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Say S, Suzuki M, Hashimoto Y, Kimura T, Kishida A. Investigation of anti-adhesion ability of 8-arm PEGNHS-modified porcine pericardium. Biomed Mater 2024; 19:035012. [PMID: 38422523 DOI: 10.1088/1748-605x/ad2ed3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 02/29/2024] [Indexed: 03/02/2024]
Abstract
In post-adhesion surgery, there is a clinical need for anti-adhesion membranes specifically designed for the liver, given the limited efficacy of current commercial products. To address this demand, we present a membrane suitable for liver surgery applications, fabricated through the modification of decellularized porcine pericardium with 20 KDa hexaglycerol octa (succinimidyloxyglutaryl) polyoxyethylene (8-arm PEGNHS). We also developed an optimized modification procedure to produce a high-performance anti-adhesion barrier. The modified membrane significantly inhibited fibroblast cell adherence while maintaining minimal levels of inflammation. By optimizing the modification ratio, we successfully controlled post-adhesion formation. Notably, the 8-arm PEG-modified pericardium with a molar ratio of 5 exhibited the ability to effectively prevent post-adhesion formation on the liver compared to both the control and Seprafilm®, with a low adhesion score of 0.5 out of 3.0. Histological analysis further confirmed its potential for easy separation. Furthermore, the membrane demonstrated regenerative capabilities, as evidenced by the proliferation of mesothelial cells on its surface, endowing anti-adhesion properties between the abdominal wall and liver. These findings highlight the membrane's potential as a reliable barrier for repeated liver resection procedures that require the removal of the membrane multiple times.
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Affiliation(s)
- Sreypich Say
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-Ku, Tokyo 101-0062, Japan
| | - Mika Suzuki
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-Ku, Tokyo 101-0062, Japan
| | - Yoshihide Hashimoto
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-Ku, Tokyo 101-0062, Japan
| | - Tsuyoshi Kimura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-Ku, Tokyo 101-0062, Japan
| | - Akio Kishida
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-Ku, Tokyo 101-0062, Japan
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Atthota S, MacDonald A, Ali A, Witkowski E, Dageforde LA. Bezoar at Jejunojejunostomy Following Liver Transplant: A Case Report. EXP CLIN TRANSPLANT 2023; 21:615-618. [PMID: 37584542 DOI: 10.6002/ect.2023.0102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
During pediatric liver transplant, biliary reconstruction is often performed using Roux-en-Y choledoc-hojejunostomy or hepaticojejunostomy due to size mismatch, excessive tension caused by distance between donor and recipient ducts, or for transplant to treat primary biliary pathology. This method can be associated with additional small bowel-related complications compared with end-to-end ductal anastomosis. We report a case of late small bowel obstruction secondary to an impacted bezoar that formed at a patulous jejunojejunostomy portion of the biliary-enteric anastomosis. The patient was a 26-year-old male patient, who underwent deceased donor whole liver transplant for pediatric acute liver failure. Prior to his presentation to our institution with 2 days of abdominal pain, nausea, persistent burping, and intermittent vomiting, the patient reported an uneventful posttransplant course and was followed up at the institution where his transplant was performed. There were no reported changes in diet or lifestyle and no similar episodes during his follow-up. The patient was managed surgically after a brief trial of nonoperative management. At laparotomy, the anastomosis was resected and reconstructed to improve enteric drainage and prevent recurrent bezoar formation. The patient was discharged with no postoperative complications and remained asymptomatic at 11 months follow-up. We describe the clinical course and our technical approach at initial choledochojejunostomy creation and at jejunojejunostomy revision.
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Affiliation(s)
- Srilakshmi Atthota
- From the Department of Surgery, Division of Transplantation, Massachusetts General Hospital, Boston, Massachusetts, USA
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Shamaa TM, Elsabbagh A, Yoshida A, Nagai S, Patton JH, Abouljoud M. Small bowel obstruction due to Roux-en-Y enterolith 13 years following deceased donor liver transplantation: a case report. J Surg Case Rep 2022; 2022:rjac090. [PMID: 35368381 PMCID: PMC8968282 DOI: 10.1093/jscr/rjac090] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 02/24/2022] [Indexed: 11/22/2022] Open
Abstract
Primary sclerosing cholangitis (PSC) is a progressive, cholestatic liver disease, and liver transplantation (LT) is considered the only therapeutic option for patients with end-stage liver disease secondary to PSC. Intestinal obstruction in adults after LT surgery is a rare complication with diverse clinical presentations. The most common etiology is intestinal adhesions, but this can also result from other rare causes such as enterolith. We describe the first case report of small bowel obstruction secondary to biliary stone formation in the common limb of Roux-en-Y hepaticojejunostomy 13 years after the deceased donor LT. The patient failed initial conservative management and developed peritonitis, requiring urgent surgical exploration to remove the enterolith and resect the involved small bowel. In conclusion, small bowel obstructions due to enteroliths are unusual clinical complications following LT, which require a high degree of suspicion in patients who develop a bowel obstruction in the setting of a previous hepaticojejunostomy.
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Affiliation(s)
- Tayseer M Shamaa
- Division of Transplant and Hepatobiliary Surgery, Henry Ford Hospital, Detroit, MI, USA
| | - Ahmed Elsabbagh
- Liver Transplantation Unit, Gastroenterology Surgical Center, Department of Surgery, Mansoura University, Egypt
| | - Atsushi Yoshida
- Division of Transplant and Hepatobiliary Surgery, Henry Ford Hospital, Detroit, MI, USA
| | - Shunji Nagai
- Division of Transplant and Hepatobiliary Surgery, Henry Ford Hospital, Detroit, MI, USA
| | - Joe H Patton
- Division of Acute Care Surgery, Henry Ford Hospital, Detroit, MI, USA
| | - Marwan Abouljoud
- Division of Transplant and Hepatobiliary Surgery, Henry Ford Hospital, Detroit, MI, USA
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Sun C, Song Z, Dong C, Zheng W, Wang K, Qin H, Yang Y, Han C, Zhang F, Xu M, Cao S, Cao Y, Gao W, Shen Z. The diagnosis and management of intestinal obstruction after pediatric liver transplantation. Pediatr Transplant 2022; 26:e14123. [PMID: 34428333 DOI: 10.1111/petr.14123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 07/11/2021] [Accepted: 08/02/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND The aim of this study was to analyze the risk factors, causes, and management of intestinal obstruction after pediatric liver transplantation. METHODS Retrospective analysis was performed on pediatric liver transplantation recipients from January 1st 2013 to December 31st 2019 at Organ Transplant Center, Tianjin First Central Hospital. The cases of intestinal obstruction were analyzed. RESULTS A total of 1034 pediatric liver transplantations were performed during the study period, 66 intestinal obstructions were diagnosed in 61 recipients. Three recipients suffered intestinal obstructions twice, and one recipient suffered three times. Forty of the 66 cases were treated with non-surgical treatment, including fasting, gastrointestinal decompression, purgation, enema, and parenteral nutrition. Surgical intervention was performed in 26 cases. Diaphragmatic hernia, intestinal inflammatory stenosis, PTLD, and intestine perforation are essential causes of intestinal obstruction in pediatric liver transplant recipients. Diaphragmatic hernia was independent risk factors for intestinal obstruction. The 1-, 2- and 3-year survival rate of the recipients with or without intestinal obstruction were 98.4%, 96.5%, 96.5% and 95.3%, 94.4%, 94.0%, respectively, without significant difference. CONCLUSIONS Most cases of intestinal obstruction after liver transplantation in children can be remitted by non-surgical treatment, but there are still some cases need to be treated by surgery. Both measures are related to ideal outcomes, intestinal obstruction does not increase the mortality rate in pediatric liver transplantation.
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Affiliation(s)
- Chao Sun
- Organ Transplant Center, Tianjin First Central Hospital, Tianjin, China.,Tianjin Key Laboratory for Organ Transplantation, Tianjin, China.,Tianjin Key Clinical Discipline (Organ Transplantation), Tianjin, China
| | - Zhuolun Song
- Organ Transplant Center, Tianjin First Central Hospital, Tianjin, China.,Tianjin Key Laboratory for Organ Transplantation, Tianjin, China.,Tianjin Key Clinical Discipline (Organ Transplantation), Tianjin, China
| | - Chong Dong
- Organ Transplant Center, Tianjin First Central Hospital, Tianjin, China.,Tianjin Key Laboratory for Organ Transplantation, Tianjin, China.,Tianjin Key Clinical Discipline (Organ Transplantation), Tianjin, China
| | - Weiping Zheng
- Organ Transplant Center, Tianjin First Central Hospital, Tianjin, China.,Tianjin Key Laboratory for Organ Transplantation, Tianjin, China.,Tianjin Key Clinical Discipline (Organ Transplantation), Tianjin, China
| | - Kai Wang
- Organ Transplant Center, Tianjin First Central Hospital, Tianjin, China.,Tianjin Key Laboratory for Organ Transplantation, Tianjin, China.,Tianjin Key Clinical Discipline (Organ Transplantation), Tianjin, China
| | - Hong Qin
- Organ Transplant Center, Tianjin First Central Hospital, Tianjin, China.,Tianjin Key Laboratory for Organ Transplantation, Tianjin, China.,Tianjin Key Clinical Discipline (Organ Transplantation), Tianjin, China
| | - Yang Yang
- Organ Transplant Center, Tianjin First Central Hospital, Tianjin, China.,Tianjin Key Laboratory for Organ Transplantation, Tianjin, China.,Tianjin Key Clinical Discipline (Organ Transplantation), Tianjin, China
| | - Chao Han
- Organ Transplant Center, Tianjin First Central Hospital, Tianjin, China.,Tianjin Key Laboratory for Organ Transplantation, Tianjin, China.,Tianjin Key Clinical Discipline (Organ Transplantation), Tianjin, China
| | - Fubo Zhang
- Organ Transplant Center, Tianjin First Central Hospital, Tianjin, China.,Tianjin Key Laboratory for Organ Transplantation, Tianjin, China.,Tianjin Key Clinical Discipline (Organ Transplantation), Tianjin, China
| | - Min Xu
- Organ Transplant Center, Tianjin First Central Hospital, Tianjin, China.,Tianjin Key Laboratory for Organ Transplantation, Tianjin, China.,Tianjin Key Clinical Discipline (Organ Transplantation), Tianjin, China
| | - Shunqi Cao
- Organ Transplant Center, Tianjin First Central Hospital, Tianjin, China.,Tianjin Key Laboratory for Organ Transplantation, Tianjin, China.,Tianjin Key Clinical Discipline (Organ Transplantation), Tianjin, China
| | - Yu Cao
- Organ Transplant Center, Tianjin First Central Hospital, Tianjin, China.,Tianjin Key Laboratory for Organ Transplantation, Tianjin, China.,Tianjin Key Clinical Discipline (Organ Transplantation), Tianjin, China
| | - Wei Gao
- Organ Transplant Center, Tianjin First Central Hospital, Tianjin, China.,Tianjin Key Laboratory for Organ Transplantation, Tianjin, China.,Tianjin Key Clinical Discipline (Organ Transplantation), Tianjin, China
| | - Zhongyang Shen
- Organ Transplant Center, Tianjin First Central Hospital, Tianjin, China.,Tianjin Key Laboratory for Organ Transplantation, Tianjin, China.,Tianjin Key Clinical Discipline (Organ Transplantation), Tianjin, China
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