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Rivista di Pediatria, Neonatologia, Medicina dell’Adolescenza
e Neuropsichiatria Infantile

Indexed/Abstracted in: CAB, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
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Minerva Pediatrica 2015 Sep 10

lingua: Inglese

Use of LigaSure on bile duct in rats. An experimental study

Marte A., Pintozzi L.

Paediatric Surgery, Second University of Naples, Naples, Italy


AIM: The closure of a cystic duct during cholecystectomy by means of radiofrequency is still controversial. We report our preliminary experimental results with the use of LigaSure on common bile duct in rats.
MATERIALS AND METHODS: Thirty Wistar rats weighing 70 to 120gr were employed for this study. The animals were all anaesthetized with intraperitoneal Ketamine and then divided into three groups. The first group (10 rats, Group C) underwent only laparotomy and isolation of the common bile duct. The second (10 rats, Group M) underwent laparotomy and closure of the common bile duct (CBD) with monopolar coagulation. The third group (10 rats, Group L) underwent laparotomy and sealing of the common bile duct with two application of LigaSure. Thereafter, all rats were kept in comfortable cages and were administered Dibenzamine for five days. They were all sacrificed on day 20. Through a laparotomy, the liver and bile duct were removed for histological examination. Blood samples were obtained to dose bilirubin, amylase and transaminase levels.
RESULTS: Mortality rate was 0 in the control group (C), 3/10 rats in group M and 0 in group L. In group L, the macroscopic examination showed a large choledochocele (3 – 3.5 cm x 1.5 cm) with few adhesions. At the histological examination there was optimal sealing of the common bile duct in 9/10 rats. In group M, 2/10 rats had liver abscesses, 3/10 rats had choledochocele and 5/10 rats, biliary peritonitis. There was intense tissue inflammation and the dissection was difficult. Analyses of blood samples showed an increase in total bilirubin, aspartate aminotransferase (AST) and alanine amitransferase (ALT) in groups M and L.
CONCLUSIONS: The preliminary results of our study confirm that radiofrequency can be safely used for the closure of the common bile duct. The choledochocele obtained with this technique could represent a good experimental model. These results could be a further step for using the LigaSure in clipless cholecistectomy.

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