Long QT syndrome

Question 1

normal QT interval

Answer 1

=0.35-0.44 sec

Question 2

Defect

Answer 2

Defective cardiac repolarization presented as Prolonged
QT interval in ECG

Question 3

Clinical:

Answer 3

palpitation , seizure , Recurrent episodes of
syncope & sudden Cardiac death

Question 4

MC complication of long QT

Answer 4

torsade point

Question 5

Etiology:

Answer 5

• Acquired
  : Hypo-magnesemia , Medication: Macrolides - -congenital
  : Romano-Ward syndrome, Jervell -Lange
  Nielsen syndrome

Question 6

Treatment:

Answer 6

1st line: Beta Blockers
Refractory cases → ICD implantation