Causes
Clinical
features
Investigations
Therapy
Prognosis
|  | | | Prognosis |
Use the following clinical prediction rule to rank patients for risk of cardiac arrhythmia or death:
a
-
aged > 45
-
history of congestive heart failure
-
history of ventricular arrhythmias
-
abnormal ECG
-
AF or flutter, or multifocal atrial tachycardia
-
junctional or paced rhythm
-
frequent or repetitive PVC (including VT)
-
PR interval < 0.10 mm
-
Mobitz I with other abnormalities, Mobitz II or complete heart block
-
conduction disorder: left-axis deviation, bundle-branch block, intraventricular delay
-
ventricular hypertrophy
-
old myocardial infarction
|
risk factors
a
|
risk of arrhythmia within a year
|
risk of dying within a year
|
|
3+
|
high
|
high
|
|
2
|
medium
|
medium
|
|
1
|
low
|
low
|
|
0
|
low
|
low
|
Note:
Four factors can help predict arrhythmia and death
|
risk factors
a
|
arrhythmia within a year
(95% CI)
|
NNF
(95% CI)
|
death at 1 year
(95% CI)
|
NNF
(95% CI)
|
|
3+
|
45%
(29% to 62%)
|
2
(2 to 4)
|
27%
(12% to 43%)
|
4
(2 to 8)
|
|
2
|
18%
(12% to 25%)
|
5
(4 to 8)
|
16%
(10% to 22%)
|
6
(4 to 10)
|
|
1
|
6%
(2% to 11%)
|
15
(9 to 64)
|
8%
(3% to 14%)
|
12
(7 to 32)
|
|
0
|
3%
(0% to 7%)
|
30
(14 to infinity)
|
1%
(0% to 3%)
|
91
(31 to infinity)
|
|
internal medicine