Abstract
Background: Acute upper urinary tract obstruction is a sudden blockage from the renal pelvis to the ureter, the most common cause being ureteral stones. Computed tomography is a very effective in evaluating the cause of obstruction, obstructive kidney morphology and function, with a sensitivity and specificity of 95-100%. Objectives: To desribe clinical characteristics and computed tomographic imaging characteristics in patients with acute upper urinary tract obstruction caused by stones with acute renal colic. Methods: A cross-sectional survey was conducted with a total sample of 45patients with acute obstruction of the upper urinary tract due to stones who underwent computed tomography from August 2022 to March 2023. Results: A total of 45 patients included 24 men and 21 women, with an average age of 46.6 ± 12.2 years. Other clinical symptoms: painful urination 22.2%, fever 13.3%. Stone position: 44.4% upper, 17.8% middle, 37.8% lower ureter. Grade of hydronephrosis: grade I 55.6%, grade II 44.4%. Ureteral dilatation 95.6%, perirenal fat infiltration 53.3%, perirenal fluid collection 35.6%, the tissue rim sign 42,2%, periureteral infiltrates 26.7%. Slow excretion 51.1%. Acute pyelonephritis 8.9%. The average stone size is 6.77 ± 2.9 mm, the average stone density is 1065.67 ± 325.6 HU. Conclusion: Computed tomography is an effective diagnostic imaging tool for acute upper urinary tract obstruction caused by stones, evaluate the function of kidney and detect complications of acute pyelonephritis.
| Published | 2025-06-25 | |
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| Issue | Vol. 15 No. 3 (2025) | |
| Section | Original Articles | |
| DOI | 10.34071/jmp.2025.3.24 | |
| Keywords | cắt lớp vi tính, tắc nghẽn cấp tính đường tiết niệu, cơn đau quặn thận, sỏi niệu quản computed tomography, acute urinary tract obstruction, renal colic, ureterolithiasis |
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