sick sinus syndrome
A constellation of signs and symptoms which may include syncope, fatigue, dizziness, and alternating periods of bradycardia and atrial tachycardia, which is caused by sinoatrial node dysfunction.
MONDO:0000469
sinoatrial node disorder
is_a
MONDO:0002254
syndromic disease
is_a
SSS
exact
SPBC32H8.07