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Endogenous erythropoietin and a single bolus of 40,000 IU of epoetin alpha do not protect the heart from ischaemia-reperfusion injury during extracorporeal circulation for cardiac surgery

Division of Cardiology, Cardiovascular Department, San Filippo Neri Hospital, Rome, Italy david{at}mocini.it

P Muso

Division of Cardiac Surgery, Cardiovascular Department, San Filippo Neri Hospital, Rome, Italy

E Guendouz

Division of Cardiac Surgery, Cardiovascular Department, San Filippo Neri Hospital, Rome, Italy

L De Marco

Division of Cardiac Surgery, Cardiovascular Department, San Filippo Neri Hospital, Rome, Italy

L Mele

Laboratory Medicine Department, San Filippo Neri Hospital, Rome, Italy

R Cini

Division of Cardiac Surgery, Cardiovascular Department, San Filippo Neri Hospital, Rome, Italy david{at}mocini.it

P Sordini

Division of Cardiac Surgery, Cardiovascular Department, San Filippo Neri Hospital, Rome, Italy

A Alois

Division of Cardiac Surgery, Cardiovascular Department, San Filippo Neri Hospital, Rome, Italy

A Costantino

Division of Cardiac Surgery, Cardiovascular Department, San Filippo Neri Hospital, Rome, Italy

S Arima

The "Sapienza" University of Rome. Dipartimento di Statistica, Probabilità e Statistiche Applicate, San Filippo Neri Hospital, Rome, Italy

C Gentili

Division of Cardiac Surgery, Cardiovascular Department, San Filippo Neri Hospital, Rome, Italy

M Santini

Division of Cardiology, Cardiovascular Department, San Filippo Neri Hospital, Rome, Italy

Erythropoietin (EPO) exerts a tissue-protective activity in several non-haematopoietic tissues such as heart, brain, spinal cord and muscle. We evaluated the relationship between pre-operative endogenous EPO blood levels and myocardial damage in patients undergoing cardiopulmonary bypass (CPB). Furthermore, we investigated whether pre-operative administration of a single bolus of 40,000 IU epoetin alpha (EPO) would reduce troponin I or creatine kinase isoenzyme (CK-MB) after on-pump coronary artery bypass graft (CABG) surgery. Sixty-seven patients (45 CABG, 22 valvular surgery) were enrolled. EPO was measured in the pre-surgical period and correlated to post-surgical troponin I and CK-MB peaks. Subsequently, forty patients scheduled for CABG were randomized into two groups, receiving, respectively, a) standard medical and surgical treatment (20 patients) and b) the same treatment plus 40,000 IU of EPO in a single bolus injection in the immediate pre-surgical period (20 patients). In our population, we did not find any correlation between pre-surgical EPO and post-surgical troponin I or CK-MB peaks (p Pearson > 0.05). Furthermore, patients treated with EPO did not show differences compared to the control group in either troponin I (1.7±1.8 vs 2.6±3.4, p>0.05) or CK-MB (19.6 ±13.2 vs 17.1±12.6, p>0.05) peaks measured in the post-surgical period.

Key Words: epoetin alpha • erythropoietin • ischaemia • myocardial reperfusion injury

Perfusion, Vol. 23, No. 3, 187-192 (2008)
DOI: 10.1177/0267659108097627


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