34 Sneezing INITIAL PRESENTATION Persistent episodic sneezing. Ptarmus (spasmodic sneezing). INTRODUCTION Sneezing is a protective reflex mediated by the medulla oblongata. Sensory input from pain fibres (trigeminal nerve) in the nasal mucosa initiate the reflex. A rapid inspiration followed by the explosive passage of air through the nose and mouth expels irritants. Any nasal disease may present as an acute onset of persistent sneezing. Nasal discharge typically develops. Sneezing with its subsequent loss has been reported in humans secondary to infarction of the medulla. Reverse sneezing is an outburst of noisy forceful inspiration triggered by nasopharyngeal irritation which typically occurs in small breed dogs of any age. Episodes last seconds and can be associated with excitement or drinking. The problem is self-limiting and does not result in anoxia or collapse. Faulty interplay of the epiglottis and soft palate is thought to be the cause. It is not a sign of neurological disease. SIGNALMENT A 7-year-old neutered female Shetland sheepdog. Only gold members can continue reading. Log In or Register to continue Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Related posts: Metabolic encephalopathy: hepatic encephalopathy Meningioma Idiopathic epilepsy LMN paresis and paralysis: Brachial plexus avulsion Stay updated, free articles. Join our Telegram channel Join Tags: Saunders Solutions in Veterinary Practice Small Animal Neurology Sep 3, 2016 | Posted by admin in SMALL ANIMAL | Comments Off on Sneezing Full access? Get Clinical Tree
34 Sneezing INITIAL PRESENTATION Persistent episodic sneezing. Ptarmus (spasmodic sneezing). INTRODUCTION Sneezing is a protective reflex mediated by the medulla oblongata. Sensory input from pain fibres (trigeminal nerve) in the nasal mucosa initiate the reflex. A rapid inspiration followed by the explosive passage of air through the nose and mouth expels irritants. Any nasal disease may present as an acute onset of persistent sneezing. Nasal discharge typically develops. Sneezing with its subsequent loss has been reported in humans secondary to infarction of the medulla. Reverse sneezing is an outburst of noisy forceful inspiration triggered by nasopharyngeal irritation which typically occurs in small breed dogs of any age. Episodes last seconds and can be associated with excitement or drinking. The problem is self-limiting and does not result in anoxia or collapse. Faulty interplay of the epiglottis and soft palate is thought to be the cause. It is not a sign of neurological disease. SIGNALMENT A 7-year-old neutered female Shetland sheepdog. Only gold members can continue reading. Log In or Register to continue Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Related posts: Metabolic encephalopathy: hepatic encephalopathy Meningioma Idiopathic epilepsy LMN paresis and paralysis: Brachial plexus avulsion Stay updated, free articles. Join our Telegram channel Join
