Bladder Wall Substitution With Synthetic and Non-Intestinal Organic Materials

Elbahnasy, Abdelhamid M.; Shalhav, Arieh L.; Hoenig, David M.; Figenshau, Robert S.; Clayman, Ralph V.

doi:10.1016/s0022-5347(01)63690-5

Cited by 77 publications

(30 citation statements)

References 77 publications

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“…Apart from bowel segments and stomach, other natural tissues have been unsuccessful and/or associated with a high rate of complications and hence abandoned. Examples used over the years include free fascial grafts, peritoneum, omentum, reversed seromuscular bowel grafts, lyophilised human dura, skin, preserved bladder, pericardium and placenta [9,10]. Synthetic materials have also been disappointing.…”

Section: History Of Augmentation Cystoplastymentioning

confidence: 99%

“…Synthetic materials have also been disappointing. Materials such as gelatin sponge, teflon, polyvinyl sponge, resin coated paper, poly‐α‐amino membrane, collagen/polyglactin membrane and silastic have all been rejected after various associated problems including metaplastic bone formation, recurrent or persistent UTI, stone formation, fistulae, contracture and fibrosis [10,11].…”

Section: History Of Augmentation Cystoplastymentioning

confidence: 99%

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The past, present and future of augmentation cystoplasty

2011

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What's known on the subject? and What does the study add? There is a wealth of evidence on the development, indications, outcomes and complications of augmentation cystoplasty (AC). Over the last decade, new evidence has been emerging to influence our clinical practice and application of this technique. AC is indicated as part of the treatment pathway for both neurogenic and idiopathic detrusor overactivity, usually where other interventions have failed or are inappropriate. The most commonly used technique remains augmentation with a detubularised patch of ileum (ileocystoplasty). Controversy persists over the role of routine surveillance following ileocystoplasty for the detection of subsequent bladder carcinoma; however the indication for surveillance after gastrocystoplasty is clearer due to a rising incidence of malignancy in this group. Despite a reduction in the overall numbers of AC operations being performed, it clearly still has a role to play, which we re‐examine with contemporary studies from the last decade.

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Section: History Of Augmentation Cystoplastymentioning

confidence: 99%

Section: History Of Augmentation Cystoplastymentioning

confidence: 99%

The past, present and future of augmentation cystoplasty

2011

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“…Tissue engineering has been proposed as a strategy for urinary tract substitution. Numerous synthetic materials and natural tissues have been used in experimental and clinical settings for the reconstruction of functionally deficient bladders 1,2 . However, despite keen interest in this field, these attempts have usually failed due to mechanical, structural, functional, or biocompatible problems.…”

Section: Introductionmentioning

confidence: 99%

“…Collagen is an attractive biological material because it is widely available, easily purified and molded into various forms such as films, membranes and sponges. However, when plain collagen was applied to the urinary tract, it had a tendency to lose its tensile strength prematurely and was found to be too soft to suture reliably 2 . To overcome these problems, we developed a novel bladder reconstruction model using a synthetic collagen sponge pre‐embedded within the omentum.…”

Section: Introductionmentioning

confidence: 99%

Bladder reconstruction using a collagen patch prefabricated within the omentum

et al. 2006

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Objective: We present our experience with a novel bladder reconstruction model using a collagen sponge pre-embedded within the omentum. The aim of the study is to evaluate tissue regeneration of the reconstructed bladder and the effect of prefabricating the collagen patch within the omentum. Materials and methods: Twenty pigs were divided into three groups. For the prefabricated patch group (PFP; n = 10), collagen sponge was inserted into the omentum. After 1 week, the pigs underwent a hemicystectomy and the sponge with an attached omental flap was brought to close the defect. For the non-prefabricated patch group (NPFP; n = 6), pigs received hemicystectomy and closure with a collagen sponge without prefabricating in the omentum. Four other pigs received hemicystectomy alone as a control (C; n = 4). All animals in the NPFP and C groups, and 7 of 10 in the PFP group were sacrificed at 4 or 8 weeks. Three other pigs in the PFP group were sacrificed at 12 weeks. Resected bladders were submitted to hematoxylin-eosin, and immunohistochemical staining. Results: All animals except for two in the NPFP group survived. At the time of grafting, the collagen sponge was covered with thick omental methothelial layers, and neo-vascularization from the omentum was observed. At each time point, only slight adhesion was observed around the patch in the PFP group, while severe adhesion between the patch and the bowel was observed in the NPFP group, suggesting that prefabricated collagen sponge within the omentum prevented urine leakage from the bladder. Histologically, the patch was well vascularized, and the luminal surface was covered with urothelium at 4 weeks in both groups. However, in the PFP group, there was mild inflammation in the submucosa and in-growth of smooth muscle derived from the adjacent muscle layers was observed with time, whereas severe inflammation was observed and in-growth of smooth muscle was limited in the NPF group. Conclusions: Prefabricating of a collagen patch within the omentum stimulated early neo-vascularization before grafting, and this procedure appears to offer an advantage for bladder reconstruction over a non-prefabricated procedure in terms of prevention of urine leakage and inflammation, and favorable tissue regeneration.

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“…Diversos autores afirman que el urotelio reepitelizaría el aumento vesical realizado con casi cualquier material con el que estuviera en contacto. Hay referencias del uso de papel, silicona, goma, etc 59 . Todos estos materiales se podrían usar para ampliación total o parcial, temporal, retirados tras la regeneración vesical 51 .…”

Section: Otros Tipos De Aumento Vesicalunclassified

Histerocistoplastias: estudio experimental = Histerocistoplastias: An experimental study

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Media de la glucosa en cada subgrupo. Gráfico 4 Dispersión de la urea. Gráfico 5 Media de la urea en cada técnica quirúrgica. Gráfico 6 Media de la urea en cada subgrupo. Gráfico 7 Dispersión de la creatinina. Gráfico 8 Media de la creatinima en cada técnica quirúrgica. Gráfico 9 Media de la creatinina en cada subgrupo. Gráfico 10 Dispersión de la ALT. Gráfico 11 Media de la ALT en cada técnica quirúrgica. Gráfico 12 Media de la ALT en cada subgrupo. Gráfico 13 Dispersión de la AST. Gráfico 14 Media de la AST en cada técnica quirúrgica. Gráfico 15 Media de la AST en cada subgrupo. Gráfico 16 Dispersión de las proteínas plasmáticas totales. Gráfico 17 Media de las proteínas plasmáticas totales en cada técnica quirúrgica. Gráfico 18 Media de las proteínas plasmáticas totales en cada subgrupo. Gráfico 19 Dispersión del sodio. Gráfico 20 Media del sodio en cada técnica quirúrgica. Gráfico 21 Media del sodio en cada subgrupo. Gráfico 22 Dispersión del potasio. Gráfico 23 Media del potasio en cada técnica quirúrgica. Gráfico 24 Media del potasio en cada subgrupo. Gráfico 25 Dispersión del hematocrito. Gráfico 26 Media del hematocrito en cada técnica quirúrgica. Gráfico 27 Media del hematocrito en cada subgrupo. Gráfico 28 Dispersión de la hemoglobina. Gráfico 29 Media de la hemoglobina en cada técnica quirúrgica. Histerocistoplastias Estudio experimental Gráfico 30 Media de la hemoglobina en cada subgrupo. Gráfico 31 Dispersión de la CHCM. Gráfico 32 Media de la CHCM en cada técnica quirúrgica. Gráfico 33 Media de la CHCM en cada subgrupo. Gráfico 34 Dispersión de los leucocitos. Gráfico 35 Media de los leucocitos en cada técnica quirúrgica. Gráfico 36 Media de los leucocitos en cada subgrupo. Gráfico 37 Dispersión de los granulocitos. Gráfico 38 Media de los granulocitos en cada técnica quirúrgica. Gráfico 39 Media de los granulocitos en cada subgrupo. Gráfico 40 Dispersión de los granulocitos %. Gráfico 41 Media de los granulocitos % en cada técnica quirúrgica. Gráfico 42 Media de los granulocitos % en cada subgrupo. Gráfico 43 Dispersión de los neutrófilos. Gráfico 44 Media de los neutrófilos en cada técnica quirúrgica. Gráfico 45 Media de los neutrófilos en cada subgrupo. Gráfico 46 Dispersión de los neutrófilos %. Gráfico 47 Media de los neutrófilos % en cada técnica quirúrgica. Gráfico 48 Media de los neutrófilos % en cada subgrupo. Gráfico 49 Dispersión de los eosinófilos. Gráfico 50 Media de los eosinófilos en cada técnica quirúrgica. Gráfico 51 Media de los eosinófilos en cada subgrupo. Gráfico 52 Dispersión de los eosinófilos %. Gráfico 53 Media de los eosinófilos % en cada técnica quirúrgica. Gráfico 54 Media de los eosinófilos % en cada subgrupo. Gráfico 55 Dispersión de los linfocitos/ monocitos. Gráfico 56 Media de los linfocitos/ monocitos en cada técnica quirúrgica. Gráfico 57 Media de loslinfocitos/ monocitos en cada subgrupo. Gráfico 58 Dispersión de los linfocitos/ monocitos %. Gráfico 59 Media de loslinfocitos/ monocitos % en cada técnica quirúrgica. Gráfico 60 Media de loslinfocitos/ monocitos % en...

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Bladder Wall Substitution With Synthetic and Non-Intestinal Organic Materials

Abstract: Further improvements in the use of existing materials and development of new materials will hopefully result in clinically successful grafts for bladder wall replacement and for whole bladder substitution.

Cited by 77 publications

References 77 publications

The past, present and future of augmentation cystoplasty

The past, present and future of augmentation cystoplasty

Bladder reconstruction using a collagen patch prefabricated within the omentum

Histerocistoplastias: estudio experimental = Histerocistoplastias: An experimental study

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