Cushing’s Syndrome, Cushing’s Disease (Cushing’s Disease) in Dogs
- Occurrence: rarer
- Location of illness: Abdomen/pelvis, General/Whole body
Cushing’s syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment., also known as Cushing’s disease, is a hormonal disorder in dogs caused by an overproduction of the hormoneHormones are chemical messengers produced by endocrine glands and released into the bloodstream to affect specific cells or organs in the body. They regulate numerous bodily functions, including growth, metabolism, and reproduction. cortisolCortisol is a steroid hormone produced in the adrenal cortex. It plays an important role in the body's stress response, as well as in the metabolism of proteins, lipids, and carbohydrates. Cortisol also helps regulate blood sugar levels and suppress the immune system. in the adrenal glands. This syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment. can lead to a variety of health problems if left untreated.
The most important facts at a glance
Cushing’s syndrome in dogs is a hormonal disorder caused by an excessive production of cortisolCortisol is a steroid hormone produced in the adrenal cortex. It plays an important role in the body's stress response, as well as in the metabolism of proteins, lipids, and carbohydrates. Cortisol also helps regulate blood sugar levels and suppress the immune system.. CortisolCortisol is a steroid hormone produced in the adrenal cortex. It plays an important role in the body's stress response, as well as in the metabolism of proteins, lipids, and carbohydrates. Cortisol also helps regulate blood sugar levels and suppress the immune system. is an important hormoneHormones are chemical messengers produced by endocrine glands and released into the bloodstream to affect specific cells or organs in the body. They regulate numerous bodily functions, including growth, metabolism, and reproduction. that regulates metabolicMetabolic refers to metabolism, i.e. the entirety of chemical processes that take place in a living organism to enable life processes. Metabolic disorders can cause a variety of Diseases in Dogs and cats. processes, the immune responseAn immune response is the immune system's reaction to foreign substances (antigens), such as microorganisms or proteins. It involves a series of processes aimed at recognizing, fighting, and eliminating these antigens., and stressStress refers to the state of an organism reacting to external stimuli or demands. In veterinary medicine, stress can have physical or psychological effects on animals, impacting their health and well-being. management. The most common cause is a benignBenign refers to a non-invasive, non-serious condition that is not life-threatening. In medicine, the term is often used to describe benign tumors that do not metastasize, meaning they do not form secondary tumors. tumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. in the pituitary glandThe pituitary gland, also known as the hypophysis, is a small gland located beneath the brain that produces hormones that control the functions of other endocrine glands. It plays a central role in the body's hormonal system., which increases the production of ACTH and thus stimulates the adrenal glands to produce more cortisolCortisol is a steroid hormone produced in the adrenal cortex. It plays an important role in the body's stress response, as well as in the metabolism of proteins, lipids, and carbohydrates. Cortisol also helps regulate blood sugar levels and suppress the immune system.. Another, less common cause is a tumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. in the adrenal glandThe adrenal gland is a glandular organ located above the kidneys in dogs and cats that produces hormones such as epinephrine, norepinephrine, and corticosteroids. These hormones are important for the stress response, metabolism, and electrolyte balance. itself. Long-term use of corticosteroidsCorticosteroids are a class of steroid hormones that occur naturally in the body and can also be produced synthetically. They have anti-inflammatory and immunosuppressive properties and are used in veterinary medicine to treat a variety of conditions. can also triggerA trigger is a stimulus that elicits a specific reaction or state. In veterinary medicine, this can refer to emotional responses, such as fear or aggression, or medical conditions, such as seizures in dogs and cats. the syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment.. Symptoms include increased thirst and appetite, increased urination, hair loss, muscle weakness, and skin changes. DiagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. requires a combination of clinical examination, blood tests such as the ACTH stimulation testThe ACTH stimulation test is a diagnostic procedure used to check the function of the adrenal cortex. It tests the adrenal glands' response to adrenocorticotropic hormone (ACTH) to diagnose conditions such as Cushing's disease or Addison's disease in dogs and cats., and imaging procedures. Treatment depends on the cause. For pituitary-dependent Cushing’s, trilostane is often used to inhibit cortisolCortisol is a steroid hormone produced in the adrenal cortex. It plays an important role in the body's stress response, as well as in the metabolism of proteins, lipids, and carbohydrates. Cortisol also helps regulate blood sugar levels and suppress the immune system. production, while surgical removal is considered for adrenal tumors. Regular follow-up is important to adjust therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. and monitor side effects. The prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. varies depending on the form of the disease and the dog’s general health, but can be significantly improved with appropriate treatment. Preventive measures are limited due to the unclear causes, but good health care and early detection can help maintain quality of life.
Causes
Cushing’s syndrome in dogs is an endocrine disorder characterized by an excessive production of cortisolCortisol is a steroid hormone produced in the adrenal cortex. It plays an important role in the body's stress response, as well as in the metabolism of proteins, lipids, and carbohydrates. Cortisol also helps regulate blood sugar levels and suppress the immune system., a steroid hormoneHormones are chemical messengers produced by endocrine glands and released into the bloodstream to affect specific cells or organs in the body. They regulate numerous bodily functions, including growth, metabolism, and reproduction.. CortisolCortisol is a steroid hormone produced in the adrenal cortex. It plays an important role in the body's stress response, as well as in the metabolism of proteins, lipids, and carbohydrates. Cortisol also helps regulate blood sugar levels and suppress the immune system. plays an important role in the regulation of metabolicMetabolic refers to metabolism, i.e. the entirety of chemical processes that take place in a living organism to enable life processes. Metabolic disorders can cause a variety of Diseases in Dogs and cats. processes, the immune responseAn immune response is the immune system's reaction to foreign substances (antigens), such as microorganisms or proteins. It involves a series of processes aimed at recognizing, fighting, and eliminating these antigens., and stressStress refers to the state of an organism reacting to external stimuli or demands. In veterinary medicine, stress can have physical or psychological effects on animals, impacting their health and well-being. management. It is produced in the adrenal glands, which are located above the kidneys.
The most common cause of Cushing’s syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment. in dogs is a benignBenign refers to a non-invasive, non-serious condition that is not life-threatening. In medicine, the term is often used to describe benign tumors that do not metastasize, meaning they do not form secondary tumors. tumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. in the pituitary glandThe pituitary gland, also known as the hypophysis, is a small gland located beneath the brain that produces hormones that control the functions of other endocrine glands. It plays a central role in the body's hormonal system. (hypophysis), which increases the production of adrenocorticotropicAdrenocorticotropic hormone (ACTH) is a hormone produced by the pituitary gland that stimulates the release of cortisol from the adrenal cortex. Cortisol is a vital hormone involved in regulating metabolism, immune function, and the stress response. hormoneHormones are chemical messengers produced by endocrine glands and released into the bloodstream to affect specific cells or organs in the body. They regulate numerous bodily functions, including growth, metabolism, and reproduction. (ACTH). This hormoneHormones are chemical messengers produced by endocrine glands and released into the bloodstream to affect specific cells or organs in the body. They regulate numerous bodily functions, including growth, metabolism, and reproduction. stimulates the adrenal glands to produce cortisolCortisol is a steroid hormone produced in the adrenal cortex. It plays an important role in the body's stress response, as well as in the metabolism of proteins, lipids, and carbohydrates. Cortisol also helps regulate blood sugar levels and suppress the immune system.. This form is called pituitary-dependent Cushing’s syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment. and accounts for about 80-85% of cases in dogs.
Another cause can be a tumor in the adrenal glandThe adrenal gland is a glandular organ located above the kidneys in dogs and cats that produces hormones such as epinephrine, norepinephrine, and corticosteroids. These hormones are important for the stress response, metabolism, and electrolyte balance. itself, which directly increases the production of cortisolCortisol is a steroid hormone produced in the adrenal cortex. It plays an important role in the body's stress response, as well as in the metabolism of proteins, lipids, and carbohydrates. Cortisol also helps regulate blood sugar levels and suppress the immune system.. This less common form is called adrenal-dependent Cushing’s syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment.. In rare cases, Cushing’s syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment. can also be caused by the long-term administration of corticosteroidsCorticosteroids are a class of steroid hormones that occur naturally in the body and can also be produced synthetically. They have anti-inflammatory and immunosuppressive properties and are used in veterinary medicine to treat a variety of conditions., which are used to treat other diseases.
The exact causes for the development of tumors in the pituitary glandThe pituitary gland, also known as the hypophysis, is a small gland located beneath the brain that produces hormones that control the functions of other endocrine glands. It plays a central role in the body's hormonal system. or adrenal glands are not fully understood. Genetic factors may play a role, as well as certain environmental factors that could increase the risk.
Symptoms
The symptoms of Cushing’s syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment. are diverse and can vary from dog to dog. One of the most common signs is increased water intake and corresponding increased urinary urgency. This can lead to more frequent trips to the toilet and occasionally accidents in the house.
Another common symptom is increased food intake, which often leads to weight gain and obesityObesity is the medical term for severe overweight, characterized by an excessive accumulation of fat in the body. It is often defined by a body condition score that is above the ideal range.. Dogs with Cushing’s syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment. tend to develop an enlarged abdominalThe term “abdominal” refers to anything that concerns the belly or the abdomen. It is an adjectival expression used to describe the location, symptoms, or conditions that occur in the abdominal area. region, which is due to a redistribution of fat and muscle loss.
Skin changes such as thinning skin, hair loss, and an increased susceptibility to skin infections are also frequently observed. Some dogs may experience darkening of the skin or changes in hair growth.
Other symptoms may include lethargy, muscle weakness, and a reduced ability to cope with stressStress refers to the state of an organism reacting to external stimuli or demands. In veterinary medicine, stress can have physical or psychological effects on animals, impacting their health and well-being.. In some cases, behavioral changes such as increased irritability or apathyApathy refers to a state of indifference and reduced interest or lack of emotional involvement in activities or events that would normally arouse interest. may also occur.
Diagnosis
The diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. of Cushing’s syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment. requires a combination of clinical examination, blood tests, and imaging procedures. First, the veterinarian will take a thorough historyThe medical history is the systematic collection of a patient's medical history through questioning. It includes information about previous illnesses, treatments, allergies, and lifestyle habits. and physically examine the dog to identify possible symptoms.
Blood tests are crucial to determine the cortisolCortisol is a steroid hormone produced in the adrenal cortex. It plays an important role in the body's stress response, as well as in the metabolism of proteins, lipids, and carbohydrates. Cortisol also helps regulate blood sugar levels and suppress the immune system. level in the dog’s blood. A commonly used test is the ACTH stimulation testThe ACTH stimulation test is a diagnostic procedure used to check the function of the adrenal cortex. It tests the adrenal glands' response to adrenocorticotropic hormone (ACTH) to diagnose conditions such as Cushing's disease or Addison's disease in dogs and cats., which measures the response of the adrenal glands to an injection of ACTH. Another test is the dexamethasone suppression test, which helps to distinguish between the different forms of Cushing’s syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment..
Imaging techniques such as ultrasoundUltrasound refers to sound waves that are above the hearing threshold of the human ear. In medicine, ultrasound is used for diagnostic imaging procedures to visualize internal organs, tissues, and blood flow. or MRI can be used to identify tumors in the pituitary glandThe pituitary gland, also known as the hypophysis, is a small gland located beneath the brain that produces hormones that control the functions of other endocrine glands. It plays a central role in the body's hormonal system. or adrenal glands. These examinations are particularly important to determine the exact cause of the disease and to plan appropriate treatment.
Therapy
Treatment for Cushing’s syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment. in dogs depends on the underlying cause. For the pituitary-dependent form, the drug trilostane is often used, which inhibits the production of cortisol in the adrenal glands. An alternative is mitotane, which destroys the adrenal cells that produce cortisolCortisol is a steroid hormone produced in the adrenal cortex. It plays an important role in the body's stress response, as well as in the metabolism of proteins, lipids, and carbohydrates. Cortisol also helps regulate blood sugar levels and suppress the immune system..
In the case of an adrenal tumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions., surgical removal of the affected tumor may be considered, provided the tumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. is operable and the dog’s general condition allows it. In cases where surgery is not possible, drug therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. can also be used.
If Cushing’s syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment. is caused by the long-term administration of corticosteroidsCorticosteroids are a class of steroid hormones that occur naturally in the body and can also be produced synthetically. They have anti-inflammatory and immunosuppressive properties and are used in veterinary medicine to treat a variety of conditions., the dose of these medications must be gradually reduced to restore the balance of hormoneHormones are chemical messengers produced by endocrine glands and released into the bloodstream to affect specific cells or organs in the body. They regulate numerous bodily functions, including growth, metabolism, and reproduction. levels.
Regular follow-up examinations are important to monitor the effectiveness of the treatment and to detect possible side effects. An adjustment of the therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. may be necessary based on the clinical signs and the results of the blood tests.
Prognosis and follow-up care
The prognosis for dogs with Cushing’s syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment. depends on various factors, including the form of the disease, the dog’s general health, and the response to treatment. In many dogs, quality of life can be significantly improved with appropriate therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions..
Dogs with pituitary-dependent Cushing’s syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment. who respond well to drug treatment can often lead a relatively normal life. However, it is important to continue treatment for life and have regular veterinary check-ups.
In dogs with adrenal tumors, the prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. depends on the possibility of surgically removing the tumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions.. If the tumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. can be completely removed and there are no metastasesA metastasis is a secondary tumor that originates from a primary, malignant tumor in another part of the body. Metastases indicate that cancer has spread in the body., the prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. is generally better.
The long-term prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. can be influenced by co-existing health problems or complications. Close cooperation with the veterinarian is crucial to develop the best treatment plan and maintain the dog’s quality of life.
Prevention
Since the exact causes of Cushing’s syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment. are not fully understood, there are no specific measures to prevent the disease. However, general health care and regular veterinary examinations can help to detect the disease early and start treatment in time.
If your dog needs corticosteroidsCorticosteroids are a class of steroid hormones that occur naturally in the body and can also be produced synthetically. They have anti-inflammatory and immunosuppressive properties and are used in veterinary medicine to treat a variety of conditions. in the long term, it is important to carefully monitor the dosage and adjust it only under the guidance of a veterinarian. Long-term, high doses of such medications can increase the risk of developing Cushing’s syndromeA syndrome is a group of symptoms that occur together and indicate a specific disease or condition. A syndrome can be caused by various factors and is often complex in its diagnosis and treatment..
A balanced diet, regular exercise, and a healthy body weight can also help to promote your dog’s general well-being and reduce the risk of hormonal imbalances.
Finally, it is important to pay attention to changes in your dog’s behavior or health and consult a veterinarian early if you suspect a health problem. Early intervention can help prevent complications and improve the long-term prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop..
When to visit the vet?
If the condition worsens / symptoms persist, consult a veterinarian.