ECG

Summary

List of Conditions

Cardiac

• Arrhtymias

  • Ventricular tachycardias: Asystole , Torsades de Pointes (TdP) , VF, VT (Ventricular Tachycardia) 

  • Supraventricular tachycardias: Atrial Fibrillation (AF) , atrial flutter, SVT (supraventricular tachycardia) , Wolf Parkinson White (WPW) 

  • Bradycardia/ sudden collapse: Heart Block 

    • HOCM (Hypertrophic obstructive cardiomyopathy)  ,

    • Brugada Syndrome , 

    • Long QT Syndrome 

• Ischaemia: STEMI , NSTEMI , Unstable Angina , Angina 

• Everything else: 

  • Pericarditis , Pericardial Effusion & Tamponade

  • Takotsubo Cardiomyopathy 

  • Valvular heart disease

  • Congenital heart disease

Non Cardiac

• Electrolyte: HypoKalaemia , HyperKalaemia , HypoCalcaemia , HyperCalcaemia 

• Lung: Pulmonary Embolus , Pulmonary Hypertension (Pul HTN) 

• Nervous system: Subarachnoid Haemorrhage , Anorexia Nervosa 

• Toxicology: amitriptyline, betablockers, opioids

Specific waves

Reverse tick wave- digoxin toxicity

U wave- hypokalaemia

Delta wave- Wolf Parkinson White Syndrome

Epsilon potentials- arrhythmogenic right ventricular dysplasia (ARVC)

Resources and References

Written in 2025