Kidney Failure in Dogs
Causes of Kidney Failure
Some of the more serious causes of kidney failure include:
Hereditary and Congenital Abnormalities
These types of kidney disease are very frustrating to try to control or repair. Most dogs with abnormally constructed kidneys will develop kidney failure and do not live anywhere near a normal life span.
A few hereditary conditions that lead to kidney failure include:
Infections of the urinary tract of dogs are, unfortunately, very common. Generally arising from gradual spread of external bacterial organisms near the external urinary orifices, the bacteria multiply and invade the urethra, then into the bladder (causing what is termed cystitis), and occasionally further retrograde up the ureters and eventually into the kidneys.
Another less common means of kidney infection arises from a blood-borne dispersion of bacteria from a remote area such as an abscess or skin infection. Leptospirosis bacteria, for example, can have a severe effect on canine kidneys.
Another severe bacterial infection (Borrelia burgdorferi) may be caused by the bite of a tick. This infection causes Lyme Disease, which damages the kindey's ability to filter body waste products and transport of those waste products into the urine. Even after eliminating the bacteria with antibiotic therapy there may remain permanent structural damage to vital renal tissues -- and kidney failure ensues.
Systemic fungal infections such as Blastomycosis, Coccidioidomycosis (Valley Fever), and Histoplasmosis can attack nearly any tissue or organ in the body, including the kidneys. Most systemic fungal diseases are geographically oriented.
Trauma to Kidney
Direct trauma to the kidneys can result in kidney failure. Although rare, dogs that are run over by vehicles can suffer permanent and irreparable kidney trauma. Also, sudden physical shock to the kidney tissues from being struck by vehicles, baseball bats, kicking, or falls from a height, etc. can result in suffusive bleeding into the kidney tissue and permanently impair renal function.
Blockage of Urine Flow
The most notable condition seen in dogs from blockage of urine flow from the kidneys involves kidney stones or bladder stones or urethral obstructions. The obstructions caused by these mineral concretions (usually called struvite uroliths) can increase back pressure on the affected kidney, which permanently damages kidney function and causes what is termed hydronephrosis -- a kidney swollen under pressure with backed up urine.
FUS (Feline Urological Syndrome) also sometimes called FLUTD (Feline Lower Urinary Tract Disease) has as one of its presenting emergencies a situation where mineral deposits obstruct the male dog's penis. The bladder eventually dilates maximally and back pressure into the kidneys can cause death or permanent kidney damage if relief isn't provided expediciously.
Dogs with bladderstones often obstruct when a stone passes from the bladder but cannot be voided past the os penis -- the bone present in the male canine's penis. There is an inherent lack of room for the urethra to dilate in the area of the os penis and small bladder stones often dam up the urine flow at this site. Surgical intervention is often required in these emergency urinary tract blockage cases.
Tumors, cysts, abscesses and scar tissue, if present in critical areas of the urinary tract, can create obstructive situations where the urine flow from a kidney is compromised. This can result in damage to delicate kidney tissue structures, which is often permanent. If enough tissue is destroyed or its function impaired, kidney failure will occur.
The bone inside the penis of canine animals
The amount of pressure required to cause osmosis to stop
The term for the hip and related area
A medical condition in which the kidney becomes inflamed
The inside part or region of something
The dilation of the pelvis due to obstruction of urine
An increase in the number of bad white blood cells
A medical condition involving excessive thirst
The failure of the kidneys to perform their proper functions
A condition in which waste builds up in the bloodstream
The tubular shaft found between the kidneys and the bladder
A tube found between the bladder and the outside of the body; used to assist in urination.
A type of nervous system disease in which the patient is unable to regain control over certain muscles, usually those in the neck and jaw
Something that is related to the whole body and not just one particular part or organ
Glucose in the urine of an animal
Found underneath the dermis
A medical condition in which the glomeruli become inflamed
The amount of pressure applied by the blood on the arteries.
Any female animal that has given birth.
A medical condition in which the body has lost fluid or water in excessive amounts
The smaller veins or arteries that extend out from larger arteries.
When a certain organ or vital tissue fails to properly or fully develop.
Term used to imply that a situation or condition is more severe than usual; also used to refer to a disease having run a short course or come on suddenly.
Any medication that is designed to aid in relieving pain without being a sedative.
Moving downward or toward the end
A procedure used to get waste out of the blood when the kidneys are unable to function
To carry something away
Inducing death on an animal or putting them to sleep
A localized infection, usually a lesion filled with pus. Can be large or small in size.
A condition in which growth and development are not up to normal standards
A passage in the body with walls
To make something wider
The furthest distance from the middle or the top of a body
A group or clumps of capillaries
Share this page
60% (114 votes)
14% (27 votes)
8% (15 votes)
6% (12 votes)
N/A (I do not use tick preventives)
12% (23 votes)
Total votes: 191