Trocar Site Hernia After Gastric Bypass

• BACKGROUND: The 5.2% rate of trocar site incisional hernia (TSIH) reported appears low in view of the proportion of TSIH repairs being performed. Detecting TSIH by clinical examination may be difficult in the obese. The correlation between clinical examination and a novel radiological examination for the detection of TSIH in obese patients was studied.MATERIALS AND METHODS: Twenty-six patients subjected to laparoscopic gastric bypass in 2010 underwent clinical and radiological examination by three independent assessors for each method, after a mean follow-up time of 33 months. The computed tomography was in the prone position upon a ring.RESULTS: At clinical examination, a TSIH was regarded to be present in six out of 26 patients and at CT scan in four. The Fleiss' Kappa for multiple raters was 0.40 (p = 0.184) with clinical examination and 1 (p <0.05) with CT scan. With CT scan, herniation was diagnosed in three of 26 umbilical trocar sites that had been closed at the index operation, and in one of the 130 other trocar sites that had not been closed.CONCLUSIONS: Clinical examination is not reliable when detecting TSIH in the obese. A CT scan in the prone position was extremely reliable and seems to have the potential of becoming the standard method for detecting TSIH in obese patients.

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MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Kirurgi (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Surgery (hsv//eng)

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