[The prognostic value of cytokeratin-18 cell death marker in cardiac arrest survivors].

Abstract:

:Introduction: Cytokeratin-18 (CK-18) is releasing into the blood during systemic cell death due to ischemia-reperfusion injury after cardiac arrest. Its caspase-cleaved form is specific to apoptosis. Previous investigations proved their prognostic value in different conditions. We firstly investigated the prognostic value of these markers after cardiac arrest. Method: Plasma samples of 40 resuscitated patients were collected 6, 24, and 72 hours after successful resuscitation to determine the marker concentrations. We investigated the association of the markers with the 30-day mortality, neurological outcome, circumstances of the cardiac arrest, laboratory and physical parameters. Results: Resuscitated patients had highly elevated CK-18 levels (3842 vs. 242; 559; 1644 ng/L) and decreased caspase-cleaved CK-18/CK-18 ratio (0.14 vs. 0.58; 0.22; 0.24) compared to healthy subjects, septic and postoperative patients suggesting severe grade of cell death, mainly necrosis. Neither the marker concentrations nor their kinetics showed difference between survivors and non-survivors. They did not show association with the length of the resuscitation, the initial rhythm or the neurological outcome either. CK-18 decreased in patients with good renal function in contrast to patients with renal failure. Significant negative correlation was observed between the 6-hour cytokeratin-18 and hemoglobin concentrations (r = -0.400, p<0.01), while the 30-day survival was associated with lower hemoglobin levels. Conclusion: Surprisingly the biomarkers did not show prognostic value among resuscitated population. The outcome is probably not determined by the complete cell damage, but the loss of a small group of cells with critical role and the reserve capacity of the patient. Orv Hetil. 2020; 161(1): 26-32. :Absztrakt: Bevezetés: Citokeratin-18 (CK-18) az újraélesztés kapcsán kialakuló ischaemiás-reperfúziós károsodás kiváltotta teljes sejthalál során kerül a véráramba. Kaszpázok által hasított formája specifikus az apoptózis folyamatára. A markerek számos kórképben prognosztikus értékűnek bizonyultak. Tanulmányunkban elsőként vizsgáltuk prognosztikus értéküket reanimált betegpopulációban. Módszer: 40, sikeresen újraélesztett betegnél határoztuk meg a sejthalálmarkerek szintjét 6 órán belül, 24 és 72 óra múlva. Ezeket összevetettük a 30 napos túléléssel, a neurológiai kimenetellel, a szervfunkciós károsodást jellemző laboratóriumi, fizikális és terápiás jellemzőkkel, valamint a reanimáció körülményeivel. Eredmények: A reanimált betegek CK-18-plazmakoncentrációja a szakirodalomban leírt egészséges, posztoperatív és szeptikus populáció értékeinek a többszöröse volt (3842 vs. 242; 559; 1644 ng/l); a hasított és intakt CK-18 aránya alacsonyabb volt (0,14 vs. 0,58; 0,22; 0,24), ami jelentős sejtkárosodásra és a nekrózis dominanciájára utal. A markerek szintje azonban nem mutatott összefüggést a túléléssel, a neurológiai statusszal és a reanimáció körülményeivel sem. Veseelégtelenség esetén a CK-18 szintjének csökkenése elmaradt. Szignifikáns negatív korrelációt figyeltünk meg a 6 órás hemoglobin- és CK-18-szint között (r = –0,400, p<0,01), a 30 napos túlélésnek mégis az alacsonyabb hemoglobinértékek kedveztek. Következtetés: Várakozásunkkal ellentétben a vizsgált markerek nem bírtak prognosztikus értékkel újraélesztett betegpopulációban. A kimenetelt valószínűleg nem a teljes sejtkárosodás, hanem egy kisebb, a fenti markerekkel szenzitíven nem vizsgálható kritikus szerepű sejtpopuláció károsodása, valamint a beteg tartalékkapacitásai befolyásolják. Orv Hetil. 2020; 161(1): 26–32.

journal_name

Orv Hetil

journal_title

Orvosi hetilap

authors

Csiszár B,Németh Á,Márton Z,Riba J,Csécsei P,Molnár T,Deres L,Halmosi R,Tóth K,Kenyeres P

doi

10.1556/650.2020.31564

subject

Has Abstract

pub_date

2020-01-01 00:00:00

pages

26-32

issue

1

eissn

0030-6002

issn

1788-6120

journal_volume

161

pub_type

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