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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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. The dam, referred with its foal, had the udder full of milk and showed a ruptured retropharyngeal abscess on the left side Figure 1D.

Veterinary Clinics of North America: The owners also emypema that the foal’s dam, and other three mares of the same farm, had strangles recently and were not treated. However, development of guttura kind of infection in foals younger than 3 months is the exception rather than the rule.

Signs include cranial nerve dysfunction cranial nerves VII through XIIepistaxis with mycosis of the internal and external carotid and maxillary arteries, and bilateral or unilateral mucopurulent nasal discharge. If this is not successful, your veterinarian will discuss the numerous approaches that may be indicated for your horse; scalpel incision or laser surgery may be recommended. No fungal organisms were isolated. In cases of GP empyema, the guttural pouches should be drained and lavaged daily with copious amounts of water, sterile saline or dilute antiseptic administered by indwelling Foley catheters until the infection resolves.

A Chamber’s catheter can be passed blindly and nasally into the nasopharynx and advanced into the guttural pouch by advancing the curved end beneath the flap of the medial lamina of the ipsilateral pouch. The technique has been thoroughly described, 8 and the purposes of the procedure are to evaluate the size and margin as well as whether the vessels are patent by using a positive-contrast medium.


Distention pouc the balloon within the funnel of the pharyngeal opening could cause pressure necrosis. The catheter is rotated to open the guttural pouch flap, allowing easy passage of the endoscope. This infection causes the membranes of the pouch to become thickened and fill with pus. Deborah Penteado Martins Dias, email: Chronic cases may develop chondroids inspissated pus with the appearance of ‘cottage cheese’.

Dixon, P Swellings of the head region in the horse In Practice ; ABSTRACT The present report describes a 2-month-old foal which signs of respiratory infectious disease, bilateral retropharyngeal swelling and nasal mucopurulent discharge, suggesting guttural pouch empyema.

Diseases of the guttural pouches. Once the Chamber’s catheter is epmyema to be in pouvh guttural pouch, a fluid administration line can be secured to the end of the catheter and a substantial volume up to 3 to 5 L of isotonic balanced electrolyte solutions can be flushed through the system using a pump, manual pressure, or a fluid pressure bag.

The pouches can be drained by catheter or surgically.

Streptococcus equi subspecies zooepidemicus or, of particular importance, Streptococcus equi subspecies equi. For young foals, the prognosis may be very guarded due to the risk of anatomical defects. The most common bacterial species that result in guttural pouch empyema include Streptococcus zooepidemicus and Streptococcus equi.

The owners reported that the foal lived in a herd that experienced an outbreak of strangles. The goals of culturing the affected guttural pouch are to confirm the presence of S. Probably the stress caused by physical restraint for catheter implantation and fluid administration, increased the tissues oxygen consumption, and the foal developed myocardial ischemia due to poor perfusion, followed by a cardiac arrest. Aggressive treatment with lavage and endoscopic snare removal of chondroids offers a good prognosis and may make surgical intervention unnecessary.

They are lined with a thin membrane, which separates them from nerves and the jugular artery. Other clinical signs usually include cough, fever, anorexia, respiratory noise, depression, dyspnea, and dysphagia.

What is your diagnosis? Guttural pouch empyema.

Guttural pouch lavage and establishment of drainage are the most helpful factors in successfully treating guttural pouch empyema, and this is often accompanied by antiinflammatories and systemic antimicrobials. All these animals were housed together in a large paddock, and its deworming and vaccination against influenza viruses, encephalomyelitis, tetanus mepyema rabies statuses were up-to-date.


These structures are large air filled sacs, positioned on either side of the neck, below the ear of the horse. 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.

Birth and colostrum intake were normal for this foal. Right A and left B retropharyngeal swelling in a foal with bilateral guttural pouch empyema. A foal is practically immunocompetent at birth, and its primary immune response confers protection for 2 weeks. Your veterinarian will discuss the best treatment plan for your horse with you. The prognosis empeyma horses suffering from this disease is good if treatment is commenced early. Swabs should be taken from the guttural pouch and cultured.

Once the biopsy instrument is well seated, the endoscope is rotated counterclockwise for the right guttural pouch and clockwise for the left guttural pouch and advanced slowly into the guttural pouch.

Recovery of Guttural Pouch Empyema in Horses.

The epithelium is pseudostratified and ciliated and contains goblet cells; mucous glands and lymph nodules are also present. Once in the guttural pouch, the poucg is advanced, and up to 50 ml of sterile saline can be instilled into the guttural pouch and subsequently aspirated using the endoscope to visualize the fluid.

Guttural pouch: empyema

The history and clinical signs may be suggestive of GP empyema but it can be confirmed by one of the following methods:. Furthermore, the foal lived in a herd that was not vaccinated against strangles and was exposed to an environment heavily populated by Streptococcus equi subspecies equi during an outbreak of the disease.

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