Avaliação da perda glomerular após isquemia quente arteriovenosa, arterial ou seletiva no modelo suíno
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UERJ |
Texto Completo: | http://www.bdtd.uerj.br/handle/1/12324 |
Resumo: | The objective of this study was to evaluate, in pigs, the renal function repercussion after warm ischemia with selective arterial clamping (left renal artery caudal branch), through functional tests and morphometric stereological analysis, and compare with the results obtained after arteriovenous occlusion or isolated renal artery clamping. Thirty-two animals were randomly allocated into four groups (with eight animals in each group) were used in the study. In the control group (SHAM), both kidneys were exclusively submitted to pneumoperitoneum. In the (AV) group, the left renal artery and vein were clamped in block. In group (A), the left renal artery was singly clamped. And in group (S) the left renal artery caudal branch was selectively occluded. For all groups, the kidneys were submitted to 30 minutes of warm ischemia by a laparoscopic approach. The right kidney was not manipulated during the experiment and was used as control. The animals were euthanized after 21 days, and kidneys were collected. Renal fragments were processed for stereological morphometrical evaluetion. Glomerular mean volume (GMV), glomerular volume density (Vv [glom]), cortico-medullary analysis, glomerular density and number of nephrons were assessed. Creatinine and urea serum levels were also assessed preoperatively, 10 days after surgery and before euthanasia. In AV group was observed a reduction of 24.5% in the Vv [Glom] of the left kidney and a reduction of 25.4% and 19.2% in the VGM and number of glomeruli, respectively, when compared to the right kidney. Similarly, when compared the Vv [Glom], GMV and Nv (glom / rim) of the left kidney AV group with those of the SHAM, A and S groups, a significant decrease was found. On the other hand, in the present study, the selective arterial clamping technique was not superior to isolated renal artery occlusion. There was no significant difference in serum creatinine and urea levels at the different moments of the experiment. Based on this study, arterial or selective clamping techniques should be preferred in relation to arteriovenous clamping, since they have a lower glomerulus deleterious effect. Moreover, in the present study, the technique of selective arterial occlusion did not bring any benefit, when compared to the clamping of the main renal artery. |
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Sampaio, Francisco José Barcelloshttp://lattes.cnpq.br/4426830285523015Souza, Diogo Benchimol dehttp://lattes.cnpq.br/2970551390843240Favorito, Luciano Alveshttp://lattes.cnpq.br/0256126734685935Sampaio, Marco Aurélio Pereirahttp://lattes.cnpq.br/2974617010463918Rubinstein, Mauricio Gonçalveshttp://lattes.cnpq.br/3414824451934994Miguel, Gustavo Peixoto Soareshttp://lattes.cnpq.br/7361839237197842Costa, Waldemar Silvahttp://lattes.cnpq.br/6986274610951714http://lattes.cnpq.br/7311483375547202Bechara, Gustavo Ruschi2021-01-06T20:32:08Z2018-06-152016-12-14BECHARA, Gustavo Ruschi. Avaliação da perda glomerular após isquemia quente arteriovenosa, arterial ou seletiva no modelo suíno. 2016. 71 f. Tese (Doutorado em Sistema Urogenital; Sistema Cardiovascular; Técnica operatória e Cirurgia Experimental) - Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 2016.http://www.bdtd.uerj.br/handle/1/12324The objective of this study was to evaluate, in pigs, the renal function repercussion after warm ischemia with selective arterial clamping (left renal artery caudal branch), through functional tests and morphometric stereological analysis, and compare with the results obtained after arteriovenous occlusion or isolated renal artery clamping. Thirty-two animals were randomly allocated into four groups (with eight animals in each group) were used in the study. In the control group (SHAM), both kidneys were exclusively submitted to pneumoperitoneum. In the (AV) group, the left renal artery and vein were clamped in block. In group (A), the left renal artery was singly clamped. And in group (S) the left renal artery caudal branch was selectively occluded. For all groups, the kidneys were submitted to 30 minutes of warm ischemia by a laparoscopic approach. The right kidney was not manipulated during the experiment and was used as control. The animals were euthanized after 21 days, and kidneys were collected. Renal fragments were processed for stereological morphometrical evaluetion. Glomerular mean volume (GMV), glomerular volume density (Vv [glom]), cortico-medullary analysis, glomerular density and number of nephrons were assessed. Creatinine and urea serum levels were also assessed preoperatively, 10 days after surgery and before euthanasia. In AV group was observed a reduction of 24.5% in the Vv [Glom] of the left kidney and a reduction of 25.4% and 19.2% in the VGM and number of glomeruli, respectively, when compared to the right kidney. Similarly, when compared the Vv [Glom], GMV and Nv (glom / rim) of the left kidney AV group with those of the SHAM, A and S groups, a significant decrease was found. On the other hand, in the present study, the selective arterial clamping technique was not superior to isolated renal artery occlusion. There was no significant difference in serum creatinine and urea levels at the different moments of the experiment. Based on this study, arterial or selective clamping techniques should be preferred in relation to arteriovenous clamping, since they have a lower glomerulus deleterious effect. Moreover, in the present study, the technique of selective arterial occlusion did not bring any benefit, when compared to the clamping of the main renal artery.O objetivo desse trabalho foi avaliar, no modelo suíno, a repercussão da isquemia renal quente, após clampeamento arterial seletivo (ramo caudal da artéria renal), através de testes funcionais e análise estereológica morfométrica, e comparar com os resultados obtidos após oclusão arteriovenosa ou artérial isolada. Trinta e dois animais foram distribuídos aleatoriamente em quatro grupos (com oito animais em cada grupo) foram utilizados no estudo. No grupo controle (SHAM), ambos os rins foram submetidos exclusivamente ao pneumoperitônio. No grupo (AV) foi realizado o clampeamento em bloco da artéria e veia renal esquerda. No grupo (A) foi realizado o clampeamento da artéria renal esquerda isolada. E no grupo (S) o ramo caudal da artéria renal esquerda foi ocluído seletivamente. Para todos os grupos, os rins foram submetidos a 30 minutos de isquemia quente por uma abordagem laparoscópica. O rim direito não foi manipulado durante o experimento e foi utilizado como controle. Os animais foram sacrificados após 21 dias e os rins removidos. Os fragmentos renais foram processados para avaliação estereológica. O volume glomerular médio (VGM), a densidade volumétrica glomerular (Vv [glom]), a relação córtico-medular, a densidade glomerular e o número de glomérulos foram avaliados. O níveis séricos de creatinina e ureia também foram mensurados no pré-operatório, 10 dias após a cirurgia e antes da eutanásia. No grupo AV observou-se uma redução de 24,5% no Vv [Glom] do rim esquerdo e uma redução de 25,4% e 19,2% no VGM e número de glomérulos respectivamente, quando comparado ao rim direito. Do mesmo modo, quando comparado o Vv [Glom], VGM e Nv(glom/rim) do rim esquerdo do grupo AV com o dos grupos SHAM, A e S uma diminuição importante foi encontrada. Por outro lado, no presente estudo, a técnica de clampeamento arterial seletiva não foi superior a oclusão da artéria renal isolada.Não houve diferença significativa nos níveis séricos de creatinina e ureia nos diferentes momentos do experimento. Com base neste estudo, as técnicas de pinçamento arterial ou seletiva devem ser preferidas em relação ao clampeamento arteriovenoso, por apresentarem menor efeito deletério ao glomérulo. Além disso, no presente estudo, a técnica de oclusão arterial seletiva não trouxe nenhum benefício, quando comparada ao clampeamento da artéria renal principal.Submitted by Boris Flegr (boris@uerj.br) on 2021-01-06T20:32:08Z No. of bitstreams: 1 TESE_FINAL_PUBLICADA_Gustavo_Ruschi_Bechara.pdf: 5309958 bytes, checksum: ff4362ed362c8e7d7c034bae07fdfa65 (MD5)Made available in DSpace on 2021-01-06T20:32:08Z (GMT). No. of bitstreams: 1 TESE_FINAL_PUBLICADA_Gustavo_Ruschi_Bechara.pdf: 5309958 bytes, checksum: ff4362ed362c8e7d7c034bae07fdfa65 (MD5) Previous issue date: 2016-12-14application/pdfporUniversidade do Estado do Rio de JaneiroPrograma de Pós-Graduação em Fisiopatologia e Ciências CirúrgicasUERJBRCentro Biomédico::Faculdade de Ciências MédicasPartial nephrectomyLaparoscopyWarm ischemiaVascular clampingNefrectomia parcialLaparoscopiaIsquemia quenteClampeamentoRins- Cirurgia-LaparoscopiaCirurgia experimentalCNPQ::CIENCIAS DA SAUDE::MEDICINA::CIRURGIA::CIRURGIA UROLOGICAAvaliação da perda glomerular após isquemia quente arteriovenosa, arterial ou seletiva no modelo suínoGlomerular loss evaluation after arteriovenous, arterial or selective ischemia in the porcine modelinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UERJinstname:Universidade do Estado do Rio de Janeiro (UERJ)instacron:UERJORIGINALTESE_FINAL_PUBLICADA_Gustavo_Ruschi_Bechara.pdfapplication/pdf5309958http://www.bdtd.uerj.br/bitstream/1/12324/1/TESE_FINAL_PUBLICADA_Gustavo_Ruschi_Bechara.pdfff4362ed362c8e7d7c034bae07fdfa65MD511/123242024-02-26 16:45:31.653oai:www.bdtd.uerj.br:1/12324Biblioteca Digital de Teses e Dissertaçõeshttp://www.bdtd.uerj.br/PUBhttps://www.bdtd.uerj.br:8443/oai/requestbdtd.suporte@uerj.bropendoar:29032024-02-26T19:45:31Biblioteca Digital de Teses e Dissertações da UERJ - Universidade do Estado do Rio de Janeiro (UERJ)false |
dc.title.por.fl_str_mv |
Avaliação da perda glomerular após isquemia quente arteriovenosa, arterial ou seletiva no modelo suíno |
dc.title.alternative.eng.fl_str_mv |
Glomerular loss evaluation after arteriovenous, arterial or selective ischemia in the porcine model |
title |
Avaliação da perda glomerular após isquemia quente arteriovenosa, arterial ou seletiva no modelo suíno |
spellingShingle |
Avaliação da perda glomerular após isquemia quente arteriovenosa, arterial ou seletiva no modelo suíno Bechara, Gustavo Ruschi Partial nephrectomy Laparoscopy Warm ischemia Vascular clamping Nefrectomia parcial Laparoscopia Isquemia quente Clampeamento Rins- Cirurgia- Laparoscopia Cirurgia experimental CNPQ::CIENCIAS DA SAUDE::MEDICINA::CIRURGIA::CIRURGIA UROLOGICA |
title_short |
Avaliação da perda glomerular após isquemia quente arteriovenosa, arterial ou seletiva no modelo suíno |
title_full |
Avaliação da perda glomerular após isquemia quente arteriovenosa, arterial ou seletiva no modelo suíno |
title_fullStr |
Avaliação da perda glomerular após isquemia quente arteriovenosa, arterial ou seletiva no modelo suíno |
title_full_unstemmed |
Avaliação da perda glomerular após isquemia quente arteriovenosa, arterial ou seletiva no modelo suíno |
title_sort |
Avaliação da perda glomerular após isquemia quente arteriovenosa, arterial ou seletiva no modelo suíno |
author |
Bechara, Gustavo Ruschi |
author_facet |
Bechara, Gustavo Ruschi |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Sampaio, Francisco José Barcellos |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/4426830285523015 |
dc.contributor.advisor-co1.fl_str_mv |
Souza, Diogo Benchimol de |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/2970551390843240 |
dc.contributor.referee1.fl_str_mv |
Favorito, Luciano Alves |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/0256126734685935 |
dc.contributor.referee2.fl_str_mv |
Sampaio, Marco Aurélio Pereira |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/2974617010463918 |
dc.contributor.referee3.fl_str_mv |
Rubinstein, Mauricio Gonçalves |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/3414824451934994 |
dc.contributor.referee4.fl_str_mv |
Miguel, Gustavo Peixoto Soares |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/7361839237197842 |
dc.contributor.referee5.fl_str_mv |
Costa, Waldemar Silva |
dc.contributor.referee5Lattes.fl_str_mv |
http://lattes.cnpq.br/6986274610951714 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/7311483375547202 |
dc.contributor.author.fl_str_mv |
Bechara, Gustavo Ruschi |
contributor_str_mv |
Sampaio, Francisco José Barcellos Souza, Diogo Benchimol de Favorito, Luciano Alves Sampaio, Marco Aurélio Pereira Rubinstein, Mauricio Gonçalves Miguel, Gustavo Peixoto Soares Costa, Waldemar Silva |
dc.subject.eng.fl_str_mv |
Partial nephrectomy Laparoscopy Warm ischemia Vascular clamping |
topic |
Partial nephrectomy Laparoscopy Warm ischemia Vascular clamping Nefrectomia parcial Laparoscopia Isquemia quente Clampeamento Rins- Cirurgia- Laparoscopia Cirurgia experimental CNPQ::CIENCIAS DA SAUDE::MEDICINA::CIRURGIA::CIRURGIA UROLOGICA |
dc.subject.por.fl_str_mv |
Nefrectomia parcial Laparoscopia Isquemia quente Clampeamento Rins- Cirurgia- Laparoscopia Cirurgia experimental |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS DA SAUDE::MEDICINA::CIRURGIA::CIRURGIA UROLOGICA |
description |
The objective of this study was to evaluate, in pigs, the renal function repercussion after warm ischemia with selective arterial clamping (left renal artery caudal branch), through functional tests and morphometric stereological analysis, and compare with the results obtained after arteriovenous occlusion or isolated renal artery clamping. Thirty-two animals were randomly allocated into four groups (with eight animals in each group) were used in the study. In the control group (SHAM), both kidneys were exclusively submitted to pneumoperitoneum. In the (AV) group, the left renal artery and vein were clamped in block. In group (A), the left renal artery was singly clamped. And in group (S) the left renal artery caudal branch was selectively occluded. For all groups, the kidneys were submitted to 30 minutes of warm ischemia by a laparoscopic approach. The right kidney was not manipulated during the experiment and was used as control. The animals were euthanized after 21 days, and kidneys were collected. Renal fragments were processed for stereological morphometrical evaluetion. Glomerular mean volume (GMV), glomerular volume density (Vv [glom]), cortico-medullary analysis, glomerular density and number of nephrons were assessed. Creatinine and urea serum levels were also assessed preoperatively, 10 days after surgery and before euthanasia. In AV group was observed a reduction of 24.5% in the Vv [Glom] of the left kidney and a reduction of 25.4% and 19.2% in the VGM and number of glomeruli, respectively, when compared to the right kidney. Similarly, when compared the Vv [Glom], GMV and Nv (glom / rim) of the left kidney AV group with those of the SHAM, A and S groups, a significant decrease was found. On the other hand, in the present study, the selective arterial clamping technique was not superior to isolated renal artery occlusion. There was no significant difference in serum creatinine and urea levels at the different moments of the experiment. Based on this study, arterial or selective clamping techniques should be preferred in relation to arteriovenous clamping, since they have a lower glomerulus deleterious effect. Moreover, in the present study, the technique of selective arterial occlusion did not bring any benefit, when compared to the clamping of the main renal artery. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016-12-14 |
dc.date.available.fl_str_mv |
2018-06-15 |
dc.date.accessioned.fl_str_mv |
2021-01-06T20:32:08Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
BECHARA, Gustavo Ruschi. Avaliação da perda glomerular após isquemia quente arteriovenosa, arterial ou seletiva no modelo suíno. 2016. 71 f. Tese (Doutorado em Sistema Urogenital; Sistema Cardiovascular; Técnica operatória e Cirurgia Experimental) - Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 2016. |
dc.identifier.uri.fl_str_mv |
http://www.bdtd.uerj.br/handle/1/12324 |
identifier_str_mv |
BECHARA, Gustavo Ruschi. Avaliação da perda glomerular após isquemia quente arteriovenosa, arterial ou seletiva no modelo suíno. 2016. 71 f. Tese (Doutorado em Sistema Urogenital; Sistema Cardiovascular; Técnica operatória e Cirurgia Experimental) - Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 2016. |
url |
http://www.bdtd.uerj.br/handle/1/12324 |
dc.language.iso.fl_str_mv |
por |
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por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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Universidade do Estado do Rio de Janeiro |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Fisiopatologia e Ciências Cirúrgicas |
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UERJ |
dc.publisher.country.fl_str_mv |
BR |
dc.publisher.department.fl_str_mv |
Centro Biomédico::Faculdade de Ciências Médicas |
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Universidade do Estado do Rio de Janeiro |
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Biblioteca Digital de Teses e Dissertações da UERJ |
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http://www.bdtd.uerj.br/bitstream/1/12324/1/TESE_FINAL_PUBLICADA_Gustavo_Ruschi_Bechara.pdf |
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Biblioteca Digital de Teses e Dissertações da UERJ - Universidade do Estado do Rio de Janeiro (UERJ) |
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