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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 Medicine+(Baltimore)
2016 ; 95
(24
): e3843
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The AST/ALT (De-Ritis) ratio: A novel marker for critical limb ischemia in
peripheral arterial occlusive disease patients
#MMPMID27310963
Rief P
; Pichler M
; Raggam R
; Hafner F
; Gerger A
; Eller P
; Brodmann M
; Gary T
Medicine (Baltimore)
2016[Jun]; 95
(24
): e3843
PMID27310963
show ga
The aspartat aminotransferase (AST)/alanin aminotransferase (ALT) (De-Ritis)
ratio (AAR) is an easily applicable blood test. An elevated AAR on the one hand
has been associated with an increase in nonalcoholic fatty liver disease (NAFLD).
NAFLD on the other hand is associated with an increase in cardiovascular disease,
all-cause mortality, and diabetes. As the AAR is also elevated in case of
muscular damage, we investigated AAR and its association with critical limb
ischemia (CLI) in peripheral arterial occlusive disease (PAOD) patients.In our
cross-sectional study, we included 1782 PAOD patients treated at our institution
from 2005 to 2010. Patients with chronic alcohol consumption (>20?g/day) were
excluded. AAR was calculated and the cohort was categorized into tertiles
according to the AAR. An optimal cut-off value for the continuous AAR was
calculated by applying a receiver operating curve analysis to discriminate
between CLI and non-CLI.In our cohort, occurrence of CLI significantly increased
with an elevation in AAR. As an optimal cut-off value, an AAR of 1.67
(sensitivity 34.1%, specificity 81.0%) was identified. Two groups were
categorized, 1st group containing 1385 patients (AAR?1.67) and a 2nd group with
397 patients (AAR?>?1.67). CLI was more frequent in AAR?>?1.67 patients (166
[41.9%]) compared to AAR?1.67 patients (329 [23.8%]) (P?0.001), as was prior
myocardial infarction (28 [7.1%] vs 54 [3.9%], P = 0.01). Regarding inflammatory
parameters, C-reactive protein (median 8.1?mg/L [2.9-28.23] vs median 4.3?mg/L
[2.0-11.5]) and fibrinogen (median 427.5?mg/dL [344.25-530.0] vs 388.0?mg/dL
[327.0-493.0]) also significantly differed in the 2 patient groups (both
P?0.001). Finally, an AAR?>?1.67 was associated with an odds ratio (OR) of 2.0
(95% confidence interval [CI] 1.7-2.3) for CLI even after adjustment for other
well-established vascular risk factors.An increased AAR is significantly
associated with patients at high risk for CLI and other cardiovascular endpoints.
The AAR is a broadly available and cheap marker, which might be useful to
highlight patients at high risk for vascular endpoints.