Diagnosis Accuracy of Mean Arterial Pressure Variation during a Lung Recruitment Maneuver to Predict Fluid Responsiveness in Thoracic Surgery with One-Lung Ventilation
Table 2
Comparison of the hemodynamic profiles of responders and nonresponders.
Group R
Group N
MAP
77.0 (72.0–84.0)
65.5 (60.0–70.0)
75.0 (62.0–81.0)
70.9 ± 10.7
76.7 ± 9.5
74.0 (69.0–80.0)
67.0 (62.0–73.0)
70.5 (68.0–78.0)
69.9 ± 8.3
72.7 ± 8.7
HR
61.5 (57.0–70.0)
59.0 (55.0–66.0)
61.0 (57.0–68.0)
59.0 (57.0–65.0)
57.0 (54.0–63.0)
65.5 (58.0–80.0)
64.0 (58.0–76.0)
65.5 (58.0–78.0)
62.5 (56.0–73.0)
57.0 (53.0–67.0)
CVP
6.5 (6.0–8.0)
9.0 (7.0–11.0)
7.5 (6.0–9.0)
5.5 (4.0–7.0)
7.2 ± 2.9
6.0 (2.3–8.3)
6.0 (5.0–9.8)
6.0 (2.3–8.5)
6.0 (3.3–9.0)
7.7 ± 3.8
CO
4.4 (3.9–5.2)
3.4 (2.3–4.2)
4.3 (3.6–5.2)
3.9 (3.3–4.9)
4.9 (4.3–6.3)
5.6 (4.6–6.2)
4.7 (3.5–5.2)
5.2 (4.0–6.2)
4.7 (3.7–5.3)
4.5 (3.9–5.3)
CI
2.5 (2.2–3.4)
2.0 (1.3–2.5)
2.5 (2.1–3.4)
2.4 (2.0–3.0)
2.9 (2.6–3.5)
3.3 (2.7–4.1)
2.8 (2.2–3.2)
3.2 (2.6–3.8)
2.8 (2.3–3.3)
2.6 (2.2–3.2)
SVI
41.5 (34.0–50.0)
33.0 (24.0–42.0)
41.5 (32.0–48.0)
37.0 (29.0–44.0)
46.5 (40.0–57.0)
46.5 (39.0–55.0)
40.5 (36.0–46.0)
43.5 (39.0–56.0)
40.5 (37.0–53.0)
43.0 (37.0–51.0)
SVV
7.0 (6.0–9.0)
12.5 (8.0–16.0)
8.0 (6.0–10.0)
9.0 (7.0–12.0)
7.0 (5.0–8.0)
7.5 (5.0–10.0)
9.5 (7.0–11.0)
8.0 (6.0–11.0)
9.0 (8.0–11.0)
8.0 (6.0–9.0)
Values are expressed as median values (25%–75%) or means ± SD. compared with group N. Group R, responder group; group N, nonresponder group; , before the lung recruitment maneuver (LRM); , at the point of lowest MAP after LRM; , 3 min after LRM; , prior to administration of colloid solution at 10 mL/kg−1 of ideal body weight; , 5 min following cessation of colloid solution administration; MAP, mean arterial blood pressure; HR, heart rate; CVP, central venous pressure; CO, cardiac output; CI, cardiac index; SVI, stroke volume index; SVV, stroke volume variation.
