What can be side effects and complications of biologic mesh used in recurrent hiatal hernia repair?

Some...: Biologic mesh for recurrent is generally safe. Like any foreign body, it could become infected, cause a stricture, or in rare cases even erode into the esophagus. That being said, it plays a very important role in reducing the recurrence rate of your hernia from as high as 20-25% down to 3-5%.

Few, but...: Biological mesh material actually goes away at it is replaced with your own connective tissue cells. There have been reports of this type of mesh eroding into the esophagus, but it is more likely to be technique related in my opinion, rather than caused by the material itself. It is biologically inert, so shouldn't cause any type of systemic reaction like an allergy. Hope this helps!