Causes of palpitation

 1.Extrasystoles- Atrial, ventricular

2. Tachyarrhythmias- Atrial, ventricular

3. Endocrine -

Pheochromocytoma

Thyrotoxicosis

Hypoglycaemia

4. High output states- Anaemia, pyrexia,

Aortic regurgitation,

Patent ductus arteriosus

5. Drugs -Atropine, adrenaline,

aminophylline, thyroxine,

coffee, tea, alcohol

6. Psychogenic -Prolonged anxiety state

(Soldier’s heart, neuro￾circulatory asthenia,

Da Costa’s syndrome)

Referenca: Davidson