ECG Interpretation and Analysis
Added on 2021-04-21
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Electrocardiogram 1Electrocardiogram interpretation.Student’s nameInstitutional Affiliation
ECG interpretation2ECG 1 ( ECGimagejaiden1)Sinus rhythm with 75beaats per minute.Left axis deviation.P waves present normal, one for every QRS complex.PR interval is normal at 120ms.QRS complex, present, each preceded by a P wave. rSR pattern seen on lead II, V I and V II and V III.ST interval normal.T waves normal inverted at aVR and VI which is normal.Interpretation Bifascicular Block- Right Bundle Branch Block (RBBB) with left axis deviation.Analysis There is sinus rhythm with a rate of 75bpm (normal rhythm is 60-100 bpm). The cardiac axis is deviated to the left. The electrical depolarization wave is moving toward the left shown bythe positive R wave in lead I but negative in lead II and III. The PR interval is normal at 120 ms (normal PR interval 120-200 ms) with normal P waves as the P wave corresponds to one QRS complex. This shows each P wave is conducted leading to ventricular depolarization shown by a QRS complex. The QRS complex pattern shows right bundle branch block as shown by the rSR’ pattern in right ventricular leads VI and VII. In a right bundle block no conduction occurs in the right bundle branch but the septum is depolarized from right to left as usual causing an R wave inVI. Then excitation spreads to the left ventricle causing an S wave in VI. Due to faulty conduction the right ventricle depolarizes after the left causing a second R wave on VI. This explains the RSR pattern on VI and VII (Hampton, J. 2013). A right bundle block is however
ECG interpretation3associated with a normal cardiac axis hence due to the left axis deviation a bifascicular block is suspected. ECG 2 (ECGimagejaiden2)Sinus rhythm with 100 beats per minute.Cardiac axis normal.P wave present before each QRS complex.Prolonged PR interval at 160ms.QRS complex present each preceded by a P wave.QRS interval normal at 120ms. M pattern present with deep S waves deep at lead VI, V2. S waveabsent on lead V6ST segment elevated best seen at lead VI and V2.T wave inverted at lead I, II, VI, V2Interpretation Left Bundle Branch Block.Analysis There is sinus rhythm with a rate of 100bpm (normal rhythm is 60-100 bpm). The cardiac axis is normal. The electrical depolarization wave is moving toward lead I shown by positive R wave in lead I, lead II and III. The PR interval is normal at 160 ms (normal PR interval 120-200 ms) withnormal P waves as the P wave corresponds to one QRS complex. This shows each P wave is conducted leading to ventricular depolarization shown by a QRS complex. The QRS complex pattern shows left bundle branch block as shown by the M pattern in lead opposite to right ventricular leads VI and VII, and in left ventricular leads V6 and deep S waves in VI and VII. In left bundle block no conduction occurs down the left branch so the septum is depolarized from
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