鼻泪管开口于下鼻道的活体形态。

In Vivo Morphology of Nasolacrimal Duct Opening into the Inferior Meatus.

机构信息

Ophthalmic Plastic Surgery Services, L.J. Eye Institute, Ambala, India.

South Australian Institute of Ophthalmology, Royal Adelaide Hospital, Adelaide, South Australia, Australia.

出版信息

Ophthalmic Plast Reconstr Surg. 2020 Sep/Oct;36(5):512-514. doi: 10.1097/IOP.0000000000001636.

DOI:10.1097/IOP.0000000000001636

PMID:32251178

Abstract

PURPOSE

To study the in vivo morphology of nasolacrimal duct (NLD) openings into the inferior meatus.

METHODS

Patients undergoing endoscopic dacryocystorhinostomy and lacrimal intubation had endoscopic real-time examination of the NLD opening. Morphology of NLD openings (size, shape, mucosal folds), and their location from the axilla of the inferior turbinate were assessed.

RESULTS

Forty-three lacrimal systems of 39 adult patients (11 males, 28 females) with a mean age of 61 years were studied. Thirty-five patients had unilateral involvement, and 74% had anatomical NLD obstruction. Of 43 lacrimal systems, 41 had a visible NLD opening. The majority was sulci shaped (63%, 26/41) followed by fissure type (34%), and 2% had wide-open round morphology. The majority of the openings (93%) were oriented vertically, and 67% (14/21) of the sulci shaped openings continued into gutter like channels along the lateral nasal wall. Mucosal folds were present in 7% (3/41) of the openings along the edges. The mean distance between the opening and the axilla of the inferior turbinate was 3.7± 2.1 mm (median, 3.6; range, 0-7.2).

CONCLUSION

Sulci shaped NLD openings were the most common morphology, and mucosal folds were less commonly observed compared with cadaveric studies.

摘要

目的

研究鼻泪管（NLD）开口进入下鼻道的体内形态。

方法

对接受内镜下鼻腔泪囊吻合术和泪道插管的患者进行 NLD 开口的内镜实时检查。评估 NLD 开口的形态（大小、形状、黏膜皱襞）及其与下鼻甲腋部的位置关系。

结果

研究了 39 例成年患者（11 名男性，28 名女性）的 43 侧泪液系统，平均年龄为 61 岁。35 例为单侧受累，74%存在解剖性 NLD 阻塞。在 43 个泪液系统中，有 41 个可见 NLD 开口。大部分呈沟槽状（63%，26/41），其次为裂隙型（34%），2%为宽圆形。大部分开口（93%）呈垂直方向，21 个沟槽型开口中有 67%（14/21）沿外侧鼻壁继续呈槽状通道。7%（3/41）的开口边缘存在黏膜皱襞。开口与下鼻甲腋部之间的平均距离为 3.7±2.1mm（中位数为 3.6mm，范围为 0-7.2mm）。