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Arch Dis Child Fetal Neonatal Ed 80:F26-F29 doi:10.1136/fn.80.1.F26
  • Original article

Measurement of protein flux with positron emission tomography in neonates

Table 2

Clinical and PET data for infants with RDS

No Weight (g) Gestational age (weeks) Race Sex Age at scan 1 (h) Surfactant a:A ratio2-150 Radiography PTCER (10−4/min)
Scan 1 Scan 2 Scan 1 Scan 2
15 1000 26 B M 3 N 0.59 0.26 Moderate 125 80
16 930 27 W F 8 N 2-151 2-151 Mild 147 119
17 1020 29 W M 13 N 2-151 2-151 Mild 71 61
18 1495 30 B F 10 N 0.26 0.26 Mild 121 130
19 2400 35 W F 17 N 2-151 2-151 Mild 146 2-152
20 2450 35 W M 7 N 0.35 0.66 Mild 71 149
21 2600 35 W M 14 N 0.19 0.18 Severe 161 162
22 940 27 W M 9 Y 0.49 0.46 Mild 225 192
23 1420 31 W F 8 Y 0.14 0.45 Severe 142 216
24 2178 35 W F 21 Y 0.18 0.31 Moderate 103 174
25 2800 35 W F 18 Y 0.13 0.29 Severe 129 2-152
26 2735 36 W M 22 Y 0.16 0.36 Moderate 145 219
Mean (SD) 1.8
 (0.8) kg 		32
(4) 		12
(6) 		0.28 (0.16) 0.36 (0.14) 132 (39) 160 (45)

  • ↵2-150 a:A ratio = arterial-alveolar oxygen ratio: PaO2/[FiO2(713)−PaCO2].

  • ↵2-151 Arterial blood gases not available.

  • ↵2-152 Only one scan performed.

  • CXR = chest radiograph - mild disease, granular appearance - moderate disease, air bronchograms - severe disease, opacification of lung field.

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