Atrial flutter EKG examples: Difference between revisions
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Shown below is an electrocardiogram of a patient being treated with an external cardioverter/defibrillator for atrial flutter. The patient is under general anesthesia and two shocks were given, the first at 50 joules and the second at 100 joules. | Shown below is an electrocardiogram of a patient being treated with an external cardioverter/defibrillator for atrial flutter. The patient is under general anesthesia and two shocks were given, the first at 50 joules and the second at 100 joules. | ||
[[Image:Atrial Flutter.jpg|center|800px]] | [[Image:Atrial Flutter.jpg|center|800px]] | ||
Copyleft image obtained courtesy of ECGpedia, | |||
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Revision as of 16:35, 23 October 2012
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2]
For the main page on atrial flutter, click here.
Atrial flutter EKG examples
Shown below is an electrocardiogram of a 2:1 atrial flutter.
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:ECG_Aflutt.jpg
Shown below is an electrocardiogram of a 3:1 atrial flutter.
Shown below is an electrocardiogram of a 4:1 atrial flutter.
Shown below is an electrocardiogram of atrial flutter with right bundle branch block demonstrated by Rsr' pattern in leads V1, V2, and V3.
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page
Shown below is an electrocardiogram of an 82 year old man with a history of lung disease and renal failure. At the time of this recording the patient was on iron, lasix, and bronchodilators. The EKG shows a regular rhythm at a rate of 141/min. This patient had been in atrial fibrillation in the past and the rhythm here is probably atrial flutter with 2:1 block although no flutter waves are seen. The QRS duration is widened at 105 ms and the tall R waves in V5 and S waves in V1 and V2 and the ST depression in the absence of digoxin suggest left ventricular hypertrophy. The QRS is too narrow for ventricular tachycardia and the brief R wave in V2 with the clean down-stroke of the V2, S wave argue against a ventricular origin. The patient was placed on digoxin with a slowing of the ventricular rate and a rhythm that was clearly atrial fibrillation and with a QRS with the same morphology.
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:E338.jpg
Shown below is an electrocardiogram of a patient being treated with an external cardioverter/defibrillator for atrial flutter. The patient is under general anesthesia and two shocks were given, the first at 50 joules and the second at 100 joules.
Copyleft image obtained courtesy of ECGpedia,
The cardiogram show spontaneous termination of atrial flutter. The flutter waves can be seen deforming the QRS especially in leads II and III.
The recording below shows the spontaneous termination of atrial flutter. The termination occurs just at the first lead switch (e.g. lead I to aVR). Note that the QRS does not change but is deformed by the large flutter waves that are running at a rate of about 300/min. The QRS voltages (minus the flutter waves) is low in the precordial leads (< 5 mm).
The rhythm below is atrial flutter with flutter waves seen best in the inferior leads and in leads V1 to V3. The atrial rate is about 250/min. The QRS is wide (>120ms) an there is a tall R' wave in V1 and a shallow S in V6. The axis of the QRS seems normal. The EKG shows a right bundle branch block.
Shown below is an example of EKG showing atrial tachycardia at about 240/min. (slow atrial flutter?) with 2:1 A/V block. The atrial activity is best seen in leads V1, III and aVF.
Shown below is an electrocardiogram of an atrial flutter in a patient with WPW syndrome. There is 1:1 conduction down a bypass tract.
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:ECG_Aflutt_1to1.jpg
