- Section 1 Patients and their treatment
- Section 2 Background to medicine
- Section 3 Cell biology
- Section 4 Immunological mechanisms
- Section 5 Principles of clinical oncology
- Section 6 Old age medicine
- Section 7 Pain and palliative care
- Section 8 Infectious diseases
- Section 9 Sexually transmitted diseases
- Section 10 Environmental medicine, occupational medicine, and poisoning
- Section 11 Nutrition
- Section 12 Metabolic disorders
- Section 13 Endocrine disorders
- Section 14 Medical disorders in pregnancy
- Section 15 Gastroenterological disorders
- Section 16 Cardiovascular disorders
- 16.1 Structure and function
- 16.2 Clinical presentation of heart disease
- 16.3 Clinical investigation of cardiac disorders
- 16.4 Cardiac arrhythmias
- 16.5 Cardiac failure
- 16.6 Valvular heart disease
- 16.7 Diseases of heart muscle
- 16.8 Pericardial disease
- 16.9 Cardiac involvement in infectious disease
- 16.10 Tumours of the heart
- 16.11 Cardiac involvement in genetic disease
- 16.12 Congenital heart disease in the adult
- 16.13 Coronary heart disease
- 16.14 Diseases of the arteries
- 16.15 The pulmonary circulation
- 16.16 Venous thromboembolism
- 16.17 Hypertension
- 16.17.1 Essential hypertension: Definition, epidemiology, and pathophysiology
- 16.17.2 Essential hypertension: Diagnosis, assessment, and treatment
- 16.17.3 Secondary hypertension
- 16.17.4 Mendelian disorders causing hypertension
- 16.17.5 Hypertensive urgencies and emergencies
- 16.18 Chronic peripheral oedema and lymphoedema
- 16.19 Idiopathic oedema of women
- Section 17 Critical care medicine
- Section 18 Respiratory disorders
- Section 19 Rheumatological disorders
- Section 20 Disorders of the skeleton
- Section 21 Disorders of the kidney and urinary tract
- Section 22 Haematological disorders
- Section 23 Disorders of the skin
- Section 24 Neurological disorders
- Section 25 Disorders of the eye
- Section 26 Psychiatric and drug-related disorders
- Section 27 Forensic medicine
- Section 28 Sport and exercise medicine
- Section 29 Biochemistry in medicine
- Section 30 Acute medicine
(p. 3735) Hypertension
‘Essential hypertension’ is high blood pressure for which there is no clearly defined aetiology. From a practical perspective, it is best defined as that level of blood pressure at which treatment to lower blood pressure results in significant clinical benefit—a level which will vary from patient to patient depending on their absolute cardiovascular risk.
Historically, most guidelines define ‘hypertension’ as an office blood pressure greater than or equal to 140/90 mm Hg, but some recent recommendations prefer home or ambulatory blood pressure (blood pressure) averages. When using 24 h ambulatory blood pressure or home blood pressure averages to define hypertension, the diagnostic thresholds are lower than those used with office measurement, with a value of 135/85 mm Hg typically used for both daytime ambulatory blood pressure and home measurements.
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- Section 1 Patients and their treatment
- Section 2 Background to medicine
- Section 3 Cell biology
- Section 4 Immunological mechanisms
- Section 5 Principles of clinical oncology
- Section 6 Old age medicine
- Section 7 Pain and palliative care
- Section 8 Infectious diseases
- Section 9 Sexually transmitted diseases
- Section 10 Environmental medicine, occupational medicine, and poisoning
- Section 11 Nutrition
- Section 12 Metabolic disorders
- Section 13 Endocrine disorders
- Section 14 Medical disorders in pregnancy
- Section 15 Gastroenterological disorders
- Section 16 Cardiovascular disorders
- 16.1 Structure and function
- 16.2 Clinical presentation of heart disease
- 16.3 Clinical investigation of cardiac disorders
- 16.4 Cardiac arrhythmias
- 16.5 Cardiac failure
- 16.6 Valvular heart disease
- 16.7 Diseases of heart muscle
- 16.8 Pericardial disease
- 16.9 Cardiac involvement in infectious disease
- 16.10 Tumours of the heart
- 16.11 Cardiac involvement in genetic disease
- 16.12 Congenital heart disease in the adult
- 16.13 Coronary heart disease
- 16.14 Diseases of the arteries
- 16.15 The pulmonary circulation
- 16.16 Venous thromboembolism
- 16.17 Hypertension
- 16.17.1 Essential hypertension: Definition, epidemiology, and pathophysiology
- 16.17.2 Essential hypertension: Diagnosis, assessment, and treatment
- 16.17.3 Secondary hypertension
- 16.17.4 Mendelian disorders causing hypertension
- 16.17.5 Hypertensive urgencies and emergencies
- 16.18 Chronic peripheral oedema and lymphoedema
- 16.19 Idiopathic oedema of women
- Section 17 Critical care medicine
- Section 18 Respiratory disorders
- Section 19 Rheumatological disorders
- Section 20 Disorders of the skeleton
- Section 21 Disorders of the kidney and urinary tract
- Section 22 Haematological disorders
- Section 23 Disorders of the skin
- Section 24 Neurological disorders
- Section 25 Disorders of the eye
- Section 26 Psychiatric and drug-related disorders
- Section 27 Forensic medicine
- Section 28 Sport and exercise medicine
- Section 29 Biochemistry in medicine
- Section 30 Acute medicine