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Abstract：
OBJECTIVE: Dacryoliths of the canalicular pathway are classically attributed to Actinomyces species as the most common organism. However, global shifts toward Streptococcus and Staphylococcus species have been reported. The objective of this article is to update the American Midwest epidemiology of lacrimal system dacryoliths for targeted clinical treatment.
METHODS: A retrospective chart review from January 2015 to 2021 of patients with a history of surgical procedure for lacrimal removal of dacryolith for canaliculitis, canalicular obstruction, dacryocystitis, and nasolacrimal duct obstruction was included. Specimens were sent for histopathological evaluation and microbial culture.
RESULTS: A total of 48 specimens were included. The most common organism isolated for canalicular pathology was Actinomyces spp (23%), followed by Staphylococcus spp (21%) and Streptococcus spp (19%). Histopathological staining accounted for 45% of Actinomyces isolation when culture data inconclusive. In a subgroup analysis of lacrimal sac dacryoliths, the most common organism was Staphylococcus spp (29%). Actinomyces species were not isolated from the lacrimal sac or nasolacrimal duct.
CONCLUSIONS: Actinomyces maintains a microbial predominance in canalicular dacryoliths and requires careful culture and histopathological analysis for its fastidious nature. Lacrimal sac and nasolacrimal duct dacryolith found no isolates of Actinomyces, and the most common organism was Staphylococcus.
METHODS: A retrospective chart review from January 2015 to 2021 of patients with a history of surgical procedure for lacrimal removal of dacryolith for canaliculitis, canalicular obstruction, dacryocystitis, and nasolacrimal duct obstruction was included. Specimens were sent for histopathological evaluation and microbial culture.
RESULTS: A total of 48 specimens were included. The most common organism isolated for canalicular pathology was Actinomyces spp (23%), followed by Staphylococcus spp (21%) and Streptococcus spp (19%). Histopathological staining accounted for 45% of Actinomyces isolation when culture data inconclusive. In a subgroup analysis of lacrimal sac dacryoliths, the most common organism was Staphylococcus spp (29%). Actinomyces species were not isolated from the lacrimal sac or nasolacrimal duct.
CONCLUSIONS: Actinomyces maintains a microbial predominance in canalicular dacryoliths and requires careful culture and histopathological analysis for its fastidious nature. Lacrimal sac and nasolacrimal duct dacryolith found no isolates of Actinomyces, and the most common organism was Staphylococcus.
摘要：
目的：泪小管途径的泪液是最常见的放线菌属。然而,据报道，全球向链球菌和葡萄球菌转移。本文的目的是更新美国中西部泪道系统泪液的流行病学，以进行针对性的临床治疗。
方法：2015年1月至2021年的回顾性图表回顾了患有泪小管炎的泪腺切除术的患者，小管阻塞,泪囊炎,和鼻泪管阻塞包括在内。将标本送去进行组织病理学评价和微生物培养。
结果：共包括48个样本。最常见的经管病理学分离的生物是放线菌属（23％），其次是葡萄球菌（21％）和链球菌（19％）。当培养数据不确定时，组织病理学染色占放线菌分离的45％。在泪囊泪液的亚组分析中，最常见的细菌是葡萄球菌（29％）。未从泪囊或鼻泪管中分离出放线菌。
结论：放线菌在泪小管中保持微生物优势，需要仔细的培养和组织病理学分析，因为其挑剔的性质。泪囊和鼻泪管泪石没有发现放线菌的分离株，最常见的细菌是葡萄球菌。
方法：2015年1月至2021年的回顾性图表回顾了患有泪小管炎的泪腺切除术的患者，小管阻塞,泪囊炎,和鼻泪管阻塞包括在内。将标本送去进行组织病理学评价和微生物培养。
结果：共包括48个样本。最常见的经管病理学分离的生物是放线菌属（23％），其次是葡萄球菌（21％）和链球菌（19％）。当培养数据不确定时，组织病理学染色占放线菌分离的45％。在泪囊泪液的亚组分析中，最常见的细菌是葡萄球菌（29％）。未从泪囊或鼻泪管中分离出放线菌。
结论：放线菌在泪小管中保持微生物优势，需要仔细的培养和组织病理学分析，因为其挑剔的性质。泪囊和鼻泪管泪石没有发现放线菌的分离株，最常见的细菌是葡萄球菌。
