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KMID : 0371320110810020111
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Journal of the Korean Surgical Society
2011 Volume.81 No. 2 p.111 ~ p.114
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Computed tomography classification for parastomal hernia
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Seo Su-Han
Kim Hee-Jung
Oh Seung-Yeop
Suh Kwang-Wook
Lee Jei-Hee
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Abstract
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Purpose: The aim of this study was to investigate the clinical and radiological incidence of parastomal hernia.
Methods: We reviewed, retrospectively, 83 patients with end colostomy operated on from January 2003 to June 2009 at Ajou University hospital. Age, sex, surgical procedure type, body mass index (weight/length2), stoma size, and respiratory co-morbidity were documented. We compared the incidence of radiological and clinical parastomal hernia.
Results: There were 47 males (56.6%) and 36 females (43.4%). During an overall median follow-up of 30 months (range, 6 to 45 months), 24 patients (28.9%) developed a radiological parastomal hernia postoperatively and 20 patients (24.1%) presented clinical symptoms. Using computed tomography (CT) classification, the groups were as follows: type 0 (40, 48.2%), type Ia (19, 22.9%), type Ib (8, 9.6%), type II (4, 4.8%) and type III (12, 14.5%), with 63 asymptomatic patients and 20 symptomatic patients. The aperture size was significantly different between symptomatic and asymptomatic patients (76.45 mm vs. 49.41 mm; P = 0.000). There was a significant correlation between aperture size and the radiological type (P = 0.003).
Conclusion: This study showed the incidence of radiological parastomal hernia is acceptable compared to previous studies. CT classification may be useful to evaluate parastomal hernia.
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KEYWORD
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Parastomal hernia, Computed tomography, End colostomy
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