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51 Possible Causes for Electrical Alternans, Pulsus Paradoxus

  • Cardiac Tamponade

    Electrical alternans – i.e the beat-to-beat variation i electrical amplitude – is the ECG hallmark of cardiac tamponade.[] Pulsus paradoxus Pulsus paradoxus (or paradoxical pulse) is an exaggeration ( 12 mm Hg or 9%) of the normal inspiratory decrease in systemic blood pressure.[] Electrical alternans consists of beat-to-beat shifts in the QRS complex due to swinging of the heart in a large effusion.[]

  • Pericardial Effusion

    Effusion Massive pericardial effusion produces a triad of: Low QRS voltage Tachycardia Electrical alternans ECG findings with Electrical alternans Electrical alternans occurs[] 3.3; 95% CI, 1.8-6.3), while a pulsus paradoxus of 10 mm Hg or less greatly lowers the likelihood (likelihood ratio, 0.03; 95% CI, 0.01-0.24).[] Electrical Alternans 5.[]

  • Malignant Pericardial Effusion

    For PEs of all sizes, the Se, Sp, PPV, and NPV for detecting cardiac tamponade were: low-voltage complexes (56%, 74%, 81%, 46%), electrical alternans (23%, 98%, 95%, 39%),[] This exaggerated fall in systolic blood pressure with inspiration is referred to as pulsus paradoxus.[] Pulsus paradoxus, defined as an inspiratory decrease of more than 10 mmHg in systolic pressure, is a rare but suggestive sign of pericardial effusion.[]

  • Pericarditis

    In cardiac tamponade, the ECG shows electrical alternans as the heart “floats” in relation to the recording leads.[] paradoxus.[] Electrical alternans is associated with variation in cardiac position (swinging heart).[]

  • Tuberculous Pericarditis

    Less frequently transient atrial fibrillation occurs in 4% of cases, and electrical alternans which is more specific of swinging heart and cardiac tamponade [ 9 ].[] Pulsus paradoxus: definition and relation to the severity of cardiac tamponade. Am Heart J 1988; 115:391–398. Bilchick KC, Wise RA.[] Splitting of the second heart sound in constrictive pericarditis, with observations on the mechanism of pulsus paradoxus. Am Heart J . 1962 ; 64 : 765–778.[]

  • Pulsus Alternans

    alternans and mechanical alternans are both associated with cardiac ischaemia and in the case of electrical alternans there is a strong link with serious ventricular arrhythmia[] Jul 26, '08 by robinbird , BSN, RN Pulsus Paradoxus or (pulse parodox) is an art.[] Both mechanical and electrical alternans disappeared with afterload reduction by nitroprusside treatment.[]

  • Aortic Dissection

    Electrical Alternans in Cardiac Tamponade Laboratory findings Lab findings in aortic dissection are variable and most are very non-specific.[] Cardiac tamponade may cause pulsus paradoxus and jugular venous distention. Pearls & Pitfalls Only about 20% of patients with aortic dissection have pulse deficits.[] Signs and symptoms of cardiac tamponade—including muffled or distant heart sounds, hypotension, jugular venous distention, and pulsus paradoxus—must be recognized early for[]

  • Post-Infarction Pericarditis

    alternans Electrical alternans in pericardial effusion varying QRS heights with each successive beat DMOC for pericardial effusion Echo![] paradoxus).[] EKG shows electrical alternans.[]

  • Pericardial Disorder

    C, Beat-to-beat variations in amplitude and contour of the QRS and ST-T complexes that characterize electrical alternans.[] paradoxus .[] Electrical alternans – i.e the beat-to-beat variation i electrical amplitude – is the ECG hallmark of cardiac tamponade.[]

  • Lateral Wall Myocardial Infarction

    Alternans, Ventricular Hypertrophy, Complete and Incomplete Right Bundle Branch Block, Left Anterior Fascicular Block, Left Posterior Fascicular Block, Complete and Incomplete[] paradoxus and pericardial friction rub may also be seen.3 A sign that your patient is experiencing a right ventricular myocardial infarction is a rapid and profound decrease[] Idioventricular Rhythm, Ventricular Fibrillation, AV Block, (1st Degree, 2nd Degree, and 3rd Degree), Wolff-Parkinson-White, AV Dissociation, Low Voltage, Axis Deviation, Electrical[]

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