dacryocystorhinostomy


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dacryocystorhinostomy

 [dak″re-o-sis″to-ri-nos´tah-me]
surgical creation of an opening between the lacrimal sac and nasal cavity.

dac·ry·o·cys·to·rhi·nos·to·my

(dak'rē-ō-sis'tō-rī-nos'tō-mē),
An operation providing an anastomosis between the lacrimal sac and the nasal mucosa through an opening in the lacrimal bone.
[dacryocyst + G. rhis (rhin-), nose, + stoma, mouth]

dacryocystorhinostomy

(dăk′rē-ō-sĭs′tə-rī-nŏs′tə-mē)
n.
The surgical opening of a passage for drainage from the lacrimal sac into the nasal cavity.

dac·ry·o·cys·to·rhi·nos·to·my

(dak'rē-ō-sis'tō-rī-nos'tŏ-mē)
An operation providing an anastomosis between the lacrimal sac and the nasal mucosa through an opening in the lacrimal bone.
[dacryocyst + G. rhis (rhin-), nose, + stoma, mouth]

dacryocystorhinostomy

An operation to provide a new passage from the LACRIMAL SAC, through the lacrimal bone, to the inside of the nose so as to re-establish tear drainage when the nasolacrimal duct is blocked. Formerly done by cutting bone through an incision near the bridge of the nose, the procedure is now being performed using a laser probe via the nostril and a light source via a tear duct. This is called endonasal laser-assisted dacryocystorhinostomy.

Dacryocystorhinostomy

A surgical procedure to drain the tear sac into the nasal passage.
Mentioned in: Dacryocystitis
References in periodicals archive ?
(11.) Onaran Z, Yilmazbag P Our External Dacryocystorhinostomy Results Performed with Excision of Posterior Flaps and Silicone Tube Intubation.
Adult dacryocystoceles are often observed after dacryocystitis; however, they may also develop idiopathically or due to autoimmune fibrous diseases, sinusitis and paranasal sinus mucoceles, after trauma or osseous configuration in the dysplastic duct wall and tumors, or secondarily to dacryocystorhinostomy surgeries.
It has become more commonly encountered in ENT practice since the advent of endoscopic sinonasal surgery, which has allowed a greater number of otorhinolaryngologists to perform dacryocystorhinostomy.
Pediatric dacryocystorhinostomy for nasolacrimal duct obstruction.
Endoscopic dacryocystorhinostomy. Facial Plast Surg Clin North Am 1997;5(2):195-202.
[8] Some surgeons use an endonasal approach to dacryocystorhinostomy surgery with or without a laser.
It can range from endoscopic septoplasty, turbinoplasty and functional endoscopic sinus surgery to advanced surgery like endoscopic orbital and optic nerve decompression, endoscopic dacryocystorhinostomy and endoscopic skull base approaches.
Dacryoliths are calculi of the lacrimal system observed incidentally during dacryocystorhinostomy. Theories about the formation of dacryoliths mainly suppose that dacryoliths are simply a secondary phenomenon resulting from a lacrimal pathway obstruction and accumulation of debris.