Neodymium:yttrium-aluminum-garnet laser-assisted excision of progressive ethmoid hematomas in horses: 20 cases (1986-1996).

Abstract: 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. Methods: Retrospective study. Methods: 21 horses with 26 PEH. Methods: 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 (14) 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 followup 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). Conclusions: 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.
Publication Date: 1999-04-14 PubMed ID: 10200800
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  • Journal Article

Summary

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This research explores a technique using a neodymium:yttrium-aluminum-garnet (Nd:YAG) laser to remove progressive ethmoid hematoma (PEH) in horses, aiming to determine the rate at which the clinical signs of PEH reoccur in these animals over a minimum period of 12 months. The study suggests that this method has a recurrence rate similar to that of conventional techniques, with horses suffering from bilateral lesions more likely to encounter recurrence of PEH.

Methodology

  • The study was a retrospective one, analyzing the medical records of 21 horses with 26 instances of PEH between December 1986 and August 1996.
  • All horses analyzed were treated using an Nd:YAG laser excision technique. This involved either a unilateral (18 surgeries) or bilateral (14) frontonasal bone flap with the excision of the mass.
  • The researchers examined one exceptional case carefully, where a horse suffering from bilateral PEH underwent a unilateral bone flap twice, with the procedures being executed a year apart.

Results

  • One horse passed away during the course of the study.
  • From the 20 remaining horses, which had follow-up times of 12 months or longer, four had a recurrence of PEH, resulting in an overall recurrence rate of 20% (5 out of 25 instances of PEH).
  • Interestingly, among the horses with bilateral lesions, half of them had reoccurring PEH. This indicated that the recurrence rate for horses with bilateral PEH (3 out of 6 horses) was higher than that for horses with unilateral PEH (1 out of 14 horses).

Conclusion

  • The use of the Nd:YAG laser-assisted technique in the treatment of PEH through a frontonasal bone flap yields a comparable recurrence rate with other traditional techniques.
  • Horses diagnosed with bilateral lesions showed a greater likelihood of a return of PEH.

Cite This Article

APA
Rothaug PG, Tulleners EP. (1999). Neodymium:yttrium-aluminum-garnet laser-assisted excision of progressive ethmoid hematomas in horses: 20 cases (1986-1996). J Am Vet Med Assoc, 214(7), 1037-1041.

Publication

ISSN: 0003-1488
NlmUniqueID: 7503067
Country: United States
Language: English
Volume: 214
Issue: 7
Pages: 1037-1041

Researcher Affiliations

Rothaug, P G
  • Department of Clinical Studies, New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square 19348, USA.
Tulleners, E P

    MeSH Terms

    • Animals
    • Ethmoid Sinus
    • Female
    • Follow-Up Studies
    • Hematoma / surgery
    • Hematoma / veterinary
    • Horse Diseases / surgery
    • Horses
    • Laser Therapy / veterinary
    • Male
    • Paranasal Sinus Diseases / surgery
    • Paranasal Sinus Diseases / veterinary
    • Recurrence
    • Time Factors

    Citations

    This article has been cited 1 times.
    1. Vlaminck L, Pollaris E, Vanderperren K, Tremaine WH, Raes E. Diagnosis and Surgical Treatment of Idiopathic Primary Sino-Nasal Obstruction in Miniature Horse Breeds: Long-Term Follow-Up of Seven Cases.. Front Vet Sci 2021;8:680150.
      doi: 10.3389/fvets.2021.680150pubmed: 34295933google scholar: lookup