Clinical Observation on the Ureteropelvic Junction Obstruction

Youn, Chang Han; Cho, Sung Ryong

Abstract

A clinical observation was made on the 16 cases of the ureteropelvic junction obstruction of the in patient in the Dept. of urology, Fatima hospital during the period from Jan. 1981 to 1985 and the followings were obtained. 1. The patient in this series were distributed from 4 month old to 61 years old and the male female ratio was 3: 1. 2. The obstruction was on the left side in 14 cases, on the right side in 2 cases. 3. The pathologic lesion encountered at ureteropelvic obstruction, are intrinsic ureteropelvic obstruction in 10 cases adhesion and fibrosis in 2 cases, high insertion in 1 case, aberrant vessel in 1 case and unknown in 2 cases. 4. The most presenting symptom was frank pain, affecting 11 cases and palpable mass with urinary tract infection was found 5 cases. 5. The degree of hydronephrosis was determined by urography, retrograde pyelography and ultrasonography, Grade 4 was found in 5 cases, Grade 3 in 5 cases, Grade 2 in 6 cases. 6. On laboratory examination, microscopic pyuria was found in 11 cases, microscopic hematuria in 3 cases, microscopic pyuria and hematuria in 3 cases and BUN was increased in 4 cases. 7. Dismembered pyeloplasty was done in 10 cases, spiral flap operation in 1 case, simple ureteropelvic anastomosis in 1 case and nephrectomy in 2 cases. Preliminary nephrostomy was done 1 case. Of the 12 repairs 10 were protected by nephrostomy drainage plus ureteral stent.