Study

Year

Lower Glycemic Range

Conventional Glycemic Range

Diabetic status

Procedure (s)

Results

Conclusions

Lower limit

(mg/dL)

Upper limit

(mg/dL)

N

Timing

Lower limit

(mg/dL)

Upper limit

(mg/dL)

N

Timing

LGR

CGR

1. Mortality (rate)

Mortality (rate)

RR

2. ICU LOS

(days ± SD)

ICU LOS

(days ± SD)

MD

3. Hospital LOS

(days ± SD)

Hospital LOS

(days ± SD)

MD

Gandhi

2007

80

110

185

Intra-op

Post-op

100

200

186

Intra-op

Mixed

On-pump

CABG

non-CABG

4/185

0/186

RR = 9.04 p = 0.19

No difference in mortality

NR

NR

NR

NR

NR

NR

Blaha

2015

80

110

1134

Intra-op

Post-op

N/A

200

1249

Post-op

Mixed

On-pump/ off-pump CABG Valve replacement

37/1134

48/1249

RR = 0.84

p = 0.45

No difference in mortality, ICU LOS, hospital LOS

4.89 ± 5.50

4.81 ± 4.90

MD = 0.08 p = 0.70

11.7 ± 8.1

12.2 ± 9.4

MD = −0.50

p = 0.17

Hoede- makers 2005

80

110

10

Post-op

N/A

200

10

Post-op

Non-diabetics

On-pump CABG

0/10

0/10

RR = N/A

No difference in mortality or ICU LOS

0.92 ± 0.08

0.85 ± 0.10

MD = 0.08

p = 0.07

NR

NR

NR

Qiang

2014

80

110

33

Post-op

N/A

200

32

Post-op

Non-diabetics

On-pump aortic valve replacement

0/33

2/32

RR = 0.19

p = 0.28

No difference in mortality.

IIT decreased ICU LOS and hospital LOS

1.18 ± 0.30

1.52 ± 0.33

MD = 0.34

p < 0.01

9.4 ± 3.3

11.5 ± 4.2

MD = −2.10

p = 0.03

Liou

2013

90

119

20

Post-op

180

200

30

Post-op

Non-diabetics

On-pump CABG

0/20

0/30

(RR = N/A)

No difference in mortality. IIT decreased hospital LOS

3.8 ± 0.70

4.3 ± 1.00

MD = −0.50

p = 0.53

14.6 ± 3.20

10.3 ± 2

MD = 4.30

p < 0.01

Desai

2012

90

120

91

Post-op

121

180

98

Post-op

Diabetics

On-pump CABG

1/91

1/98

RR = 1.08

p = 0.96

No difference in mortality

NR

NR

NR

NR

NR

NR

Lazar

2011

90

120

40

Intra-op

Post-op

120

180

42

Intra-op

Post-op

Diabetics

On-pump CABG

0

0

RR = N/A

No difference in mortality, ICU LOS, hospital LOS

2.90 ± 0.70

2.70 ± 0.50

MD = 0.06

p = 0.14

10.1 ± 3.5

10.8 ± 3.5

MD = −0.70

p = 0.37

Groban

2002

80

120

188

Intra-op

N/A

200

193

Intra-op

Post-op

Non-diabetics

On-pump CABG

3/188

0/200

RR = 7.16

p = 0.19

No difference in mortality

NR

NR

NR

NR

NR

NR

Total

3023

3167