Application of urinary bladder temperature monitoring among patients with different cardiac operations

Abstract

Objective To investigate the value of urinary bladder temperature monitoring among patients with cardiac surgery, and provide reference for clinical perioperative temperature nursing. Methods A total of 60 patients undergoing open cardiac surgery of beating coronary artery bypass grafting (30 with extracorporeal circulation and 30 without extracorporeal circulation) were included in our study during the period of October 2010 to October 2013. Body temperature was monitored at 9 time points during the operation at urinary bladder (BT), rectum (RT), lower esophagus (LT) and nasopharynx (NT), axillary cavity (AT), and compared and analyzed with standard blood temperature (BT) after inserting Swan-Ganz catheter. Results During open cardiac surgery of without extracorporeal circulation, different time of BT, RT, NT, LET had a uniformity of temperature change with blood temperature with no statistical significance (P>0.05), but the AT was lower than BT. In the open cardiac surgery of extracorporeal circulation, the differences between UT, LT, RT and BT had no statistical significance during constant temperature period (P>0.05). During the rapid decrease phase of BT and end of rewarming phase, we painted Bland-Altman picture for different part of body temperature with BT, found that the the difference between LT and BT were (-7.23±2.70) and (0.25±1.05)℃, the difference between RT with BT were (-1.38±1.19), (0.96±2.11)℃, and the difference between UT and BT were (0.37±1.24), (0.52±1.28)℃. Conclusions DynamicUBT monitoring can effecitively reflect core temperature in heart surgery, especially during the temperature rapid decrease phase and rewarming phase for the open cardiac operation of extracorporeal circulation, it is important to guide body temperature nursing in clinical. Key words: Urinary bladder temperature; Dynamic monitoring; Cardiac surgery