Comparison of clinical effects of standard channel and microchannel percutaneous nephrolithotomy in the treatment of kidney stones with a diameter of more than 20 mm
Objective To compared the clinical effects of standard channel and microchannel percutaneous nephrolithotomy(PCNL)in the treatment of kidney stones with a diameter of more than 20 mm.Methods A total of 106 patients with kidney stones with a diameter of more than 20 mm who underwent surgical treatment in the urology department,Nantong Tongzhou People's Hospital from January 2019 to January 2023 were selected as the research objects.According to the size of the channel,the patients were divided into standard channel group(54 cases,24F percutaneous renal channel was established for lithotripsy)and microchannel group(52 cases,18F percutaneous renal channel was established for lithotripsy).The clinical related indexes,pain,stone clearance rate and postoperative complications were compared between the two groups.Results The operation time of the microchannel group was longer than that of the standard channel group,and the gravel time and hospitalization time were shorter than those of the standard channel group,and the decrease of hemoglobin(Hb)was lower than that of the standard channel group,and the differences were statistically significant(P<0.05).On the 1 st,2 nd and 3 rd day after operation,the Visual Analogue Scale(VAS)score of the microchannel group was lower than that of the standard channel group,and the difference was statistically significant(P<0.05).There were no significant differences in the stone clearance rate and the incidence of postoperative fever between the two groups(P>0.05);the incidence of postoperative bleeding in the microchannel group was lower than that in the standard channel group,and the difference was statistically significant(P<0.05).Conclusion Both standard channel and microchannel PCNL can achieve ideal results in the treatment of kidney stones.The standard channel can use more instruments,and the operation process is relatively simple,while the microchannel operation can use fewer instruments,and the operator's technical requirements are more stringent.However,it has more advantages in reducing postoperative pain and bleeding volume and shortening clinical recovery time.Clinically,appropriate surgical methods should be selected according to the specific conditions of patients.
standard channelmicrochannelkidney stonepercutaneous nephrolithotomystone clearance rate
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