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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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IntroductionA range of clinical features characterizes Mitral Valve Prolapse (MVP), but it is important to note that many individuals with MVP are asymptomatic and may remain so throughout their lives. For those who do exhibit symptoms, the following are the key clinical features:Palpitations: This is a common symptom where individuals feel an irregular or rapid heartbeat. Palpitations in MVP are often due to arrhythmias such as premature ventricular contractions or supraventricular...
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Related Experiment Video

Updated: Apr 5, 2026

Modified Mouse Model of Repetitive Mild Traumatic Brain Injury Incorporating Thinned-Skull Window and Fluid Percussion
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Thunderclap Headache.

Todd J Schwedt

    Continuum (Minneapolis, Minn.)
    |August 8, 2015
    PubMed
    Summary

    Thunderclap headaches require immediate medical evaluation to identify serious underlying causes like subarachnoid hemorrhage. Prompt diagnosis and treatment are crucial for managing this severe headache condition.

    Area of Science:

    • Neurology
    • Emergency Medicine
    • Diagnostic Imaging

    Background:

    • Thunderclap headache is a severe, rapid-onset headache demanding urgent assessment.
    • It necessitates ruling out life-threatening conditions associated with high morbidity and mortality.

    Purpose of the Study:

    • To provide an updated summary of thunderclap headache.
    • To cover clinical presentation, diagnostic workup, and common etiologies.

    Main Methods:

    • Review of current literature on thunderclap headaches.
    • Emphasis on emergent diagnostic strategies including neuroimaging and lumbar puncture.

    Main Results:

    • Subarachnoid hemorrhage and reversible cerebral vasoconstriction syndrome are leading causes.

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  • Other causes include cervical artery dissection, cerebral venous sinus thrombosis, and intracranial hypotension.
  • Primary thunderclap headache may represent undiagnosed underlying conditions.

    • Conclusions:

    • Emergent and thorough evaluation is essential for thunderclap headache patients.
    • Identifying the cause allows for targeted and appropriate therapy initiation.