Summary
Objective
To assess whether the different fiberoptic bronchoscopy (FOB) grades of laryngeal
mask airway (LMA) Supreme™ affects pharyngolaryngeal morbidity (PLM, including sore
throat, dysphonia, pharyngoxerosis, and dysphagia) after general anesthesia.
Methods
A total of 235 adult patients scheduled for elective laser lithotripsy undergoing
general anesthesia with the placement of LMA Supreme™ were enrolled. The position
of LMA Supreme™ was assessed by FOB and categorized into five grades. Meanwhile, patients
were divided into four groups (grades A–D); none was assessed as grade E. We collected
blinded data on PLM at 2 (H+2), 6 (H+6), and 24 hours (H+24) postoperatively. The
incidence and severity of PLM as the primary outcome and incidence of PLM at three
time points as a secondary outcome were compared.
Results
The incidence of PLM was higher at 2 and 6 hours than at 24 hours; however, no significant
difference was found between the incidence of PLM in the FOB groups. Furthermore,
the severity of sore throat and dysphonia between groups were obviously differed at
H+6 and H+24, but similar at H+2. The severity of postoperative pharyngoxerosis and
dysphagia were similar between groups at three time points.
Conclusions
A positive association was found between the severity of postoperative sore throat
and dysphonia and FOB grade after LMA Supreme™ placement. PLM secondary to placement
of the LMA Supreme™ was short lasting.
Key Words
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Article info
Publication history
Published online: March 10, 2022
Accepted:
February 8,
2022
Publication stage
In Press Corrected ProofIdentification
Copyright
© 2022 The Voice Foundation. Published by Elsevier Inc. All rights reserved.
