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Table 2 Attributes of included trials with peri-operative patients

From: Meta-analysis of hemodynamic optimization: relationship to methodological quality

Study

Population

Intervention

Blinding

Allocation concealment

Co-interventions

Crossover

Mortality end-point

Score

Goals of treatment

Schultz et al. 1985 [32]

Hip fractured patients

Fluids and inotropes peri-operatively

No

Adequate

Not described

Unclear

Yes

8

LVSW/PCWP optimized according to normogram

Shoemaker et al. 1988 [3]

High-risk surgical patients

Fluids and inotropes begun pre-operatively

No

Inadequate

Not described

Unclear

Yes

5

CI > 4.5, DO2 > 600, VO2 > 170

Berlauk et al. 1991 [35]

Peripheral vascular surgical patients

Fluids, afterload reduction and inotropes

No

Adequate

Not described

Unclear

Yes

9

CI > 2.8, 8 < PCWP < 15, SVR 1,100

Fleming et al. 1992 [24]

Trauma patients

Fluids, blood and dobutamine

No

Inadequate

Not described

>10%

Yes

7

CI > 4.5, DO2 > 670, VO2 > 166

Boyd et al. 1993 [25]

High-risk surgical patients

Fluids and dopexamine

No

Adequate

Described, but not equal

Unclear

Yes

10

DO2 > 600

Bishop et al. 1995 [26]

Cardiac surgical patients

Fluids and dobutamine

No

Adequate

Not described

>10%

Yes

10

CI > 4.5, DO2 > 670, VO2 > 166, PCWP 18

Mythen and Webb 1995 [33]

Cardiac surgical patients

Fluids

No

Adequate

Not described

Unclear

Yes

8

SV optimized

Bender et al. 1997 [36]

Elective vascular surgical patients

Fluids, blood, vasodilators, nitroprusside and dopamine

No

Adequate

Not described

Unclear

Yes

8

8 PCWP 14, CI 2.8, SVR 1,100

Ziegler et al. 1997 [29]

Elective vascular surgical patients

Fluids, blood, inotropes and vasodilators

No

Adequate

Not described

Unclear

Yes

9

SvO2 > 65, PCWP > 12, Hb > 10

Sinclair et al. 1997 [34]

Hip fractured patients

Fluids

No

Adequate

Not described

>10%

Yes

8

SV optimized to 0.35 < FTc < 0.40

Valentine et al. 1998 [37]

Elective aortic surgical patients

Fluids, nitroprusside, nitroglycerine and dopamine

No

Adequate

Not described

Unclear

Yes

10

CI > 2.8, 8 PCWP 15, SVR 1,100

Ueno et al. 1998 [12]

Elective hepatic surgical patients

Fluids and dobutamine

No

Adequate

Not described

Unclear

No

7

CI > 4.5, DO2 > 600, VO2 > 170

Boldt et al. 1998 [38]

Pancreatic surgical patients

Dopexamine

Yes

Adequate

Not described

Unclear

No

8

MAP 70, CI > 2.5, 12 < PCWP < 14

Wilson et al. 1999 [13]

High-risk surgical patients

Dopexamine or noradrenaline

Yes

Adequate

Described, but not equal

Unclear

Yes

12

DO2 > 600

Lobo et al 2000 [23]

High-risk surgical patients

Fluids and dobutamine

No

Adequate

Described, but not equal

>10%

Yes

11

DO2 > 600

Velhamos et al. 2000 [14]

Trauma surgical patients

Fluids, blood, inotropes and vasopressors

No

Adequate

Not described

>10%

Yes

11

CI > 4.5, DO2 > 600, VO2 > 170, SpO2/FiO2 > 200

Polonen et al. 2000 [31]

Cardiac surgical patients

Fluids, blood and inotropes

No

Adequate

Not described

>10%

Yes, but secondary

7

SvO2 > 70, lactate levels < 2.0

Takala et al. 2000 [15]

High-risk surgical patients

Fluids, blood and dopexamine

Yes

Adequate

Not described

>10%

Yes

13

DO2 > 600

Bonazzi et al. 2002 [28]

Elective vascular surgical patients

Fluids, inotropes, vasodilators

No

Adequate

Adequate

Unclear

No

10

CI > 3.0, 10 < PCWP < 18, SVR < 1,450, DO2 > 600

Conway et al. 2002 [39]

Elective gastro-intestinal surgical patients

Fluids

No

Inadequate

Not described

Unclear

Yes

8

CO optimized

Sandham et al. 2003 [40]

High-risk surgical patients

Fluids, blood, inotropes, vasodilators, vasopressors

No

Adequate

Not described

<10%

Yes

11

550 < DO2 < 600, 3.5 < CI < 4.5

  1. CI, cardiac index (l min-1 m-2); DO2, oxygen delivery (ml min-1 m-2); FTc, corrected flow time; Hb, haemoglobin; LVSW, left ventricular stroke work; MAP, mean arterial pressure (mmHg); PCWP, pulmonary capillary wedge pressure; SpO2/FiO2, ratio of oxygen saturation as measured by pulse-oximetry and inspiration oxygen fraction; SV, stroke volume (ml); SvO2, mixed venous oxygen saturation (%); SVR, systemic vascular resistance (dyn s-1 cm-5); VO2, oxygen consumption (ml min-1 m-2).