CLINICAL STUDIES OF RENAL ANGIOGRAPHY IN PATIENTS WITH UNEXPLAINED RENAL HEMATURIA

Abstract

For a period of 10 years from 1968 to 1977, renal angiographic examinations were carried out in 42 out of 144 patients with unexplained renal hematuria, at the Department of Urology, Hiroshima University Hospital. In these cases, conservative treatments were unsuccessful.
The results of the angiographic examination including renal phlebography and inferior venacavography in these cases were as follows:
1) Of 42 patients examined, 19 had renal and perirenal vascular lesions and 2 had renal parenchymal disorders.
2) In 19 patients with renal and perirenal vascular lesions, renal pelvic and ureteral varices were observed in 9 cases, intrarenal arteriovenous fistula in 3 cases, left inferior vena cava in 2 cases, double inferior vena cava in 1 case, retroaortic left renal vein in 2 cases, circumaortic renal venous ring in 2 cases, and renal segmental infarct in 1 case.
3) In 4 out of 7 patients who had congenital anomalies of inferior vena cava or renal vein, varices of renal pelvis and ureter were observed.
The results described above suggest the possibilities that the congenital anomalies of inferior vena cava and renal vein may cause congestion of the renal and ureteral venous systems, and the congestion may be a predisposing condition of renal hematuria.