wk 3 5 endoscope and GI tract Flashcards
capsules used to pick up
difficult to find inflammation/bleeding
takes pictures every couple minutes
batteries may leak from capsules and cause
gut ulcers
EUS scopes used to observe
organs/tissues from within stomach
mini ultrasound
visual diagnosis which can be obtained through scopes
oesophagitis gastritis ulceration coeliac crohns ulceative colitis sclerosing cholangitis
ulcers are yellow indicate
healing - fibre
what vascullar abnormalities can be found in endoscopies
varices
ectatic blood vessels (Dilation)
angiodysplasia (little/no smooth muscle, commonest cause of GI bleeding)
what can be treated through endoscopy
gi bleeding
nerve blocks
resection of early cancer
3 types of bleeding associated with gut
variceal
arterial
angiodysplasia
sign of major gi haemorrohage
vomit consisting of dark red, clotted blot
variceal bleeding is due to
portal hypertension
veins expand, rupture
what can be given for arterial bleeding
injection therapy - adrenaline
heater probe - coagulates
clips - ligate (ties)
angiodysplasia treated by
radiofrequency ablation
PEG tube used
for patients receiving radiotherapy of neck/face, recovering from stroke
(tube into stomach from bellly)
when would endoscopy be used for surveillance
inflammatory bowel disease
ulcerative colitis
colonic polyps and colorectal cancer
barretts oesophageus
possible complications associated with endoscopys
resp arrest aspiration cardiac arrest bleeding perforation infection