Urolithiasis on Absorbable and Non-Absorbable Suture materials in the Rabbit Bladder

Morris, Michael; Baquero, A; Redovan, E; Mahoney, Elizabeth M.; Bannett, A. D.

doi:10.1016/s0022-5347(17)45758-2

Cited by 44 publications

(21 citation statements)

References 4 publications

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“…Provavelmente as alterações urinárias constatadas neste estudo devem-se tanto ao emprego de implante, quanto ao do fio de sutura, materiais estranhos ao tecido vesical, que, além de ocasionarem alterações na parede da bexiga, serviram de base para a agregação e formação de cálculos (MORRIS et al, 1986). Outro possível fator para essa ocorrência relaciona-se ao tipo de dieta oferecida aos animais, pois as rações comerciais para coelhos são alcalinas, elevando o pH urinário e favorecendo a cristalúria (KIWULL-SCHÖNE et al, 2005).…”

Section: Resultsunclassified

Cistoplastia experimental em coelhos (Oryctolagus cuniculus) com peritônio bovino conservado em glicerol a 98%

et al. 2008

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IICistoplastia experimental em coelhos (Oryctolagus cuniculus) com peritônio bovino conservado em glicerol a 98% INTRODUÇÃOA utilização de membranas biológicas, no Brasil, teve início a partir da implantação experimental de dura-máter homóloga, conservada em glicerina, na substituição de segmento dural de cães (PIGOSSI, 1967).O peritônio bovino é uma membrana biológica de origem animal, composta quase que exclusivamente de colágeno, possuindo, portanto, baixa antigenicidade. Além disso, já há algum tempo sabe-se que este material apresenta fácil obtenção e estocagem, esterilização viável, praticidade ao I Departamento de Morfologia e Fisiologia Veterinária, Faculdade de Ciências Agrárias e Veterinárias (FCAV), Universidade Estadual Paulista (UNESP), Campus Jaboticabal. Via de Acesso Prof. Paulo Donato Castelanne, s/n, 14884-900, Jaboticabal, SP, Brasil. Email: mrfmachd@fcav.unesp.br. *Autor para correspondência. II Faculdade São Luís, Jaboticabal, SP, Brasil.Recebido para publicação 24.04.07 Aprovado em 11.06.08

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Section: Resultsunclassified

Cistoplastia experimental em coelhos (Oryctolagus cuniculus) com peritônio bovino conservado em glicerol a 98%

et al. 2008

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“…However, maybe the lithogenic potential could be related to the capacity of the applied material induce inflammatory reaction and some studies were made using absorbable and non-absorbable sutures (17). In our experiment, we used materials that were absorbed after a significant amount of time, and there was a significant difference between the median weight of the bladders that received BPCA grafts and that were harvested after 4 weeks and after 8 weeks, when the inflammatory response was lower.…”

Section: Discussionmentioning

confidence: 99%

Characterization of the deposition of collagen fibers and Lithogenic potential in bladder of rats submitted to a sugar cane biopolymer graft

et al. 2012

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ARTIcLE INFO _________________________________________________________ ___________________Objectives: Suture materials are widely used in urology. The interaction of these materials with the extracellular matrix in the inflammatory process can be estimated by stereology of collagen fibers and the present study was designed to determine the behavior of the bladder tissue of rats to grafts of the biopolymer of sugar cane (BPCA), and the inflammation and intravesical stone formation compared to the polyglactin 910. Materials and Methods: 42 Wistar rats were divided in four groups: Group I (n = 10) rats submitted to bladder implantation of ~4-0 BPCA suture graft and euthanized at 4 weeks; Group II (n = 10) rats submitted to bladder implantation of 4-0 polyglactin 910 suture graft and euthanized at 4 weeks; Group III (n = 12) rats submitted to bladder implantation of ~4-0 BPCA suture graft and euthanized at 8 weeks; Group IV (n = 10) rats submitted to bladder implantation of 4-0 polyglactin 910 suture graft and euthanized at 8 weeks. Bladders collected at necropsy were analyzed for their weight and the presence of grafts and calculi. Sections were prepared for stereological analysis of collagen fibers. Results: The bladder weight was higher in group I, particularly in the presence of bladder stones. The presence of the graft was observed in 100% (group I), 80% (group II), 91.6% (group III) and 30% (group IV); polyglactin 910 showed an absorption of 70% in this period. The stereological analysis showed a higher volume density of collagen fibers in group I versus other groups (p < 0.001). Conclusion:The BPCA was a material with good integration into the bladder of rats; its absorption was slower than that of the polyglactin 910. The presence of urinary stones was lower in bladders with implantation of BPCA, particularly after 8 weeks. There was a greater initial inflammatory response to BPCA graft that was directly related to the increase in bladder weight and the presence of urinary stones, but that equalized the results of polyglactin 910 after 8 weeks.

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“…Despite the admittedly relatively small number of experimental animals, similarly positive results with the aforementioned thin thread in ureteral surgery speak in favor of its application [6].…”

Section: Discussionmentioning

confidence: 99%

“…Suture materials in the genitourinary tract are foreign bodies which attract both calcification and crystallization germs via direct contact with urine in relation to the time factor, thus hazarding the success of surgical intervention by lithogenesis, obstruction of the ducts and/or secondary infections [1][2][3][4][5][6][7],…”

Section: Introductionmentioning

confidence: 99%

Behavior of Different Suture Materials in the Urinary Bladder of the Rabbit with Special Reference to Wound Healing, Epithelization and Crystallization

Hanke¹,

Timm²,

Falk³

et al. 1994

Urol Int

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Five urinary bladder incisions were performed in 16 rabbits and the defects closed by plain catgut 4-0, chromic catgut 4-0, polypropylene 4-0, polyglactin 910 4-0 and polyglactin 910 8-0 in the form of an all-layer suture, thereby obtaining a total of 80 suture sites. The running sutures in 8 animals were reviewed by light microscopy after 1, 2, 7 and 15 weeks, and in 8 additional animals after 3 days, 1,2,7 and 15 weeks by scanning electron microscopy. Moreover, we analyzed and compared the autopsy findings on gross inspection, the urinary sediments and urinary cultures of the individual animals. Scanning electron-microscopic evaluations showed that epithelization of the intraluminal suture portions can be accomplished after 3 days already. Reduced suture strength and rapid absorption of the suture material prevent later postoperative incrustations. Light-microscopic inspection of the segments of the bladder wall bearing this suture material suggests that a minor inflammatory tissue response around the suture material – with polyglactin 910 8-0 in particular – is more likely to enhance regeneration of the tunica muscularis and to prevent formation of cysts than seen with a long-standing highly inflammatory tissue response around the suture site of catgut threads. In the animal experiment, the polyglactin 910 suture has shown sufficient firmness and proved to be superior to any other suture material as regards the reaction to foreign bodies and inclination to incrustation. A thinner thread used for sutures in the efferent urinary tract would thus have to be given preference over others. Plain catgut, chromic catgut and polyglactin 910 sutures, 4-0 in strength, were found to be disadvantageous in the animal model. The nonabsorbable propylene thread turned out to be inadequate in urinary bladder surgery.

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Urolithiasis on Absorbable and Non-Absorbable Suture materials in the Rabbit Bladder

Cited by 44 publications

References 4 publications

Cistoplastia experimental em coelhos (Oryctolagus cuniculus) com peritônio bovino conservado em glicerol a 98%

Cistoplastia experimental em coelhos (Oryctolagus cuniculus) com peritônio bovino conservado em glicerol a 98%

Characterization of the deposition of collagen fibers and Lithogenic potential in bladder of rats submitted to a sugar cane biopolymer graft

Behavior of Different Suture Materials in the Urinary Bladder of the Rabbit with Special Reference to Wound Healing, Epithelization and Crystallization

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