ĐÁNH GIÁ CÁC YẾU TỐ TRÊN CẮT LỚP VI TÍNH ĐA DÃY LIÊN QUAN ĐẾN QUÁ TRÌNH TÁN SỎI TIẾT NIỆU CAO QUA DA

Abstract

Purposes: To evaluate the factors on multislice computed tomography related to percutaneous lithotripsy of high urolithiasis. Material and methods: A cross-sectional description study was performed in 35 patients with indications and percutaneous lithotripsy at Hanoi Medical University Hospital and had multi-slices computed tomography before percutaneous lithotripsy from June 2022 to February 2023. Evaluation of factors on MSCT related to 2 main stages of percutaneous lithotripsy procedure: 1) stage of lithotripsy tunneling including factors such as stone location, renal parenchymal thickness, distance from the skin to the stone, degree of dilatation of the excretory tract, congenital abnormalities of the urinary tract, of the renal blood vessels, 2) the stage of lithotripsy procedure including factors such as the number of stones, the size, surface area, density of stones. Results: there were 22 men/13 women, the average age was 53.4 ± 12.0, the prevalence of kidney stones was mainly from 30-60 years old. Stones were mainly in more than one location (renal pelvis + calyx groups), the stone size was mainly 20-30mm (accounting for 57.1%), the surface area was mainly <10cm2 (accounting for 88.6%), the surface area has closely related to lithotripsy time and stone cleanliness with p<0.05. The proportion of stones is mainly >1000 HU (accounting for 91.4%). Anatomical changes of the two renal arteries account for 20% and abnormalities of renal rotation account for 2.9%. Conclusion: Multislice computed tomography provides important, essential information regarding the stages of percutaneous lithotripsy of high urolithiasis, thereby helping surgeons define pre-litholithic strategies.