Long-Term Results of Calcium Hydroxylapatite for Vocal Fold Augmentation
Long-Term Results of Calcium Hydroxylapatite for Vocal Fold Augmentation
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DOI:
10.1002/lary.21258
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发表时间:
2011-02-01
期刊:
影响因子:
2.6
通讯作者:
Rosen, Clark A.
中科院分区:
文献类型:
--
作者:
Carroll, Thomas L.;Rosen, Clark A.
Objectives/Hypothesis: Studies have shown excellent results for 12-month post-injection augmentation data for calcium hydroxylapatite (CaHA) for glottal incompetence; however, the longevity of the material past one year was unknown. Our objective was to report the long-term effectiveness of CaHA as a vocal fold injectable by assessing data from a cohort of patients who underwent injection for glottal insufficiency.Study Design: Retrospective chart review.Methods: Patients who underwent CaHA injection for glottal insufficiency of any etiology were considered for inclusion in the study. The change in Voice Handicap Index (VHI)-10 scores between preinjection scores and best postinjection scores as well as between the preinjection and the most recent VHI-10 scores were used as primary outcome measures to determine the persistence of benefit or the time to loss of benefit. Complications among the cohort were identified.Results: Ninety patients who underwent 108 vocal fold injections with CaHA were evaluated for inclusion. Twenty patients with 22 injections met the criteria for inclusion. Fourteen of 22 (64%) subjects showed loss of benefit of the CaHA material. The average length of benefit was 18.6 months, with a range of 8 to 36 months. Three complications were identified among the original cohort of 108 injections.Conclusions: CaHA remains a safe and effective long-term vocal fold injectable with an average length of benefit of 18.6 months. Three complications were seen among 108 CaHA injections. CaHA is a long-term injectable with an excellent track record that does not appear to warrant concern for permanent or late complications.