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Megaesophagus is a disease of the esophagus characterized by low motility and dilation. Most cases in adult dogs are idiopathic. It is the most common cause of regurgitation in dogs. Other causes of megaesophagus include myasthenia gravis, lead poisoning, and Addison's disease. [143]
C. upsaliensis is found worldwide, and is a common cause of campylobacteriosis in humans, as well as gastroenteritis in dogs and cats. [3] Human infections are primarily associated with raw or undercooked meat and contaminated water sources, however there is some zoonotic risk associated with the spread from dogs and cats. [4]
Functional constipation, also known as chronic idiopathic constipation (CIC), is defined by less than three bowel movements per week, hard stools, severe straining, the sensation of anorectal blockage, the feeling of incomplete evacuation, and the need for manual maneuvers during feces, without organic abnormalities.
Extra-intestinal masses such as other malignancies can also lead to constipation from external compression. [32] Constipation also has neurological causes, including anismus, descending perineum syndrome, desmosis and Hirschsprung's disease. [7] In infants, Hirschsprung's disease is the most common medical disorder associated with constipation.
Abnormal motility Studies have shown altered muscle contractility and tone, bowel compliance, and transit may contribute to many of the gastrointestinal symptoms of FGID which may include diarrhea, constipation, and vomiting. [20] Visceral hypersensitivity In FGID there is poor association of pain with GI motility in many functional GI disorders.
IBD also occurs in dogs and is thought to arise from a combination of host genetics, intestinal microenvironment, environmental components and the immune system. There is an ongoing discussion, however, that the term "chronic enteropathy" might be better to use than "inflammatory bowel disease" in dogs because it differs from IBD in humans in ...
Carnivore protoparvovirus 1 is a species of parvovirus that infects carnivorans.It causes a highly contagious disease in both dogs and cats separately. The disease is generally divided into two major genogroups: FPV containing the classical feline panleukopenia virus (FPLV), and CPV-2 containing the canine parvovirus type 2 (CPV-2) which appeared in the 1970s.
Gastric dilatation volvulus is multifactorial without any one cause being identified, but in all cases the immediate prerequisite is a dysfunction of the sphincter between the esophagus and stomach and an obstruction of outflow through the pylorus. [6] [1] Hypergastrinaemia has been hypothesised as a cause of GDV.