0227

RESPIRATORY DISORDERS OF CHILDREN IN ICU AND INTERVENTION RESULTS BY OXYGEN PROVISION VIA NASAL CANULA

Song YZ, Yang YJ, Liu JB

Department of Pediatrics, Xiangya Hospital, Changsha, China

Objective: To explore apnea and hypopnea events in ICU, and effect of oxygen provision via nasal canula on TcSO2 and desaturation events.

Method: Respiratory flow, effect, and TcSO2, of 73 patients, 23 in PICU and 50 in NICU, were recorded with polysomnography system.

Results: Median Apnea Hypopnea Index (AHI) of the 73 cases was 16.6 spells/h, minimum 0.8, and maximum 81.8. Concerning the indices (all transformed by log(10+x)) of respiratory disorders,Hypopnea Index (HI) was 14.1�0.24 spells/h, and Apnea Index(AI), 1.07�0.11, with significant difference(P<0.01); Mixed HI was 1.38�0.24 spells/h, and central HI, 1.04�0.08, also with significant difference (P<0.01); Obstructive AI was more common than central or mixed AI(both P<0.01) in some groups.In NICU, apnea was more common in premature group than in hyperbilirubinemia group (2 = 4.18, P<0.01). In patients with oxygen provision via nasal canula, risk for minimum TcSO2 to decrease to below 85% was lower (2 =18.43, P<0.01), desaturation events less (u=15.4, P<0.01), and mean event duration shorter (u=12.2, P<0.01), than that in patients without oxygen provision.

Conclusions: In ICU, hypopnea was more common than apnea. Major type of hypopnea was mixed one, and of apnea, obstructive one. In NICU, premature was the population with higher risk of apnea.Oxygen provision via nasal canula was effective to increase minimal TcSO2, and to decrease the severity degree of desaturation events.