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Erschienen in: Wiener klinische Wochenschrift 21-22/2014

01.11.2014 | original article

Off-pump myocardial revascularization attenuates endothelin-1 expression in systemic, pulmonary, and coronary circulation

verfasst von: MD Daniel Unić, MD Davor Barić, PhD Kristina Brkić, MD Mislav Planinc, MD Dubravka Jonjić, MD, PhD Igor Rudež, MD, PhD Željko Sutlić

Erschienen in: Wiener klinische Wochenschrift | Ausgabe 21-22/2014

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Summary

Objective

The objective of this study was to evaluate the influence of cardiopulmonary bypass (CPB) on endothelin-1 (ET-1) expression in various circulation compartments in patients undergoing myocardial revascularization.

Methods

A total of 30 patients were randomized to undergo myocardial revascularization with (CABG, n = 15) or without (OPCAB, n = 15) CPB. Samples were taken preoperatively, after establishing CPB and after CPB (CABG group), prior to and after revascularization (OPCAB group), and 6 and 24 h postoperatively. Values of ET-1 were compared between groups at all time points and correlated with postoperative cardioselective enzyme values and clinical parameters.

Results

In OPCAB group, ET-1 levels did not significantly vary between time points. In CABG group, ET-1 levels were significantly elevated vs. baseline in arterial: ART-T2 vs. ART-T0 (1.83 ± 1.81 vs. 0.76 ± 1.07 fmol/mL, p = 0.05), pulmonary: SG-T2 vs. SG-T0 (2.70 ± 2.75 vs. 0.39 ± 0.28 fmol/mL, p < 0.001) and SG-T3 vs. SG-T0 (1.56 ± 0.28 vs. 0.39 ± 0.28 fmol/mL, p < 0.001), and coronary circulation CS-T2 vs. CS-T1 (1.12 ± 0.49 vs. 0.27 ± 0.09 fmol/mL, p = 0.01). ET-1 levels were significantly higher in CABG group in all vascular compartments: ART-T2 (1.83 ± 1.81 vs. 0.17 ± 0.16 fmol/mL, p = 0.02), ART-T4 (0.99 ± 0.56 vs. 0.24 ± 0.12 fmol/mL, p = 0.01), SG-T1 (0.59 ± 0.15 vs. 0.25 ± 0.13 fmol/mL, p = 0.01), SG-T2 (2.70 ± 2.75 vs. 0.30 ± 0.24 fmol/mL, p = 0.004), SG-T3 (1.56 ± 0.28 vs. 0.35 ± 0.31 fmol/mL, p < 0.001), SG-T4 (1.34 ± 0.11 vs. 0.34 ± 0.16 fmol/mL, p < 0.001), and CS-T2 (1.12 ± 0.49 vs. 0.12 ± 0.12 fmol/mL, p = 0.004). Coronary sinus ET-1 level after CPB (CS-T2) in CABG group correlated positively with troponin-I level 24 h postoperatively (r 2 = 0.802, p = 0.02)

Conclusion

Off-pump myocardial revascularization attenuates ET-1 expression in all investigated vascular compartments. Elevated coronary ET-1 levels after CPB in CABG group correlate with troponin-I levels 24 h postoperatively.
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Metadaten
Titel
Off-pump myocardial revascularization attenuates endothelin-1 expression in systemic, pulmonary, and coronary circulation
verfasst von
MD Daniel Unić
MD Davor Barić
PhD Kristina Brkić
MD Mislav Planinc
MD Dubravka Jonjić
MD, PhD Igor Rudež
MD, PhD Željko Sutlić
Publikationsdatum
01.11.2014
Verlag
Springer Vienna
Erschienen in
Wiener klinische Wochenschrift / Ausgabe 21-22/2014
Print ISSN: 0043-5325
Elektronische ISSN: 1613-7671
DOI
https://doi.org/10.1007/s00508-014-0664-8