Describe and interpret this ECG.
[expand title=”Interpretation”]
Rate:
Atrial = N/A
Ventricular = 155 (115 – 176) min-1
Rhythm:
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:
Nil
R wave progression:
Normal
LV Hypertrophy [Sokolow; SV1 + (RV5 or RV6) > 35mm) or RI + SIII > 25mm]?
No
RV Hypertrophy [R/S ratio V5 or V6 < 1 or R/S ratio V1 > 1 or S1S2S3 pattern]?
No
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:
Nil
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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