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Sampurno S, Chittleborough TJ, Carpinteri S, Hiller J, Heriot A, Lynch AC, Ramsay RG. Modes of carbon dioxide delivery during laparoscopy generate distinct differences in peritoneal damage and hypoxia in a porcine model. Surg Endosc 2020; 34:4395-4402. [PMID: 31624943 DOI: 10.1007/s00464-019-07213-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 10/09/2019] [Indexed: 01/25/2023]
Abstract
BACKGROUND Insufflation with CO2 can employ continuous flow, recirculated gas and/or additional warming and humidification. The ability to compare these modes of delivery depends upon the assays employed and opportunities to minimize subject variation. The use of pigs to train colorectal surgeons provided an opportunity to compare three modes of CO2 delivery under controlled circumstances. METHODS Sixteen pigs were subjected to rectal resection, insufflated with dry-cold CO2 (DC-CO2) (n = 5), recirculated CO2 by an AirSeal device (n = 5) and humidification and warming (HW-CO2) by a HumiGard device (n = 6). Peritoneal biopsies were harvested from the same region of the peritoneum for fixation for immunohistochemistry for hypoxia-inducible factor 1 alpha (HIF-1α) and scanning electron microscopy (SEM) to evaluate hypoxia induction or tissue/cellular damage, respectively. RESULTS DC-CO2 insufflation by both modes leads to significant damage to mesothelial cells as measured by cellular bulging and retraction as well as microvillus shortening compared with HW-CO2 at 1 to 1.5 h. DC-CO2 also leads to a rapid and significant induction of HIF-1α compared with HW-CO2. CONCLUSIONS DC-CO2 insufflation induces substantive cellular damage and hypoxia responses within the first hour of application. The use of HW-CO2 insufflation ameliorates these processes for the first one to one and half hours in a large mammal used to replicate surgery in humans.
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Affiliation(s)
- Shienny Sampurno
- Peter MacCallum Cancer Centre and The Sir Peter MacCallum, Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Timothy J Chittleborough
- Peter MacCallum Cancer Centre and The Sir Peter MacCallum, Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Sandra Carpinteri
- Peter MacCallum Cancer Centre and The Sir Peter MacCallum, Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Jonathan Hiller
- Peter MacCallum Cancer Centre and The Sir Peter MacCallum, Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Alexander Heriot
- Peter MacCallum Cancer Centre and The Sir Peter MacCallum, Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Andrew Craig Lynch
- Peter MacCallum Cancer Centre and The Sir Peter MacCallum, Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Robert George Ramsay
- Peter MacCallum Cancer Centre and The Sir Peter MacCallum, Department of Oncology, University of Melbourne, Melbourne, Australia. .,Differentiation and Transcription Laboratory, Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia.
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Corona R, Binda MM, Adamyan L, Gomel V, Koninckx PR. N 2O strongly prevents adhesion formation and postoperative pain in open surgery through a drug-like effect. ACTA ACUST UNITED AC 2017; 14:21. [PMID: 29170623 PMCID: PMC5676824 DOI: 10.1186/s10397-017-1024-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 10/25/2017] [Indexed: 11/17/2022]
Abstract
Background Microsurgical tenets and peritoneal conditioning during laparoscopic surgery (LS) decrease postoperative adhesions and pain. For a trial in human, the strong beneficial effects of N2O needed to be confirmed in open surgery (OS). Results In a mouse model for OS, the effect of the gas environment upon adhesions was evaluated. Experiment I evaluated desiccation and the duration of exposure to CO2, N2O or CO2 + 4%O2. Experiment II evaluated the dose-response curve of adding N2O to CO2. Experiment III compared humidified CO2 + 10% N2O during LS and OS. In OS, 30- and 60-min exposure to non-humidified CO2 caused mortality of 33 and 100%, respectively. Mortality was prevented by humidification, by dry N2O or dry CO2 + 4%O2. Adhesions increased with the duration of exposure to CO2 (p < 0.0001) and decreased slightly by humidification or by the addition of 4% O2. N2O strongly decreased adhesions at concentrations of 5% or greater. With humidified CO2 + 10% N2O, adhesion formation was similar in OS and LS. Conclusions The drug-like and strong beneficial effect of low concentrations of N2O is confirmed in OS.
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Affiliation(s)
- Roberta Corona
- Department of Obstetrics and Gynaecology, KU Leuven - Catholic University of Leuven, 3000 Leuven, Belgium.,Barbados Fertility Centre, Seaston House, Hastings, Barbados
| | - Maria Mercedes Binda
- Department of Obstetrics and Gynaecology, KU Leuven - Catholic University of Leuven, 3000 Leuven, Belgium
| | - Leila Adamyan
- Department of Reproductive Medicine and Surgery, Moscow State University of Medicine and Dentistry, Moscow, Russia
| | - Victor Gomel
- Department of Obstetrics and Gynecology, University of British Columbia, Women's Hospital, Vancouver, British Columbia Canada
| | - Philippe R Koninckx
- Department of Obstetrics and Gynaecology, KU Leuven - Catholic University of Leuven, 3000 Leuven, Belgium.,KU Leuven, Vuilenbosstraat 2, 3360 Bierbeek, Belgium
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Koninckx PR, Gomel V, Ussia A, Adamyan L. Role of the peritoneal cavity in the prevention of postoperative adhesions, pain, and fatigue. Fertil Steril 2016; 106:998-1010. [PMID: 27523299 DOI: 10.1016/j.fertnstert.2016.08.012] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 07/30/2016] [Accepted: 08/02/2016] [Indexed: 02/08/2023]
Abstract
A surgical trauma results within minutes in exudation, platelets, and fibrin deposition. Within hours, the denuded area is covered by tissue repair cells/macrophages, starting a cascade of events. Epithelial repair starts on day 1 and is terminated by day 3. If repair is delayed by decreased fibrinolysis, local inflammation, or factors in peritoneal fluid, fibroblast growth starting on day 3 and angiogenesis starting on day 5 results in adhesion formation. For adhesion formation, quantitatively more important are factors released into the peritoneal fluid after retraction of the fragile mesothelial cells and acute inflammation of the entire peritoneal cavity. This is caused by mechanical trauma, hypoxia (e.g., CO2 pneumoperitoneum), reactive oxygen species (ROS; e.g., open surgery), desiccation, or presence of blood, and this is more severe at higher temperatures. The inflammation at trauma sites is delayed by necrotic tissue, resorbable sutures, vascularization damage, and oxidative stress. Prevention of adhesion formation therefore consists of the prevention of acute inflammation in the peritoneal cavity by means of gentle tissue handling, the addition of more than 5% N2O to the CO2 pneumoperitoneum, cooling the abdomen to 30°C, prevention of desiccation, a short duration of surgery, and, at the end of surgery, meticulous hemostasis, thorough lavage, application of a barrier to injury sites, and administration of dexamethasone. With this combined therapy, nearly adhesion-free surgery can be performed today. Conditioning alone results in some 85% adhesion prevention, barriers alone in 40%-50%.
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Affiliation(s)
- Philippe R Koninckx
- Department of Obstetrics and Gynecology, Catholic University Leuven, University Hospital, Gasthuisberg, Leuven, Belgium; Gruppo Italo Belga, Villa del Rosario and Gemelli Hospitals Università Cattolica, Rome, Italy.
| | - Victor Gomel
- Department of Obstetrics and Gynecology, University of British Columbia, Women's Hospital, Vancouver, British Columbia, Canada
| | - Anastasia Ussia
- Gruppo Italo Belga, Villa del Rosario and Gemelli Hospitals Università Cattolica, Rome, Italy
| | - Leila Adamyan
- Department of Operative Gynecology, Federal State Budget Institution V. I. Kulakov Research Center for Obstetrics, Gynecology, and Perinatology, Ministry of Health of the Russian Federation, Moscow, Russia; Department of Reproductive Medicine and Surgery, Moscow State University of Medicine and Dentistry, Moscow, Russia, Russian Federation
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Ishii T, Igarashi T, Naya Y, Aoe T, Isono S. Physiological and Biochemical Responses to Continuous Saline Irrigation Inside the Abdominal Cavity in Anesthetized Pigs. J Laparoendosc Adv Surg Tech A 2016; 26:600-5. [PMID: 27195464 DOI: 10.1089/lap.2015.0463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Water-filled laparoendoscopic surgery (WaFLES) has been proposed as a novel surgical system achieving a wide surgical field in the intra- and extraperitoneal space with continuous irrigation of isotonic fluid into the field. Despite its technical feasibility and advantages, the safety of the technique, particularly with respect to physiological functions, has not been evaluated. METHODS Various types of minor abdominal surgeries were performed under general anesthesia in nine adult pigs either by conventional laparoscopy (n = 3) or WaFLES (n = 6). In addition to esophageal temperature and body weight, cardiorespiratory variables such as blood pressure, heart rate, and arterial blood gas parameters were compared before and after the surgeries. Blood samples were obtained for assessing changes in biochemical parameters before and after the surgeries. RESULTS Three to seven hours of various surgeries were completed without critical cardiorespiratory events in all animals. Oxygenation and ventilation were maintained regardless of the techniques used for the surgeries. A minor increase of body weight (2.5% of initial body weight), metabolic acidosis, hyperkalemia, and impaired hepatic function were observed after WaFLES surgeries. CONCLUSIONS The preliminary study indicated no serious immediate adverse effects of the WaFLES technique.
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Affiliation(s)
- Takuro Ishii
- 1 Center for Frontier Medical Engineering, Chiba University , Chiba, Japan
| | - Tatsuo Igarashi
- 1 Center for Frontier Medical Engineering, Chiba University , Chiba, Japan
| | - Yukio Naya
- 2 Department of Urology, Teikyo University Chiba Medical Center , Ichihara, Japan
| | - Tomohiko Aoe
- 3 Department of Anesthesiology, Teikyo University Chiba Medical Center , Ichihara, Japan
| | - Shiroh Isono
- 4 Department of Anesthesiology, Graduate School of Medicine, Chiba University , Chiba, Japan
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Binda MM. Humidification during laparoscopic surgery: overview of the clinical benefits of using humidified gas during laparoscopic surgery. Arch Gynecol Obstet 2015; 292:955-71. [PMID: 25911545 PMCID: PMC4744605 DOI: 10.1007/s00404-015-3717-y] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 04/02/2015] [Indexed: 12/21/2022]
Abstract
PURPOSE The peritoneum is the serous membrane that covers the abdominal cavity and most of the intra-abdominal organs. It is a very delicate layer highly susceptible to damage and it is not designed to cope with variable conditions such as the dry and cold carbon dioxide (CO2) during laparoscopic surgery. The aim of this review was to evaluate the effects caused by insufflating dry and cold gas into the abdominal cavity after laparoscopic surgery. METHODS A literature search using the Pubmed was carried out. Articles identified focused on the key issues of laparoscopy, peritoneum, morphology, pneumoperitoneum, humidity, body temperature, pain, recovery time, post-operative adhesions and lens fogging. RESULTS Insufflating dry and cold CO2 into the abdomen causes peritoneal damage, post-operative pain, hypothermia and post-operative adhesions. Using humidified and warm gas prevents pain after surgery. With regard to hypothermia due to desiccation, it can be fully prevented using humidified and warm gas. Results relating to the patient recovery are still controversial. CONCLUSIONS The use of humidified and warm insufflation gas offers a significant clinical benefit to the patient, creating a more physiologic peritoneal environment and reducing the post-operative pain and hypothermia. In animal models, although humidified and warm gas reduces post-operative adhesions, humidified gas at 32 °C reduced them even more. It is clear that humidified gas should be used during laparoscopic surgery; however, a question remains unanswered: to achieve even greater clinical benefit to the patient, at what temperature should the humidified gas be when insufflated into the abdomen? More clinical trials should be performed to resolve this query.
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Affiliation(s)
- Maria Mercedes Binda
- Institut de Recherche Expérimentale et Clinique (IREC), Pôle de Gynécologie, Avenue Mounier 52, bte B1.52.02, 1200, Brussels, Belgium.
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Xu D, Lin WH, Xu M, Gu DD, Zheng FY, Tu JF. Implementation of Standardized Perioperative Care for Laparoscopic Roux-en-Y Gastric Bypass in a New Program at a Chinese Hospital. Bariatr Surg Pract Patient Care 2015. [DOI: 10.1089/bari.2014.0043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Affiliation(s)
- Duo Xu
- Operation Room, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, P.R. China
| | - Wei-Hong Lin
- Operation Room, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, P.R. China
| | - Min Xu
- Operation Room, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, P.R. China
| | - Di-Dan Gu
- Operation Room, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, P.R. China
| | - Feng-Yan Zheng
- Operation Room, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, P.R. China
| | - Jin-Fu Tu
- Department of Laparoscopy, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, P.R. China
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Conditioning of the abdominal cavity reduces tumor implantation in a laparoscopic mouse model. Surg Today 2014; 44:1328-35. [PMID: 24452508 PMCID: PMC4055846 DOI: 10.1007/s00595-014-0832-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Accepted: 06/04/2013] [Indexed: 01/27/2023]
Abstract
Purpose The addition of 4 % O2 and 10 % N2O to the CO2 pneumoperitoneum (PP), together with slight cooling and humidification (conditioning), contributes to reducing adhesions by preventing mesothelial damage. We investigated the effect of peritoneal damage during laparoscopy on tumor implantation. Methods In Experiment 1, different tumor cell concentrations were injected into control mice without PP and into mice with 60-min dry CO2PP (mesothelial damage). In Experiment 2, tumor cells were injected into control mice (group I) and in mice with mesothelial damage (group II). In groups III to VI, mesothelial damage was decreased by adding humidification, humidification + 10 % N2O, humidification + 10 % N2O + 4 % O2, and conditioning, respectively. Results In Experiment 1, the tumors increased with the number of cells injected and with mesothelial damage in the abdominal cavity (p = 0.018) and abdominal wall (p < 0.0001). Experiment 2 confirmed that 60 min of dry CO2PP increased the number of tumors in the abdominal cavity and wall (p = 0.026 and p = 0.003, respectively). The number of tumors was decreased in the abdominal cavity by conditioning (p = 0.030) and in the abdominal wall using humidified CO2 (p = 0.032) or conditioning (p = 0.026). Conclusions Tumor implantation was enhanced by peritoneal damage (60 min of dry CO2PP and desiccation), but this was prevented by conditioning. If confirmed in humans, conditioning would become important for oncologic surgery.
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Pérez-Medina T, Álvarez J, Degollada M, de Santiago J, Lara A, Pascual A, Pérez Milán F, Crowe AM. Documento de consenso del Grupo de Trabajo sobre las Adherencias de la sección de endoscopia de la SEGO. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.pog.2010.07.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Application of stereology to study the effects of pneumoperitoneum on peritoneum. Surg Endosc 2010; 25:619-27. [PMID: 20625769 DOI: 10.1007/s00464-010-1235-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2009] [Accepted: 06/14/2010] [Indexed: 10/19/2022]
Abstract
BACKGROUND Scanning electron microscopy is unable to provide sufficient data to obtain definitive results for research into the morphologic effect of pneumoperitoneum on peritoneum. To overcome this difficulty, we adopted stereology to examine the effect of the type of gas insufflated, pressure, duration, and gas flow on morphologic alterations of peritoneum. METHODS Fifty SD rats were divided into ten groups. One group served as control. Pneumoperitoneum was established at 5 mmHg and 1.0 l/min gas flow for 1, 2 or 3 h with CO2 (in groups C1h, C2h, and C3h, respectively) or with He (in groups H1h, H2h, and H3h, respectively). CO2 pneumoperitoneum was further established at 8 mmHg and 1.0 l/min gas flow for 1 h (group C8p), at 5 mmHg and 2.0 l/min gas flow for 1 h (group C2f), and at 5 mmHg and 3.0 l/min gas flow for 1 h (group C3f). After the procedures, five specimens were sampled from anterior peritoneum and measured by stereological and electron-microscopic techniques. RESULTS Groups H1h and C1h, H2h and C2h, and H3h and C3h, respectively, were the same in terms of area fraction of basal lamina exposed and diameter of mesothelial cells (P>0.05). The magnitudes of peritoneal trauma in groups C2h, C3h, C8p, C2f, and C3f were significantly higher than that in group C1h (P<0.01), and the same result was observed in groups H2h and H3h against group H1h (P<0.01), and in group C3f against group C2f (P<0.01). Furthermore, the area fractions of basal lamina exposed in groups C3h and H3h were remarkably higher than those in groups C2h and H2h, respectively (P<0.01). The mechanism of basal lamina exposure comprises mesothelial cell desquamation and plasmatorrhexis. CONCLUSIONS Peritoneal morphologic trauma during pneumoperitoneum can be attributed to the pressure, duration, and gas flow instead of the type of gas insufflated.
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Peritoneal damage: the inflammatory response and clinical implications of the neuro-immuno-humoral axis. World J Surg 2010; 34:704-20. [PMID: 20049432 DOI: 10.1007/s00268-009-0382-y] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND The peritoneum is a bilayer serous membrane that lines the abdominal cavity. We present a review of peritoneal structure and physiology, with a focus on the peritoneal inflammatory response to surgical injury and its clinical implications. METHODS We conducted a nonsystematic clinical review. A search of the Ovid MEDLINE database from 1950 through January 2009 was performed using the following search terms: peritoneum, adhesions, cytokine, inflammation, and surgery. RESULTS The peritoneum is a metabolically active organ, responding to insult through a complex array of immunologic and inflammatory cascades. This response increases with the duration and extent of injury and is central to the concept of surgical stress, manifesting via a combination of systemic effects, and local neural pathways via the neuro-immuno-humoral axis. There may be a decreased systemic inflammatory response after minimally invasive surgery; however, it is unclear whether this is due to a reduced local peritoneal reaction. CONCLUSIONS Interventions that dampen the peritoneal response and/or block the neuro-immuno-humoral pathway should be further investigated as possible avenues of enhancing recovery after surgery, and reducing postoperative complications.
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Carbon dioxide pneumoperitoneum, intraperitoneal pressure, and peritoneal tissue hypoxia: a mouse study with controlled respiratory support. Surg Endosc 2010; 24:2871-80. [DOI: 10.1007/s00464-010-1069-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2009] [Accepted: 04/02/2010] [Indexed: 11/25/2022]
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Binda MM, Koninckx PR. Hyperoxia and prevention of adhesion formation: a laparoscopic mouse model for open surgery. BJOG 2009; 117:331-9. [DOI: 10.1111/j.1471-0528.2009.02370.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Binda MM, Koninckx PR. Prevention of adhesion formation in a laparoscopic mouse model should combine local treatment with peritoneal cavity conditioning. Hum Reprod 2009; 24:1473-9. [PMID: 19258346 DOI: 10.1093/humrep/dep053] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Adhesion formation results from a series of local events at the trauma site. This process can be enhanced by factors derived from the peritoneal cavity such as mesothelial cell hypoxia (pneumoperitoneum with pure CO(2)), reactive oxygen species (pneumoperitoneum with more than 4% oxygen), desiccation and mesothelial trauma produced through manipulation. Adhesion prevention, therefore, should combine local treatment while minimizing adverse peritoneal factors through conditioning of the pneumoperitoneum. METHODS In a laparoscopic mouse model, adhesion induction comprised a mechanical lesion together with a humidified pneumoperitoneum for 60 min with pure CO(2) at 37 degrees C. Adhesion prevention consisted of a combination of treatments known to reduce adhesions, i.e. pneumoperitoneum with CO(2) with the addition of 3-4% O(2), reduction of body temperature (BT) to 32 degrees C and application of antiadhesion products such as anti-inflammatory drugs (dexamethasone, nimesulide), calcium-channel blockers (diltiem), surfactants (phospholipids), barriers (Hyalobarrier gel), reactive oxygen species scavengers (superoxide dismutase and ascorbic acid) and recombinant plasminogen activator. RESULTS The addition of 3% O(2) to the pneumoperitoneum or a lower BT decreased adhesions by 32% or 48%, respectively (P < 0.05, Wilcoxon), but were without additional effects when combined. In addition, if dexamethasone or Hyalobarrier((R)) gel were administrated, the total reduction was 76% (P = 0.04) or 85% (P < 0.02), respectively. CONCLUSIONS Combining pneumoperitoneum conditioning together with dexamethasone or a barrier resulted in significant adhesion reduction in a laparoscopic mouse model.
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Affiliation(s)
- M M Binda
- Department of Obstetrics and Gynaecology, University Hospital Gasthuisberg, Katholieke Universiteit Leuven, Leuven, Belgium.
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Mynbaev OA, Corona R. Possible mechanisms of peritoneal tissue-oxygen tension changes during CO2-pneumoperitoneum: the role of design, methodology and animal models. Hum Reprod 2009; 24:1242-6. [PMID: 19258347 DOI: 10.1093/humrep/dep025] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Affiliation(s)
- Ospan A Mynbaev
- Moscow State University of Medicine and Dentistry, Delegatskaya str. 20/1 127473, Moscow, Russian Federation.
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Effect of Reteplase™ and PAI-1 antibodies on postoperative adhesion formation in a laparoscopic mouse model. Surg Endosc 2008; 23:1018-25. [DOI: 10.1007/s00464-008-0111-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2008] [Revised: 06/21/2008] [Accepted: 07/20/2008] [Indexed: 11/26/2022]
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Nappi C, Di Spiezio Sardo A, Greco E, Guida M, Bettocchi S, Bifulco G. Prevention of adhesions in gynaecological endoscopy. Hum Reprod Update 2007; 13:379-94. [PMID: 17452399 DOI: 10.1093/humupd/dml061] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Adhesions resulting from gynaecological endoscopic procedures are a major clinical, social and economic concern, as they may result in pelvic pain, infertility, bowel obstruction and additional surgery to resolve such adhesion-related complications. Although the minimally invasive endoscopic approach has been shown to be less adhesiogenic than traditional surgery, at least with regard to selected procedures, it does not totally eliminate the problem. Consequently, many attempts have been made to further reduce adhesion formation and reformation following endoscopic procedures, and a wide variety of strategies, including surgical techniques, pharmacological agents and mechanical barriers have been advocated to address this issue. The present review clearly indicates that there is no single modality proven to be unequivocally effective in preventing post-operative adhesion formation either for laparoscopic or for hysteroscopic surgery. Furthermore, the available adhesion-reducing substances are rather expensive. Since excellent surgical technique alone seems insufficient, further research is needed on an adjunctive therapy for the prevention and/or reduction of adhesion formation following gynaecological endoscopic procedures.
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Affiliation(s)
- C Nappi
- Department of Gynaecology and Obstetrics, and Pathophysiology of Human Reproduction, University of Naples 'Federico II', Via Pansini 5, Naples, Italy
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Bourdel N, Matsuzaki S, Bazin JE, Pouly JL, Mage G, Canis M. Peritoneal tissue-oxygen tension during a carbon dioxide pneumoperitoneum in a mouse laparoscopic model with controlled respiratory support. Hum Reprod 2007; 22:1149-55. [PMID: 17208946 DOI: 10.1093/humrep/del482] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Previous animal studies suggested that the peritoneal environment during a carbon dioxide (CO(2)) pneumoperitoneum is hypoxic and that this may contribute to the formation of intra-abdominal adhesions or the growth of malignant cells. There is no study, however, that investigates the relationship between anaesthesia, ventilation and the laparoscopic peritoneal environment to the development of hypoxia. The objective of this study is to monitor the peritoneal tissue-oxygen tension (PitO(2)) under various conditions including anaesthesia alone, during a CO(2) pneumoperitoneum at both low and high intraperitoneal pressure (IPP), and laparotomy, in animal models with controlled respiratory support (CRS). METHODS C57BL6 mice were divided into eight groups (n = 5) consisting of anaesthesia alone or with CO(2) pneumoperitoneum at low (2 mmHg) or high (8 mmHg) IPP or undergoing laparotomy. Groups were further subdivided into those with or without CRS with endotracheal intubation and mechanical ventilation. Over the course of the 1 h procedure, PitO(2) was continuously monitored. RESULTS Protocol 1. The PitO(2) levels (104.2 +/- 7.8 mmHg, mean +/- SEM) in non-injured peritoneum during a CO(2) pneumoperitoneum at a low IPP were elevated approximately 2-fold over the levels during laparotomy (49.8 +/- 15.0 mmHg) in ventilated mice. Protocol 2. After insufflation with CO(2), the PitO(2) was immediately elevated and maintained at a higher level. Following laparotomy, it decreased immediately. This elevation was not seen with air insufflation. CONCLUSION In mice, a significant elevation in PitO(2) occurs during a CO(2) pneumoperitoneum at low IPP with CRS.
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Affiliation(s)
- Nicolas Bourdel
- Université d'Auvergne - Clermont I, Centre d'Endoscopie et des Nouvelles Techniques Interventionnelles (CENIT), Faculté de Médecine, Clermont-Ferrand, France
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Alpay Z, Saed GM, Diamond MP. Female infertility and free radicals: potential role in adhesions and endometriosis. ACTA ACUST UNITED AC 2006; 13:390-8. [PMID: 16872846 DOI: 10.1016/j.jsgi.2006.05.002] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2006] [Indexed: 01/28/2023]
Abstract
Free radicals are highly reactive molecules produced in the cell either as part of, or as end-products of, biochemical reactions that have crucial roles in the homeostasis of the organism. Thus, excess production or impaired elimination of free radicals leads to increased oxidative stress, which has been implicated in the development of several different disease states, including hypoxia-reperfusion injury, cancer, and aging. Peritoneal adhesions and endometriosis are relatively commonly identified in women, and are known to be associated with infertility without clearly understood pathophysiology. The prevention and treatment strategies of these conditions, both of which have tremendous propensity to recur, have not been completely established. The development of both disorders has been shown to be closely related to the presence of increased oxidative stress in the tissues. In this article, we review this relationship with reference to the mechanistic steps involved and their regulation. As our knowledge of both conditions expands, we believe there will be opportunities for specific steps to intervention in free radical metabolism to reduce and/or prevent further development of endometriosis and adhesions.
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Affiliation(s)
- Zeynep Alpay
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, C.S. Mott Center for Human Growth and Development, Wayne State University, Detroit, Michigan 48201, USA
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Mynbaev OA. Re: The Addition of O2 to the CO2 Does not Prevent the Systemic Effects of the CO2 Pneumoperitoneum in a Rabbit Model. Surg Lap Endosc Percut Tech. 2005;15(5):271???274. Surg Laparosc Endosc Percutan Tech 2006; 16:123-5; author reply 125-6. [PMID: 16773021 DOI: 10.1097/00129689-200604000-00020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Molinas CR, Binda MM, Campo R, Koninckx PR. Adhesion formation and interanimal variability in a laparoscopic mouse model varies with strains. Fertil Steril 2006; 83:1871-4. [PMID: 15950670 DOI: 10.1016/j.fertnstert.2004.11.084] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2004] [Revised: 11/15/2004] [Accepted: 11/13/2004] [Indexed: 02/07/2023]
Abstract
Adhesion formation after laparoscopic surgery was evaluated in mice of different strains. More adhesions were observed in Swiss, NMRI, and BALB/c mice, with less interanimal variability in BALB/c mice. These data point to genetics effects on adhesion formation, which open new insights in its pathogenesis and indicate the importance of a careful strain selection for animal studies.
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Affiliation(s)
- Carlos Roger Molinas
- Laboratory of Experimental Gynecology, Department of Obstetrics and Gynecology, University Hospital Gasthuisberg, Katholieke Universiteit Leuven, Belgium.
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