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Related Concept Videos

Radial System Protection01:23

Radial System Protection

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Radial systems employ time-delay overcurrent relays to reduce load interruptions. When a fault occurs, the nearest breaker opens first, while upstream breakers remain closed due to longer delay settings. This approach ensures minimal disruption to the rest of the system.
In a radial system with a fault downstream of the third breaker, ideally, only the third breaker will open, isolating the fault and interrupting the load connected beyond it. The second breaker has a longer delay setting,...
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Assessment of radial pulse01:11

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Assessment of Radial Pulse
The radial pulse, located at the wrist, is often the preferred site for assessing peripheral pulse because of its accessibility and dependability. The process of determining the radial pulse involves several steps:
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Assessment of apical radial pulse01:25

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Apical-Radial (A-R) Pulse Assessment
The A-R pulse assessment involves simultaneous evaluation of the apical and radial pulses. When the apical and radial pulse rates vary, this assessment helps identify a pulse deficit.
Pre-Procedural Preparation
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The external iliac artery transitions out of the body cavity, entering the femoral region of the lower leg, and is renamed the femoral artery at the point where it traverses the body wall. This artery is responsible for the distribution of blood to the thigh's deep muscles and the skin's ventral and lateral regions, achieved through several minor branches and the lateral deep femoral artery, which also spawns a lateral circumflex artery. The knee area receives blood from the genicular...
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Arteries, the vasculature responsible for transporting blood from the heart, possess robust walls capable of enduring the elevated pressures exerted by the heartbeat. Arteries near the heart are especially thick-walled and enriched with elastic fibers across their three tunics, classifying them as elastic or conducting arteries. These arteries, usually with a diameter exceeding 10 mm, are characterized by their ability to dilate in response to the blood pumped from the heart's ventricles...
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The subclavian artery transitions into the axillary artery as it exits the chest and enters the axillary region. This artery is critical for supplying blood to the shoulder area, including the head of the humerus, through the humeral circumflex arteries. As the vessel continues into the upper arm or brachium, it becomes the brachial artery. This artery plays a key role in vascularizing the brachial region and bifurcates at the elbow into several branches. These branches include the deep...
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Related Experiment Video

Updated: Feb 12, 2026

Vascularized Composite Upper Limb Allograft Harvesting for Proximal Arm Allotransplantation
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Open radial artery harvesting.

Christopher Lau1, Mario Gaudino1

  • 1Weill Cornell Medicine, Department of Cardiothoracic Surgery, New York, USA.

Multimedia Manual of Cardiothoracic Surgery : MMCTS
|April 10, 2018
PubMed
Summary

The radial artery is a preferred choice for coronary artery bypass grafting due to its long-term success. This paper details a technique for open radial artery harvesting to minimize damage and prevent vasospasm.

Area of Science:

  • Cardiovascular Surgery
  • Vascular Surgery
  • Surgical Techniques

Background:

  • The radial artery is increasingly utilized as a bypass conduit in arterial coronary bypass grafting.
  • It offers significant long-term patency and survival advantages over other conduits.
  • Minimizing endothelial damage during harvesting is crucial to prevent vasospasm.

Discussion:

  • Open radial artery harvesting facilitates meticulous dissection, preserving the vessel's integrity.
  • This approach aims to reduce the risk of endothelial damage, a key factor in preventing post-operative vasospasm.
  • The presented technique emphasizes careful preparation to optimize the conduit's function.

Key Insights:

  • Open harvesting allows for precise dissection of the radial artery.

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  • Careful technique minimizes endothelial damage, thereby preventing vasospasm.
  • The presented method ensures optimal preparation of the radial artery for bypass grafting.

    • Outlook:

    • Further research may explore long-term outcomes comparing this open harvesting technique with other methods.
    • Standardization of this technique could enhance its widespread adoption in coronary artery bypass surgery.
    • Continued investigation into preventing vasospasm in arterial conduits remains a priority.