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64 Possible Causes for Inverted P Wave, Shock

  • 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[] Abstract INTRODUCTION: The role of extracorporeal support for patients with septic shock remains unclear.[] […] the clinical course of a 43-year-old woman in remission from diffuse large B-cell lymphoma after the chemotherapy including anthracyclines, who presented in cardiogenic shock[]

  • Spontaneous Pneumothorax

    An ECG was administered; findings indicated reversal of the arm leads (right axis deviation and inverted P waves in lead I), but there was no actual limb lead reversal present[] The features are varied as some patients have mild dyspnea while others develop sequelae such as shock and possibly death.[] In more severe cases, symptoms will develop rapidly and may lead to shock.[]

  • Supraventricular Tachycardia

    Inverted P waves are sometimes seen after the QRS complex. These are called retrograde p waves.[] , Cardiogenic/diagnosis* Shock, Cardiogenic/etiology Shock, Cardiogenic/therapy Shock, Hemorrhagic/diagnosis* Shock, Hemorrhagic/etiology Shock, Hemorrhagic/therapy Tachycardia[] waves may be non-identifiable, especially when the ventricular rate is high If P waves are present, they will likely be inverted in leads II, III, and aVf QRS complex duration[]

  • 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[] It was reverted to sinus rhythm by electrical shock.[] 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[]

  • Atrial Arrhythmia

    A total of 100% of the induced and spontaneous ventricular and atrial arrhythmias receiving shock therapy were reviewed as appropriate detection.[] Abstract Implantable atrial defibrillators (IAD) should provide pacing therapy whenever appropriate (ie, typical atrial flutter) to minimize shock-related patient discomfort[] One common treatment is electrical cardioversion, in which doctors administer a series of low-energy shocks to the heart muscle to nudge it back into rhythm.[]

  • Acute Atrial Infarction

    In the following hours the patient evolved into cardiogenic shock with a LVEF of 20%.[] Their occurrence often heralds signifi cant myocardial ischemia with ventricular dysfunction or cardiogenic shock and may, in themselves, cause congestive heart failure and[] […] ami/hf/shock with mcc 225 Cardiac defibrillator implant with cardiac catheterization without ami/hf/shock without mcc 226 Cardiac defibrillator implant without cardiac catheterization[]

  • Atrial Bigeminy

    P wave with a PRI 120ms.[] It involves giving the heart a controlled electric shock to try to restore a normal rhythm.[] This is visible on the ECG as an inverted P wave (“ retrograde P wave “), usually occurring after the QRS complex.[]

  • 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[] The shock delivered stops the heart momentarily and then allows the normal pacemaker of the heart to take over.[] PACS arising close to the AV node (“low atrial” ectopics) activate the atria retrogradely, producing an inverted P wave with a relatively short PR interval 120 ms (PR interval[]

  • Anomalies of Coronary Artery Origin

    Sudden death in young athletes is shocking because it is unexpected in these seemingly healthy individuals.[]

  • Ventricular Arrhythmia

    Example 4 Torsades de Pointes: Sinus rhythm, or possibly ectopic atrial rhythm (biphasic / inverted P waves in lead II).[] ICD interrogation records were evaluated for episodes of ventricular tachycardia (VT), ventricular fibrillation (VF), and appropriate ICD shock therapy.[] Our goal was to record the appropriate therapies, "Anti-tachycardia Therapy Pacing" (ATP) and shock events during the 18 months of follow-up and compare the incidence and[]

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