Clínica Médica - Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil.
Clinics (Sao Paulo). 2011;66(8):1385-8. doi: 10.1590/s1807-59322011000800013.
This study was designed to investigate a possible relationship between the duration of the oral and pharyngeal phases of swallowing.
The oral and pharyngeal phases of swallowing are independent from each other but may be related.
We used videofluoroscopy to evaluate 30 healthy volunteers between 29 and 77 years of age who swallowed 5- and 10-ml liquid and paste boluses in duplicate. The duration of the oral phase, pharyngeal transit, and pharyngeal clearance were measured.
There were no differences in oral or pharyngeal transit times between the liquid and paste boluses or between the volumes of 5 and 10 ml (p > 0.40). The pharyngeal clearance time for the paste bolus (0.48 ± 0.27 s) was longer than for the liquid bolus (0.38 ± 0.11 s, ρ = 0.03) with no difference between the volumes of 5 and 10 ml. There was no significant correlation between the oral transit time and the duration of pharyngeal transit for the liquid (5 ml, Spearman's coefficient ρ: -0.14; 10 ml, ρ: 0.18) or the paste (5 ml, p: 0.08; 10 ml, p: 0.10). The correlation between the oral transit time and the pharyngeal clearance time was not significant for the liquid bolus (5 ml, ρ: 0.31; 10 ml, ρ: 0.18), but it was significant for both the 5 ml (ρ: 0.71) and 10 ml (ρ: 0.64) paste boluses.
The relationship between the oral and pharyngeal phases of swallowing can be affected by bolus consistency.
There is a correlation between the duration of oral transit and the duration of pharyngeal clearance during the swallowing of paste boluses.
本研究旨在探讨吞咽的口腔相与咽相持续时间之间可能存在的关系。
吞咽的口腔相与咽相是相互独立的，但可能存在关联。
我们使用视频荧光透视法评估了 30 名年龄在 29 至 77 岁之间的健康志愿者，他们分别重复吞咽 5 毫升和 10 毫升液体和糊剂的液滴。测量了口腔相持续时间、咽通过时间和咽清除时间。
液体和糊剂之间以及 5 毫升和 10 毫升之间的口腔或咽通过时间没有差异（p>0.40）。糊剂的咽清除时间（0.48±0.27 秒）长于液体（0.38±0.11 秒，p=0.03），而 5 毫升和 10 毫升之间的体积没有差异。液体（5 毫升，Spearman 系数 ρ：-0.14；10 毫升，ρ：0.18）或糊剂（5 毫升，p：0.08；10 毫升，p：0.10）的口腔通过时间与咽通过时间之间无显著相关性。对于液体液滴，口腔通过时间与咽清除时间之间的相关性不显著（5 毫升，ρ：0.31；10 毫升，ρ：0.18），但对于 5 毫升（ρ：0.71）和 10 毫升（ρ：0.64）糊剂液滴均具有显著相关性。
吞咽糊剂时，吞咽的口腔相与咽相之间的关系可能受到食团稠度的影响。
吞咽糊剂时，口腔通过时间与咽清除时间之间存在相关性。
