Delayed brachial artery dilation response and increased resting blood flow velocity in young children with mild sleep-disordered breathing

Children with mild SDB showed increased blood flow velocity at rest and during hyperaemic stress suggesting altered cardiovascular and haemodynamic function. The delay in time to maximal vessel dilatation in children who snored also suggests possible reduced vascular compliance in response to hyperaemic sheer stress. Mild SDB appears to alter the peripheral vascular response in young children. The long-term vascular implications of these changes in the growing child are unknown and warrant further investigation.