Endoscopic ultrasonography-guided poly (lactic acid-co-glycolic acid)-poly (ethylene glycol)-poly (lactic acid-co-glycolic acid) thermogel tunnel creation for natural orifice transluminal endoscopic surgery in porcine model

Simple item page
dc.contributor.authorSun, Xiaotianen_US
dc.contributor.authorYu, Linen_US
dc.contributor.authorZhu, Jianbinen_US
dc.contributor.authorZu, Shengzhouen_US
dc.contributor.authorDing, Jiandongen_US
dc.contributor.authorLiu, Yanen_US
dc.date.accessioned2020-11-18T10:07:38Z
dc.date.available2020-11-18T10:07:38Z
dc.date.issued2019-04
dc.description.abstractBackground: Natural orifice transluminal endoscopic surgery (NOTES) is a minimal invasive treatment. However, tissue dissection under endoscopy is still challenging due to the flexibility of endoscopy body and there is still no effective method for establishing a tunnel towards the targeted area. We previously showed that a new kind of thermogel could be submucosallly injected and served as a cushion for endoscopic dissection. Thus, in this study we investigated the feasibility and safety of tunnel creation using poly (lactic acid-co-glycolic acid)-poly (ethylene glycol)-poly (lactic acid-co-glycolic acid) (PLGA-PEG-PLGA) thermogel for NOTES in a porcine model. Methods: We prepared an injectable thermogel composed of PLGA-PEG-PLGA triblock copolymers which exhibited a low-viscous sol at room temperature and spontaneously transformed into a no-flowing gel at body temperature. This thermogel was used in NOTES in pigs. The success rate and adverse events were observed. Results: The PLGA-PEG-PLGA thermogels were successfully injected to the targeted areas under the guide of endoscopic ultrasonography and the tunnels were created by sucking the gel during NOTES as the endoscopy went forwards in all the three animals. The necropsy of the pigs showed no evidence of iatrogenic injury. No serious bleeding and perforation was observed. The results demonstrated that thermogel injection and tunnel creation by suction during NOTES were feasible, which simplified the procedure of tissue dissection and developed a new method of identifying the targeted area for surgical interventions without causing severe tissue damage. Conclusion: The application of thermogel for tunnel creation in NOTES could optimize current procedures and may have a promising prospect in clinical applicationen_US
dc.identifier.affiliationsDepartment of Gastroenterology, 307 Hospital of PLA; Department of Internal Medicine, Clinic of August First Film Studio, Beijing, Chinaen_US
dc.identifier.affiliationsDepartment of Macromolecular Science, State Key Laboratory of Molecular Engineering of Polymers, Advanced Materials Laboratory; Key Laboratory of Smart Drug Delivery of Ministry of Education and PLA, School of Pharmacy, Fudan University, Shanghai, Chinaen_US
dc.identifier.affiliationsDepartment of Gastroenterology, The People's Hospital of Wuhai, Wuhai, Chinaen_US
dc.identifier.affiliationsDepartment of Internal Medicine, Clinic of August First Film Studio, Beijing, Chinaen_US
dc.identifier.affiliationsDepartment of Macromolecular Science, State Key Laboratory of Molecular Engineering of Polymers, Advanced Materials Laboratory; Key Laboratory of Smart Drug Delivery of Ministry of Education and PLA, School of Pharmacy, Fudan University, Shanghai, Chinaen_US
dc.identifier.affiliationsDepartment of Gastroenterology, 307 Hospital of PLA, Beijing, Chinaen_US
dc.identifier.citationSun Xiaotian, Yu Lin, Zhu Jianbin, Zu Shengzhou, Ding Jiandong, Liu Yan. Endoscopic ultrasonography-guided poly (lactic acid-co-glycolic acid)-poly (ethylene glycol)-poly (lactic acid-co-glycolic acid) thermogel tunnel creation for natural orifice transluminal endoscopic surgery in porcine model. Journal of Cancer Research and Therapeutics. 2019 Apr; 15(2): 415-419en_US
dc.identifier.issn0973-1482
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/213634
dc.languageenen_US
dc.publisherWolters Kluwer India Pvt. Ltd.en_US
dc.relation.issuenumber2en_US
dc.relation.volume15en_US
dc.source.urihttps://dx.doi.org//10.4103/jcrt.JCRT_400_18en_US
dc.subjectEfficacyen_US
dc.subjectnatural orifice transluminal endoscopic surgeryen_US
dc.subjectsafetyen_US
dc.subjectthermogelen_US
dc.titleEndoscopic ultrasonography-guided poly (lactic acid-co-glycolic acid)-poly (ethylene glycol)-poly (lactic acid-co-glycolic acid) thermogel tunnel creation for natural orifice transluminal endoscopic surgery in porcine modelen_US
dc.typeJournal Articleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
ijcrt2019v15n2p415.pdf
Size:
826.03 KB
Format:
Adobe Portable Document Format
Download
Collections
Journal of Cancer Research and Therapeutics