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Table 2 Patients’ data by ICU chart review in the Dex and the non-Dex groups

From: Dexmedetomidine sedation during the nighttime reduced the incidence of postoperative atrial fibrillation in cardiovascular surgery patients after tracheal extubation

  Day 1 Day 2
  Dex group (n = 16) Non-Dex group (n = 29) p value Dex group (n = 16) Non-Dex group (n = 27) p value
Dex dose (μg/kg/h) 0.3 ± 0.1 0   0.3 ± 0.2 0  
HR daytime (bpm) 79.5 ± 7.4 84.2 ± 12.8 0.18 79.0 ± 8.7 82.8 ± 14.9 0.37
HR nighttime (bpm) 73.5 ± 13.0 84.4 ± 9.3 0.002 69.9 ± 11.3 84.3 ± 9.6 <0.001
CVP (mmHg) 6.6 ± 2.7 7.5 ± 2.7 0.36 6.9 ± 2.4 7.5 ± 3.4 0.59
Body temperature (°C) 37.5 ± 0.4 37.7 ± 0.4 0.08 37.5 ± 0.5 37.6 ± 0.4 0.27
WBC (103/μl) 12.3 ± 4.8 11.8 ± 4.3 0.76 10.5 ± 4.7 10.2 ± 3.3 0.80
CRP (mg/dl) 8.8 ± 4.6 9.2 ± 5.1 0.82 7.8 ± 4.4 8.2 ± 4.0 0.76
Catecholamine use 3 μg/kg/m 2/16 9/29 0.17 5/16 5/27 0.27
Beta-blocker use 8/16 13/29 0.74 8/16 13/27 0.91
Amount of fentanyl (μg) 383.1 ± 339.2 429.3 ± 346.7 0.67 121.9 ± 140.6 179.3 ± 231.9 0.37
  1. The data are presented as mean ± standard deviation or the number of patients (%). Day 1: 24 h from 8 p.m. on the extubation day to 8 p.m. on the next day. Day 2: 24 h from 8 p.m. on the next day to 8 p.m. 2 days later following the extubation day. Catecholamine: dopamine and/or dobutamine
  2. ICU intensive care unit, Dex dexmedetomidine, HR heart rate, CVP central venous pressure, WBC white blood cell count, CRP serum level of C-reactive protein