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01-05-2008 | New Technology

Laparoscopic blood-saving liver resection using a new radiofrequency-assisted device: preliminary report of an in vivo study with pig liver

Authors: Ana Navarro, Fernando Burdio, Enrique J. Berjano, Antonio Güemes, Ramón Sousa, Maria Rufas, Jorge Subirá, Ana Gonzalez, Jose M. Burdío, Tomás Castiella, Eloy Tejero, Miguel A. De Gregorio, Luis Grande, Ricardo Lozano

Published in: Surgical Endoscopy | Issue 5/2008

Abstract

Background

The aim of any device designed for liver resection is to allow blood saving and quick resections. This may be optimized using a minimally invasive approach. A radiofrequency-assisted device is described that combines a cooled blunt-tip electrode with a sharp blade on one side in an in vivo preliminary study using hand-assisted laparoscopy to perform partial hepatectomies.

Methods

Eight partial hepatectomies were performed on pigs with hand-assisted laparoscopy using the radiofrequency-assisted device as the only method for transection and hemostasis. The main outcome measures were transection time, blood loss, transection area, transection speed, blood loss per transection area, and tissue coagulation depth. The risk for biliary leak also was assessed using the methylene blue test.

Results

The transection time was 13 ± 7 min for a mean transected area of 34 ± 11 cm². The mean total blood loss was 26 ± 34 ml. The mean transection speed was 3 ± 1 cm²/min, and the blood loss per transection area was 1 ± 1 ml/cm². Abdominal examination showed no complications in nearby organs. One biliary leak was identified in one case using the methylene blue test. The transection surface was 34 ± 11 cm², and the mean tissue coagulation depth was 9 ± 2 mm. The inviability of the coagulated surface was assessed by adenine dinucleotide (NADH) staining.

Conclusions

The radiofrequency-assisted device has shown with a laparoscopic approach that it can perform liver resections faster and with less blood loss using a single device in a minimally invasive manner without vascular control than other commercial devices. The results show no significant differences with the same device used in an open procedure.

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Title: Laparoscopic blood-saving liver resection using a new radiofrequency-assisted device: preliminary report of an in vivo study with pig liver
Authors: Ana Navarro
Fernando Burdio
Enrique J. Berjano
Antonio Güemes
Ramón Sousa
Maria Rufas
Jorge Subirá
Ana Gonzalez
Jose M. Burdío
Tomás Castiella
Eloy Tejero
Miguel A. De Gregorio
Luis Grande
Ricardo Lozano
Publication date: 01-05-2008
Publisher: Springer-Verlag
Published in: Surgical Endoscopy / Issue 5/2008
Print ISSN: 0930-2794
Electronic ISSN: 1432-2218
DOI: https://doi.org/10.1007/s00464-008-9793-3

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Laparoscopic blood-saving liver resection using a new radiofrequency-assisted device: preliminary report of an in vivo study with pig liver

Abstract

Background

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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