Microvascular Disease
Microvascular Disease - Related Videos
11:08
Endothelialized Microfluidics for Studying Microvascular Interactions in Hematologic Diseases
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Cited by 52 •
2012
A method to culture an endothelial cell monolayer throughout the entire inner 3D surface of a microfluidic device with microvascular-sized channels (<30 μm) is described. This in vitro microvasculature model enables the study of biophysical interactions between blood cells, endothelial cells, and soluble factors in hematologic diseases.
10:39
Laser Doppler: A Tool for Measuring Pancreatic Islet Microvascular Vasomotion In Vivo
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Cited by 7 •
2018
Pancreatic islet microvascular vasomotion regulates islet blood distribution and maintains the physiological function of islet β cells. This protocol describes using a laser Doppler monitor to determine the functional status of pancreatic islet microvascular vasomotion in vivo and to assess the contributions of pancreatic islet microcirculation to pancreatic-related diseases.
10:35
Microvascular Decompression: Salient Surgical Principles and Technical Nuances
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Cited by 13 •
2011
There are many available options for management of the patient with trigeminal neuralgia. Microvascular decompression, while the most invasive of all options, is also the most effective at achieving long term remission of symptoms. Video instruction on how to maximize efficacy and minimize complications with this procedure is described.
03:48
Choroid Sprouting Assay to Study Ocular Microvascular Proliferation Ex Vivo
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2025
This video demonstrates the development of an ex vivo model of choroidal sprouting to study ocular microvascular angiogenesis. The assay involves culturing mouse eye explants containing the choroid tissue attached to the sclera and retinal pigment epithelium under specific conditions that promote choroidal microvascular sprouting.
05:54
Intravital Fluorescence Microscopy to Study Microvascular Thrombus Formation
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2025
This video demonstrates the intravital fluorescence microscopy technique to study thrombus formation in a mouse model. The mouse is injected with a fluorophore-labeled polysaccharide to monitor blood circulation. Upon illumination with a high-intensity light, the phototoxic induction of an injury in the microvasculature of the ear leads to the formation of a thrombus, which is confirmed by visualizing the obstruction in the blood flow.
FAQs
Endothelial dysfunction disrupts the normal behavior of the cells lining small blood vessels. This can impair regulation within the microcirculation and contribute to narrowing, reduced blood flow, and less effective exchange between blood and tissues. As oxygen delivery declines, affected organs may become vulnerable to progressive injury, particularly when vascular stress persists.
These processes can reduce the space available for blood to move through the microcirculation or interfere with normal flow. Vessel-wall thickening narrows small vessels, while inflammation and abnormal clotting can further impair circulation. The combined effect may limit tissue oxygen delivery and contribute to organ dysfunction rather than producing only a localized vascular abnormality.
When blood flow through arterioles, capillaries, or venules is reduced, tissues may receive less oxygen and have impaired exchange with the bloodstream. The consequences depend on the organs involved. Ongoing microvascular injury may therefore affect the eyes, kidneys, nerves, heart, or brain, linking changes in small vessels with broader clinical complications.
Assessment combines several types of information rather than relying on one finding. Clinicians may evaluate symptoms, order laboratory tests, use imaging, and measure organ function to identify evidence of vascular injury. This combined approach helps relate possible microcirculatory impairment to affected tissues and supports decisions about risk reduction and follow-up.
Each assessment method contributes a different perspective on possible vascular injury. Laboratory testing can add measurable clinical information, imaging can help evaluate relevant structures, and organ-function measures indicate whether tissue performance has been affected. Used together with symptom evaluation, these tools help identify complications and monitor whether the clinical situation is changing.
Diabetes and hypertension are conditions associated with microvascular complications, making small-vessel health an important part of clinical risk assessment. Injury may involve the eyes, kidneys, nerves, heart, or brain. Recognizing vascular impairment can support risk-reduction strategies and monitoring aimed at limiting progressive organ damage across these vulnerable sites.