The South African Hypertension Society (SAHS) published a commentary in May to give clarity on this much debated issue. The ACC/AHA guideline redefined that threshold for hypertension as a blood pressure =130 systolic and/or diastolic =80mmHg on at least two occasions. The authors of the SASH commentary state that the new definition and targets are not relevant to low- and middle-income countries such as South Africa, and the threshold for hypertension remains at 140/90mmHg for all categories of hypertension.

Although the improvement in accuracy of BP measurement in clinical trials and practice is desirable, the lack of standardisation of measurement between trials complicates the recommendations on targets and definitions of hypertension.

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