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Impressum
Transcanalicular THC:YAG Dacryocystorhinostomy
Holak N., Holak H.
Städtisches Klinikum Braunschweig, Augenklinik
Background: The transcanalicular THC:YAG - Dacryocystorhinostomy
(DCR) allows a slightly minor rate of success compared to the classical
external surgical DCR (90%) and a similar rate of success to the endonasal
DCR.
Purpose: Evaluation of a larger case amount over a long period.
Material and Methods: In a five-year study 58 procedures of the transcanalicular
THC:YAG DCR were performed under local anaesthesia by one surgeon. The
size of 3- 4 mm of the ostium was achieved under endoscopic control. The
used Laser was a sLase210 (New Star Lasers/Sunrise, Anburn CA, USA), working
with 2-4 Watt at 2100 nm. 8% were provided with a silicon ringintubation,
92% with monocanalicular stents for 2 months. 5% already underwent a prior
surgery. The observation extended from 7 month to 5 years. The examinations
were performed after 1-6 month and then in 1-5 years.
Results: 94% of the patients could be irrigated in the period of
observation, but 6% suffered still of epiphora and had to be therefore
included with additional 6% to the failed procedures. 10% of the failures
occurred in the first year after the procedure and 12% after 3 years.
Conclusions: The THC:YAG - DCR allows after a short operation an
reconvalescence a 88% rate of success in long term follow up with a minimal
trauma or external scarring.