Learn about the veterinary topic of Guttural Pouch Disease in Horses. Find specific details on this topic Guttural Pouch Mycosis. Guttural pouch mycosis, horse. Guttural pouch empyema. Trostle SS(1), Rantanen NW, Nilsson SL, Oman DD, Cranney GC. Author information: (1)San Luis Rey Equine Hospital, Holly Ln . J Am Vet Med Assoc. Dec 1;(11) Empyema of the guttural pouch (auditory tube diverticulum) in horses: 91 cases (). Judy CE(1).

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Very little work has been done to evaluate the normal flora of the equine guttural pouch, and it is assumed to empyrma similar to that of the rest of the equine upper respiratory tract.

Alternatively, a Chamber’s catheter can be placed nasally, advanced into the nasopharynx, and viewed by the endoscope, which is passed into the opposite nostril. How to cite this article.

Empyema of the guttural pouch (auditory tube diverticulum) in horses: 91 cases ().

The guttural pouch is thoroughly examined by the clinician, who methodically looks at gutttural medial and lateral compartments, dorsally and ventrally, for evidence of mycosis, empyema, temporohyoid osteopathy, and less common conditions, such as chondroids, cysts, and neoplasia.

Retrospective analysis of 50 cases of guttural pouch tympany in foals. Chronic cases may develop chondroids inspissated pus with the appearance of ‘cottage cheese’.

These retention catheters are sometimes difficult to place, can only facilitate small amounts of fluid for irrigation, and are frequently sneezed or blown out by the horse. Necropsy was immediately performed and revealed the fullness of right and left GP by mucopurulent exudate, no signs of retropharyngeal abscesses, presence of mucous accumulation in the trachea and diffuse pulmonary congestion in the lungs suggesting pneumonia.

What is your diagnosis? Guttural pouch empyema.

Guttural pouch empyema is a the infection and accumulation of purulent material within the guttural pouch GP. The Chamber’s catheter, guhtural properly advanced to complete depth into the guttural pouch, has a very characteristic feel, without any resistance; otherwise, at this depth, resistance would be felt at the caudal aspect of the pharynx, and the horse would begin to swallow. We advise against blind placement of the Chamber’s catheter and recommend that placement be confirmed by endoscopic visualization.


If your horse suffers from recurrent empyema your veterinarian may recommend a fistula is created to manage this. Distention of the balloon within the funnel of the pharyngeal opening could cause pressure necrosis. The colostral antibodies ingested during the first 24 hours of life reaches the nasopharyngeal mucosa providing protection SWEENEY et al.

Standing lateral radiographs of the skull should show retropharyngeal swelling and thickening of the ventral wall. The fluid is yuttural submitted for gututral as already described. Dysphagia associated with guttural pouch empyema and dorsal displacement of the soft palate. This condition is notoriously difficult to treat due to the difficulty in removing all bacteria from the area. The guttural pouches are structures that are unique to few species of animals. Indications for systemic antimicrobials in guttural pouch empyema include protection of the lower airways from contaminated drainage from the pouch, especially during lavage; prevention and treatment of aspiration pneumonia; and treatment of lymph node abscesses.

A current hypothesis is that they play a role in cooling blood to the brain, 2 although their emyema is still under debate. The goals of culturing the affected guttural pouch are to confirm the presence of S. Cough and dysphagia were evident, and the foal showed extended neck carriage. The dam, referred with its foal, had the udder full of milk and showed a ruptured retropharyngeal abscess on the left side Figure 1D.

A ventrodorsal radiograph has been recommended to help differentiate unilateral from bilateral disease. This infection causes the membranes of the pouch to become thickened and fill with pus.


Horses with persistent nasal discharge should be examined endoscopically for guttural pouch empyema. The owners also reported that the foal’s dam, and other three mares of the same farm, had strangles recently and were not treated.

The foal presented with severe right and left retropharyngeal swellings Figure 1A-B that were painful on palpation and with a copious bilateral nasal mucopurulent discharge Figure 1C.

Guttural Pouch Empyema – WikiVet English

Also, a horse may require irrigation of the guttural pouches for an extended period of time beyond what empywma initially estimated.

Other clinical signs usually include cough, fever, anorexia, respiratory noise, depression, dyspnea, and dysphagia.

Immunologic disorders in neonatal foals. The following measures should be taken: It most commonly piuch secondary to one of the following:. Concerning the sudden death, it is known that bacterial pneumonia in foals may lead to the development of sepsis WILSON, ; ROY, and severe sepsis is accompanied by multiple organ dysfunction syndrome due to factors including increased circulating levels of inflammatory mediators, hypotension and poor vascular perfusion BONE et al.

Before passing the tubing into the endoscope, a or gauge needle that has had the sharp end sawed off is placed in one end of the tubing to facilitate attachment of a syringe for aspiration.

Equine guttural pouches auditory tube diverticula are unique because of their size—Equine guttural pouches are the largest of several species examined in one study. The most common owner complaint and abnormal finding was persistent nasal discharge.