A multicenter prospective study of patients undergoing open ventral hernia repair with intraperitoneal positioning using the monofilament polyester composite ventral patch: interim results of the PANACEA study

A Review of Advanced Abdominal Wall Hernia Patch Materials

Tension-free abdominal wall hernia patch materials (AWHPMs) play an important role in the repair of abdominal wall defects (AWDs), which have a recurrence rate of <1%. Nevertheless, there are still significant challenges in the development of tailored, biomimetic, and extracellular matrix (ECM)-like AWHPMs that satisfy the clinical demands of abdominal wall repair (AWR) while effectively handling post-operative complications associated with abdominal hernias, such as intra-abdominal visceral adhesion and abnormal healing. This extensive review presents a comprehensive guide to the high-end fabrication and the precise selection of these advanced AWHPMs. The review begins by briefly introducing the structures, sources, and properties of AWHPMs, and critically evaluates the advantages and disadvantages of different types of AWHPMs for AWR applications. The review subsequently summarizes and elaborates upon state-of-the-art AWHPM fabrication methods and their key characteristics (e.g., mechanical, physicochemical, and biological properties in vitro/vivo). This review uses compelling examples to demonstrate that advanced AWHPMs with multiple functionalities (e.g., anti-deformation, anti-inflammation, anti-adhesion, pro-healing properties, etc.) can meet the fundamental clinical demands required to successfully repair AWDs. In particular, there have been several developments in the enhancement of biomimetic AWHPMs with multiple properties, and additional breakthroughs are expected in the near future.

Parietex™ Composite Ventral Patch for primary and incisional hernia repair

BACKGROUNDS

Ventral hernia repair with a preformed device is a frequent intervention, but few reports exist with Parietex™ Composite Ventral Patch. The aim was to evaluate the results of this mesh with the open intraperitoneal onlay mesh (open IPOM) technique.

METHODS

Observational retrospective single institution study of all consecutive patients intervened for ventral or incisional hernia with a diameter inferior to 4 cm, from January 2013 to June 2020. The surgical repair was performed according to the open IPOM technique with Parietex™ Composite Ventral Patch.

RESULTS

A total of 146 patients were intervened: 61.6% with umbilical hernias, 8.2% with epigastric hernias, 26.7% with trocar incisional hernias, and 3.4% with other incisional hernias. The global recurrence rate was 7.5% (11/146). Specifically, it was 7.8% in umbilical hernias, 0% in epigastric hernias, 7.7% in trocar incisional hernias and 20% (1/5) in other incisional hernias. The median time for recurrence was 14 months (IQR: 4.4-18.7). The median indirect follow-up was 36.9 months (IQR: 27.2-49.6), and the median presential follow-up was 17.4 months (IQR: 6.5-27.3).

CONCLUSION

The open IPOM technique with a preformed patch offered satisfactory results for the treatment of ventral and incisional hernias.

Proper Surgical Treatment of Small and Medium Size Umbilical Hernias. A Single Surgeon Experience

Introduction: Minimally invasive surgical procedures have become routine interventions nowadays and represent an effective therapeutic option even for small umbilical hernias, providing favorable postoperative and aesthetic results.

Aim of study: To determine the most appropriate minimally invasive treatment option for small and medium size umbilical hernias.

Materials and methods: We conducted a prospective study on 50 patients with small or medium umbilical hernia (<4 cm). All patients benefited of minimal invasive surgery with mesh implantation. Depending on the surgical procedure, two major groups were defined: group A – patients with open surgical approach (n = 24) and group B – patients undergoing laparoscopic surgery (n = 26). Clinical, surgical, postoperative, and follow-up data were analyzed.

Results: Mesh replacement via open approach through the umbilicus was associated with significantly reduced surgical time (p = 0.0359), administration of painkillers (p = 0.0461), and use of anticoagulants (p = 0.0404). Hospital stays (p = 0.0001) and costs (p = 0.0005) were also significantly lower in this group. After 6 months of follow-up, no recurrence was observed, and no significant differences were detected regarding postoperative pain and the patients’ professional reintegration. Patient satisfaction regarding postoperative scar was superior in the open group.

Conclusion: The present study indicates that the ventral patch technique is a safe and effective method for the treatment of small and medium size umbilical hernias.

Hernia umbilical: un problema no resuelto

La cirugía de la hernia umbilical ha sido considerada tradicionalmente como sencilla y de fácil ejecución. El cambio conceptual de la hernia umbilical y los avances en su tratamiento han modificado su abordaje, estableciéndose escenarios de complejidad variable (obesidad, embarazo, cirróticos, distasis de los rectos, etc.) que demandan un conocimiento más profundo del tema por parte de la comunidad médica. El impacto económico en el sistema de salud, debido a su alta prevalencia como patología quirúrgica, implica un uso racional de recursos, así como la necesidad de una nueva categorización dentro de la cirugía de la pared abdominal. Es necesario establecer modificaciones en los procesos diagnósticos y terapéuticos en una entidad que ha sido relegada a los niveles básicos del ejercicio quirúrgico habitual.

Open ventral hernia repair with a composite ventral patch - final results of a multicenter prospective study

Background

This study assessed clinical outcomes, including safety and recurrence, from the two-year follow-up of patients who underwent open ventral primary hernia repair with the use of the Parietex™ Composite Ventral Patch (PCO-VP).

Methods

A prospective single-arm, multicenter study of 126 patients undergoing open ventral hernia repair for umbilical and epigastric hernias with the PCO-VP was performed.

Results

One hundred twenty-six subjects (110 with umbilical hernia and 16 with epigastric hernia) with a mean hernia diameter of 1.8 cm (0.4–4.0) were treated with PCO-VP. One hundred subjects completed the two-year study. Cumulative hernia recurrence was 3.0% (3/101; 95%CI: 0.0–6.3%) within 24 months. Median Numeric Rating Scale pain scores improved from 2 [0–10] at baseline to 0 [0–3] at 1 month (P < 0.001) and remained low at 24 months 0 [0–6] (P < 0.001). 99% (102/103) of the patients were satisfied with their repair at 24 months postoperative.

Conclusions

The use of PCO-VP to repair primary umbilical and epigastric defects yielded a low recurrence rate, low postoperative and chronic pain, and high satisfaction ratings, confirming that PCO-VP is effective for small ventral hernia repair in the two-year term after implantation.

Trial registration

The study was registered publically at clinicaltrials.gov (NCT01848184 registered May 7, 2013).