ObjectiveTo observe the clinical efficacy of bi-endoscopy combined with endoluminal surgery in prone-straddle position for treating complex renal calculi. MethodsForty-five patients with complex renal calculi were enrolled. Percutaneous nephrolithotripsy and flexible ureteroscopic lithotripsy in prone-straddle position under two display systems were performed at the same time by two groups of surgical crews. ResultsOperation in prone-straddle position was completed successfully in all the 45 cases. No severe haemorrhage and infection occurred during and after operation. The operative duration was (150.6±10.5) min. The postoperative decrease in hemoglobin was (12.5±0.20) g/dL compared to the preoperative value. Abdominal X-ray and CT were conducted again at 5 days after operation. The initial stone clearance rate of renal calculi was 84.4%(38/45). Five patients received another flexible ureteroscopic lithotripsy, and 2 patients received extracorporeal shock wave lithotripsy. The hospital stay was (7.1±0.4) d. ConclusionFor complex renal calculi, bi-endoscopy combined with endoluminal surgery in prone-straddle position can obtain high efficiency of stone clearance and less complications, and is safe and effective.

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