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Review
. 2002 Jun 1;324(7349):1320-3.
doi: 10.1136/bmj.324.7349.1320.

ABC of clinical electrocardiography: Conditions not primarily affecting the heart

Corey Slovis  1 , Richard Jenkins
Affiliations
Review

ABC of clinical electrocardiography: Conditions not primarily affecting the heart

Corey Slovis et al. BMJ. .

Erratum in

  • BMJ 2002 Aug 3;325(7358):259
  • BMJ. 2007 May 26;334(7603). doi: 10.1136/bmj.39219.615243.AE
No abstract available

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Figures

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Figure
Serial changes in hyperkalaemia
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Figure
Serial changes in patient with renal failure receiving treatment for hyperkalaemia. As potassium concentration drops, the electrocardiogram changes: 9.3 mmol/l, very broad QRS complexes (A); 7.9 mmol/l, wide QRS complexes with peaked T waves and absent P waves (B); 7.2 mmol/l, QRS complex continues to narrow and T waves diminish in size (C)
Figure
Figure
Broad complex tachycardia with a potassium concentration of 8.4 mmol/l (A); after treatment, narrower complexes with peaked T waves (B)
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Figure
Left: Diagram of electrocardiographic changes associated with hypokalaemia. Right: Electrocardiogram showing prominent U wave, potassium concentration 2.5 mmol/l (A) and massive U waves with ST depression and flat T waves, potassium concentration 1.6 mmol/l (B)
Figure
Figure
Sinus bradycardia, with a J wave, in a patient with hypothermia—core temperature 29°C (note the shivering artefact)
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Figure
Left: Diagram of electrocardiographic changes associated with thyrotoxicosis. Right: Sinus tachycardia in patient with thyrotoxicosis
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Figure
Top: Diagram of electrocardiographic changes associated with hypothyroidism. Bottom: Bradycardia (note small QRS complexes and inverted T waves) in patient with hypothyroidism
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Figure
Short QT interval in patient with hypocalcaemia (calcium concentration 4 mmol/l)
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Figure
Massive T wave inversion and QT prolongation associated with subarachnoid haemorrhage
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Figure
Electrocardiographic artefacts—“shivering artefact” in patient with anterior myocardial infarction (top) and electrical interference simulating tachycardia (bottom)
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