# Microvascular Dysfunction as a Bridge between Chronic Obstructive Pulmonary Disease and Ischemic Events: Microvascular Dysfunction linking COPD and Ischemic

## TL;DR

This review explores how microvascular dysfunction connects COPD to ischemic events like heart attacks and strokes, suggesting a need for broader treatment approaches.

## Contribution

The paper proposes microvascular dysfunction as a novel mechanistic link between COPD and systemic vascular complications.

## Key findings

- Microvascular dysfunction, including endothelial injury and capillary rarefaction, is a key intermediary between COPD and ischemic events.
- Systemic inflammation and oxidative stress from the lungs contribute to vascular damage and atherosclerosis.
- Therapeutic strategies targeting endothelial health may offer early intervention opportunities for COPD patients.

## Abstract

Chronic obstructive pulmonary disease (COPD), traditionally viewed as a localized
pulmonary disorder, is now recognized as a systemic disease with far-reaching
vascular consequences. Among its most concerning comorbidities are ischemic
events such as myocardial infarction and stroke, which occur at
disproportionately high rates in these patients, even after adjusting for shared
risk factors like smoking. This unexpected persistence of risk has driven
interest in the underlying mechanisms that might link lung dysfunction to
vascular pathology. Emerging evidence suggests that microvascular dysfunction
(MVD), characterized by endothelial injury, capillary rarefaction, and impaired
vasoreactivity, may serve as a pivotal intermediary in this relationship.
Systemic inflammation and oxidative stress, initiated in the lungs, appear to
spill over into the circulation, damaging the vascular endothelium and setting
the stage for atherosclerosis and ischemic injury. This review synthesizes
current findings from molecular, imaging, and epidemiological studies to propose
MVD as a central mechanistic bridge between COPD and ischemic events. We also
examine therapeutic strategies that target endothelial health and highlight
potential opportunities for early intervention. By reframing COPD as a disease
with significant vascular implications, this review underscores the need for an
integrated clinical approach that goes beyond pulmonary function and addresses
systemic vascular health.