2018 Section 6 - Laryngology, Voice Disorders, and Bronchoesophalogy
S.-K.
Baek et
al.
/ Auris
Nasus
Larynx
44
(2017)
583 – 589
Table
2
of
the
pre-
and
postoperative Multi-Dimensional Voice
Program
(MDVP).
Results
1 week
PO
1 month
PO
3 months
p -Value
Preoperative
PO
Hemithyroidectomy F0
Group A Group B Group A Group B Group A Group B Group A Group B Group C Group D Group C Group D Group C Group D Group C Group D
209.2 211.5
5.6 3.9 0.1 0.1 0.1 0.1 0.0 0.0 4.5 3.1 0.1 0.1 1.2 0.1 0.0 0.0
202.2 183.9
7.3 7.1 0.1 0.1 0.2 0.2 0.0 0.0
201.6 179.0
7.3 7.9 0.1 0.1 0.3 0.3 0.0 0.0 6.3 5.5 0.2 0.1 0.6 0.1 0.0 0.0
201.8 186.9
6.9 7.4 0.2 0.1 0.4 0.4 0.0 0.0 6.9 5.2 0.1 0.1 0.2 0.1 0.0 0.0
0.9
0.75 0.75 2.97 2.72 0.12 0.12
0.87 0.87 2.82 2.74 0.13 0.12
0.92 0.87 2.96 2.86 0.13 0.12
1.02 0.87 3.09 3.11 0.14 0.12
0.41
Jitter
0.61
Shimmer
0.12
NHR
thyroidectomy
Total
213.2 203.4
204.9
7.6
197.2 167.1
203.1 176.9
< 0.01
F0
171.8
5.37
0.80 0.88 3.01 2.73 0.12 0.12
1.15 0.97 3.47 2.94 0.14 0.14
0.2 0.1 0.6 0.2 0.0 0.0
1.00 0.85 3.43 2.86 0.14 0.13
0.73 0.91 2.76 2.73 0.12 0.12
0.86
Jitter
0.16
Shimmer
0.15
NHR
fundamental
frequency; NHR = noise
harmonic
ratio;
PO = postoperative; Group A
and
C =
IONM
group; Group B
and D = non-IONM
group.
F0 =
maximum
In addition,
the changes
in F0 values ( D F0) at 1week, 1month,
pitch
showed
a
gradual
decrease
at
1
week
and
the preoperative values
month
after
operation
and
showed
recovery
at
3
months,
and 3months after surgery compared with were measured and compared between the
1
two groups. All of
the and
group C
showed
a
smaller
decrease
in
the maximum
whereas
D F0 then
showed tended
a
gradual
increase
until
1 month
after
surgery
pitch
value
compared
with
group
D.
An
ANOVA
test
vocal
showed
to
recover
irrespective
of
the
use
of
IONM.
a
significant
difference
in maximum
pitch
across
time
the D F0 values were higher
in groups B and D
(no-
between
group
C
and
D In
only
in
total
thyroidectomy
Furthermore, IONM groups)
points
irrespective of
the
extent of
surgery.
In
the
early
( p = 0.02)
( Table
4 ).
addition,
the
changes
in
the
patients
after
surgery
(postoperative
1 week),
even
if
hemithyr-
pitch
value
( D Maximum
pitch)
at
1 week,
1 month,
period
maximum
patients
did
not
show
any
significant
difference
in D
3
months
after
surgery
compared
with
the
preoperative
oidectomy
and
F0, there were significant differences compared with the
findings
and
compared
between
the
two
groups. increase recover showed
values were measured
in
total
thyroidectomy
patients
( p = 0.04). However,
at in of
all
groups,
the D Maximum
pitch
showed
a
gradual
obtained 1 month groups B
In
after
surgery,
these
changes were
significantly
larger extent
1
month
after
surgery
and
then
tended
to
until
irrespective of significantly a
and D
(no-IONM
groups)
irrespective
of
the
the use of
IONM. The D Maximum pitch
( p = 0.04
and p = 0.03,
respectively)
and
then decreased
smaller
decrease
in
the
IONM
group
compared irrespective
surgery
3 months
after
surgery
( Fig.
2 ).
the
no-IONM
group
at
1 week
after
operation
at
with
surgical
extent
( p = 0.02)
( Fig.
3 ).
of
Voice
range
profile
(VRP)
3.3.
Subjective
assessment
of
voice
quality
3.4.
the
results
for
the VRP, vocal
intensity
range was not
Among
different
according
to
the
surgical
extent
and and
GRBAS
scale
and
VHI
score
were
not
significantly
significantly
The
(data
not
shown).
Furthermore,
the
maximum
the
two
groups of
IONM
and no-IONM. The
IONM
different between
the voice
frequency
range did not show any
scores
tended
to
increase
during
the
early
period
after
minimum pitches of
VHI
difference However,
thyroidectomy but were not
in
groups
A
and
B
(hemithyroidectomy
groups).
statistically
significant between
the
in
groups C
and D
(total
thyroidectomy
groups),
the
groups
(Supplementary
Table
1,
0.05).
two
p >
Table 3 Proportion
of
normal
fundamental
frequency
on
the
pre-
and
postoperative
states.
F0
PO
1 week
F0
PO
1 month
F0
PO
3 months
F0
Preoperative
Hemithyroidectomy Group A
32 38
(85%)
26 26
(70.3%) (61.9%)
24 27
(64.9%) (64.3%)
26 27
(70.3%) (64.3%)
(90.5%)
Group B p -Value
0.727
0.434
0.957
0.572
thyroidectomy
Total
28 66
(96.6%) (89.2%)
25 46
(86.2%) (62.2%)
24 46
(82.8%) (62.2%)
25 49
(86.2%) (66.2%)
Group C Group D p -Value
0.439
0.018
0.044
0.042
fundamental
frequency;
PO = postoperative; Group A
and
C =
IONM
group; Group B
and D = non-IONM
group.
F0 =
114
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