Gert Naumann
University of Mainz
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Gert Naumann.
British Journal of Obstetrics and Gynaecology | 2012
Stefan Albrich; Rosa Maria Laterza; C. Skala; Stefano Salvatore; Heinz Koelbl; Gert Naumann
Please cite this paper as: Albrich S, Laterza R, Skala C, Salvatore S, Koelbl H, Naumann G. Impact of mode of delivery on levator morphology: a prospective observational study with three‐dimensional ultrasound early in the postpartum period. BJOG 2012;119:51–61.
International Urogynecology Journal | 2006
Eckhard Petri; Ruediger Niemeyer; Alois Martan; Ralf Tunn; Gert Naumann; Heinz Koelbl
Suburethral slings with tension-free vaginal tapes have become a popular treatment for stress urinary incontinence. Case reports on singleton complications are numerous and of clinical interest. Four European centers for urogynecology report on 328 surgical reinterventions after tension-free slings. Poor surgical technique is the most frequent cause of problems (45%), followed by incorrect indication (38%). The most frequent symptom is functional or anatomical outlet obstruction; perforation or penetration and defect healing are rare, but, apparently more frequent than described in studies or follow-up series previously.
European Urology | 2017
Christopher R. Chapple; Francisco Cruz; Xavier Deffieux; Alfredo L. Milani; S. Arlandis; Walter Artibani; Ricarda M. Bauer; Fiona C. Burkhard; Linda Cardozo; David Castro-Diaz; Jean-Nicolas Cornu; Jan Deprest; Alfons Gunnemann; Maria Gyhagen; John Heesakkers; Heinz Koelbl; Sheila MacNeil; Gert Naumann; Jan-Paul W. R. Roovers; Stefano Salvatore; Karl-Dietrich Sievert; Tufan Tarcan; Frank Van der Aa; Francesco Montorsi; Manfred P. Wirth; Mohamed Abdel-Fattah
CONTEXT Surgical nonautologous meshes have been used for several decades to repair abdominal wall herniae. Implantable materials have been adopted for the treatment of female and male stress urinary incontinence (SUI) and female pelvic organ prolapse (POP). OBJECTIVE A consensus review of existing data based on published meta-analyses and reviews. EVIDENCE ACQUISITION This document summarises the deliberations of a consensus group meeting convened by the European Association of Urology (EAU) and the European Urogynecological Association, to explore the current evidence relating to the use of polypropylene (PP) materials used for the treatment of SUI and POP, with reference to the 2016 EAU guidelines (European Association of Urology 2016), the European Commissions SCENIHR report on the use of surgical meshes (SCENIHR 2015), other available high-quality evidence, guidelines, and national recommendations. EVIDENCE SYNTHESIS Current data suggest that the use of nonautologous durable materials in surgery has well-established benefits but significant risks, which are specific to the condition and location they are used for. Various graft-related complications have been described-such as infection, chronic pain including dyspareunia, exposure in the vagina, shrinkage, erosion into other organs of xenografts, synthetic PP tapes (used in SUI), and meshes (used in POP)-which differ from the complications seen with abdominal herniae. CONCLUSIONS When considering surgery for SUI, it is essential to evaluate the available options, which may include synthetic midurethral slings (MUSs) using PP tapes, bulking agents, colposuspension, and autologous sling surgery. The use of synthetic MUSs for surgical treatment of SUI in both male and female patients has good efficacy and acceptable morbidity. Synthetic mesh for POP should be used only in complex cases with recurrent prolapse in the same compartment and restricted to those surgeons with appropriate training who are working in multidisciplinary referral centres. PATIENT SUMMARY Synthetic slings can be safely used in the surgical treatment of stress incontinence in both male and female patients. Patients need to be aware of the alternative therapy and potential risks and complications of this therapy. Synthetic mesh for treating prolapse should be used only in complex cases with recurrent prolapse in specialist referral centres.
European Journal of Obstetrics & Gynecology and Reproductive Biology | 2011
C. Skala; Karin Renezeder; Stefan Albrich; Alexander Puhl; Rosa Maria Laterza; Gert Naumann; Heinz Koelbl
OBJECTIVE This is a description of complications following prolapse surgery with the use of alloplastic materials, the management and outcome. STUDY DESIGN 54 women have been referred to Mainz, urogynecology referral center due to complications following mesh-augmented prolapse surgery. RESULTS The complaints who lead to the admission are expressed by the new terminology and standardized classification for complications arising directly from the insertion of prostheses and grafts in female pelvic floor surgery [1]. Pain (66.7%), mesh erosion (55.6%) and vaginal discharge (48.1%) were the most frequent complaints. Revision was performed after a median time of 27.2 months post mesh implantation. Nine patients underwent limited excision of the mesh, 49 had a vaginal revision with wide mesh removal and 10 had a laparotomy with wide mesh removal. After 3 months 48 patients had a follow-up, 25 could have been relieved from their complaints. CONCLUSION Although the incidence is low, complications after prolapse repair with mesh use are difficult to prevent, affect quality of life and often require a new surgical intervention, which should be performed by an experienced and competent surgeon.
International Urogynecology Journal | 2011
C. Skala; Ilka Brigitte Petry; Stefan Albrich; Alexander Puhl; Gert Naumann; Heinz Koelbl
Introduction and hypothesisThis study evaluates the expression of estrogen receptor (ER) isoforms alpha (α) and beta (β) and progesterone receptor (PR) in vaginal and periurethral tissue in women with genital prolapse in relation to genital and lower urinary tract symptoms (LUTS).MethodsForty-seven postmenopausal women without systemic estrogen therapy underwent pelvic organ prolapse quantification and urodynamic assessment. LUTS were evaluated by CATI questionnaire. Biopsies from vaginal and periurethral tissue were obtained during prolapse surgery. The steroid receptor gene expression was measured by RT-PCR.ResultsThe expression of PR in periurethral and ER β in vaginal tissue varied with prolapse extent. Nulliparous women showed a significantly higher expression of PR in periurethral tissue. Women with a positive stress test and those with overactive bladder symptoms showed a significantly lower amount of PR in vaginal tissue.ConclusionChanges in PR expression in vaginal or periurethral tissue might be a marker of structural and endocrine changes.
European Journal of Obstetrics & Gynecology and Reproductive Biology | 2013
Gert Naumann; Joscha Steetskamp; Mira Meyer; Rosa Maria Laterza; C. Skala; Stefan Albrich; Heinz Koelbl
OBJECTIVES To evaluate the effectiveness and assess the changes in sexual function and quality of life after placement of a single-incision sling for the treatment of female stress urinary incontinence. STUDY DESIGN A prospective study of women diagnosed with stress urinary incontinence. The single-incision sling was implanted and patients were followed postoperatively for 6 months. The postoperative rate of continence, complications, changes in sexual function, and patient-reported quality of life were evaluated. Female Sexual Function in sexually active patients was evaluated before and after the single-incision sling procedure using the Female Sexual Function Index. From January 2009 to November 2011, 73 patients were enrolled and underwent the procedure to implant the MiniArc® or Ajust® single-incision sling. RESULTS Overall, 93.2% of the patients who successfully received a single-incision sling demonstrated total restoration of continence (83.6%) or improved continence (9.6%) at the 6-month postoperative visit. Improvements were seen in the quality of life scores related to global bladder feeling (87.7%) and the Female Sexual Function Index (preoperative score 23.86±5.67 vs postoperative score 27.25±4.66 [P<0.0001]). CONCLUSION Single-incision sling treatment for stress urinary incontinence led to improvements in continence and sexual function at 6 months of postoperative follow-up.
Urologe A | 2009
C. Hampel; Gert Naumann; Joachim W. Thüroff; Rolf Gillitzer
Tension-free alloplastic slings (TFAS) have revolutionized surgery for female stress urinary incontinence for more than 15 years. The procedure is easy to perform, minimally invasive with short operation time in an ambulatory setting, and has proven efficacy comparable to the gold standard procedure of retropubic colposuspension.Possible TFAS complications are potentially underestimated with respect to prevalence and manageability. We report our experience with major complications following TFAS and mesh implantation in patients referred to our interdisciplinary continence center. Patient history, risk factors, and preoperative diagnostics were analyzed for development of individualized treatment strategies. Overcorrections with formation of postvoid residual (PVR) can occur in retropubic TFAS as well as in transobturator TFAS. However, the most prevalent and challenging complication is de novo urgency. Major complications like urethrovaginal fistula, sling arrosions of the urethra, bladder, and vagina as well as infected gangrene and complete urethral loss requiring urinary diversion were seen at a frequency suggesting underrepresentation of these complications in the literature. The large amount of implanted artificial mesh material used for pelvic organ prolapse (POP) correction represents a particular challenge in cases of dyspareunia or persisting pelvic pain.Complication management has to be based on cystoscopic, urodynamic, and physical examination findings to be individualized to each patient and must take potential risks of recurrent incontinence or persisting complaints into account.To prevent TFAS or mesh complications, every patient should have tried all conservative treatment options and should be completely evaluated (including urodynamics) preoperatively. Artificial meshes should only be used in cases of prolapse recurrence or in otherwise inoperable patients. Postoperative urodynamics may help to document treatment success and to identify and quantify complications.
Regenerative Medicine | 2009
C. Skala; Ilka Brigitte Petry; Susanne Gebhard; Jan G. Hengstler; Stefan Albrich; Theodoros Maltaris; Gert Naumann; Heinz Koelbl
AIMS An extensive colonization of surgical meshes with autologous fibroblasts may reduce complications. Therefore, we aimed to establish a technique that allows isolation and propagation of fibroblasts from vaginal biopsies. Using these cells we tested the applicability of several clinically applied meshes for fibroblast coating. MATERIALS & METHODS Fibroblasts were isolated from vaginal tissue after digestion with collagenase. Characterization was performed by immunostaining for cytokeratin 5, 6 and 14, smooth muscle actin and vimentin. A semiquantitative technique was applied to determine the degree of mesh coating 5 h and 5 weeks after seeding of fibroblasts. Seven meshes of different mesh types have been tested. RESULTS Cells with a fibroblast-like morphology have been isolated from vaginal tissue and could be propagated for at least 12 passages, resulting in a total number of 1.2 x 10(7) cells. Immunostaining showed that cells were positive for the mesenchymal cell marker vimentin and negative for smooth muscle actin, as well as the epithelial cell markers cytokeratin 5, 6 and 14, supporting their classification as fibroblasts. Clear differences in fibroblast colonization between the seven tested mesh types have been observed. Polypropylene mesh Obtape showed an acceptable covering with fibroblasts. The best coating was obtained for xenograft-based meshes, but under cell-culture conditions the mesh showed signs of decomposition. CONCLUSION We have established a technique that allows isolation and propagation of vaginal fibroblasts. The result of vaginal fibroblast colonization of allograft-based meshes strongly depends on the mesh type, whereby the best coating could be achieved for a polypropylene mesh.
Urologe A | 2009
C. Hampel; Gert Naumann; Joachim W. Thüroff; Rolf Gillitzer
Tension-free alloplastic slings (TFAS) have revolutionized surgery for female stress urinary incontinence for more than 15 years. The procedure is easy to perform, minimally invasive with short operation time in an ambulatory setting, and has proven efficacy comparable to the gold standard procedure of retropubic colposuspension.Possible TFAS complications are potentially underestimated with respect to prevalence and manageability. We report our experience with major complications following TFAS and mesh implantation in patients referred to our interdisciplinary continence center. Patient history, risk factors, and preoperative diagnostics were analyzed for development of individualized treatment strategies. Overcorrections with formation of postvoid residual (PVR) can occur in retropubic TFAS as well as in transobturator TFAS. However, the most prevalent and challenging complication is de novo urgency. Major complications like urethrovaginal fistula, sling arrosions of the urethra, bladder, and vagina as well as infected gangrene and complete urethral loss requiring urinary diversion were seen at a frequency suggesting underrepresentation of these complications in the literature. The large amount of implanted artificial mesh material used for pelvic organ prolapse (POP) correction represents a particular challenge in cases of dyspareunia or persisting pelvic pain.Complication management has to be based on cystoscopic, urodynamic, and physical examination findings to be individualized to each patient and must take potential risks of recurrent incontinence or persisting complaints into account.To prevent TFAS or mesh complications, every patient should have tried all conservative treatment options and should be completely evaluated (including urodynamics) preoperatively. Artificial meshes should only be used in cases of prolapse recurrence or in otherwise inoperable patients. Postoperative urodynamics may help to document treatment success and to identify and quantify complications.
European Journal of Obstetrics & Gynecology and Reproductive Biology | 2012
Gert Naumann; H. Hagemeier; Stefan Albrich; C. Skala; Heinz Koelbl; Rosa Maria Laterza
OBJECTIVE This study was undertaken to describe short-term postoperative achievement of subjective preoperative goals for single-incision MiniArc slings, in comparison with tension-free vaginal tape (TVT). METHOD Patients submitted to mid-urethral sling (TVT and MiniArc) procedures for stress urinary incontinence (SUI) in two centers were included in this prospective study. Before surgery, the patients completed a preoperative open-ended questionnaire, in which they described their personal outcomes goals for SUI surgery and the degree of severity of their symptoms. At the first postoperative check, they were asked to assess the degree to which their goals had been met and the degree of postoperative incontinence symptoms; their grade of satisfaction was evaluated with IIQ-7, UDI-6 and a 0-10 visual analog scale. RESULTS One hundred and eight patients (TVT n=51, MiniArc n=57) were included in this study. Incontinence symptom relief and improvement of quality of life were the most commonly described preoperative goals. Six to eight weeks after surgery, 47 patients (92.1%) after TVT and 53 (92.9%) women after single-incision slings were objectively cured (P=1). After surgery, more than 90% of the patients in both groups achieved their preoperative goals. Symptom scores improved significantly and were comparable in both groups. CONCLUSION Our results show that self-reported achievement of preoperative goals of patients submitted to single-incision slings are comparable at the first follow-up with patients who have undergone the classic mid-urethral sling.