk environments is not recommended in open surgery. In laparo-endoscopic repair it is never recommended. Local anesthesia in open repair has many advantages, and its use is recommended provided the surgeon is experienced in this technique. General anesthesia is suggested over regional in patients aged 65 and older as it might be associated with fewer complications like myocardial infarction, pneumonia and thromboembolism. Perioperative field blocks and/or subfascial/subcutaneous infiltrations are recommended in all cases of open repair. Patients are recommended to resume normal activities without restrictions as soon as they feel comfortable. Provided expertise is available, it is suggested that women with groin hernias undergo laparo-endoscopic repair in order to decrease the risk of chronic pain and avoid missing a femoral hernia. Watchful waiting is suggested in pregnant women as groin swelling most often consists of self-limited round ligament varicosities. Timely mesh repair by a laparo-endoscopic approach is suggested for femoral hernias provided expertise is available. All complications of groin hernia management are discussed in an extensive chapter on the topic. Overall, the incidence of clinically significant chronic pain is in the 10-12% range, decreasing over time. Debilitating chronic pain affecting normal daily activities or work ranges from 0.5 to 6%. Chronic postoperative inguinal pain (CPIP) is defined as bothersome moderate pain impacting daily activities lasting at least 3 months postoperatively and decreasing over time. CPIP risk factors include: young age, female gender, high preoperative pain, early high postoperative pain, recurrent hernia and open repair. For CPIP the focus should be on nerve recognition in open surgery and, in selected cases, prophylactic pragmatic nerve resection (planned resection is not suggested). It is suggested that CPIP management be performed by multi-disciplinary teams. It is also suggested that CPIP be managed by a combination of pharmacological and interventional measures and, if this is unsuccessful, followed by, in selected cases (triple) neurectomy and (in selected cases) mesh removal. For recurrent hernia after anterior repair, posterior repair is recommended. If recurrence occurs after a posterior repair, an anterior repair is recommended. After a failed anterior and posterior approach, management by a specialist hernia surgeon is recommended. Risk factors for hernia incarceration/strangulation include: female gender, femoral hernia and a history of hospitalization related to groin hernia. It is suggested that treatment of emergencies be tailored according to patient- and hernia-related factors, local expertise and resources. Learning curves vary between different techniques. Probably about 100 supervised laparo-endoscopic repairs are needed to achieve the same results as open mesh surgery like Lichtenstein. It is suggested that case load per surgeon is more important than center volume. It is recommended that minimum requirements be developed to certify individuals as expert hernia surgeon. The same is true for the designation "Hernia Center". From a cost-effectiveness perspective, day-case laparoscopic IH repair with minimal use of disposables is recommended. The development and implementation of national groin hernia registries in every country (or region, in the case of small country populations) is suggested. They should include patient follow-up data and account for local healthcare structures. A dissemination and implementation plan of the guidelines will be developed by global (HerniaSurge), regional (international societies) and local (national chapters) initiatives through internet websites, social media and smartphone apps. An overarching plan to improve access to safe IH surgery in low-resource settings (LRSs) is needed. It is suggested that this plan contains simple guidelines and a sustainability strategy, independent of international aid. It is suggested that in LRSs the focus be on performing high-volume Lichtenstein repair under local anesthesia using low-cost mesh. Three chapters discuss future research, guidelines for general practitioners and guidelines for patients.

CONCLUSIONS

The HerniaSurge Group has developed these extensive and inclusive guidelines for the management of adult groin hernia patients. It is hoped that they will lead to better outcomes for groin hernia patients wherever they live. More knowledge, better training, national audit and specialization in groin hernia management will standardize care for these patients, lead to more effective and efficient healthcare and provide direction for future research.

Inguinal hernia after radical prostatectomy: is it different in the minimally invasive era?

With an increasing incidence of prostate cancer in the UK, the number of radical prostatectomies carried out is also increasing. In 2014, 13% of men diagnosed with prostate cancer had a radical prostatectomy. Almost half of those were carried out with a robotic assisted approach; the remainder were performed by open surgery, conventional laparoscopy or transperineal prostatectomy. Inguinal hernia post radical prostatectomy is rarely discussed during the consent process but the incidence is estimated to be between 15% and 20%. There is a number of theories as to why this might occur including a weakness in the myopectineal orifice and as a result of opening the endopelvic fascia. In this article we aim to review the evidence for the development of inguinal herniae post radical prostatectomy and to assess whether the advent of minimally invasive surgery has altered this process.

Outcomes of Minimally Invasive Inguinal Hernia Repair at the Time of Robotic Radical Prostatectomy

Abdominal straining associated with voiding dysfunction or constipation has traditionally been associated with the development of abdominal wall hernias. Thus, classic general surgery dictum recommends that any coexistent bladder outlet obstruction should be addressed by the urologist before patients undergo surgical repair of a hernia. While organ-confined prostate cancer is usually not associated with the development of lower urinary tract symptoms, a modest proportion of patients treated with radical prostatectomy may have coexisting benign prostatic hyperplasia with elevated symptom scores and hernias may be incidentally detected at the time of surgery. Furthermore, dissection of the space of Retzius during retropubic or minimally invasive prostatectomy may result exposure of abdominal wall defects which may have been present, but asymptomatic if plugged with preperitoneal fat. Herein we examine the literature regarding the incidence of postoperative inguinal hernias after prostatectomy, review potential risk factors which could aid in preoperative patient identification, and discuss the published experience regarding concurrent hernia repair at the time of open or minimally invasive radical prostatectomy.

Incidence and risk factors of inguinal hernia after robot-assisted radical prostatectomy

Background

Robot-assisted radical prostatectomy (RARP) has now become a gold standard approach in radical prostatectomy. The aim of this study was to investigate incidence and risk factors of inguinal hernia (IH) after RARP.

Methods

This study included 307 consecutive men who underwent RARP for the treatment of prostate cancer from January 2011 to August 2015. The incidence of IH after RARP was investigated. Clinical and pathological factors were also investigated to assess relationship with development of postoperative IH.

Results

Median follow-ups were 380 days, and median age of patients was 67 years. Incidence of IH was 11.3, 14.0, and 15.4% at 1, 2, and 3 years after RARP, respectively. Postoperative IH occurrence was significantly associated with low surgeon experience and postoperative incontinence at 3 or 6 months after surgery (P = 0.019, P = 0.002, and P = 0.016, respectively).

Conclusions

Most of the IH occurred within the first 2 years with a rate of 14%. Incidence of IH after RARP was significantly associated with surgical experience and incontinence outcomes.

Prevention Technique of Postoperative Inguinal Hernia in Patients Undergoing Radical Prostatectomy for Localized Prostate Cancer

To prevent inguinal hernia after retropubic radical prostatectomy, many urologists have utilized a prevention technique of inguinal hernia at the same time as retropubic radical prostatectomy. Here, we report the clinical benefit of the prevention technique of inguinal hernia as well as risk factors for the incidence of inguinal hernia. We investigated the medical records of 223 men who underwent retropubic radical prostatectomy for clinically localized prostate cancer between January 2007 and March 2013 at our medical center. We assessed the association between the postoperative inguinal hernia and variables such as age, body mass index, and previous abdominal surgery. Inguinal hernia-free survival was analyzed to verify risk factors of postoperative inguinal hernia. Of 223 patients, 67 (30 %) received prevention of inguinal hernia and 156 (70 %) did not. The median follow-up period after retropubic radical prostatectomy was 36 months (range, 3-58 months). Thirty one (14 %) patients developed unilateral or bilateral inguinal hernia after retropubic radical prostatectomy. The rate of postoperative inguinal hernia in prevented and non-prevented group was 3 % (2 of 67) and 19 % (29 of 156), respectively (P < 0.01, Mann-Whitney U test). Moreover, postoperative inguinal hernia-free survival in the prevention group was significantly longer than that in the non-prevented group (P < 0.01, log-rank test). In the prevention group, 1-, 2-, and 3-year inguinal hernia-free survival rates were 100 %, 96 %, and 96 %, respectively. Other clinical factors including age, body mass index, previous abdominal surgery, and previous inguinal hernia were not associated with the incidence of inguinal hernia in our cohort. The prevention technique was simple and safe to perform, and it could increase inguinal hernia-free survival rates after retropubic radical prostatectomy.

Minimally Invasive Hernia Repair in Robot-Assisted Radical Prostatectomy

Inguinal hernia is a recognized complication of radical prostatectomy. Previous hernia repair, wound infection, midline incision, low body mass index, and preexisting or subclinical hernia contribute to the risk of inguinal hernia after radical prostatectomy. Concomitant hernia repair at the time of pelvic surgery has risks and benefits. Repair during surgery prevents future hernia-related complications and saves the need for an additional procedure. However, hernia repair at the time of radical prostatectomy includes the risk of mesh infection, postoperative pain, adhesions, lack of experience, and overall minimal risk with watchful waiting. The robotic transperitoneal approach is the most commonly used technique for concomitant inguinal hernia repair with a modest addition to operative time and minimal postoperative complications. Recurrence rates after concomitant hernia repair during pelvic surgery are low.

Preoperative International Prostate Symptom Score Predictive of Inguinal Hernia in Patients Undergoing Robotic Prostatectomy

PURPOSE

Studies have shown that encountering an inguinal hernia during robotic radical prostatectomy is not uncommon. We reviewed our experience with simultaneous robotic prostatectomy and mesh hernia repair to identify variables predictive of a hernia.

MATERIALS AND METHODS

Our cohort consisted of 693 consecutive men who underwent robotic radical prostatectomy as performed by 1 surgeon. Hernias were repaired with mesh composed of equal parts of absorbable polyglecaprone-25 and nonabsorbable polypropylene monofilament. Preoperative variables potentially predictive of an inguinal hernia were evaluated.

RESULTS

Inguinal hernias were encountered in 55 of 639 patients (8.6%), of which 22.3% were bilateral for a total of 68 hernia sides. Only 26 of 55 hernias (47.2%) were evident preoperatively. Men with a preoperative I-PSS (International Prostate Symptom Score) of 15 or greater had a 22.4% chance (30 of 134) of requiring a hernia repair compared with 5% in those without such a score (OR 5.54, 95% CI 3.13-9.81, p <0.0001). There were no differences between the hernia and nonhernia groups in prostate size, body mass index, age, blood loss, transfusions, operative time, length of stay or any Clavien grade II-V complication. In 47 patients there was 1 recurrence at a median followup of 27.9 months. There were no cases of mesh associated pain or erosion.

CONCLUSIONS

Independent of prostate size, men with preoperative lower urinary tract dysfunction were at 5 times the risk of a hernia at robotic radical prostatectomy (22.4% vs 5%). Given that half of the hernias were subclinical, patients with an I-PSS of 15 or greater should be counseled about the potential need for hernia repair at robotic radical prostatectomy.

Laparoscopic Radical Prostatectomy Alone or With Laparoscopic Herniorrhaphy

BACKGROUND AND OBJECTIVES

Prostate cancer and inguinal hernia are common health issues in men aged more than 50 years. Recently, more data are accumulating that laparoscopic radical prostatectomy (LRP) and laparoscopic inguinal hernia repair (LIHR) can be performed in the same operation. The purpose of this study was to compare patients who underwent simultaneous extraperitoneal LRP (E-LRP) and LIHR with control patients who underwent only E-LRP in a matched-pairs design.

METHODS

Medical records of 215 patients were evaluated, and 20 patients who underwent E-LRP+LIHR were compared with 40 patients who underwent only E-LRP in a matched-pairs analysis. Preoperative clinical parameters (age, body mass index, prostate-specific antigen, clinical stage, Gleason score of the prostate biopsy, and prostate volume) and operative data (operation time, duration of catheterization, length of hospital stay, estimated blood loss, time to perform the anastomosis and its quality, and the percentage of patients with bilateral lymphadenectomy) were evaluated, as well as postoperative parameters (pathological stage, Gleason score, specimen weight, follow-up duration, biochemical recurrence, complication rates, and duration of postoperative analgesic treatment).

RESULTS

No statistically significant differences were found in the preoperative and operative parameters between the 2 study groups. Pathological parameters and the follow-up period and complication rates were similar between the 2 groups.

CONCLUSION

Performing LIHR and E-LRP during the same operation is safe and feasible in the treatment of patients with prostate cancer and inguinal hernia.

Prophylactic procedure for inguinal hernia after radical retropubic prostatectomy

PURPOSE

The incidence of inguinal hernias (IH) after radical retropubic prostatectomy (RRP) has been reported to range from 10 to 50 %, but no prophylaxis for IH has yet been established. We proposed a prophylaxis for IH after RRP.

METHODS

A total of 180 patients underwent RRP at our hospital between 2000 and 2011. In January 2008, we started to perform a prophylaxis involving the dissection of the processus vaginalis. This procedure was performed in 73 patients. We then compared the incidence of IH between the patients that did (prophylaxis group) and did not (no prophylaxis group) undergo the prophylaxis. We also studied the risk factors for IH after RRP.

RESULTS

In the no prophylaxis group, 25 (23 %) of the 107 patients developed IH, and the IH-free rate at one postoperative year was 86 %. In contrast, only 3 (4.1 %) of the 73 patients in the prophylaxis group developed IH, resulting in IH-free rate of 96 % at one postoperative year (P = 0.0235). Among the patients in the no prophylaxis group, the mean body mass index of the hernia group was significantly lower than that of the no hernia group (P = 0.006).

CONCLUSION

Our results suggest that our prophylaxis is useful for preventing IH after RRP.

Simple method for preventing inguinal hernias after radical retropubic prostatectomy

PURPOSE

Inguinal hernias often occur after radical retropubic prostatectomy (RRP). We present a novel and simple technique for preventing inguinal hernias after RRP, which any surgeon can complete within a few minutes.

METHODS

A total of 230 Japanese prostate cancer patients underwent RRP between January 2007 and September 2011. From July 2009, 115 patients underwent inguinal hernia prevention procedures at the same time as RRP. In this procedure, we released approximately 5 cm of the bilateral vas deferens and spermatic vessels from the peritoneum. In cases in which the processus vaginalis had spread into the abdomen, we ligated it close to the peritoneal cavity and then transected it. The remaining 115 patients who underwent RRP but did not undergo the hernia prevention procedure were used as the control group. The incidence rate of postoperative inguinal hernia was compared between the 2 groups.

RESULTS

Inguinal hernias developed during the postoperative follow-up period in 18 of the 115 control patients (15.7%) (median duration, 50 months). The hernia-free survival rate of this group was 89.6% and 84.1% at 1 and 2 postoperative years, respectively. In contrast, only 1 of the 115 patients (0.87%) who underwent the hernia prevention procedure developed an inguinal hernia during the follow-up period (median duration, 27 months). The hernia-free survival rate of this group was 100% at both 1 and 2 postoperative years (P<0.0001).

CONCLUSIONS

We developed a simple method for preventing post-RRP inguinal hernias. The procedure is easy to perform and produces excellent outcomes.

Inguinal hernia developed after radical retropubic surgery for prostate cancer

PURPOSE

In this retrospective study, we aimed to compare the clinical characteristics of inguinal hernia developed after radical retropubic surgery for prostate cancer to the hernia without previous radical prostatectomy.

METHODS

Twenty-three patients (group A) who had radical retropubic surgery for prostate cancer underwent laparoscopic or open tension-free inguinal hernia repair from March 2007 to February 2011. Nine hundred and forty patients (group B) without previous radical retropubic surgery received laparoscopic or tension-free open hernia operation.

RESULTS

Group A was older than group B (mean ± standard deviation, 69.6 ± 7.2 vs. 54.1 ± 16.1; P < 0.001). Right side (73.9%) and indirect type (91.3%) in group A were more prevalent than in group B (51.5% and 69.4%, respectively) with statistic significance (P = 0.020 and P = 0.023). The rate of laparoscopic surgery in group B (n = 862, 91.7%) was higher than in group A (n = 14, 64.3%, P < 0.001). In comparing perioperative variables between the two groups, operative time (49.4 ± 23.5 minutes) and hospital stay (1.9 ± 0.7 days) in group A were longer than in group B (38.9 ± 16.9, 1.1 ± 0.2; P = 0.046 and P < 0.001, respectively) and pain score at 7 days in group A was higher than in group B (3.1 ± 0.7 vs. 2.3 ± 1.0, P < 0.001). Postoperative recurrence rate was not significantly different between the two groups.

CONCLUSION

Inguinal hernia following radical retropubic surgery for prostate cancer was predominantly right side and indirect type with statistic significance compared to hernias without previous radical prostatectomy.

Radical retropubic prostatectomy: a review of outcomes and side-effects

BACKGROUND

Radical prostatectomy (RP) is worldwide probably the most common procedure to treat localized prostate cancer (PC). Due to a more widespread use of Prostate-Specific Antigen (PSA) testing, patients operated today are often younger and have organ confined disease justifying a more preservative surgery. At the same time, surgical technique has improved resulting in lower risk of permanent side-effects. This paper aims to give an overview of results from modern surgery regarding cancer control and side-effects. A brief overview of the history is given.

MATERIAL AND METHODS

A literature research identified recently published papers focusing on outcome and side-effects after RP.

RESULTS

One large randomized study (SPCG-4) compared RP and watchful waiting (WW). The study showed that RP was superior to WW in preventing local progression (RR = 0.36), distant metastasis (RR = 0.65) and death from PC (RR = 0.65). Observational studies also show a better outcome for men treated with RP compared to WW. Peri-operative mortality after RP is low in most material around 0.1%. The risk of stricture of the vesico-urethral anastomosis has decreased with improved technique from historically 10-20% to a low incidence of around 2-9% today. Also the risk of incontinence has declined with improved technique. However, while the rates of severe incontinence is usually very low, as many as 30% still report light incontinence after long-term follow-up. Erectile dysfunction (ED) is still a frequent side-effect after RP. This risk is dependent on age, pre-operative sexual function, surgical technique and other risk factors for ED such as smoking, diabetes, etc. In selected subgroups the risk of ED is low. Inguinal hernia is a more recently described complication after open retropubic RP with a postoperative incidence of 15-20% within three years of surgery.

CONCLUSION

RP is an effective method to achieve cancer control in selected patients. With modern technique it is a safe procedure with a low risk of permanent side-effects except for ED.

Outcomes after concurrent inguinal hernia repair and robotic-assisted radical prostatectomy

Inguinal hernias occur more frequently following radical prostatectomy. Simultaneous inguinal hernia repair during open and laparoscopic radical prostatectomy for prostate cancer has been described previously. The emergence of robotic-assisted radical prostatectomy (RALP) has necessitated the evaluation of concomitant herniorrhaphy in this new setting. We report the outcomes of this operation in our series of patients. Retrospective review was performed on 700 patients with localised prostate cancer who underwent RALP performed by a single surgeon from 2004 to 2009. Details of cases where concurrent inguinal hernia repair was performed were recorded and compared with the remainder of the cohort. Hernia repair was performed using a monofilament knitted polypropylene cone mesh plug and fascial defect closure with Hem-o-Lok clips. A total of 38 inguinal herniorraphies were performed in 37 patients as a simultaneous procedure during transperitoneal RALP. The hernia repair on average added 5-10 min to the total procedure time. One patient underwent a bilateral repair. Across this group, mean age was 62.9 years, average body mass index was 27.1, and median follow-up was 29 months. There were no complications at the time of mesh placement. There were no cases complicated by wound infection, fluid collection, or chronic pain. Recurrence of an inguinal hernia occurred in one patient due to migration of the mesh. We conclude that concomitant inguinal hernia repair during RALP is safe, feasible, and effective. The herniorrhaphy can be performed quickly, adds little to the overall procedure time and avoids a further operative procedure for the patient.