• Joerg Schnoor, Thilo Busch, Nazar Turemuratov, and Andreas Merkenschlager.
• Department of Anesthesia and Intensive Care Medicine, Collm-Klinik-Oschatz, Parkstr. 1, 03435, Oschatz, Germany. jschnoor@collm-klinik-oschatz.de.
• BMC Anesthesiol. 2018 Feb 20; 18 (1): 25.

BackgroundChildren with obstructive sleep apnea are at high risk for perioperative airway obstruction. Many "at risk" children may remain unrecognized. The aim of this study is to find a clinically practicable test to identify obstructive sleep apnea in childhood.MethodsIn this pilot study, we prospectively compared four parental questionnaires with the respective findings of subsequent sleep laboratory testing in children. Right before sleep laboratory testing, children's parents answered both the Pediatric Sleep Questionnaire, a subscale of the Sleep Related Breathing Disorder questionnaire (PSQ-SRBD-Subscale), and an eight-item questionnaire derived from it. Finally, we condensed the eight-item questionnaire to three core issues: Does your child regularly snore at night? Does your child demonstrate labored breathing during sleep? Does your child have breathing pauses during sleep? With it, two similar questionnaires were generated that differed in the formation of the resulting score. One questionnaire was built by a quotient comparable to the abovementioned questionnaires and a second as quick test that functioned as a simple sum score. Both sensitivity and specificity were determined by using a Receiver Operating Characteristic analysis.ResultsIn total, 53 children were included in the study. Both the PSQ-SRBD-questionnaire and self-derived eight-item questionnaire failed to reach statistically significant results in detecting obstructive sleep apnea. The set of three core questions with a score built by a quotient was statistically significant and provided sensitivity and a moderate specificity of 0.944 and 0.543, respectively. This could be slightly optimized by creating a simple sum-score (specificity of 0.571).ConclusionsThe use of three core-questions may facilitate the detection of pediatric obstructive sleep apnea within the scope of the anesthesia survey. While the study has some limitations, future studies with both unselective collectives and older children might prove this ultra-short questionnaire to be advantageous in detecting pediatric OSA in clinical practices.Trial RegistrationGerman Clinical Trial Register ( DRKS00010408 , https://www.drks.de ); date of registration 26.07.2016.

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