Peritonita infecțioasă felină - tratament|Peritonita infecțioasă felină - ascita

Feline Infectious Peritonitis (FIP) - symptoms and treatment

by Alen Georgescu on Mar 18 2024
Cuprins

    Feline Infectious Peritonitis (FIP) is one of the most dreaded diseases encountered in veterinary practice. This disease affects both domestic and wild cats, but its clinical complexity and the variability of its manifestations make it a challenge for both veterinarians and pet owners.

    Viral diseases in cats - what is feline infectious peritonitis (FIP)

    When talking about a viral infection in cats, feline infectious peritonitis is probably the most feared type of disease, as the prognosis is often guarded, and the disease's progression often leads to death.

    FIP can affect the cat's digestive system, respiratory system, or other organs; some felines are carriers and can transmit the virus without developing signs of the disease themselves. The symptoms are often varied and non-specific, which further complicates diagnosis. Treatment is relatively limited, although progress in the field has now identified more effective options than the palliative treatment available until recently.

    Causes of feline infectious peritonitis

    The causes of feline infectious peritonitis go beyond a simple viral infection with a specific virus species. The main identified cause is infection with a cat-specific coronavirus, called Feline Coronavirus (FCoV), but not all infections with this virus lead to the clinical form of the disease. Most infected cats remain asymptomatic or develop only mild signs, without progressing to FIP. The transformation of the virus into its pathogenic, aggressive form, called FIPV (Feline Infectious Peritonitis Virus), and the actual development of the disease remain unclear aspects and a subject of study.

    Several factors can influence the development of FIP following FCoV infection:

    • Genetic background: some bloodlines appear to be more susceptible to developing FIP than others. Some breeds, such as the Abyssinian and Burmese, seem to be more susceptible to FIP than others;
    • Immunological status: the cat's immune response to FCoV infection plays an important role in the progression to FIP. It is believed that some cats develop an exaggerated or dysfunctional immune response to the virus, leading to the transformation of FCoV into the pathogenic forms of FIPV;
    • Stress and environment: environmental factors and stress can play an important role in the progression of FIP. Overcrowding, sudden environmental changes, or exposure to other infections can affect the cat's immune system, facilitating the transformation of the virus into its pathogenic form;
    • Re-infection and recurrence: there is a theory that re-infection with FCoV could play a role in the development of FIP, but the theory is still under debate.

    For your furry friend to have a strong immune system that helps them respond effectively to viral aggressions, nutrition is essential. Choose a veterinary diet appropriate for the cat's age and physiological state, which meets their nutritional needs with perfectly balanced, quality ingredients.

    Symptoms of feline infectious peritonitis

    Feline infectious peritonitis (FIP) can be a difficult condition to diagnose due to the variety of symptoms and the fact that they can mimic other cat diseases. It is important for the owner to observe any changes, even subtle ones, in the cat's behavior and general condition and to immediately consult a veterinarian for support and an informed opinion. Among the symptoms frequently associated with FIP are:

    • Weight loss: cats affected by FIP may experience significant weight loss, even with a normal or increased appetite;
    • Persistent fever: fever can be a common symptom of FIP and may appear in the initial stages, or throughout the disease;
    • Lethargy and apathy: cats affected by FIP are often characterized by a lack of energy and may be less interested in activities they usually enjoyed;
    • Jaundice: in severe cases, FIP can lead to jaundice, manifested by a yellow discoloration of the mucous membranes;
    • Gastrointestinal problems: gastrointestinal symptoms may include vomiting, diarrhea, and decreased appetite;
    • Abdominal swelling: sometimes, cats with FIP may develop ascites, an accumulation of fluid in the abdominal cavity, which causes swelling and tenderness of the abdomen;
    • Respiratory difficulties: in severe cases, FIP can also affect the lungs, causing respiratory difficulties particularly noticeable due to the cat's abdominal breathing;
    • Neurological disorders: in some cases, FIP can affect the central nervous system and may cause seizures, loss of balance, and some behavioral changes.

    If your cat gives you cause for concern due to changed behavior or changes related to feeding or stool, contact your veterinarian for an informed opinion; only then can you be sure you are doing what is best for her.

    FIP in cats: types of feline infectious peritonitis

    Feline infectious peritonitis can be divided into two clinical forms of the disease: the wet form and the dry form.

    Feline infectious peritonitis, wet form

    This form of FIP is characterized by the accumulation of fluid in the cat's abdominal or thoracic cavity. The fluid is often clear and can even be felt by palpating the abdomen. Abdominal swelling is evident, and the cat may become sensitive to touch. Non-specific symptoms of FIP can be complemented, in this case, by respiratory difficulties due to reduced lung space, vomiting, and diarrhea.

    Feline infectious peritonitis, dry form

    The dry form of FIP is characterized by inflammation and tissue changes in various organs of the cat's body, such as the kidneys, liver, spleen, or central nervous system. These changes can lead to the formation of granulomas in these organs.

    The clinical picture is completed, in this form of the disease, with jaundice, gastrointestinal disorders, and neurological disorders. Diagnosis of this form can be more difficult.

    Diagnosis of feline infectious peritonitis

    The diagnosis of feline infectious peritonitis is a complex and difficult process given the clinical variability of the disease and, often, cannot be achieved in a single stage.

    • The vet will start by requesting a detailed history, a complete history of symptoms, and will perform a thorough physical examination. Information regarding the presence of other animals in the household or potential stress factors is very important;
    • Blood tests can reveal inflammation, anemia, kidney failure, or other organ dysfunctions. Serological tests provide information about previous exposure to the virus, but are not sufficient to confirm the diagnosis because most cats come into contact with the virus without developing FIP;
    • Analysis of fluids accumulated in cavities - abdominal or thoracic - can be suggestive of FIP. Imaging investigations can reveal tissue changes that support the diagnosis.

    Treatment for feline infectious peritonitis

    Until recently, a diagnosis of feline infectious peritonitis was a death sentence. Palliative treatment consisted of administering corticosteroids to control inflammation and interferon to modulate the immune response. These were the only alternatives.

    Currently, there are several treatment protocols, one of the most frequently used being based on Remdesivir, an antiviral, and a nucleoside analog. The duration of treatment is 12 weeks, with the aim of preventing recurrence, but the protocol can be adjusted depending on the clinical form.

    The main obstacle to this treatment is its high cost. The success rate is 80-95% to date, but it is too early to discuss this, given that there are no statistics regarding potential recurrence. This treatment must also be accompanied by symptomatic treatment, intended to control the damage the virus has already caused in the body.

    If your cat has kidney damage, whether from the feline infectious peritonitis virus or other causes, it is essential that she receives all your support for recovery. Feeding a cat with kidney failure is extremely important for protecting the kidneys and prolonging life.

    Prevention of feline infectious peritonitis

    Preventing feline infectious peritonitis is not always possible, but there are measures you can take to reduce the risk, from controlling exposure to maintaining a healthy immune system.

    • Maintaining a hygienic environment, including regular disinfection of litter boxes, feeding areas, and resting places, reduces the risk of exposure to pathogens;
    • Limiting contact with stray cats can help prevent the spread of the virus among animals;
    • New feline household members should be tested before being introduced to the family. Regular testing can help with early identification of infections and implementation of control measures;
    • There is NO specific vaccine against FIP, but vaccination against other common cat diseases contributes to maintaining general health and strengthening the immune system;
    • Reducing stress is important, as is the isolation of positive cases and their adequate management.

    Collaboration with the veterinarian is essential to implement and maintain appropriate preventive measures to protect your cat. The veterinarian is also the best support in case of a suspected diagnosis, as early identification of the disease significantly increases the chances of survival.

    Photo source: Shutterstock, Shutterstock

    Sources:

    Back to blog

    Share

    Leave a comment

    Please note, comments need to be approved before they are published.