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  2. Sinus node dysfunction - Wikipedia

    en.wikipedia.org/wiki/Sinus_node_dysfunction

    Often sinus node dysfunction produces no symptoms, especially early in the disease course. Signs and symptoms usually appear in more advanced disease and more than 50% of patients will present with syncope or transient near-fainting spells as well as bradycardias that are accompanied by rapid heart rhythms, referred to as tachycardia-bradycardia syndrome [4] [5] Other presenting signs or ...

  3. Tachycardia - Wikipedia

    en.wikipedia.org/wiki/Tachycardia

    6–11 months: Tachycardia >169 bpm; 1–2 years: Tachycardia >151 bpm; 3–4 years: Tachycardia >137 bpm; 5–7 years: Tachycardia >133 bpm; 8–11 years: Tachycardia >130 bpm; 12–15 years: Tachycardia >119 bpm >15 years – adult: Tachycardia >100 bpm; Heart rate is considered in the context of the prevailing clinical picture.

  4. Tachycardia-induced cardiomyopathy - Wikipedia

    en.wikipedia.org/wiki/Tachycardia-induced_cardio...

    This Holter monitor strip of a 5-year-old showing atrial tachycardia. [7] This person was eventually diagnosed with tachycardia-induced cardiomyopathy. [7] There are no specific diagnostic criteria for TIC, and it can be difficult to diagnose for a number of reasons.

  5. Accessory pathway - Wikipedia

    en.wikipedia.org/wiki/Accessory_pathway

    Accessory pathways are often diagnosed using an electrocardiogram, but characterisation and location of the pathway may require an electrophysiological study. Accessory pathways may not require any treatment, but those causing symptoms may be treated with medication including calcium channel antagonists , beta blockers or flecainide . [ 3 ]

  6. Arrhythmia - Wikipedia

    en.wikipedia.org/wiki/Arrhythmia

    In adults and children over 15, resting heart rate faster than 100 beats per minute is labeled tachycardia. Tachycardia may result in palpitation; however, tachycardia is not necessarily an arrhythmia. Increased heart rate is a normal response to physical exercise or emotional stress.

  7. Postural orthostatic tachycardia syndrome - Wikipedia

    en.wikipedia.org/wiki/Postural_orthostatic...

    Postural orthostatic tachycardia syndrome (POTS) is a condition characterized by an abnormally large increase in heart rate upon sitting up or standing. [1] POTS is a disorder of the autonomic nervous system that can lead to a variety of symptoms, [10] including lightheadedness, brain fog, blurred vision, weakness, fatigue, headaches, heart palpitations, exercise intolerance, nausea ...

  8. Christina Applegate's Daughter, 13, Diagnosed With POTS ... - AOL

    www.aol.com/christina-applegates-daughter-13...

    The 52-year-old and her 13-year-old daughter revealed on the latest episode of Christina's MeSsy podcast that Sadie was recently diagnosed with postural orthostatic tachycardia syndrome (POTS).

  9. Inappropriate sinus tachycardia - Wikipedia

    en.wikipedia.org/.../Inappropriate_sinus_tachycardia

    Inappropriate sinus tachycardia, defined as 24-hour average HR > 90 bpm and HR > 100 bpm in a supine or sitting position, has a prevalence of 1.16% in the general population. [20] The epidemiology of Inappropriate sinus tachycardia is not well understood. IST can occur at any age, but it is most common in adolescents and young adults. [2]