Is it common practice to cut through an old hiatal hernia mesh from previous op to perform laproscopic gallbladder removal resulting a hernia-redo?

Hernia: It depends on where the mesh was placed it is best to review the findings with your surgeons who performed the 2 procedures however it is unusual to dissect near the hiatus for a lap chole, it could be he case for an abdominal wall hernia.

No: Performing a laparoscopic gallbladder removal would not affect anything near an old hiatal hernia repair. If there was a recurrence from the hiatal hernia, it almost certainly wasn't due to the gallbladder operation.