dacryocystorhinostomy
Pronunciation: DAK-ree-oh-SIS-toh-RYE-nos-toh-mee
Surgical procedure to create a drainage pathway between the lacrimal sac and nasal cavity.
Full Definition
Dacryocystorhinostomy (DCR) is a surgical procedure performed to treat nasolacrimal duct obstruction by creating an alternative drainage route for tears from the lacrimal sac directly into the nasal cavity. The procedure can be performed through an external approach via a skin incision or through an endonasal endoscopic approach. During surgery, a bony ostium is created between the lacrimal sac and the middle meatus of the nose, allowing tears to bypass the obstructed nasolacrimal duct. Success rates are high, with most patients experiencing resolution of tearing and discharge symptoms.
Usage
Usage note: Commonly abbreviated as DCR in clinical documentation.
In Context
- "Endoscopic dacryocystorhinostomy was performed to address the patient's chronic epiphora." — Operative note
- "The external dacryocystorhinostomy resulted in patent anastomosis with complete resolution of tearing." — Post-operative follow-up