Neonatal examination and screening trial (NEST): a randomised, controlled, switchback trial of alternative policies for low risk infants

Facilitating discharge from hospital of the healthy term infant

This statement provides guidance for health care providers to ensure the safe discharge of healthy term infants who are born in hospital and who are ≥37 weeks' gestational age. Hospital care for mothers and infants should be family-centred, with healthy mothers and infants remaining together and going home at the same time. The specific length of stay for newborn infants depends on the health of their mother, infant health and stability, the mother's ability to care for her infant, support at home, and access to follow-up care. Many mother-infant dyads are ready to go home 24 h after birth. Parent or guardian education and assessment of discharge readiness are important components of discharge planning. Each infant must have an appropriate discharge plan, including identification of the infant's primary health care provider and assessment by a health care provider 24 h to 72 h after discharge.

The use of the cluster randomized crossover design in clinical trials: protocol for a systematic review

BACKGROUND

The cluster randomized crossover (CRXO) design is gaining popularity in trial settings where individual randomization or parallel group cluster randomization is not feasible or practical. In a CRXO trial, not only are clusters of individuals rather than individuals themselves randomized to trial arms, but also each cluster participates in each arm of the trial at least once in separate periods of time.We will review publications of clinical trials undertaken in humans that have used the CRXO design. The aim of this systematic review is to summarize, as reported: the motivations for using the CRXO design, the values of the CRXO design parameters, the justification and methodology for the sample size calculations and analyses, and the quality of reporting the CRXO design aspects.

METHODS/DESIGN

We will identify reports of CRXO trials by systematically searching MEDLINE, PubMed, Cochrane Methodology Register, EMBASE, and CINAHL Plus. In addition, we will search for methodological articles that describe the CRXO design and conduct citation searches to identify any further CRXO trials. The references of all eligible trials will also be searched. We will screen the identified abstracts, and retrieve and assess for inclusion the full text for any potentially relevant articles. Data will be extracted from the full text independently by two reviewers. Descriptive summary statistics will be presented for the extracted data.

DISCUSSION

This systematic review will inform both researchers addressing CRXO methodology and trialists considering implementing the design. The results will allow focused methodological research of the CRXO design, provide practical examples for researchers of how CRXO trials have been conducted, including any shortcomings, and highlight areas where reporting and conduct may be improved.

Screening programmes for developmental dysplasia of the hip in newborn infants

BACKGROUND

Uncorrected developmental dysplasia of the hip (DDH) is associated with long term morbidity such as gait abnormalities, chronic pain and degenerative arthritis.

OBJECTIVES

To determine the effect of different screening programmes for DDH on the incidence of late presentation of congenital hip dislocation.

SEARCH STRATEGY

Searches were performed in CENTRAL (The Cochrane Library), MEDLINE and EMBASE (January 2011) supplemented by searches of clinical trial registries, conference proceedings, cross references and contacting expert informants.

SELECTION CRITERIA

Randomised, quasi-randomised or cluster trials comparing the effectiveness of screening programmes for DDH.

DATA COLLECTION AND ANALYSIS

Three independent review authors assessed study eligibility and quality, and extracted data.

MAIN RESULTS

No study examined the effect of screening (clinical and/or ultrasound) and early treatment versus not screening and later treatment.One study reported universal ultrasound compared to clinical examination alone did not result in a significant reduction in late diagnosed DDH or surgery but was associated with a significant increase in treatment.One study reported targeted ultrasound compared to clinical examination alone did not result in a significant reduction in late diagnosed DDH or surgery, with no significant difference in rate of treatment.Meta-analysis of two studies found universal ultrasound compared to targeted ultrasound did not result in a significant reduction in late diagnosed DDH or surgery. There was heterogeneity between studies reporting the effect on treatment rate.Meta-analysis of two studies found delayed ultrasound and targeted splinting compared to immediate splinting of infants with unstable (but not dislocated) hips resulted in no significant difference in the rate of late diagnosed DDH. Both studies reported a significant reduction in treatment with use of delayed ultrasound and targeted splinting.One study reported delayed ultrasound and targeted splinting compared to immediate splinting of infants with mild hip dysplasia on ultrasound resulted in no significant difference in late diagnosed DDH but a significant reduction in treatment. No infants in either group received surgery.

AUTHORS' CONCLUSIONS

There is insufficient evidence to give clear recommendations for practice. There is inconsistent evidence that universal ultrasound results in a significant increase in treatment compared to the use of targeted ultrasound or clinical examination alone. Neither of the ultrasound strategies have been demonstrated to improve clinical outcomes including late diagnosed DDH and surgery. The studies are substantially underpowered to detect significant differences in the uncommon event of late detected DDH or surgery. For infants with unstable hips or mildly dysplastic hips, use of delayed ultrasound and targeted splinting reduces treatment without significantly increasing the rate of late diagnosed DDH or surgery.

Effectiveness of neonatal pulse oximetry screening for detection of critical congenital heart disease in daily clinical routine--results from a prospective multicenter study

Pulse oximetry screening (POS) has been proposed as an effective, noninvasive, inexpensive tool allowing earlier diagnosis of critical congenital heart disease (cCHD). Our aim was to test the hypothesis that POS can reduce the diagnostic gap in cCHD in daily clinical routine in the setting of tertiary, secondary and primary care centres. We conducted a prospective multicenter trial in Saxony, Germany. POS was performed in healthy term and post-term newborns at the age of 24-72 h. If an oxygen saturation (SpO(2)) of <or=95% was measured on lower extremities and confirmed after 1 h, complete clinical examination and echocardiography were performed. POS was defined as false-negative when a diagnosis of cCHD was made after POS in the participating hospitals/at our centre. From July 2006-June 2008, 42,240 newborns from 34 institutions have been included. Seventy-two children were excluded due to prenatal diagnosis (n = 54) or clinical signs of cCHD (n = 18) before POS. Seven hundred ninety-five newborns did not receive POS, mainly due to early discharge after birth (n = 727; 91%). In 41,445 newborns, POS was performed. POS was true positive in 14, false positive in 40, true negative in 41,384 and false negative in four children (three had been excluded for violation of study protocol). Sensitivity, specificity, positive and negative predictive value were 77.78%, 99.90%, 25.93% and 99.99%, respectively. With POS as an adjunct to prenatal diagnosis, physical examination and clinical observation, the percentage of newborns with late diagnosis of cCHD was 4.4%. POS can substantially reduce the postnatal diagnostic gap in cCHD, and false-positive results leading to unnecessary examinations of healthy newborns are rare. POS should be implemented in routine postnatal care.

Does lack of routine postnatal examination on maternity unit increase the risk of hospital admission in the first week of life?

OBJECTIVE

The purpose of this study is to establish whether omitting routine postnatal examination on maternity units increases the risk of hospitalisation in the first week of life of the newborn.

STUDY DESIGN

Retrospective analysis of maternal and baby details and paediatric admission data spanning 12 months in the setting of two maternity units and children's admission unit (CAU) at the University Hospitals of Leicester NHS Trust, Leicester, UK looking at all live-born babies not admitted to neonatal units (n = 7,058).

MAIN OUTCOME MEASURES

For babies within first week of life, main outcome measures are: (1) risk of the need to be assessed on CAU and (2) risk of hospitalisation for 48 h.

RESULTS

Babies who had routine postnatal examination on maternity unit (n = 3,631) and babies who had no such examination (n = 3,427) had similar risks of the need to be seen on CAU (3% and 2.4%, respectively; p = 0.057) and of hospitalisation for 48 h (0.82% and 0.67%, respectively; p = 0.22). Babies born to first-time mothers and/or premature were more likely to have postnatal examination on the maternity unit and were at a higher risk of hospitalisation in the first week of life.

CONCLUSIONS

With prudent selection and extended surveillance of at-risk babies, lack of routine postnatal examination on maternity unit did not increase the risks of hospital review or admission in the first week of life. Worryingly, however, as many as 27% of all babies might not have had routine postnatal examination at all.

Maternity care options influence readmission of newborns

AIM

To analyse morbidity and mortality in healthy newborn infants in relation to various routines of post-natal follow-up.

DESIGN

cross-sectional study.

SETTING

maternity care in Sweden.

POPULATION

healthy infants born at term between 1999 and 2002 (n = 197,898).

METHODS

Assessment of post-natal follow-up routines after uncomplicated childbirth in 48 hospitals and data collected from the Swedish Medical Birth Register, Hospital Discharge Register and Cause-of-Death Register.

MAIN OUTCOME MEASURE

neonatal mortality and readmission as proxy for morbidity.

RESULTS

During the first 28 days, 2.1% of the infants were readmitted generally because of infections, jaundice and feeding-related problems. Infants born in hospitals with a routine neonatal examination before 48 h and a home care programme had a readmission rate [OR, 1.3 (95% CI, 1.16-1.48)] higher than infants born in hospitals with routine neonatal examination after 48 h and 24-h care. There were 26 neonatal deaths.

CONCLUSION

Post-delivery care options and routines influence neonatal morbidity as measured by hospital readmission rate. A final infant examination at 49-72 h and an active follow-up programme may reduce the risk of readmission.

Comparing the clinical and economic effects of clinical examination, pulse oximetry, and echocardiography in newborn screening for congenital heart defects: A probabilistic cost-effectiveness model and value of information analysis

Objectives: Congenital heart defects (CHD) are an important cause of death and morbidity in early childhood, but the effectiveness of alternative newborn screening strategies in preventing the collapse or death—before diagnosis—of infants with treatable but life-threatening defects is uncertain. We assessed their effectiveness and efficiency to inform policy and research priorities.

Methods: We compared the effectiveness of clinical examination alone and clinical examination with either pulse oximetry or screening echocardiography in making a timely diagnosis of life-threatening CHD or in diagnosing clinically significant CHD. We contrasted their cost-effectiveness, using a decision-analytic model based on 100,000 live births, and assessed future research priorities using value of information analysis.

Results: Clinical examination alone, pulse oximetry, and screening echocardiography achieved 34.0, 70.6, and 71.3 timely diagnoses per 100,000 live births, respectively. This finding represents an additional cost per additional timely diagnosis of £4,894 and £4,496,666 for pulse oximetry and for screening echocardiography. The equivalent costs for clinically significant CHD are £1,489 and £36,013, respectively. Key determinants of cost-effectiveness are detection rates and screening test costs. The false-positive rate is very high with screening echocardiography (5.4 percent), but lower with pulse oximetry (1.3 percent) or clinical examination alone (.5 percent).

Conclusions: Adding pulse oximetry to clinical examination is likely to be a cost-effective newborn screening strategy for CHD, but further research is required before this policy can be recommended. Screening echocardiography is unlikely to be cost-effective, unless the detection of all clinically significant CHD is considered beneficial and a 5 percent false-positive rate acceptable.

Analysis of cluster randomized cross-over trial data: a comparison of methods

In a cluster randomized cross-over trial, all participating clusters receive both intervention and control treatments consecutively, in separate time periods. Patients recruited by each cluster within the same time period receive the same intervention, and randomization determines order of treatment within a cluster. Such a design has been used on a number of occasions. For analysis of the trial data, the approach of analysing cluster-level summary measures is appealing on the grounds of simplicity, while hierarchical modelling allows for the correlation of patients within periods within clusters and offers flexibility in the model assumptions. We consider several cluster-level approaches and hierarchical models and make comparison in terms of empirical precision, coverage, and practical considerations. The motivation for a cluster randomized trial to employ cross-over of trial arms is particularly strong when the number of clusters available is small, so we examine performance of the methods under small, medium and large (6, 18, 30) numbers of clusters. One hierarchical model and two cluster-level methods were found to perform consistently well across the designs considered. These three methods are efficient, provide appropriate standard errors and coverage, and continue to perform well when incorporating adjustment for an individual-level covariate. We conclude that choice between hierarchical models and cluster-level methods should be influenced by the extent of complexity in the planned analysis.

Gaps in the evidence for well-child care: a challenge to our profession

BACKGROUND

Up to one third of visits to pediatricians involve health supervision (well-child care), and recommendations for office-based preventive interventions have dramatically expanded. We reviewed the evidence for the effectiveness of these interventions.

METHODS

The well-child care recommendations of 7 major North American organizations were tabulated. Three types of health supervision interventions were recommended, ie, behavioral counseling, screening, and prophylaxis. For recommendations common to at least 2 of the 7 organizations, evidence of effectiveness was sought from systematic reviews and clinical trials. Immunizations were not considered for this review, because they have been reviewed elsewhere.

RESULTS

Forty-two preventive interventions were recommended by > or =2 of the organizations. Limited clinical trials show that counseling can change some health risk behaviors; repeated intensive counseling is most likely to be effective. Harmful effects were shown for a few behavioral counseling interventions. Trials have been conducted for only 2 of the recommended screening interventions; therefore, rigorous evidence supporting screening is very limited. Trials support the use of folate to prevent neural tube defects, trials of iron supplementation do not address developmental outcomes, and trials were not found for the other recommended prophylactic interventions.

CONCLUSIONS

Limited direct evidence was found to support the recommended interventions. Because a large number of interventions are routinely recommended and often mandated and because the implementation of any recommendation may cause harm (including the displacement of other beneficial activities), these recommendations should be based on the strongest possible evidence. When recommendations are made, supporting evidence should be clearly stated.

A national survey in England of the routine examination of the newborn baby

OBJECTIVE

To identify current practices for the initial routine examination of healthy newborn babies, and determine the extent to which midwives are carrying out this examination.

DESIGN AND PARTICIPANTS

Postal questionnaires were sent to consultant paediatricians and midwifery managers in all maternity units in England. Questionnaires were also sent to the 12 universities in England which run the N96 post-registration course in the examination of the newborn baby.

FINDINGS

Questionnaires were returned from 197 (86%) maternity units. Senior house officers examined in 83% (160/193) a median of 92% of babies; 44% (74/167) had at least one midwife (median of two) with qualifications to carry out the examination and in 31% (51/167) some examinations were conducted by a midwife. However, a third of midwives with this qualification carried out no examinations, and nationally only about 2% of babies were examined by a midwife. Rates of referral by midwives and senior house officers were similar. Examinations were carried out between four and 48 hours from birth; most units considered six hours an acceptable minimum. An estimated 1% of babies were transferred home without routine examination; the GP was responsible for most (83-93%) of these babies' examinations; midwives for 10-23%; and senior house officers in hospital for 4-7%. Twelve per cent (23/194) of units carried out a second examination prior to discharge. Most respondents were in favour of midwives carrying out the examinations provided they were adequately trained.

CONCLUSIONS

Many of the consultant paediatricians and midwifery managers stated that suitably trained midwives could routinely examine the healthy newborn baby; however, many currently N96 trained midwives were examining few or no babies. An extension of training would be needed were midwife examination to become general policy.

Evidence for risk of bias in cluster randomised trials: review of recent trials published in three general medical journals

OBJECTIVE

To examine the prevalence of a risk of bias associated with the design and conduct of cluster randomised controlled trials among a sample of recently published studies.

DESIGN

Retrospective review of cluster randomised trials published in the BMJ, Lancet, and New England Journal of Medicine from January 1997 to October 2002.

MAIN OUTCOME MEASURES

Prevalence of secure randomisation of clusters, identification of participants before randomisation (to avoid foreknowledge of allocation), differential recruitment between treatment arms, differential application of inclusion and exclusion criteria, and differential attrition.

RESULTS

Of the 36 trials identified, 24 were published in the BMJ,11 in the Lancet, and a single trial in the New England Journal of Medicine. At the cluster level, 15 (42%) trials provided evidence for secure allocation and 25 (69%) used stratified allocation. Few trials showed evidence of imbalance at the cluster level. However, some evidence of susceptibility to risk of bias at the individual level existed in 14 (39%) studies.

CONCLUSIONS

Some recently published cluster randomised trials may not have taken adequate precautions to guard against threats to the internal validity of their design.

Differences in learning objectives during the labour ward clinical attachment between medical students and their midwifery preceptors

OBJECTIVES

Midwives have been actively involved in the clinical teaching of medical students for many years. However, this role has received little attention and limited research has been conducted into either its efficacy or the development of strategies to maximise the potential of such teaching opportunities. We examined medical student and midwifery preceptor attitudes towards students' learning objectives during the labour ward placement.

METHODS

A descriptive cross-sectional survey of midwifery preceptors and medical students was undertaken. The setting was an Australian teaching and tertiary referral hospital. The questionnaire contained questions about strategies to improve medical student involvement on the labour ward and opinions towards core competencies of the student curriculum.

RESULTS

Of 94 questionnaires issued to midwifery preceptors, 63 were returned (response rate 67%). Of 130 questionnaires issued to medical students, 93 were returned (response rate 72%). Major differences in the expectations of students and midwifery preceptors were identified. Only 17% of midwives felt medical students should be involved in helping mothers with breastfeeding, and some no longer saw a role for students in delivering babies or performing well baby checks. These differences in opinions led to student dissatisfaction with their obstetric learning experience.

CONCLUSION

Educators need to ensure that students and midwifery preceptors identify common learning objectives. Failure to address these differences may lead to poor interdisciplinary relationships.

Echocardiographic screening for congenital heart disease: a randomized study

OBJECTIVES

To assess the effectiveness and potential cost of an echocardiographic screening program for congenital heart disease (CHD).

PATIENTS AND METHODS

Between 01/11/94 and 28/02/98 there were 9697 deliveries in The Royal Maternity Hospital Belfast. Mothers were randomized before delivery. 4875 infants were allocated to the scan group, while 4822 were assigned to clinical assessment alone. High-risk infants were considered separately. Cases of CHD detected before hospital discharge were documented. The annual cost of screening was estimated and the time to accurate diagnosis in each group was assessed.

RESULTS

During the study 124 scan allocated infants and 50 controls were identified as having significant CHD before hospital discharge. With a minimum of 3 years follow-up there were 27 additional late diagnoses in controls and 1 in scanned infants. During a single year of the study the mean time to complete diagnosis was 2 days for scanned cases and 110 in controls. The projected cost of screening for all infants was 22 Pounds/infant for the first year.

CONCLUSIONS

Adding echocardiography to clinical examination greatly enhances early detection of CHD. Although screening is expensive, once established it may reduce the cost of unnecessary outpatient referrals.

A qualitative study exploring junior paediatricians', midwives', GPs' and mothers' experiences and views of the examination of the newborn baby

OBJECTIVE

to explore the experiences and attitudes of midwives, junior paediatricians (SHOs), GPs, and mothers to the examination of the newborn baby. To provide an appreciation of their views on several issues, in particular the purpose and value of the examination, who is thought to be appropriate to carry it out and when and where it should take place.

DESIGN

qualitative using semi-structured interviews, which were exploratory and interactive, in order to examine the range and diversity of experiences and attitudes to the neonatal examination.

SETTING

South-east England.

PARTICIPANTS

four samples were purposefully selected to include ten each of midwives, SHOs, GPs and recently delivered mothers. SHOs were currently working in paediatric departments of a district general hospital or teaching hospital and their experience of conducting examinations of the newborn baby ranged from several months to several years. Midwives included both those trained in the examination and currently conducting examinations, and those not so trained and not carrying out the examination. Most of the midwives had been qualified for over ten years and had a wide range of clinical experience in hospital and community settings. The GPs were from ten practices in two Health Authorities and all had some experience of conducting neonatal examinations. Of the mothers, a few had had their babies examined at home by midwives, others in hospital by an SHO. Mothers included those with a family history of problems relevant to the examination, those with previous pregnancy complications and others with no problems or complications. Some were first-time mothers.

FINDINGS

all groups perceived the examination to be a useful screening tool providing reassurance to parents. They considered both midwives and SHOs to be appropriate professionals to carry out the examination, if adequately trained. Most thought that midwives have a better rapport with mothers, are able to provide continuity of care and more often discuss health-care issues than do SHOs. Few SHOs reported receiving any formal training in the examination of the newborn baby.

IMPLICATIONS FOR PRACTICE

the extension of the practice of midwives examining the newborn baby following relevant training would be acceptable to all stakeholders. The implications of increased demands on the midwives' workload may need to be considered.

A randomised controlled trial of maternal satisfaction with the routine examination of the newborn baby at three months post birth

OBJECTIVE

to determine whether any differences in maternal satisfaction with the examination of a newborn baby between midwives and junior paediatricians are maintained over a three-month period.

DESIGN, SETTING AND PARTICIPANTS

randomised controlled trial. Eight hundred and twenty-six mother and baby pairs in a district general hospital in South East England were randomised to a junior paediatrician or a midwife for the routine examination. Four hundred and eighty-six mothers completed a maternal satisfaction questionnaire on day-one and again three-months later. Maternal satisfaction with the examination was analysed in relation to randomised group, process and background variables.

FINDINGS

high satisfaction with the examination was reported by most mothers (day-one: 82%; three-months: 79%). At day-one, mothers whose babies were examined by a midwife were more satisfied with the examination (crude odds ratio (OR) for the lowest tertile of satisfaction 0.49, 95% CI 0.32-0.73). However, after controlling for provision of health education during the examination (e.g. discussing feeding, sleeping and skin care) and continuity of care provided, maternal satisfaction was no longer related to status of examiner (adjusted OR 0.83, 95% CI 0.52-1.33). Three months later, there was no significant difference in maternal satisfaction with midwife and junior paediatrician examinations of the newborn baby (crude OR 0.89, 95% CI 0.58-1.37). Discussion of health-care issues by the examiner during the examination was significantly related to increased satisfaction even at three-months. Three month ratings of low satisfaction with the examination were most strongly predicted by current maternal depressive mood, even when other factors were adjusted for (adjusted OR 2.58, 95% CI 1.19-5.59).

KEY CONCLUSIONS

from the mother's perspective, the quality of midwife examination is at least as satisfactory as that of junior paediatricians and this perception is maintained over a three-month period. Satisfaction can be significantly enhanced if the examiner provides information on behavioural and health-care issues. The examination of the newborn baby provides an important window of opportunity for sharing information on newborn behaviour and care issues.

Routine examination of the newborn and maternal satisfaction: a randomised controlled trial

OBJECTIVE

To determine whether the routine examination of the newborn by a midwife compared with a junior paediatrician (SHO) affects maternal satisfaction with this examination.

METHODS

Randomised controlled trial: 826 mother and baby pairs in a district general hospital in south east England were randomised to a paediatric SHO or a midwife for the routine newborn examination. Maternal satisfaction with the examination was analysed in relation to intervention group, process, and background variables.

RESULTS

Some 81% of mothers reported that they were satisfied or very satisfied with the newborn examination. Mothers assigned to a midwife were more satisfied with the newborn examination (crude odds ratio (OR) 0.54 (95% confidence interval (CI) 0.39 to 0.75), p < 0.001). However, after provision of health education during the examination, continuity of care provided, and history of miscarriage had been controlled for, status of examiner was no longer related to maternal satisfaction (adjusted OR 0.82 (95% CI 0.57-1.20), NS). The discussion of healthcare issues by the examiner (adjusted OR 0.49 (95% CI 0.34 to 0.70), p < 0.001) and continuity of care (adjusted OR 0.43 (95% CI 0.23 to 0.81), p < 0.01) were both related to enhanced satisfaction, and history of miscarriage (adjusted OR 1.61 (1.08 to 2.40), p < 0.05) was associated with lower maternal satisfaction with the newborn examination. Midwives (61%) were more likely than SHOs (33%) to discuss healthcare issues, such as feeding, sleeping, and skin care.

CONCLUSIONS

Mothers were more likely to be satisfied with the newborn examination by a midwife than an SHO because midwives were more likely to discuss healthcare issues during the examination and were able to provide continuity of care. However, midwife examinations according to exclusion criteria agreed with trial midwives excluded half of all newborns, and criteria may have to be reconsidered for practice implementation.

Routine neonatal examination: effectiveness of trainee paediatrician compared with advanced neonatal nurse practitioner

OBJECTIVE

To compare the effectiveness of routine neonatal examination performed by senior house officers (SHOs) and advanced neonatal nurse practitioners (ANNPs).

DESIGN

A prospective study of all infants referred to specialist orthopaedic, ophthalmology, and cardiology clinics. A standardised proforma was used to record details of the professional performing the neonatal check, any abnormalities discovered, source of ultimate referral to the specialist clinic, and specialist findings.

RESULTS

527 eligible infants were recruited. For hip abnormalities, ANNPs displayed greater sensitivity than SHOs (96% v 74%; p < 0.05). Similarly for eye abnormalities, ANNPs were more sensitive (100% v 33%; p < 0.05). There were no significant differences between ANNPs and SHOs in terms of positive predictive values or effectiveness of detecting cardiac abnormalities. There was no difference in underlying incidence of abnormalities between the two hospitals.

CONCLUSION

ANNPs are significantly more effective in detecting abnormalities during the neonatal check. This has implications both for future workforce planning and current methods of medical training.