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Laryngeal Hemiplegia

Laryngeal Hemiplegia. Cause of Laryngeal hemiplegia. Cause Unknown. Diagnosis. The Slap Test The slap test evaluates the adductor function of the arytenoids Endoscopy To view the dynamics of the laryngeal structures during respiration. Surgical Protocol.

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Laryngeal Hemiplegia

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  1. Laryngeal Hemiplegia

  2. Cause of Laryngeal hemiplegia • Cause Unknown

  3. Diagnosis • The Slap Test The slap test evaluates the adductor function of the arytenoids • Endoscopy • To view the dynamics of the laryngeal structures during respiration

  4. Surgical Protocol • There are four treatment options for this condition: • Prosthetic laryngoplasty (tie back and most common) • Ventriculectomy • Cordecotmy • Neuromuscular pedicle graft

  5. Tie Back • This surgical procedure consists of stitching the paralysed flapper in an open position so that normal air flow can be restored.

  6. Post Operative care • Prior to Surgery antibiotic are administered • Continue with antibiotics after surgery 3-7 day • Anti-inflammatory Meds 3-7 days post op • Monitoring of incision for swelling, heat and discharge. • Cleaning on the surgical site BID and application of Vaseline around the site and down the neck

  7. Long Term Prognosis • Depends on the horses level of performance and surgical treatment performed • Success of treatment ranges from 50-90% depending on the horses work. • Race horses require full abduction and stabilization of the arytenoid, to remove air flow obstruction.

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