Erschienen in:
09.09.2023 | ENT • Original Article
Is there an OAHI or O2 nadir that predicts the need for preoperative echocardiogram prior to adenotonsillectomy for children with severe obstructive sleep apnea?
verfasst von:
Nicolas S. Poupore, Hussein Smaily, James D. Sullivan, Calvin W. Myint, John D. Prosser, William W. Carroll
Erschienen in:
Sleep and Breathing
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Ausgabe 1/2024
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Abstract
Purpose
To investigate threshold values for obstructive apnea–hypopnea index (OAHI) and nadir oxygen saturation (NspO2) in children with severe obstructive sleep apnea (OSA) to identify children most appropriate for preoperative echocardiography.
Methods
A multi-institutional retrospective chart review was performed on children who underwent echocardiography and polysomnogram within a year. Children with severe OSA as defined by OAHI > 10 or NspO2 < 80% were included. Receiver operator curves and Youden’s J index were used to assess the discriminatory ability and threshold values of OAHI and NspO2 for right heart strain (RHS) on echocardiography.
Results
A total of 173 prepubertal (< 10 years) children and 71 postpubertal (≥ 10 years) children of age were included. RHS was seen in 9 (5%) prepubertal children and 4 (6%) postpubertal children. In prepubertal children, OAHI and NspO2 were poor predictors of RHS (area under the curve [AUC] 0.53 [95%CI 0.45–0.61], p = 0.748; AUC 0.56 [95%CI 0.48–0.64], p = 0.609). In postpubertal children, threshold values of 55 events/hour and 69% were strong predictors for RHS (AUC 0.88 [95%CI 0.78–0.95], p < 0.001; AUC 0.92 [95%CI 0.83–0.97], p < 0.001).
Conclusion
In children with severe OSA, evidence of RHS is low. Postpubertal children with OAHI > 55 and NspO2 < 69% appear most appropriate for echocardiography. Clinicians should weigh the risks and benefits of preoperative echocardiography for each child with these threshold values in mind.