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SECTION 7 147
V1 V4
V2 V5
V3 V6
F 40 021
Right atrial abnormality (P-pulmonale)
Left atrial abnormality (P-mitrale)
Biatrial hypertrophyRight ventricular hypertrophy
(RVH)Left ventricular hypertrophy
(LVH) – limb lead criteria Left ventricular hypertrophy
(LVH) – chest lead criteriaBiventricular hypertrophy
HYPERTROPHYPATTERNS
Section 07.qxd 8/11/04 8:26 PM Page 147
A 5
4-y
ear-
old
lady
wit
h b
ronchie
cta
sis
CA
SE
68
148
IaV
R
IIaV
L
IIIaV
FV
3
V2
V1
V4
V5
V6
RH
YT
HM
ST
RIP
: II
25 m
m/ s
ec; 1
cm
/mV
LOC
000
02 –
000
2F
40
021
Section 07.qxd 8/11/04 8:26 PM Page 148
•P
eake
d (A
-sha
ped
) P w
aves
mor
e th
an 3
mm
in h
eigh
t in
lead
s II,
III,
or a
VF.
•O
ther
fea
ture
s:–
tall
P w
aves
in t
he r
ight
che
st le
ads
(> 1
.5 m
m)
–p
rom
inen
t at
rial r
epol
aris
atio
n (T
a) w
ave.
FEAT
UR
ES
OF
THIS
EC
G
•S
inus
tac
hyca
rdia
, 12
0 b
.p.m
., rig
htw
ard
QR
S a
xis
•D
iagn
ostic
fea
ture
s of
P-p
ulm
onal
e:–
abno
rmal
ly t
all P
wav
es in
II,
III,
and
aV
F (F
ig.
68.1
)–
tall
P w
ave
in le
ad V
3 (F
ig.
68.2
)–
pro
min
ent
Ta w
ave
(Fig
. 68
.2)
•Fe
atur
es o
f ch
roni
c ob
stru
ctiv
e ai
rway
s d
isea
se:
–cl
ockw
ise
elec
tric
al r
otat
ion
(late
tra
nsiti
on)
–p
oste
rior
dis
pla
cem
ent
of t
he Q
RS
axi
s (d
eep
S w
aves
inth
e rig
ht c
hest
lead
s)
CLI
NIC
AL
NO
TE
Her
che
st x
-ray
(Fig
. 68
.3) s
how
s rig
ht a
tria
l enl
arge
men
t an
dfe
atur
es o
f ch
roni
c lu
ng d
isea
se (h
yper
exp
and
ed lu
ngs
with
flatt
ened
dia
phr
agm
s).
Cause
s of
right
atr
ial
abnorm
alit
y
➔R
aise
d r
ight
ven
tric
ular
pre
ssur
e:–
pul
mon
ary
hyp
erte
nsio
n fr
om a
ny c
ause
–co
r p
ulm
onal
e➔
Tric
usp
id v
alve
ste
nosi
s:–
acq
uire
d (e
ndoc
ard
itis
from
i.v.
dru
g us
e)–
cong
enita
l (E
bst
ein’
s an
omal
y)➔
Rig
ht a
tria
l isc
haem
ia o
r in
farc
tion
(unc
omm
on)
Rig
ht
atr
ial
abnorm
alit
y (P
-pulm
onale
)
149SECTION 7
CASE 68
P w
ave
III
Fig
. 68.1
P-p
ulm
onal
e.
Fig
. 68.2
Ta w
ave.
Fig
. 68.3
Che
st x
-ray
sho
win
g rig
htat
rial e
nlar
gem
ent
(A).
V3
tall
P w
aves
Ta w
ave
(QR
S c
utaw
ay)
deep
S w
ave
Section 07.qxd 8/11/04 8:26 PM Page 149
A 4
3-y
ear-
old
Maori
man w
ith a
dia
stolic
murm
ur
CA
SE
69
150
IaV
R
IIaV
L
IIIaV
FV
3V2V1
V4
V5
V6
RH
YT
HM
ST
RIP
: VI
25 m
m/s
ec; 1
cm
/mV
Section 07.qxd 8/11/04 8:27 PM Page 150
Left
atr
ial
abnorm
alit
y (P
-mit
rale
)
151SECTION 7
CASE 69
•N
otch
ed (M
-sha
ped
) P w
ave
whi
ch e
xcee
ds
120
ms
(3 s
mal
lsq
uare
s) in
dur
atio
n in
lead
s I,
II, a
VF
or a
VL.
•O
ther
fea
ture
s:–
pro
long
ed d
urat
ion
( > 4
0 m
s/1
smal
l sq
uare
) and
incr
ease
dam
plit
ude
(0.1
mV
) of
the
term
inal
neg
ativ
e co
mp
onen
t to
the
P w
ave
in V
1.–
dur
atio
n b
etw
een
the
two
pea
ks o
f th
e ‘M
’ >
40
ms
(1 s
mal
lsq
uare
).
FEAT
UR
ES
OF
THIS
EC
G
•S
inus
rhy
thm
, 72
b.p
.m.,
vert
ical
QR
S a
xis
•Fe
atur
es o
f P
-mitr
ale:
–b
road
, no
tche
d P
wav
es s
een
in t
he in
ferio
r le
ads
(Fig
. 69
.1)
–m
arke
d n
egat
ive
com
pon
ent
to P
wav
e in
lead
V1
(Fig
. 69
.2)
•Fe
atur
es o
f rig
ht v
entr
icul
ar h
yper
trop
hy:
–d
omin
ant
R w
ave
in le
ad V
1, w
ith S
T d
epre
ssio
n an
d T
wav
ein
vers
ion
(Fig
. 69
.2)
–d
eep
S w
aves
in t
he la
tera
l lea
ds
(Fig
. 69
.3)
CLI
NIC
AL
NO
TE
The
com
bin
atio
n of
left
atr
ial h
yper
trop
hy a
nd r
ight
ven
tric
ular
hyp
ertr
ophy
sug
gest
s m
itral
ste
nosi
s. T
his
pat
ient
had
mitr
alst
enos
is o
n th
e b
asis
of
rheu
mat
ic h
eart
dis
ease
. H
is c
hest
x-
ray
(Fig
. 69
.4) s
how
s ca
rdio
meg
aly,
enl
arge
men
t of
the
pul
mon
ary
outf
low
tra
ct (A
) and
left
atr
ial e
nlar
gem
ent
(B).
Cause
s of
left
atr
ial
abnorm
alit
y
➔Le
ft a
tria
l hyp
ertr
ophy
➔Le
ft a
tria
l dis
tens
ion
➔In
tera
tria
l con
duc
tion
blo
ck➔
Left
atr
ial s
carr
ing
II
notc
hed
P w
aves
Fig
. 69.1
P-m
itral
e.
–ve
dom
inan
t R w
ave
V1
Fig
. 69.2
Lead
V1.
aVL
deep
S w
ave
Fig
. 69.3
Lead
aV
L.
Fig
. 69.4
Che
st x
-ray
.
Section 07.qxd 8/11/04 8:27 PM Page 151
A 2
4-y
ear-
old
lady
wit
h a
his
tory
of
rheum
ati
c f
eve
r
CA
SE
70
152
IaV
R
IIaV
L
IIIaV
FV
3
V2
V1
V4
V5
V6
II
Section 07.qxd 8/11/04 8:27 PM Page 152
Bia
tria
l hyp
ert
rophy
•P
wav
es in
the
lim
b le
ads
mor
e th
an 3
mm
in h
eigh
t an
d a
lso
grea
ter
than
120
ms
(3 s
mal
l sq
uare
s) in
dur
atio
n.•
Larg
e b
ipha
sic
P w
aves
in V
1 w
ith a
n in
itial
pos
itive
def
lect
ion
of m
ore
than
2m
m a
nd a
ter
min
al n
egat
ive
por
tion
at le
ast
1 m
m d
eep
and
40
ms
(1 s
mal
l sq
uare
) in
dur
atio
n.•
P w
ave
grea
ter
than
2 m
m in
hei
ght
in V
1 in
com
bin
atio
n w
ithno
tche
d P
wav
es,
grea
ter
than
120
ms
in d
urat
ion
in t
he li
mb
lead
s or
left
pre
cord
ial l
ead
s.
Any
of
thes
e th
ree
crite
ria s
ugge
sts
the
dia
gnos
is o
f b
iatr
ial
hyp
ertr
ophy
.
FEAT
UR
ES
OF
THIS
EC
G
•S
inus
rhy
thm
, 92
b.p
.m.,
vert
ical
QR
S a
xis
•Fe
atur
es o
f b
iatr
ial h
yper
trop
hy:
–P
wav
es in
the
lim
b le
ads
whi
ch a
re b
road
, no
tche
d,
and
tal
l(F
ig.
70.1
)–
larg
e b
ipha
sic
P w
ave
in V
1 (F
ig.
70.2
)–
notc
hed
P w
aves
with
a d
urat
ion
of g
reat
er t
han
120
ms
inth
e le
ft p
reco
rdia
l lea
ds
(Fig
. 70
.3)
•Lo
ng P
R in
terv
al,
grea
ter
than
200
ms
(Fig
. 70
.4)
CLI
NIC
AL
NO
TE
This
lad
y ha
d r
heum
atic
trip
le v
alve
dis
ease
. H
er c
ard
iac
cath
eter
stu
dy
doc
umen
ted
crit
ical
tric
usp
id s
teno
sis,
sev
ere
mitr
al s
teno
sis,
and
sev
ere
aort
ic s
teno
sis.
153SECTION 7
CASE 70
I
notc
h
4 m
m h
igh
P w
ave
Fig
. 70.1
Lead
I.
V1
P
P
QR
S
QR
S
Fig
. 70.2
Larg
e b
ipha
sic
P w
aves
.
V6
notc
h
Fig
. 70.3
Lead
V6.
II
PR
inte
rval
of 2
40 m
s
Fig
. 70.4
Long
PR
inte
rval
.
Section 07.qxd 8/11/04 8:27 PM Page 153
A 2
5-y
ear-
old
lady
wit
h D
ow
n s
yndro
me
CA
SE
71
154
IaV
R
IIaV
L
IIIaV
F
II
V3
V2
V1
V4
V5
V6
Section 07.qxd 8/11/04 8:27 PM Page 154
Rig
ht
ventr
icula
r hyp
ert
rophy
(RV
H)
•R
ight
axi
s d
evia
tion
(QR
S a
xis
> +
90°)
•D
omin
ant
R w
ave
in V
1.•
No
evid
ence
of
ante
rola
tera
l myo
card
ial i
nfar
ctio
n or
bun
dle
bra
nch
blo
ck.
•O
ther
fea
ture
s:–
ST
segm
ent
dep
ress
ion
and
T w
ave
inve
rsio
n in
the
rig
htch
est
lead
s (V
1–4)
–d
eep
S w
aves
in t
he la
tera
l lea
ds
(V4–
6, I
and
aV
L).
FEAT
UR
ES
OF
THIS
EC
G
•S
inus
rhy
thm
, 84
b.p
.m.
•Fe
atur
es o
f R
VH
:–
right
axi
s d
evia
tion,
+12
5°(F
ig.
71.1
)–
dom
inan
t R
wav
e in
V1
(Fig
. 71
.2)
–d
eep
S w
aves
in t
he la
tera
l lea
ds
(Fig
. 71
.3)
•Fe
atur
es o
f rig
ht a
tria
l hyp
ertr
ophy
:–
abno
rmal
ly t
all P
wav
es in
the
infe
rior
lead
s an
d V
1(F
igs
71.2
and
71.
4)
CLI
NIC
AL
NO
TE
This
lad
y ha
d a
con
geni
tal v
entr
icul
ar s
epta
l def
ect
with
a la
rge
right
-to-
left
shu
nt (E
isen
men
ger
synd
rom
e).
She
was
dee
ply
cyan
osed
and
die
d s
ever
al d
ays
afte
r th
is E
CG
was
tak
en.
Cause
s of
a d
om
inant
R w
ave
in V
1
➔N
orm
al f
ind
ing
in c
hild
ren
➔R
ight
ven
tric
ular
hyp
ertr
ophy
➔R
ight
bun
dle
bra
nch
blo
ck➔
True
pos
terio
r m
yoca
rdia
l inf
arct
ion
➔Ve
ntric
ular
pre
-exc
itatio
n (W
PW
syn
dro
me)
➔D
uche
nne
mus
cula
r d
ystr
ophy
155SECTION 7
CASE 71
4 m
mI
aVF
12 m
m–7
+10
11 m
m2
mm
4 –
11 =
7 m
m12
– 2
= 1
0 m
m
+12
5º
Fig
. 71.1
Rig
ht a
xis
dev
iatio
n.
dom
inan
t R w
ave
V1
P w
ave
> 1
.5 m
m
Fig
. 71.2
Lead
V1.
I
deep
S w
aves
Fig
. 71.3
Lead
I.
II
P w
ave
> 3
mm
Fig
. 71.4
P-p
ulm
onal
e.
Section 07.qxd 8/11/04 8:27 PM Page 155
A 2
5-y
ear-
old
male
soccer
pla
yer
wit
h a
n e
jecti
on s
ysto
lic m
urm
ur
CA
SE
72
156
IaV
R
IIaV
L
IIIaV
FV
3
V2
V1
V4
V5
V6
RH
YT
HM
ST
RIP
: II
25 m
m/s
ec; 1
cm
/mV
Section 07.qxd 8/11/04 8:27 PM Page 156
Left
ventr
icula
r hyp
ert
rophy
(LV
H)
– lim
b l
ead c
rite
ria
•Th
ere
are
a nu
mb
er o
f cr
iteria
for
LV
H b
ased
on
the
volta
ges
of t
he Q
RS
def
lect
ions
(see
crit
eria
list
ed b
elow
). Th
ese
crite
riaha
ve g
ood
sp
ecifi
city
but
poo
r se
nsiti
vity
.•
Oth
er f
eatu
res:
–S
T d
epre
ssio
n an
d T
wav
e in
vers
ion
(LV
str
ain
pat
tern
) in
lead
s w
ith p
rom
inen
t R
wav
es–
coun
terc
lock
wis
e el
ectr
ical
rot
atio
n (e
arly
tra
nsiti
on)
–in
crea
sed
ven
tric
ular
act
ivat
ion
time
–in
vert
ed U
wav
es in
the
left
che
st le
ads
–le
ftw
ard
QR
S a
xis.
FEAT
UR
ES
OF
THIS
EC
G
•S
inus
bra
dyc
ard
ia,
54 b
.p.m
. •
Feat
ures
of
LVH
(Fig
. 72
.1):
–le
ftw
ard
axi
s–
early
ele
ctric
al t
rans
ition
(dom
inan
t R
in V
2)–
tall
R w
aves
in a
VL
and
lead
I–
tall
R w
aves
in t
he le
ft c
hest
lead
s an
d d
eep
S w
ave
in V
1–
wid
esp
read
ST
dep
ress
ion
and
T w
ave
inve
rsio
n
CLI
NIC
AL
NO
TE
Hyp
ertr
ophi
c ob
stru
ctiv
e ca
rdio
myo
pat
hy (H
OC
M) w
asd
iagn
osed
at
echo
card
iogr
aphy
.
157SECTION 7
CASE 72
Volt
age c
rite
ria f
or
LVH
Sok
olow
& L
yon:
1S
V1
+ R
(V5
or V
6) >
35
mm
Cor
nell:
2S
V3
+ R
aVL
> 2
8 m
m in
men
SV
3 +
RaV
L >
20
mm
in w
omen
Fram
ingh
am:3
RaV
L >
11
mm
RV
4–6
> 2
5 m
mS
V1–
3 >
25
mm
S(V
1 or
V2)
+ R
(V5
or V
6) >
35
mm
RI +
SIII
> 2
5 m
mR
omhi
lt &
Est
es:4
Poi
nt s
core
sys
tem
1S
okol
ow M
, Ly
on T
P 1
949
Vent
ricul
ar c
omp
lex
in le
ft v
entr
icul
ar h
yper
trop
hy a
s ob
tain
ed b
yun
ipol
ar p
reco
rdia
l and
lim
b le
ads.
Am
eric
an H
eart
Jou
rnal
37:
161
2C
asal
e P
N e
t al
198
7 Im
pro
ved
sex
-sp
ecifi
c cr
iteria
for
left
ven
tric
ular
hyp
ertr
ophy
for
clin
ical
and
com
put
er in
terp
reta
tion
of e
lect
roca
rdio
gram
s: v
alid
atio
n w
ith a
utop
sy f
ind
ings
. C
ircul
atio
n75
(3):
565–
572
3Le
vy D
et
al 1
990
Det
erm
inan
ts o
f se
nsiti
vity
and
sp
ecifi
city
of
elec
troc
ard
iogr
aphi
c cr
iteria
for
left
ven
tric
ular
hyp
ertr
ophy
. C
ircul
atio
n 81
: 81
5–82
0 4R
omhi
lt D
W,
Est
es E
H 1
986
Poi
nt s
core
sys
tem
for
the
EC
G d
iagn
osis
of
left
ven
tric
ular
hyp
ertr
ophy
. A
mer
ican
Hea
rt J
ourn
al 7
5: 7
52–7
58
tall
R w
aves
ST
dep
ress
ion
T w
ave
inve
rsio
n
I
Fig
. 72.1
Lead
I.
Section 07.qxd 8/11/04 8:27 PM Page 157
A 7
0-y
ear-
old
man w
ith l
ongst
andin
g h
ypert
ensi
on
CA
SE
73
158
aVR
I IIaV
L
IIIaV
FV
3V
6
V2
V5
V1
V4
RH
YT
HM
ST
RIP
: II
25 m
m/s
ec; 1
cm
/mV
Section 07.qxd 8/11/04 8:27 PM Page 158
Left
ventr
icula
r hyp
ert
rophy
(LV
H)
– chest
lead c
rite
ria
•Th
ere
are
a nu
mb
er o
f cr
iteria
for
LV
H b
ased
on
the
volta
ges
of t
he Q
RS
def
lect
ions
(see
p.
157)
.•
Oth
er f
eatu
res:
–S
T d
epre
ssio
n an
d T
wav
e in
vers
ion
(LV
str
ain
pat
tern
) in
lead
s w
ith p
rom
inen
t R
wav
es–
coun
terc
lock
wis
e el
ectr
ical
rot
atio
n (e
arly
tra
nsiti
on)
–in
crea
sed
ven
tric
ular
act
ivat
ion
time
–in
vert
ed U
wav
es in
the
left
che
st le
ads
–le
ftw
ard
QR
S a
xis
–as
soci
ated
left
atr
ial a
bno
rmal
ity.
FEAT
UR
ES
OF
THIS
EC
G
•S
inus
rhy
thm
, 54
b.p
.m.
•Fr
eque
nt v
entr
icul
ar p
rem
atur
e b
eats
(VP
Bs)
•Fe
atur
es o
f LV
H:
–le
ftw
ard
axi
s (−
30°)
–vo
ltage
crit
eria
for
LV
H in
the
che
st le
ads,
SV
1 +
RV
6 >
35
mm
(Fig
. 73
.1)
–R
aVL
> 1
1 m
m–
asso
ciat
ed le
ft a
tria
l ab
norm
ality
(Fig
. 73
.2)
–w
ides
pre
ad S
T d
epre
ssio
n an
d T
wav
e in
vers
ion
(Fig
. 73
.1)
Cause
s of
left
ventr
icula
r hyp
ert
rophy
➔S
ysto
lic o
verlo
ad:
–sy
stem
ic h
yper
tens
ion
–ao
rtic
ste
nosi
s–
coar
ctat
ion
of t
he a
orta
–hy
per
trop
hic
card
iom
yop
athy
➔D
iast
olic
ove
rload
:–
mitr
al in
com
pet
ence
–ao
rtic
inco
mp
eten
ce
159SECTION 7
CASE 73
V1
V6
17 m
m
42 m
m ST
dep
ress
ion
and
T w
ave
inve
rsio
n
Fig
. 73.1
Volta
ge c
riter
ia f
or L
VH
.
V1
broa
d, n
otch
ed p
wav
e in
lead
IIV
PB
term
inal
–ve
p w
ave
in V
1
Fig
. 73.2
Left
atr
ial a
bno
rmal
ity.
Section 07.qxd 8/11/04 8:27 PM Page 159
A 1
7-y
ear-
old
wom
an w
ith a
loud p
ansy
stolic
murm
ur
CA
SE
74
160
aVR
I IIaV
L
IIIaV
F
II
V3
V3
V2
V5
V1
V4
Section 07.qxd 8/11/04 8:27 PM Page 160
Biv
entr
icula
r hyp
ert
rophy
•Vo
ltage
crit
eria
for
LV
H in
the
che
st le
ads
com
bin
ed w
ith r
ight
axis
dev
iatio
n an
d p
rom
inen
t R
wav
es in
the
rig
ht p
reco
rdia
lle
ads.
•H
igh
volta
ge b
ipha
sic
RS
com
ple
xes
in t
he m
id-p
reco
rdia
lle
ads
(mos
t co
mm
on in
VS
D).
•E
vid
ence
of
asso
ciat
ed le
ft a
tria
l enl
arge
men
t.
FEAT
UR
ES
OF
THIS
EC
G
•S
inus
tac
hyca
rdia
, 13
0 b
.p.m
. •
Feat
ures
of
RV
H:
–rig
ht a
xis
dev
iatio
n (+
100°
)–
dom
inan
t R
wav
e in
V1
(rS
R′)
–S
T se
gmen
t d
epre
ssio
n an
d T
wav
e in
vers
ion
in t
he r
ight
ches
t le
ads
(Fig
. 74
.1)
•Fe
atur
es o
f LV
H:
–ta
ll R
wav
es in
the
left
che
st le
ads
(RV
5 35
mm
)–
pro
min
ent
nega
tive
com
pon
ent
to P
wav
e in
V1
sugg
estin
gas
soci
ated
left
atr
ial a
bno
rmal
ity (F
ig.
74.2
)•
Hig
h vo
ltage
bip
hasi
c R
S c
omp
lexe
s in
the
mid
-pre
cord
ial
lead
s (F
ig.
74.1
)
CLI
NIC
AL
NO
TE
This
you
ng w
oman
had
a s
mal
l to
mod
erat
e si
zed
VS
D.
161SECTION 7
CASE 74
ST
dep
ress
ion
inve
rted
T w
ave
V3
high
vol
tage
bip
hasi
c Q
RS
Fig
. 74.1
Lead
V3.
Fig
. 74.2
Lead
V1.
V1
dom
inan
t R w
ave
nega
tive
Pw
ave
Section 07.qxd 8/11/04 8:27 PM Page 161