Carotid surgery affects plasma kynurenic acid concentration: A pilot study

Terlecki, Piotr; Pawlik, Paulina; Iwaniuk, Adam; Kocki, Tomasz; Przywara, Stanisław; Iłżecki, Marek; Zubilewicz, Tomasz; Kowalczyk, Michał; Parada-Turska, Jolanta; Dąbrowski, Wojciech

doi:10.12659/msm.890212

Cited by 4 publications

(2 citation statements)

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“…They did not analyse a relationship between KYNA and NLR ratio, but they presented a similar trend of changes in plasma KYNA concentration and NLR. A relation between NLR and plasma KYNA concentration was observed by Terlecki et al ( 2014 ), who analysed changes in plasma KYNA concentration and NLR and found a strong correlation between mentioned parameters. In the present study, we also found a correlation between NLR and plasma KYNA concentration in patients anaesthetised intravenously.…”

Section: Discussionmentioning

confidence: 70%

“…Persisted high plasma KYNA concentration has been noted in non-survived stroke traumatic patients and patients, who died after resuscitation (Darlington et al 2007 ; Ploder et al 2009 ; Ristagno et al 2013 ). Significantly higher plasma KYNA concentration has been found in carotid surgery patients with postoperative neurological dysfunctions (Terlecki et al 2014 ). KYNA has been also suggested as a marker of distress intolerance (Chiapelli et al 2014 ).…”

Section: Discussionmentioning

confidence: 99%

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Plasma Kynurenic Acid Concentration in Patients Undergoing Cardiac Surgery: Effect of Anaesthesia

Kotlińska-Hasiec

Nowicka-Stążka

Parada-Turska

et al. 2014

Arch. Immunol. Ther. Exp.

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Increases in plasma kynurenic acid (KYNA) concentration relate to the severity of inflammation. The aim of this study was to analyse changes in plasma KYNA concentration and neutrophil/lymphocyte ratio (NLR) in cardiac surgery patients. Additionally, the effect of anaesthesia was analysed. Adult cardiac surgery patients under intravenous general anaesthesia were studied. Additionally, some patients received sevoflurane (SEV) prior to cardiopulmonary bypass. Plasma KYNA concentration and NLR were measured before anaesthesia, just after surgery and on postoperative days 1, 2 and 3. Patients were assigned to two groups: patients who did not receive SEV (NonSEV group) and patients who received SEV (SEV group). Forty-three patients were studied. Twenty-four of them received SEV. KYNA increased immediately after surgery and remained elevated through postoperative day 3 in the NonSEV group, whereas it was similar to the preoperative concentration in the SEV group. NLR increased immediately after surgery in both groups, and higher values were noted in the NonSEV group than in the SEV group at postoperative days 2 and 3. Plasma KYNA concentration correlated with NLR in the NonSEV group. Cardiac surgery caused an increase in NLR. Plasma KYNA increased in the NonSEV group and correlated with NLR. Administration of SEV inhibited the increase in KYNA, most likely due to its anti-inflammatory properties.

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Section: Discussionmentioning

confidence: 70%