Non-absorbable sutures are associated with lower recurrence rates in laparoscopic percutaneous inguinal hernia ligation

Comparing Outcomes of Single-Incision Laparoscopic Herniorrhaphy in Newborns and Infants

BACKGROUND

As surgical techniques progress, laparoscopic herniorrhaphy is now performed more often in premature babies. The aim of this study was to analyze the outcomes of newborns and infants who underwent single-incision laparoscopic herniorrhaphy (SILH) at our center.

METHODS

We retrospectively reviewed patients younger than 12 months old who received SILH at our department from 2016 to 2020. SILH involved a 5 mm 30-degree scope and 3 mm instruments with a 3-0 Silk purse-string intracorporeal suture for closure of the internal ring. At the time of surgery, Group 1 newborns, whose corrected age was 2 months and below, were compared to the Group 2 infants, whose age was above 2 months. We assessed the patients' characteristics, anesthesia, surgical data, and complications.

RESULTS

A total of 197 patients were included (114 newborns in Group 1 and 83 infants in Group 2). The mean age and body weight in Group 1 were 1.2 months and 3.8 kg, respectively, whereas in Group 2, they were 3.2 months and 6.7 kg, respectively. There were no significant differences in operative time (Group 1 = 34.1 min vs. Group 2 = 32.3 min, p = 0.26), anesthetic time (Group 1 = 80.0 min vs. Group 2 = 76.3 min, p = 0.07), length of hospitalization (Group 1 = 2.3 days vs. Group 2 = 2.4 days, p = 0.88), postoperative complications including omphalitis (Group 1 = 5.3% vs. Group 2 = 1.2%, p = 0.13), wound infection (Group 1 = 0.9% vs. Group 2 = 1.2%, p = 0.81), and hydrocele (Group 1 = 0.35% vs. Group 2 = 8.4%, p = 0.14). No recurrence, testicular ascent or atrophy, or mortality was observed in either group during the 2-year follow-up period.

CONCLUSIONS

Single-incision laparoscopic herniorrhaphy is a safe and effective operation for inguinal hernia repair in infants, even those with prematurity, lower body weight at the time of surgery, or cardiac and/or pulmonary comorbidities. Comparable results revealed no significant differences in perioperative complications despite younger ages and lower body weights.

Comparison of Two Laparoscopic Techniques in Management of Pediatric Inguinal Hernias

Introduction: Many studies focus on comparing outcomes of the open method for inguinal hernia repair (IHR) and the laparoscopic method. However, few studies compare different laparoscopic techniques. With over a dozen different techniques described in the literature for laparoscopic IHR, significant opportunities exist to study the efficacy of each technique. We investigated outcomes of a subcutaneous endoscopically assisted transfixion ligation (SEATL) technique and a percutaneous internal ring suturing (PIRS). Materials and Methods: After receiving institutional review board approval, we completed a retrospective chart review of IHR performed at our pediatric tertiary care center between September 2015 and May 2020. We included all patients under the age of 18 years. We separated laparoscopic repairs from total repairs. Laparoscopic repairs were further divided into their respective techniques. Factors involving patient demographics, operative details, and postoperative complications were statistically analyzed using SPSS. Results: There was a total of 131 IHRs performed with SEATL and 124 IHRs performed with PIRS. Median operative time (minutes) differed significantly (P = .001) with SEATL at 49 (28-66) and PIRS at 55 (37-76)] minutes. Significantly more incarcerated hernias were repaired with PIRS (n = 13) than with SEATL (n = 3, P = .006). SEATL had a higher number of postoperative complications; the most significant were granulomas (n = 3, P = .09) and recurrent hernias (n = 12, P < .001). Conclusion: SEATL had a significantly higher number of postoperative complications. This may be a result of multiple factors including but not limited to the absence of electrocautery, a shorter median operative time, and utilization of absorbable suture. Modifications have been made to this technique to reduce risk of postoperative complications.

Comparison of laparoscope-assisted single-needle laparoscopic percutaneous extraperitoneal closure versus open repair for pediatric inguinal hernia

Background

Laparoscopic-assisted repairs for pediatric inguinal hernia have gained gradual acceptance over the past decade. However, consensus about the optimal management is still lacking. The aim of this study is to compare outcomes of a modified laparoscope-assisted single-needle laparoscopic percutaneous extraperitoneal closure (LPEC) versus open repair of pediatric hernias/hydrocele in a single institution.

Materials and methods

We retrospectively reviewed the medical data of children who underwent laparoscope-assisted single-needle LPEC and open repair (OR) for inguinal hernia from 2014 to 2019. Data collection included demographics, laterality of hernia, surgical time and time to follow-up. We also reviewed and analyzed the evidence of recurrence, the incidence of metachronous contralateral inguinal hernia (MCIH), and other complications.

Results

In our cohort, 961 patients in the OR group and 1098 patients in the LPEC group were analyzed retrospectively. Mean operative time was significantly shorter in the LPEC group (22.3 ± 3.5 min) than in the OR group (27.8 ± 5.9 min) for bilateral hernia repair (p < 0.001). Postoperative recurrence was 1.3% (13/1035) in the OR group and 0.5% (6/1182) in the LPEC group (p = 0.056). Iatrogenic cryptorchidism occurred statistically more frequently in the OR group than in the LPEC group (0.4% vs. 0%, p = 0.013). In addition, the incidence of MCIH was 3.7% (33/887) in the OR group and 0.3% (3/1014) in the LPEC group (p < 0.01).

Conclusion

Comparing to open technique, laparoscope-assisted single-needle LPEC provides a simple and effective option for pediatric inguinal hernia/hydrocele repair with excellent outcomes, a low incidence of recurrence, and reduced MCIH.

Comparison study of three laparoscopic ligation procedures for pediatric inguinal hernia: a multicenter cohort of 5523 cases

PURPOSE

Single-site laparoscopic percutaneous extraperitoneal ligation (SLPEL) for pediatric inguinal hernia has gained popularity worldwide. However, complications associated with extraperitoneal knotting are not rare. This study evaluated the effectiveness of a modified SLPEL (M-SLPEL) to decrease adverse events associated with ligation knotting by comparing it with two other methods: classical SLPEL (C-SLPEL) and intracorporeal purse-string suturing (IPS).

METHODS

A multicenter retrospective comparative study was conducted among 5523 pediatric inguinal hernia patients. Cases were divided into three groups according to the surgical procedure: the M-SLPEL, C-SLPEL, and IPS groups. Data describing the clinical characteristics, operative time, and complications were collected.

RESULTS

All procedures were performed uneventfully. There were no significant differences in the age at operation (mean 2.62 ± 1.38 years). The operative time was shorter in the M-SLPEL group both for unilateral hernias (12.5 ± 1.8 min in C-SLPEL, 11.7 ± 1.3 min in M-SLPEL, and 17.6 ± 2.9 min in IPS) and for bilateral hernias (15.1 ± 2.1 min, 14.6 ± 1.7 min, and 23.9 ± 2.3 min, respectively). The overall incidence of adverse events in the inguinal region was 0% for M-SLPEL, 2.2% for C-SLPEL, and 0.5% for IPS. All patients were followed up for 12-93 months (mean 54 months). Recurrence occurred in 8 cases in the C-SLPEL group, 1 case in the M-SLPEL group, and 8 cases in the IPS group, with no significance between groups. No scrotal hematoma, testicular atrophy, or iatrogenic cryptorchidism occurred in any group.

CONCLUSION

The M-SLPEL procedure has time-consumption efficiency equivalent to that of C-SLPEL and even fewer adverse events in the inguinal region than IPS and C-SLPEL.

Laparoscopic iliopubic tract repair to treat recurrent pediatric inguinal hernia

BACKGROUND

Congenital defects, such as open processus vaginalis and the canal of Nuck, are common causes of primary pediatric inguinal hernia (PIH). However, in some patients, PIH occurs via acquired defects rather than congenital defects. The most representative cause of PIH is recurrent hernia. Recurrent PIH is treated with high ligation (HL), which is the same method that is used to treat primary PIH. However, the re-recurrence rate of recurrent PIH is high. This study aimed to compare laparoscopic iliopubic tract repair (IPTR) with laparoscopic HL for the treatment of recurrent PIH after primary PIH repair.

METHODS

From June 2013 to March 2019, 126 patients (< 10 years old) with recurrent PIH were retrospectively enrolled. Patients were divided into two groups according to the operative technique: laparoscopic HL (58 patients) and laparoscopic IPTR (68 patients). With HL, the hernial sac was removed and the peritoneum closed. With IPTR, iliopubic tract and transversalis fascia sutures were applied.

RESULTS

There were no cases of conversion to open surgery. Re-recurrence only occurred in the HL group; no patients in the IPTR group developed re-recurrence (8.6% [5/58] vs. 0.0% [0/68], respectively; p = 0.044). The mean duration from re-operation to re-recurrence in these five patients was 10.6 months. Other surgical outcomes and complications did not differ between the two groups.

CONCLUSIONS

Laparoscopic IPTR is an effective surgical treatment for reducing re-recurrence of recurrent PIH.

Long-term absorbable versus non-absorbable suture in laparoscopic percutaneous extraperitoneal closure of internal ring for inguinal hernia in children

AIM

To compare the results of using long-term absorbable (LTAS) versus non-absorbable suture (NAS) in laparoscopic percutaneous extraperitoneal closure of internal ring (LPEC) for indirect inguinal hernia (IH) in children METHODS: Prospectively collected data from children undergoing LPEC for IH at our center were retrospectively reviewed to compare group A repaired with NAS (2.0 monofilament polypropylene or braided polytetrafluoroethilene) to group B repaired with LTAS 2.0 polydioxanone.

RESULTS

481 patients with 499 IHs in group A were compared to 277 patients with 283 IHs in group B. There were no significant differences in terms of age, bodyweight and laterality of IH between the two groups. At a median follow up period of 30 months, the incidence of suture knot reaction (SKR) and hernia recurrence were 3.1% and 1.0% in group A vs. 0% and 6.4% in group B with p = 0.002 and p<0.001, respectively. Monofilament NAS was associated with a low rate of both recurrence and SKR.

CONCLUSIONS

LPEC repair for pediatric IH using LTAS is associated with no SKR but a higher recurrence rate compared to NAS. Monofilament NAS such as Prolene could be a good choice in LPEC because of its low rate of both recurrence and SKR.

Laparoscopic percutaneous extraperitoneal closure with peritoneum reinforcement repair for pediatric inguinal hernia: a single-center experience with over 2,000 patients

BACKGROUND

Inguinal hernia is one of the common diseases in infants and children that requires operative treatment. Laparoscopic inguinal hernia repair in children has become an alternative to the open procedure. Laparoscopic percutaneous extraperitoneal closure with peritoneum reinforcement (LPECPR) is a safe and effective approach for pediatric inguinal hernia, and has a lower recurrence. This is a retrospective study to present our experience with children who underwent LPECPR.

METHODS

A total of 2,018 patients with inguinal hernia who underwent LPECPR in our hospital from July, 2011 to December, 2020 were reviewed. The surgical technique is modified on the basis of laparoscopic percutaneous extraperitoneal closure (LPEC) to close extraperitoneally by circuit suturing twice around the internal inguinal ring.

RESULTS

All cases were completed LPECPR without conversion. There were no intraoperative complications. A total of 2,018 patients' laparoscopic procedures were achieved. The mean operative time was 14 and 20 min for unilateral and bilateral operations, respectively. Follow-up to date is 13.4 months (6-36 months), there were no postoperative complications, such as knot reactions, hydrocele formation, testicular atrophy or pain, except 3 recurrences (3/2,018, 0.15%).

CONCLUSIONS

This modified LPECPR technique can acquire lower recurrence rate for repair pediatric inguinal hernia. The midterm safety and efficacy of LPECPR are proven and it can be a routine procedure.

Comparison of Open Repair and Laparoscopic Percutaneous Internal Ring Suturing Method in Repairing Inguinal Hernia in Children

Introduction

An inguinal indirect hernia is one of the most frequent surgical conditions in children. In this study the experience with laparoscopic percutaneous internal ring suturing (PIRS) and open inguinal hernia surgery and their relations evaluated.

Methods

All children over 90 days of age and without having prior inguinal region surgery with a diagnosis of indirect inguinal hernia underwent surgical repair with open or laparoscopic PIRS technique. Patients' gender, age at surgery, inguinal hernias side, surgery duration, recurrence, complications, and follow-ups were collected.

Results

A total of 488 inguinal hernias of 405 patients were repaired. The diagnoses were unilateral inguinal hernia in 360 (88.9%) and it was bilateral in 33 (8.1%) patients. The operative technique was laparoscopic PIRS for 227 and open inguinal hernia surgery for 178 patients. In the PIRS group, a contralateral hernia was found in 48 of 205 children (23.4%). The surgery times were 23.3 (PIRS) and 33.7 (open) min for unilateral and 28 (PIRS) and 53.1 (open) min on average for bilateral inguinal hernia surgery. Mean follow-up was 30.4 months for PIRS and 24.4 months for open technique. Recurrence was observed in seven (3%) patients in PIRS and one (0.5%) in the open group and postoperative complications in three (1.3%) in PIRS and four (2.2%) in the open group.

Conclusion

PIRS method has the advantage to evaluate contralateral hernia at the same session, minimal scar related to surgery, and preserve the spermatic cord from manipulation. PIRS is an alternative feasible method and easy to perform to repair the inguinal hernia with/without communicating hydrocele in children.

Pediatric inguinal hernia treated by single-port laparoscopic water injection hernia crochet needle. Wideochir Inne Tech Maloinwazyjne. 2020;15:239-244. [PMID: 32117511 PMCID: PMC7020726 DOI: 10.5114/wiitm.2019.86799]

Introduction

Inguinal hernia is the most common disease in pediatric surgery and is induced by congenital processus vaginalis patency. Almost all inguinal hernias are inguinal indirect hernias, and herniorrhaphy has accounted for about 15% of all pediatric operations. In the past 20 years, with the development of minimally invasive technology, laparoscopic inguinal herniorrhaphy has been emerging in China and in other countries.

Aim

To introduce a new technique for treating inguinal hernia in children, and evaluate the feasibility and surgical efficacy of a transumbilical single-port laparoscopic water-injection hernia crochet needle in treating pediatric inguinal hernia.

Material and methods

Clinical data of 136 inguinal hernial children treated using a transumbilical single-port laparoscopic water-injection hernia crochet needle in our hospital from June 2017 to December 2018 were retrospectively analyzed.

Results

All procedures were successfully accomplished, and no case was converted to a different procedure; the average operation time was 16 min for one side and 35 min for both sides. Patients were followed for an average of 10 months after surgery. One patient had a line-knot reaction at the inguinal puncture point 3 months after surgery and recovered after conservative treatment, and no recurrent case was observed after surgery.

Conclusions

It is feasible to treat pediatric inguinal hernia through a transumbilical single-port laparoscopic water-injection hernia crochet needle, which is associated with safety, less trauma, rapid recovery, no obvious scar, and satisfactory efficacy. Therefore, it is worthy of being promoted and applied in clinical practice.

Effectiveness of Laparoscopy in the Treatment of Pediatric Hydrocele: A Systematic Review

Objective: To conduct a systematic review of the published studies concerning laparoscopic pediatric hydrocele (PH) repair and summarize the surgical details and operative outcomes of this procedure. Materials and Methods: A PubMed search was performed for all studies concerning laparoscopic repair of hydrocele in children. The search strategy was as follows: (laparoscop* OR coelioscop* OR peritoneoscop* OR laparoendoscop* OR minilaparoscop*) AND hydrocele* AND (child* OR pediatric*). Inclusion criteria included (1) children with hydrocele as the study participant; (2) laparoscopic PH repair as the main surgical procedure; and (3) operation time and complications as the outcomes of interest. Reviews, studies with insufficient information or reporting the outcomes of abdominoscrotal hydrocele, and duplicate patient series were excluded. Results: Overall, 20 studies fulfilled the inclusion criteria of this review and 15 studies were included in the final analysis. These studies comprised at least 2920 patients undergoing laparoscopic repair for various PH subtypes, of which most were conducted in Asia. Most authors repaired PH laparoscopically through an extraperitoneal approach, while only a few studies applied a laparoscopic intraperitoneal method. The majority of the studies used nonabsorbable sutures to ligate hydrocele sac, while very few studies used absorbable materials. Hydrocele sac was resected or transected in only five studies, but left alone in the majority. Mean operation time was between 15.6 and 43.2 minutes for unilateral laparoscopic PH repair and between 16.9 and 53.2 minutes for bilateral surgery. Operative complications were not very common, with a highest recurrence/persistence incidence of 1.4%. Subgroup analysis showed that hydrocele subtype, surgical approach, suture material, and management of hydrocele sac did not significantly influence the operative complications. Conclusions: laparoscopic PH repair seems to be a safe and effective procedure. Given the limitations of this review, our conclusion needs to be confirmed by more well-designed studies.

Evidence supporting laparoscopic hernia repair in children

PURPOSE OF REVIEW

Pediatric inguinal hernias are a commonly performed surgical procedure. Currently, they can be approached via open or laparoscopic surgery. We summarize the current evidence for laparoscopic inguinal hernia repairs in children.

RECENT FINDINGS

Laparoscopic and open inguinal hernia repair in children are associated with similar operative times for unilateral hernia, as well as similar cosmesis, complication rates and recurrence rates. Bilateral hernia repair has been shown to be faster through a laparoscopic approach. The laparoscopic approach is associated with decreased pain scores and earlier recovery, although only in the initial postoperative period. Laparoscopy allows for easy evaluation of the patency of contralateral processus vaginalis, although the clinical significance of and need for repair of an identified defect is unclear.

SUMMARY

Laparoscopic surgery for pediatric inguinal hernias offers some advantages over open repair with most outcomes being equal. It should be considered a safe alternative to open repair to children and their caregivers.

Single-Site Laparoscopy and Robotic Surgery in Pediatric Urology

PURPOSE OF REVIEW

In this review, we summarize research that has evaluated the role of laparoendoscopic single-site (LESS) and robotic surgery in pediatric urology, highlighting new and/or controversial ideas.

RECENT FINDINGS

The newest research developments over the last several years are studies that address generalizability of these techniques, ideal patient factors, extrapolation to more complex surgeries, and comparative studies to more traditional techniques to define the associated costs and benefits, as well as patient-centered outcomes. Specifically in the field of LESS, addressing the limitations of suboptimal vision, instrument crowding, and loss of triangulation have been a focus. The literature is now replete with new applications for robotic surgery as well as descriptions of the specific technical challenges inherent to pediatrics. Robotic surgery and LESS are areas of growth in pediatric urology that allow continual innovation and expansion of technology within a surgeon's armamentarium.

Single-center, retrospective study of the outcome of laparoscopic inguinal herniorrhaphy in children

Laparoscopic hernia repairs are used increasingly in children.The purpose of this single-center cohort observational research study was to analyze the outcome of children treated surgically for unilateral or bilateral inguinal hernia using laparoscopy.We did a STROBE-compliant retrospective outcome analysis of pediatric, laparoscopic hernia repair. Consecutive laparoscopic herniorrhaphies in 123 children done between March 2, 2010, and March 1, 2014, were included in this analysis. Data analysis was based on reviewing the hospital records and a prospective questionnaire. We evaluated postoperative hernia recurrence rate, occurrence of postoperative complications, duration of postoperative pain medication, and wound cosmesis.We first performed laparoscopic inguinal herniorrhaphy according to the techniques described by Schier et al and Becmeur et al in March 2010. We treated 46 girls and 77 boys with laparoscopically confirmed inguinal hernias, and their ages ranged from 0 to 16 years. Of these, 77 children suffered from unilateral hernias, 30 from unilateral hernias with contralateral patency of the vaginal process, and 16 from indirect bilateral hernias. The median follow-up interval was 38 months (range: 13-58 months). Overall, 8 (6.5%) of these 123 patients experienced a recurrence of the inguinal hernia. Two patients (1.6%) suffered a postoperative infection. Postoperative pain medication was administered by parents for 1 to 3 days in 67 (63.8%) of the 105 families who answered the question, and no pain medication was administered by 5 (4.0%) parents. Wound cosmesis was rated by the parents as invisible or barely visible in 106 (86.2%) of 123 patients and esthetically disturbing in 4 (3.2%) children.Laparoscopic inguinal hernia repair carries a learning curve and is safe and efficient in children thereafter. Further prospective studies are required to evaluate the long-term outcome of laparoscopic inguinal hernia repair in children.

Laparoscopic intra-abdominal patent processus vaginalis ligation in pediatric urology practice

INTRODUCTION AND OBJECTIVE

Inguinal hernias and communicating hydroceles from a patent processus vaginalis (PPV) are common problems in children. This study provides a detailed description of the laparoscopic intra-abdominal patent processus vaginalis ligation (LIPPL) procedure along with its results in pediatric urology patients.

METHODS

Prospectively collected data were captured from children (<18 years) who underwent LIPPL from 2012 to 2014. Demographics as well as postoperative characteristics were reviewed and descriptively analyzed. LIPPL is performed using a 5-mm camera through the umbilicus. A loop of polypropylene suture is passed through a spinal needle percutaneously on one side of the internal ring. The needle is reinserted on the opposite side and the tail of the suture is fed through the original loop such that a purse-string is created around the peritoneum of the internal ring above the spermatic vessels and the vas; the suture is tied extracorporeally.

RESULTS

142 patients (3 female) were evaluated with 197 PPV sites repaired using LIPPL at median 24 (1-216) months of age. Median operating time was 35 (20-91) and 43 (27-85) minutes for unilateral and bilateral repairs, respectively. There were no intraoperative complications. During the 14 (1-34) months from surgery, there were no hernia recurrences, one surgical site infection, seven patients with residual small non-communicating hydroceles, and one patient who developed a suture granuloma.

CONCLUSIONS

LIPPL is a safe and effective technique with minimal rate of hernia recurrence and few complications. LIPPL allows for easy repair of all sizes of PPV, with patients receiving the benefits of minimally invasive surgery including the ability to evaluate the contralateral inguinal ring.

Choice of Repairing Inguinal Hernia in Children: Open Versus Laparoscopy

Inguinal hernia is a common disorder of childhood that requires surgical repair at diagnosis. Traditionally, it is operated upon by open inguinal incision. However, with the introduction of laparoscopic repair in 1990, opinion of scientific community is divided concerning the best method of pediatric herniotomy. Educated parents, who long to have the choicest of the best, often gather information from internet and prefer to discuss their concerns with primary care physicians. This descriptive review is intended to provide practicing pediatricians with updated evidence-based information which will enable them to counsel parents regarding the choice of hernia repair. Based on careful analysis of current literature, unacceptable standards are defined in this paper and rationalized recommendations are proposed. Laparoscopy appears to be beneficial in bilateral hernia of girls, giant hernia, recurrence following failed open repair and in hernia associated with undescended testis or ambiguous genitalia. On the other hand, open herniotomy appears to be advantageous in male inguinal hernia, unilateral female hernia, premature newborns, failed laparoscopic repair and in hernia associated with serious co-morbidity.

A systematic review and meta-analysis concerning single-site laparoscopic percutaneous extraperitoneal closure for pediatric inguinal hernia and hydrocele

BACKGROUND

Single-site laparoscopic percutaneous extraperitoneal closure (SLPEC) of hernia sac/processus vaginalis has been widely performed for repair of inguinal hernia/hydrocele in children. However, a variety of surgical instruments and techniques were used, and significant differences existed among the SLPEC reports.

METHODS

A literature search was performed for all available studies concerning SLPEC for pediatric inguinal hernia/hydrocele in PubMed, Embase and Cochrane library. The surgical details and operative outcomes were pooled and analyzed with software StataSE 12.0.

RESULTS

49 studies fulfilled the predefined inclusion criteria of this review and 37 studies were finally included in the meta-analysis. The mean incidence of CPPV was 29.1% (range 5.73-43.0%). The average of mean operative time was 19.56 min (range 8.30-41.19 min) for unilateral SLPEC and 27.23 min (range 12.80-48.19 min) for bilateral SLPEC. The total incidence of injury, conversion, recurrence, hydrocele formation, knot reaction, severe pain, and scrotal swelling was 0.32% (range 0-3.24%), 0.05% (range 0-0.89%), 0.70% (range 0-15.5%), 0.23% (range 0-3.57%), 0.33% (range 0-3.33%), 0.05% (range 0-4.55%), and 0.03% (range 0-1.52%), respectively. There was no development of testicular atrophy. Subgroup analyses showed an inverse correlation between the injury incidence and adoption of assisted forceps, hydrodissection, and blunt puncture device, between the conversion rate and adoption of hydrodissection, between the recurrence/hydrocele incidence and adoption of assisted forceps, hydrodissection, nonabsorbable suture and the preventive measures to avoid ligating the unnecessary subcutaneous tissues, and between the rate of knot reaction and adoption of assisted forceps, hydrodissection, and the preventive measures.

CONCLUSIONS

SLPEC was a well-developed procedure for repair of pediatric inguinal hernia/hydrocele. Adoption of assisted forceps, hydrodissection, nonabsorbable suture, and the preventive measures to avoid ligating the unnecessary subcutaneous tissues could significantly reduce the intra- and postoperative complications.

The International Pediatric Endosurgery Group Evidence-Based Guideline on Minimal Access Approaches to the Operative Management of Inguinal Hernia in Children

Introduction: Minimally invasive surgery (MIS) for inguinal hernia repair (IHR) in children has been reported for more than two decades. The International Pediatric Endosurgery Group (IPEG) Evidence-Based Review Committee chose MIS IHR as the inaugural topic for review and presentation at the 2016 IPEG annual meeting. Materials and Methods: English language articles published between January 1, 2009, and December 31, 2015, were reviewed and included in this evidence-based review after searching PubMed, Cochrane Reviews, ClinicalTrials.gov, Google Scholar, and EMBASE. Results: Level 1a and 1b evidence supports the recommendations that operative time for bilateral IHRs should be considered shorter and postoperative complications rates should be considered lower in MIS repair over open. Recurrence rates are similar between the two methods (level 1a and 1b evidence). No level 1 evidence exists to support one MIS technique over another or that operating on a detected contralateral patent processus vaginalis during laparoscopy makes any difference in long-term outcome to the patient. Conclusions: The advantages of lower postoperative complications and shorter operative times have been found in studies of surgeons experienced in MIS repair and differences were small. The evidence in this review supports that MIS repair is a safe, effective method of IHR with proper training and mentorship.

Learning Curves for Laparoscopic Repair of Inguinal Hernia and Communicating Hydrocele in Children

INTRODUCTION

We analyzed the department and surgeon learning curves during implementation of the percutaneous internal ring suturing (PIRS) technique in our department.

METHODS

Children proposed for inguinal hernia or communicating hydrocele repair were included (n = 607). After mentorship, all surgeons were free to propose open or PIRS repair. From gathered data, we assessed department and surgeon learning curves through cumulative experience focusing in perioperative complications, conversion, ipsilateral recurrence, postoperative complications, and metachronous hernia, with benchmarks defined by open repair.

RESULTS

Department-centered analysis revealed that perioperative complications, conversion, and ipsilateral recurrence rates were higher in the beginning, reaching the benchmarks when each surgeon performed, at least, 35 laparoscopic repairs. Postoperative complications and metachronous hernia rates were independent from learning curves, with the metachronous hernia rate being significantly lower in PIRS patients. During the program, the percentage of males in those operated by PIRS progressively increased reaching the percentage of males, in our sample, when department operated over 230 cases.

CONCLUSION

Thirty-five laparoscopic cases per surgeon are required for perioperative complications, conversion, and ipsilateral recurrence reach the benchmark. The gap between the percentage of males, in those operated by PIRS and in those proposed for surgery, monitors the confidence of the team in the program.

Percutaneous internal ring suturing is a safe and effective method for the minimal invasive treatment of pediatric inguinal hernia: Experience with 250 cases

BACKGROUND/PURPOSE

Percutaneous internal ring suturing (PIRS) is a minimally invasive method for repair of pediatric inguinal hernia. In this study we report our experience with PIRS.

METHODS

All children >10kg presenting to our institute between June 2013 and March 2015 with a diagnosis of indirect inguinal hernia or communicating hydrocele underwent laparoscopic repair using PIRS technique. Patients' gender, age at surgery, side of inguinal hernia/communicating hydrocele at diagnosis, peroperative findings, surgical and anesthesia times plus follow-up findings were collected.

RESULTS

Two-hundred thirteen patients underwent 250 procedures. Inguinal hernia or communicating hydrocele was diagnosed on the right side in 113 (53.1%), the left side in 75 (35.2%) and bilaterally in 25 patients (11.7%). Contralateral hernia was found in 35 patients (16.4%). Mean surgery time was 14.3min for unilateral and 20.4min for bilateral PIRS, and mean anesthesia time was 33.6min for unilateral and 39.1min for bilateral PIRS. Average follow-up time was 9.6months. Recurrence was seen in 3 (1.4%) and complications in 6 patients (2.8%).

CONCLUSION

PIRS is a simple, safe and effective method for the treatment of inguinal hernia and communicating hydrocele in children.