Is the peripheral microcirculation a window into the human coronary microvasculature?

Gopika SenthilKumar1, Stephen T Hammond2, Zachary Zirgibel3

  • 1Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI, United States; Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, United States; Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, United States.

Insights

The peripheral microcirculation may serve as a valuable surrogate for assessing coronary microvascular health. Studying peripheral endothelial function can offer insights into cardiovascular disease mechanisms and potential treatments.

Area of Science:

  • Cardiovascular Science
  • Vascular Biology
  • Medical Research

Background:

  • Microvascular dysfunction, particularly in the coronary endothelium, is a significant risk factor for major adverse cardiac events.
  • Current methods for evaluating coronary microvasculature are often invasive and costly.
  • The peripheral microcirculation offers a more accessible alternative for studying microvascular health.

Purpose of the Study:

  • To critically evaluate studies assessing the peripheral microcirculation as a surrogate for coronary microvascular health.
  • To determine if peripheral microcirculation can provide insights into coronary microvascular dysfunction.
  • To explore the potential of peripheral microcirculation in predicting cardiovascular outcomes.

Main Methods:

  • Review of prognostic, physiological, and mechanistic studies in humans.
  • Analysis of existing evidence correlating coronary and peripheral endothelial function.
  • Evaluation of the response of peripheral microvasculature to (patho)physiological stress.

Main Results:

  • Evidence suggests a correlation between human coronary and peripheral endothelial function in vivo.
  • The peripheral microvasculature exhibits similar responses to stress as the coronary microvasculature.
  • Peripheral microcirculation can be leveraged to study mechanisms of coronary microvascular dysfunction.

Conclusions:

  • The peripheral microcirculation shows promise as a non-invasive surrogate for assessing coronary microvascular health.
  • Endothelial health is a key factor linking coronary and peripheral microvascular beds.
  • Peripheral microcirculation studies may aid in developing therapeutic strategies for cardiovascular diseases.