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Related Concept Videos

Tension01:10

Tension

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Tension is a force along the length of a medium, in particular, a force carried by a flexible medium, such as a rope or cable. The word "tension" comes from Latin, meaning "to stretch". Not coincidentally, the flexible cords that carry muscle forces to other parts of the body are called tendons. Any flexible connector, such as a string, rope, chain, wire, or cable, can exert pull only parallel to its length; so, a force carried by a flexible connector is a tension with a...
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The muscles that move the head are a dynamic and complex group of structures that work together to facilitate a wide range of head movements, including rotation, flexion, extension, and lateral bending.
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Post-tensioned masonry walls use high-strength steel rods or flexible tendons to enhance the strength and efficiency of masonry structures. These elements are securely anchored to the foundation and extend vertically either within the cores of the masonry units or between the masonry wythes. The construction process involves building the wall with these tensioning elements in place and allowing the mortar to fully cure.
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The inner ear assumes dual functionalities of auditory perception and equilibrium maintenance. The vestibule is the organ responsible for balance. This organ contains mechanoreceptors, specifically hair cells, endowed with stereocilia, which aid in deciphering information regarding the position and motion of our heads. Two intrinsic components, the utricle and saccule, help perceive head position, while the semicircular canals track head movement. Neurological messages initiated in the...
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Tachyarrhythmias are a type of dysrhythmia where the heart rate exceeds 100 beats per minute. Here are some common types of tachyarrhythmias:Sinus TachycardiaSinus tachycardia originates from increased impulses from the sinus node, leading to an elevated heart rate. It is often triggered by stress, fever, or exercise.Patients may experience palpitations, a sensation of a racing heart, dizziness, and chest discomfort.Causes and Risk Factors: Common causes include physical exertion, emotional...
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Nightmares and night terrors represent two distinct types of sleep disturbances that differ in timing, characteristics, and the sleeper's recall of the event. Nightmares are vivid, disturbing dreams that usually awaken the sleeper from REM sleep, a stage of sleep where brain activity is high, and dreams are most frequent. Upon awakening, individuals often have detailed recollections of their nightmares, which can include themes of threats to survival, security, or self-esteem.
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Updated: Dec 9, 2025

3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache
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[Tension type headaches : Quo vadis?]

Andreas Straube1, Stefanie Förderreuther2, Ozan Emre Eren2

  • 1Klinik für Neurologie, Oberbayerisches Kopfschmerzzentrum, Klinikum Großhadern, Ludwig-Maximilians-Universität, 81377, München, Deutschland. andreas.straube@med.uni-muenchen.de.

Schmerz (Berlin, Germany)
|September 14, 2020
PubMed
Summary

Tension-type headaches are common, but distinguishing them from migraines can be challenging. This paper clarifies diagnostic criteria and treatment options for tension-type headaches and migraines.

Keywords:
Chronic daily headacheDescending anti-nociceptive pathwaysMigraine disordersTension type headache, chronicTension type headache, episodic

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Area of Science:

  • Neurology
  • Headache Medicine

Background:

  • Episodic tension-type headache (TTH) is the most common primary headache disorder.
  • Chronic TTH is defined as headache occurring >15 days/month for >3 months.
  • Distinguishing TTH from migraine is clinically challenging.

Purpose of the Study:

  • To enhance differential diagnosis between TTH and migraine.
  • To review literature-supported therapies for TTH and migraine.
  • To explore similarities and differences in pathophysiology, including the convergence hypothesis.

Main Methods:

  • Literature review of diagnostic criteria for TTH and migraine.
  • Analysis of therapeutic options for both headache types.
  • Discussion of pathophysiological similarities and differences.

Main Results:

  • Difficulties in differentiating episodic and chronic TTH from moderate and chronic migraine, respectively.
  • Identification of specific diagnostic markers and evidence-based therapies.
  • Exploration of the convergence hypothesis as a potential shared mechanism.

Conclusions:

  • Accurate differential diagnosis between TTH and migraine is crucial for effective management.
  • Evidence-based therapies exist for both conditions, requiring precise diagnosis.
  • The convergence hypothesis offers a potential framework for understanding shared pathophysiology.