Child sinusitis are frequent infections. However, their diagnostic criteria, classification and therapeutic management is controversial. Complications are rare but sometimes severe. The finding of the increase in the number of complicated sinusitis, including neurological, at Pointe-à-Pitre hospital has motivated our research, including looking for triggering or aggravating factors. We conducted a single-center retrospective observational study of pediatric patients presenting to pediatric emergencies or consulting ENT Hospital in Pointe-à-Pitre for an array of rhinosinusitis, between 1 January 2011 and 30 June 2015. Of the 80 identified patients, 24 experienced complicated form of sinusitis. The 16-orbital ocular complications prevalence decreasing. The median age was 8.8 years. The starting point is ethmoid in 62, 5 % of cases. The sprouts are found streptococci A, C and F and S. Aureus. The 8 neuro-meningeal complications prevalence increasing. The median age is 10.3 years. A male predominance is noted. The starting point is pansinusien in 75 % of cases. The germs found C streptococci, S. intermedius and Fusobacterium. Several risk factors seem to be entangled. Among them, we retain atopy as promoting land and air pollutants such as mists of sand and hydrogen sulphide emitted by algae Sargassum that are probably and awareness factor, Seasonal viral epidemics (influenza, RSV) seems to be particularly involved in uncomplicated forms or ocular complications. The chikungunya outbreak in 2014 is correlated with a higher incidence of forms with neurological complications, can be as a trigger or confusing then, by an increase in diagnostic time due to clinical similarities.