Intracordal injection technique: materials and injection site.
Intracordal injection technique: materials and injection site.
复制标题
绳内注射技术:材料和注射部位。
DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
Y. Tabata
中科院分区:
文献类型:
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作者:
E. Tamura;H. Fukuda;Y. Tabata
OBJECTIVE
Various materials have been used for intracordal injection to treat deficiencies in glottal closure. However, specific injection sites and materials are desirable for various conditions. Here, we reviewed injection sites and materials.
METHODS
By considering the characteristics of injection materials used in Japan to date as well as the normal structure of the vocal cord, we have determined injection materials and sites suitable for different type of disease.
RESULTS
Collagen obtained commercially for injection consists mainly of type I collagen, as does autologous fascia. When this material is injected into the superficial layer of the lamina propria mucosae of the vocal cord, the wave motion of the mucosa during phonation is disturbed. This material therefore should be injected deeper into the lamina propria. Indications for collagen injection include unilateral recurrent laryngeal nerve paralysis. Even when injected into the lamina propria, fat tissue does not disturb mucosal wave motion, and is useful for treating vocal cord atrophy or sulcus vocalis.
CONCLUSION
When intracordal injection is used in vocal rehabilitation, material and site should be selected, based on the cause of glottal dysfunction.