The Use of N-Terminal-Pro-BNP in Preterm Infants

Table 1

Reference ranges for NTpBNP.

Study	N	Age range/source	Kit	NTpBNP levels
Mir et al. [20]	153	Day 1	Biomedica	Mean: 641 pmol/L
		Venous/cord		Range: 254–1272
Mir et al. [20]	153	Day 3	Biomedica	Mean: 246
		Venous/cord		Range: 110–430 pmol/L
Nir et al. [22]	43	0–2 days	Elecsys	Median: 376 pmol/L
			1010/2010	Range: 30–1560 pmol/L
Bar-Oz et al. [23]	122	Day 1	Elecsys	Mean: 68 pmol/L
		Cord blood	1010/2010	SD: 41 pmol/L
Bar-Oz et al. [23]	33	Day 1	Elecsys	Mean: 359 pmol/L
		Plasma	1010/2010	SD: 210 pmol/L
Schwachtgen et al. [30]	62	Day 1	ECLIA	Mean: 97 pmol/L
		Cord blood	Roche	Range: 33–306 pmol/L
Hammerer-Lercher et al. [31]	42	Day 1	Elecsys	Mean: 65 pmol/L
		Cord blood	1010	IQR: 49–98 pmol/L
Bakker et al. [32]	67	32–42wk	Elecsys	Mean: 79.5 pmol/L
		Cord blood	2010	SD: 42.9 pmol/L
Rauh and Koch [33]	13	<1 month	Elecsys	Range: 132–913 pmol/L
		Plasma
Soldin et al. [34]	40 ♂	<31Days	Dade RxL	97.5th percentile: 3352 pmol/L
		Plasma	Dimension
Soldin et al. [34]	53 ♀	<31days	Dade RxL	97.5th percentile: 4940 pmol/L
		Plasma	Dimension
EL-Khuffash et al. [25]	80	12 hours of life	Elecsys	Mean: 1273 pmol/L
		<1500 grams	2010	IQR: 664–2798 range: 94–10700