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1.
Sujith Wijerathne Narendra Agarwal Ahmad Ramzi Dino H. Liem Wee B. Tan Davide Lomanto 《Surgical endoscopy》2016,30(4):1356-1363
Background
The advantage of single-port total extra-peritoneal (TEP) inguinal hernia repair over the conventional technique is still debatable. Our objective was to compare the outcomes of TEP inguinal hernia repair using either a single-port or conventional surgical technique, in two blind randomized groups of patients.Methods
In this prospective, randomized, double-blind, controlled clinical trial, 100 patients undergoing surgery for unilateral inguinal hernia were randomized into two groups: One group underwent conventional laparoscopic TEP inguinal hernia repair, while the other was selected for single-port TEP repair. Primary endpoint is postoperative pain (VAS), while secondary endpoints are recurrence, chronic pain and complications.Results
From 100 patients, 49 underwent single-port hernia TEP repair, 50 had conventional three-port TEP hernia repair, and one patient declined to participate after randomization. The two groups were comparable in terms of patient demographics and operative findings. Mean operative time was 49.1(±13.8) min in the conventional group and 54.1(±14.4) min in the single-port group (p = 0.08). Mean hospital stay was 19.7(±5.8) h in the conventional group and 20.5(±6.4) h in the single-port group (p = 0.489). No major complications and no recurrence reported at 11-month follow-up. No statistically significant difference noted in postoperative pain between the two groups at regular intervals.Conclusions
The outcomes after laparoscopic TEP inguinal hernia repair with a single-port device are similar but not superior to the conventional technique.2.
Background
Whether total extraperitoneal inguinal hernia repair (TEP) is associated with worse outcomes compared to transabdominal preperitoneal inguinal hernia repair (TAPP) for the treatment of recurrent inguinal hernia continues to be a matter of debate. The objective of this large cohort study is to compare complications, conversion rates and postoperative length of hospital stay between patients undergoing TEP or TAPP for unilateral recurrent inguinal hernia repair.Method
Based on prospective data of the Swiss Association of Laparoscopic and Thoracoscopic Surgery, all patients who underwent elective TEP or TAPP for unilateral recurrent inguinal hernia between 1995 and 2006 were included. The following outcomes were compared: conversion rates, intraoperative complications, surgical postoperative complications and duration of operation.Results
Data on 1309 patients undergoing TEP (n = 1022) and TAPP (n = 287) for recurrent inguinal hernia were prospectively collected. Average age, BMI and ASA score were similar in both groups. Patients undergoing TEP had a significantly increased rate of intraoperative complications (TEP 6.3 % vs. TAPP 2.8 %, p = 0.0225). Duration of operation was longer for patients undergoing TEP (TEP 80.3 vs. TAPP 73.0 min, p < 0.0023) while postoperative length of hospital stay was longer for patients undergoing TAPP (TEP 2.6 vs. TAPP 3.1 day, p = 0.0145). Surgical postoperative complications (TEP 3.52 % vs. TAPP 2.09 %, p = 0.2239), general postoperative complications (TEP 1.47 % vs. TAPP 0.7 %, p = 0.3081) and conversion rates (TEP 2.15 % vs. TAPP 1.39 %, p = 0.4155) were not significantly different.Conclusion
This study is the first population-based analysis comparing outcomes of patients with recurrent inguinal hernia undergoing TEP versus TAPP in a prospective cohort of over 1300 patients. Intraoperative complications were significantly higher in patients undergoing TEP. The TEP technique was associated with longer operating times, but a shorter postoperative length of hospital stay. Nonetheless, the absolute outcome differences are small and thus, on a population-based level, both techniques appear to be safe and effective for patients undergoing endoscopic repair for unilateral recurrent inguinal hernia.3.
Purpose
To evaluate the efficacy and safety of laparoscopic transabdominal preperitoneal (TAPP) inguinal hernia repair in patients who have undergone robot-assisted laparoscopic radical prostatectomy (RALP).Methods
From July 2014 to December 2016, TAPP inguinal hernia repair was conducted in 40 consecutive patients who had previously undergone RALP. Their data were retrospectively analyzed as an uncontrolled case series.Results
The mean operation time in patients who had previously undergone RALP was 99.5 ± 38.0 min. The intraoperative blood loss volume was small, and the duration of hospitalization was 2.0 ± 0.5 days. No intraoperative complications or major postoperative complications occurred. During the average 11.2-month follow-up period, no patients who had previously undergone prostatectomy developed recurrence.Conclusions
Laparoscopic TAPP inguinal hernia repair after RALP was safe and effective. TAPP inguinal hernia repair may be a valuable alternative to open hernioplasty.4.
Purpose
To evaluate the feasibility, safety, and long-term outcomes of laparoscopic two-port totally extraperitoneal (TEP) inguinal hernia repair.Methods
A 10-year retrospective analysis from 2004 to 2013 of patients undergoing two-port TEP performed by a single surgeon at three surgical centers.Results
336 consecutive patients underwent two-port TEP repairing 478 hernias. 315 (93.8 %) patients were male and 21 (6.2 %) were female. Mean age ± SD was 47 ± 14 years and mean body mass index ± SD was 28.0 ± 4.7 kg/m2. Indications for surgery included primary repair 303 (90.2 %), recurrence from open repair 28 (8.3 %), and incarcerated inguinal hernia 5 (1.5 %). 194 (57.7 %) cases were unilateral and 142 (42.3 %) were bilateral. Operative time ± SD was 38.7 ± 14.9 min for unilateral repair and 43.4 ± 17.6 min for bilateral repair. Two-port TEP was successful in 316 (94.0 %). 20 (6.0 %) cases required the addition of a third port. 2 (0.6 %) cases were converted to open repair. Mean follow-up time ± SD was 5.4 ± 2.7 years. Postoperative complications included urinary retention 5 (1.5 %), seroma 7 (2.1 %), hematoma 1 (0.3 %), surgical site infection 4 (1.2 %), and chronic inguinal pain 3 (0.9 %). 11 (2.3 %) hernias recurred.Conclusion
Two-port TEP appears to be a feasible, safe, and effective method for laparoscopic inguinal hernia repair and should be considered a viable, less invasive alternative to conventional three-port techniques.5.
Purpose
Laparoendoscopic single site totally extraperitoneal (TEP) hernia repair showed to be a feasible alternative to conventional laparoscopic hernia repair; nevertheless single site surgery, with the loss of instruments triangulation can be a demanding procedure. To overcome those hurdles, the Single Site® (SS) platform of the da Vinci (DV) Si robotic system enables to perform surgical procedures through a 25-mm skin incision, with a stable 3D vision and restoring an adequate triangulation of the surgical instruments. We present in details the technique and the preliminary results of DV-SS TEP, to our knowledge the first cases reported in literature.Methods
In March 2016, three consecutive male patients (mean age 46.6 years–mean BMI 25.3) with bilateral symptomatic inguinal hernia were submitted to DV-SS TEP in our institutions. Feasibility, codification of the technique, operative time and perioperative outcomes were recorded.Results
All the procedures were completed as scheduled, with no conversion to other techniques. Mean operative time was 98.6 min, ranging between 155 and 55 min, reflecting the learning curve of the operating room team on this new procedure. No intraoperative or postoperative complications were experienced and all the patients were discharged within 24 h after surgery. Patients reported satisfactory postoperative course, with no recurrence of inguinal hernia and satisfaction in cosmetic result at 6-month follow-up.Conclusions
DV-SS TEP inguinal hernia repair showed to be feasible and effective surgical option for bilateral groin hernia repair. Patients’ outcome was uneventful, with optimal cosmetic results. Further studies comparing this innovative technique to TEP or LESS TEP should be promoted.6.
Purpose
To investigate which type of hernia that has the highest risk of a recurrence after a primary Lichtenstein repair.Methods
Male patients operated on with a Lichtenstein repair for a primary direct or indirect inguinal hernia and with a TEP for a later recurrence, with both operations recorded in the Swedish Hernia Register (SHR), were included in the study. The study period was 1994–2014.Results
Under the study period, 130,037 male patients with a primary indirect or direct inguinal hernia were operated on with a Lichtenstein repair. A second operation in the SHR was registered in 2236 of these patients (reoperation rate 1.7 %). TEP was the chosen operation in 737 in this latter cohort. The most likely location for a recurrence was the same as the primary location. If the recurrences change location from the primary place, we recognized that direct hernias had a RR of 1.51 to having a recurrent indirect hernia compared to having a direct recurrence after an indirect primary hernia repair.Conclusions
Recurrent hernias after Lichtenstein are more common on the same location as the primary one, compared to changing the location.7.
Background
Laparoscopic total extraperitoneal repair (TEP) of inguinal hernia has been associated with higher rates of recurrence compared to open methods. The aim of the present study was to determine independent risk factors for recurrence within 2 years after TEP.Methods
This was a single-centre prospective cohort study with consecutive inclusion of patients undergoing inguinal hernia repair from 2010 to 2014. Systematic follow-up was conducted 6 months and 2 years postoperatively. Risk factors for recurrence after 2 years were analysed in univariate and multivariate analyses.Results
A total of 1194 patients underwent TEP for inguinal or femoral hernia in the study period, of which 1047 were eligible for analyses. After 2 years, 56 (5.3%) patients had presented with recurrence. The following factors were associated with recurrence in univariate analyses: body mass index (BMI) >30 (HR 3.64; p = 0.011), medial vs. lateral hernia (HR 2.37; p = 0.004), repair of recurrent hernia vs. primary repair (HR 2.12; p = 0.049), and length of stay >1 day (HR 1.77; p = 0.043). In multivariate analyses, factors independently associated with recurrence after 2 years were BMI >30 (HR 3.74; p = 0.026) and medial vs. lateral hernia (HR 2.39; p = 0.004).Conclusion
The recurrence rate after TEP is higher than reported after open hernia repair. Attempts to decrease the rate should be persuaded. Good surgical technique with precise dissection and correct placement of the mesh, especially in medial hernias and obese patients, may be key points to improve outcomes after TEP.8.
Background
Total extraperitoneal (TEP) hernia repair has been shown to offer less pain, shorter postoperative hospital stay and earlier return to work when compared to open surgery. Our institution routinely performs TEP procedures for patients with primary or recurrent inguinal hernias. The aim of this study was to show that supervised senior residents can safely perform TEP repairs in a teaching setting.Methods
All consecutive patients treated for inguinal hernias by laparoscopic approach from October 2008 to June 2012 were retrospectively analyzed from a prospective database.Results
A total of 219 TEP repairs were performed on 171 patients: 123 unilateral and 48 bilateral. The mean patient age was 51.6 years with a standard deviation (SD) of ± 15.9. Supervised senior residents performed 171 (78 %) and staff surgeons 48 (22 %) TEP repairs, respectively. Thirty-day morbidity included cases of inguinal paresthesias (0.4 %, n = 1), umbilical hematomas (0.9 %, n = 2), superficial wound infections (0.9 %, n = 2), scrotal hematomas (2.7 %, n = 6), postoperative urinary retentions (2.7 %, n = 6), chronic pain syndromes (5 %, n = 11) and postoperative seromas (6.7 %, n = 14). Overall, complication rates were 18.7 % for staff surgeons and 19.3 % for residents (p = 0.83). For staff surgeons and residents, mean operative times for unilateral hernia repairs were 65 min (SD ± 18.9) and 77.6 min (SD ± 29.8) (p = 0.043), respectively, while mean operative times for bilateral repairs were 115 min (SD ± 40.1) and 103.6 (SD ± 25.9) (p = 0.05).Conclusions
TEP repair is a safe procedure when performed by supervised senior surgical trainees. Teaching of TEP should be routinely included in general surgery residency programs.9.
Background
Single-port laparoscopic surgery (SPLS) has been introduced for totally extraperitoneal (TEP) inguinal hernia repair. Clinically, however, the benefits of single-port TEP (SP TEP) are unclear. This study aimed to compare short-term surgical outcomes between SP TEP and conventional laparoscopic TEP(CL TEP) inguinal hernia repair.Methods
Between January 2013 and February 2015, 99 men with primary unilateral inguinal hernia were randomized to the single-port or conventional 3-port TEP procedures. The primary end point was postoperative pain. Secondary end points were complications, postoperative hospital stay, days to return to daily normal activities, cosmesis, and quality of life (QOL).Results
We randomized 50 patients to SP TEP and 49 to CL TEP repair. The SP TEP group patients had significantly lower pain scores (visual analog scale) 7 days postoperation (p = 0.017). However, there were no significant differences between the two groups in postoperative pain scores 24 h (p = 0.44) and 4 weeks (p = 0.677) after operation and analgesic requirements on the operation day (p = 0.303) and 7 days after the operation (p = 0.204). Operation time, postoperative hospital stay, and complications were comparable between the two groups. The days to return to daily normal activities, QOL, and cosmetic satisfaction were not different between the two groups.Conclusion
The outcomes of SP TEP hernia repair for operation time and morbidities were comparable to CL TEP, and postoperative pain was lower at 7 days than in CL TEP hernia repair. The SP TEP technique can be recommended as an alternative treatment for inguinal hernia repair in experienced hands.10.
Introduction
The guidelines of the international hernia societies recommend laparo-endoscopic inguinal hernia repair for recurrent hernias after open primary repair. To date, no randomized trials have been conducted to compare the TEP vs TAPP outcome for recurrent inguinal hernia repair. A Swiss registry study identified only minor differences between the two techniques, thus suggesting the equivalence of the two procedures.Materials and Methods
Between September 1, 2009 and August 31, 2013 data were entered into the Herniamed Registry on a total of 2246 patients with recurrent inguinal hernia repair following previous open primary operation in either TAPP (n?=?1,464) or TEP technique (n?=?782).Results
Univariable and multivariable analysis did not find any significant difference between TEP and TAPP with regard to the intraoperative complications, complication-related reoperations, re-recurrences, pain at rest, pain on exertion, or chronic pain requiring treatment. The only difference identified was a significantly higher postoperative seroma rate after TAPP, which was influenced by the surgical technique, previous open primary operation and EHS-classification medial and responded to conservative treatment.Conclusion
TEP and TAPP are equivalent surgical techniques for recurrent inguinal hernia repair following previous open primary operation. The choice of technique should be tailored to the surgeon’s expertise.11.
Purpose
This study compared the long-term recurrence rates of laparoscopic totally extraperitoneal (TEP) and open inguinal hernia repair in patients from a randomised trial completed in 1994. Laparoscopic inguinal hernia surgery, especially TEP repair, has gained widespread acceptance in recent years. There is still paucity of data on long-term follow-up comparing recurrence rates for open and laparoscopic techniques. This is the first study providing direct long-term comparative data about these techniques.Methods
A randomised controlled trial was conducted between 1992 and 1994 on patients undergoing a laparoscopic TEP or an open inguinal hernia (Shouldice) repair at our institution. Of the original 104 participants, contemporary follow-up data could be obtained for 98 patients with regards to long-term recurrence. These data were collected with the help of questionnaires, telephone calls and retrieval of case records. Medical records were reviewed for all patients. Data were analysed using a Cox proportional hazards model.Results
There were 7/72 (9.7%) recurrences in the open group and 9/35 (25.7%) recurrences in the laparoscopic group. This difference in recurrence rates was statistically significant (HR = 2.94; 95% CI 1.05–8.25; p = 0.041.)Conclusion
Laparoscopic TEP inguinal hernia repair performed in 1992–1994 had a higher recurrence rate than open Shouldice inguinal hernia repair during the same period. The original study was undertaken in the inceptive days of laparoscopic surgery and results need to be interpreted considering the technology and expertise available at that time.12.
Purpose
Total extraperitoneal preperitoneal (TEP) repair is widely used for inguinal, femoral, or obturator hernia treatment. However, mesh repair is not often used for strangulated hernia treatment if intestinal resection is required because of the risk of postoperative mesh infection. Complete mesh repair is required for hernia treatment to prevent postoperative recurrence, particularly in patients with femoral or obturator hernia.Cases
We treated four patients with inguinocrural and obturator hernias (a 72-year-old male with a right indirect inguinal hernia; an 83-year-old female with a right obturator hernia; and 86- and 82-year-old females with femoral hernias) via a two-stage laparoscopic surgery. All patients were diagnosed with intestinal obstruction due to strangulated hernia. First, the incarcerated small intestine was released and then laparoscopically resected. Further, 8–24 days after the first surgery, bilateral TEP repairs were performed in all patients; the postoperative course was uneventful in all patients, and they were discharged 5–10 days after TEP repair. At present, no hernia recurrence has been reported in any patient.Conclusion
The two-stage laparoscopic treatment is safe for treatment of strangulated inguinal, femoral, and obturator hernias, and complete mesh repair via the TEP method can be performed in elderly patients to minimize the occurrence of mesh infection.13.
J. K. M. Fan J. Liu K. Chen X. Yang X. Xu H. K. Choi F. S. Y. Chan K. W. H. Chiu C. M. Lo 《Hernia》2018,22(3):455-465
Objectives
Seroma is a virtually unavoidable early sequela after TEP hernioplasty. This randomised controlled trial evaluated the outcomes of preperitoneal closed-system suction drainage in laparoscopic totally extraperitoneal (TEP) hernioplasty for inguinal hernia.Methods
Ninety patients aged 18–80 years who presented to our hospital between May 2016 and February 2017 with primary unilateral inguinal hernia were randomised into the preperitoneal drain and no-drain groups. The primary outcome was seroma size on postoperative day 6. Secondary outcomes included clinical seroma formation and seroma size on day 1, day 6, 1 and 7 months postoperatively, length of postoperative stay, pain score, and recurrence.Results
There was no significant difference in age, sex, co-morbidities, hernia side, mean hernia size, operating time, fixation adjuncts, or postoperative stay. The overall incidence of clinical seroma formation was 25.6% on postoperative day 1, 60.3% on postoperative day 6, 13.2% 1 month and 0% 7 months postoperatively. The mean drain output was 57.9 ml. The drain group had significantly fewer patients with seroma on day 1 (6 vs 14, p = 0.022) and day 6 (17 vs 30, p = 0.000), and a smaller mean seroma size on days 1 and 6 (p = 0.000). Subgroup analysis showed that sac ligation versus reduction, peritoneal perforation, and fixation adjuncts had no significant effects on seroma formation or size. There is a trend of lower early post-operation VAS score and more urinary retention in drain group was observed but not reaching statistical significance. No differences in postoperative pain score or complications were observed at 1 and 7 months’ post operation.Conclusions
Preperitoneal drainage for 23 h after laparoscopic TEP hernioplasty for inguinal hernia can effectively decrease seroma formation in the early postoperative period, and potentially improving postoperative pain. The benefit is short-term and no significant difference was demonstrated after 1-month post operations. This tradition technique applied to novel operative repair of inguinal hernia is safe and feasible with no significant morbidity demonstrated. Preperitoneal drainage after TEP can be considered as an option to improve patient satisfactions and recovery in selected patient group for maximal benefit, especially for those with prolonged operation which may associate with higher chance of seroma formation.14.
Purpose
To compare the feasibilities and efficacies of the total extraperitoneal (TEP) technique and laparotomy for incarcerated obturator hernia repair.Methods
All study subjects were diagnosed with incarcerated obturator hernia, preoperatively and TEP was performed as for TEP groin hernia repair. The incarcerated intestine was retracted into the peritoneal cavity with the hernia sac. The obturator foramen was then covered with a rectangular mesh (9 × 13 cm), which also covered the internal inguinal ring, Hesselbach’s triangle, and the femoral ring. Non-ischemia of the incarcerated bowel was confirmed laparoscopically. In patients undergoing laparotomy, the obturator foramen was closed by continuous sutures, and no prosthesis was used. We recorded the length of hospital stay, operative time, amount of intraoperative bleeding, and postoperative complications.Results
Twenty-two patients underwent obturator hernia repair in our hospital between January 2000 and December 2012, of whom 10 were treated with laparotomy and the remaining 12 via TEP. Three patients undergoing TEP were converted to laparotomy. The operation time was significantly longer in the conversion group compared with either the laparotomy or the TEP groups. There was no difference between the laparotomy and TEP groups regarding intraoperative bleeding. Patients who underwent TEP without conversion had a significantly shorter hospital stay than those who underwent laparotomy or required conversion.Conclusions
TEP provides a suitable approach for incarcerated obturator hernia repair, with favorable results regarding hospital stay. TEP is a feasible, minimally invasive technique for the repair of incarcerated obturator hernias.15.
M. M. Roos G. J. Clevers E. J. Verleisdonk P. H. Davids C. van de Water R. J. Spermon L. S. Mulder J. P. J. Burgmans 《Hernia》2017,21(6):887-894
Purpose
Endoscopic totally extraperitoneal (TEP) hernia repair with polypropylene mesh has become a well-established technique. However, since the mesh is placed in close contact with the spermatic cord, mesh-induced inflammation may affect its structures, possibly resulting in impaired fertility. The aim of this observational prospective cohort study was to assess fertility after bilateral endoscopic TEP inguinal hernia repair in male patients.Methods
Fifty-seven male patients (22–60 years old) with primary, reducible, bilateral inguinal hernias underwent elective bilateral endoscopic TEP hernia repair with use of polypropylene mesh. The primary outcome was testicular perfusion; secondary outcomes were testicular volume, endocrinological status, and semen quality. All patients were assessed preoperatively and 6 months postoperatively.Results
Follow-up was completed in 44 patients. No statistically significant differences in measurements of testicular blood flow parameters or testicular volume were found. Postoperative LH levels were significantly higher [preoperative median 4.3 IU/L (IQR 3.4–5.3) versus postoperative median 5.0 IU/L (IQR 3.6–6.5), p = 0.03]. Levels of inhibin B were significantly lower postoperatively [preoperative median 139.0 ng/L (IQR 106.5–183.0) versus postoperative median 27.0 ng/L (IQR 88.3–170.9), p = 0.01]. No significant changes in FSH or testosterone levels were observed. There were no differences in semen quality.Conclusions
Our data suggest that bilateral endoscopic TEP hernia repair with polypropylene mesh does not impair fertility, as no differences in testicular blood flow, testicular volume, or semen quality were observed. Postoperative levels of LH and inhibin B differed significantly from preoperative measurements, yet no clinical relevance could be ascribed to these findings.16.
Purpose
To evaluate the management and outcomes of modified Marcy repair for inguinal hernia in a large series of children.Methods
We analyzed the case records of 6826 pediatric patients who underwent surgery for inguinal hernia between January, 1991 and January, 2015 at Split University Hospital in Croatia. The following parameters were examined: sex, age, location of the hernia, intraoperative or postoperative complications, recurrence, and surgical method.Results
The 6826 patients included 4751 boys and 2075 girls operated on for inguinal hernia. The mean age was 3.5 years, and mean followup was 14 years. Right-side predominance was noted with 59.50 % right hernia repairs, 33.72 % left hernia repairs, and 6.78 % bilateral hernia repairs. There were 6410 (93.90 %) elective procedures and 416 (6.10 %) emergency procedures for incarceration. The mean duration of surgery was 26 min (14–90 min), and the mean hospital stay was 1 day. Marcy repair was the most commonly performed operation (95.76 %), whereas Ferguson’s technique was performed in only 3.98 % of the children. The overall recurrence rate was 0.43 %, with a recurrence rate of 0.36 % for Marcy repair and 1.83 % for Ferguson repair (p = 0.0003).Conclusion
Modified Marcy hernia repair is a safe and effective procedure for inguinal hernia in children with excellent outcomes and a low incidence of recurrence.17.
Purpose
Choosing the best operative technique for unilateral inguinal hernia is a challenge for surgeons. Therefore, anticipating loss of strength in the lower extremity muscles could be the initial step to make the right decision. To this end, this prospective randomized controlled study compared the physical activity parameters of the lower extremity muscles in patients who underwent total extraperitoneal repair (TEP) and Stoppa repair.Methods
Fifty patients with unilateral inguinal hernia who were 18–65 years of age were admitted to a single institution in a metropolitan city in Turkey. Patients were randomized in a 1:1 ratio to parallel study arms of TEP and STOPPA repair. They were evaluated in the preoperative period and on the postoperative day 3 for an objective isometric and isokinetic assessment of the pain-related functional changes in the lower extremity muscles.Results
The measurement results obtained with the Cybex device on the postoperative day 3 were presented as numeric parameters in the digital setting, where the Stoppa repair resulted in a higher loss of strength in the lower extremities compared to the TEP repair. With respect to the total workforce loss in isokinetic muscular measurements at 90 °C/s extension, 90 °C/s flexion, 180 °C/s extension and 180 °C/s flexion, the difference between the TEP repair and Stoppa repair was statistically significant in favor of TEP repair (p < 0.05).Conclusion
This study is the first comparative study in the literature to demonstrate the favorable impact of the laparoscopic hernia repair on the physical activity on the same anatomic site compared to the open surgical procedure by using quantitative values. Trial registration: Clinicaltrials.gov ID: NCT02813057.18.
P. G. Rowse R. K. Ruparel J. M. Abdelsattar Y. N. AlJamal B. M. Dy D. R. Farley 《Hernia》2016,20(3):411-416
Purpose
The anatomy of the inguinal region is notoriously challenging to master. We sought to teach open inguinal hernia (OIH) and totally extraperitoneal (TEP) anatomy with simulation models among general surgery (GS) interns.Methods
Low-fidelity OIH and TEP models were constructed out of cardboard, plastic bins, fabric, and yarn. GS interns (n = 30) participated in a 3-h hernia session including a pretest, anatomy lecture, simulated OIH and TEP hernia repair, and posttest. Pre- and posttest scores were based on a difficult 30-point exam which included didactic questions (10 points), drawing relevant TEP (10 points), and OIH (10 points) anatomy. Participants were surveyed following the session.Results
Median pretest scores were 13 % (range 0–60 %). Median posttest scores improved to 47 % (range 20–93 %, p < 0.001). Median number of structures drawn in the TEP image improved from 2 (range 0–14) to 11 (range 1–21, p < 0.001). Median number of structures drawn in the OIH image improved from 3 (range 0–15) to 7 (range 1–19, p < 0.001). 67 % (12/18) demonstrated improvement in knowledge of abdominal wall layers. 23 % (7/30) knew the triangles of pain/doom on the pretest vs. 77 % (23/30) on the posttest. Mean Likert scores favored session enjoyability (4.5), not a waste of training time (4.4), and improved understanding of OIH and TEP anatomy (4.4, 4.2).Conclusions
Low-fidelity simulators can be used to teach and assess knowledge of TEP and OIH anatomy. While enjoyable and useful, one 3-h session does not create master hernia surgeons or expert anatomists out of novice trainees.19.
F. Köckerling B. Stechemesser M. Hukauf A. Kuthe C. Schug-Pass 《Surgical endoscopy》2016,30(8):3304-3313
Introduction
In the update of the guidelines of the European Hernia Society, open Lichtenstein and endoscopic techniques continue to be recommended as the surgical technique of choice for repair of unilateral primary inguinal hernias in men despite the fact that a meta-analysis had identified a higher recurrence rate for TEP compared with Lichtenstein operation. The Guidelines Group had taken that decision because one surgeon in one of the randomized controlled trials included in the meta-analysis had had a very high recurrence rate. Therefore, this study based on registry data now compares the outcome of TEP versus Lichtenstein repair.Patients and Methods
The analysis of the Herniamed Registry compares the prospective data collected for male patients undergoing primary unilateral inguinal hernia repair using either TEP or open Lichtenstein repair. Inclusion criteria were minimum age of 16 years, male patient, primary unilateral inguinal hernia, elective operation, and availability of data on 1-year follow-up. In total, 17,388 patients were enrolled between September 1, 2009, and August 31, 2013. Of these patients, 10,555 (60.70 %) had a Lichtenstein repair and 6833 (39.30 %) a TEP repair.Results
On multivariable analysis, the surgical technique was not found to have had any significant effect on the recurrence rate (p = 0.146) or on the chronic pain rate (p = 0.560). Nor did the complication-related reoperation rates differ significantly between the two techniques (p = 0.084). But TEP was found to have benefits as regards the postoperative complication rate (p < 0.001), pain at rest rate (p = 0.011), and pain on exertion rate (p < 0.001).Summary
In the present registry study, no significant difference was identified in the recurrence rates between the TEP and Lichtenstein technique. TEP was found to have benefits compared with Lichtenstein repair as regards the postoperative complication rates, pain at rest, and pain on exertion.20.