Also found in: Dictionary, Thesaurus, Encyclopedia.
cessation of atrial contractions, marked by absence of atrial waves in the electrocardiogram.
Synonym(s): auricular standstill
atrial standstillA transient or permanent electrical atrial failure—and non-contractility of atria—which is seen in patients with familial amyloidosis and facioscapulohumeral dystrophy, possibly due to perineural infiltration.
Absent P waves.
Absent A waves.
Congenital atrial standstill is linked to a mutation of SCN5A, which encodes a voltage-gated sodium channel.
a·tri·al stand·still(ā'trē-ăl stand'stil)
Cessation of atrial contractions, marked by absence of atrial waves in the electrocardiogram.