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Transendoscopic Chemical Ablation of Progressive Ethmoidal Hematomas in Standing Horses
Author(s) -
SCHUMACHER JIM,
YARBROUGH TOM,
PASCOE JOHN,
WOODS PHILIP,
MEAGHER DENNIS,
HONNAS CLIFFORD
Publication year - 1998
Publication title -
veterinary surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 79
eISSN - 1532-950X
pISSN - 0161-3499
DOI - 10.1111/j.1532-950x.1998.tb00116.x
Subject(s) - medicine , horse , surgery , hematoma , formaldehyde , paleontology , chemistry , organic chemistry , biology
Objective —To examine the response of horses with progressive ethmoidal hematoma (PEH) to intralesional injection of 4% formaldehyde solution. Study Design —Nasal passages of horses affected with PEH were examined endoscopically at different intervals to determine the effects of intralesional injection of formaldehyde solution. Animals —21 horses with PEH. Methods —PEHs were injected transendoscopically with 4% formaldehyde solution. Horses were examined endoscopically and retreated at different intervals until the PEH was eliminated or was so small that reinjection was not possible. Results —Lesions diminished significantly in size or were eliminated after 1 to 18 injections (median, 5; mean, 7.0 ± 5.62). Seventeen lesions (60.7%) resolved completely after 1 to 18 injections (median, 5; mean, 7.2 ± 5.71). Five lesions decreased markedly in size but did not resolve after receiving 1 to 18 injections (median, 5; mean, 7.6 ± 6.66). Injection of these lesions was discontinued 4.0 to 25.1 months (median, 9.5; mean, 11.02 ± 8.446) after the first injection. The PEH of one horse was removed surgically after one injection. Three horses, one with bilateral PEH, were lost to follow‐up. One horse developed signs of laminitis. No other complications were observed. Conclusions —Horses with a PEH can be treated effectively by transendoscopic, intralesional injection of 4% formaldehyde solution.