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Diedrich CM, Verhorstert KWJ, Riool M, Schuster H, de Boer L, Kikhney J, Moter A, Zaat SAJ, Roovers JPWR. Transvaginal Mesh-related Complications and the Potential Role of Bacterial Colonization: An Exploratory Observational Study. J Minim Invasive Gynecol 2023; 30:205-215. [PMID: 36442754 DOI: 10.1016/j.jmig.2022.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 10/12/2022] [Accepted: 11/19/2022] [Indexed: 11/27/2022]
Abstract
STUDY OBJECTIVE This study aimed to investigate the potential role of transvaginal mesh bacterial colonization in the development of mesh-related complications (MRCs). DESIGN An observational and exploratory study. SETTING Tertiary referral center (Amsterdam UMC, location AMC, Amsterdam, The Netherlands). PATIëNTS: 49 patients indicated for mesh removal and 20 women of whom vaginal tissue was retrieved during prolapse surgery as a reference cohort. INTERVENTIONS collection of mesh-tissue complex (patient cohort) or vaginal tissue (reference cohort) MEASUREMENTS AND MAIN RESULTS: Homogenized samples were used for quantitative microbiological culture. Inflammation and fibrosis were semiquantitatively histologically scored; Gram staining and fluorescence in situ hybridization were used to detect bacteria and bacterial biofilms. Of the 49 patients, 44 samples (90%) were culture positive, with a higher diversity of species and more Gram-negative bacteria and polymicrobial cultures in the MRC cohort than the reference cohort, with mostly staphylococci, streptococci, Actinomyces spp., Cutibacterium acnes, and Escherichia coli. Patients with clinical signs of infection or exposure had the highest bacterial counts. Histology demonstrated moderate to severe inflammation in most samples. Gram staining showed bacteria in 57% of culture-positive samples, and in selected samples, fluorescence in situ hybridization illustrated a polymicrobial biofilm. CONCLUSION In this study, we observed distinct differences in bacterial numbers and species between patients with MRCs and a reference cohort. Bacteria were observed at the mesh-tissue interface in a biofilm. These results strongly support the potential role of bacterial mesh colonization in the development of MRCs.
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Affiliation(s)
- Chantal M Diedrich
- Department of Obstetrics and Gynecology, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Meibergdreef 9 (Drs. Diedrich, Verhorstert, Schuster, and Roovers), Amsterdam, The Netherlands; Department of Medical Microbiology and Infection Prevention, Amsterdam institute for Infection and Immunity, Amsterdam UMC, University of Amsterdam, Meibergdreef 9 (Drs. Diedrich, Verhorstert, Riool, Zaa, and Schuster, Ms. de Boer), Amsterdam, The Netherlands.
| | - Kim W J Verhorstert
- Department of Obstetrics and Gynecology, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Meibergdreef 9 (Drs. Diedrich, Verhorstert, Schuster, and Roovers), Amsterdam, The Netherlands; Department of Medical Microbiology and Infection Prevention, Amsterdam institute for Infection and Immunity, Amsterdam UMC, University of Amsterdam, Meibergdreef 9 (Drs. Diedrich, Verhorstert, Riool, Zaa, and Schuster, Ms. de Boer), Amsterdam, The Netherlands
| | - Martijn Riool
- Department of Medical Microbiology and Infection Prevention, Amsterdam institute for Infection and Immunity, Amsterdam UMC, University of Amsterdam, Meibergdreef 9 (Drs. Diedrich, Verhorstert, Riool, Zaa, and Schuster, Ms. de Boer), Amsterdam, The Netherlands
| | - Heleen Schuster
- Department of Obstetrics and Gynecology, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Meibergdreef 9 (Drs. Diedrich, Verhorstert, Schuster, and Roovers), Amsterdam, The Netherlands; Department of Medical Microbiology and Infection Prevention, Amsterdam institute for Infection and Immunity, Amsterdam UMC, University of Amsterdam, Meibergdreef 9 (Drs. Diedrich, Verhorstert, Riool, Zaa, and Schuster, Ms. de Boer), Amsterdam, The Netherlands
| | - Leonie de Boer
- Department of Medical Microbiology and Infection Prevention, Amsterdam institute for Infection and Immunity, Amsterdam UMC, University of Amsterdam, Meibergdreef 9 (Drs. Diedrich, Verhorstert, Riool, Zaa, and Schuster, Ms. de Boer), Amsterdam, The Netherlands
| | - Judith Kikhney
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute for Microbiology, Infectious Diseases, and Immunology, Biofilmcenter, Hindenburgdamm 30 (Drs. Kikhney and Moter), 12203 Berlin, Germany; MoKi Analytics GmbH, Hindenburgdamm 30 (Drs. Kikhney and Moter) 12203 Berlin, Germany
| | - Annette Moter
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute for Microbiology, Infectious Diseases, and Immunology, Biofilmcenter, Hindenburgdamm 30 (Drs. Kikhney and Moter), 12203 Berlin, Germany; MoKi Analytics GmbH, Hindenburgdamm 30 (Drs. Kikhney and Moter) 12203 Berlin, Germany; Practice Moter Diagnostics (practice), Marienplatz 9 (Dr. Moter), 12207 Berlin, Germany
| | - Sebastian A J Zaat
- Department of Medical Microbiology and Infection Prevention, Amsterdam institute for Infection and Immunity, Amsterdam UMC, University of Amsterdam, Meibergdreef 9 (Drs. Diedrich, Verhorstert, Riool, Zaa, and Schuster, Ms. de Boer), Amsterdam, The Netherlands
| | - Jan-Paul W R Roovers
- Department of Obstetrics and Gynecology, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Meibergdreef 9 (Drs. Diedrich, Verhorstert, Schuster, and Roovers), Amsterdam, The Netherlands
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Jeffery ST, Maljaars LP, Diedrich CM, Kastelein AW, van Eijndhoven HW, Schweitzer KJ, Roovers JPW. An Observational Study on the Efficacy and Complications of a Transvaginal Single-Incision Mesh for Pelvic Organ Prolapse. J Gynecol Surg 2022. [DOI: 10.1089/gyn.2021.0124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Stephen T. Jeffery
- Department of Urology, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - Lennart P. Maljaars
- Department of Obstetrics and Gynecology, Amsterdam University Medical Centers, Location AMC, Amsterdam, the Netherlands
| | - Chantal M. Diedrich
- Department of Obstetrics and Gynecology, Amsterdam University Medical Centers, Location AMC, Amsterdam, the Netherlands
| | - Arnoud W. Kastelein
- Department of Obstetrics and Gynecology, Amsterdam University Medical Centers, Location AMC, Amsterdam, the Netherlands
| | | | - Karlijn J. Schweitzer
- Department of Obstetrics and Gynecology, University Medical Centre, Utrecht, the Netherlands
| | - Jan-Paul W.R. Roovers
- Department of Obstetrics and Gynecology, Amsterdam University Medical Centers, Location AMC, Amsterdam, the Netherlands
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Diedrich CM, Guler Z, Hympanova L, Vodegel E, Zündel M, Mazza E, Deprest J, Roovers JP. Evaluation of the short-term host response and biomechanics of an absorbable poly-4-hydroxybutyrate scaffold in a sheep model following vaginal implantation. BJOG 2021; 129:1039-1049. [PMID: 34865300 PMCID: PMC9303173 DOI: 10.1111/1471-0528.17040] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 11/19/2021] [Accepted: 11/30/2021] [Indexed: 12/01/2022]
Abstract
Objective To evaluate the host‐ and biomechanical response to a fully absorbable poly‐4‐hydroxybutyrate (P4HB) scaffold in comparison with the response to polypropylene (PP) mesh. Design In vivo animal experiment. Setting KU Leuven Center for Surgical Technologies. Population Fourteen parous female Mule sheep. Methods P4HB scaffolds were surgically implanted in the posterior vaginal wall of sheep. The comparative PP mesh data were obtained from an identical study protocol performed previously. Main outcome measures Gross necropsy, host response and biomechanical evaluation of explants, and the in vivo P4HB scaffold degradation were evaluated at 60‐ and 180‐days post‐implantation. Data are reported as mean ± standard deviation (SD) or standard error of the mean (SEM). Results Gross necropsy revealed no implant‐related adverse events using P4HB scaffolds. The tensile stiffness of the P4HB explants increased at 180‐days (12.498 ± 2.66 N/mm SEM [p =0.019]) as compared to 60‐days (4.585 ± 1.57 N/mm) post‐implantation, while P4HB degraded gradually. P4HB scaffolds exhibited excellent tissue integration with dense connective tissue and a moderate initial host response. P4HB scaffolds induced a significantly higher M2/M1 ratio (1.70 ± 0.67 SD, score 0–4), as compared to PP mesh(0.99 ± 0.78 SD, score 0–4) at 180‐days. Conclusions P4HB scaffold facilitated a gradual load transfer to vaginal tissue over time. The fully absorbable P4HB scaffold, in comparison to PP mesh, has a favorable host response with comparable load‐bearing capacity. If these results are also observed at longer follow‐up in‐vivo, a clinical study using P4HB for vaginal POP surgery may be warranted to demonstrate efficacy. Tweetable Abstract Degradable vaginal P4HB implant might be a solution for treatment of POP. Degradable vaginal P4HB implant might be a solution for treatment of POP.
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Affiliation(s)
- Chantal M Diedrich
- Department of Obstetrics and Gynaecology, Center for Reproductive Medicine (AMC), Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Zeliha Guler
- Department of Obstetrics and Gynaecology, Center for Reproductive Medicine (AMC), Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Lucie Hympanova
- Centre for Surgical Technologies, Biomedical Sciences Group, KU Leuven, Leuven, Belgium.,Third Faculty of Medicine, Institute for the Care of Mother and Child, Charles University, Prague, Czech Republic
| | - Eva Vodegel
- Department of Obstetrics and Gynaecology, Center for Reproductive Medicine (AMC), Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Manuel Zündel
- Institute of Mechanical Systems, ETH Zurich, Zurich, Switzerland.,Swiss Federal Laboratories for Materials Science and Technology, EMPA, Dübendorf, Switzerland
| | - Edoardo Mazza
- Institute of Mechanical Systems, ETH Zurich, Zurich, Switzerland.,Swiss Federal Laboratories for Materials Science and Technology, EMPA, Dübendorf, Switzerland
| | - Jan Deprest
- Centre for Surgical Technologies, Biomedical Sciences Group, KU Leuven, Leuven, Belgium
| | - Jan Paul Roovers
- Department of Obstetrics and Gynaecology, Center for Reproductive Medicine (AMC), Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
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Kastelein AW, Diedrich CM, de Waal L, Ince C, Roovers JPWR. The vaginal microcirculation after prolapse surgery. Neurourol Urodyn 2019; 39:331-338. [PMID: 31691336 PMCID: PMC7004127 DOI: 10.1002/nau.24203] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 10/20/2019] [Indexed: 01/08/2023]
Abstract
Aims Oxygen plays a crucial role in wound healing after prolapse surgery. Trauma to the vaginal vasculature might limit the delivery of oxygen to the surgical wound, which may negatively affect wound healing and regeneration of connective tissue. This possibly increases the future risk of recurrence. We aimed to determine the effects of vaginal prolapse surgery on the microcirculation of the vaginal wall. Methods We evaluated the vaginal microcirculation in healthy participants without known vascular disease undergoing anterior and/or posterior colporrhaphy. We used incident dark‐field imaging for in vivo assessment before and after (1 day, 2 weeks, and 6 weeks) surgery. We studied perfusion (microvascular flow index [MFI]), angioarchitecture (morphology/layout of microvessels) and capillary density. Results Ten women were included. Interindividual differences were observed 1 day postoperatively with regard to perfusion and angioarchitecture. Microvascular flow at the surgical site was absent or significantly reduced in some participants, whereas normal microvascular flow was observed in others (MFI range 0–3). Perfusion and angioarchitecture had been restored in all participants after 6 weeks (MFI range 2–3), regardless of the extent of vascular trauma 1 day postoperatively. Conclusions The difference in the extent of vascular trauma between women undergoing seemingly identical surgical procedures suggests that some individuals are more susceptible to vascular trauma than others. Delivery of oxygen to the wound and subsequent wound healing may be compromised in these cases, which could be related to the development of anatomical recurrence. Future studies should investigate whether there is a relationship between the vaginal microvasculature and the recurrence of prolapse.
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Affiliation(s)
- Arnoud W Kastelein
- Department of Obstetrics and Gynaecology, University of Amsterdam, Amsterdam, The Netherlands
| | - Chantal M Diedrich
- Department of Obstetrics and Gynaecology, University of Amsterdam, Amsterdam, The Netherlands
| | - Laura de Waal
- Department of Obstetrics and Gynaecology, University of Amsterdam, Amsterdam, The Netherlands
| | - Can Ince
- Department of Translational Physiology, University of Amsterdam, Amsterdam, The Netherlands.,Department of Intensive Care, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Jan-Paul W R Roovers
- Department of Obstetrics and Gynaecology, University of Amsterdam, Amsterdam, The Netherlands
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Diedrich CM, Kastelein AW, Verri FM, Weber MA, Ince C, Roovers JPWR. Effects of topical estrogen therapy on the vaginal microcirculation in women with vulvovaginal atrophy. Neurourol Urodyn 2019; 38:1298-1304. [PMID: 30947367 PMCID: PMC6850718 DOI: 10.1002/nau.23977] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 12/03/2018] [Accepted: 02/11/2019] [Indexed: 12/14/2022]
Abstract
AIMS This study aims to assess vaginal wall angioarchitecture and function in women with vulvovaginal atrophy (VVA) and determine the effect of topical estrogen on the vaginal microcirculation. MATERIALS AND METHODS In this prospective observational study, incident dark field imaging was used to assess the vaginal microcirculation. In patients with VVA, measurements were performed before and after treatment with topical estrogen and compared to measurements performed in women without VVA. Vaginal angioarchitecture was studied by assessing microcirculatory architecture and capillary tortuosity scores at four regions of the vaginal wall. In addition, the capillary density and microvascular flow index (MFI) were obtained. RESULTS Seventeen women were included in this study. Of these, eight women were diagnosed with VVA and nine women were considered healthy controls. Significant differences were observed between groups with regard to microcirculatory architecture scores. The architecture of the microvasculature in women with VVA was characterized by the appearance of a vascular network without capillary loops, whereas an array of capillary loops was predominantly seen in women without VVA. After estrogen treatment, no difference in architecture scores between patients and healthy controls was observed. Capillary tortuosity, capillary density, and MFI were similar in both groups before and after estrogen treatment. CONCLUSIONS The architecture of vaginal microvasculature is altered in patients with VVA. In case of similar vascular architecture, capillary tortuosity and density seem to be comparable. Treatment with topical estrogen results in restoration of the angioarchitecture.
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Affiliation(s)
- Chantal M Diedrich
- Department of Obstetrics and Gynecology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Arnoud W Kastelein
- Department of Obstetrics and Gynecology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Filippo M Verri
- Department of Obstetrics and Gynecology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Maaike A Weber
- Department of Obstetrics and Gynecology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Can Ince
- Department of Translational Physiology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.,Department of Intensive Care, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Jan-Paul W R Roovers
- Department of Obstetrics and Gynecology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
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