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Aim Laparoscopy is common in abdominal surgery. Trocar site hernia (TSH) is a most likely underestimated complication. Among risk factors, obesity, the use of larger trocars and the umbilical trocar site has been described. In a previous study, CT scan in the prone position upon a ring was found to be a reliable method for the detection of TSH in obese. Our aim was to examine the incidence of TSH after gastric sleeve. Material and Methods 79 patients subjected to laparoscopic gastric sleeve in 2011-2016 were examined using CT in the prone position upon a ring. Symptoms of TSH were assessed using a digital survey. Results The incidence of trocar site hernia was 17 out of 79 (21,5 %), all at the umbilical trocar site. The mean follow-up time was 37 months. There was no clear correlation between symptomatic TSH and TSH on CT. Conclusions The incidence of TSH is high in this group of patients. Up to follow-up, none of the patients had been subjected to hernia repair. Although the consequence of trocar site hernia can be serious, the proportion of symptomatic TSH is unknown.

P060 TROCAR SITE HERNIA AFTER GASTRIC SLEEVE