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Related Concept Videos

Vascular Spasm01:16

Vascular Spasm

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The vascular phase, also known as vasospasm, is the initial stage of hemostasis, crucial for preventing excessive bleeding when a blood vessel is injured. After a vessel is cut, nerves in the damaged area trigger pain and other sensory impulses. Simultaneously, the smooth muscles in the vessel wall contract, resulting in a vascular spasm. This contraction reduces the vessel's diameter at the injury site, slowing or stopping blood loss through the vessel wall. Vascular spasms typically last...
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Development of Blood Vessels01:07

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The development of the vascular system in a fetus is a complex and intricate process that begins as early as 15 to 16 days post-conception. This process starts outside the embryo, specifically in the mesoderm of the yolk sac, chorion, and connecting stalk. Approximately two days later, the formation of blood vessels occurs within the embryo itself.
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...
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Assessment of apical radial pulse01:25

Assessment of apical radial pulse

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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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Veins of Head and Neck01:19

Veins of Head and Neck

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The blood drainage from the head and neck is primarily managed by three pairs of veins: the external jugular, internal jugular, and vertebral veins. The external jugular veins drain superficial scalp and face structures, passing over the sternocleidomastoid muscles to empty into the subclavian veins.
On the other hand, the vertebral veins, unlike their arterial counterparts, are not primarily responsible for brain drainage. Instead, they drain the cervical vertebrae, spinal cord, and some small...
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Veins of Upper Limbs01:17

Veins of Upper Limbs

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The human circulatory system, a marvel of biological engineering, is a complex network of vessels that transport blood throughout the body. Among these, the veins responsible for carrying blood from the upper limbs are divided into two categories: deep and superficial.
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Vascular Resistance01:20

Vascular Resistance

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Vascular resistance is a critical concept in understanding blood flow dynamics in the circulatory system. It refers to the resistance that blood encounters as it flows through the blood vessels. This resistance is a key factor in determining blood pressure and cardiac workload.
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Related Experiment Video

Updated: Apr 15, 2026

Scaling of Engineered Vascular Grafts Using 3D Printed Guides and the Ring Stacking Method
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[Vascular rings, our experience with 18 cases].

A B Domènech, J López, P Rodríguez

    Cirugia Pediatrica : Organo Oficial De La Sociedad Espanola De Cirugia Pediatrica
    |April 8, 2015
    PubMed
    Summary
    This summary is machine-generated.

    Vascular rings, rare congenital anomalies, often present with common childhood respiratory or digestive symptoms. Early diagnosis and multidisciplinary evaluation are key for appropriate management, with most patients achieving asymptomatic status post-intervention.

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    Area of Science:

    • Pediatric Surgery
    • Congenital Cardiovascular Anomalies
    • Thoracic Surgery

    Context:

    • Vascular rings are rare congenital anomalies causing airway or esophageal compression.
    • Symptoms like stridor and dysphagia are common in affected children.
    • Diagnosis and management require specialized pediatric care.

    Purpose:

    • To review the diagnosis and management of vascular rings.
    • To evaluate the role of endoscopy in diagnosis.
    • To analyze outcomes in a cohort of pediatric patients.

    Summary:

    • A retrospective study of 18 patients with vascular rings (median age 2 years) revealed common respiratory (46.7%) and digestive (20%) symptoms.
    • Double aortic arch and aberrant right subclavian artery were most frequent.
    • Surgical intervention in 44.4% led to good outcomes, with 88.9% asymptomatic at follow-up, despite some postoperative complications.

    Impact:

    • Highlights the importance of considering vascular rings in children with persistent respiratory or swallowing issues.
    • Emphasizes the need for multidisciplinary assessment for surgical candidacy.
    • Demonstrates favorable long-term outcomes with appropriate management.