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Comparative Study
Journal Article
Comparison of Pre- and Postoperative Sleep Studies in Patients Undergoing Sphincter Pharyngoplasty.
Cleft Palate-craniofacial Journal 2018 November
OBJECTIVE: To determine if sphincter pharyngoplasty changes sleep study parameters on patients undergoing surgery for velopharyngeal insufficiency (VPI).
DESIGN: Retrospective chart review on patients undergoing sphincter pharyngoplasty for VPI with pre- and postoperative polysomnography completed.
SETTING: Institutional study at a tertiary pediatric hospital.
PATIENTS: All patients who underwent sphincter pharyngoplasty over a 20-year period were reviewed; all patients with both pre- and postoperative sleep studies were collected for evaluation.
INTERVENTIONS: Sphincter pharyngoplasty for patients with VPI.
MAIN OUTCOME MEASURE: Sleep study parameters collected include apnea-hypopnea index (AHI), obstructive and central apneas, hypopneas, and mixed events. The preoperative values were compared to postoperative values.
RESULTS: There were 98 patients collected with sleep studies for review. Of these, 32 patients had both pre- and postoperative sleep studies. The AHI increased from 1.8 preoperatively to a postoperative value of 4.8 ( P = .004). The number of obstructive events per night went from 4.6 to 17.6 postoperatively ( P = .04). The number of hypopneas increased from 4.0 to 13.6 ( P = .003). The other parameters were not statistically different, central events decreased from 4.8 to 2.1 ( P = .086), and mixed events were essentially unchanged from 0.2 to 0.5 ( P = .17) events per night.
CONCLUSIONS: Patients undergoing sphincter pharyngoplasty for VPI may experience an increase in their postoperative AHI, obstructive events per night, and hypopneas. Sleep studies should be performed both pre- and postoperatively to assess the need for intervention or change in management.
DESIGN: Retrospective chart review on patients undergoing sphincter pharyngoplasty for VPI with pre- and postoperative polysomnography completed.
SETTING: Institutional study at a tertiary pediatric hospital.
PATIENTS: All patients who underwent sphincter pharyngoplasty over a 20-year period were reviewed; all patients with both pre- and postoperative sleep studies were collected for evaluation.
INTERVENTIONS: Sphincter pharyngoplasty for patients with VPI.
MAIN OUTCOME MEASURE: Sleep study parameters collected include apnea-hypopnea index (AHI), obstructive and central apneas, hypopneas, and mixed events. The preoperative values were compared to postoperative values.
RESULTS: There were 98 patients collected with sleep studies for review. Of these, 32 patients had both pre- and postoperative sleep studies. The AHI increased from 1.8 preoperatively to a postoperative value of 4.8 ( P = .004). The number of obstructive events per night went from 4.6 to 17.6 postoperatively ( P = .04). The number of hypopneas increased from 4.0 to 13.6 ( P = .003). The other parameters were not statistically different, central events decreased from 4.8 to 2.1 ( P = .086), and mixed events were essentially unchanged from 0.2 to 0.5 ( P = .17) events per night.
CONCLUSIONS: Patients undergoing sphincter pharyngoplasty for VPI may experience an increase in their postoperative AHI, obstructive events per night, and hypopneas. Sleep studies should be performed both pre- and postoperatively to assess the need for intervention or change in management.
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