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Weeks Post-menstrual Age (week + post-menstrual_age)
Selected AbstractsHeart rate variability in response to pain stimulus in VLBW infants followed longitudinally during NICU stayDEVELOPMENTAL PSYCHOBIOLOGY, Issue 8 2009Nikhil S. Padhye Abstract The objective of this longitudinal study, conducted in a neonatal intensive care unit, was to characterize the response to pain of high-risk very low birth weight infants (<1,500,g) from 23 to 38 weeks post-menstrual age (PMA) by measuring heart rate variability (HRV). Heart period data were recorded before, during, and after a heel lanced or wrist venipunctured blood draw for routine clinical evaluation. Pain response to the blood draw procedure and age-related changes of HRV in low-frequency and high-frequency bands were modeled with linear mixed-effects models. HRV in both bands decreased during pain, followed by a recovery to near-baseline levels. Venipuncture and mechanical ventilation were factors that attenuated the HRV response to pain. HRV at the baseline increased with post-menstrual age but the growth rate of high-frequency power was reduced in mechanically ventilated infants. There was some evidence that low-frequency HRV response to pain improved with advancing PMA. © 2009 Wiley Periodicals, Inc. Dev Psychobiol 51: 638,649, 2009 [source] The AWHONN Near-Term Infant Initiative: A Conceptual Framework for Optimizing Health for Near-Term InfantsJOURNAL OF OBSTETRIC, GYNECOLOGIC & NEONATAL NURSING, Issue 6 2005Barbara Medoff-Cooper In June 2005, the Association of Women's Health, Obstetric and Neonatal Nurses launched a multiyear initiative to address the unique physiologic and developmental needs of near-term infants (NTIs) defined as those born between 34 and 37 weeks post-menstrual age. The Optimizing Care for the Near-Term Infant Conceptual Model integrates the concepts of neonatal physiologic functional status, nursing care practices, care environment, and the essential role of the family both in the hospital and beyond. The elements of the model will serve to guide program and resource development within the Near-Term Infant Initiative. Goals of the initiative are to raise awareness of the NTI population's unique needs, emphasize the need for research, encourage development and adoption of evidence-based guidelines to promote safe care, and provide resources that assist nurses and other health care professionals in risk-based assessment of NTIs. [source] Chest radiograph thoracic areas and lung volumes in infants developing bronchopulmonary dysplasiaPEDIATRIC PULMONOLOGY, Issue 1 2009Caroline May MRCPCH Abstract Objectives To determine whether chest radiograph (CXR) thoracic areas and lung volumes differed between infants who did and did not develop BPD and according to the severity of BPD developed. Working Hypothesis Infants developing BPD, particularly if moderate or severe, would have low CXR thoracic areas and lung volumes in the perinatal period. Study Design Prospective study. Patient-Subject Selection 53 infants with a median gestational age of 28 (range 24,32) weeks. Methodology CXR thoracic areas were calculated using a Picture Archiving and Communicating System (PACS) and lung volume assessed by measurement of functional residual capacity (FRC) in the first 72 hr after birth. BPD was diagnosed if the infants were oxygen dependent beyond 28 days, mild BPD in infants no longer oxygen dependent at 36 weeks post-menstrual age (PMA) and moderate/severe BPD in infants who required supplementary oxygen with or without respiratory support at 36 weeks PMA. Results Thirty two infants developed BPD, 21 had moderate/severe BPD. The median CXR thoracic areas were higher (P,<,0.0001) and FRCs were lower (P,<,0.0001) in the BPD compared to no BPD infants. The median CXR thoracic areas of the moderate/severe group (P,<,0.001) and the mild group (P,<,0.05) were greater than that of the no BPD group and the median FRC of the moderate/severe BPD group was lower than the no BPD group (<0.001) and the mild BPD group (P,<,0.05). Conclusion These results highlight that in the perinatal period infants developing BPD, particularly if moderate/severe, have low functional lung volumes and may have gas trapping, which likely reflects ventilation inhomogeneity. Pediatr Pulmonol. 2009; 44:80,85. © 2008 Wiley-Liss, Inc. [source] Improving compliance with pulse oximetry alarm limits for very preterm infants?JOURNAL OF PAEDIATRICS AND CHILD HEALTH, Issue 5 2010Bernice A Mills Objective: To determine if participation in a randomised controlled trial of different oxygen saturation targets improved compliance with oximeter alarm limit guidelines. Design: Eligible infants were born after the commencement of the BOOST II trial. Data on alarm limits were collected on all infants <32 weeks' gestational age or birth weight <1500 g, who were born at The Royal Women's Hospital, Melbourne between February and June 2007, and receiving supplemental oxygen at the time of the audit. The proportions of infants in oxygen with correct alarm limits (upper 94%; lower 85% or 86%) were compared, between those in the BOOST II trial and those who were not, and with an earlier audit. Results: Of 100 infants surveyed, 56 had received oxygen (mean gestational age at birth 26.7 weeks, mean birth weight 913 g). Compliance with lower limits was good in both periods, irrespective of post-menstrual age or participation in the trial. Compliance with upper limits improved after trial commencement, but only for infants enrolled in the trial and only whilst they were <36 weeks' post-menstrual age. Conclusions: Starting a clinical trial of oxygen targeting was associated with improved compliance with upper alarm limits for participants receiving supplemental oxygen, but only whilst they were <36 weeks; with little effect outside the trial. [source] | ||||||||||