Miotto e Silva VB, et al. - This study was performed on patients with juvenile idiopathic arthritis (JIA) in order to assess ultrasonography (US)-detected changes in clinical remission as predictors of disease flare and to examine factors related to flare and joint damage over 30 months of follow-up. Close surveillance during treatment was recommended in patients in remission on medication with subclinical synovitis with positive power Doppler (PD) signal on US, as they had a higher risk of flare. Also, due to the risk of flare and joint damage, monitoring was recommended in those with subclinical synovitis with or without positive PD signal.