Atrial fibrillation predicts for acute ischaemic stroke
Atrial fibrillation predicts for severe stroke andearly death in patients with acute ischaemic stroke One of the commonest cardiac arrhythmia is atrial//fibrillation. The risk of thromoembolic complicationsfollowing atrial fibrillation is nearly seven timesmore than those with normal sinus rhythm. Previouslystudies have shown that AF is present in 15–21% ofpatients affected by strok
Atrial fibrillation predicts for severe stroke and
early death in patients with acute ischaemic stroke
One of the commonest cardiac arrhythmia is atrial//
fibrillation. The risk of thromoembolic complications
following atrial fibrillation is nearly seven times
more than those with normal sinus rhythm. Previously,
studies have shown that AF is present in 15–21% of
patients affected by stroke. The principle underlying
this fact is that a irregularly beating heart allows
blood to pool and clot. When these blood clots enter
general circulation they can lodge in blood vessels
of the brain and cause stroke.
A retrospective study was undertaken in North Japan
to assess whether AF in patients with acute ischemic
stroke is associated with severe stroke and early
death. 15 831 patients with acute ischemic stroke who
were registered over a period of one year in 26
hospitals of the Japan Multicenter Stroke
Investigators' Collaboration registry were analyzed.
The AF group which included both paroxysmal and
persistent AF as identified by ECG consisting of 3335
(21.1%) patients and the non-AF group consisting of
12 496 (78.9%) patients were analyzed for association
with severe stroke and early death . The study by
means of multivariate logistic regression analyses
found that female sex, advanced age, AF, and a history
of stroke were independent factors associated with
severe stroke while older age, AF, and NIHSS score at
admission as independent factors associated with early
death.
The study clearly identifies AF as a predictive factor
for both severe stroke and early death in acute
ischemic stroke. Secondary prevention of embolic
events by effective periodic evaluation following
atrial fibrillation and appropriate treatment assumes
crucial significance.
'"/>