Flashcards in Vomiting or regurgitation? Deck (11):
no prodromal nausea
undigested food / froth
soon after eating
may be apinful
Investigating regurgitation causes?
unsedated chest rads
Anatomic - vascular ring anomaly, cricopharyngeal disease, hiatal hernia, diverticulum
obstruction - stricture, luminal FB, extraluminal mass
Oesophagitis - trauma, reflex, irritation
Motility disorders - megoesophagus, neuropathy, myopaths
Most common causes of regurgitation?
Foreign body - lodge where physiological narrowing, remove/push to stomach
oesophagitis - chemical injury, medication (doxy in cats) , gastro - oesophageal reflux (anaesthesia, vom, feeding tube), use sucralfate and inhibit gastric acid
megaoesophagus - idiopathic, myasthenia gravis, thymoma, hypoadrenocorticism
no swallowing pain
symptom - not disease
What can the vomiting centre in the brainstem be influenced by?
vagal and symp afferents from abdomen/stomach
chemoreceptor trigger zone in brainstem which detects blood borne substances
primary causes of vomiting
infection - parasites, parvo
inflammatory disease - IBD, ulcers
mainly acute except neoplasia and infl disease
Secondary causes of vomiting
addisons disease = hypoadrenocorticism
Acute renal disease
all chronic except toxin ingestion
Types of drugs to treat vomiting?
proton - pump inhibitors (stop HCl in stomach)
Anti-collinergics (stop vagus input)
Anti histamines (block parietal cells)
What is the guide used for how dilated the int is?
1.6 x the height of L5 = localised dilation = 90% sure of obstruction