Nasal discharge PPT Flashcards
define GPE
guttural pouch empyema
collection of pus in body cavity (GP)
not Strangles
Agents of GPE
main difference between the agents
Strep. zooepidemicus & Strep. equi
S. zoo is opportunistic
S. equi = pathologic!
highly contagious - isolate! both will look same until culture
Typical Clinical scenario with GPE
recurrent unilateral nasal discharge
waxes & wanes w/ antimicrobial & anti-inflammatory use
What can be a sequela of GPE
Chondroids
concretions of inspissated pus
Tx for GPE
Antimicrobials
-Penicillin ->+/- TMS
–#1 DOC for Strep organisms
GP flush
saline/LRS +/- acetylcysteine
Possible Sx
Causative agent of strangles
Strep equi (aka Strep equi var equi)
esp in younger horses (<6mos), weanlings, yearlings
CS of strangles
Acute onset
Fever, cough, lethargy, anorxia
High morbidity (100%)
Low mortality (2%)
can look like viral dz at first
pathogenesis of strangles
submandibular LN abscessation
- day 0-7 bacteria multiply
- day 7-14 maturation & rupture of affected LN
Complications of strangles
dyspnea/distress
GPE
Purpura hemorrhagica
acute myositis
immune mediated myopathy
myocarditis
brain abscessation
If Strep equi locates in other LN than head/neck what is the term
Bastard strangles
Tx for strangles
Hot pack
Strict Isolation
ALL complicated cases: Penicillin (& NSAIDS - flunixin megulamine
symptomatic tx
quarantine facilities 6 mos - 1 yr
Which one of the following is not a part of strangls control on a horse farm:
Quarantine new arrivals to stable
Prophylactic antibiotics for close contacts
Isolate clinically affectd animals
Clean water & feed buckets, utnsils, hands
Identify/isolate persistent carriers
Prophylactic antibiotics for close contacts
What is most COMMON agent of foal pneumonia?
Strep zooepidemicus +/- Actinobacillus (sometimes reported as Pasteurella)
what is pleuropneumonia
pleural effusion associated w/ pneumonia
What is most common pleural effusion of horse
parapneumonic
CS of pleuropneumonia
Fever
respiratory dz
weight loss
pectoral edema
with pleuropneumonia what will thoracic auscult sound like
absence of sounds ventrally
louder sounds dorsally
straight line across thorax
cardiac sounds louder & they radiate
what are early & late dx findings for CBC, Fibrinogen, Chemistries
early: normal fibrinogen, CBC compatible w/ acutely ill endotoxic horses
later: elevated fibrinogen, neutrophilic leukoctosis (w or w/o left shift)
R. equi pathophysiology
opportunisitic soil organism
foals 1-6 mos of age affected
pick up organism w/i 1st week of life
CS appear 3-4 mos of age
R. equi radiography dx patterns
Abcessation (highly supports dx)
Miliary pattern (highly supports dx)
broncho-pneumonia
intersitial (general pneumonia)
