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25 Possible Causes for Dizziness, Irregularly Irregular Heart Rhythm, Premature Atrial Contractions

  • Atrial Arrhythmia

    At other times, palpitations, chest pain, dizziness and shortness of breath warn of atrial fibrillations, according to the NIH.[] Normally, the heart contracts and then relaxes in a regular rhythm, moving blood from the upper chambers (atria) into the ventricles.[] Premature Supraventricular Contractions Also called “premature atrial contractions” (PACs), they happen when the atria contract too soon, causing the heart to beat out of[]

  • Atrial Fibrillation

    We report a previously healthy 58-years old female, admitted because of nausea, dizziness, somnolence, a left-sided hemiparesis and arterial hypotension.[] Atrial fibrillation, sometimes called "Afib", is the most prevalent type of heart arrhythmia (abnormal heart rhythm) and causes an irregular (and often rapid) heartbeat.[] An ECG shows normal sinus rhythm with a PR interval of 180 milliseconds and infrequent premature atrial contractions.[]

  • Multifocal Atrial Tachycardia

    Some symptoms of MAT are chest pain, lightheadedness, fainting, palpitations, shortness of breath, and dizziness.[] If the heart rate is less than 100 beats per minute, then the rhythm is wandering atrial pacemaker, or WAP.[] In several patients there seemed to be a transition from multifocal premature atrial contractions through chaotic atrial tachycardia to atrial fibrillation.[]

  • Atrial Flutter

    Symptoms: Symptoms of atrial flutter include fast paced heart beat, dizziness, lightheadedness, anxiety, shortness of breath and discomfort in the chest.[] This results in the rhythm becoming “irregularly irregular.”[] The observed initiations and terminations of AFl most often involved reentrant premature atrial contractions.[]

  • Supraventricular Tachycardia

    A 33-yr-old woman developed chest pain and dizziness while on an international commercial flight.[] The rhythm is irregularly irregular. P waves are not discernible.[] Rapid re-initiation of tachycardia is not uncommon, mostly due to premature atrial contractions stimulated by the adenosine.[]

  • Sinus Tachycardia

    The most common symptoms are palpitation, dizziness, chest discomfort, orthostatic intolerance, and fatigue.[] Electrocardiogram: ventricular arrhythmia Fibrillation Heart irregular Heart irregularly irregular Heart regularly irregular Irregular heart beat Irregular heart rate Neonatal[] Considerations include: fetal premature atrial contraction(s) : transient and not sustained fetal premature ventricular contraction(s) : transient and not sustained[]

  • Torsades De Pointes

    We report the case of an HIV patient receiving antiretroviral treatment, flucanazole and high-dose methadone, who suddenly complained of vertigo, dizziness, pre-syncope and[] Physical examination showed a well-nourished man with a blood pressure of 120/75 mm Hg, a pulse of 180 beats/min, and an irregularly irregular heart rhythm without murmurs[] The present report describes a patient with Takotsubo cardiomyopathy and torsades de pointes induced by premature atrial contraction associated with QT interval prolongation[]

  • Paroxysmal Nodal Tachycardia

    Sometimes you might have a drop in blood pressure and feel dizzy or lightheaded. Other times, the only feeling is the rapid heartbeat.[] Wandering atrial pacemaker (multifocal atrial rhythm) is an irregularly irregular rhythm caused by the random discharge of multiple ectopic atrial foci.[] If a premature atrial contraction, or PAC, or less commonly a premature ventricular contraction, or PVC, occurs at the right time, the normal conduction pathway will still[]

  • Conduction Disorder of the Heart

    […] conduction disorders can be caused by: old age medicines damage sustained after heart surgery Symptoms When the heart rate is too slow, the following symptoms may occur: dizziness[] Irregularly irregular rhythm with disorganized and irregular atrial activations and an absence of P waves Regular, sawtooth pattern and narrow QRS complex Atrioventricular[] The condition may cause dizziness or lightheadedness, or it may cause no symptoms at all. First-degree heart block may not require specific treatment.[]

  • Supraventricular Tachycardia with Aberrant Conduction

    In some patients with VT, they may not be in a state of collapse, but present with dizziness, palpitations, syncope, chest pain or heart failure.[] irregular heart rhythm Atrial flutter Causes a sawtooth pattern on ECG Ventricular tachycardia Rhythm starts in the ventricles Pediatric tachyarrhythmias are first divided[] Next chapter Premature Atrial Contractions (Atrial Beats / Extrasystoles) Related chapters Mechanisms of Cardiac Arrhythmias Premature Ventricular Contraction (Ventricular[]

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