Objective - To describe a technique of contact neodymium:yttrium-aluminum-garnet (Nd:YAG) laser-assisted excision of progressive ethmoid hematoma (PEH) in horses, to determine the recurrence rate of clinical signs of PEH in horses with follow-up time of a minimum of 12 months, and to compare this result with reported results achieved by using conventional techniques. Design - Retrospective study. Animals - 21 horses with 26 PEH. Procedure - Medical records of all horses with PEH treated by Nd:YAG laser excision from December 1986 through August 1996 were analyzed. Twenty-one horses underwent unilateral (18 surgeries) or bilateral (4) frontonasal bone flap with excision of the mass, using an Nd:YAG laser. One horse with bilateral PEH underwent a unilateral bone flap twice, 1 year apart. Results - 1 horse died. Four of 20 horses with follow-up times of 12 months or longer had recurrence of PEH. The PEH recurrence rate was 20% (5/25 PEH). Three of 6 horses with bilateral lesions had recurrence of PEH. Recurrence rate for horses that had bilateral PEH (3/6 horses) was greater than for horses with unilateral PEH (1/14 horses). Clinical Implications-Treatment of PEH by Nd:YAG laser excision through a frontonasal bone flap results in a recurrence rate comparable with that reported for conventional techniques. Horses with bilateral lesions are more likely to have a recurrence of PEH.
CITATION STYLE
Rothaug, P. G., & Tulleners, E. P. (1999). Neodymium:Yttrium-aluminum-garnet laser-assisted excision of progressive ethmoid hematomas in horses: 20 Cases (1986-1996). Journal of the American Veterinary Medical Association, 214(7), 1037–1041. https://doi.org/10.2460/javma.1999.214.07.1037
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