| Nome: | Descrição: | Tamanho: | Formato: | |
|---|---|---|---|---|
| 1.48 MB | Adobe PDF |
Orientador(es)
Resumo(s)
A abordagem médico-cirúrgica da obstrução da junção pielo-ureteral (OJPU) permanece uma das maiores controvérsias da Urologia Pediátrica. Carecemos de instrumentos que permitam predizer com acuidade quais as crianças que poderão ser vigiadas conservadoramente e quais as que necessitarão de cirurgia corretiva.
Neste trabalho procedeu-se a um estudo retrospetivo com o objetivo de rever a casuística do Hospital Garcia de Orta E.P.E. (HGO), relativamente às crianças com diagnóstico de OJPU, submetidas a pieloplastia corretiva. Entre outros aspetos, caracterizaram-se e analisaram-se numa amostra de 34 crianças operadas, os principais dados pré e pós-operatórios imediatos, nomeadamente ecográficos e renográficos.
A abordagem cirúrgica inicial adotada foi, em todos os casos, a pieloplastia aberta desmembrada e modificada por Anderson-Heynes (PAH); a taxa de reintervenção foi de 5,5%. A maioria das ecografias pré-operatórias (80,8%) documentou uma hidronefrose (HN) moderada a grave. A mediana das diferenças entre os valores do diâmetro ântero-posterior do bacinete (DAP) pré e pós-operatório foi de 8 [1,12]mm (p<0,001). Verificou-se uma evolução favorável da função renal diferencial (FRD) após a cirurgia, inclusivamente nas crianças com FRD imediatamente pré-operatória inferior a 45%, sendo a mediana das diferenças entre os valores de FRD pré e pós-operatória neste subgrupo igual a 4,5 [1,9;9,3] % (p<0,01).
Alguns biomarcadores urinários, associados à progressão de lesão parenquimatosa renal, poderão facultar informação complementar muito valiosa aos métodos diagnósticos atuais e ajudar na definição da melhor decisão terapêutica.
The management of children with congenital ureteropelvic junction obstruction (UPJO) remains one of the main Paediatric Urology controversies. There is still a lack of instruments that can accurately predict which children should be conservatively managed and those who benefit from corrective intervention. This study reviews the casuistic in Hospital Garcia de Orta E.P.E. of the children with presumptive UPJO diagnosis submitted to corrective pieloplasty. In a group of 34 children, amongst other aspects, the main pre and post op data (ultrasonographic and renographic) are characterized and analysed. In all cases the initial surgical approach adopted was a Anderson-Heynes pieloplasty; reintervencion occurred in 5,5% of cases. Most pre op ultrasonographic studies (80,8%) documented moderate to severe hydronephrosis. The median difference in the antero-posterior diameter of the renal pelvis after surgery was 8 [1,12] mm (p<0,001). A global favourable evolution was noted in the renographic parameters after pieloplasty, even in those with an immediate pre op differential renal function (DRF) under 45%. This subgroup showed a median difference in the DRF after surgery of 4,5 [1,9;9,3] % (p<0,01). Some urinary biomarkers, associated with parenchymal renal lesion progression, may add precious complementary information to the standard diagnostic tools guiding the best therapeutic approach.
The management of children with congenital ureteropelvic junction obstruction (UPJO) remains one of the main Paediatric Urology controversies. There is still a lack of instruments that can accurately predict which children should be conservatively managed and those who benefit from corrective intervention. This study reviews the casuistic in Hospital Garcia de Orta E.P.E. of the children with presumptive UPJO diagnosis submitted to corrective pieloplasty. In a group of 34 children, amongst other aspects, the main pre and post op data (ultrasonographic and renographic) are characterized and analysed. In all cases the initial surgical approach adopted was a Anderson-Heynes pieloplasty; reintervencion occurred in 5,5% of cases. Most pre op ultrasonographic studies (80,8%) documented moderate to severe hydronephrosis. The median difference in the antero-posterior diameter of the renal pelvis after surgery was 8 [1,12] mm (p<0,001). A global favourable evolution was noted in the renographic parameters after pieloplasty, even in those with an immediate pre op differential renal function (DRF) under 45%. This subgroup showed a median difference in the DRF after surgery of 4,5 [1,9;9,3] % (p<0,01). Some urinary biomarkers, associated with parenchymal renal lesion progression, may add precious complementary information to the standard diagnostic tools guiding the best therapeutic approach.
Descrição
Trabalho Final do Curso de Mestrado Integrado em Medicina, Faculdade de Medicina, Universidade de Lisboa, 2015
Palavras-chave
Obstrução ureteral Pediatria Urologia Terapêutica
