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Related Concept Videos

Cranial Nerves: Types Part I01:14

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Cranial nerves are responsible for transmitting motor and sensory information between the brain and various parts of the body. There are twelve pairs of cranial nerves. While the first six innervate the head and neck, the latter six nerves innervate the head and neck, as well as organs and tissues in the thoracic and abdominal cavities. They facilitate communication, expression, and autonomic control within the human body.
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Nociception—the ability to feel pain—is essential for an organism’s survival and overall well-being. Noxious stimuli such as piercing pain from a sharp object, heat from an open flame, or contact with corrosive chemicals are first detected by sensory receptors, called nociceptors, located on nerve endings. Nociceptors express ion channels that convert noxious stimuli into electrical signals. When these signals reach the brain via sensory neurons, they are perceived as pain.
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Angina II: Classification01:27

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Angina, also known as angina pectoris, is a chest pain resulting from diminished blood flow to the heart muscle and is often a symptom of coronary artery disease. Angina presents several variants with distinctive attributes, etiologies, and therapeutic approaches. The main types of angina include stable, unstable, variant (Prinzmetal's), microvascular, intractable, and silent ischemia.Stable angina is caused by atherosclerosis, which leads to the formation of plaques that narrow the coronary...
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Blood and Nerve Supply to the Bones01:29

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Bones are dynamic organs that require a rich supply of oxygen and nutrients. Around 5% to 10% of the cardiac output supplies blood to the bones. A typical long bone has three main sources: the nutrient artery, the metaphyseal and epiphyseal arteries, and the periosteal arteries.
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Related Experiment Video

Updated: Apr 18, 2026

Subcutaneous Trigeminal Nerve Field Stimulation for Refractory Facial Pain
09:35

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[Essential trigeminal neuralgia].

M Rusu1, A Stanciu, C Robu

  • 1Clinica de neurochirurgie Iaşi.

Revista Medico-Chirurgicala a Societatii De Medici Si Naturalisti Din Iasi
|January 17, 2015
PubMed
Summary
This summary is machine-generated.

Retrogasserian radicotomy for essential trigeminal neuralgia offers good long-term results (89% success). While surgical indications are narrowing, this procedure remains a viable option with low recurrence rates (11%).

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Area of Science:

  • Neurosurgery
  • Surgical Neurology

Context:

  • Essential trigeminal neuralgia presents a treatment challenge.
  • Current treatment landscape includes drug therapy, percutaneous surgery, and traditional/microsurgery.
  • Retrogasserian radicotomy is a significant surgical approach.

Purpose:

  • To evaluate the efficacy and outcomes of retrogasserian radicotomy for essential trigeminal neuralgia.
  • To assess the long-term success and recurrence rates of this surgical intervention.

Summary:

  • A series of 56 patients undergoing retrogasserian radicotomy via an intradural temporal route for essential trigeminal neuralgia were analyzed.
  • The study reports a high rate of permanent success (89%) with a low failure and recurrence rate (11%).
  • The procedure, performed under general anesthesia with controlled intracranial hypotension, enhances surgical security.

Impact:

  • Retrogasserian radicotomy, despite evolving treatment options, remains a valuable surgical indication for essential trigeminal neuralgia.
  • The findings support the continued use of this "great surgery" technique in select cases.
  • Improved surgical safety and security are highlighted for complex neurosurgical procedures.