[Blood pressure variability--clinical implications]

Area of Science:

• Cardiology
• Hypertension Research
• Clinical Significance of Blood Pressure Variability

Context:

• Blood pressure variability (BPV) assessment using standard deviation in 24-hour monitoring holds clinical importance.
• Existing research links BPV to vascular changes, left ventricular hypertrophy, and cardiovascular morbidity/mortality.
• Factors such as age, body mass, and comorbidities influence BPV, potentially diminishing its prognostic value.

Purpose:

• To evaluate the clinical significance and prognostic value of blood pressure variability (BPV).
• To explore the impact of various confounding factors on BPV's predictive capabilities.
• To review the evidence regarding pharmacotherapy's effect on BPV and organ damage progression.

Summary:

• BPV, particularly daily variability, is a strong indicator of vascular changes progression.
• 24-hour BPV correlates with nocturnal blood pressure dipping.
• Residual BPV, analyzed via Fourier spectral analysis in younger/middle-aged individuals, shows prognostic value.
• Current evidence does not convincingly support that reducing BPV with pharmacotherapy delays organ damage progression.

Impact:

• Highlights the complex interplay between BPV and various physiological/clinical factors.
• Underscores the need for nuanced interpretation of BPV in clinical practice.
• Suggests that while BPV is significant, its independent prognostic utility may be limited by confounders.
• Indicates a gap in evidence for therapeutic interventions targeting BPV to prevent organ damage.