Análise de fatores preditivos de ressecção visceral no tratamento operatório de doentes portadores de hérnia incisional gigante com perda de domicílio submetidos a pneumoperitônio progressivo pré-operatório / Predictors analysis for visceral ressection surgery in the treatment of patients with giant incisional hernia with loss of domain undergoing preoperative progressive pneumoperitoneum

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

INTRODUCTION: Incisional hernia (IH) occur in 2 to 15% of pacients that undergo abdominal surgery. Progressive preoperative pneumoperitoneum (PPP) was described in 1940 by Goñi Moreno for the treatment of incisional hernia with loss of domain (IHLD). Protocol for treatment of IHLD was stablished at Serviço de Cirurgia Eletiva da Divisão de Clínica Cirúrgica III do Hospital das Clínicas e Disciplina de Cirurgia Geral da Faculdade de Medicina da Universidade de São Paulo SCE DCCIII DCG HC FMUSP, using CT Scan for hernia sac volume (HSV) and abdominal cavity volume (ACV) calculation and PPP. Visceral ressection (parcial ou total ressection of intra abdominal organs) was associated in some cases to avoid abdominal compartment syndrome (ACS). The objective of this study was to find predictors that could evaluate the need of visceral ressection in patients submitted into surgical treatment of IHLD with PPP. Where analysed data of 23 patients with IHLD were operated from February 2001 to April 2008. We used the Chi-square test and Fishers exact test to evaluate the association between qualitative variables and Students t test and Mann-Whitney test for comparison of quantitative variables. We stablished that only patients with CT Scan calculated volume relation (VR=HSV/ACV) greater than or equal to 25% (VR25%) should be included in this protocol. They were divided into 2 groups: The visceral ressection group (VSG) and not visceral ressection group (NVRG). RESULTS: Of the 23 patients, 10 (43.5%) were submitted to visceral ressection. The intra-abdominal pressure after temporary reduction of hernial content into and closure of the abdominal cavity (PIAfechado) and the increment of intra-abdominal pressure between the pressure at the begining of operation (PIAinicial) and PIAfechado (PIA) were different between the two groups analysed (VRG and NVRG). CONCLUSIONS: The PIAfechado and PIA can be used as predictors for visceral ressection. The visceral ressection should be considered when the PIAfechado is more than 18 cm of water and PIA is more than 9 cm of water. The monitoring of the PIA at the beginning of operation, after temporary closure and after surgery is necessary and essential in this type of operation.

ASSUNTO(S)

surgical mesh humanos hérnia abdominal loss of domain parede abdominal/cirurgia pneumoperitônio artificial visceral ressection intestines/surgery omentum/surgery preoperative care perda de domicílio omento/cirurgia cuidados pré-operatórios artificial pneumoperitoneum abdominal hernia abdominal wall/surgery telas cirúrgicas humans intestinos/cirurgia ressecção visceral

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