Journal
EARLY HUMAN DEVELOPMENT
Volume 85, Issue 12, Pages 779-783Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.earlhumdev.2009.10.007
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Funding
- NIHR Biomedical Research Centre funding scheme
- Garfield Weston foundation
- Medical Research Council
- Philips Healthcare
- MRC [MC_U120061309, G0701896, MC_U120081323, MC_U120088465, G0502100] Funding Source: UKRI
- Medical Research Council [MC_U120088465, MC_U120061309, G0502100, MC_U120081323, G0701896] Funding Source: researchfish
- National Institute for Health Research [ACF-2006-21-028, ACF-2006-18-003] Funding Source: researchfish
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Background: Very low birth weight (VLBW) infants (weight <1500 g) are increasingly cared for without prolonged periods of positive pressure ventilation (PPV). Aims: To develop a system for 3.0 T magnetic resonance (MR) image acquisition from VLBW infants who are not receiving PPV, and to test the clinical stability of a consecutive cohort of such infants. Design: Seventy VLBW infants whose median weight at image acquisition was 940 g (590-1490) underwent brain MR imaging with the developed care system as participants in research. Twenty infants (29%) received nasal continuous positive airway pressure (nCPAP), 28 (40%) received supplemental oxygen by nasal cannulae, and 22 (31%) breathed spontaneously in air during the MR examination. Results: There were no significant adverse events. Seventy-six percent had none or transient self-correcting oxygen desaturations. Desaturations that required interruption of the scan for assessment were less common among infants receiving nCPAP (2/20) or breathing spontaneously in air (2/22), compared with those receiving nasal cannulae oxygen (13/28), p=0.003. Sixty-four (91%) infants had an axillary temperature >= 36 degrees C at completion of the scan (lowest 35.7 degrees C), There was no relationship between weight (p=0.167) or use of nCPAP (p = 0.453) and axillary temperature <36 degrees C. No infant became hyperthermic. Conclusion: VLBW infants who do not require ventilation by endotracheal tube can be imaged successfully and safely at 3.0 T, including those receiving nCPAP from a customised system. (c) 2009 Elsevier Ireland Ltd. All rights reserved.
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