Application of percutaneous multi-angle oblique puncture renal biopsy under ultrasound guidance
WU Yi-qiang1 CHEN Xie-hong2 WU Geng-mao1
1.Department of Nephrology,Jieyang People′s Hospital,Guangdong Province,Jieyang 515000,China;
2 Department of Ultrasound,Jieyang People′s Hospital,Guangdong Province,Jieyang 515000,China
Abstract：Objective To explore the application safety and advantages of percutaneous multi-angle oblique puncture under ultrasound guidance in renal biopsy.Methods A total of 388 patients who underwent renal puncture in Jieyang People′s Hospital from June 2014 to December 2019 were selected as the research objects,and 72 patients who underwent renal puncture with a fixed-angle stent from June 2014 to April 2015 were selected as the control group (vertical puncture insertion),from May 2015 to December 2019,316 patients undergoing renal puncture with a variable-angle puncture stent were used as the experimental group.The experimental group was divided into group A (15°,132 cases),group B (25°,91 cases),group C (35°,56 cases),and group D (45°,37 cases) according to the puncture angle.The puncture success rate,specimen qualification rate,specimen length,glomerulus number,the incidence of postoperative urinary erythrocytosis,the incidence of perirenal hematoma,and the incidence of gross hematuria between the experimental group and the control group and among different groups in the experimental group were compared.Results The puncture success rate of the experimental group and the control group was 100.0%.The specimen qualification rate,specimen length and glomerulus number in the experimental group were higher than those in the control group,and the differences were statistically significant (P<0.05).There were no significant differences in the incidence rates of postoperative urinary erythrocytosis,gross hematuria,perirenal hematoma at 0 and 72 h after operation between the experimental group and the control group(P>0.05).There were no significant differences in the specimen qualification rate,specimen length,glomerulus number,the incidence rates of postoperative urinary erythrocytosis,gross hematuria,perirenal hematoma at 0 and 72 h after operation among different groups in the experimental group （P>0.05）.Conclusion The application of multi-angle oblique puncture and individualized puncture angles can significantly increase the number of glomeruli obtained from puncture biopsy specimens without increasing the bleeding complications of puncture biopsy.
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