Paranasal sinus cysts in the horse: Complications related to their presence and surgical treatment in 37 cases.
Equine Vet J
; 51(1): 57-63, 2019 Jan.
Article
em En
| MEDLINE
| ID: mdl-29679404
ABSTRACT
BACKGROUND:
Paranasal sinus cysts (PSC) are a common cause of equine secondary sinusitis. The outcome and associated complications have not been frequently reported.OBJECTIVES:
To review the associated clinical signs, associated morbidities and outcomes of horses treated for PSC. STUDYDESIGN:
Retrospective multicentre case series.METHODS:
Retrospective analysis of case records and telephone follow up survey.RESULTS:
Subjects were 37 horses 1-24 years old that were presented with nasal discharge (n = 31), facial swelling (n = 25) and epiphora (n = 19). Radiography and computed tomography allowed identification of the cyst-induced changes including concomitant tissue destruction (n = 31), leading among other things to local nerve damage causing headshaking (n = 6) and unilateral blindness (n = 1). Radiographic changes to adjacent dental apices were present in 10 horses. Horses over 10 years old showed more of the named associated problems. Post-operative complications included surgical site infection (SSI) (n = 11), nasofrontal suture periostitis (n = 6) and sequestration (n = 1) following removal of the PSC via osteotomy. The long-term response to treatment was available for 28 cases with 22 horses (78.6%) fully cured, 4 (14.3%) partially cured and 2 (7.1%) not responding to treatment. In 7 horses (18.9%) there was recurrence of the cyst post-operatively. MAINLIMITATIONS:
Due to the study being a multicentre retrospective case series with collection of data over an extended period, there may be inconsistency in data recording and absence of reporting of some findings.CONCLUSIONS:
Overall, the diagnosis and treatment of sinus cysts is relatively straightforward and carries a good prognosis. In long-standing cases complications secondary to the expansive growth of cysts will dramatically affect the prognosis for full recovery due to pressure-induced changes to facial bones, cheek teeth and nerves. These secondary complications mainly occurring in older horses may be due to a combination of a relatively longer period of affection and the inflexibility of older horses' bones. Cyst recurrence following treatment can occur in up to 19% of cases.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Doenças dos Seios Paranasais
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Cistos
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Doenças dos Cavalos
Tipo de estudo:
Diagnostic_studies
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Observational_studies
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Prognostic_studies
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Qualitative_research
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Risk_factors_studies
Limite:
Animals
Idioma:
En
Revista:
Equine Vet J
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Dinamarca