Safety and Efficacy of Prophylactic Re-sorbable Biosynthetic Mesh Following Midline Laparotomy in Clean/Contaminated Field. (Parthenope)

Safety and Efficacy of Prophylactic Resorbable Biosynthetic Mesh Following Midline Laparotomy in Clean/Contaminated Field: Protocol for a Multicenter Randomized Double Blind Prospected Trial.

The aim of the present study is to analyse the feasibility, safety and IH rate using a prophylactic sublay biosynthetic BIO-A (GORE) mesh in order to prevent incisional hernia following midline laparotomy in clean-contaminated and contaminated wounds. The study was designed as a double-blind randomized controlled trial comparing the running suture alone to the running suture reinforced with biosynthetic mesh (BIOA) in sub lay position.

Study Overview

• Status: Recruiting
• Conditions: Incisional Hernia After Midline Laparotomy
• Intervention / Treatment: Procedure: Sub-lay mesh supported closure; Device: BIO-A (GORE) mesh

Detailed Description

Incisional Hernia (IH) is one of the most frequent postoperative complications in abdominal surgery causing significant morbidity and even mortality. The risk of developing an IH following primary elective midline laparotomy is reported to be between 5 and 20 percent. Risk factors for developing IH are both patient and surgery related. Patient factors include diabetes, smoking, obesity, chronic corticosteroids use and connective tissue disorders, comprised the presence of an Abdominal Aortic Aneurysm (AAA). Surgery related factors include type of laparotomy, type of surgery, wounds classification, suture material used to close the laparotomy and the suture length to wound length ratio (SL/WL).

In patients carrying AAA and/or obesity and/or contaminated wounds, incidence rises to 39% (6,7). Besides the negative impact of incisional hernia regarding the patients' quality of life, the direct costs of hernia repair and indirect cost of IH (sick leave) are an important burden for the health care system.

Several groups investigated the role of prophylactic mesh placement in the prevention of IH occurrence. A positive conclusion was reached by two systemic reviews. On the other side, surgeons are mostly reluctant to implant permanent material in patients undergoing a contaminated ventral hernia repair for the increased risk of postoperative infections, bowel adhesions, mesh extrusion and/or erosion, fistula formation, seroma development and pain.

Recently, a retrospective study by Carbonell et al. investigated the feasibility and outcomes of open ventral hernia repairs performed with a polypropylene mesh in the retro-rectus position in clean-contaminated and contaminated fields, reporting a 30-day surgical site infection rate of 7.1 and 19.0% respectively. The most appropriate mesh for hernia repair in clean-contaminated and contaminated fields is not as clear .

Some other authors proposed the implant of Biological Meshes (BM) in contaminated and dirty wounds, but their high costs limited their use. Moreover, data about long-term durability of biologic grafts used in case of complex abdominal wall reconstruction are not clearly defined. The so-called biosynthetic meshes (BSM) may, actually, offer advantages when challenging with bacterial colonization during complex abdominal wall reconstruction.

The GORE BIO-A Tissue Reinforcement is a BSM composed of a bio-absorbable polyglycolide-trimethylene carbonate copolymer, which is gradually absorbed by the body.

The aim of the present study is to analyse the feasibility, safety and IH rate using a prophylactic sublay biosynthetic BIO-A (GORE) mesh in order to prevent incisional hernia following midline laparotomy in clean-contaminated and contaminated wounds. The study was designed as a double-blind randomized controlled trial comparing the running suture alone to the running suture reinforced with biosynthetic mesh (BIOA) in sub lay position.

• Study Type: Interventional
• Enrollment (Estimated): 151
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: Francesco Pizza; Phone Number: 3338275449; Email: francesco_pizza@libero.it
• Study Contact Backup: Name: Francesco Pizza; Email: francesco_pizza@libero.it

Study Locations

• Italy
  • Naples, Italy
    • Recruiting
    • francesco Pizza
    • Contact: francesco pizza, md phd; Email: francesco_pizza@libero.it
    • Contact: dario dantonio, md; Email: dario.dantonio@libero.it

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• age > 18 years
• Clean-contaminated, contaminated wounds • midline laparotomy >10 cm
• Informed consent

Exclusion Criteria:

• age < 18 years;
• life expectancy < 24 months (as estimated by the operating surgeon), - • pregnancy
• immunosuppressant therapy within 2 weeks before surgery
• clean and dirty wounds
• wound length<10 cm.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Double

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
No Intervention: Primary closure of midline laparotomy
Experimental: Sub-lay mesh supported closure; Sub-lay permanent mesh supported the closure	Procedure: Sub-lay mesh supported closure; A 4 cm space is created between posterior rectus sheath and rectus muscle, widening 2 cm at each side of midline. Both posterior rectus sheath edges are sutured using a running slowly absorbable suture. Above the arcuate line, posterior layer is reinforced suturing the peritoneum and the posterior rectus sheath; below the arcuate line, the posterior layer is reinforced suturing the peritoneum and the trasversalis fascia. Anterior layer is re-established suturing the anterior rectus sheath. A 3 cm BIO-A Mesh strip is sutureless placed between the posterior rectus sheath and the rectus muscle with an overlap of 1,5 cm at each side. In laparotomies >20 cm two stripes of 15 cm each is designed. The midline anterior rectus sheath is closed using a running slowly absorbable suture , covering the mesh.; Device: BIO-A (GORE) mesh; 3 cm BIO-A Mesh strip

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Rate of Incisional Hernia at Ultrasound examination	Ultrasound imaging is performed to examine the midline for all patients with symptomatic or asymptomatic, providing any valuable information about Incisional Hernia onset. Size and location of all ultrasound detected Incisional Hernia are registered, as well as any other patient's complaint. The ultrasonic criteria of Incisional Hernia are a visible gap within the abdominal wall and/or ''tissue moving through the abdominal wall by Valsalva manoeuvre'' and/or a detectable ''blowout''. Incisional Hernia is diagnosed if clinical criteria and/or ultrasound criteria are fulfilled.	3 months
Rate of Incisional Hernia at Ultrasound examination	Ultrasound imaging is performed to examine the midline for all patients with symptomatic or asymptomatic, providing any valuable information about Incisional Hernia onset. Size and location of all ultrasound detected Incisional Hernia are registered, as well as any other patient's complaint. The ultrasonic criteria of Incisional Hernia are a visible gap within the abdominal wall and/or ''tissue moving through the abdominal wall by Valsalva manoeuvre'' and/or a detectable ''blowout''. Incisional Hernia is diagnosed if clinical criteria and/or ultrasound criteria are fulfilled.	6 months
Rate of Incisional Hernia at Ultrasound examination	Ultrasound imaging is performed to examine the midline for all patients with symptomatic or asymptomatic, providing any valuable information about Incisional Hernia onset. Size and location of all ultrasound detected Incisional Hernia are registered, as well as any other patient's complaint. The ultrasonic criteria of Incisional Hernia are a visible gap within the abdominal wall and/or ''tissue moving through the abdominal wall by Valsalva manoeuvre'' and/or a detectable ''blowout''. Incisional Hernia is diagnosed if clinical criteria and/or ultrasound criteria are fulfilled.	12 months
Rate of Incisional Hernia at Ultrasound examination	Ultrasound imaging is performed to examine the midline for all patients with symptomatic or asymptomatic, providing any valuable information about Incisional Hernia onset. Size and location of all ultrasound detected Incisional Hernia are registered, as well as any other patient's complaint. The ultrasonic criteria of Incisional Hernia are a visible gap within the abdominal wall and/or ''tissue moving through the abdominal wall by Valsalva manoeuvre'' and/or a detectable ''blowout''. Incisional Hernia is diagnosed if clinical criteria and/or ultrasound criteria are fulfilled.	24 months
Rate of Incisional Hernia at Clinical examination	Clinical examination: Incisional Hernia is clinically defined as any visible or palpable ''blowout'' in the midline abdominal scar	3 months
Rate of Incisional Hernia at Clinical examination	Clinical examination: Incisional Hernia is clinically defined as any visible or palpable ''blowout'' in the midline abdominal scar	6 months
Rate of Incisional Hernia at Clinical examination	Clinical examination: Incisional Hernia is clinically defined as any visible or palpable ''blowout'' in the midline abdominal scar	12 months
Rate of Incisional Hernia at Clinical examination	Clinical examination: Incisional Hernia is clinically defined as any visible or palpable ''blowout'' in the midline abdominal scar	24 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of patients affected by Superficial surgical site infections	Superficial infections according to Clavien-Dindo criteria	Within 30 days postoperatively
Number of patients affected by Deep surgical site infections	Deep surgical site infections according to Clavien-Dindo criteria	Within 30 days postoperatively

Collaborators and Investigators

• Sponsor: Azienda Sanitaria Locale Napoli 2 Nord
• Investigators: Study Director: Francesco Pizza, Azienda Sanitaria Locale Napoli 2 Nord

Study record dates

Study Major Dates

• Study Start (Estimated): January 1, 2024
• Primary Completion (Estimated): June 30, 2024
• Study Completion (Estimated): June 30, 2024

Study Registration Dates

• First Submitted: July 10, 2020
• First Submitted That Met QC Criteria: July 14, 2020
• First Posted (Actual): July 15, 2020

Study Record Updates

• Last Update Posted (Actual): October 30, 2023
• Last Update Submitted That Met QC Criteria: October 27, 2023
• Last Verified: October 1, 2023

More Information

Terms related to this study

• Keywords: Incisional Hernia; Midline laparotomy; Contaminated wound
• Additional Relevant MeSH Terms: Pathologic Processes; Postoperative Complications; Pathological Conditions, Anatomical; Hernia; Incisional Hernia
• Other Study ID Numbers: 1872020

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No