Authors: U Jersenius D Fors S Rubertsson D Arvidsson
Publish Date: 2007/02/01
Volume: 21, Issue: 2, Pages: 315-320
Abstract
Twelve piglets underwent laparoscopic surgery during CO2 pneumoperitoneum each animal receiving three 6 cm long transections into the liver parenchyma made with ultrasonic dissector ultrasonic shears and vessel sealing system respectively Endpoints were bleeding operation time and gas embolization The transections and embolization events evaluated with transesophageal echocardiography were video recorded Bleeding and embolization were also assessed on video tapes and operating time measured Arterial blood gases were recorded on lineThe ultrasonic dissector was least advantageous in terms of bleeding and operation time Gas embolization was more frequent with the vessel sealing system than with the ultrasonic dissector and ultrasonic shears During two episodes of gas embolization pCO2 increased and pO2 and pH decreasedUse of all three devices is feasible Bleeding and operation time are greatest with the ultrasonic dissector Gas embolization occurs during transection though in most instances it is completely harmless Laparoscopic liver surgery with these techniques used may pose a risk of gas embolization with clinical implications Monitoring for such events is probably to be recommended
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