The Dose-response of Blood Pressure Variability in Stroke and Coronary Heart Disease

Woro Riyadina1, Sulistyowati Tuminah1, Lely Indrawati1

  • 1Research Center for Public Health and Nutrition, Organization Research for Health, National Research and Innovation Agency, Center Jakarta, Indonesia.

PubMed

Insights

Blood pressure variability (BPV) predicts vascular events like stroke and coronary heart disease (CHD). Controlling BPV is crucial for preventing these serious vascular conditions.

Area of Science:

  • Cardiovascular Science
  • Epidemiology
  • Public Health

Background:

  • Blood pressure variability (BPV) is recognized as a potential predictor of vascular events.
  • Elevated BPV can trigger target organ damage.

Purpose of the Study:

  • To determine the association between blood pressure variability (BPV) and the incidence of stroke and coronary heart disease (CHD).
  • Investigate BPV as a risk factor within the Bogor Cohort Study in Indonesia.

Main Methods:

  • A prospective cohort study involving 1649 Indonesian adults (aged ≥31 years) over six years.
  • Vascular events (stroke or CHD incidents) were monitored from 2011-2017 and 2012-2018.
  • Statistical analysis controlled for age, hypertension status, and lipid profile.

Main Results:

  • The incidence of vascular events was 12.4% over the six-year monitoring period.
  • Increased risk of vascular events, stroke, and CHD was observed with higher quintiles of systolic and diastolic BPV.
  • Specific thresholds for systolic BPV (≥12.10 mmHg) and diastolic BPV (≥7.31 mmHg) indicated significantly elevated risks (OR 2.3 and 1.7, respectively).

Conclusions:

  • Blood pressure variability (BPV) is an independent predictor of vascular events, including stroke and coronary heart disease (CHD).
  • Clinicians and the public should prioritize the control of BPV as a modifiable risk factor for cardiovascular diseases.

Related Concept Videos

Regulation of Stroke Volume01:27

Regulation of Stroke Volume

The regulation of stroke volume, which is the amount of blood the heart pumps out during each heartbeat, is critical for maintaining a healthy circulatory system. Stroke volume is influenced by three main factors: preload, contractility, and afterload.
Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...
3.1K
Cardiac Output II: Effect of Stroke Volume on Cardiac Output01:22

Cardiac Output II: Effect of Stroke Volume on Cardiac Output

Cardiac output (CO), the amount of blood the heart pumps per minute, is a parameter in cardiovascular physiology determined by stroke volume and heart rate. Stroke volume, the amount of blood pushed from one of the ventricles per heartbeat, is influenced by preload, afterload, and contractility.
Preload
Preload refers to the initial elongation of the cardiac myocytes before contraction and is related to the volume of blood filling the heart at the end of diastole, or end-diastolic volume. The...
587
Factors affecting Blood pressure01:28

Factors affecting Blood pressure

Several physiological and lifestyle factors influence blood pressure (BP). Understanding these factors is crucial as they are significant in patient education and blood pressure management.
Physiological Factors:
2.9K
Hypertension and Regulation of Blood Pressure01:18

Hypertension and Regulation of Blood Pressure

Hypertension, the most common cardiovascular disease, is diagnosed through repeated measurements of elevated blood pressure. Its risks, including damage to the kidney, heart, and brain, are directly proportional to blood pressure levels. Starting from 115/75 mm Hg, the risk of cardiovascular disease doubles with each increment of 20/10 mm Hg. The diagnosis relies on blood pressure measurements, not on patient symptoms, as hypertension is often asymptomatic until end-organ damage is imminent or...
1.9K
Cardiac Output and Stroke Volume01:11

Cardiac Output and Stroke Volume

Cardiac output (CO) is an integral aspect of human physiology, reflecting the heart's efficiency and responsiveness to the body's needs. It represents the volume of blood that the left or right ventricle ejects into the aorta or pulmonary trunk each minute. The CO is calculated by multiplying the heart rate (HR)—the number of heartbeats per minute—by the stroke volume (SV)—the amount of blood pumped out with each heartbeat.
In an average resting adult male, the typical cardiac...
2.7K
Chronopharmacokinetics: Circadian Rhythms and Influence on Drug Response01:15

Chronopharmacokinetics: Circadian Rhythms and Influence on Drug Response

Circadian rhythms are cyclic changes that are crucial in plasma drug concentrations. Various standard circadian parameters, including core body temperature, heart rate, and other cardiovascular factors, directly impact disease states and the therapeutic response to drug therapy.
The time of drug administration is an important factor to consider, as it can influence the toxic dose of a drug. For example, a study conducted by Prins et al. in 1997 examined the effects of the timing of...
40