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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Int+J+Environ+Res+Public+Health
2016 ; 13
(4
): 357
Nephropedia Template TP
gab.com Text
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Using the Reverse Shock Index at the Injury Scene and in the Emergency Department
to Identify High-Risk Patients: A Cross-Sectional Retrospective Study
#MMPMID27023577
Lai WH
; Rau CS
; Hsu SY
; Wu SC
; Kuo PJ
; Hsieh HY
; Chen YC
; Hsieh CH
Int J Environ Res Public Health
2016[Mar]; 13
(4
): 357
PMID27023577
show ga
BACKGROUND: The ratio of systolic blood pressure (SBP) to heart rate (HR), called
the reverse shock index (RSI), is used to evaluate the hemodynamic stability of
trauma patients. A SBP lower than the HR (RSI < 1) indicates the probability of
hemodynamic shock. The objective of this study was to evaluate whether the RSI as
evaluated by emergency medical services (EMS) personnel at the injury scene (EMS
RSI) and the physician in the emergency department (ED RSI) could be used as an
additional variable to identify patients who are at high risk of more severe
injury. METHODS: Data obtained from all 16,548 patients added to the trauma
registry system at a Level I trauma center between January 2009 and December 2013
were retrospectively reviewed. Only patients transferred by EMS were included in
this study. A total of 3715 trauma patients were enrolled and subsequently
divided into four groups: group I patients had an EMS RSI ?1 and an ED RSI ?1 (n
= 3485); group II an EMS RSI ? 1 and an ED RSI < 1 (n = 85); group III an EMS RSI
< 1 and an ED RSI ? 1 (n = 98); and group IV an EMS RSI < 1 and a ED RSI < 1 (n =
47). A Pearson's ?² test, Fisher's exact test, or independent Student's t-test
was conducted to compare trauma patients in groups II, III, and IV with those in
group I. RESULTS: Group II and IV patients had a higher injury severity score, a
higher incidence of commonly associated injuries, and underwent more procedures
(including intubation, chest tube insertion, and blood transfusion in the ED)
than patients in group I. Group II and IV patients were also more likely to
receive a severe injury to the thoracoabdominal area. These patients also had
worse outcomes regarding the length of stay in hospital and intensive care unit
(ICU), the proportion of patients admitted to ICU, and in-hospital mortality.
Group II patients had a higher adjusted odds ratio for mortality (5.8-times
greater) than group I patients. CONCLUSIONS: Using an RSI < 1 as a threshold to
evaluate the hemodynamic condition of the patients at the injury scene and upon
arrival to the ED provides valid information regarding deteriorating outcomes for
certain subgroups of patients in the ED setting. Particular attention and
additional resources should be provided to patients with an EMS RSI ? 1 that
deteriorates to an RSI < 1 upon arrival to the ED since a higher odds of
mortality was found in these patients.
|*Injury Severity Score
[MESH]
|*Registries
[MESH]
|Adult
[MESH]
|Blood Pressure
[MESH]
|Cross-Sectional Studies
[MESH]
|Emergency Medical Services/methods/statistics & numerical data
[MESH]
|Emergency Service, Hospital/statistics & numerical data
[MESH]