Primary vesicoureteric reflux in Thai children with urinary tract infection.

Four hundred and forty-three pediatric patients were analysed retrospectively for GU anomalies especially for primary VUR. Genito urinary tract anomalies were found in 46 per cent of investigated patients. Primary VUR was found in 29 per cent of patients who had GU anomalies and were the most common anomalies found. The GU anomalies were found more in younger males, and older females. Low to medium grade VUR tended to have spontaneous resolution and correlated well with degrees of controlling infection. In high grade VUR, fewer patients may have spontaneous resolution, surgery can correct the reflux but not the progression of the damage.