[Long-term survival of preterm neonates]

Vanilla odor promotes oral feeding in premature infants-A randomized controlled trial

PROPOSE

Introducing early oral feeding in premature infants is important because it supports intestinal maturation and helps prevent infections. In addition, early oral feeding is likely to contribute to improved neurocognitive outcomes in preterm infants. Several holistic therapeutic strategies have been developed to improve feeding skills, food tolerance, and the ability to drink independently, including practices such as early breastfeeding, oral stimulation, and subsequent olfactory stimulation. Based on several studies using olfactory stimulation with food odors (vanilla, breast milk) to promote oral feeding in preterm infants this study was conducted to test the following hypothesis: Does olfactory stimulation with vanilla or milk odor (breast milk or formula) lead to a reduction in the time required for nasogastric tube weaning in premature infants older than 26 + 6 weeks of gestational age? In addition, does it influence secondary outcomes such as length of hospital stay, weight development, and attainment of greater amounts of independently consumed food?

METHODS

Premature with complete or partial feeding by gastric tube and without ventilation were included. For this study, 207 infants over 26 + 6 gestational weeks were randomized into three different study groups. Before each feeding, an olfactory presentation was made with milk odor, a vanilla Sniffin' Stick, or a control stick. In the final analysis, 165 infants were included (87 males, 78 females). At the time of randomization, infants were on average 12 ± 9.5 days old.

RESULTS

While the influence of vanilla and milk odor did not provide a significant difference from the control for the primary outcome, a secondary analysis showed a significant group difference in the cumulative amount of independently drunk food consumed in the first ten days was the highest amount in the vanilla group. This time period was chosen due to the high dropout rate after the first ten days. In addition, there was a promising significance for earlier hospital discharge for prematurely below 32 weeks of gestation receiving vanilla odor stimulation in comparison to milk odor stimulation.

CONCLUSION

Although the primary outcome of this study (gastric tube removal) did not provide significant results, a significant benefit of vanilla olfactory stimulation for preterm infants was demonstrated in subgroup analysis above milk odor stimulation. Younger preterm infants seem to benefit from the stimulation.

Adults Born Preterm: Long-Term Health Risks of Former Very Low Birth Weight Infants

BACKGROUND

Advances in neonatology now enable increasing numbers of very low birth weight neonates (<1500 g) to survive into early adulthood and beyond. What are the implications for their long-term care?

METHODS

Selective literature search on the outcome of very low birth weight neonates in adulthood ("adults born preterm").

RESULTS

Robust data are available on the pulmonary, metabolic, cardiovascular, renal, neurocognitive, sensory-visual, social-emotional, mental, reproductive, and musculoskeletal long-term risks. On the somatic level, elevated rates have been documented for asthma (odds Ratio [OR] 2.37), diabetes mellitus (OR 1.54), and chronic renal disease (hazard ratio [HR] 3.01), along with the cardiovascular and cerebrovascular sequelae of a tendency toward arterial hypertension. On the psychosocial level, the main findings are deficits in romantic partnerships (OR 0.72) and a lower reproduction rate (relative risk [RR] male/female 0.24/0.33). The affected women also have an elevated risk of preterm delivery.

CONCLUSION

A risk profile with both somatic and psychosocial aspects can be discerned for adults who were born prematurely, even if some of these risks are present in low absolute numbers. As the ability to compensate for latent deficits declines with age, such adults may suffer from "premature aging as the late price of premature birth." A holistic approach to care with personalized prevention strategies-which for most of them was discontinued at discharge from pediatric follow-up-therefore seems appropriate in adulthood as well.

Lost in Transition: Health Care Experiences of Adults Born Very Preterm-A Qualitative Approach

Introduction: Adults Born Very Preterm (ABP) are an underperceived but steadily increasing patient population. It has been shown that they face multiple physical, mental and emotional health problems as they age. Very little is known about their specific health care needs beyond childhood and adolescence. This article focuses on their personal perspectives: it explores how they feel embedded in established health care structures and points to health care-related barriers they face.

Methods: We conducted 20 individual in-depth interviews with adults born preterm aged 20–54 years with a gestational age (GA) below 33 weeks at birth and birth weights ranging from 870–1,950 g. Qualitative content analysis of the narrative interview data was conducted to identify themes related to self-perceived health, health care satisfaction, and social well-being.

Results: The majority (85%) of the study participants reported that their former prematurity is still of concern in their everyday lives as adults. The prevalence of self-reported physical (65%) and mental (45%) long-term sequelae of prematurity was high. Most participants expressed dissatisfaction with health care services regarding their former prematurity. Lack of consideration for their prematurity status by adult health care providers and the invisibility of the often subtle impairments they face were named as main barriers to receiving adequate health care. Age and burden of disease were important factors influencing participants' perception of their own health and their health care satisfaction. All participants expressed great interest in the provision of specialized, custom-tailored health-care services, taking the individual history of prematurity into account.

Discussion: Adults born preterm are a patient population underperceived by the health care system. Longterm effects of very preterm birth, affecting various domains of life, may become a substantial burden of disease in a subgroup of formerly preterm individuals and should therefore be taken into consideration by adult health care providers.

[Differences in Conflict-Based Play Behavior, Socio-Emotional and Cognitive Development of Preterm Children Compared to Full-Term Children at Preschool Age]

Differences in Conflict-Based Play Behavior, Socio-Emotional and Cognitive Development of Preterm Children Compared to Full-Term Children at Preschool Age Preterm children are at increased risk for socio-emotional and cognitive developmental difficulties at preschool age. This study investigates whether preterm children (n = 50) at the age of five years show different socio-emotional competencies in conflict situations and in the corresponding conflict resolution capacity in comparison to full-term children (n = 50). For this purpose, the MacArthur Story Stem Battery was used as the central examination method. In addition, parents completed the Strengths and Difficulties Questionnaire to obtain information about the children's behavior; moreover, the Wechsler Preschool and Primary Scale of Intelligence - Third Edition was applied to examine cognitive development. The parental reports did not reveal any behavioral differences between preterm and term children. However, significant group differences regarding their play behavior were detected. In their narratives, preterm children included content themes of interpersonal conflict and dysregulation more frequently compared to term born controls. Concerning empathic and moral themes and narrative coherence, no group difference could be detected. This could indicate that preterm children show no clinically manifest behavioral disorders at preschool age, but differences concerning intrapsychic experience compared to controls. In addition, preterm children had significantly lower IQ scores than term-born controls. Gestational age was a significant predictor of IQ and hyperactivity and attention problems. The results clarify the need for long term clinical follow up of preterm children and should be used to provide more specific care and support.

Growth attainment in German children born preterm, and cardiovascular risk factors in adolescence. Analysis of the population representative KiGGS data

AIM

To compare the growth attainment of preterm children and their cardiovascular risk factors at adolescence with the values measured in term children in Germany.

METHODS

About 17,641 children aged 0 to <18 years were studied between 2003 and 2006 in the population representative German KiGGS survey ("German Health Interview and Examination Survey for Children and Adolescents") using questionnaires, physical examinations, standardized anthropometric and blood pressure measurements, and blood sample analyses. Analysis of covariance (ANCOVA) was employed for the analyses of anthropometric parameters.

RESULTS

About 11.8% of the 16,737 children with complete and valid data had been born preterm. After adjustment for covariates the estimated z-scores over the total age range were larger in term compared to preterm children for length/height (P<0.001; estimated difference B=0.277, 95% CI 0.191-0.362), head circumference (P<0.001; B=0.238, 95% CI 0.144-0.333), BMI (P=0.001; B=0.160, 95% CI 0.069-0.252), and skinfold thickness (P=0.220; B=0.058, 95% CI -0.035 to 0.151). The onset of pubertal development was slightly (but not significantly) earlier in term compared to preterm children. At 14 to <18 years, anthropometric and biochemical indicators of cardiovascular diseases were not worse in preterm compared to term children.

CONCLUSIONS

Preterm-born German adolescents remained significantly shorter, lighter, and had a smaller head circumference than term-born adolescents, but the risk indicators for cardiovascular diseases were not higher.

The Relevance of Maternal Socioeconomic Characteristics for Low Birth Weight - a Case-Control Study

Introduction: The number of children born underweight (low birth weight, LBW) is increasing despite extensive prevention and screening programmes. The cost is high for the health system, and affected children are burdened with health predictors that can affect them negatively throughout their lives. This study investigates to what extent socioeconomic factors, in addition to known medical causes and the health behaviour of pregnant women, influence LBW. Materials and Methods: In this case-control study 131 mothers of singletons with a birth weight ≤ 2500 g (cases) and 323 mothers of normal birth weight babies (controls) were interviewed with respect to socioeconomic status, health behaviour and stress in the workplace. Medical data were collected by specialist staff using a questionnaire. Results: Independent of medical diagnosis and health behaviour, women with lower level education (OR [95 % CI] = 2.24 [1.12; 4.51]) and those who were not working (OR [95 % CI] = 1.82 [1.10; 3.00]) were more likely to have an LBW baby. No effect was shown for immigrant background (OR [95 % CI] = 1.14 [0.59; 2.21]) or stress in the workplace (OR [95 % CI] = 1.17 [0.90; 1.51]). Discussion and Conclusion: These results show that the association between social and health inequalities starts from before birth. In order to reduce the rising number of babies born underweight, socioeconomic determinants in the care and supervision of pregnant women should systematically receive more attention to enable appropriate early preventive strategies to be implemented.

[Quality analyses of the development of preterm infants: results of the Lower-Saxonian preterm infant follow-up project and a comparison group of term infants]

Based on perinatal and neonatal quality assurance programmes, a follow-up project for the high-risk group of extremely preterm infants, unparalleled in Germany, was initiated in the federal state of Lower Saxony in 2004. Here we describe the new approach of examining a comparison group of term infants, which, for the first time, allows a valid interpretation of the collection of area-wide long-term outcome data on preterm children. The prospective long-term outcome project investigates the medical care situation for children born at less than 28 weeks of gestation up to school age. Based on the information obtained about the children's development the quality of health care will be optimised. A standardised examining concept with established development tests at defined follow-up intervals (at the age of 6 months, 2, 5 and 10 years) is used. At the age of five years 75 % of the examined premature children exhibited impairments. In order to better assess remarkable results, a comparison group of term infants (n=305) selected by a matched-pairs method was examined at the age of five using an analogous concept in kindergartens in Lower Saxony. The results were compared with the first two age cohorts of the follow-up-project (n=226) and quality analyses performed. As expected, significant differences have been found in the children's motor, cognitive and linguistic development between the preterm and term infants examined. This fact draws attention to the importance of early support for the majority of extremely premature infants. Feedback on the results given to the medical staff involved allows for the implementation of best practices and quality improvements. Identifying potential for improvement in everyday health care will help to develop specific optimisation measures.