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Table 3 LUS score, respiratory dynamics, daily fluid balance volume and the change in LUS score in with (CRRT) and without hemofiltration (Non-CRRT) group

From: Lung ultrasound score assessing the pulmonary edema in pediatric acute respiratory distress syndrome received continuous hemofiltration therapy: a prospective observational study

Parameters CRRT (n = 37) Non-CRRT (n = 33)
1 2 3 4 P 1 2 3 4 P
LUS 18 (16–20)a 22 (18–25)a 18 (16–22)a 14 (12–18)b < 0.001 14 (12–16) 14 (12–16) 14 (10–17) 12 (9–16) 0.154
OI 13.15 (10.00–14.78)a 15.85 (13.54–17.46)a 11.63 (10.24–14.47)a 9.47 (8.63–10.50)b < 0.001 7.69 (6.46–9.50) 8.84 (8.25–10.18) 8.60 (7.56–11.05) 8.12 (6.85–10.45) 0.242
PaCO2, mmHg 45 (35–62) 42 (38–50) 40 (38–45)b 40 (38–45) 0.078 55 (38–61) 46 (41–52) 45 (40–50) 42 (38–45) 0.006
Cdyn, ml/cmH2O/kg 0.38 (0.31–0.58)a 0.40 (0.30–0.42)a 0.44 (0.38–0.56)a 0.60 (0.51–0.66) < 0.001 0.61 (0.46–0.72) 0.61 (0.50–0.71) 0.60 (0.44–0.68) 0.63 (0.45–0.70) 0.315
PEEP, cmH2O 12 (11–14)a 14 (13–15)a 12 (11–14)a 10 (9–11)a < 0.001 9 (8–10) 9 (8–10) 9 (8–11) 8 (8–10) 0.055
Daily fluid balance volume, ml/kg   17.00 (8.50–22.50)a − 16.00 [− 20.00–(− 12.00)]a − 10.00 [− 16.50–(− 8.50)]b < 0.001   0 (− 9.00–10.50) − 6.00 (− 10.00–0) − 7.00 [− 11–5.50] 0.076
Change in LUS score   2 (2–4)b − 3 [− 5–(− 1)]b − 3 [− 6–(− 2)]b < 0.001   1 (− 2–3) 0 (− 3–1) − 1 (− 3–1) 0.221
  1. The values of daily fluid volume and change in LUS score are as following 2nd–1st, 3rd–2nd, 4th–3rd
  2. aP < 0.001 for CRRT group vs. Non-CRRT group
  3. bP < 0.05 for CRRT group vs. Non-CRRT group