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Year : 2015  |  Volume : 7  |  Issue : 1  |  Page : 58-62

Perioperative prostate specific antigen levels among coronary artery bypass grafting patients: Does extracorporeal circulation and body temperature induce prostate specific antigen levels alterations?

1 Department of Urology, School of Medicine, Democritus University of Thrace, Dragana, 68100 Alexandroupolis, Greece
2 Department of Cardiac Surgery, Cardiac Surgery ICU, "Evangelismos" General Hospital of Athens, Greece
3 Department of Cardiac Surgery, Heart and Chest Hospital, Thomas Drive, Liverpool L14 3 PE, United Kingdom
4 Department of Cardiac Surgery, "Evangelismos" General Hospital of Athens, 10646 Athens, Greece

Correspondence Address:
Konstantinos Giakoumidakis
Cardiac Surgery ICU, "Evangelismos" General Hospital of Athens, 45 47 Ipsilantou Street, 10646, Athens
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DOI: 10.4103/0974-7796.148619

PMID: 25657546

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Purpose: The purpose of this study is to compare the perioperative total prostate specific antigen (tPSA) levels among coronary artery bypass grafting (CABG) patients with and without extracorporeal circulation (ECC), to investigate the changes overtime of tPSA in each group separately and to determine the effect of body core temperature on tPSA levels. Materials and Methods: A prospective study was conducted. Our sample was allocated to: (a) Seven patients who underwent off pump CABG (Group I) and (b) 16 CABG patients with ECC (Group II). The levels of tPSA were measured preoperatively (baseline), intra-operatively and at the 4 th postoperative day. We compared the two groups on their tPSA levels and we investigated the changes of tPSA overtime in each group separately. Results: Intra-operative serum samples were obtained in significantly lower body temperature in patients of Group II than in those of Group I (31°C vs. 36.9°C, P < 0.001). In each group separately , postoperative tPSA levels were increased significantly compared to the baseline values (2.55 ng/ml vs. 0.39 ng/ml for Group I, P = 0.005 and 4.36 ng/ml vs. 0.77 for Group II, P < 0.001). CABG patients with ECC had significantly lower intra-operative tPSA levels than the baseline values (0.67 ng/ml vs. 0.77 ng/ml, P = 0.008). We did not observe significant differences of tPSA levels between the two groups. Conclusions: CABG surgery affects similarly the perioperative tPSA independently the involvement of ECC. Although all patients had significantly higher early postoperative tPSA levels, only those who underwent CABG with ECC had exceeded normal values and significantly decreased intra-operative tPSA. Hypothermia seems to be the causal factor of tPSA reduction.

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