Right bundle branch block EKG examples: Difference between revisions

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Below is an electrocardiogram showing right bundle branch block.
Shown below is an EKG with an rsr' pattern in leads [[Electrocardiogram#Precordial|V1]], [[Electrocardiogram#Precordial|V2]], and[[Electrocardiogram#Precordial|V3]] depicting a right bundle branch block with [[left axis deviation]].


[[File:Right bundle branch block 4.jpg|center|800px]]
[[File:Right bundle branch block 4.jpg|center|800px]]
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:ECG_RBTB_LAtrD.jpg
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Below is an electrocardiogram showing right bundle branch block.
Shown below is an EKG with an RSR' pattern in leads [[Electrocardiogram#Precordial|V2]] and [[Electrocardiogram#Precordial|V3]] depicting a right bundle branch block with [[QRS axis and voltage#Left Axis Deviation (-30 to -90)|left axis deviation.]]


[[File:Right bundle branch block 5.png|center|800px]]
[[File:Right bundle branch block 5.png|center|800px]]
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page
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Below is an electrocardiogram showing right bundle branch block.
Shown below is an EKG with an RSR' pattern in leads [[Electrocardiogram#Precordial|V1]], [[Electrocardiogram#Precordial|V2]],[[Electrocardiogram#Precordial|V3]], and [[Electrocardiogram#Augmented lead|aVR]] depicting a right bundle branch block.


[[File:Right bundle branch block 6 .jpg|center|800px]]  
[[File:Right bundle branch block 6 .jpg|center|800px]]
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page
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Below is an electrocardiogram showing right bundle branch block.
Shown below is an EKG with an rSR' pattern in leads [[Electrocardiogram#Limb|III]], [[Electrocardiogram#Augmented lead|aVR]], [[Electrocardiogram#Augmented lead|aVF]], [[Electrocardiogram#Precordial|V1]], [[Electrocardiogram#Precordial|V2]], and [[Electrocardiogram#Precordial|V3]] depicting a right bundle branch block.
 
[[File:Right bundle branch block 7 .jpg|center|800px]]
[[File:Right bundle branch block 7 .jpg|center|800px]]
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page
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Below is an electrocardiogram showing right bundle branch block.
Shown below is an EKG with an RSR' pattern in leads [[Electrocardiogram#Precordial|V1]] and [[Electrocardiogram#Precordial|V2]], and a qRs pattern in[[Electrocardiogram#Precordial|V6]]. There is slurring of the [[S wave]] in leads [[Electrocardiogram#Limb|I]] and [[Electrocardiogram#Precordial|V6]]. All these patterns suggest right bundle branch block.
[[File:Right bundle branch block 8 .jpg|center|800px]]
[[File:Right bundle branch block 8 .jpg|center|800px]]
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page
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Below is an electrocardiogram showing right bundle branch block.
Shown below is an EKG with an rSR' pattern in leads [[Electrocardiogram#Limb|III]] and [[Electrocardiogram#Precordial|V1]]. There is slurring of the [[S wave]]in leads [[Electrocardiogram#Limb|I]] and [[Electrocardiogram#Precordial|V6]]. These findings are consistent with right bundle branch block.


[[File:Right bundle branch block 9 .jpg|center|800px]]
[[File:Right bundle branch block 9 .jpg|center|800px]]
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page
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Shown below is an EKG with an RSR' pattern in lead [[Electrocardiogram#Precordial|V1]], an RSr' pattern in lead [[Electrocardiogram#Precordial|V2]], and [[wide QRS complexes]] in leads [[Electrocardiogram#Precordial|V1]] and [[Electrocardiogram#Precordial|V2]] depicting a right bundle branch block. There is also [[PR prolongation]] which is constant indicating [[first degree heart block]].
Below is an electrocardiogram showing right bundle branch block with [[first degree AV block]].


[[File:Right bundle branch block 11 .jpg|center|800px]]
[[File:Right bundle branch block 11 .jpg|center|800px]]
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page
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Below is an electrocardiogram showing right bundle branch block with right atrial hypertrophy.
Shown below is an EKG with an RSR' pattern in leads [[Electrocardiogram#Precordial|V1]] and [[Electrocardiogram#Precordial|V2]] indicating a right bundle branch block. [[Tall P waves]] seen in leads [[Electrocardiogram#Limb|II]] and [[Electrocardiogram#Limb|III]] indicate [[right atrial enlargement]].
[[File:Right bundle branch block 12 .jpg|center|800px]]
[[File:Right bundle branch block 12 .jpg|center|800px]]
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page
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Electrocardiogram of the same patient. Of note here is ST elevation in lead V4R.
Shown below is an EKG with an RSR' pattern in lead [[Electrocardiogram#Precordial|V2]] suggesting right bundle branch block. There is [[ST elevation]] in the[[Electrocardiogram#Precordial|precordial leads]] suggesting [[STEMI]]. [[Heart rate]] is less than 60 suggesting [[bradycardia]]. There is [[left axis deviation]]. In addition, there is [[PR prolongation]] which is constant suggesting [[first degree heart block]].
[[File:Right bundle branch block 14.jpg|center|800px]]
[[File:Right bundle branch block 14.jpg|center|800px]]
 
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:RBBB_inf_MI_V4R.jpg
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The same patient before [[acute MI]] developed. Horizontal axis shown.
Shown below is an EKG with an RSR' pattern in leads [[Electrocardiogram#Precordial|V1]], [[Electrocardiogram#Precordial|V2]],[[Electrocardiogram#Precordial|V3]], [[Electrocardiogram#Precordial|V4]], [[Electrocardiogram#Augmented lead|aVF]], and [[Electrocardiogram#Limb|III]] suggesting right bundle branch block. There is [[left axis deviation]]. In addition, the [[PR prolongation|PR interval is prolonged]] and constant suggesting [[first degree heart block]].
[[File:Right bundle branch block 15.jpg|center|800px]]
[[File:Right bundle branch block 15.jpg|center|800px]]
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:RBBB_inf_MI_baseline.jpg
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Below is an electrocardiogram of a patient with [[supraventricular tachycardia]] with [[RBBB]].
Shown below is an EKG with an rsR' pattern in leads [[Electrocardiogram#Precordial|V1]] and [[Electrocardiogram#Precordial|V2]] suggesting right bundle branch block. The EKG also shows [[supraventricular tachycardia]].


[[File:Right bundle branch block 16.jpg|center|800px]]
[[File:Right bundle branch block 16.jpg|center|800px]]
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page
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Below is an electrocardiogram of a patient with old [[Acute MI|Anterior MI]] with [[RBBB]].
Shown below is an EKG with an rsR' pattern in leads [[Electrocardiogram#Limb|III]] and [[Electrocardiogram#Precordial|V1]], and qR' pattern in leads[[Electrocardiogram#Precordial|V2]] and [[Electrocardiogram#Precordial|V3]] suggesting right bundle branch block. The EKG also shows an old [[Acute MI|anterior MI]].


[[File:Right bundle branch block 17.jpg||center|800px]].
[[File:Right bundle branch block 17.jpg||center|800px]].
 
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page
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Below is an electrocardiogram of a patient with Old [[Acute MI|Inferior MI]] and [[Acute MI|Anterior MI]] with [[RBBB]] and [[LAFB]].
Shown below is an EKG with an rsR' pattern in leads [[Electrocardiogram#Limb|III]], [[Electrocardiogram#Limb|aVR]] and [[Electrocardiogram#Precordial|V1]]suggesting right bundle branch block. The EKG also shows an old [[Acute MI|inferior MI]], [[Acute MI|anterior MI]], and [[LAFB]].


[[File:Right bundle branch block 18.jpg|center|800px]]
[[File:Right bundle branch block 18.jpg|center|800px]]
 
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page
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Below is an electrocardiogram of a patient with Old [[Acute MI|Inferior MI]] with [[RBBB]]
Shown below is an EKG with an rsR' pattern in lead [[Electrocardiogram#Precordial|V1]] suggesting right bundle branch block. The EKG also shows an old [[Acute MI|inferior MI]].


[[File:Right bundle branch block 19.jpg|center|800px]]
[[File:Right bundle branch block 19.jpg|center|800px]]
 
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page
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Below is an electrocardiogram of a patient with [[RBBB]] and [[LAFB]].
Shown below is an EKG with an rsR' pattern in lead [[Electrocardiogram#Precordial|V1]] suggesting RBBB and there is a [[left axis deviation]] suggesting[[LAFB]].


[[File:Right bundle branch block 20.jpg|center|800px]]
[[File:Right bundle branch block 20.jpg|center|800px]]
 
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page
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Below is an electrocardiogram of a patient with [[RBBB]], [[LAFB]] and [[First Degree AV Block]].
Shown below is an EKG with an rsR' pattern in lead [[Electrocardiogram#Precordial|V1]] suggesting RBBB and there is a [[left axis deviation]] suggesting[[LAFB]]. In addition, the [[PR prolongation|PR interval is prolonged]] and constant suggesting [[first degree heart block]].


[[File:Right bundle branch block 21.jpg|center|800px]]
[[File:Right bundle branch block 21.jpg|center|800px]]
 
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page
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Below is an electrocardiogram of a patient with [[RBBB]] and [[LAFB]].
Shown below is an EKG with an rsR' pattern in lead [[Electrocardiogram#Precordial|V1]], [[Electrocardiogram#Precordial|V2]], and[[Electrocardiogram#Precordial|V3]] suggesting RBBB. The EKG also shows a [[left axis deviation]] suggesting [[LAFB]].
[[File:Right bundle branch block 22.jpg|center|800px]]
[[File:Right bundle branch block 22.jpg|center|800px]]
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page
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Below is an electrocardiogram of a patient with [[RBBB]] and [[LAFB]].
Shown below is an EKG with a slurred S wave in leads [[Electrocardiogram#Limb|III]], [[Electrocardiogram#Limb|aVR]], [[Electrocardiogram#Limb|aVF]],[[Electrocardiogram#Precordial|V1]], and [[Electrocardiogram#Precordial|V2]] suggesting RBBB. The EKG also shows a [[left axis deviation]] suggesting [[LAFB]].
[[File:Right bundle branch block 23.jpg|center|800px]]
[[File:Right bundle branch block 23.jpg|center|800px]]
 
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page
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Below is an electrocardiogram of a patient with atrial fibrillation with a controlled ventricular rate. The QRS is wide (>120ms) and has a tall R' in V1 and an S wave in V6. There is a left axis deviation. The cardiogram suggests a right bundle branch block and a left anterior hemiblock. The patient has a cardiomyopathy with an ejection fraction of 20%.
Shown below is an EKG depicting [[atrial fibrillation]] with a controlled ventricular rate. The QRS is wide (>120ms) and has a tall R' in[[Electrocardiogram#Precordial|V1]] and an S wave in [[Electrocardiogram#Precordial|V6]]. There is a [[left axis deviation]]. The cardiogram suggests a right bundle branch block and a [[left anterior hemiblock]]. The patient has a [[cardiomyopathy]] with an [[ejection fraction]] of 20%.


[[File: Right bundle branch block 24.jpg|center|800px]]
[[File: Right bundle branch block 24.jpg|center|800px]]
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:E243.jpg


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The cardiogram below shows sinus rhythm with a normal [[PR interval]] and a prolonged QRS interval (>120ms). There is a conduction abnormality best described as a right bundle branch block due to the rsR' wave in V1. Note the S wave in V6 which is due to the RBBB is smaller than the R wave in V6. The axis of the QRS is difficult to determine, but one usually looks at the first 60 ms. (1 1/2 small squares) to determine the axis with a RBBB. If the axis of the first 60 ms. of the QRS is more than 90 degrees and there is an rS in lead I and a Q in lead III then on would consider a left [[posterior fasicular block]]. This is not the case here.
Shown below is an EKG depicting [[sinus rhythm]] with a normal [[PR interval]] and a prolonged [[QRS interval]] (>120ms). There is a conduction abnormality best described as a right bundle branch block due to the rsR' wave in [[Electrocardiogram#Precordial|V1]]. Note the S wave in [[Electrocardiogram#Precordial|V6]]which is due to the RBBB is smaller than the R wave in [[Electrocardiogram#Precordial|V6]]. The axis of the QRS is difficult to determine, but one usually looks at the first 60 ms. (1 1/2 small squares) to determine the axis with a RBBB. If the axis of the first 60 ms. of the QRS is more than 90 degrees and there is an rS in lead [[Electrocardiogram#Limb|I]] and a Q in lead [[Electrocardiogram#Limb|III]] then one would consider a [[left posterior fascicular block]]. This is not the case here.
[[File:Right bundle branch block 25.jpg|center|800px]]
[[File:Right bundle branch block 25.jpg|center|800px]]
 
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:E196.jpg
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Below is an electrocardiogram of patient with [[RBBB]]
[[File:Right bundle branch block 26.jpg|center|800px]]


==Sources==
==Sources==

Revision as of 15:16, 6 February 2013

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

For the main page on right bundle branch block, click here.

EKG examples

EKG below is from an elderly woman who had previously undergone surgery for recurrent ventricular tachycardia. She was being treated with Tambacor and metoprolol. The cardiogram shows sinus rhythm with a wide QRS of 159ms consistent with a RBBB and a rightward axis suggesting right posterior hemi-block. The PR interval is slightly prolonged at 2121ms. The poor R wave progression seen best in lead V2 suggests previous anterior wall MI.


EKG below is a recording from an older man in the surgical intensive care unit. He was recovering from a motor vehicle accident where he sustained a chest injury from his seat belt. The rhythm is sinus rhythm with a prolonged p wave duration in lead III( >140ms) and a pronounced terminal negativity in V1 suggestive of left atrial abnormality. The QRS is wide with a duration of 137ms and a superior and right ward axis. There is an RSR in V1 and the S wave is greater than the R in V6. This is an unusual pattern for aberrance and is more in keeping with ventricular ectopy. In this case, this appears to be a right bundle branch block with a possible left posterior hemi-block.

Of note, in spite of this conduction disturbance the patient was able to sustain reentrant supraventricular tachycaridas requiring intravenous adenosine for termination.


Shown below is an EKG with an rsr' pattern in leads V1, V2, andV3 depicting a right bundle branch block with left axis deviation.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:ECG_RBTB_LAtrD.jpg


Shown below is an EKG with an RSR' pattern in leads V2 and V3 depicting a right bundle branch block with left axis deviation.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page


Shown below is an EKG with an RSR' pattern in leads V1, V2,V3, and aVR depicting a right bundle branch block.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page


Shown below is an EKG with an rSR' pattern in leads III, aVR, aVF, V1, V2, and V3 depicting a right bundle branch block.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page


Shown below is an EKG with an RSR' pattern in leads V1 and V2, and a qRs pattern inV6. There is slurring of the S wave in leads I and V6. All these patterns suggest right bundle branch block.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page


Shown below is an EKG with an rSR' pattern in leads III and V1. There is slurring of the S wavein leads I and V6. These findings are consistent with right bundle branch block.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page


Shown below is an EKG with an RSR' pattern in lead V1, an RSr' pattern in lead V2, and wide QRS complexes in leads V1 and V2 depicting a right bundle branch block. There is also PR prolongation which is constant indicating first degree heart block.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page


Shown below is an EKG with an RSR' pattern in leads V1 and V2 indicating a right bundle branch block. Tall P waves seen in leads II and III indicate right atrial enlargement.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page


Shown below is an EKG with an RSR' pattern in lead V2 suggesting right bundle branch block. There is ST elevation in theprecordial leads suggesting STEMI. Heart rate is less than 60 suggesting bradycardia. There is left axis deviation. In addition, there is PR prolongation which is constant suggesting first degree heart block.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:RBBB_inf_MI_V4R.jpg


Shown below is an EKG with an RSR' pattern in leads V1, V2,V3, V4, aVF, and III suggesting right bundle branch block. There is left axis deviation. In addition, the PR interval is prolonged and constant suggesting first degree heart block.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:RBBB_inf_MI_baseline.jpg


Shown below is an EKG with an rsR' pattern in leads V1 and V2 suggesting right bundle branch block. The EKG also shows supraventricular tachycardia.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page


Shown below is an EKG with an rsR' pattern in leads III and V1, and qR' pattern in leadsV2 and V3 suggesting right bundle branch block. The EKG also shows an old anterior MI.

.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page


Shown below is an EKG with an rsR' pattern in leads III, aVR and V1suggesting right bundle branch block. The EKG also shows an old inferior MI, anterior MI, and LAFB.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page


Shown below is an EKG with an rsR' pattern in lead V1 suggesting right bundle branch block. The EKG also shows an old inferior MI.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page


Shown below is an EKG with an rsR' pattern in lead V1 suggesting RBBB and there is a left axis deviation suggestingLAFB.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page


Shown below is an EKG with an rsR' pattern in lead V1 suggesting RBBB and there is a left axis deviation suggestingLAFB. In addition, the PR interval is prolonged and constant suggesting first degree heart block.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page


Shown below is an EKG with an rsR' pattern in lead V1, V2, andV3 suggesting RBBB. The EKG also shows a left axis deviation suggesting LAFB.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page


Shown below is an EKG with a slurred S wave in leads III, aVR, aVF,V1, and V2 suggesting RBBB. The EKG also shows a left axis deviation suggesting LAFB.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/Main_Page


Shown below is an EKG depicting atrial fibrillation with a controlled ventricular rate. The QRS is wide (>120ms) and has a tall R' inV1 and an S wave in V6. There is a left axis deviation. The cardiogram suggests a right bundle branch block and a left anterior hemiblock. The patient has a cardiomyopathy with an ejection fraction of 20%.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:E243.jpg


Shown below is an EKG depicting sinus rhythm with a normal PR interval and a prolonged QRS interval (>120ms). There is a conduction abnormality best described as a right bundle branch block due to the rsR' wave in V1. Note the S wave in V6which is due to the RBBB is smaller than the R wave in V6. The axis of the QRS is difficult to determine, but one usually looks at the first 60 ms. (1 1/2 small squares) to determine the axis with a RBBB. If the axis of the first 60 ms. of the QRS is more than 90 degrees and there is an rS in lead I and a Q in lead III then one would consider a left posterior fascicular block. This is not the case here.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:E196.jpg


Sources

Copyleft images obtained courtesy of ECGpedia, http://en.ecgpedia.org/index.php?title=Special:NewFiles&offset=&limit=500.

References

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