Diagnosis and Treatment of Hypertension

Diagnostic Criteria

The American College of Physicians recommends diagnosing hypertension when blood pressure measurements average ≥140/90 mmHg on multiple occasions, confirmed through out-of-office monitoring before initiating treatment, particularly for readings between 140-159/90-99 mmHg 1, 2
The British Medical Journal suggests using a properly maintained, calibrated, and validated device with appropriate cuff size for arm circumference 3
The British Medical Journal recommends measuring seated blood pressure with arm supported at heart level, patient relaxed, avoiding talking during measurement 3
The British Medical Journal advises recording the mean of at least 2 readings per visit; more recordings needed if marked differences exist 3
The British Medical Journal states that standing blood pressure should be measured in elderly or diabetic patients to exclude orthostatic hypotension 3, 4

The European Society of Cardiology recommends confirming diagnosis using ambulatory blood pressure monitoring (ABPM) or home blood pressure monitoring (HBPM) before starting treatment for blood pressure 140-159/90-99 mmHg 2
The International Society of Hypertension defines hypertension as daytime average ≥135/85 mmHg using ABPM 5
The American Heart Association recommends calculating 10-year cardiovascular risk using ASCVD calculator (US) or SCORE (Europe) 2

The American College of Cardiology recommends initiating lifestyle modifications alone for stage 1 hypertension (140-159/90-99 mmHg) with 10-year cardiovascular risk <10% and no target organ damage or diabetes 2
The European Society of Cardiology recommends starting both lifestyle modifications and pharmacological therapy simultaneously for higher risk patients or stage 2 hypertension (≥160/100 mmHg) 2

The American College of Physicians recommends the following four drug classes as first-line therapy: thiazide or thiazide-like diuretics, ACE inhibitors, angiotensin receptor blockers (ARBs), and calcium channel blockers 2
The International Society of Hypertension prefers ACE inhibitors or ARBs as initial agents for patients with diabetes or chronic kidney disease 2
The American Heart Association recommends initiating with calcium channel blocker or thiazide diuretic for black patients 5
The European Society of Cardiology indicates β-blockers for patients with history of myocardial infarction, heart failure, or angina 5

The American College of Physicians recommends target blood pressure <130/80 mmHg for adults <65 years and patients with diabetes, chronic kidney disease, or established CVD 2
The British Medical Journal suggests minimum acceptable control (audit standard): <150/90 mmHg 4

The American College of Cardiology recommends monitoring electrolytes and renal function 2-4 weeks after initiating ACE inhibitors, ARBs, or diuretics, then regularly thereafter 2
The European Society of Cardiology advises regular blood pressure monitoring with treatment adjustment as needed to achieve target 2
The International Society of Hypertension recommends considering ABPM for unusual variability, suspected white coat hypertension, resistant hypertension, or nocturnal hypertension 3

The European Society of Cardiology recommends confirming hypertension with multiple blood pressure measurements taken on at least 2-3 separate office visits before initiating pharmacological therapy, unless the patient has severely elevated blood pressure (≥160/100 mmHg) or hypertensive emergency 6
For patients with blood pressure ≥160/100 mmHg, immediate drug treatment should be started after confirming the elevated reading with at least 2-3 additional measurements during the same visit using a validated device 6, 7
The 2024 ESC guidelines recommend prompt initiation of both lifestyle and pharmacological therapy simultaneously for confirmed hypertension ≥140/90 mmHg, with even greater urgency at ≥160/100 mmHg 6, 8

The American Heart Association and European Society of Cardiology strongly recommend using out-of-office monitoring (ABPM or HBPM) to confirm the diagnosis before starting treatment in patients with stage 1 hypertension (140-159/90-99 mmHg) 6, 9
The average of all home blood pressure readings over 3-7 days should guide treatment decisions 10
Ambulatory Blood Pressure Monitoring (ABPM) is the preferred method for confirming diagnosis when available, especially for borderline cases 6, 11

The 2024 ESC guidelines recommend achieving blood pressure control within 3 months of diagnosis 6, 8
After initiating therapy, follow-up monthly until blood pressure is controlled 9
The American College of Cardiology recommends using tools like the ASCVD calculator for cardiovascular risk stratification to guide treatment decisions in patients with elevated blood pressure (130-139/80-89 mmHg) 9, 7

The European Society of Cardiology recommends lifestyle modifications as the initial approach for patients with Grade 1 hypertension and low-to-moderate cardiovascular risk, with pharmacological therapy delayed for several weeks to months while monitoring response 12, 13, 14
Lifestyle interventions should be implemented first in patients with Grade 1 hypertension at low-to-moderate cardiovascular risk, according to the European Heart Journal 14, 13

The 2024 ESC guidelines state that for patients with elevated BP who are not at high cardiovascular risk, lifestyle measures with close BP monitoring should be the initial recommendation, as per the European Society of Cardiology 12, 15
Immediate antihypertensive medication is reserved for Grade 2 hypertension (≥160/100 mmHg) or Grade 1 hypertension with high/very high cardiovascular risk, as recommended by the European Heart Journal 14, 13

Restrict dietary sodium to approximately 2 g/day (equivalent to 5 g salt/day or one teaspoon), as recommended by the European Society of Cardiology 12, 15
Prescribe at least 150 minutes/week of moderate-intensity aerobic exercise (brisk walking, jogging, cycling, swimming), according to the European Heart Journal 12, 15
Increase potassium intake by 0.5-1.0 g/day through dietary sources (bananas, spinach, avocado) or potassium-enriched salt substitutes (75% sodium chloride/25% potassium chloride), as recommended by the European Society of Cardiology 12, 15
Target a sodium-to-potassium ratio of 1.5-2.0 for optimal BP reduction, according to the European Heart Journal 12

Provide specific, actionable instructions, such as reducing salt to <5 g/day by avoiding processed foods, not adding salt at table, and reading food labels, as recommended by the European Society of Cardiology 12, 13
Begin 30 minutes of brisk walking 5 days/week, gradually increasing intensity, according to the European Heart Journal 12, 15
Recheck BP in 4-8 weeks to assess response to lifestyle modifications, as recommended by the European Society of Cardiology 14, 13
If BP remains ≥140/90 mmHg after 3 months of sustained lifestyle changes, initiate pharmacotherapy, according to the American Heart Association and the European Society of Cardiology 16, 17, 14