| Objective To introduce production process, working principle and advantages of the homemade single-site-multi-channel trocar, in order to promote its clinical applications; To present a comparison of perioperative outcomes between Single-Site Retroperitoneoscopic and Conventional Retroperitoneoscopic in nephrectomy&adrenalectomy&renal cyst decortication&ureterolithotomy&non-functioning kidney resection to confirm the safety and feasibility of the Single-Site Retroperitoneoscopic surgery and explore the possibilities of its clinical applications.Methods Using a statistical method to compare Single-Site Retroperitoneoscopic and Conventional Retroperitoneoscopic in demographics, ASA classification, operative time, length of incision, estimated blood loss, intraoperative airway pressure, time of removing the tracheal tube, decrease in serum hemoglobin, postoperative length of stay, postoperative Clavien-Dindo complications classification, incidence of pneumoderma, visual analogue pain scales(VAPS).Results Homemade single-site-multi-channel trocar is more suitable than triport and any other finished products for clinical practice, in favor of the transition to the Single-Site Retroperitoneo-scopic surgery from the Conventional Retroperitoneoscopic one, which also reduces the financial burden of patients. In the nephrectomy, there was no difference between Single-Site Retroperitoneoscopic Versus Conventional Retroperitoneoscopic in demographics, ASA classification, operative time, length of incision, estimated blood loss, decrease in serum hemoglobin, postoperative length of stay, postoperative Clavien-Dindo complications classification, VAPS(P>0.05).The Single-Site group did have a lower recorded intraoperative airway pressure, time of removing the tracheal tube, incidence of pneumoderma (P<0.05). In the adrenalectomy&renal cyst decortication&ureterolithotomy&non-functioning kidney resection, there was no difference between Single-Site Retroperitoneoscopic Versus Conventional Retroperiton-eoscopic in demographics(except the variable gender of renal cyst decortication group), ASA classification, operative time, estimated blood loss, decrease in serum hemoglobin, postoperative length of stay, postoperative Clavien-Dindo complications classification (P>0.05).The Single-Site group did have a lower recorded length of incision, VAPS, intraoperative airway pressure, time of removing the tracheal tube, incidence of pneumoderma (P<0.05)Conclusions Single-Site Retroperitoneoscopic in upper urinary tract surgery is safe and feasible with cosmetic advantage, reduction of the postoperative pain, reduction of anesthesia recovery time, lower incidence of pneumoderma comparable to Conventional Retroperitoneoscopic. |