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2019 ; 210
(7
): 316-320
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gab.com Text
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English Wikipedia
The impact of rapid molecular diagnostic testing for respiratory viruses on
outcomes for emergency department patients
#MMPMID30838671
Wabe N
; Li L
; Lindeman R
; Yimsung R
; Dahm MR
; Clezy K
; McLennan S
; Westbrook J
; Georgiou A
Med J Aust
2019[Apr]; 210
(7
): 316-320
PMID30838671
show ga
OBJECTIVE: To determine whether rapid polymerase chain reaction (PCR) testing for
influenza and respiratory syncytial viruses (RSV) in emergency departments (EDs)
is associated with better patient and laboratory outcomes than standard multiplex
PCR testing. DESIGN, SETTING: A before-and-after study in four metropolitan EDs
in New South Wales. PARTICIPANTS: 1491 consecutive patients tested by standard
multiplex PCR during July-December 2016, and 2250 tested by rapid PCR during
July-December 2017. MAIN OUTCOME MEASURES: Hospital admissions; ED length of stay
(LOS); test turnaround time; patient receiving test result before leaving the ED;
ordering of other laboratory tests. RESULTS: Compared with those tested by
standard PCR, fewer patients tested by rapid PCR were admitted to hospital (73.3%
v 77.7%; P < 0.001) and more received their test results before leaving the ED
(67.4% v 1.3%; P < 0.001); the median test turnaround time was also shorter
(2.4 h [IQR, 1.6-3.9 h] v 26.7 h [IQR, 21.2-37.8 h]). The proportion of patients
admitted to hospital was also lower in the rapid PCR group for both children
under 18 (50.6% v 66.6%; P < 0.001) and patients over 60 years of age (84.3% v
91.8%; P < 0.001). Significantly fewer blood culture, blood gas, sputum culture,
and respiratory bacterial and viral serology tests were ordered for patients
tested by rapid PCR. ED LOS was similar for the rapid (7.4 h; IQR, 5.0-12.9 h)
and standard PCR groups (6.5 h; IQR, 4.2-11.9 h; P = 0.27). CONCLUSION: Rapid PCR
testing of ED patients for influenza virus and RSV was associated with better
outcomes on a range of indicators, suggesting benefits for patients and the
health care system. A formal cost-benefit analysis should be undertaken.
|*Molecular Diagnostic Techniques
[MESH]
|*Polymerase Chain Reaction
[MESH]
|Adolescent
[MESH]
|Adult
[MESH]
|Aged
[MESH]
|Aged, 80 and over
[MESH]
|Child
[MESH]
|Controlled Before-After Studies
[MESH]
|Emergency Service, Hospital/*statistics & numerical data
[MESH]