Grade C	For laparoscopic incisional and ventral hernia repair, only materials approved for use in the abdominal cavity (PTFE, PVDF, and composite meshes) should be used. Meshes lacking approval for use within the abdominal cavity should not be used outside approved research
	It is difficult to eradicate bacteria from ePTFE, and therefore it should be removed (explanted) in the presence of severe contamination
Grade D	The final choice of mesh at the present time should be based on the surgeon’s preference while awaiting further data from controlled clinical trials
	Based on today’s knowledge, plain PP (without a protective layer) cannot be recommended for intra-abdominal use
	Fixation has to consider the specific flexibility and tissue integration of the device
	Quality control of outcome requires a long follow-up and should use registries with standardized sets of variables with an open-ended option for surveillance