<s>
Ashman	B-Algorithm
phenomenon	I-Algorithm
,	O
also	O
known	O
as	O
Ashman	O
beats	O
,	O
describes	O
a	O
particular	O
type	O
of	O
wide	O
QRS	O
complex	O
,	O
often	O
seen	O
isolated	O
that	O
is	O
typically	O
seen	O
in	O
atrial	B-Application
fibrillation	I-Application
.	O
</s>
<s>
It	O
is	O
more	O
often	O
misinterpreted	O
as	O
a	O
premature	B-Error_Name
ventricular	I-Error_Name
complex	I-Error_Name
.	O
</s>
<s>
This	O
short	O
QRS	O
complex	O
typically	O
has	O
a	O
right	B-Algorithm
bundle	I-Algorithm
branch	I-Algorithm
block	I-Algorithm
morphology	O
and	O
represents	O
an	O
aberrantly	O
conducted	O
complex	O
that	O
originates	O
above	O
the	O
AV	O
node	O
,	O
rather	O
than	O
a	O
complex	O
that	O
originates	O
in	O
either	O
the	O
right	O
or	O
left	O
ventricle	O
.	O
</s>
<s>
Because	O
the	O
refractory	O
period	O
of	O
the	O
right	O
bundle	O
branch	O
is	O
longer	O
than	O
the	O
left	O
,	O
the	O
right	O
bundle	O
will	O
still	O
be	O
in	O
the	O
refractory	O
period	O
when	O
the	O
supraventricular	O
impulse	O
reaches	O
the	O
His-Purkinje	O
system	O
,	O
resulting	O
in	O
a	O
complex	O
with	O
right	B-Algorithm
bundle	I-Algorithm
branch	I-Algorithm
block	I-Algorithm
morphology	O
.	O
</s>
