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14 Possible Causes for Irregularly Irregular Heart Rhythm, P Wave Absent

  • Atrial Fibrillation

    P waves are absent and replaced by irregular electrical activity. The ventricular rate is irregular and chaotic.[web.archive.org] Atrial fibrillation, sometimes called "Afib", is the most prevalent type of heart arrhythmia (abnormal heart rhythm) and causes an irregular (and often rapid) heartbeat.[umcvc.org] P waves if arrhythmia is not captured on ECG then Holter monitoring in the outpatient setting these patients are hemodynamically stable telemitry in the inpatient setting[medbullets.com]

  • Atrial Arrhythmia

    waves absent; oscillating baseline f (fibrillation) waves Atrial rate 350-600 beats/min Irregular ventricular rhythm Ventricular rate 100-180 beats/min As a general rule the[bmj.com] Normally, the heart contracts and then relaxes in a regular rhythm, moving blood from the upper chambers (atria) into the ventricles.[atricure.com] This chaotic electrical activity results in a chaotic wave form between the QRS complexes. P waves are absent. They are replaced by lower case "f" waves.[practicalclinicalskills.com]

  • Atrial Flutter

    This results in the rhythm becoming “irregularly irregular.”[healio.com] Atrial fibrillation (AF) is an abnormal heart rhythm distinguished by rapid (usually greater than 300 beats per minute) irregularly irregular heart beat with no distinct P-wave[clinicaladvisor.com] There are only two other rhythms that are commonly irregularly irregular, including atrial fibrillation and multifocal atrial tachycardia, or MAT.[healio.com]

  • Wolff-Parkinson-White Syndrome

    Sometimes, the QRS complex may be normal, delta waves may be absent and p waves may be typically inverted on lateral and inferior leads.[symptoma.com] . • Ventricular Premature Contractions can initiate orthodromic tachycardia • On ECG findings, • the delta wave is absent, • QRS complex is normal, • P waves are inverted[slideshare.net] Author: James Heilman, MD Orthodermic Conduction – i.e. retrograde conduction through the accessory pathway Rate 200-300 Absent p waves (not visible behind fast QRS complexes[almostadoctor.co.uk]

  • Incessant Infant Ventricular Tachycardia

    waves Absent P waves Table 17 Wide QRS Complex Ventricular tachycardia (VT) is uncommon in children but can be rapidly fatal.[nhcps.com] irregular heart rhythm Atrial flutter Causes a sawtooth pattern on ECG Ventricular tachycardia Rhythm starts in the ventricles Pediatric tachyarrhythmias are first divided[nhcps.com] 220 bpm Infant: 220 bpm Child: 180 bpm Child: 180 bpm Slow onset Abrupt start/stop Fever, hypovolemia Pulmonary edema Varies with stimulation Constant, fast rate Visible P[nhcps.com]

  • Supraventricular Tachycardia with Aberrant Conduction

    waves Absent P waves Table 17 Wide QRS Complex Ventricular tachycardia (VT) is uncommon in children but can be rapidly fatal.[nhcps.com] Leads to thrombus Leads to Embolic Stroke A-fib is irregularly irregular If the heart rate is high enough, it can appear regular Atrial Flutter: Definition Rapid, Regular,[quizlet.com] irregular heart rhythm Atrial flutter Causes a sawtooth pattern on ECG Ventricular tachycardia Rhythm starts in the ventricles Pediatric tachyarrhythmias are first divided[nhcps.com]

  • Multifocal Atrial Tachycardia

    ECG shows regular, normal-appearing QRS complexes without identifiable P waves or with retrograde P waves (inverted in the inferior leads) that occur shortly before ( 0.1[msdmanuals.com] If the heart rate is less than 100 beats per minute, then the rhythm is wandering atrial pacemaker, or WAP.[healio.com] Irregularly irregular rhythm with varying PP, PR and RR intervals. At least 3 distinct P-wave morphologies in the same lead.[lifeinthefastlane.com]

  • Paroxysmal Nodal Tachycardia

    In most cases this results in a ‘typical’ SVT appearance with absent P waves and tachycardia AVNRT Slow-Fast Cardiac rhythm strips demonstrating (top) sinus rhythm and (bottom[lifeinthefastlane.com] Wandering atrial pacemaker (multifocal atrial rhythm) is an irregularly irregular rhythm caused by the random discharge of multiple ectopic atrial foci.[msdmanuals.com] Pseudo r’ wave may be seen in V1 Pseudo S waves may be seen in leads II, III or aVF.[lifeinthefastlane.com]

  • Atrial Tachyarrhythmia with Short PR Interval

    Rhythm Irregular Rate Very fast ( 350 bpm) for Atrial, but ventricular rate may be slow, normal or fast P Wave Absent - erratic waves are present PR Interval Absent QRS Normal[quizlet.com] Wandering atrial pacemaker (multifocal atrial rhythm) is an irregularly irregular rhythm caused by the random discharge of multiple ectopic atrial foci.[merckmanuals.com] P waves are either absent or abnormal (e.g. inverted) with a short PR interval ( retrograde P waves).[lifeinthefastlane.com]

  • Sinus Tachycardia

    The tachycardia ECG may be unremarkable, with P waves absent (hidden in the QRS).[patient.info] Electrocardiogram: ventricular arrhythmia Fibrillation Heart irregular Heart irregularly irregular Heart regularly irregular Irregular heart beat Irregular heart rate Neonatal[icd9data.com] ECG: Narrow QRS tachycardia of about 180 bpm with P waves often absent: they are hidden in the QRS, as atrial and ventricular depolarisation occur at the same time.[patient.info]

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