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Dr. Novitsky has published about preoperative optimization. L-arginine supplementation has been shown to improve outcomes from abdominal surgery. Nutrition in general is important, focusing on a high protein diet, as proteins are the building blocks of healing. Vitamin C and Zinc supplementation are associated with improved healing. Not much research has definitively shown any other OTC supplement to help with healing.
For sure, removal of mesh off the external iliac vessels can be risky. I have removed all the mesh in all of my patients, with 4 exceptions. However, I see patients with mesh-related pain, not just meshoma-related pain, so 100% removal is more important in that subset of patients.