Objective
To evaluate the safety of office‐based calcium hydroxylapatite (CaHA) injection laryngoplasty via the cricothyroid approach through an analysis of all procedures performed over a period of 10 years at a single institution.
Methods
In total, 962 office‐based CaHA injection laryngoplasty via the cricothyroid approach procedures were performed by a single physician at our institution between 2007 and 2016. From these, 955 procedures performed in 617 patients were included in our analysis. The medical records of all 617 patients were retrospectively reviewed. We classified all procedure‐related complications according to the time of onset. Complications that occurred during the procedure were considered intraprocedural complications, whereas complications that developed within 1 week after injection and those that developed after 1 week and were recorded more than twice in the medical records were considered acute and delayed complications, respectively. Failed cases were categorized separately as failure.
Results
Five cases were failed (0.5%). Intraprocedural complications included superficial injection in eight cases (0.8%). Acute and delayed onset of dyspnea was observed in three (0.3%) and two (0.2%) cases, respectively. The incidence of failures and major complications requiring active intervention was 1.6%.
Conclusion
Our findings suggest that office‐based CaHA injection laryngoplasty via the cricothyroid approach is as safe as conventional transoral injection laryngoplasty.
Level of Evidence
4. Laryngoscope, 2019
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