Chronic hypertension classification

Chronic Hypertension Microchapters
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2017 ACC/AHA Hypertension Guidelines
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Assistant Editor-In-Chief: Yazan Daaboul, Serge Korjian, Usama Talib, BSc, MD [2]

Overview

In 2004, the Seventh Report of the Joint National Committee (JNC 7) classified blood pressure values into 4 categories: normal, prehypertension, stage I hypertension, and stage II hypertension. In 2007, the Task Force for the Management of Arterial Hypertension of the European Society of Hypertension (ESH) and the European Society of Cardiology (ESC) classified blood pressure into 7 categories. This classification remained unchanged in the 2013 ESH/ESC classification. The ESH/ESC classification excludes JNC 7’s pre-hypertension category, but includes 3 different grades of hypertension in contrast to JNC 7’s two-stage classification of hypertension.

Classification

JNC 8 update on JNC 7 Classification of Blood Pressure

JNC8(2014) proposes no changes in the blood pressure classification given in JNC7(2004). According to the Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure blood pressure values were classified as follows:

Blood Pressure Classification |

Systolic (mm Hg)

Diastolic (mm Hg)

Normal	< 120	and	< 80
Pre-Hypertension	120-139	or	80-89
Stage 1 Hypertension	140-159	or	90-99
Stage 2 Hypertension	>160	or	>100

ESH/ESC Classification of Blood Pressure

In Europe, a different classification of blood pressure was introduced in 2007 by The Task Force for the Management of Arterial Hypertension of the European Society of Hypertension (ESH) and of the European Society of Cardiology (ESC). According to the 2013 Guidelines for the Management of Arterial Hypertension, blood pressure values were classified as follows:

Blood Pressure Classification

Systolic (mm Hg)

Diastolic (mm Hg)

Optimal	< 120	and	< 80
Normal	120-129	and/or	80-84
High Normal	130-139	and/or	85-89
Grade 1 Hypertension	140-159	and/or	90-99
Grade 2 Hypertension	160-179	and/or	100-109
Grade 3 Hypertension	≥ 180	and/or	≥110
Isolated Systolic Hypertension	≥140	and	<90

2014 Evidence-Based Guidelines for the Management of High Blood Pressure in Adults (JNC 8) -- DO NOT EDIT

Comparison of Current Recommendations With JNC 7 Guidelines Topic JNC 7 2014 Hypertension Guideline (JNC8) Methodology Nonsystematic literature review by expert committee including a range of study designs Recommendations based on consensus Critical questions and review criteria defined by expert panel with input from methodology team Initial systematic review by methodologists restricted to RCT evidence Subsequent review of RCT evidence and recommendations by the panel according to a standardized protocol Definitions Defined hypertension and prehypertension Definitions of hypertension and prehypertension not addressed, but thresholds for pharmacologic treatment were defined Treatment goals Separate treatment goals defined for “uncomplicated” hypertension and for subsets with various comorbid conditions (diabetes and CKD) Similar treatment goals defined for all hypertensive populations except when evidence review supports different goals for a particular subpopulation Lifestyle recommendations Recommended lifestyle modifications based on literature review and expert opinion Lifestyle modifications recommended by endorsing the evidencebased Recommendations of the Lifestyle Work Group Drug therapy Recommended 5 classes to be considered as initial therapy but recommended thiazide-type diuretics as initial therapy for most patients without compelling indication for another class Specified particular antihypertensive medication classes for patients with compelling indications, ie, diabetes, CKD, heart failure, myocardial infarction, stroke, and high CVD risk Included a comprehensive table of oral antihypertensive drugs including names and usual dose ranges Recommended selection among 4 specific medication classes (ACEI or ARB, CCB or diuretics) and doses based on RCT evidence Recommended specific medication classes based on evidence review for racial, CKD, and diabetic subgroups Panel created a table of drugs and doses used in the outcome trials Scope of topics Addressed multiple issues (blood pressure measurement methods, patient evaluation components, secondary hypertension, adherence to regimens, resistant hypertension, and hypertension in special populations) based on literature review and expert opinion Evidence review of RCTs addressed a limited number of questions, those judged by the panel to be of highest priority. Pre-publication review Reviewed by the National High Blood Pressure Education Program Coordinating Committee, a coalition of 39 major professional, public, and voluntary organizations and 7 federal agencies Reviewed by experts including those affiliated with professional and public organizations and federal agencies; no official sponsorship by any organization should be inferred

Abbreviations:

ACEI, angiotensin-converting enzyme inhibitor; ARB, angiotensin receptor blocker; CCB, calcium channel blocker; CKD, chronic kidney disease; CVD, cardiovascular disease; JNC, Joint National Committee;

RCT, randomized controlled trial.

Adopted from 2014 Evidence-Based Guideline for the Management of High Blood Pressure in Adults. Report From the Panel Members Appointed to the Eighth Joint National Committee (JNC 8).