The aim of this study was to investigate the effectiveness of a synthetic polyethy lenglycol (PEG) sealant to prevent lymphocele formation after kidney transplantation. The examined group consisted of 719 recipients including 294 female and 425 male who were immunosuppressed with a calcineurin inhibitor, plus basiliximab since 1999, and with mycophenolate mofetil in addition since 2000. We retrospectively analyzed the incidence of lymphoceles among 545 recipients operated between November 1999 and November 2007 (group I), 93 recipients at standard risk for lymphocele transplanted between December 2007 and December 2009 (group II) in whom we performed only routine ligation of the lymphatic vessels during preparation of the graft, and 31 patients also transplanted between December 2007 and December 2009 who were at higher risk for lymphocele (group III) and underwent an off-label application of the PEG sealant. There was no significant difference in patient demographic features among the groups. In total, 21 group I, patients (3.5%) developed symptoms of a lymphocele that required ≥1 corrective procedures, whereas only 1 group II patient (1.07%) developed a lymphocele and no group III patient evidenced a symptomatic lymphocele. No adverse events were observed among group III patients after PEG sealant application. although the preliminary results are interesting, a prospective randomized study is required to assess the cost-effectiveness of PEG sealant to prevent lymphocele formation.
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http://dx.doi.org/10.1016/j.transproceed.2011.03.049 | DOI Listing |
Adv Healthc Mater
November 2024
Department of Orthopaedic, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 Xianxia Road, Shanghai, 200336, China.
Discectomy serves as the primary therapeutic approach for lumbar disc herniation, but the annular fibrosus defects after discectomy may lead to recurrence of disc herniation. Despite recent advances in bioinspired adhesives to seal the AF defect, the growing popularity of endoscopic discectomy has put forward high requirements for the tissue bioadhesives with rapid injectability, easy operation, and robust tissue adhesion in underwater environments. Herein, a rapidly in situ forming injectable tetra-PEG bioadhesive (ISG) comprising of FDA-approved tetra-armed poly (ethylene glycol) amine (tetra-PEG-NH) and tetra-armed poly (ethylene glycol) succinimidyl glutarate (tetra-PEG-SG) for the sutureless closure of AF defects, is reported.
View Article and Find Full Text PDFInt J Biol Macromol
November 2024
Department of Chemistry, School of Sciences and Engineering, The American University in Cairo, AUC Avenue, New Cairo 11835, Egypt. Electronic address:
Uncontrolled hemorrhage remains a critical threat in trauma and surgery. This study developed a novel hemostatic composite by encapsulating Peganum harmala L. seed extract (PH) with known hemostatic properties into lipid nanocapsules (PH-LNCs) and then embedding them within a polyvinyl alcohol-chitosan-polyethylene glycol-glycerol (PVA-CS-PEG-G) matrix.
View Article and Find Full Text PDFBiomater Adv
January 2025
Biomaterials field, Research Center for Macromolecules and Biomaterials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan; Graduate School of Science and Technology, Degree Programs in Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan. Electronic address:
Uncontrollable hemorrhage from trauma and open surgery leads to a high percentage of death. Even though some patch-type hemostatic materials have been used in the clinic, sufficient tissue adhesion property and the management of tissue adhesion and anti-adhesion have been the challenges. In this report, we designed Janus tissue adhesive hemostatic patch, consisting of Alaska pollock gelatin (Org-ApGltn) as a support layer and decanoyl group-modified ApGltn (C10-ApGltn) with pentaerythritol poly(ethylene glycol) ether tetrasuccinimidyl glutarate (4S-PEG) as an adhesive layer, named as the C10-ApGltn patch.
View Article and Find Full Text PDFJTCVS Tech
August 2024
Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
Objective: Surgical sealant, which is used for the reinforcement of suture lines, has been widely used in lung-resection surgeries with the aim of reducing postoperative morbidity; however, it may exacerbate surgical-site adhesion, creating the risks of restrictive thoracic movement and a difficult entrance for redo operation. We aimed to assess the pleural adhesive effects of 3 frequently used surgical sealants, (1) fibrin glue (fibrin), (2) a composite of polyethylene glycol and human serum albumin (PEG/HSA), and (3) bioabsorbable polyglycolic acid felt (PGA), in an in vivo setting.
Methods: Eighty-one rats were randomly assigned to 3 experimental groups-fibrin, PEG/HSA, and PGA.
ACS Biomater Sci Eng
May 2024
Center for Disease Biology and Integrative Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
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