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Medicine

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Cardiology

Question
38 out of 57
 

Treatment of asymptomatic bradycardia is:



A No treatment is required
B Give atropine

C Isoprenaline
D Cardiac pacing

Ans. A

No treatment required.

Extra Edge: Asymptomatic bradycardia requires no treatment. But patient having bradycardia with symptoms (fatigue, dizziness) should be treated by injection atrophine, or injection isoprenaline or pacemaker.

Sinus bradycardia: Rate <60.

Causes:

1. Physiologic :- Athletes,elderly person, during sleep,

2. Pathologic :- Vasovagal attacks, sick sinus syndrome, acute MI (esp. inferior) Q, drugsQ (Beta-blockers, digoxin, amiodarone, verapamil), hypothyroidism Q, hypothermia Q, increase intracranial pressure, Deep jaundice.

3. Bradycardia:If asymptomatic and rate <60b/mt, no treatment is required Q.

If rate <60bpm & patient is symptomatic, give atropine Q 0.6-1.2mg IV (up to maximum of 3mg).

If no response start an isoprenaline Q infusion or use temporary cardiac pacing Q.

4. Sick sinus syndrome: Sinus node dysfunction causes bradycardia Q sinus arrest Q sinoatrial block Q or SVT alternating with bradycardia/asystole (tachy-brady syndrome Q). Af and thromboembolism may occur. Pace if symptomatic.

Extra Edge:

Sinus tachycardia: Rate> 100

Causes:

1. Anaemia,

2. Exercise,

3. Hypovolemia,

4. Heart failure,

5. Pulmonary embolism,

6. Pregnancy, thyrotoxicosis.

Cardiology Flashcard List

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