2. PALPITATION
• Defined as a “thumping,” “pounding,” or
“fluttering” sensation in the chest
• This sensation can be either intermittent or
sustained and either regular or irregular
• Unusual awareness of the heartbeat
• Palpitations are often noted when the patient
is quietly resting, during which time other
stimuli are minimal
• Palpitations that are positional generally
reflect a structural process within(e.g., atrial
myxoma) or adjacent to (e.g., mediastinal
mass) the heart
3. NATURE OF PALPITATIONS
Feature Suggests
Heart misses and thumps Ectopic beats
Worse at rest Ectopic beats
Very fast regular SVT/VT
Sudden onset SVT/VT
Offset with vagal manoeuvres SVT
Fast and irregular AF and atrial flutter with varying block
Forceful and regular –not fast Awareness of sinus rhythm (anxiety)
Severe dizziness or syncope VT or Bradyarrhythmias
Pre-existing heart failure VT
4. PATHOPHYSIOLOGY
• Augmentation of heart contractility
• Physiological augmentation
• Exercising strongly and over nervous
• After drinking coffee,tea,alcohol
• Taking medicine such as Atropine,Ephedrine,Aminophylline
• Pathological augmentation
• Ventricular hypertrophy
• Preload or afterload increase hypertrophy augmentation of
contractilitypalpitation
• Thyrotoxicosis : basic metabolism amplify &sympathetic nerve
exciteheart rate increases
• Anemia: hypoxia heart rate increases
• Fever: basic metabolism amplify
• Hypoglycemia: palpitation due to release of catecholamine
• Arrhythmia
• Cardiac neurosis : turbulence of sympathetic nerve and
pneumogastric nerve
9. PSYCHIATRIC CAUSES
• Panic attacks
• Anxiety
• Somatization
• Patients with psychiatric causes for
palpitations more commonly report a longer
duration of the sensation (>15 min) and other
accompanying symptoms than do patients
with other causes
12. APPROACH TO PALPITAIONS
• STEP 1
• Is palpitation continuous or intermittent?
• Intermittent palpitation are commonly caused
by premature atrial or ventricular contractions
• STEP 2
• Is heart beat regular or irregular
• Regular,sustained palpitations can be caused
by SVT and VT
• Irregular,sustained palpitations can be
caused by Atrial fibrillation
13. • STEP 3
• What is the heart rate ?
• STEP 4
• Does palpitations occur in discrete attacks?
• Is onset abrupt?
• How do attacks terminate?
• Ventricular arrhythmias are of sudden onset
• Holding breath or vagal manoeuvres
decrease palpitations in SVT
14. • STEP 5
• Are there any associated symptoms?
• Chest pain-Arrhythmogenic MI
• Dyspnoea-Heart failure due to arrhythmias
• Syncope-Low cardiac output during
arrhythmias,hypoglycemia,Pheochromocyto
a
• Polyuria-SVT
• Sweating-Anxiety,Hypoglycemia
• Diarrhoea-Thyrotoxicosis
15. • STEP 6
• Are there any precipitating factors?
• Exercise,stress,alcohol intake,drugs
• STEP 7
• Is there a history of structural heart
disease,coronary heart disease,valvular
heart disease?
16. EXAMINATION
• Pallor
• Thyroid swelling
• Pulse
• Blood pressure
• Heart murmurs
• Signs of left/right ventricular
dysfunction
• Features of endocrine abnormality
17.
18. INVESTIGATIONS
• CBC
• Thyroid function test
• RBS
• Resting ECG
• Exercise ECG (If exertion is known to induce
arrhythmia and accompanying palpitations)
• Continuous ECG monitoring (Holter)
• Telephonic monitoring
• Loop recordings- External or Implantable
• 2D ECHO
19.
20.
21.
22.
23.
24. MANAGEMENT
• Beta blocker – Symptomatic atrial or
ventricular premature contractions
• Sustained arrhythmias –Pharmacologic or
Invasive electrophysiologic study
• Treat underlying cause for the noncardiac,
psychiatric or nonarrhythmia cardiac
etiology
• Abstain from caffeine,alcohol,foods or
stressful situations that appear to trigger
palpitations