An abnormal, low resistance connection between an artery and a vein called an arteriovenous fistula. If large enough, the fistula can cause a significant portion of the total cardiac output going to the capillary bed, so that it, so that the tissue little or no oxygen. The heart in turn tried to compensate for the lack of oxygen by pumping blood out of the body at a faster rate, which can cause congestive heart failure what "high output".
Depends on the location of the arterio venous fistula; registered sites include the head, neck, ear, tongue, limbs, flank, spinal cord, cerebral cortex (part of the brain), lung, liver, vena cava (large vein lead back to the heart) and gastro-intestinal tract.
An arteriovenous fistula symptoms ultimately depends of the size and location of the fistula. Usually there is a warm, not painful at the site of the fistula. If the lesion on a link is, the cat may display:
Where you can touch the limb swelling, and an impression of a fingertip remains in the skin (pitting edema) LamenessUlcerationScabbingGangrene (tissue dies and round green)Signs of congestive heart failure, which often is associated with this type of fistula, include:
CoughingDifficulty increased heart rate (tachypnea) exercise intolerance breathing (Dyspnea)If the arteriovenous fistula of organ failure, your cat may display:
Swelling of the abdomen (liver)-Anf?lle (brain) weakness or paralysis (spinal cord)Cats are rarely born with arteriovenous fistulae. Typically, they acquire the fistula caused by traumatic damage to blood vessels, surgery complications, tumor(s) or problems associated with drawing blood or injections in the blood vessels (E.g., barbiturates)
You need a comprehensive history of your cat health, including the beginning and the nature of the symptoms, the veterinarian give. He or she leads a full physical examination as well as a biochemistry profile, urinalysis, complete blood count and electrolyte Panel, to identify complications associated with an arterio-venous fistula. Biochemical abnormalities can suggest such as liver, kidney or other organ dysfunction.
Arterio venous fistulas the cat blood flow significantly affect a, thorax can show X-ray enlargement of the heart and signs of excessive traffic to the lungs. In addition, a Doppler ultrasound, high velocity, turbulent flow within the lesion can show.
To find the arteriovenous fistula, your veterinarian can employ one echo kardiogramms on the cat. And to the lesion, outline, which may be required for diagnosis and selective angiography is highly desirable for preoperative evaluation, which can vet
A change in the way that tissue is built; a wound
The term for a rapid heart beat
A thorough examination of the properties of urine; to determine the presence or absence of disease
Stomach and intestines with the stomach and intestines
The collection of fluid in the tissues
Something, something else, something which usually larger is attached to. for example, a leg or an arm.
A large blood vessel carrying blood from the heart.
Hard to breathe; Breathing takes great pains
The process of removing all or part of a body part; Usually refers to an extremity (arm or leg) and is carried out for medical reasons.
ليست هناك تعليقات:
إرسال تعليق