From clinical practice to guidelines: how to recognize rhinosinusitis in children.

Rhinosinusitis is a common childhood respiratory infection. Children have approximately six to eight viral infections of the upper respiratory tract each year, 5-13% of which may be complicated by a secondary bacterial infection of the paranasal sinuses. The diagnosis of acute bacterial rhinosinusitis in children is established by the persistence of purulent nasal or post-nasal draining lasting at least 10 days, especially if accompanied by supporting symptoms and signs, at which point antibiotic treatment has to be recommended. Appropriate antibacterial therapy should also be recommended if the draining has been present for less time, but is concomitantly associated with significant fever and localized signs of sinus inflammation in a child who appears ill. Imaging studies are not necessary to confirm the diagnosis of clinical rhinosinusitis for the purposes of treatment, but should be reserved for cases in which the diagnosis is in doubt or a complication is suspected, and for patients with recurrent or chronic rhinosinusitis. Under these circumstances, computed tomography is the preferred evaluation. Together with their clinical judgment, these suggestions may be useful for pediatricians in diagnosing this common condition.