Skip to main content
Top
Published in: Surgical Endoscopy 11/2011

01-11-2011

Impact of pressure and gas type on adhesion formation and biomaterial integration in laparoscopy

Authors: R. Rosch, M. Binnebösel, C. D. Klink, J. Otto, K. Junge, U. P. Neumann

Published in: Surgical Endoscopy | Issue 11/2011

Login to get access

Abstract

Background

Laparoscopic mesh repair of inguinal and incisional hernias has been widely adopted. Nevertheless, knowledge about the impact of pneumoperitoneum on mesh integration is rare. The present study investigates pressure and gas-dependent effects of pneumoperitoneum on adhesion formation and biomaterial integration in a standardized animal model.

Methods

Laparoscopic intraperitoneal onlay mesh implantation (IPOM) was performed in 32 female chinchilla rabbits using CO2 or helium for pneumoperitoneum. Intra-abdominal pressures were 3 or 6 mmHg. Animals were killed after 21 days, and the abdominal wall was explanted for subsequent histopathological examinations. Adhesions were assessed qualitatively with a scoring system, and the adhesion surface was analyzed semiquantitatively by planimetry. Infiltration of macrophages (CD68), expression of matrix metalloproteinase 13 (MMP-13), and cell proliferation (Ki67) were analyzed at the mesh to host interface by immunohistochemistry. The collagen type I/III ratio was analyzed by cross-polarization microscopy to determine the quality of mesh integration.

Results

After 21 days, perifilamental infiltration with macrophages (CD68) and percentage of proliferating cells (Ki67) were highest after 6 mmHg of CO2 pneumoperitoneum. The extent of adhesions, as well as the expression of MMP-13 and the collagen type I/III ratio, were similar between groups.

Conclusions

Our experiments showed no pressure or gas-dependent alterations of adhesion formation and only minor effects on biomaterial integration. Altogether, there is no evidence for a clinically negative effect of CO2 pneumoperitoneum.
Literature
1.
go back to reference Zinther NB, Wara P, Friis-Andersen H (2010) Intraperitoneal onlay mesh: an experimental study of adhesion formation in a sheep model. Hernia 14(3):283–289PubMedCrossRef Zinther NB, Wara P, Friis-Andersen H (2010) Intraperitoneal onlay mesh: an experimental study of adhesion formation in a sheep model. Hernia 14(3):283–289PubMedCrossRef
2.
go back to reference Conze J, Rosch R, Klinge U, Weiss C, Anurov M, Titkowa S, Oettinger A, Schumpelick V (2004) Polypropylene in the intra-abdominal position: influence of pore size and surface area. Hernia 8(4):365–372PubMedCrossRef Conze J, Rosch R, Klinge U, Weiss C, Anurov M, Titkowa S, Oettinger A, Schumpelick V (2004) Polypropylene in the intra-abdominal position: influence of pore size and surface area. Hernia 8(4):365–372PubMedCrossRef
3.
go back to reference Jacobi CA, Sterzel A, Braumann C, Halle E, Stosslein R, Krahenbuhl L, Muller JM (2001) The impact of conventional and laparoscopic colon resection (CO2 or helium) on intraperitoneal adhesion formation in a rat peritonitis model. Surg Endosc 15:380–386PubMedCrossRef Jacobi CA, Sterzel A, Braumann C, Halle E, Stosslein R, Krahenbuhl L, Muller JM (2001) The impact of conventional and laparoscopic colon resection (CO2 or helium) on intraperitoneal adhesion formation in a rat peritonitis model. Surg Endosc 15:380–386PubMedCrossRef
4.
go back to reference Nagelschmidt M, Gerbecks D, Minor T (2001) The impact of gas laparoscopy on abdominal plasminogen activator activity. Surg Endosc 15:585–588PubMedCrossRef Nagelschmidt M, Gerbecks D, Minor T (2001) The impact of gas laparoscopy on abdominal plasminogen activator activity. Surg Endosc 15:585–588PubMedCrossRef
5.
go back to reference Yesildaglar N, Koninckx PR (2000) Adhesion formation in intubated rabbits increases with high insufflation pressure during endoscopic surgery. Hum Reprod 15:687–691PubMedCrossRef Yesildaglar N, Koninckx PR (2000) Adhesion formation in intubated rabbits increases with high insufflation pressure during endoscopic surgery. Hum Reprod 15:687–691PubMedCrossRef
6.
go back to reference Bingener J, Buck L, Richards M, Michalek J, Schwesinger W, Sirinek K (2007) Long-term outcomes in laparoscopic vs open ventral hernia repair. Arch Surg 142:562–567PubMedCrossRef Bingener J, Buck L, Richards M, Michalek J, Schwesinger W, Sirinek K (2007) Long-term outcomes in laparoscopic vs open ventral hernia repair. Arch Surg 142:562–567PubMedCrossRef
7.
go back to reference Benhidjeb T, Benecke C, Strik MW (2008) Incisional hernia repair: sublay or intraperitoneal onlay mesh (IPOM)? Zentralbl Chir 133:458–463PubMedCrossRef Benhidjeb T, Benecke C, Strik MW (2008) Incisional hernia repair: sublay or intraperitoneal onlay mesh (IPOM)? Zentralbl Chir 133:458–463PubMedCrossRef
8.
go back to reference Sarli L, Pietra N, Choua O, Costi R, Cattaneo G (1997) Laparoscopic hernia repair: a prospective comparison of TAPP and IPOM techniques. Surg Laparosc Endosc 7:472–476PubMedCrossRef Sarli L, Pietra N, Choua O, Costi R, Cattaneo G (1997) Laparoscopic hernia repair: a prospective comparison of TAPP and IPOM techniques. Surg Laparosc Endosc 7:472–476PubMedCrossRef
9.
go back to reference Langenbach MR, Schmidt J, Ubrig B, Zirngibl H (2008) Sixty-month follow-up after endoscopic inguinal hernia repair with three types of mesh: a prospective randomized trial. Surg Endosc 22:1790–1797PubMedCrossRef Langenbach MR, Schmidt J, Ubrig B, Zirngibl H (2008) Sixty-month follow-up after endoscopic inguinal hernia repair with three types of mesh: a prospective randomized trial. Surg Endosc 22:1790–1797PubMedCrossRef
10.
go back to reference Pokorny H, Klingler A, Schmid T, Fortelny R, Hollinsky C, Kawji R, Steiner E, Pernthaler H, Fugger R, Scheyer M (2008) Recurrence and complications after laparoscopic versus open inguinal hernia repair: results of a prospective randomized multicenter trial. Hernia 12:385–389PubMedCrossRef Pokorny H, Klingler A, Schmid T, Fortelny R, Hollinsky C, Kawji R, Steiner E, Pernthaler H, Fugger R, Scheyer M (2008) Recurrence and complications after laparoscopic versus open inguinal hernia repair: results of a prospective randomized multicenter trial. Hernia 12:385–389PubMedCrossRef
11.
go back to reference Ozer I, Ulas M, Ercan M, Ozogul YB, Zengin N, Bostanci EB, Ozel U, Bilgihan A, Akoglu M (2008) The effects of duration of CO2 pneumoperitoneum on colonic anastomosis. J Invest Surg 21:177–181PubMedCrossRef Ozer I, Ulas M, Ercan M, Ozogul YB, Zengin N, Bostanci EB, Ozel U, Bilgihan A, Akoglu M (2008) The effects of duration of CO2 pneumoperitoneum on colonic anastomosis. J Invest Surg 21:177–181PubMedCrossRef
12.
go back to reference Robbins SB, Pofahl WE, Gonzalez RP (2001) Laparoscopic ventral hernia repair reduces wound complications. Am Surg 67:896–900PubMed Robbins SB, Pofahl WE, Gonzalez RP (2001) Laparoscopic ventral hernia repair reduces wound complications. Am Surg 67:896–900PubMed
13.
go back to reference Ikechebelu JI, Obi RA, Udigwe GO, Joe-Ikechebelu NN (2005) Comparison of carbon dioxide and room air pneumoperitoneum for day-case diagnostic laparoscopy. J Obstet Gynaecol 25:172–173PubMedCrossRef Ikechebelu JI, Obi RA, Udigwe GO, Joe-Ikechebelu NN (2005) Comparison of carbon dioxide and room air pneumoperitoneum for day-case diagnostic laparoscopy. J Obstet Gynaecol 25:172–173PubMedCrossRef
14.
go back to reference Kollmorgen CF, Thompson GB, Grant CS, van Heerden JA, Byrne J, Davies ET, Donohue JH, Ilstrup DM, Young WF (1998) Laparoscopic versus open posterior adrenalectomy: comparison of acute-phase response and wound healing in the cushingoid porcine model. World J Surg 22:613–619PubMedCrossRef Kollmorgen CF, Thompson GB, Grant CS, van Heerden JA, Byrne J, Davies ET, Donohue JH, Ilstrup DM, Young WF (1998) Laparoscopic versus open posterior adrenalectomy: comparison of acute-phase response and wound healing in the cushingoid porcine model. World J Surg 22:613–619PubMedCrossRef
15.
go back to reference Agalar F, Hamaloglu E, Daphan C, Tarim A, Onur R, Renda N, Sayek I (2000) Effects of CO2 insufflation and laparotomy on wound healing in mice. Aust N Z J Surg 70:739–742PubMedCrossRef Agalar F, Hamaloglu E, Daphan C, Tarim A, Onur R, Renda N, Sayek I (2000) Effects of CO2 insufflation and laparotomy on wound healing in mice. Aust N Z J Surg 70:739–742PubMedCrossRef
16.
go back to reference Chekan EG, Nataraj C, Clary EM, Hayward TZ, Brody FJ, Stamat JC, Fina MC, Eubanks WS, Westcott CJ (1999) Intraperitoneal immunity and pneumoperitoneum. Surg Endosc 13:1135–1138PubMedCrossRef Chekan EG, Nataraj C, Clary EM, Hayward TZ, Brody FJ, Stamat JC, Fina MC, Eubanks WS, Westcott CJ (1999) Intraperitoneal immunity and pneumoperitoneum. Surg Endosc 13:1135–1138PubMedCrossRef
17.
go back to reference Jacobi CA, Ordemann J, Halle E, Volk HD, Muller JM (1999) Impact of laparoscopy with carbon dioxide versus helium on local and systemic inflammation in an animal model of peritonitis. J Laparoendosc Adv Surg Tech A 9:305–312PubMedCrossRef Jacobi CA, Ordemann J, Halle E, Volk HD, Muller JM (1999) Impact of laparoscopy with carbon dioxide versus helium on local and systemic inflammation in an animal model of peritonitis. J Laparoendosc Adv Surg Tech A 9:305–312PubMedCrossRef
18.
go back to reference Rosch R, Stumpf M, Junge K, Drinjakovic D, Schachtrupp A, Afify M, Schumpelick V (2005) Influence of pneumoperitoneum on small bowel anastomoses: a histological analysis in the rat model. J Invest Surg 18:63–69PubMedCrossRef Rosch R, Stumpf M, Junge K, Drinjakovic D, Schachtrupp A, Afify M, Schumpelick V (2005) Influence of pneumoperitoneum on small bowel anastomoses: a histological analysis in the rat model. J Invest Surg 18:63–69PubMedCrossRef
19.
go back to reference Rosch R, Stumpf M, Junge K, Ardic D, Ulmer F, Schumpelick V (2004) Impact of pressure and gas type on anastomotic wound healing in rats. Langenbecks Arch Surg 389:261–266PubMedCrossRef Rosch R, Stumpf M, Junge K, Ardic D, Ulmer F, Schumpelick V (2004) Impact of pressure and gas type on anastomotic wound healing in rats. Langenbecks Arch Surg 389:261–266PubMedCrossRef
20.
go back to reference Rosch R, Junge K, Binnebösel M, Mirgarth N, Klinge U, Schumpelick V (2006) Improved abdominal wall wound healing by helium pneumoperitoneum. Surg Endosc 20(12):1892–1896PubMedCrossRef Rosch R, Junge K, Binnebösel M, Mirgarth N, Klinge U, Schumpelick V (2006) Improved abdominal wall wound healing by helium pneumoperitoneum. Surg Endosc 20(12):1892–1896PubMedCrossRef
21.
go back to reference Hooker GD, Taylor BM, Driman DK (1999) Prevention of adhesion formation with use of sodium hyaluronate-based bioresorbable membrane in a rat model of ventral hernia repair with polypropylene mesh—a randomized, controlled study. Surgery 125:211–216PubMedCrossRef Hooker GD, Taylor BM, Driman DK (1999) Prevention of adhesion formation with use of sodium hyaluronate-based bioresorbable membrane in a rat model of ventral hernia repair with polypropylene mesh—a randomized, controlled study. Surgery 125:211–216PubMedCrossRef
22.
go back to reference Rosch R, Stumpf M, Junge K, Ardic D, Ulmer F, Schumpelick V (2004) Impact of pressure and gas type on anastomotic wound healing in rats. Langenbecks Arch Surg 389:261–266PubMedCrossRef Rosch R, Stumpf M, Junge K, Ardic D, Ulmer F, Schumpelick V (2004) Impact of pressure and gas type on anastomotic wound healing in rats. Langenbecks Arch Surg 389:261–266PubMedCrossRef
23.
go back to reference Junge K, Klinge U, Rosch R, Mertens PR, Kirch J, Klosterhalfen B, Lynen P, Schumpelick V (2004) Decreased collagen type I/III ratio in patients with recurring hernia after implantation of alloplastic prostheses. Langenbecks Arch Surg 389:17–22PubMedCrossRef Junge K, Klinge U, Rosch R, Mertens PR, Kirch J, Klosterhalfen B, Lynen P, Schumpelick V (2004) Decreased collagen type I/III ratio in patients with recurring hernia after implantation of alloplastic prostheses. Langenbecks Arch Surg 389:17–22PubMedCrossRef
24.
go back to reference Klinge U, Si ZY, Zheng H, Schumpelick V, Bhardwaj RS, Klosterhalfen B (2001) Collagen I/III and matrix metalloproteinases (MMP) 1 and 13 in the fascia of patients with incisional hernias. J Invest Surg 14:47–54PubMedCrossRef Klinge U, Si ZY, Zheng H, Schumpelick V, Bhardwaj RS, Klosterhalfen B (2001) Collagen I/III and matrix metalloproteinases (MMP) 1 and 13 in the fascia of patients with incisional hernias. J Invest Surg 14:47–54PubMedCrossRef
25.
go back to reference Neuberger TJ, Andrus CH, Wittgen CM, Wade TP, Kaminski DL (1996) Prospective comparison of helium versus carbon dioxide pneumoperitoneum. Gastrointest Endosc 43:38–41PubMed Neuberger TJ, Andrus CH, Wittgen CM, Wade TP, Kaminski DL (1996) Prospective comparison of helium versus carbon dioxide pneumoperitoneum. Gastrointest Endosc 43:38–41PubMed
26.
go back to reference Leighton TA, Liu SY, Bongard FS (1993) Comparative cardiopulmonary effects of carbon dioxide versus helium pneumoperitoneum. Surgery 113:527–531PubMed Leighton TA, Liu SY, Bongard FS (1993) Comparative cardiopulmonary effects of carbon dioxide versus helium pneumoperitoneum. Surgery 113:527–531PubMed
27.
go back to reference Kuntz C, Wunsch A, Bodeker C, Bay F, Rosch R, Windeler J, Herfarth C (2000) Effect of pressure and gas type on intraabdominal, subcutaneous, and blood pH in laparoscopy. Surg Endosc 14:367–371PubMedCrossRef Kuntz C, Wunsch A, Bodeker C, Bay F, Rosch R, Windeler J, Herfarth C (2000) Effect of pressure and gas type on intraabdominal, subcutaneous, and blood pH in laparoscopy. Surg Endosc 14:367–371PubMedCrossRef
28.
go back to reference Molinas CR, Koninckx PR (2000) Hypoxaemia induced by CO(2) or helium pneumoperitoneum is a co-factor in adhesion formation in rabbits. Hum Reprod 15:1758–1763PubMedCrossRef Molinas CR, Koninckx PR (2000) Hypoxaemia induced by CO(2) or helium pneumoperitoneum is a co-factor in adhesion formation in rabbits. Hum Reprod 15:1758–1763PubMedCrossRef
29.
go back to reference Ordonez JL, Dominguez J, Evrard V, Koninckx PR (1997) The effect of training and duration of surgery on adhesion formation in the rabbit model. Hum Reprod 12:2654–2657PubMedCrossRef Ordonez JL, Dominguez J, Evrard V, Koninckx PR (1997) The effect of training and duration of surgery on adhesion formation in the rabbit model. Hum Reprod 12:2654–2657PubMedCrossRef
30.
go back to reference Yesildaglar N, Ordonez JL, Laermans I, Koninckx PR (1999) The mouse as a model to study adhesion formation following endoscopic surgery: a preliminary report. Hum Reprod 14:55–59PubMedCrossRef Yesildaglar N, Ordonez JL, Laermans I, Koninckx PR (1999) The mouse as a model to study adhesion formation following endoscopic surgery: a preliminary report. Hum Reprod 14:55–59PubMedCrossRef
31.
go back to reference Dijkstra FR, Nieuwenhuijzen M, Reijnen MM, van Goor H (2000) Recent clinical developments in pathophysiology, epidemiology, diagnosis and treatment of intra-abdominal adhesions. Scand J Gastroenterol Suppl (232):52–59 Dijkstra FR, Nieuwenhuijzen M, Reijnen MM, van Goor H (2000) Recent clinical developments in pathophysiology, epidemiology, diagnosis and treatment of intra-abdominal adhesions. Scand J Gastroenterol Suppl (232):52–59
32.
go back to reference Canis M, Matsuzaki S, Bourdel N, Jardon K, Cotte B, Botchorishvili R, Rabischong B, Mage G (2007) Peritoneum and laparoscopic environment. Bull Cancer 94:1043–1051PubMed Canis M, Matsuzaki S, Bourdel N, Jardon K, Cotte B, Botchorishvili R, Rabischong B, Mage G (2007) Peritoneum and laparoscopic environment. Bull Cancer 94:1043–1051PubMed
33.
go back to reference Binda MM, Molinas CR, Hansen P, Koninckx PR (2006) Effect of desiccation and temperature during laparoscopy on adhesion formation in mice. Fertil Steril 86:166–175PubMedCrossRef Binda MM, Molinas CR, Hansen P, Koninckx PR (2006) Effect of desiccation and temperature during laparoscopy on adhesion formation in mice. Fertil Steril 86:166–175PubMedCrossRef
34.
go back to reference Volz J, Koster S, Weiss M, Schmidt R, Urbaschek R, Melchert F, Albrecht M (1996) Pathophysiologic features of a pneumoperitoneum at laparoscopy: a swine model. Am J Obstet Gynecol 174:132–140PubMedCrossRef Volz J, Koster S, Weiss M, Schmidt R, Urbaschek R, Melchert F, Albrecht M (1996) Pathophysiologic features of a pneumoperitoneum at laparoscopy: a swine model. Am J Obstet Gynecol 174:132–140PubMedCrossRef
35.
go back to reference West MA, Hackam DJ, Baker J, Rodriguez JL, Bellingham J, Rotstein OD (1997) Mechanism of decreased in vitro murine macrophage cytokine release after exposure to carbon dioxide: relevance to laparoscopic surgery. Ann Surg 226:179–190PubMedCrossRef West MA, Hackam DJ, Baker J, Rodriguez JL, Bellingham J, Rotstein OD (1997) Mechanism of decreased in vitro murine macrophage cytokine release after exposure to carbon dioxide: relevance to laparoscopic surgery. Ann Surg 226:179–190PubMedCrossRef
36.
go back to reference Taskin O, Buhur A, Birincioglu M, Burak F, Atmaca R, Yilmaz I, Wheeler JM (1998) The effects of duration of CO2 insufflation and irrigation on peritoneal microcirculation assessed by free radical scavengers and total glutathione levels during operative laparoscopy. J Am Assoc Gynecol Laparosc 5:129–133PubMedCrossRef Taskin O, Buhur A, Birincioglu M, Burak F, Atmaca R, Yilmaz I, Wheeler JM (1998) The effects of duration of CO2 insufflation and irrigation on peritoneal microcirculation assessed by free radical scavengers and total glutathione levels during operative laparoscopy. J Am Assoc Gynecol Laparosc 5:129–133PubMedCrossRef
37.
go back to reference Taskin O, Sadik S, Onoglu A, Gokdeniz R, Yilmaz I, Burak F, Wheeler JM (1999) Adhesion formation after microlaparoscopic and laparoscopic ovarian coagulation for polycystic ovary disease. J Am Assoc Gynecol Laparosc 6:159–163PubMedCrossRef Taskin O, Sadik S, Onoglu A, Gokdeniz R, Yilmaz I, Burak F, Wheeler JM (1999) Adhesion formation after microlaparoscopic and laparoscopic ovarian coagulation for polycystic ovary disease. J Am Assoc Gynecol Laparosc 6:159–163PubMedCrossRef
38.
go back to reference Bonfield TL, Colton E, Marchant RE, Anderson JM (1992) Cytokine and growth factor production by monocytes/macrophages on protein preabsorbed polymers. J Biomed Mater Res 26:837–850PubMedCrossRef Bonfield TL, Colton E, Marchant RE, Anderson JM (1992) Cytokine and growth factor production by monocytes/macrophages on protein preabsorbed polymers. J Biomed Mater Res 26:837–850PubMedCrossRef
39.
go back to reference Bellon JM, Bujan J, Contreras L, Hernando A, Jurado F (1994) Macrophage response to experimental implantation of polypropylene prostheses. Eur Surg Res 26:46–53PubMed Bellon JM, Bujan J, Contreras L, Hernando A, Jurado F (1994) Macrophage response to experimental implantation of polypropylene prostheses. Eur Surg Res 26:46–53PubMed
40.
go back to reference Klosterhalfen B, Hermanns B, Rosch R, Junge K (2003) Biological response on mesh. Eur Surg 35:21–24CrossRef Klosterhalfen B, Hermanns B, Rosch R, Junge K (2003) Biological response on mesh. Eur Surg 35:21–24CrossRef
41.
go back to reference Jackson PG, Evans SR (2000) Intraperitoneal macrophages and tumor immunity: a review. J Surg Oncol 75:146–154PubMedCrossRef Jackson PG, Evans SR (2000) Intraperitoneal macrophages and tumor immunity: a review. J Surg Oncol 75:146–154PubMedCrossRef
42.
go back to reference Rosch R, Junge K, Schachtrupp A, Klinge U, Klosterhalfen B, Schumpelick V (2003) Mesh implants in hernia repair. Inflammatory cell response in a rat model. Eur Surg Res 35:161–166PubMedCrossRef Rosch R, Junge K, Schachtrupp A, Klinge U, Klosterhalfen B, Schumpelick V (2003) Mesh implants in hernia repair. Inflammatory cell response in a rat model. Eur Surg Res 35:161–166PubMedCrossRef
43.
44.
go back to reference Junge K, Rosch R, Bialasinski L, Klinge U, Klosterhalfen B, Schumpelick V (2003) Persistent extracellular matrix remodelling at the interface to polymers used for hernia repair. Eur Surg Res 35:497–504PubMedCrossRef Junge K, Rosch R, Bialasinski L, Klinge U, Klosterhalfen B, Schumpelick V (2003) Persistent extracellular matrix remodelling at the interface to polymers used for hernia repair. Eur Surg Res 35:497–504PubMedCrossRef
45.
go back to reference Saarialho-Kere UK, Kovacs SO, Pentland AP, Olerud JE, Welgus HG, Parks WC (1993) Cell–matrix interactions modulate interstitial collagenase expression by human keratinocytes actively involved in wound healing. J Clin Invest 92:2858–2866PubMedCrossRef Saarialho-Kere UK, Kovacs SO, Pentland AP, Olerud JE, Welgus HG, Parks WC (1993) Cell–matrix interactions modulate interstitial collagenase expression by human keratinocytes actively involved in wound healing. J Clin Invest 92:2858–2866PubMedCrossRef
46.
go back to reference Vaalamo M, Karjalainen-Lindsberg ML, Puolakkainen P, Kere J, Saarialho-Kere U (1998) Distinct expression profiles of stromelysin-2 (MMP-10), collagenase-3 (MMP-13), macrophage metalloelastase (MMP-12), and tissue inhibitor of metalloproteinases-3 (TIMP-3) in intestinal ulcerations. Am J Pathol 152:1005–1014PubMed Vaalamo M, Karjalainen-Lindsberg ML, Puolakkainen P, Kere J, Saarialho-Kere U (1998) Distinct expression profiles of stromelysin-2 (MMP-10), collagenase-3 (MMP-13), macrophage metalloelastase (MMP-12), and tissue inhibitor of metalloproteinases-3 (TIMP-3) in intestinal ulcerations. Am J Pathol 152:1005–1014PubMed
47.
go back to reference Uitto J, Perejda AJ, Abergel RP, Chu ML, Ramirez F (1985) Altered steady-state ratio of type I/III procollagen mRNAs correlates with selectively increased type I procollagen biosynthesis in cultured keloid fibroblasts. Proc Natl Acad Sci USA 82:5935–5939PubMedCrossRef Uitto J, Perejda AJ, Abergel RP, Chu ML, Ramirez F (1985) Altered steady-state ratio of type I/III procollagen mRNAs correlates with selectively increased type I procollagen biosynthesis in cultured keloid fibroblasts. Proc Natl Acad Sci USA 82:5935–5939PubMedCrossRef
48.
go back to reference Friedman DW, Boyd CD, Mackenzie JW, Norton P, Olson RM, Deak SB (1993) Regulation of collagen gene expression in keloids and hypertrophic scars. J Surg Res 55:214–222PubMedCrossRef Friedman DW, Boyd CD, Mackenzie JW, Norton P, Olson RM, Deak SB (1993) Regulation of collagen gene expression in keloids and hypertrophic scars. J Surg Res 55:214–222PubMedCrossRef
49.
go back to reference Paraskeva PA, Ridgway PF, Jones T, Smith A, Peck DH, Darzi AW (2005) Laparoscopic environmental changes during surgery enhance the invasive potential of tumours. Tumour Biol 26:94–102PubMedCrossRef Paraskeva PA, Ridgway PF, Jones T, Smith A, Peck DH, Darzi AW (2005) Laparoscopic environmental changes during surgery enhance the invasive potential of tumours. Tumour Biol 26:94–102PubMedCrossRef
Metadata
Title
Impact of pressure and gas type on adhesion formation and biomaterial integration in laparoscopy
Authors
R. Rosch
M. Binnebösel
C. D. Klink
J. Otto
K. Junge
U. P. Neumann
Publication date
01-11-2011
Publisher
Springer-Verlag
Published in
Surgical Endoscopy / Issue 11/2011
Print ISSN: 0930-2794
Electronic ISSN: 1432-2218
DOI
https://doi.org/10.1007/s00464-011-1766-2

Other articles of this Issue 11/2011

Surgical Endoscopy 11/2011 Go to the issue