PubMed · 6586457
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1983. Symposium: The attack by cigarettes.. https://pubmed.ncbi.nlm.nih.gov/6586457/
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Magnetic resonance imaging has become the standard means of imaging pediatric airway obstruction due to vascular anomalies. However, magnetic resonance imaging requires a long acquisition time and is prone to motion artifacts. The development of spiral or helical computed tomography provides an alternative imaging modality for evaluating pediatric airway obstruction. We present the case of a neonate with a double aortic arch which initially was not identified on magnetic resonance imaging but was visualized with spiral computed tomography. If suspicion of an intra-thoracic abnormality is high, spiral computed tomography may be a useful adjunct or replacement to magnetic resonance imaging.
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OBJECTIVE: To determine clinical signs, physical examination findings, radiographic features, and concurrent diseases in cats with laryngeal paralysis, as well as evaluate the outcome of medical or surgical management. DESIGN: Retrospective study. ANIMALS: 16 cats. PROCEDURE: Medical records from January 1990 to April 1999 were examined for cats with laryngeal paralysis. Signalment, clinical signs, physical examination findings, cervical and thoracic radiographic findings, laryngeal examination results, and clinical outcome were reviewed. RESULTS: No breed or sex predilection was identified in 16 cats with laryngeal paralysis. The most common clinical signs included tachypnea or dyspnea, dysphagia, weight loss, change in vocalization, coughing, and lethargy. Clinical signs were evident for a median of 245 days. Airway obstruction was apparent on cervical and thoracic radiographic views in 9 cats. Examination of the larynx revealed bilateral laryngeal paralysis in 12 cats and unilateral laryngeal paralysis in 4 cats. The 4 cats with unilateral disease were managed with medical treatment, and 3 of these had acceptable long-term outcomes. Seven of 12 cats with bilateral paralysis underwent surgery; procedures performed included left arytenoid tie back, bilateral arytenoid tie back and ventriculo-cordectomy, and partial left arytenoidectomy. One cat was euthanatized as a result of complications from surgery. CONCLUSIONS AND CLINICAL RELEVANCE: Laryngeal paralysis is an uncommon cause of airway obstruction in cats. Cats with less severe clinical signs (often with unilateral paralysis) may be successfully managed with medical treatment, whereas cats with severe airway obstruction (often with bilateral paralysis) may benefit from surgical intervention.