Hu Xingyu, Grinstaff Mark W
Departments of Chemistry and Biomedical Engineering, Boston University, Boston, MA 02215, USA.
Gels. 2023 Mar 31;9(4):282. doi: 10.3390/gels9040282.
Millions of individuals undergo gastrointestinal (GI) tract surgeries each year with common postoperative complications including bleeding, perforation, anastomotic leakage, and infection. Today, techniques such as suturing and stapling seal internal wounds, and electrocoagulation stops bleeding. These methods induce secondary damage to the tissue and can be technically difficult to perform depending on the wound site location. To overcome these challenges and to further advance wound closure, hydrogel adhesives are being investigated to specifically target GI tract wounds because of their atraumatic nature, fluid-tight sealing capability, favorable wound healing properties, and facile application. However, challenges remain that limit their use, such as weak underwater adhesive strength, slow gelation, and/or acidic degradation. In this review, we summarize recent advances in hydrogel adhesives to treat various GI tract wounds, with a focus on novel material designs and compositions to combat the environment-specific challenges of GI injury. We conclude with a discussion of potential opportunities from both research and clinical perspectives.
每年有数以百万计的人接受胃肠道手术,常见的术后并发症包括出血、穿孔、吻合口漏和感染。如今,诸如缝合和钉合等技术用于封闭内部伤口,电凝用于止血。这些方法会对组织造成二次损伤,并且根据伤口部位的位置,在技术上可能难以实施。为了克服这些挑战并进一步推进伤口闭合,水凝胶粘合剂因其无创性质、液密密封能力、良好的伤口愈合特性以及易于应用而被研究用于专门针对胃肠道伤口。然而,仍然存在限制其使用的挑战,例如水下粘合强度弱、凝胶化缓慢和/或酸性降解。在这篇综述中,我们总结了水凝胶粘合剂在治疗各种胃肠道伤口方面的最新进展,重点关注新型材料设计和成分,以应对胃肠道损伤特定环境带来的挑战。我们从研究和临床角度讨论了潜在的机会作为总结。