Donzelli Joseph, Brady Susan
Otolaryngology Head & Neck Surgery LTD, Naperville, IL, USA.
Arch Otolaryngol Head Neck Surg. 2004 Feb;130(2):208-10. doi: 10.1001/archotol.130.2.208.
To determine the effects, if any, of 3 different breath-holding techniques on a person's ability to attain vocal fold closure (VFC) to successfully complete swallowing maneuvers.
Prospective, randomized study.
Private practice.
A total of 150 healthy volunteers recruited from private practice patients and community volunteers. Intervention Group 1 received the easy breath-hold instruction; group 2 received the inhale/easy breath-hold instruction; and group 3 received the hard breath-hold instruction.
Closure of true and false vocal folds following the breath-hold instruction.
In the easy breath-hold group, true VFC occurred in 82% of the subjects, and closure of both the true and false vocal folds occurred in 30%. In the inhale/easy breath-hold group, true VFC occurred in 62%, and closure of both folds occurred in 46%. In the hard breath-hold group, true VFC occurred in 86%, and closure of both folds occurred in 64%. The differences among the 3 groups were significant for true VFC (chi2=9.242; P=.01) and for closure of both folds (chi2=11.625; P=.003).
The hard breath-hold instruction was the most effective method to attain full laryngeal closure, and the inhale/easy breath-hold instruction was the least effective method to attain true VFC for safe swallowing.
确定3种不同屏气技术对一个人实现声带闭合（VFC）以成功完成吞咽动作的能力（若有影响）的影响。
前瞻性随机研究。
私人诊所。
从私人诊所患者和社区志愿者中招募的150名健康志愿者。干预组1接受简易屏气指导；组2接受吸气/简易屏气指导；组3接受用力屏气指导。
屏气指导后真假声带的闭合情况。
在简易屏气组中，82%的受试者出现真声带闭合，30%的受试者真假声带均闭合。在吸气/简易屏气组中，62%的受试者出现真声带闭合，46%的受试者真假声带均闭合。在用力屏气组中，86%的受试者出现真声带闭合，64%的受试者真假声带均闭合。三组之间在真声带闭合方面差异有统计学意义（χ2=9.242；P=0.01），在真假声带均闭合方面差异有统计学意义（χ2=11.625；P=0.003）。
用力屏气指导是实现完全喉部闭合最有效的方法，而吸气/简易屏气指导是实现安全吞咽的真声带闭合最无效的方法。
