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Table 3 Operative and postoperative characteristics

From: The effect of body mass index on short-term outcomes in patients undergoing off-pump coronary artery bypass grafting surgery: a retrospective study from a single cardiovascular center

Variables

Group LN

(n = 385)

Group OVW

(n = 501)

Group OBS

(n = 120)

P

P1

P2

P3

Operative characteristics

 Fluid input (ml/kg)

24.5 (10.8)

19.9 (9.2)

21.6 (7.1)

< 0.001*

< 0.001*

< 0.001*

0.027*

 Epinephrine

29 (10.5)

55 (11.5)

24 (9.6)

0.741

-

-

-

 Dopamine

144 (52.0)

240 (50.0)

141 (56.6)

0.238

-

-

-

 Milrinone

24 (8.7)

32 (6.7)

17 (6.8)

0.580

-

-

-

 Norepinephrine

54 (19.5)

86 (17.9)

44 (17.7)

0.839

-

-

-

 Nitroglycerin

178 (64.3)

318 (66.3)

168 (67.5)

0.735

-

-

-

 Surgery duration, min

208.6 (47.0)

206.9 (46.7)

213.5 (45.1)

0.188

-

-

-

 Anesthesia duration, min

259.3 (51.8)

255.1 (48.8)

263.7 (50.1)

0.083

-

-

-

Postoperative characteristics

 Bleeding within 24 h (ml/kg)

9.0 (5.2)

8.0 (6.1)

6.9 (4.8)

< 0.001*

0.022*

< 0.001*

0.011*

 Total bleeding (ml/kg)

17.9 (11.7)

14.9 (9.9)

12.1 (8.2)

< 0.001*

< 0.001*

< 0.001*

0.001*

 Chest drainage duration, d

4.7 (2.2)

4.7 (2.4)

4.6 (1.8)

0.767

-

-

-

 Reoperation for bleeding

3 (1.1)

6 (1.3)

2 (0.8)

0.927

-

-

-

 Postoperative hemoglobin (g/L)

114.7 (57.7)

116.2 (17.6)

118.4 (18.4)

< 0.001*

0.001*

< 0.001*

0.353

 Postoperative platelet count (109/L)

187.7 (63.8)

187.3 (55.6)

192.9 (61.7)

0.451

-

-

-

 Red blood cell transfusion rate

9 (3.2)

5 (1.0)

5 (2.0)

0.095

-

-

-

 Fresh frozen plasma transfusion rate

10 (3.6)

9 (1.9)

6 (2.4)

0.341

-

-

-

 Platelet concentrates transfusion rate

0

0

0

NA

-

-

-

 Any transfusion rate

16 (5.8)

14 (2.9)

9 (3.6)

0.145

-

-

-

 Mechanical ventilation duration (h)

20.6 (15.5)

17.5 (11.4)

18.4 (12.8)

0.006*

0.001*

0.001*

1

 Length of stay in ICU (h)

70.2 (47.0)

66.7 (58.9)

64.5 (44.2)

< 0.001*

0.001*

0.001*

0.056

 Readmission to ICU

5.0 (1.8)

4 (0.8)

3 (1.2)

0.891

-

-

-

 Length of stay in the hospital, d

8.3 (2.9)

8.5 (5.4)

8.54 (4.3)

0.832

-

-

-

  1. Values are median (SD) or n (%). P1, Group LN versus Group OVW; P2, Group LN versus Group OBS; P3, Group OVW versus Group OBS
  2. * means a difference on comparison with two groups with p < 0.05
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Journal of Cardiothoracic Surgery

ISSN: 1749-8090

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