關於 electrical alternans and pulsus alternans ，我們在網路上蒐集到這些相關的討論、資訊與評價

#11. Linkage Between Mechanical and Electrical Alternans in ...

Mechanical alternans (pulsus alternans) has been observed in patients with severe congestive heart failure. Visible T wave alternans ...

#12. Echocardiographic Demonstration of Electrical Alternans

由 S Billakanty 著作 · 2006 · 被引用 3 次 — ... pulsus paradoxus of 20 mm Hg, clear lungs, and distant heart sounds. The 12-lead ECG revealed sinus tachycardia and electrical alternans ...

#13. Electrical Alternans ECG - YouTube

The fundamental electrocardiographic sign of electrical alternans is the alternating height of consecutive QRS complexes.

#14. 2:1 Pulsus and Electrical Alternans during atrioventricular ...

Pulsus and Electrical Alternans during atrioventricular reciprocating tachycardia in a healthy young man: a Case report, HeartRhythm Case ...

#15. Electrical alternans and the onset of rate-induced pulsus ...

Pulsus alternans during acute ischaemia is associated with electrical alternans that can be out of phase in control and ischaemic areas. This could increase ...

#16. Striking electrical and mechanical alternans associated with ...

Examination revealed a regular tachycardia of 110 bpm, evidence of pulsus alternans and a blood pressure of 120/74, but was otherwise unremarkable. A routine ...

#17. Electrical Alternans and Vulnerability to Ventricular Arrhythmias

Background Although electrical alternans (alternating amplitude from beat to beat on the electrocardiogram) has been associated with ...

#18. ECG Findings in Massive Pericardial Effusion - LITFL

Massive pericardial effusion produces a characteristic ECG triad of low QRS voltage, tachycardia, and electrical alternans.

#19. Pregnancy as a rare cause of electrical alternans ... - MedCrave

Electrical alternans is a phenomenon defined as an alternating amplitude or axis of the QRS complexes, ST segment, P or T waves in electrocardiography.

#20. Pulsus alternans in a child with dilated cardiomyopathy

Pulsus alternans is a rare phenomenon of alternating strong and weak pulses that occurs with severe ventricular dysfunction. Although it can be ...

#21. 指紋— 臺北醫學大學 - Elsevier

指紋. 深入研究「Paroxysmal supraventricular tachycardia with QRS duration alternans, electrical alternans, and pulsus alternans but without cycle length ...

#22. Airiti Library華藝線上圖書館

Paroxysmal Supraventricular Tachycardia with QRS Duration Alternans, Electrical Alternans, and Pulsus Alternans but without Cycle Length Alternans.

#23. Biventricular Pulsus Alternans: “Stolen Pulses” Seen by ...

Biventricular Pulsus Alternans: “Stolen Pulses” Seen by Echocardiography in ... right bundle block without electrical alternans (Figure 1A).

#24. Pathophysiologic mechanisms of cardiac tamponade and ...

Pathophysiologic mechanisms of cardiac tamponade and pulsus alternans shown by ... of tamponade, including mechanical and electrical alternans.

#25. Electrical alternans due to large bilateral pleural effusion ...

A 53-year-old woman, with a history of breast cancer presented with acute respiratory failure (arterial oxygen saturation 87% while the ...

#26. Coexisting mechanical and electrical alternation in drug ...

In a study of responses to 123 doses in 50 dogs, 'true' pulsus alternans without measurable electrical alternation occurred most frequently.

#27. Influence of Positional Change on Pulsus Alternans - CHEST

described acoustic, mechanical, and electrical alternans in a subject with hemopericardium. In their case, QRS complexes, heart sounds, and carotid pulse ...

#28. Electrical alternans as a manifestation of pulmonary embolism

In cardiac tamponade, electrical alternans is due to a 2:1 pendular ... of cardiac tamponade and pulsus alternans shown by echocardiography.

#29. Electrical alternans and pulsus paradoxus - MDedge

Electrical Alternans and Pulsus Paradoxus. Ernest Lo, MD. 1. Xiushui Ren, MD. 2. Peter Y. Hui, MD. 2. 1 Division of Internal Medicine, California Pacific ...

#30. Study on Mechanical and Electrical Alternans - Full Text View

In patients with severe heart failure and aortic valve disease mechanical alternans or pulsus alternans (a condition in which there is a beat-to-beat ...

#31. Biventricular Pulsus Alternans in a Dog with Pulmonic ... - CASE

A resting six-lead ECG docu- mented regular sinus rhythm, right axis deviation, normal waveform durations, and no discernable electrical alternans. The dog ...

#32. Citations to this article (27) - The Journal of Clinical Investigation

2:1 Pulsus and Electrical Alternans during atrioventricular reciprocating tachycardia in a healthy young man: a Case report. N Martini, S Cannas, F Guglielmi, C ...

#33. Electrocardiographic Observations on the Mechanism of the ...

Paroxysmal Supraventricular Tachycardia with QRS Duration Alternans, Electrical Alternans, and Pulsus Alternans but without Cycle Length Alternans.

#34. Regional electromechanical alternans in anesthetized pig hearts

Electrical alternans always accompanied pulsus alternans. The phase of electrical alternans was not related to any measure of regional mechanical activity ...

#35. Extreme Pulsus Alternans with P Wave Alternans in a Child

Besides the extreme pulsus alternans, a P wave and a PP cycle length change were also observed. Both mechanical and electrical alternans ...

#36. Pericardial effusion and cardiac tamponade - AMBOSS

Sinus tachycardia · Low voltage QRS complexes · Electrical alternans: consecutive QRS complexes that alternate in height due to the swinging ...

#37. Cardiac Tamponade - Cardiovascular - Medbullets Step 1

low voltage; electrical alternans. variations in the height of the QRS ... also has pulsus paradoxus, but also presents with. Kussmaul sign.

#38. the ECG in pericardial effusion & cardiac tamponade

Electrical alternans – i.e the beat-to-beat variation i electrical amplitude ... Other frequent symptoms are pulsus paradoxus, pericardial friction sounds, ...

#39. Pulsus Alternans during General Anesthesia with Halothane

Pulsus alternans is a classic type of abnormal pulse. It can be defined as a regular alternation of pulse amplitude in which runs of weak and strong beats ...

#40. Paroxysmal Supraventricular Tachycardia with QRS Duration ...

It is proposed that the QRS duration alternans, electrical alternans and pulsus alternans during the paroxysmal supraventricular tachycardia ...

#41. Electrical alternans induced by a brief period of myocardial ...

Electrical alternans (EA) has not been fully studied in the current ... presence of beat-to-beat alternation (pulsus alternans) during EA.

#42. Biventricular Pulsus Alternans - Hindawi

Pulsus alternans is a rare hemodynamic condition characterized by beat-to-beat variability in systolic pressure. It is attributed to variations in stroke ...

#43. Cardiac tamponade - 心包填塞| 醫學影像學習園地 - 中國醫藥大學

Pulsus paradoxus ：正常情況下，吸氣時血壓會稍微降低，而呼氣時血壓會稍微上升，下降的正常範圍 ... EKG：sinus tachycardia、low voltage、Electrical alternans

#44. A Case Report | Cureus

Although pulsus alternans occurs mostly in severe heart failure, ... resulting from the electrical stimulation that leads to high calcium ...

#45. Cardiac Alternans Occurs through the Synergy of Voltage - MDPI

Pulsus alternans may lead to pulseless activity, i.e., when there is an electrical activity, but the heart either does not contract, or the contraction is ...

#46. Case 19 Question 2 | Learn the Heart - Healio

... tamponade include low voltage on the ECG and "electrical alternans" where ... tamponade is called "pulsus paradoxus" and can be measured non-invasively ...

#47. Total electrical alternans in a patient with tuberculous ...

Total electrical alternans is an uncommon electrocardio- ... 120 per minute and pulsus paradoxus was noted, all pulses being impalpable for 1-2 beat at the ...

#48. Electrical alternans - Dr. Johnson Francis, DM -

Electrical alternans totalis is seen in cardiac tamponade and is ... be associated with its mechanical counter part: pulsus alternans.

#49. Alternans and higher-order rhythms in an ionic model of a ...

K. Kataokaand R. Yoshimura, “Clinical and experimental studies on electrical alternans of ST-segment and T-wave in variant form of angina pectoris,” Resp.

#50. Pericardial effusion and electrical alternans

distended neck veins; distant cardiac sounds; pulsus paradoxus; ... seen three patients with electrical alternans on ECG and.

#51. A simple electrical-mechanical model of the heart applied to ...

tion in the surface ECG (electrical alternans) may be correlated ... regime of combined electrical-mechanical alternans during the ... pulsus alternans.

#52. 心包膜疾病 - 馬偕紀念醫院小兒心臟科衛教資訊

心包膜積水的心電圖則所有的導程均顯示低電位（low voltage）。另外亦可發現交替波(Electrical alternans)。 超音波. 心包膜積水在螢光幕下可見到心臟搏動（cardiac ...

#53. Electrical and mechanical alternans during ventricular ...

The distinct events of mechanical alternans and electrical alternans may be indicative of progressively ... Alternans; Cardiomyopathy; Electrical; Pulsus ...

#54. Electrophysiological Mechanisms Underlying T-Wave ...

Cardiac electrical alternans, first described by Lewis in 1910 (Cherry ... electrical alternans has been observed during simulated pulsus ...

#55. ECG Interpretation Review #83 (PSVT – AVNRT – AVRT

Clinical implications of these forms of electrical alternans in a patient with SVT ... Pulsus alternans — is a mechanical form of alternans.

#56. Mechanical Alternans in Patients With Chronic Heart Failure

electrical alternans has been considered to be related to ... felt that pulsus alternans must be strictly related to heart failure and to a poor prognosis.

#57. Pulsus Alternans |Causes |Signs & Symptoms - Nurseship.com

Unlike pulsus paradoxus and electrical alternans, pulsus alternans is an abnormality of the arterial pulse, where it alternates between ...

#58. Electrical Alternans in Cardiac Tamponade - Henry Ford ...

Electrical Alternans in Cardiac Tamponade. Andreas P. Niarchos, M.D.,*. Of nine patients with pericardial effusion due to various causes, four developed ...

#59. Download PDF - eScholarship.org

We were concerned that if we showed an ECG with electrical alternans, learners ... for jugular venous distention (JVD) or pulsus paradoxus.

#60. Critical Care Trauma Centre - | LHSC

Generally caused by severe left ventricular failure or pericardial effusion. The electrical equivalent of pulsus alternans. Triad of Percardial Effusion. ST ...

#61. Diagnosing Pericarditis - American Academy of Family ...

Patients also should be hospitalized if they have pulsus paradoxus, electrical alternans on the ECG, or a large pericardial effusion.

#62. Electrocardiogram Findings Associated With Malignant ...

The cardiac monitor demonstrated electrical alternans (Figure). ... The cardiology APRN assessed the pulsus paradoxus and determined it to ...

#63. Flip-Flop Heart - Mayo Clinic Proceedings

muffled heart sounds, a pulsus paradoxus of 30 mm Hg, and disappearance of the radial ... this article), responsible for the electrical alternans seen on.

#64. Tamponade - Carolinas EKG Blog - CMC COMPENDIUM

Does our patient have cardiac tamponade? • EKG does reveal sinus tachycardia, but not electrical alternans or low voltage. We relied on ...

#65. Pericardial tamponade - EMCrit Project

Pulsus paradoxus is the most useful of the traditional physical ... Electrical alternans (varying QRS amplitude from beat to beat) – seen ...

#66. A swinging heart in cardiac tamponade

An ECG demonstrated sinus rhythm with low voltage QRS complexes and electrical alternans (Figure 1). Echocardiography confirmed a large ...

#67. Results for pulsus alternans - GrepMed

diagnosis # clinical # management # cardiology # pocus # physicalexam # pulse # algorithm # echocardiogram # treatment # differential # video # ultrasound

#68. (PDF) Striking electrical and mechanical alternans associated ...

Striking electrical and mechanical alternans associated with cardiac tamponade ... A electrical alternans is seen in the presence of pulsus altern- routine ...

#69. Nonmechanical ST-Segment Alternans in Prinzmetal's Angina

THE PHENOMENON of electrical alternans of the ST seg- ment during periods of ST elevation in ... with mechanical alternans (pulsus alternans) (3). The fol-.

#70. Emcard2372 - emupdates

1186. Sonographic signs of tamponade / Electrical alternans in pericardial effusion / Pericardiocentesis complications // Where do most ...

#71. 9. 有關pulsus alternans 之敘述，下列何者正確？ A.一般..

有關pulsus alternans 之敘述，下列何者正確？ A.一般而言，皆與心電圖記錄的electrical alternans 同時出現B. 在嚴重左心衰竭病人身上出現時，代表心臟收縮力每次心跳 ...

#72. EMNote.org - Facebook

Electrical alternans Electrical alternans is an electrocardiographic phenomenon of alternation of QRS complex amplitude or axis between ...

#73. Electrical alternans - 메딕메디슨

EKG상 QRS amplitude가 변하는 것은 pulsus alterans가 아닌 electrical alterans로 기술하는 것이 옳다고 생각됩니다. 답변부탁드립니다.

#74. Bedside Cardiology - 第 53 頁 - Google 圖書結果

Note : There is no significance to the disappearance of pulsus alternans at rest ... Is electrical alternans ( alternating differences in QRS configuration ) ...

#75. Sapira's Art and Science of Bedside Diagnosis

However, in cases of congestive heart failure, the occurrence of electrical alternans with pulsus alternans has a serious prognosis.

#76. Electrical alternans - EKG MD

... QRS alternans have a pericardial effusion and only ~12% with pericardial effusions have electrical alternans), hypertension, coronary artery disease, ...

#77. Pulsus Paradoxus & Blood Pressure Measurement

Blood pressure is an important vital sign. Measurement errors are common so it is important to understand factors that affects results. Pulsus paradoxus is ...

#78. DallasEMed on Twitter: "Electrical alternans on the monitor in ...

Electrical alternans on the monitor in a pt c cardiac tamponade #UTSWEM #FOAM. Embedded video. 0:10. 287 views. 7:52 PM · Aug 7, ...

#79. Augmentation of electrical alternans with lowering of the heart rate in ...

Cokkinos DV, Kelesides C, Siaterlis J, Halimos E. Augmentation of electrical alternans with lowering of the heart rate in massive pericardial effusion: A ...

#80. Physical Diagnosis Secrets E-Book - 第 215 頁 - Google 圖書結果

First described by Traube in 1872, pulsus alternans is often associated with ... The clinical significance of electrical alternans is its association with ...

#81. Practical Cardiovascular Medicine - Google 圖書結果

This is electrical alternans secondary to tachyarrhythmia, ... and axis is not electrical alternans and correlates more with pulsus paradoxus (“electrical ...

#82. ECG from Basics to Essentials: Step by Step

Electrical alternans must be distinguished from mechanical alternans (e.g. pulsus alternans), although both may coexist. The definition should include the ...

#83. Mayo Clinic Cardiology Concise Textbook and Mayo Clinic ...

Pulsus alternans may be affected by alterations in venous return and may disappear as congestive heart failure progresses. Electrical alternans (alternating ...