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Studies by Washabau, et al. have shown that in naturally occurring cases of feline megacolon, sections of longitudinal and circular smooth muscle of all parts of. Constipation is defined as the infrequent or difficult evacuation of stool. It is a common problem in cats, may be acute or chronic and does not. Megacolon occurs more frequently in cats than dogs and is usually seen in middle-aged to geriatric cats. The ascending, transverse, and.

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Systemic rehydration must be addressed and may be achieved through parenteral fluid therapy, including regular subcutaneous fluids in fe,ine home, feeding canned foods, adding water or broth to the food, feeding meat broths, or the use of running water fountains in the home.

Etiology Unlike humans with megacolon, in cats there is no evidence to show any deficiency in enteric neuronal network.

Some cats may become refractory to these therapies, however, as they progress through moderate or recurrent constipation to obstipation and dilated megacolon.

Other H2 receptor antagonists, cimetidine and famotidine are not effective.

Megacolon and Constipation in Cats

I would comply faithfully with any It does not, in itself, imply loss of function or reversibility of the problem. A first bout of constipation often resolves without therapy, but mild to moderate or recurrent episodes of constipation usually require some form of medical intervention.

At the time of resection, small intestinal biopsies are advised, as concurrent, underlying disease e. Vomiting in dogs can be caused by a severe GI illness, eating something rotten, a foreign body, or pancreatitis. A thorough diagnostic investigation is needed to eliminate other potential causes from the list of diagnostic differentials.

Gastritis in the Cheetah. Caution must be used to reduce the risk of perforation. Studies 12,13 have shown that dietary supplementation with short-chain fatty acids improves colonic smooth muscle contraction in both cats and dogs. Because iatrogenic hypothyroidism may be associated with constipation, measurement of basal serum thyroxine concentration is recommended in cats with recurrent constipation after treatment of hyperthyroidism.


Partial colectomy has fallen out of favor because differentiation between normal and abnormal tissue based on gross appearance at the time of surgery is impossible. Treatment of Bleeding Disorders. Feline Analgesia in Physical Examination Impaction and enlargement of the colon is the underlying finding in all cases of megacolon. For cats with abnormal narrowing of the pelvis, surgery can be performed to make the pelvic opening wider.

No, this will not help Cinnamon stop vomiting.

Feline idiopathic megacolon is a relatively common disease characterized by generalized colonic dysfunction. The most common cause of an obstruction is severe vomiting to the point where fellne dog has a hard time keeping anything down.

The histamine H 2 antagonists ranitidine Zantac, GlaxoSmithKline and mdgacolon Axid, Eli Lilly stimulate in vitro feline colonic smooth muscle contraction via inhibition of tissue acetylcholinesterase, but in vivo studies still need to be conducted to determine whether these medications should be considered a standard component of therapy for idiopathic megacolon.

There ,egacolon multiple causes of constipation and megacolon. In addition, fiber supplementation in late stages of megacolpn megacolon may exacerbate colonic distention and subsequent clinical signs; thus a low-residue diet may be more beneficial in affected patients.

Hexachlorophene containing soaps should be avoided in enemas because of potential neurotoxicity. Megscolon patient should be fed a low-residue diet until 12 hours before induction of general anesthesia, at which time food should be withheld.

High fiber diets should not be used in cats felinr chronic constipation or megacolon; instead all-meat diets are recommended. A colectomy, or removal of the colon is performed.

Bulk-forming laxatives are typically minimally digestible polysaccharides and celluloses, and constipated cats may respond to dietary supplementation with one of these products. Bisacodyl is a laxative that stimulates colonic propulsive motility. Vaccine for Malignant Melanoma.

A neurological examination should be performed to detect any neurological causes of constipation, including pelvic nerve trauma, spinal cord injury, or sacral spinal cord deformities of Manx cats. Therapeutics There are five components to medically managing the megacolon patient.


Usually, the cat will be started on an oral medication called ” cisapride ,” which is given to stimulate the movement of food through the digestive tract. Remove impacted feces 3.

Pathogenesis, diagnosis, and therapy of feline idiopathic megacolon.

Toxoplasma gondii in Thailand. Hyperosmotic laxatives stimulate colonic fluid secretion and propulsive motility. Sodium phosphate containing enemas e. History Cats are presented because of a client’s concern about reduced, absent or painful, elimination of hard stool in or outside of the litterbox.

New Diseases and Treatments. A baseline serum T4 should be checked in obstipated kittens suspected of being hypothyroid. The symptoms found in cats with constipation and megacolon depend upon the severity of the condition.

Feline Megacolon – WSAVA Congress – VIN

Histologic studies fail to show significant abnormalities in density or morphology of ganglia. Dilated megacolon is preceded by repeated episodes of recurrent constipation and obstipation. Surgery Cats with chronic obstipation or megacolon should be considered as candidates for colectomy. Balancing the Gut Flora. When To Use Medication.

The conclusion drawn by these workers was that the disorder involves abnormal intracellular activation of smooth muscle myofilaments. The cat may require several anesthesias as he receives enemas to remove the hardened fecal material.

Traditional Chinese Medical Diagnosis. Manual extraction of impacted feces is required in patients in which enemas and laxative therapy have not successfully facilitated defecation. Colonic prokinetic agents 1 As long as cellular dehydration is present, the need will exist to resorb water from renal and gastrointestinal systems.