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72 Possible Causes for Inverted P Wave, Sinus Bradycardia

  • Paroxysmal Supraventricular Tachycardia

    Most patients present with palpitations and dizziness, and their electrocardiogram demonstrates a narrow QRS complex and regular tachycardia with hidden or inverted P waves[ncbi.nlm.nih.gov] Conclusions: Prolonged conduction, low voltage, sinus bradycardia and different atrio-ventricular or brunched blocks are classical sings of hypothyroidism, however, our case[endocrine-abstracts.org] P waves in leads II, III, aVF, V 3 -V 6 Rare: References: [1] [3] [4] Pathophysiology AVRT Do not confuse atrioventricular reentrant (or reciprocating) tachycardia ( AVRT[amboss.com]

  • Atrial Bigeminy

    P wave with a PRI 120ms.[app.figure1.com] bradycardia with ventricular rates of 38-45 beats/min and the ectopic P waves were visible on only one of the ECG channels); 3. paroxysms of atrial fibrillation initiated[ncbi.nlm.nih.gov] This can be mistaken for sinus bradycardia if the APC is buried in the t wave since the APC will reset the SA node and lead to a long P-P interval.[ecg-educator.blogspot.com]

  • Enhanced Vagal Tone

    Note the inverted P waves that precede each QRS complex, with a rate of 115 bpm.[misc.medscape.com] Pacing for Bradycardias in inferior MI. Generally not necessary for sinus bradycardia. Few with CHB require it Persistent hypotension and RVMI needs it often.[drsvenkatesan.com] The symptoms of sinus bradycardia may include dyspnea, dizziness, and extreme fatigue.[afpafitness.com]

  • Premature Atrial Contractions

    wave is abnormal Premature (earlier than expected) Morphology different than normal P wave Inverted P wave suggests atrial source near AV junction Nearly normal P waves suggest[fprmed.com] When this occurs in a pattern of bigeminy, the interpreter may be fooled into thinking that sinus bradycardia is present, because every other beat is a nonconducted PAC, and[healio.com] ECG Basics: Sinus Bradycardia With A Premature Atrial Contraction This strip shows an underlying sinus bradycardia with a rate less than 40/min.[ecgguru.com]

  • Acute Atrial Infarction

    Less than 1% (nine patients) had asystole, and 5% had sinus bradycardia following cardioversion.[heart.bmj.com] Sinus bradycardia Sinus bradycardia, the most common sinus node disturbance, is usually not treated unless there is hypotension or the heart rate is 50 beats/min.[merckmanuals.com] , sinoatrial dysfunction or heart block: Sinus bradycardia may be due to drugs, ischaemia or a vagal response.[patient.info]

  • Cardiomyopathy

    There are some signs of left atrial enlargement — leftward deviation of the P wave axis (positive P waves in I and aVL, inverted in III and aVF) and prolongation of the terminal[lifeinthefastlane.com] […] portion of the P wave in V1.[lifeinthefastlane.com] […] an interventricular conduction delay mimicking LBBB — however, this is not LBBB as the morphology is not typical and there are small Q waves in V5-6 ( the presence of Q waves[lifeinthefastlane.com]

  • Sinus Arrhythmia

    You might be tempted to call this sinus rhythm with premature atrial beats but the inverted P wave (P6) before R4 is not premature. So, this is not a PAC.[learningecg.blogspot.com] Next chapter Sinus Bradycardia Related chapters Normal automaticity and pacemaker cells in the heart Mechanisms of cardiac arrhythmias Normal sinus rhythm Sinus tachycardia[ecgwaves.com] O’Reilly and Krauthamer reported two patients whose cholecystitis was accompanied by “regular” bradycardia 50-60/min in one and sinus bradycardia of 38-42/min in the other[criticalcare.imedpub.com]

  • Torsades De Pointes

    Example 4 Torsades de Pointes: Sinus rhythm, or possibly ectopic atrial rhythm (biphasic / inverted P waves in lead II).[lifeinthefastlane.com] It may induce PACs and PVCs, sinus bradycardia, and atrial fibrillation.[ncbi.nlm.nih.gov] bradycardia or heart block.[ncbi.nlm.nih.gov]

  • Bradyarrhythmia

    This usually appears on an EKG with a normal QRS complex accompanied with an inverted P wave either before, during, or after the QRS complex. [3] An AV junctional escape is[en.wikipedia.org] What Causes Sinus Bradycardia/Bradyarrhythmia?[araalfaro415.wordpress.com] Sinus BRADYCARDIASINUS Bradycardia Bradyarrhythmia Symptoms Causes Diagnosis with Treatment Sinus arrhythmia often accompanies sinus bradycardia, but the P waves have a[medicscientist.com]

  • Flecainide

    The long PR interval, 1:1 atrioventricular conduction and inverted P waves in leads II, III, and aVF consistent with permanent junctional reciprocating tachycardia are to[annalspc.com] Flecainide is contraindicated in patients with sick sinus syndrome. It causes sinus bradycardia, sinus pause, or sinus arrest.[mayomedicallaboratories.com] Case 1 A 66-year-old female patient who had a history of paroxysmal AF, sinus bradycardia, and hypertension. She was started on flecainide 2 years ago.[innovationsincrm.com]

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