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Table 2 Preoperative demographic data in patients with and without carotid artery stenosis (CAS)

From: Retrospective evaluation of the effect of carotid artery stenosis on cerebral oxygen saturation during off-pump coronary artery bypasses grafting in adult patients

 

Patients with CAS (n = 9)

Patients without CAS (n = 14)

P-value

Age (yr)

67 [11]

69 [7]

0.797

Gender (Male/Female)

8/1

9/5

0.340

Body mass index (kg/m2)

22 [2]

23 [4]

0.092

Preoperative complications (n)

   

 Cerebral infarction and/or TIA

9 [100.0%]

2 [14.3%]

<0.001

 Hypertension

7 [77.8%]

12 [85.7%]

1.000

 Diabetes mellitus

7 [77.8%]

8 [57.1%]

0.659

 Hyperlipidemia

2 [22.2%]

3 [21.4%]

1.000

 Chronic kidney disease on hemodialysis

2 [22.2%]

3 [21.4%]

1.000

 Congestive heart failure

2 [22.2%]

0 [0.0%]

0.142

 Atrial fibrillation

0 [0.0%]

0 [0.0%]

–

Preoperative cardiac evaluation

   

 Left ventricular ejection fraction (%)

58 [22 – 67]

57 [31 – 74]

0.387

 Mitral regurgitation (grade*)

0 [0 – 3]

0 [0 – 3]

0.607

 Aortic regurgitation (grade*)

0 [0 – 2]

0 [0 – 2]

0.823

Preoperative hemodynamic data

   

 HR (beats/min)

76 [9]

70 [11]

0.181

 MAP (mmHg)

89 [15]

96 [15]

0.293

Preoperative rSO2 (Left/Right) (%)

60 [8]/60 [9]

63 [10]/65 [9]

0.422

Preoperative hemoglobin (g/dl)

11.0 [0.8]

10.6 [1.4]

0.488

  1. Data are mean [SD], number, number [proportion] or median [range]
  2. TIA transient ischemic attack, HR heart rate, MAP mean arterial pressure, rSO2 regional cerebral tissue oxygen saturation *Grade of regurgitation: 0 = none, 1 = trivial, 2 = mild, 3 = moderate, 4 = severe