Systemic Hypertension

TL;DR. Systemic hypertension is a sustained, dangerous elevation in blood pressure that usually stems from an underlying illness like kidney disease, and requires prompt veterinary diagnosis to prevent permanent damage to vital

Systemic hypertension primarily damages four critical target organs: the eyes, kidneys, brain, and heart.

Hva er det?

Systemic arterial hypertension (SHT) is the medical term for a sustained, chronic elevation in systemic arterial blood pressure. Just like in humans, a pet's blood pressure is determined by the force of blood pumping against the walls of the arteries. When this pressure remains consistently too high, it causes progressive damage to the blood vessels and the vital organs they supply. In veterinary medicine, hypertension is defined by a chronic systolic blood pressure reading greater than 160 mm H

"Systemic arterial hypertension (SHT) is defined by chronic systolic increase (>160 mm Hg) and/or chronic diastolic increase (>100 mm Hg) of the systemic arterial pressure. In the animal, SHT is most often secondary to another disorder (mainly chronic renal failure and endocrine diseases such as feline hyperthyroidism)."

Årsaker og risikofaktorer

Because primary (or "essential") hypertension is exceedingly rare in veterinary patients, identifying high blood pressure always prompts a search for an underlying trigger. The most common causes and risk factors include: * Chronic Kidney Disease (CKD): The kidneys play a central role in regulating blood pressure by managing fluid balance and secreting hormones like renin. When the kidneys are damaged, this regulatory system fails, leading to fluid retention and vessel constriction. This c

Tegn

• Chronic Kidney Disease (CKD): The kidneys play a central role in regulating blood pressure by managing fluid balance and secreting hormones like renin. When the kidneys are damaged, this regulatory system fails, leading to fluid retention and vessel constriction. This creates a dangerous feedback loop: kidney disease causes high blood pressure, and the high blood pressure further accelerates kidney damage.
• Endocrine Disorders:
• Hyperthyroidism: Extremely common in older cats, an overactive thyroid gland increases the body's metabolic rate and heart rate, driving up blood pressure.
• Hyperadrenocorticism (Cushing's Disease): More common in dogs, this condition causes an overproduction of cortisol, which increases vascular sensitivity to compounds that constrict blood vessels.
• Diabetes Mellitus: Chronic hormonal and metabolic changes associated with diabetes can damage blood vessels over time.
• Age: As pets age, their blood vessels naturally lose elasticity, and the prevalence of underlying kidney and endocrine diseases rises sharply.

Når oppsøke veterinær

If your pet has been diagnosed with kidney disease, hyperthyroidism, or Cushing's disease, you should proactively discuss blood pressure monitoring with your veterinarian. You must seek immediate, emergency veterinary care if you observe any of the following red-flag symptoms: * Sudden loss of vision (bumping into furniture, acting disoriented) * **Pupils that remain widely dilated in brig

Diagnostikk

Diagnosing hypertension requires a careful, systematic approach. Because stress and anxiety can cause a temporary spike in blood pressure-a phenomenon known as the "white coat effect"-veterinarians must take precautions to ensure readings are accurate. Your vet will typically measure blood pressure in a quiet room, allowing your pet to acclimate for 5 to 10 minutes before taking readings. They wil

Behandling

Treating systemic hypertension involves a dual approach: rapidly lowering the blood pressure to a safe range to prevent further target organ damage, and identifying and managing the underlying disease. ### Medical Therapy Veterinarians rely on several classes of cardiovascular medications to manage hypertension. These drugs work by dilating blood vessels, reducing blood volume, or blocking the hor

Forebygging og hverdag

Because systemic hypertension is almost always secondary to other chronic diseases, it cannot be directly prevented. Instead, prevention focuses on early detection and management of the risk factors. Routine veterinary wellness exams, including annual or bi-annual blood work and urinalysis for senior pets (typically those over 7 years of age), are

Kilder

Veterinary internal medicine references for this condition.

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