Hypertension
ICD-10 I10 · guideline questions traced from the recommendation down to the data it rests on.
Essential hypertension is one of the most-treated conditions in medicine, and the number that defines it has moved. The questions worth tracing here are less about whether to treat blood pressure than about where the thresholds and targets come from, and how much weight the data underneath them can bear.
Traces Back to the pathway →
Published · measurement rung
The 120 mmHg systolic target
The 2017 ACC/AHA guideline lowered the systolic threshold that defines high blood pressure and set an intensive target near 120 mmHg, leaning heavily on the SPRINT trial. But SPRINT measured blood pressure with automated, rested, averaged readings that run lower than the single manual cuff most clinics still use, so the guideline number and the clinic number are not on the same scale. This trace walks the recommendation down to that measurement and back, showing how a choice on the bottom rung shapes a number at the top.
Other hypertension questions will be traced here as each is worked and sourced: the diastolic target, the evidence behind treating stage 1 hypertension at lower cardiovascular risk, and how the intensive-target results of SPRINT are reconciled with the more equivocal ACCORD-BP finding.
Each trace is methodological commentary, not clinical advice. It is about what the numbers can and cannot support, not guidance for treating a patient. If you have a hypertension recommendation whose statistical basis you want traced, for a manuscript or your own appraisal, book a discovery call →.