Abstract
Background
Studies have shown laparoscopic liver resection to be feasible and safe. Segmental hepatectomy is appealing because it allows a reduction of intraoperative blood loss and blood replacement by dividing tissues along the anatomic planes. However, an effective technique that allows the closure of segmental vessels during systematic segmentectomies before resection still is lacking in laparoscopic surgery.
Methods
A simple technique guided by intraoperative ultrasound to facilitate laparoscopic liver segmentectomies is described. Coagulative desiccation of the vessels feeding the segment to be resected was induced by introduction of a “cooled-tip” radiofrequency electrode percutaneously under intraoperative ultrasound guidance at the level of the vessels. The intrahepatic parenchymal change induced by the radiofrequency was monitored using intraoperative ultrasound. After the application of energy to destroy the vessels feeding that segment, an area of marked discoloration on the surface of the liver became obvious. Liver parenchymal transection followed without any form of hepatic inflow occlusion.
Results
For this study, 10 patients underwent a segmental resection using the described technique. The resection time ranged from 40 to 60 min including the time required to destroy the feeding vessels with radiofrequency. The intraoperative blood loss was less than 50 ml and did not necessitate intra- or postoperative blood transfusion. The surgical margins of the specimen were free of disease. There was no morbidity or mortality.
Conclusions
The preliminary experience shows that the reported technique is safe and effective, with the potential to make even difficult laparoscopic liver segmentectomies for segments such as VII and VIII, easier to manage.
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Navarra, G., Bartolotta, M., Scisca, C. et al. Ultrasound-guided radiofrequency-assisted segmental arterioportal vascular occlusion in laparoscopic segmental liver resection. Surg Endosc 22, 1724–1728 (2008). https://doi.org/10.1007/s00464-007-9701-2
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DOI: https://doi.org/10.1007/s00464-007-9701-2