ECG #16

Describe and interpret this ECG.

ECG #16

[expand title=”Interpretation”]



Atrial = N/A

Ventricular = 155 (115 – 176) min-1


Atrial fibrillation

P waves:  

Duration = N/A

Amplitude = N/A

PR interval:

Duration =  N/A

Morphology = N/A

QRS complex:

Duration = 86 ms

Axis = 7°

Q Waves:


R wave progression:


LV Hypertrophy [Sokolow; SV1 + (RV5 or RV6) > 35mm) or RI + SIII > 25mm]?


RV Hypertrophy [R/S ratio V5 or V6 < 1 or R/S ratio V1 > 1 or S1S2S3 pattern]?


ST segments:

Duration = 70 ms

Morphology = slight sagging depression I, V4, V5

T waves:

Duration = 170 ms

Morphology = inversion aVF

QT interval:

QT duration = 308 ms

QTc duration = 494 ms

Additional comments:


Interpretation: This 12-lead electrocardiogram shows atrial fibrillation with a rapid ventricular response rate. There are no significant ischaemic changes. The elevated ventricular rate is suggestive of a recent onset. or a secondary underlying process such as infection/sepsis. Management would depend upon the clinical situation.


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