Utility of preoperative cardiac evaluation in pediatric patients undergoing surgery for obstructive sleep apnea

Peter C Revenaugh1, Lauren J Chmielewski, Thomas Edwards

  • 1Head and Neck Institute, Department of Otolaryngology-Head and Neck Surgery, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA.

Insights

Preoperative cardiac evaluations rarely reveal significant findings in pediatric obstructive sleep apnea (OSA) patients. However, a higher apnea-hypopnea index (AHI) predicts postoperative respiratory complications after adenotonsillectomy (TA).

Area of Science:

  • Pediatric Cardiology
  • Sleep Medicine
  • Respiratory Medicine

Background:

  • Obstructive sleep apnea (OSA) is common in children undergoing adenotonsillectomy (TA).
  • Cardiac evaluations are often performed preoperatively, but their utility in pediatric OSA is debated.
  • Postoperative respiratory complications following TA are a significant concern.

Purpose of the Study:

  • To determine the prevalence of clinically relevant cardiac findings in pediatric OSA patients before TA.
  • To assess the association between cardiac findings and postoperative respiratory complications.
  • To evaluate the correlation between OSA severity (AHI) and cardiac parameters.

Main Methods:

  • Retrospective chart review of pediatric patients (10 months–15 years) who underwent echocardiography and polysomnography (PSG) prior to TA for OSA.
  • Independent review of echocardiograms by two pediatric cardiologists.
  • Stratification of patients by apnea-hypopnea index (AHI) severity.

Main Results:

  • No clinically relevant cardiac abnormalities were found in the 57 reviewed patients.
  • Increased AHI was significantly associated with postoperative respiratory complications (P < .05).
  • Left ventricular mass index was not significantly related to AHI, contrary to prior studies.

Conclusions:

  • Routine preoperative cardiac workup for pediatric OSA patients may not be necessary unless comorbidities exist.
  • Preoperative AHI is a valuable tool for identifying patients at risk of respiratory complications post-TA.
  • Cardiac evaluations and OSA severity (AHI) did not predict postoperative respiratory complications in this cohort.
Abstract

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