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首页> 外文期刊>ORL: Journal for oto-rhino-laryngology and its borderlands >Investigations of the Influence of External Nose Deformities on Nasal Airflow.
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Investigations of the Influence of External Nose Deformities on Nasal Airflow.

机译：外鼻畸形对鼻气流的影响的研究。

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Background: Abnormalities of the external shape of the nose are often felt as cosmetically disturbing. In many cases an additional hampering of the respiratory function of the nose is seen and causes pathological nasal airflow patterns. For the functional outcome of aesthetic-surgery of the nose, knowledge of nasal flow is essential. In the medical literature there are some discrepancies between the relationship of nasal shape and nasal flow. We investigated typical airflow patterns in different abnormalities of the external nose. Methods: We performed fluid dynamic experiments on exact, anatomical nasal models and functional nasal models (so-called modified Mink boxes). We investigated the inspiratory flow pattern in nose-models with typical variations of the shape of the external nose. Results and Conclusions: There were typical airflow patterns for every external nasal abnormalities. The normal nose shows a disturbance of the streamlines over the entire nasal cavum. Under physiological flow velocities we find laminar and turbulent flow. The pathological variations of the nasal shape show mostly different airflow patterns and characteristics. The main reason for that is a deformed or anatomically false configurated inflow area (vestibulum, isthmus and anterior cavum). During rhinoplasty the reconstruction of the nasal inflow area has to be taken into account. Copyright (c) 2005 S. Karger AG, Basel.
机译：背景：鼻子外部形状的异常通常被认为在美容上令人不安。在许多情况下，还会看到鼻子呼吸功能的其他障碍，并导致病理性的鼻气流模式。对于鼻子美学手术的功能结果，鼻流知识是必不可少的。在医学文献中，鼻腔形状和鼻腔流量之间存在一些差异。我们调查了外鼻不同异常情况下的典型气流模式。方法：我们在精确的解剖鼻腔模型和功能性鼻腔模型（所谓的改良Mink盒）上进行了流体动力学实验。我们调查了鼻子模型中典型外部鼻孔形状变化的吸气流动模式。结果与结论：每种外部鼻部异常都有典型的气流模式。正常的鼻子显示整个鼻腔的流线紊乱。在生理流速下，我们发现层流和湍流。鼻子形状的病理变化主要表现出不同的气流模式和特征。造成这种情况的主要原因是变形的或解剖学上错误的配置流入区域（前庭，峡部和前腔）。在隆鼻过程中，必须考虑鼻腔流入区域的重建。版权所有（c）2005 S.Karger AG，巴塞尔。

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