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Tang F, Miao D, Huang R, Zheng B, Yu Y, Ma P, Peng B, Li Y, Wang H, Wu D. Double-Layer Asymmetric Porous Mesh with Dynamic Mechanical Support Properties Enables Efficient Single-Stage Repair of Contaminated Abdominal Wall Defect. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2307845. [PMID: 38408735 DOI: 10.1002/adma.202307845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 02/08/2024] [Indexed: 02/28/2024]
Abstract
Contamination tolerance and long-term mechanical support are the two critical properties of meshes for contaminated abdominal wall defect repair. However, biological meshes with excellent pollution tolerance fail to provide bio-adaptive long-term mechanical support due to their rapid degradation. Here, a novel double-layer asymmetric porous mesh (SIS/PVA-EXO) is designed by simple and efficient in situ freeze-thaw of sticky polyvinyl alcohol (PVA) solution on the loosely porous surface of small intestinal submucosal decellularized matrix (SIS), which can successfully repair the contaminated abdominal wall defect with bio-adaptive dynamic mechanical support through only single-stage surgery. The exosome-loaded degradable loosely porous SIS layer accelerates the tissue healing; meanwhile, the exosome-loaded densely porous PVA layer can maintain long-term mechanical support without any abdominal adhesion. In addition, the tensile strength and strain at break of SIS/PVA-EXO mesh change gradually from 0.37 MPa and 210% to 0.10 MPa and 385% with the degradation of SIS layer. This unique performance can dynamically adapt to the variable mechanical demands during different periods of contaminated abdominal wall reconstruction. As a result, this SIS/PVA-EXO mesh shows an attractive prospect in the treatment of contaminated abdominal wall defect without recurrence by integrating local immune regulation, tissue remodeling, and dynamic mechanical supporting.
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Affiliation(s)
- Fuxin Tang
- Department of General Surgery (Colorectal Surgery), Guangdong Institute of Gastroenterology, Biomedical Innovation Center, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, P. R. China
| | - Dongtian Miao
- PCFM Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Rongkang Huang
- Department of General Surgery (Colorectal Surgery), Guangdong Institute of Gastroenterology, Biomedical Innovation Center, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, P. R. China
| | - Bingna Zheng
- The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518000, P.R. China
| | - Yang Yu
- Department of General Surgery (Colorectal Surgery), Guangdong Institute of Gastroenterology, Biomedical Innovation Center, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, P. R. China
| | - Pengwei Ma
- PCFM Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Binying Peng
- Department of General Surgery (Colorectal Surgery), Guangdong Institute of Gastroenterology, Biomedical Innovation Center, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, P. R. China
| | - Yong Li
- Department of General Surgery (Gastrointestinal Surgery), Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, P. R. China
| | - Hui Wang
- Department of General Surgery (Colorectal Surgery), Guangdong Institute of Gastroenterology, Biomedical Innovation Center, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, P. R. China
| | - Dingcai Wu
- PCFM Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, P. R. China
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Diab MM, Patel S, Young C, Allen IE, Harris HW. Quality of life measures and cost analysis of biologic versus synthetic mesh for ventral hernia repair: The Preventing Recurrence in Clean and Contaminated Hernias randomized clinical trial. Surgery 2024; 175:1063-1070. [PMID: 38135553 DOI: 10.1016/j.surg.2023.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/11/2023] [Accepted: 11/07/2023] [Indexed: 12/24/2023]
Abstract
BACKGROUND Although the most durable method for ventral hernia repairs involves using mesh, whether to use biologic mesh versus synthetic mesh remains controversial. This study aimed to compare synthetic and biologic meshes with respect to patient-reported quality of life scores and costs after ventral hernia repair surgeries. METHODS This study is part of the Preventing Recurrence in Clean and Contaminated Hernias (PRICE) pragmatic randomized control trial conducted from March 2014 through October 2018. Patients were randomized 1:1 to undergo ventral hernia repair using either a biologic or synthetic mesh. The coprimary outcomes were 2-year changes in Visual Analog Scale, Activities Assessment Scale, Hernia-Related Quality-of-Life Survey, and Short-Form 36 Health Survey (SF-36) quality-of-life scores from repair. The secondary outcome was the overall cost per patient. RESULTS Among the 165 patients included in the study, 82 were randomized to biologic meshes and 83 to synthetic meshes. There were no significant differences in the performance between the 2 mesh types with regard to quality-of-life measures using a mixed model approach. This result was consistent even when performing subgroup analysis based on wound contamination. However, nonparametric tests comparing the differences in quality-of-life measures from preoperative to 24-month postoperative timepoints revealed that the synthetic mesh group showed a greater reduction in disability than biologic mesh for the SF-36 (median [interquartile range] of 20 [5-30] vs 6 [1-20], P = .025). This difference was due to reductions in the physical role limitations (62 [0-100] vs 0 [0-50], P = .018) and the pain (38 [12-50] vs 12 [0-25], P = .012) domains of the SF-36. Overall cost per patient was greater for biologic meshes (mean [95% confidence interval] of $80,420 [$66,485-$94,355] vs $61,036 [$48,946-$73,125], P = .038), regardless of insurance type. CONCLUSION In this randomized clinical trial, there were no differences in changes in quality-of-life scores at the 2-year timepoint except for the SF-36, where the synthetic mesh may be associated with less pain and physical role limitations than the biologic mesh. Overall costs per patient were less for synthetic than biologic mesh.
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Affiliation(s)
- Mohamed Mustafa Diab
- Department of Surgery, University of California, San Francisco, CA; Department of Surgery, Duke University, Durham, NC
| | - Sohil Patel
- Department of Surgery, University of California, San Francisco, CA
| | - Charlotte Young
- Department of Surgery, University of California, San Francisco, CA
| | - Isabel Elaine Allen
- Department of Epidemiology & Biostatistics, University of California, San Francisco, CA
| | - Hobart W Harris
- Department of Surgery, University of California, San Francisco, CA.
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Parmeshwar N, Lem M, Dugan CL, Piper M. Evaluating mesh use for abdominal donor site closure after deep inferior epigastric perforator flap breast reconstruction: A systematic review and meta-analysis. Microsurgery 2023; 43:855-864. [PMID: 37697962 DOI: 10.1002/micr.31107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 08/03/2023] [Accepted: 08/24/2023] [Indexed: 09/13/2023]
Abstract
BACKGROUND Despite improvement in abdominal morbidity with deep inferior epigastric perforator (DIEP) flap breast reconstruction compared to prior abdominally-based free flap breast reconstruction, abdominal bulge, and hernia rates have been cited anywhere from 2% to 33%. As a result, some surgeons utilize mesh or other reinforcement upon donor-site closure, but its benefit in preventing abdominal wall morbidity has not been well-defined for DIEP flaps. The purpose of this systematic review is to evaluate DIEP donor-site closure techniques and the impact of mesh type and plane on abdominal-wall morbidity including hernia and bulge, relative to primary fascial closure. METHODS MEDLINE, PubMED, Cochrane Library, and SCOPUS were systematically reviewed for studies evaluating DIEP flap breast reconstruction abdominal-donor site closure, where any mesh reinforcement or primary fascial closure was specified, and postoperative outcomes of hernia and/or abdominal bulge were reported. Analysis was performed in Review Manager (RevMan) evaluating mesh use, type, and plane relative to primary fascial closure, using the Mantel-Haenszel method to calculate odds ratios (ORs) of significance level p < .05, and a random effects model to account for inter-study heterogeneity. RESULTS Of the 2791 DIEP patients across 11 studies, 1901 patients underwent primary closure and 890 were repaired with mesh. When hernia and/or bulge were combined into a single complication, the use of any mesh did not significantly reduce its odds compared to primary closure (OR = 0.69, p = .20). Similarly, the use of any mesh did not significantly reduce the odds of bulge alone compared to primary closure (OR = 0.62, p = .43). However, the odds of hernia alone were significantly reduced by 72% with any mesh use (OR = 0.28, p = .03). CONCLUSION Mesh use was significantly associated with decreased odds of hernia alone with DIEP flap surgery, but there was no difference in bulge or combined hernia/bulge rates. As bulge is the more common abdominal morbidity after DIEP flap harvest in a patient with no prior abdominal surgery or risk factor for hernia, mesh use is not indicated in abdominal closure of all DIEP patients. Future prospective studies are warranted to characterize the specific indications for mesh use in the setting of DIEP flap surgery.
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Affiliation(s)
- Nisha Parmeshwar
- Division of Plastic and Reconstructive Surgery, University of California San Francisco, San Francisco, California, USA
| | - Melinda Lem
- Division of Plastic and Reconstructive Surgery, University of California San Francisco, San Francisco, California, USA
| | - Catherine L Dugan
- Division of Plastic and Reconstructive Surgery, University of California San Francisco, San Francisco, California, USA
| | - Merisa Piper
- Division of Plastic and Reconstructive Surgery, University of California San Francisco, San Francisco, California, USA
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Messa CA, Amro C, Niu EF, Habarth-Morales TE, Talwar AA, Thrippleton S, Broach R, Fischer JP. Transversus abdominis release with biosynthetic mesh for large ventral hernia repair: a 5-year analysis of clinical outcomes and quality of life. Hernia 2023:10.1007/s10029-023-02889-7. [PMID: 37755523 DOI: 10.1007/s10029-023-02889-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 09/10/2023] [Indexed: 09/28/2023]
Abstract
INTRODUCTION Transversus abdominis release (TAR) may provide an optimal plane for mesh placement for large ventral hernias requiring medial myofascial flap advancement. Long-term outcomes of TAR for large ventral hernia repair (VHR) remains under-studied. This study aims to assess longitudinal clinical outcomes and quality of life (QoL) following large VHR with TAR and resorbable biosynthetic mesh. METHODS Retrospective review of clinical outcomes and prospective QoL was performed for patients undergoing VHR with poly-4-hydroxybutyrate mesh and TAR from 2016 to 2021. Patients with ≤ 24 months of follow-up, defects ≤ 150 cm2, and parastomal hernias were excluded. Cost-related data was collected for each patient's hospital course. QoL was compared using paired Wilcoxon signed-rank tests. RESULTS Twenty-nine patients met inclusion criteria. Median age and BMI were 61 years (53.2-68.1 years) and 31.4 kg/m2 (26.1-35.3 kg/m2). Average hernia defect was 390cm2 ± 152.9 cm2. All patients underwent previous abdominal surgery and were primarily Ventral Hernia Working Group 2 (58.6%). Two hernia recurrences (6.9%) occurred over the median follow-up period of 63.1 months (IQR 43.7-71.3 months), with no cases of mesh infection or explantation. Delayed healing and seroma occurred in 27 and 10.3% of patients, respectively. QoL analysis identified a significant improvement in postoperative QoL (p < 0.005), that continued throughout the 5-year follow-up period, with a 41% overall improvement. Cost analysis identified the hospital revenue generated was approximately equal to the direct costs of patient care. Higher costs were associated with ASA class and length of stay (p < 0.05). CONCLUSION Large VHR with resorbable biosynthetic mesh and TAR can be performed safely, with a low recurrence and complication rate, acceptable hospital costs, and significant improvement in disease-specific QoL at long-term follow-up.
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Affiliation(s)
- C A Messa
- Division of Plastic Surgery, Department of Surgery, University of Pennsylvania Health System, PCAM South Pavilion 14th Floor, 3400 Civic Center Boulevard, Philadelphia, PA, 19104, USA
- St. George's University School of Medicine, St. George, Grenada
| | - C Amro
- Division of Plastic Surgery, Department of Surgery, University of Pennsylvania Health System, PCAM South Pavilion 14th Floor, 3400 Civic Center Boulevard, Philadelphia, PA, 19104, USA
| | - E F Niu
- Division of Plastic Surgery, Department of Surgery, University of Pennsylvania Health System, PCAM South Pavilion 14th Floor, 3400 Civic Center Boulevard, Philadelphia, PA, 19104, USA
| | - T E Habarth-Morales
- Division of Plastic Surgery, Department of Surgery, University of Pennsylvania Health System, PCAM South Pavilion 14th Floor, 3400 Civic Center Boulevard, Philadelphia, PA, 19104, USA
- Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
| | - A A Talwar
- Division of Plastic Surgery, Department of Surgery, University of Pennsylvania Health System, PCAM South Pavilion 14th Floor, 3400 Civic Center Boulevard, Philadelphia, PA, 19104, USA
| | - S Thrippleton
- Division of Plastic Surgery, Department of Surgery, University of Pennsylvania Health System, PCAM South Pavilion 14th Floor, 3400 Civic Center Boulevard, Philadelphia, PA, 19104, USA
| | - R Broach
- Division of Plastic Surgery, Department of Surgery, University of Pennsylvania Health System, PCAM South Pavilion 14th Floor, 3400 Civic Center Boulevard, Philadelphia, PA, 19104, USA
| | - J P Fischer
- Division of Plastic Surgery, Department of Surgery, University of Pennsylvania Health System, PCAM South Pavilion 14th Floor, 3400 Civic Center Boulevard, Philadelphia, PA, 19104, USA.
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Alansari AH, Almalawi AM, Alghamdi A, Alghamdi MS, Hazazi HA, Aljabri AA, Alsulami RA, Alkhoshi AM, Khinaifis F. Body Mass Index Within Multifactor Predictors of Ventral Hernia Recurrence: A Retrospective Cohort Study. Cureus 2023; 15:e41148. [PMID: 37519520 PMCID: PMC10386881 DOI: 10.7759/cureus.41148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2023] [Indexed: 08/01/2023] Open
Abstract
Background A ventral hernia is a protrusion of the peritoneum through the defective abdominal wall. Several risk factors increase the likelihood of hernial recurrence. One of the most common risk factors is obesity, defined by the World Health Organization (WHO) as increased body mass index (BMI). Few studies have explored the effects of BMI and other factors on hernia recurrence. Hence, we aimed to investigate the role of increased BMI in hernia recurrence in conjunction with various risk factors such as age, sex, type of hernia, the time elapsed between the occurrence and recurrence, complications of hernia, and procedure. Methods This retrospective cohort study was conducted at King Abdulaziz University Hospital (KAUH). All the patients were admitted between 2015-2022. A total of 1676 medical records were obtained from all patients who underwent hernia repair more than once or were diagnosed with a recurrent hernia during the study period. Results Our study revealed an insignificant correlation between a BMI of more than 25 kg/m2 and the recurrence of inguinal hernias, predominantly indirect hernias. Furthermore, overweight and obese patients experience a longer interval between the first and second hernia repairs. Interestingly, all the patients with inguinal and umbilical hernias had the same diagnosis at the second presentation. However, the findings also included a significant increase in umbilical hernias in individuals with a high BMI and higher recurrence rates among male patients with inguinal hernias. Conclusion BMI higher than 25 kg/m2 increases recurrence rates for umbilical hernias but decreases the recurrence of inguinal hernias.
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Affiliation(s)
| | - Asim M Almalawi
- Infectious Diseases, King Abdulaziz University Hospital, Jeddah, SAU
| | - Abdullah Alghamdi
- Infectious Diseases, King Abdulaziz University Hospital, Jeddah, SAU
| | | | - Hassan A Hazazi
- Infectious Diseases, King Abdulaziz University Hospital, Jeddah, SAU
| | | | - Raed A Alsulami
- Internal Medicine, King Abdulaziz University Hospital, Jeddah, SAU
| | | | - Fatma Khinaifis
- Surgical Oncology, King Abdulaziz University Hospital, Jeddah, SAU
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Shifting the Goalpost in Ventral Hernia Care: 5-year Outcomes after Ventral Hernia Repair with Poly-4-hydroxybutyrate Mesh. Hernia 2022; 26:1635-1643. [DOI: 10.1007/s10029-022-02674-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 08/30/2022] [Indexed: 11/27/2022]
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