Unilateral thyroidectomy in 6 horses.
Vet Surg
; 32(2): 187-90, 2003.
Article
em En
| MEDLINE
| ID: mdl-12692764
ABSTRACT
OBJECTIVE:
To describe the surgical technique, complications, and outcome of thyroidectomy in 6 horses. STUDYDESIGN:
Retrospective study. ANIMALS Six horses, 10 to 22 years of age, with unilateral, rapidly enlarging thyroid masses.METHODS:
Medical records between 1985 and 2000 were reviewed for horses that had unilateral thyroidectomy. Retrieved data included signalment, physical, clinical, and ultrasonographic examination findings, surgical technique, complications, and outcome. A minimum of 6 months follow-up was obtained.RESULTS:
Six horses were identified. Three horses had tracheal compression and 2 of these also had exercise intolerance. On ultrasonography (5 horses), the enlarged thyroid ranged from 125 to 990 cm(3), and had either a heterogeneous (1 horse), cystic (2), or homogeneous (2) appearance. En bloc, unilateral thyroidectomy under general anesthesia was performed in all horses. After surgery, 3 horses had ipsilateral laryngeal hemiplegia, but tracheal compression was resolved. Thyroid masses were adenoma (3), C-cell compact carcinoma (1), and adenocarcinoma (1). No tumor recurrence or metastatic disease was reported 6 to 14 months after surgery.CONCLUSIONS:
Unilateral thyroidectomy can be successfully performed in horses with large thyroid tumors, but laryngeal hemiplegia can be an important surgical complication. Ultrasonographic examination is useful to define thyroid enlargement and location but is seemingly not useful to characterize tumor type. CLINICAL RELEVANCE Thyroidectomy is an uncommon surgical procedure and has an attendant risk for recurrent laryngeal nerve damage. Laryngoscopic examination before and after surgery and careful isolation of the recurrent laryngeal nerve during surgery is recommended.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Doenças da Glândula Tireoide
/
Doenças dos Cavalos
Tipo de estudo:
Diagnostic_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Animals
País/Região como assunto:
America do norte
Idioma:
En
Revista:
Vet Surg
Ano de publicação:
2003
Tipo de documento:
Article