Hiatal Defect Classification

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Classification system (BBUGSS classification)

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• The defect is measured intra-operatively at the widest transverse point of the hiatus after oesophageal mobilisation

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                                                       Type A (Small Hiatal Defect)        < 3 cm

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                                                       Type B (Medium Hiatal Defect)  3 - 6 cm

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                                                       Type C (Large Hiatal Defect)        > 6 - 9 cm

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                                                       Type D (Giant Hiatal Defect)        > 9 cm

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• No substantial evidence base about mesh use during hiatal repair, therefore no recommendation can be made by BBUGSS