Logo American Journal of Case Reports

Call: 1.631.629.4328
Mon-Fri 10 am - 2 pm EST

Contact Us

Logo American Journal of Case Reports Logo American Journal of Case Reports Logo American Journal of Case Reports

18 November 2022: Articles  Belgium

Laparoscopic Intraperitoneal Onlay Mesh (IPOM) “Swiss Cheese” Ventral Incisional Hernia Repair with Urinary Bladder Mobilization: A Case Report

Challenging differential diagnosis, Diagnostic / therapeutic accidents, Unusual setting of medical care, Educational Purpose (only if useful for a systematic review or synthesis), Rare coexistence of disease or pathology

Alexandre Grapotte1EF, Sorin Cimpean2A*

DOI: 10.12659/AJCR.937606

Am J Case Rep 2022; 23:e937606



BACKGROUND: Incisional hernias (IH) are a common problem worldwide. The development of IH is influenced by factors related to the patient, the operative technique, and the suture material. In the treatment of ventral incisional hernias, laparoscopic IPOM and open sublay mesh repair are the most common techniques used for primary and recurrent hernias, with comparable short- and long-term outcomes.

CASE REPORT: We report a case of a pubo-umbilical “swiss cheese” IH treated by laparoscopy with the placement of a non-resorbable mesh in intraperitoneal position. The urinary bladder was mobilized for a convenient mesh fixation and sutured to the mesh in the previous anatomical position, at the level of the upper peritoneal layer. “Swiss cheese” hernia is a particular form of IH, characterized by the presence of multiple small defects. Laparoscopic intraperitoneal onlay mesh (IPOM) IH repair for defects under 10 cm is a reliable alternative to open ventral hernia repair. Transfascial sutures represent a simple solution for the defect closure and are associated with lower incidence of seroma and recurrence. The use of a mesh allows improving the muscle functionality and preventing hernia recurrence and also is associated with reduced recurrence rates compared to primary suture repair and additionally provides superior mechanical stability.

CONCLUSIONS: In case of pubo-umbilical medial “swiss cheese” IH, mobilization of the urinary bladder is necessary and allows a complete abdominal wall approximation and convenient mesh placement.

Keywords: case reports, incisional hernia, Laparoscopy, Hernia, Ventral, Humans, Surgical Mesh, Urinary Bladder, Hernia, Umbilical


Abdominal incisional hernias (IH) acquired after surgeries performed by laparotomy or laparoscopy are responsible for morbidity, impaired quality of life, and increased healthcare costs. In the first 2 years after the primary surgery, the incidence of IH is 10–20%, mostly after laparotomy [1].

The development of incisional hernias is related to a multitude of factors; factors related to the patient, the operative technique, and also the suture material. Factors related to the operative technique are type and size of incision and to the patient are high body mass index (BMI), co-morbidities like hypertension and diabetes, or poor nutritional status [2].

In the treatment of ventral incisional hernias, laparoscopic IPOM and open sublay mesh repair are the most common techniques used for primary and recurrent hernias, with comparable short and long-term outcomes [3]. Laparoscopic or robotic approaches provide minimal contact with the mesh and reduce the risk of infections by remote positioning of the tro-cars from the mesh [4].

We report a pubo-umbilical “swiss cheese” IH that necessitated a urinary bladder mobilization for a correct mesh placement. The bladder was sutured to the mesh in its previous anatomical position. This report is focused on the technical aspect of the dissection and mesh fixation.

Case Report


For the surgery, we used a basic laparoscopy set and a needle-holder. A urinary catheter (Foley catheter) was placed prior to the surgery. The procedure was performed by laparos-copy with the placement of 3 trocars in the left abdominal side. We placed the trocars in the left lateral side to allow for a complete exploration of the median abdominal line and repairs to all the potential defects.

The exploration confirmed the presence of a “swiss cheese” IH on the pubo-umbilical scar. The parietal defect was close to the pubic symphysis and necessitated an access to the pre-vesical space (Retzius space) for a convenient abdominal wall approximation and mesh placement. The pre-vesical space was opened by sectioning the peritoneal sheet at the apex of the urinary bladder. The Retzius plane was accessed, and the dissection was performed caudally under the pubic bone and laterally to the medial umbilical fold. The aponeurosis was approximated by percutaneous suture using resorbable stitches (Vicryl 1).

A 20×15 cm dual-mesh (Parietex™ Composite Mesh, Covidien, New Haven, CT, USA) was placed and fixed caudally to the pubic bone with resorbable tracks. The mesh was fixed to the abdominal wall with absorbable tacks (Figure 2). The urinary bladder was sutured to the mesh in the previous anatomical position, at the level of the upper peritoneal layer, using a running suture with resorbable barbed suture (Figure 3).


The postoperative course was uneventful. The urinary catheter was removed on the first postoperative day, and the patient spontaneously resumed normal voiding. The patient was discharged on the first postoperative day with antalgic medication. At 6-month follow-up, there had been no hernia recurrence or urinary problems related to the mesh placement.


The life-time risk for developing an IH has been estimated at 5% in the general population [5]. IH is a worldwide problem that occurs in 11–20% of cases. The risk of IH is higher in surgeries performed by laparotomy [6]. Multiple factors are involved and may be related to the patient, the type of primary surgery, and biological factors related to the patients [7].

In 1992 Le Blanc et al described the first IPOM laparoscopic approach, which has proved to be a safe alternative to open ventral hernia repair [8]. With the multitude of techniques by laparotomy and mostly by laparoscopy, the most effective technique or the standard procedure for the treatment of IH is undefined [9]. Laparoscopic repair of IH is associated with shorter hospital stay, lower rates of wound infection, earlier recovery, and recurrence rates under 5% [10].

According to the guidelines, laparoscopic IPOM repair is indicated when the size of the defect is under 10 cm. For larger defects, laparoscopic treatment can predispose to recurrence and is no longer indicated [11]. For the treatment of defects larger than 10 cm, studies indicate significantly higher rates chronic pain requiring treatment [12]. In cases of lower abdominal hernias, the treatment is complex, necessitating not only the repair of the abdominal wall, but also mobilization of the urinary bladder for convenient mesh placement. Fan et al, in a study on 98 patients with ventral hernias, found that the bladder mobilization with mesh placement is safe and effective [13].

Köckerling et al, in a systematic review, found that the laparoscopic approach compared with the open IPOM technique had a significantly lower postoperative complication rate and hospital stay and similar recurrence rate [14].

In case of laparoscopy or robotic approach, hernia defect closure by transfacial suture is a simple method of repair and has a lower incidence of seroma and recurrence. The minimal invasive approach facilitates mesh positioning and allows early functional recovery of the abdominal muscles [14].

The use of mesh is associated with reduced recurrence rates compared to primary suture repair and additionally provides superior mechanical stability [16]. Mesh placement allows correcting loss of domain and helps to maintain the rectus muscles in the midline [17]. Potential complications related to urinary bladder mobilization include bladder injury, urinary retention, and hematoma. Regarding the mesh, Kok et al described a urinary bladder erosion, with fistulation to the abdominal wall resulting in necrotizing fasciitis [18].

“Swiss cheese” hernia is a particular form of IH, characterized by the presence of multiple small defects. This type of IH is a reliable indication for the laparoscopic approach because the defects are usually small and despite the increase number of defects, the wall approximation can be performed conveniently.

In our case, the presence of a parietal defect closely to the pubic bone necessitated access to the Retzius space for appropriate placement of the mesh. For mesh fixation on the pubic bone, we used resorbable tacks to prevent development of chronic pain. We performed suturing of the bladder on the mesh to avoid an internal hernia and to prevent problems related to the abnormal umbility of the bladder.


In pubo-umbilical “swiss cheese” IH, mobilization of the urinary bladder allows abdominal wall approximation and correct mesh placement. The laparoscopic repair of this type of a hernia provides rapid recovery and minimizes the risk of infection as well as reducing the incidence postoperative pain.


1.. Zhang L, Incidence of abdominal incisional hernia in developing country: A retrospective cohort study: Int J Clin Exp Med, 2015; 8(8); 13649-52

2.. Mutwali I, Incisional hernia: Risk factors, incidence, pathogenesis, prevention and complications: Sudan Med Monit, 2014; 9(2); 81

3.. Yanari S, Suto T, Fujiwara H, Intraperitoneal onlay mesh repair (IPOM) plus technique using a hybrid procedure of open laparotomy and laparoscopic approach (hybrid IPOM plus) for incarceration of umbilical hernia in a severely obese patient: A case report: Surg Case Rep, 2020; 6(1); 83

4.. Jani K, Laparoscopic intra-peritoneal onlay mesh plus repair for ventral abdominal wall hernias – is there substance to the hype?: Mini-invasive Surg, 2018; 2(5); 14

5.. Köckerling F, Simon T, Adolf D, Laparoscopic IPOM versus open sublay technique for elective incisional hernia repair: A registry-based, propensity score-matched comparison of 9907 patients: Surg Endosc, 2019; 33(10); 3361-69

6.. Ali F, Sandblom G, Wikner A, Wallin G, Laparoscopic ventral and incisional hernia repair using intraperitoneal onlay mesh with peritoneal bridging: Hernia, 2022; 26(2); 635-46

7.. Köckerling F, Lammers B, Open Intraperitoneal Onlay Mesh (IPOM) technique for incisional hernia repair: Front Surg, 2018; 5; 66

8.. Piccoli M, Pecchini F, Vetrone G, Predictive factors of recurrence for laparoscopic repair of primary and incisional ventral hernias with single mesh from a multicenter study: Sci Rep, 2022; 12(1); 4215

9.. Bittner R, Bain K, Bansal VK, Update of guidelines for laparoscopic treatment of ventral and incisional abdominal wall hernias (International Endohernia Society (IEHS)): Part B: Surg Endosc, 2019; 33(11); 3511-49

10.. Köckerling F, Lammers B, Weyhe D, What is the outcome of the open IPOM versus sublay technique in the treatment of larger incisional hernias?: A propensity score-matched comparison of 9091 patients from the Herniamed Registry: Hernia, 2021; 25(1); 23-31

11.. Sharma A, Mehrotra M, Khullar R, Laparoscopic ventral/incisional hernia repair: A single centre experience of 1,242 patients over a period of 13 years: Hernia, 2011; 15(2); 131-39

12.. Rastegarpour A, Cheung M, Vardhan M, Surgical mesh for ventral incisional hernia repairs: Understanding mesh design: Plast Surg (Oakv), 2016; 24(1); 41-50

13.. Fan JKM, Yip J, Fung M, Minimally invasive approach to supra-pubic and non-midline lower abdominal ventral hernia – an extended indication of TAPE technique: J Minim Invasive Surg, 2017; 20(3); 84-92

14.. Alizai PH, Lelaona E, Andert A, Incisional hernia repair of medium-and large-sized defects: Laparoscopic IPOM versus open SUBLAY technique: Acta Chirurgica Belgica, 2019; 119(4); 231-35

15.. Salgaonkar H, Wijerathne S, Lomanto D, Managing complications in laparoscopic ventral hernia: Ann Laparosc Endosc Surg, 2019; 4; 11

16.. Sieda BM, Khalil OH, Short-term outcomes of laparoscopic intraperitoneal onlay mesh with fascial repair (ipom-plus) for ventral hernia: A randomized controlled trial: The Egyptian Journal of Surgery, 2020; 39(3); 764-73

17.. Larson GM, Laparoscopic repair of ventral hernia: The SAGES Manual: Fundamentals of Laparoscopy and GI Endoscopy, 1999; 379-85, Berlin, Heidelberg, Springer

18.. Kok ASY, Cheung TSH, Lam DCT, Mesh erosion to urinary bladder causing fistulation to abdominal wall resulting in necrotizing fasciitis: A case report of late complication of incisional hernia: Int J Surg Case Rep, 2017; 39; 1857

In Press

30 Mar 2024 : Case report  USA

Leukemia Cutis in Relapsed Acute Myeloid Leukemia: A Call for Distinct Classification

Am J Case Rep In Press; DOI: 10.12659/AJCR.943577  


02 Apr 2024 : Case report  China (mainland)

Oculomotor Nerve Palsy Induced by a Cerebral Developmental Venous Anomaly: A Case Report and Comprehensive ...

Am J Case Rep In Press; DOI: 10.12659/AJCR.943363  

02 Apr 2024 : Case report  Brazil

Langerhans Cell Histiocytosis in Sphenoid Sinus: Uncommon Bone Involvement

Am J Case Rep In Press; DOI: 10.12659/AJCR.942681  

03 Apr 2024 : Case report  Jordan

A Rare Case of Congenital Nephrogenic Diabetes Insipidus Associated with Aquaporin 2 Gene Mutation and Subs...

Am J Case Rep In Press; DOI: 10.12659/AJCR.943597  

Most Viewed Current Articles

07 Mar 2024 : Case report  USA

Neurocysticercosis Presenting as Migraine in the United States

DOI :10.12659/AJCR.943133

Am J Case Rep 2024; 25:e943133


10 Jan 2022 : Case report  Germany

A Report on the First 7 Sequential Patients Treated Within the C-Reactive Protein Apheresis in COVID (CACOV...

DOI :10.12659/AJCR.935263

Am J Case Rep 2022; 23:e935263

19 Jul 2022 : Case report  Saudi Arabia

Atlantoaxial Subluxation Secondary to SARS-CoV-2 Infection: A Rare Orthopedic Complication from COVID-19

DOI :10.12659/AJCR.936128

Am J Case Rep 2022; 23:e936128

23 Feb 2022 : Case report  USA

Penile Necrosis Associated with Local Intravenous Injection of Cocaine

DOI :10.12659/AJCR.935250

Am J Case Rep 2022; 23:e935250

Your Privacy

We use cookies to ensure the functionality of our website, to personalize content and advertising, to provide social media features, and to analyze our traffic. If you allow us to do so, we also inform our social media, advertising and analysis partners about your use of our website, You can decise for yourself which categories you you want to deny or allow. Please note that based on your settings not all functionalities of the site are available. View our privacy policy.

American Journal of Case Reports eISSN: 1941-5923
American Journal of Case Reports eISSN: 1941-5923