What exactly is meant by "loss of domain" for ventral hernia? systematic review of definitions

Research output: Contribution to journalReview article

Authors

  • S G Parker
  • S Halligan
  • S Blackburn
  • A A O Plumb
  • A C J Windsor

Colleges, School and Institutes

External organisations

  • The Abdominal Wall Unit, University College London Hospital, University College London Hospitals NHS Foundation Trust, 235 Euston Road, London, NW1 2BU, UK. samgparker@nhs.net.
  • UCL Centre for Medical Imaging, Charles Bell House, 43-45 Foley Street, Fitzrovia, London, W1W 7TS, UK.
  • The Abdominal Wall Unit, University College London Hospital, University College London Hospitals NHS Foundation Trust, 235 Euston Road, London, NW1 2BU, UK.

Abstract

Large ventral hernias are a significant surgical challenge. "Loss of domain" (LOD) expresses the relationship between hernia and abdominal volume, and is used to predict operative difficulty and success. This systematic review assessed whether different definitions of LOD are used in the literature. The PubMed database was searched for articles reporting large hernia repairs that explicitly described LOD. Two reviewers screened citations and extracted data from selected articles, focusing on the definitions used for LOD, study demographics, study design, and reporting surgical specialty. One hundred and seven articles were identified, 93 full-texts examined, and 77 were included in the systematic review. Sixty-seven articles were from the primary literature, and 10 articles were from the secondary literature. Twenty-eight articles (36%) gave a written definition for loss of domain. These varied and divided into six broad groupings; four described the loss of the right of domain, six described abdominal strap muscle contraction, five described the "second abdomen", five describing large irreducible hernias. Six gave miscellaneous definitions. Two articles gave multiple definitions. Twenty articles (26%) gave volumetric definitions; eight used the Tanaka method [hernia sac volume (HSV)/abdominal cavity volume] and five used the Sabbagh method [(HSV)/total peritoneal volume]. The definitions used for loss of domain were not dependent on the reporting specialty. Our systematic review revealed that multiple definitions of loss of domain are being used. These vary and are not interchangeable. Expert consensus on this matter is necessary to standardise this important concept for hernia surgeons.

Details

Original languageEnglish
Number of pages9
JournalWorld journal of surgery
Early online date5 Sep 2018
Publication statusE-pub ahead of print - 5 Sep 2018