Page 162 - Prevention and Treatment of Incisional Hernia- New Techniques and Materials

Chapter 8
Methods
In literature many di erent de nitions of LIH are proposed but consensus is lacking, as shown in table 1. Commonly used parameters to de ne large abdominal hernia include width, length, transverse size and the surface calculation of an ellipse (1⁄2 length x 1⁄2 width x π). For this review LIH is de ned as ventral incisional hernia with a fascial defect of 10cm or more in any direction according to the de nition of the European Hernia Society(21) or a defect surface of 100cm2 or more.
Table 1. De nitions of large incisional hernias in the literature.
Author
Tanaka EY, 2010(22) Muysoms FE, 2009(21) Ammaturo C, 2005(23) Dumanian GA, 2003(24) Korenkov M, 2001(25) Chevrel JP, 2000(26)
Search strategy
De nition of large hernia
≥ 10 cm width or length
≥ 10 cm width
≥ 10 cm width
> 10-15 cm transverse size ≥ 10 cm width or length
≥ 15 cm width
A systematic review of the literature was conducted to detect all treatment strategies of large incisional hernia. An electronic search of Embase, Pubmed and the Cochrane Central Register of Controlled Trials was performed on May 2nd, 2014. Additionally, a cross-reference search of review articles in leading journals and manual research of reference lists of all included studies was conducted to identify articles published on the treatment of LIH. There was no restriction on language, study type or publication year.
Study inclusion and exclusion criteria
Only treatment studies involving adult human subjects with LIH of the ventral abdominal wall were included. Ventral wall hernias include midline, transvers, subcostal, (para)umbilical and paramedian locations. LIH was de ned as a fascial defect (hernial ori ce) measuring 10cm or more in any direction or a surface of 100cm2 or more. The following study types were included: RCT, prospective and retrospective cohort studies, case-control studies and case series.
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