Collateral Artery Development
Collateral Artery Development - Related Videos
06:57
Arterial Line Placement
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2023
Source: Sharon Bord, MD, Department of Emergency Medicine, The Johns Hopkins University School of Medicine, Maryland, USA When monitoring patients, it is important to obtain values that are accurate and reliable. Blood pressure monitoring is one of the essential vital signs, and for a majority of patients, measuring it utilizing non-invasive techniques provides accurate values. However, there are situations in which the blood pressure requires more exact, specific, and reliable measurements.
13:10
Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery (ALCAPA)
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Cited by 7 •
2017
Surgical correction of ALCAPA is highly recommended, regardless of age or the degree of intercoronary collateralization. This protocol presents a technique for the direct re-implantation of adult-type ALCAPA into the aorta to re-establish the dual-coronary perfusion. Whenever feasible, direct re-implantation is preferred to other surgical correction techniques.
01:27
Sympathetic Pathways: Collateral Ganglia and Adrenal Medulla
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2025
The sympathetic pathways of the collateral ganglia and adrenal medulla serve unique but interconnected roles in the sympathetic response. Collateral Ganglia Sympathetic preganglionic axons reach the collateral ganglia along the route of splanchnic nerves. These nerves bypass the sympathetic trunk and communicate with sympathetic postganglionic neurons housed in the prevertebral ganglia. These ganglia supply the organs of the abdominopelvic cavity. The greater splanchnic nerve, formed by the...
05:42
Development of a Murine Model for Femoral Artery Anastomotic Stenosis
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2025
Here we present a murine model for femoral artery anastomosis, offering researchers a valuable animal model to study and simulate vascular anastomotic stenosis. This development is crucial for advancing our understanding of the pathophysiology underlying this condition and facilitating more accurate and effective research into vascular diseases.
12:15
Optimized System for Cerebral Perfusion Monitoring in the Rat Stroke Model of Intraluminal Middle Cerebral Artery Occlusion
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Cited by 8 •
2013
Cerebral perfusion monitoring has been demonstrated to improve accuracy in ischemic stroke models. Technical difficulties often limit the use of this essential tool for cerebrovascular research. In this video, an optimized system is shown to obtain a single or multi-site hemodynamic monitoring during intraluminal middle cerebral artery occlusion in rats.
FAQs
Reduced pressure gradients and increased fluid shear stress provide the main hemodynamic cues. Endothelial cells lining pre-existing arterial connections sense these changes and activate signaling pathways. Those pathways support endothelial cell proliferation, promote inflammation, and stimulate outward remodeling, allowing the collateral network to enlarge. Mechanical changes therefore become structural vascular adaptation.
Outward remodeling enlarges pre-existing arterial connections rather than describing only cellular activation. In collateral artery development, this structural change is linked with the vessel’s ability to accommodate blood flow around an obstructed major artery. Considering remodeling connects endothelial signaling and cell proliferation with the practical goal of maintaining tissue perfusion during arterial narrowing or blockage.
The overview indicates that collateral growth does not provide the same degree of protection in every person. This individual variability can influence how well tissue perfusion is maintained and how much ischemic injury is limited when a major artery narrows or becomes blocked. It also makes collateral development relevant to risk assessment and treatment planning.
Studying this process can inform risk assessment and treatment planning by showing how effectively alternative arterial pathways may respond to reduced perfusion. The resulting collateral growth may limit ischemic injury, but it does not have uniform effectiveness among individuals. Clinicians and researchers therefore consider it alongside, rather than as a replacement for, conventional revascularization.
Collateral artery development has relevance in coronary, cerebral, and peripheral artery disease. In each setting, enlargement of alternative arterial pathways may help preserve tissue perfusion when a major vessel is narrowed or blocked. This makes the process important for understanding differences in ischemic injury across vascular territories and for guiding disease-focused research.
No. Collateral growth can help maintain perfusion and may limit ischemic injury, but its effectiveness varies among individuals. The overview presents this adaptation as supporting treatment planning and research into improved blood flow, not as a substitute for conventional revascularization. Its clinical importance lies in complementing established approaches to arterial obstruction.