Hypertension: Symptoms, Causes & Treatment

Hypertension (high blood pressure) is a common chronic condition affecting millions worldwide, including Jordan. When blood pressure consistently reads ≥140/90 mmHg, a person is diagnosed with hypertension. This occurs when the force of blood against artery walls is persistently elevated, forcing the heart to work harder to pump blood throughout the body.

Hypertension is called the "silent killer" because it often produces no obvious symptoms in early stages, yet its effects on the body are continuous and serious. Over time, elevated pressure damages blood vessels, the heart, kidneys, and brain. Approximately 30% of adults worldwide have hypertension, and Jordanian studies show high prevalence rates, especially among older populations and those with excess weight.

Most hypertension cases are primary (without an obvious underlying cause), though it can result from other diseases. Management requires a comprehensive approach combining lifestyle modifications and prescribed medications. Early detection and treatment adherence significantly reduce the risk of serious complications.

Most people with hypertension experience no symptoms, especially in early stages, making regular screening crucial. However, when blood pressure is severely elevated (>180/120 mmHg), acute symptoms requiring immediate medical attention may appear. Some individuals may experience mild symptoms even with moderate pressure elevation, particularly if onset is sudden.

• Headache: Especially at the back of the head with pulsating sensation.
• Dizziness and Vertigo: Particularly when standing up quickly.
• Shortness of Breath: Difficulty breathing, especially during physical activity.
• Fatigue and Severe Exhaustion: Feeling drained despite rest.
• Chest Pain: Pressure or discomfort in the chest area.
• Vision Problems or Blurred Vision: Especially with sudden pressure spikes.
• Nosebleed: May occur with very elevated pressure.
• Rapid or Irregular Heartbeat: Sensation of heart palpitations.
• Facial Flushing and Heat Sensation: May accompany sudden pressure elevation.
• Neck or Shoulder Pain: Particularly in severe cases.
• Anxiety and Nervousness: Intense stress and restlessness.
• Insomnia and Sleep Disorders: Difficulty falling or staying asleep.

• Essential (Primary) Hypertension (90% of cases): No single identifiable cause; develops gradually due to a combination of genetic, environmental, and behavioral factors.
• Kidney Disease: Affects regulation of fluids and electrolytes, raising blood pressure.
• Thyroid and Adrenal Disorders: Hormonal imbalances increase blood pressure.
• Arterial Narrowing (Atherosclerosis): Buildup of fats and cholesterol in vessel walls reduces blood flow and increases pressure.
• Obesity and Overweight: Increases strain on the heart and blood vessels, affecting pressure regulation.
• Chronic Psychological Stress: Elevates hormones that constrict blood vessels and raise pressure.
• Excessive Dietary Salt and Sodium: Increases body fluid retention, raising pressure.
• Physical Inactivity: Weakens heart and vessel muscles, reducing pressure regulation efficiency.

• Age: Risk increases after 60 years; higher in men before 60 and women after menopause.
• Family History: First-degree relatives (parents, siblings) with hypertension significantly increase risk.
• Obesity and Overweight: Each 10 kg weight gain may raise blood pressure by 2-3 mmHg.
• Diabetes: Diabetic patients are more prone to hypertension due to blood vessel damage.
• Smoking and Alcohol: Damage blood vessels, increase heart rate and blood pressure.
• Excess Dietary Salt: Consuming more than 5g daily raises risk, especially in sodium-sensitive individuals.
• Physical Inactivity: Sedentary lifestyle weakens the heart and blood vessels.
• Chronic Stress: Long-term psychological stress affects blood pressure regulation.
• Sleep Disorders: Insufficient sleep affects hormones regulating blood pressure.
• Certain Medications: NSAIDs, oral contraceptives, and decongestants may elevate blood pressure.

Hypertension diagnosis is made through proper blood pressure measurement following specific guidelines. A single reading is insufficient; multiple readings on different days are needed to confirm diagnosis. After confirmation, doctors may order additional tests to assess organ damage and screen for underlying conditions.

• Blood Pressure Measurement: Using a blood pressure monitor (sphygmomanometer), recording two values: systolic (top, when heart contracts) and diastolic (bottom, when heart relaxes). Normal: <120/80 mmHg. Hypertension: ≥140/90 mmHg. Best measured in morning before caffeine/smoking, after 5 minutes sitting.
• Home Blood Pressure Monitoring: Using approved home devices to record daily readings for diagnosis confirmation and medication effectiveness assessment.
• 24-Hour Ambulatory BP Monitoring: Portable device measuring pressure every 15-30 minutes for 24 hours to evaluate natural pressure fluctuations.
• Blood Tests: Including cholesterol, glucose, and kidney function (creatinine, urea) to assess potential organ damage and other risk factors.
• Urinalysis: To check for protein or signs of kidney damage.
• Electrocardiogram (ECG): To evaluate hypertension effects on the heart and detect structural changes.
• Echocardiogram: Detailed ultrasound examination of heart structure and function.
• Renal Ultrasound: To verify kidney size and rule out underlying kidney disease.

Medications

• ACE Inhibitors: (e.g., lisinopril, enalapril) Dilate blood vessels and reduce angiotensin-converting enzyme. Effective, safe, protective for kidneys and heart.
• Angiotensin Receptor Blockers (ARBs): (e.g., losartan, valsartan) Work similarly to ACE inhibitors with fewer side effects for some patients.
• Beta Blockers: (e.g., metoprolol, atenolol) Reduce heart rate and force of contraction. Beneficial for patients with other cardiac conditions.
• Calcium Channel Blockers: (e.g., amlodipine, diltiazem) Dilate blood vessels and reduce heart contractions. Safe with few side effects.
• Diuretics: (e.g., hydrochlorothiazide, furosemide) Reduce body fluid volume by increasing salt and water excretion. Useful for patients with fluid retention.
• Renin Inhibitors: (e.g., aliskiren) Block angiotensin II formation. Usually combined with other drugs.
• Combination Therapy: Doctors often prescribe two or more drugs for better control, especially in advanced cases.

Procedures and Interventions

• Vagus Nerve Stimulation: Relatively new procedure with promising results for resistant hypertension.
• Diagnostic and Therapeutic Catheterization: Used for renal artery stenosis or coronary interventions if needed.
• Angioplasty: Rare cases of renal artery narrowing may require balloon dilation.

Lifestyle Modifications

• DASH Diet: Vegetables, fruits, whole grains, and lean proteins. Reduce salt to <5g daily. Can lower BP by 11 mmHg.
• Weight Loss: Each 1 kg lost may reduce BP by 1 mmHg. Achieving healthy weight is crucial.
• Regular Exercise: 150 minutes weekly of moderate aerobic activity (brisk walking, swimming) reduces BP by 5-7 mmHg.
• Smoking Cessation: Smoking elevates BP and increases stroke/heart attack risk. Immediate cessation is necessary.
• Limit Alcohol: Maximum one drink daily for women, two for men.
• Stress Management: Deep breathing, relaxation, yoga, meditation can lower BP by 5 mmHg.
• Adequate Sleep: 7-9 hours nightly. Insomnia increases BP.
• Reduce Caffeine: Moderate coffee, tea, and carbonated drinks.
• Increase Potassium: Bananas, avocados, spinach help balance fluids and lower BP.
• Regular Monitoring: Check BP regularly and see doctor every 3-6 months for control assessment.

• Stroke: Elevated pressure damages cerebral blood vessels, causing blockage or hemorrhage. Can result in paralysis, speech loss, or death.
• Heart Attack: High pressure strains the heart and narrows coronary arteries, reducing oxygen to heart muscle and causing infarction.
• Heart Failure: Continuous pressure weakens the heart muscle over time, reducing its pumping efficiency and causing fluid accumulation in lungs and extremities.
• Chronic Kidney Disease: Elevated pressure damages microscopic kidney vessels (nephrons), reducing blood filtration efficiency. May progress to kidney failure requiring dialysis.
• Vision Loss and Blindness (Hypertensive Retinopathy): High pressure damages small blood vessels in the retina, causing vision impairment or permanent blindness.
• Pregnancy Complications: Pregnant women with hypertension may develop preeclampsia, threatening mother and fetus survival.
• Vascular Dementia: Chronic high pressure affects cerebral blood flow, potentially causing memory loss and cognitive decline.
• Peripheral Neuropathy: Chronic pressure-induced nerve damage in peripheral nerves causes pain and weakness in extremities.

• Follow a Healthy Diet: Eat vegetables, fruits, whole grains with low salt; avoid processed foods and saturated fats.
• Maintain Healthy Weight: Calculate BMI and work toward ideal weight. Weight loss significantly lowers BP.
• Exercise Regularly: Brisk walking or swimming 150 minutes weekly maintains cardiovascular health.
• Do Not Smoke: Smoking immediately raises BP and damages blood vessels. Cessation and avoiding secondhand smoke are essential.
• Limit Alcohol: Moderation protects heart, liver, and regulates blood pressure.
• Manage Stress: Practice relaxation techniques, yoga, meditation, and reduce stressful activities.
• Get Adequate Sleep: 7-9 hours nightly of quality sleep regulates BP and hormones.
• Regular Health Screenings: Especially for high-risk individuals (family history, obesity, diabetes). Early detection prevents complications.
• Reduce Dietary Salt: Use salt substitutes and avoid pickles, canned foods, fast food.
• Eat Potassium and Calcium-Rich Foods: These minerals help naturally regulate blood pressure.