High blood pressure: An obscuring misnomer?

Area of Science:

• Cardiovascular Science
• Hypertension Research
• Hemodynamics

Background:

• High blood pressure (hypertension) is a significant risk factor for cardiovascular complications.
• While hypertension and its complications are linked, the direct causal role of blood pressure (BP) requires further evidence.
• Hemodynamic factors like blood flow may also contribute to cardiovascular adverse events in hypertension.

Purpose of the Study:

• To analyze existing evidence comparing flow- and pressure-related phenomena in hypertension.
• To determine whether flow or pressure is the dominant mediator of hypertensive complications.
• To identify the optimal therapeutic target for managing hypertension-related adverse events.

Main Methods:

• Review and analysis of current scientific literature.
• Comparative assessment of pressure-based versus flow-based hemodynamic factors.
• Evaluation of evidence supporting each factor's role in mediating hypertensive complications.

Main Results:

• Blood pressure is a known risk factor, but its direct causal link to complications needs more substantiation.
• Blood flow and its variations are potential, yet under-recognized, contributors to cardiovascular events in hypertension.
• The perfect correlation between pressure and flow complicates isolating the primary mediator.

Conclusions:

• Flow-based factors, rather than pressure alone, may be the dominant mediators of common hypertensive complications.
• Rethinking hypertension pathophysiology with a focus on flow could significantly alter therapeutic strategies.
• Targeting blood flow may offer a more effective approach to preventing cardiovascular adverse events in hypertensive patients.