Sokolow-Lyon
index:
There are two
criteria with these widely used
indices:
* Sum of S
wave in V1 and R wave in V5 or
V6 >/= 3.5 mV (35 mm)
and/or
* R wave in
aVL >/= 1.1 mV (11 mm)
Romhilt-Estes
point score system:
Probable left
ventricular hypertrophy is
diagnosed if 4 points are
present and definite left
ventricular hypertrophy is
diagnosed if 5 or more points
are present.
|
Criterion |
Points |
|
Any limb
R wave or S wave >/=2.0 mV
(20 mm)
OR S
in V1 or S in V2 >/= 3.0 mV
(30 mm)
OR R
in V5 or R in V6 >/= 3.0 mV
(30 mm) |
3 |
|
ST-T wave
changes typical of LVH
Taking
digitalis
Not
taking digitalis |
1
3 |
|
Left
atrial abnormality
P
terminal force in V1 is 1 mm
or more in depth with a
duration >/= 40 ms (0.04
sec) |
3 |
|
Left axis
deviation >/= -30ª |
2 |
|
QRS
duration >/= 90 ms |
1 |
|
Intrinsicoid deflection in
V5 or V6 >/= 50 ms (0.05
sec) * |
1 |
*
Intrinsicoid deflection is
defined as interval between
beginning of QRS interval and
the peak of the R wave
Cornell
voltage criteria
– These more recent criteria are
based upon echocardiographic
correlative studies designed to
detect a left ventricular mass
index >132 g/m2 in men and >109
g/m2 in women.
Cornell
voltage-duration measurement
Sensitivity and specificity for
selected ECG criteria of LVH
|
Criterion |
Sensitivity (%) |
Specificity (%) |
|
Sokolow
Lyon Voltage |
22 |
100 |
|
Cornell
Voltage Criteria |
42 |
96 |
|
Cornell
Voltage Duration Criteria |
51 |
95 |
|
RaVL > 11
mm |
11 |
100 |
|
Romhilt-Estes
> 4 points |
54 |
85 |
|
Romhilt-Estes
> 5 points |
33 |
94 |
Related Criteria
Common
Diagnostic Criteria for Left and
Right Atrial Abnormalities
More...
References: