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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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Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
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Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
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Related Experiment Video

Updated: Oct 2, 2025

Using Unidirectional Rotations to Improve Vestibular System Asymmetry in Patients with Vestibular Dysfunction
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A Patient With (Initially) Non-Persistent Vertigo - A Posterior Circulation Stroke Case.

Ana Costa1, Olinda Miranda1, Ana Cerqueira1

  • 1Internal Medicine, Hospital da Senhora da Oliveira, Guimarães, PRT.

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|February 28, 2022
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Summary

Posterior circulation strokes are challenging to diagnose, often missed in emergency settings. While medical treatments are standard, mechanical thrombectomy is a developing option for posterior vessel occlusion.

Keywords:
endovascular angioplastyposterior circulation strokeposterior circulation syndromevertebrobasilar insufficiencyvertebrobasilar ischemia

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Area of Science:

  • Neurology
  • Vascular Neurology

Background:

  • Posterior circulation strokes constitute 20-25% of all ischemic strokes.
  • Diagnosis of posterior circulation strokes is complex and frequently delayed.

Observation:

  • These strokes are misdiagnosed up to three times more often than anterior circulation strokes.
  • Current guidelines emphasize thrombolysis and medical therapy.

Findings:

  • Mechanical thrombectomy is an emerging treatment for posterior vessel occlusion.
  • Randomized clinical trials are needed to validate mechanical thrombectomy efficacy.

Implications:

  • Improved diagnostic strategies are crucial for timely intervention.
  • Further research is needed to establish mechanical thrombectomy as a standard treatment option.