G Pascual1,2, S Sotomayor3,4, M Rodríguez5,4, Y Bayon6, J M Bellón5,4. 1. Department of Medicine and Medical Specialties, Faculty of Medicine and Health Sciences, University of Alcalá, Ctra. Madrid-Barcelona, Km 33,600, 28871, Alcalá De Henares, Madrid, Spain. gemma.pascual@uah.es. 2. Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain. gemma.pascual@uah.es. 3. Department of Medicine and Medical Specialties, Faculty of Medicine and Health Sciences, University of Alcalá, Ctra. Madrid-Barcelona, Km 33,600, 28871, Alcalá De Henares, Madrid, Spain. 4. Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain. 5. Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, Ctra. Madrid-Barcelona, Km 33,600, 28871, Alcalá De Henares, Madrid, Spain. 6. Covidien-Sofradim Production, 116 Avenue du Formans, 01600, Trévoux, France.
Abstract
PURPOSE: When composite meshes are used in abdominal wall repair, seroma formation may persist and delay the desired integration leading to recurrence. This study compares tissue integration and inflammatory response in abdominal wall repair with composites with different absorbable synthetic barriers. METHODS: Full-thickness defects created in the abdominal wall of rabbits were repaired using polypropylene prosthesis or the following composites: Physiomesh™ (Phy); Ventralight™ (Vent) and "new composite mesh" (Ncm) not yet used clinically in humans. The collected seroma was evaluated for IFN-γ/IL-4 by ELISA. Tissue integration, anti- (IL-13/TGFβ-1/IL-10/IL-4) and pro-inflammatory (TNF-α/IL-6/IFN-γ/VEGF) cytokine mRNA expression and TGFβ/VEGF immunolabeling were evaluated at 14 and 90 days post-implant. RESULTS: Seroma was observed in 10 of 12 Phy/Vent and 4 of 12 Ncm. Wound fluid IFN-γ showed a time-dependent significant increase in Vent and tendency to decrease in Ncm, while all composites exhibited IL-4 upward trend. Prostheses were fully infiltrated by an organized connective tissue at end time although the area had shown prior seroma. A stable mesothelium was developed, except in adhesion areas. Vent/Phy displayed a significant increase in TNF-α/IFN-γ-mRNA over time. Significant decrease in VEGF mRNA was observed in Phy/Ncm, while a significant increase of TGFβ-1 mRNA was evident in all composites over time. Ncm exhibited the highest TGFβ protein expression area at short term and the greatest percentage of VEGF positive vessels at end time. CONCLUSION: Ncm could be an appropriate candidate to improve clinical outcome showing the lower development of seroma and optimal tissue integration with minimal pro-inflammatory cytokine response over time and consistent pro-wound healing cytokine expression.
PURPOSE: When composite meshes are used in abdominal wall repair, seroma formation may persist and delay the desired integration leading to recurrence. This study compares tissue integration and inflammatory response in abdominal wall repair with composites with different absorbable synthetic barriers. METHODS: Full-thickness defects created in the abdominal wall of rabbits were repaired using polypropylene prosthesis or the following composites: Physiomesh™ (Phy); Ventralight™ (Vent) and "new composite mesh" (Ncm) not yet used clinically in humans. The collected seroma was evaluated for IFN-γ/IL-4 by ELISA. Tissue integration, anti- (IL-13/TGFβ-1/IL-10/IL-4) and pro-inflammatory (TNF-α/IL-6/IFN-γ/VEGF) cytokine mRNA expression and TGFβ/VEGF immunolabeling were evaluated at 14 and 90 days post-implant. RESULTS:Seroma was observed in 10 of 12 Phy/Vent and 4 of 12 Ncm. Wound fluid IFN-γ showed a time-dependent significant increase in Vent and tendency to decrease in Ncm, while all composites exhibited IL-4 upward trend. Prostheses were fully infiltrated by an organized connective tissue at end time although the area had shown prior seroma. A stable mesothelium was developed, except in adhesion areas. Vent/Phy displayed a significant increase in TNF-α/IFN-γ-mRNA over time. Significant decrease in VEGF mRNA was observed in Phy/Ncm, while a significant increase of TGFβ-1 mRNA was evident in all composites over time. Ncm exhibited the highest TGFβ protein expression area at short term and the greatest percentage of VEGF positive vessels at end time. CONCLUSION: Ncm could be an appropriate candidate to improve clinical outcome showing the lower development of seroma and optimal tissue integration with minimal pro-inflammatory cytokine response over time and consistent pro-wound healing cytokine expression.
Authors: William G Brodbeck; Gabriela Voskerician; Nicholas P Ziats; Yasuhide Nakayama; Takehisa Matsuda; James M Anderson Journal: J Biomed Mater Res A Date: 2003-02-01 Impact factor: 4.396
Authors: M Poussier; E Denève; P Blanc; E Boulay; M Bertrand; M Nedelcu; A Herrero; J-M Fabre; D Nocca Journal: J Visc Surg Date: 2012-11-06 Impact factor: 2.043
Authors: Ferdinand Köckerling; Thomas Simon; Martin Hukauf; Achim Hellinger; Rene Fortelny; Wolfgang Reinpold; Reinhard Bittner Journal: Ann Surg Date: 2018-12 Impact factor: 12.969