CST3 and cervical squamous intraepithelial neoplasia: Given the lack of enough data regarding the protective effects of RIPC in patients at moderate-to-high risk of developing CIN and the different effects of RIPC on serum creatinine and cystatin C levels in various reports, we performed a double-blind, randomized, controlled trial to assess the impact of RIPC after CM administration to protect renal function.