one year: before and after ana reflex the purpose is : to...
TRANSCRIPT
AIM
The purpose is :
•To observe the “behaviour” of ANA Reflex
•To compare the results for the period
1 May 2013 - 1 May 2014
versus the preceding year ( 1 May 2012 -
30 April 2013)
before the introduction of ANA Reflex) in the
Autoimmune Laboratory of Modena and Parma to
feel our way in an early stage.
ONE YEAR: before AND after ANA REFLEX
ANA testing
Find ANA when it is clinically relevant
Help the clinicians interpret our results
Do the tests in the most appropriate way
7950
50,83%
7690
49,16%
15981
ANA Reflex 2013-2014
ANA 2013-2014
ANA All (2 0 1 3 -2 0 1 4 )
RE
SU
LT
S O
F T
HE
FIR
ST
YE
AR
ANA Modena
4261
(54,42%)
3568
(45,57%)
7861
ANA Reflex 2013-2014
ANA 2013-2014
ANA All (2013-2014)
RE
SU
LT
S O
F T
HE
FIR
ST
YE
AR
ANA Parma
Total numberNegatives
Positives
ENA 2013-2014
ENA 2012-2013
5981
5212
(87,1%)
768
(12,84%)
4741
3903
(82,3%)
774
(16,32%)
ENA 2013-2014
ENA 2012-2013
ENA Modena R
ES
UL
TS
OF
TH
E F
IRS
T Y
EA
R
Total numberNegatives
Positives
ENA 2013-2014
ENA 2012-2013
3715 3371
(90,74%)
344
(9,25%)
2900
2590
(89,31%)
310
(10,68%)
ENA 2013-2014
ENA 2012-2013
ENA Parma R
ES
UL
TS
OF
TH
E F
IRS
T Y
EA
R
ENA TESTS
Report of ENA reduction in Parma Lab.
Report of ENA reduction in Modena Lab. - 1240
- 815
- 20,73%
- 21,94%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Absolute
difference
Percentage
PARMA ENA Differenceamong the two periods
MODENA ENA
Difference among the two
periods
ENA TESTS
POSITIVITY
Modena
12,84% (2012-2013)
16,32% (2013-2014)
Parma
9,26% (2012-2013)
10,69% (2013-2014)
DNA 2013-2014 2539 2200 314 204 71
DNA 2012-2013 3421 3068 353 254 65
DNA Performed Negatives Positives DNA IFA Performed DNA IFA Positives
DNA Modena
DNA 2013-2014 2272 2048 224
DNA 2012-2013 2626 2430 196
DNA Performed Negatives DNA IFA
Positives
DNA Parma
- 882
- 354
- 25,78%
- 13,48%
Absolute difference Percentage
PARMA DNA Difference
among the two periods
MODENA DNA
Difference among the
two periods
Report of DNA reduction in Parma Lab.
Report of DNA reduction in Modena Lab.
DNA TESTS
DIS
CU
SS
ION
During the first YEAR of ANA Reflex application:
we observed the request of ANA Reflex has already
been not inferior of 45% of the total ANA requests
we observed that ENA during the 2013-14 period had
a reduction around the 20% compared to 2012-13 and
a concomitant increase of positivity
DNA showed a reduction always comparing “before
and after “ ANA Reflex, improving the selected positive
cases
we observed more or less the same trend in Modena
and Parma
Summarised
ANA testing
12
Agreed that ANA test is central to the diagnosis of
autoimmune diseases
Highlighted issue with
analytical specificity and sensitivity
clinical specificity and sensitivity
increasing demand for testing
lack of standardisation
changes in technology being introduced
Appropriateness is an important
target for Health Services and
Laboratory can provide useful
diagnostic tools in order to
improve clinical decision making
in the Autoimmune Disease field.
CO
NC
LU
SIO
N