Eight-flap anastomosis in external dacryocystorhinostomy

Takahashi, Yasuhiro; Nakamura, Yasuhisa; Kakizaki, Hirohiko

doi:10.1136/bjophthalmol-2014-306570

Cited by 6 publications

(7 citation statements)

References 20 publications

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“…The eight-flap method 21 and the three-flap method 22 have been reported as ways to prevent raw surface formation. The eight-flap method involves the creation of detailed mucosal flaps, which are pieced together like a puzzle to minimize the raw areas between each suture holding the lacrimal sac to the nasal mucosa.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, to improve the tear flow, it was necessary to devise a surgical procedure that would prevent the formation of a raw surface to prevent granulation. The eight-flap method 21 and the three-flap method 22 have been reported as ways to prevent raw surface formation. The eight-flap method involves the creation of detailed mucosal flaps, which are pieced together like a puzzle to minimize the raw areas between each suture holding the lacrimal sac to the nasal mucosa.…”

Section: Discussionmentioning

confidence: 99%

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Lacrimal Plasty with Dacryocystorhinostomy-Anastomosis Using Microsurgery

Yanagisawa

Yuzuriha

2023

Plastic and Reconstructive Surgery - Global Open

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Background: Dacryocystorhinostomy (DCR) is the standard treatment for nasolacrimal duct obstruction, but it has the disadvantage of creating a raw surface, which may lead to reocclusion due to the development of postoperative granulation tissue. In this study, we developed and evaluated an ideal new surgical method, dacryocystorhinostomy-anastomosis (DCR-A), involving end-to-side anastomosis under microscopic visualization that does not result in raw surfaces. Methods: In DCR, the lateral aspect of the dacryocyst and the nasal mucosa are incised, and the mucosal valves are sutured together. In DCR-A, the occluded section of the dacryocyst or nasolacrimal duct was trimmed and anastomosed by circumferential suturing through a hole in the nasal mucosa. The success rate and the requirement for postoperative therapy were compared between 21 sides of DCR patients and 11 sides of nasal DCR-A patients. Results: DCR-A was significantly better than conventional DCR. No additional postoperative therapy was required for DCR-A. Conclusion: DCR-A improves symptoms of nasolacrimal duct obstruction to a greater extent than conventional DCR and does not require additional postoperative treatment.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Lacrimal Plasty with Dacryocystorhinostomy-Anastomosis Using Microsurgery

Yanagisawa

Yuzuriha

2023

Plastic and Reconstructive Surgery - Global Open

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“…[12] y minimiza la cicatriz al colocarse las líneas de relajación de la tensión de la piel además de evitar los vasos angulares favoreciendo el acceso a la fosa lagrimal. [13] La incisión se realiza a 10 mm del canto medial y se extiende inferior y lateralmente hacia el pliegue palpebral inferior Figura 1. Disección del saco.…”

Section: Dacriocistorrinostomía Externa (Dcr-ext)unclassified

“…Creación del colgajos mucosos [13]. Crearemos colgajos de mucosa de saco lagrimal y colgajos de mucosa nasal para unirlos entre sí.…”

Section: Dacriocistorrinostomía Externa (Dcr-ext)unclassified

Dacriocistorrinostomía externa, conjuntivo-dacriocistorrinostomía y cirugía de la vía lagrimal en el meato inferior

Marqués-Fernández

Florez

Galindo‐Ferreiro

2020

ORL

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Introducción y objetivo: Realizar una revisión sobre la dacriocistorrinostomía externa (DCR-ext), sondaje de la vía lagrimal y conjuntivodacriocistorrinostomía(CDCR) empleadas ante la obstrucción de la vía lagrimal. Material y métodos : Revisión bibliográfica sobre técnicas quirúrgicas mencionadas. Discusión: La obstrucción de la vía lagrimal puede dividirse según su localización en proximales y distales. Ante obstrucciones distales, la DCR ext es la técnica gold standard con porcentajes de éxito superiores al 95%, y la CDCR en caso de obstrucciones proximales.El sondaje de la vía lagrimal es la primera indicación quirúrgica en obstrucción congénita.

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“…Any stenosis or obstruction in the lacrimal duct system can induce symptoms of epiphora, chronic ocular surface inflammation, and pyorrhea, which may increase the risk of endophthalmitis after intraocular surgery (Lopez et al, 1993;Prabhasawat and Tseng, 1998;Kam et al, 2014). Various surgical treatments, including traditional or laser-assisted dacryocystorhinostomy, silastic tube intubation, balloon dacryoplasty, and laser lacryocystoplasty, can be applied to alleviate obstruction in lacrimal duct systems (Goldstein et al, 2006;Avgitidou et al, 2015;Takahashi et al, 2015). However, the effectiveness of these treatments depends on the integrity of lacrimal duct mucosa (Takahashi et al, 2013;Baran et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

潜在候选细胞构建组织工程的泪道上皮: 兔的组织学和细胞学研究

Xie

Cui

2015

J. Zhejiang Univ. Sci. B

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Abstract:Objective: Injury and deficiency of the lacrimal duct epithelium (LDE) can lead to a variety of lacrimal diseases. The purpose of this study was to characterize potential candidate cells for constructing a tissue-engineered LDE. Methods: Different areas of the conjunctiva and lacrimal duct tissue were removed from male adult New Zealand white rabbits for histological evaluation. Hematoxylin and eosin staining and immunohistochemical staining of cytokeratin AE1+AE3, cytokeratin 4, Ki-67, and MUC5AC were observed by light microscopy. The surface morphologies of different epithelial tissues and cellular structures were examined using field-emission scanning electron microscopy and transmission electron microscopy. Epithelial cells were isolated from tissues and identified by specific markers. In vitro, proliferative ability and Western blot analyses of the proliferating cell nuclear antigen (PCNA) of different epithelial cells cultured in identical environments were investigated and compared. Results: Histologically, the epithelial specific markers, cytokeratin AE1+AE3 and cytokeratin 4, were expressed in the conjunctiva epithelium and the LDE. Notably, highly proliferative cells stained with Ki-67 were concentrated under the epithelium in a dome structure of the posterior palpebral conjunctiva. Differentiated goblet cells were also found to a lesser extent in this region. Primary palpebral and fornical conjunctival epithelial cells (PFCECs), bulbar conjunctival epithelial cells (BCECs), and lacrimal duct epithelial cells (LDECs) were successfully separated from tissues. In vitro, rabbit PFCECs and LDECs grew faster and expressed more PCNA than BCECs. Conclusions: PFCECs are anatomically similar to LDECs. They also have similar morphological characteristics, immune phenotypes, and proliferation features. PFCECs are therefore potential candidate cells to replace LDECs in tissue engineering to treat lacrimal duct diseases.

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Eight-flap anastomosis in external dacryocystorhinostomy

Abstract: The 8-flap ex-DCR showed complete anatomical success and favourable functional success with no postoperative complications.

Cited by 6 publications

References 20 publications

Lacrimal Plasty with Dacryocystorhinostomy-Anastomosis Using Microsurgery

Lacrimal Plasty with Dacryocystorhinostomy-Anastomosis Using Microsurgery

Dacriocistorrinostomía externa, conjuntivo-dacriocistorrinostomía y cirugía de la vía lagrimal en el meato inferior

潜在候选细胞构建组织工程的泪道上皮: 兔的组织学和细胞学研究

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