Acute hemorrhagic gastroenteritis (AHDS) (also known as hemorrhagic gastroenteritis [HGE]), is an acute disorder of dogs characterized by vomiting and bloody diarrhea. AHDS can affect any breed, age, size, or gender of dog, but it is most common in small- and toy-breed dogs. The exact cause of AHDS remains unknown. An elevated hematocrit in combination with a low or normal total protein is an important clue that a dog may have AHDS. Intravenous fluid therapy with potassium and electrolyte supplementation provides the foundation of AHDS therapy. Dogs with AHDS may die, if left untreated.
Acute respiratory distress syndrome (ARDS) is a life-threatening complication of critical illness. These underlying critical illnesses may include sepsis, pancreatitis, pneumonia (either due to an infection or the inhalation of foreign materials), trauma, near-drowning, and other severe illnesses. In ARDS, massive inflammation and the release of various inflammatory chemicals leads to the leaking of capillaries within the lungs. Signs of ARDS include increased respiratory rate, blue discoloration to skin and mucous membranes due to poor oxygen delivery, and occasionally coughing. Treatment of ARDS is primarily focused on supportive care and addressing the underlying critical illness.
Addison's disease (the common name for hypoadrenocorticism) is caused by a decreased production of two hormones from the adrenal gland. These hormones are cortisol, a stress hormone, and aldosterone, a mineralocorticoid hormone that regulates the body's water balance through its effects on sodium and potassium.
Lipomas are benign tumors of fat seen in middle-aged to older animals. Sometimes these tumors grow in between muscle layers are called infiltrative lipomas. Lipomas are benign and do not typically behave aggressively. Liposarcomas are the malignant form of the disease. These tumors are usually diagnosed by a fine needle aspiration, though biopsy or advanced diagnostic imaging may be required before surgery. Surgery is the best course of action for pets with lipomas and fat-based tumors.
The adrenal glands are responsible for hormone production. Overproduction of these hormones typically manifests as Cushing’s disease (hyperadrenocorticism). Typically, these tumors are benign in nature and can be treated medically, though malignant tumors (e.g., carcinomas/adenocarcinomas) are possible. In these cases, surgical excision is generally required. The prognosis for patients with adrenal tumors is generally good if surgical removal is complete.
The adrenal medulla is responsible for producing hormones such as epinephrine and norepinephrine. Dysregulated replication of the chromaffin cells of the adrenal medulla lead to development of a pheochromocytoma. These tumors produce excess hormone that leads to episodes of hypertension and tachycardia. Early detection via abdominal ultrasound is imperative for surgical success. CT scan prior to surgery is recommended as these tumors have the potential for vascular invasion leading to post-operative complications. Staging is recommended given that approximately 40% of patients will have evidence of spread at time of diagnosis.
Afoxolaner is used to treat and control flea and tick infestations in dogs. Sometimes afoxolaner is used for the treatment of sarcoptic mange or demodectic mange. The tablet should always be given as directed by your veterinarian. The majority of dogs have very few side effects from afoxolaner, provided it is given according to label recommendations and at the prescribed interval. If you suspect an overdose or negative reaction to the medication, call your veterinary office immediately.
Aggression may be defined as any threat or harmful behavior directed toward another individual or group. Aggression in dogs commonly includes body language or threat displays such as a hard stare, growling, barking, snarling, lunging, snapping, and/or biting. There are many different categories or types of canine aggression including territorial, possessive, maternal/protective, pain-related, predatory, frustration, social conflict-related, sexual, disease-related, and fear- or anxiety-related aggression. The most common presentation of aggression is fear or anxiety motivated. The treatment of aggression will depend on the cause of aggression. Aggression should first be discussed with your veterinarian regarding the most appropriate treatment.
Territorial or protective aggression may be exhibited toward people or other animals that approach the pet's property. Generally, people and other animals that are unusual, less familiar to the dog, or most unlike the members of the household are the most likely targets of territorial aggression.