Between April 1987 and December 1993, 641 hypertensive patients [364 Jemale (56.8%), 277 male ( 43.2%)], underwent renal ultrasonography. Abnormal ultrasonographic findings were Jound in 364 patients (56.8%) and in 209 (32.6%) of these the alterations were eventually related to arterial hypertension. 355 clinical files were reviewed, of which 93 (26.1%) had renal function deterioration and only 14 (15%) ofthese...