5. Atrial flutter(심방조동)

Question 1

심방조동의 원인은?

Answer 1

single ectopic focus in right atrium

Question 2

atrial flutter의 EKG 특징은?

Answer 2

1. atrial bpm 250-350
2. ventricular bpm 150
3. atrial flutter waves
4. PR interval can’t be measured
5. 톱니모양

Question 3

atrial flutter의 임상특징은?

Answer 3

• high ventricular rate and loss of atrial kick
  1. CO 감소 -> HF
  2. stroke(loss of atrial kick에 의한 stasis of blood)
  3. atrial flutter 48시간 이상 지속시 Coumadin(Warfarin)사용하기

Question 4

atrial flutter의 치료는?

Answer 4

1. beta-blocker와 CCB를 통한 AV node block(ventricular rate decreas)
2. 항부정맥 약 이용(amiodarone, propafenone, ibutilide)
3. Electriacla cardioversion, radiofrequency catheter ablation