Determinants of nonsynostotic plagiocephaly: a case-control study

The three-dimensional course of cranial development of very preterm infants during the first year of life

BACKGROUND

Cranial measurements are crucial for evaluating preterm general development because they are a surrogate tool for evaluating brain growth. Usually, they are based on tape-measured head circumference; however, a three-dimensional (3D) approach expands the diagnostic spectrum to the evaluation of cranial volume and shape.

AIMS

Very preterm (vPT) infants face multiple risks and obstacles in their early development. In this study, we analyze the risk for cranial anomalies of vPT compared with term-born (TB) infants during the first year of life.

STUDY DESIGN AND SUBJECTS

In this single-centre prospective cohort study, 23 vPT and 24 TB healthy infants were assessed. At term equivalent age (TEA) of vPT and time of birth of TB, and 1, 3, 6 and 12 months of postmenstrual age, respectively, a 3D head scan was performed and cephalometrically evaluated regarding cranial growth (head circumference, cranial volume) and shape.

RESULTS

Head circumference and cranial volume showed a similar course in vPT and TB. Cranial shape differed significantly between vPT and TB. At TEA, vPT showed longer and narrower heads (dolichocephaly), a difference that disappeared around the 6th month of life. Presence of plagiocephaly was initially similar in vPT and TB, with an increasing difference between both groups with a peak at six months when 34.8 % of the vPT versus none of the TB showed a moderate to severe plagiocephaly (p = 0.004). In vPT, cranial volume significantly correlated with cranial shape, whereas dolichocephaly at TEA had no influence on the further course of plagiocephaly.

CONCLUSION

Cranial development of vPT follows a different course than of TB in terms of cranial shape anomalies, while cranial growth remains unaffected. German Clinical Trials Register number: DRKS00022558.

Incidence of Nonsynostotic Plagiocephaly and Developmental Disorders

Importance

This is the first population-based study quantifying the incidence of nonsynostotic positional plagiocephaly and/or brachycephaly (PPB) in infancy and its association with developmental disorders.

Objective

To report the incidence of PPB before age 1 year, the incidence of craniosynostosis, and the percentage of children with PPB diagnosed with a developmental disorder by age 7 years.

Design, Setting, and Participants

This was a retrospective, population-based cohort study of children in the Rochester Epidemiology Project (REP) born in Olmsted County, Minnesota, from January 1, 2008, through December 31, 2012, with follow-up through age 7 years. Data were analyzed from March 2021 to April 2024.

Exposure

Physical examination detecting cranial deformity.

Main Outcomes and Measures

The primary outcome was the incidence of PPB. Secondary outcomes were the incidence of craniosynostosis and the percentage of children with PPB diagnosed with a developmental disorder by age 7 years.

Results

Of 9909 infants (5084 [51.3%] male; 9205 [92.9%] born at term and 704 [7.1%] born preterm) included in the study, 575 had PPB, for a PPB incidence of 5.8% (95% CI, 5.3%-6.3%). The incidence of PPB was 5.3% (95% CI, 4.8%-5.8%) in term infants vs 11.8% (95% CI, 9.4%-14.6%) in preterm infants. The incidence of craniosynostosis was 0.16% (95% CI, 0.09%-0.26%). A developmental disorder was known or suspected in 4.2% (95% CI, 2.7%-6.2%) of infants at the time of PPB diagnosis; among 402 infants with PPB and follow-up through age 7 years, 30 (7.5%; 95% CI, 5.0%-10.7%) had a confirmed developmental disorder by 7 years of age. The prevalence of autism spectrum disorder (ASD) in children with a history of PPB who were followed up to age 7 years was 2.2% (9 of 402 children).

Conclusions and Relevance

This study found that only a small percentage of the infants had positional head deformity significant enough to be documented and/or referred for subspecialty evaluation, and only a small subset of these children went on to have a developmental disorder in childhood. This information is helpful for counseling families about their child's developmental risk at time of PPB diagnosis.

Comorbidities of deformational plagiocephaly in infancy: A scoping review

AIM

While deformational plagiocephaly (DP) is suspected to be associated with comorbidities, their nature and prevalence are unclear. This scoping review aims to report DP comorbidities occurring until the age of 2 years, their prevalence and whether they depend on the child's age and sex.

METHODS

Relevant studies were identified by searching the Cochrane, MEDLINE, EMBASE, PubMed and EBSCO databases from 1992 to 30 April 2021. Data on study characteristics, comorbidities and assessment instruments were extracted and qualitatively synthesised. Risk of bias was assessed and studies with high risk of bias were excluded.

RESULTS

Studies meeting selection criteria (n = 27) often evaluated groups from tertiary clinics, implying selection bias. Studies reported on developmental delay (n = 16), limited speech production (n = 1), auditory (n = 3), visual (n = 3), mandibular (n = 3) and neurological impairments (n = 1). The data did not allow prevalence calculation or modifying effect of sex. Due to biased data, the review provided no evidence on DP comorbidities. Weak evidence suggested that in the selective samples, DP was associated with motor and language delays in the first year.

CONCLUSION

Due to biased data, no evidence on comorbidity in infants with DP was available. Our study underlined the need of risk of bias assessment in scoping reviews.

A comparison of parental attention and preferred items during tummy time: A consecutive controlled case series evaluation

Tummy time is an activity for infants to practice their early motor skills. Although most pediatricians recommend tummy time, parents may avoid the procedures due to indices of infant discomfort during this period. This consecutive controlled case series evaluation compared the effects of preferred items selected from a preference assessment with those of parental attention on head evaluation and negative vocalizations during tummy time. In addition, we directly evaluated parental choice by inviting parents to select which tummy time treatment they wanted to implement. We found that both preferred items and parental attention effectively increased head elevation and decreased negative vocalizations during tummy time; however, parents tended to prefer the treatment that included the preferred item.

Neurocognitive Outcomes in Deformational Plagiocephaly: Is There an Association between Morphologic Severity and Results?

BACKGROUND

The neurodevelopmental effects of skull asymmetry and orthotic helmet therapy for deformational plagiocephaly (DP) have had limited investigation. This study assessed the long-term neurocognitive outcomes in patients with DP and their association with orthotic helmet therapy and head shape abnormality.

METHODS

A total of 138 school-age children with a history of DP, 108 of whom received helmet therapy, were tested with a neurocognitive battery assessing academic achievement, intelligence quotient, and visual-motor function. Severity of presenting plagiocephaly was calculated using anthropometric and photometric measurements. Analysis of covariance was used to compare outcomes between helmeted and nonhelmeted cohorts, unilateral plagiocephaly and concomitant brachycephaly, and left-sided and right-sided plagiocephaly. The association between severity of plagiocephaly and neurocognitive outcome was assessed through a residualized change approach.

RESULTS

There were no significant differences in neurocognitive outcomes between the helmeted and nonhelmeted DP cohorts or the unilateral plagiocephaly and brachycephaly cohorts. Participants with left-sided DP had significantly lower motor coordination scores than participants with right-sided DP (84.8 versus 92.7; effect size = -0.50; P = 0.03). There was a significant laterality by cephalic index interaction, with a negative association between cephalic index and reading comprehension and spelling for participants with left-sided DP. No significant associations were found between severity of presenting or posttreatment deformity and neurocognitive outcome.

CONCLUSIONS

Pretreatment and posttreatment severity of plagiocephaly were not correlated with neurocognitive function at school age. Helmet therapy was not associated with better or worse long-term neurocognitive function. However, participants with left-sided DP demonstrated worse neurocognitive outcomes than participants with right-sided DP in the domains of motor coordination and some types of academic achievement.

CLINICAL QUESTION/LEVEL OF EVIDENCE

Therapeutic, III.

Another look at “tummy time” for primary plagiocephaly prevention and motor development

It is three decades since it was recommended that infants sleep on the back to reduce risk of sudden unexpected infant death (SUID). The SUID prevention program is known as "back to sleep" or "safe sleeping", and this initiative is not questioned. Sleeping on the back is associated with, but not the cause of, the development of infant positional plagiocephaly, also known as deformational or a non-synostotic misshapen head when the skull sutures are open, not fused. This paper provides a synthesis of the history and impact of positional plagiocephaly. It includes a scoping review of plagiocephaly prevention facilitating motor development and reveals few articles on primary prevention which aims to prevent it developing in the first place. It is concerning that preschool-aged children with a history of infant plagiocephaly continued to receive lower developmental scores, particularly in motor development, than unaffected controls, and this may be a marker of developmental delay. Tummy-time (prone) for play is the mainstay of plagiocephaly prevention advice to minimize development of plagiocephaly and to facilitate infant motor development, particularly head control. While tummy-time has shown benefit for infant development, there is limited evidence of its effectiveness in preventing plagiocephaly and some evidence that it promotes only prone-specific motor skills. Most of the published literature is concerned with treatment post-diagnosis, in the form of reviews, or clinical notes. There is a plethora of opinion articles reinforcing tummy-time from birth for plagiocephaly prevention. The review shows that there are gaps in advice for early infant development of head control. An accepted test of head control in infants is "pull to sit" from supine which demonstrates antigravity strength of the neck flexors and coordination of the head and neck when the infant is drawn to sit from supine. This motor skill was cited as achievable by 4 months in the earliest paper on plagiocephaly in 1996. Physical therapists and others should revisit the mechanism of early infant head control development against gravity, particularly antigravity head, neck and trunk coordinated flexion movement in supine, as there has been little attention to early facilitation of this motor skill as a plagiocephaly prevention strategy. This may be achieved by considering "face time" as well as tummy time for primary prevention of plagiocephaly.

Disparities in Access to Cranial Remodeling Orthosis for Deformational Plagiocephaly

OBJECTIVE

Moderate to severe cases of deformational plagiocephaly (DP) may be treated with cranial remolding orthoses (CRO). This study investigated the socioeconomic disparities in access to care for CRO for DP correction.

DESIGN

This was a retrospective review of medical records from a single CRO company in Connecticut from 2014 to 2020.

METHODS

Demographic variables were collected from all patients. Univariable logistic regressions were used to identify differences for presenting age at consultation, whether CRO was pursued, and length of CRO treatment by insurance payor and household income quartile.

RESULTS

Of the 5620 patients identified, 4100 (73.0%) received CRO, with 674 (12.0%) receiving a second helmet. Of those receiving CRO, 1536 (37.5%) had Medicaid insurance while 2558 (62.4%) were commercially insured. Patients on Medicaid were 1.30 times more likely to have delayed presentation (P  =  .017), while patients from the lowest income quartile were 1.26 1.50 (P < .001) and 1.58 (P < .001) times more likely to have a delayed presentation relative to those in the highest and second-highest income quartiles, respectively. Patients in the highest and second-highest income quartiles were also 1.55 (P < .001) and 1.45 (P < .001) more likely, respectively, to receive CRO after consultation than those from the lowest income quartile.

CONCLUSIONS

Lower income and Medicaid-insured patients had delayed presentation for CRO consultation. Those from the lowest income quartile were more likely to never receive CRO than those from wealthier backgrounds. Low socioeconomic status and Medicaid insurance, which can have more restrictive coverage policies for CRO, may result in the delayed treatment of DP.

Effect of sleep position in term healthy newborns on sudden infant death syndrome and other infant outcomes: A systematic review

Background

Though recommended by numerous guidelines, adherence to supine sleep position during the first year of life is variable across the globe.

Methods

This systematic review of randomized trials and observational studies assessed the effect of the supine compared to non-supine (prone or side) sleep position on healthy newborns. Key outcomes were neonatal mortality, sudden infant death syndrome (SIDS), sudden unexpected death in infancy (SUDI), acute life-threatening event (ALTE), neurodevelopment, and positional plagiocephaly. We searched MEDLINE via PubMed, Cochrane CENTRAL, EMBASE, and CINAHL (updated till November 2021). Two authors separately evaluated the risk of bias, extracted data, and synthesised effect estimates using relative risk (RR) or odds ratio (OR). The GRADE approach was used to assess the certainty of evidence.

Results

We included 54 studies (43 observational studies and 11 intervention trials) involving 474 672 participants. A single study meeting the inclusion criteria suggested that the supine sleep position might reduce the risk of SUDI (0-1 year; OR = 0.39, 95% confidence interval (CI) = 0.23-0.65; 384 infants), compared to non-supine position. Supine sleep position might reduce the risk of SIDS (0-1 year; OR = 0.51, 95% CI = 0.42-0.61; 26 studies, 59332 infants) and unexplained SIDS/severe ALTE (neonatal period; OR = 0.16, 95% CI = 0.03-0.82; 1 study, 119 newborns), but the evidence was very uncertain. Supine sleep position probably increased the odds of being 0.5 standard deviation (SD) below mean on Gross Motor Scale at 6 months (OR = 1.67, 95% CI = 1.22-2.27; 1 study, 2097 participants), but might have little to no effect at 18 months of age (OR = 1.16, 95% CI = 0.96, 1.43; 1 study, 1919 participants). An increase in positional plagiocephaly at 2-7 months of age with supine sleep position is possible (OR = 2.77, 95% CI = 2.06-3.72; 6 studies, 1774 participants).

Conclusions

Low- to very low-certainty evidence suggests that supine sleep position may reduce the risk of SUDI (0-1 year) and SIDS (0-1 year). Limited evidence suggests that supine sleeping probably delays short-term ‘gross motor’ development at 6 months, but the effect on long-term neurodevelopment at 18 months may be negligible.

Evidence Base for 2022 Updated Recommendations for a Safe Infant Sleeping Environment to Reduce the Risk of Sleep-Related Infant Deaths

Every year in the United States, approximately 3500 infants die of sleep-related infant deaths, including sudden infant death syndrome (SIDS) (International Statistical Classification of Diseases and Related Health Problems 10th Revision [ICD-10] R95), ill-defined deaths (ICD-10 R99), and accidental suffocation and strangulation in bed (ICD-10 W75). After a substantial decline in sleep-related deaths in the 1990s, the overall death rate attributable to sleep-related infant deaths have remained stagnant since 2000, and disparities persist. The triple risk model proposes that SIDS occurs when an infant with intrinsic vulnerability (often manifested by impaired arousal, cardiorespiratory, and/or autonomic responses) undergoes an exogenous trigger event (eg, exposure to an unsafe sleeping environment) during a critical developmental period. The American Academy of Pediatrics recommends a safe sleep environment to reduce the risk of all sleep-related deaths. This includes supine positioning; use of a firm, noninclined sleep surface; room sharing without bed sharing; and avoidance of soft bedding and overheating. Additional recommendations for SIDS risk reduction include human milk feeding; avoidance of exposure to nicotine, alcohol, marijuana, opioids, and illicit drugs; routine immunization; and use of a pacifier. New recommendations are presented regarding noninclined sleep surfaces, short-term emergency sleep locations, use of cardboard boxes as a sleep location, bed sharing, substance use, home cardiorespiratory monitors, and tummy time. In addition, additional information to assist parents, physicians, and nonphysician clinicians in assessing the risk of specific bed-sharing situations is included. The recommendations and strength of evidence for each recommendation are published in the accompanying policy statement, which is included in this issue.

The Obstetrician Gynecologist's role in the screening of infants at risk of severe plagiocephaly: Prevalence and risk factors

This study was conducted to determine the prevalence, maternal and/or neonatal risk factors for severe plagiocephaly in order to early detect and refer infants at risk. A prospective observational study was conducted, involving 4337 infants who visited the Perinatology Center at San Pietro Fatebenefratelli Hospital in Rome, evaluated following the Plagiocephaly Severity Scale of Atlanta. ©The plagiocephaly prevalence resulted 1.89%, considering moderate to severe forms. Maternal risk factors include primiparity, older age, gestational diabetes, and uterine fibromatosis. Neonatal risk factors are early term gestational age, low weight, twin pregnancy, and prolonged labor with an emergency cesarean section. Screening for severe plagiocephaly should begin antenatally. Although the low prevalence, identifying infants at risk can prevent potential permanent sequelae. We suggest a multidisciplinary approach for the management of plagiocephaly, involving the figure of the Obstetrician Gynecologist, who can highlight the risk factors ranging from obstetric and birth conditions.

Effect of a multicomponent intervention in postnatal mothers' groups on meeting the Australian Physical Activity Guidelines for infants: protocol for a randomised controlled trial

INTRODUCTION

Given the importance of tummy time and the low levels of tummy time reported globally, there is a need for high-quality intervention strategies to promote tummy time. This study describes the protocol of a randomised controlled trial that aims to determine the effectiveness of a multicomponent intervention delivered in postnatal mothers' groups in increasing infant tummy time.

METHODS AND ANALYSIS

A randomised controlled trial will be conducted. Eligible participants will be mothers and their infants attending postnatal mothers' groups (New South Wales, Australia). Participants will be randomised to participate in either (1) infant tummy time intervention group (practice, education, WhatsApp) plus usual care; or (2) usual care group. Randomisation process and outcome assessors will be blinded. The intervention will comprise an online education and practice session (60 min) and 4 weeks of WhatsApp messaging (standardised, three times per week). Usual care will be attendance at a mothers group once per week for 3 weeks for information and support for ad hoc mother craft activities (standard practice provided by early childhood nurses for this local health district). The primary outcome will be the amount of infant tummy time using the GENEActiv accelerometer and a questionnaire (post intervention). The accelerometer will be worn on the right hip secured by an elastic belt around the waist. Wear and non-wear time will be classified using temperature and z-axis cut points as per previous research. This protocol paper presents the scientific background and proposed methods of the randomised controlled trial. Findings will inform the design of practically based strategies to inform clinicians, educators and parents about infant physical activity.

ETHICS AND DISSEMINATION

The University of Wollongong and Illawarra Shoalhaven Local Health District Health and Medical Human Research Ethics Committee approved the study (2020/ETH02970). Dissemination plan is publication, staff training and conference presentations.

TRIAL REGISTRATION NUMBER

Australian New Zealand Clinical Trials Registry ACTRN12621000575831; Pre-results.

Long-Term Results After Head Orthosis Therapy for Early Childhood Position-Related Cranial Deformities: Stability of Treatment Outcome and Parental Satisfaction

The purpose of this study was to determine whether different types of position-related cranial deformities show changes after completion of head orthosis therapy. We investigated how children's age at the begin of molding helmet therapy affects the duration and long-term stability of treatment. In addition, parental satisfaction with helmet therapy has been investigated. Between 2012 and 2019, 47 patients have been analyzed after undergoing helmet therapy. At the beginning of treatment different disease pattern were classified. Posterior deformational Plagiocephalus defined by a cranial vault index (CVA) > 1 cm and a cranial index (CI) <= 90%. Posterior deformational Brachycephalus defined by CVA <= 1 cm and CI > 90%. Posterior deformational combined Plagio- and Brachycephalus defined by CVA > 1 cm and CI > 90%. At the beginning of therapy, the end of therapy and within 5-year-follow-up CI and CVA was measured by three-dimensional photogrammetry for 2 age groups (4-6 and 7-12 months). Additionally, parents completed a standardized questionnaire to evaluate the personal assessment of treatment outcome. During treatment CI and CVA of all children decreased significantly (P < 0.001). Furthermore, CI significantly decreased after ending helmet therapy (P < 0.001). Cranial vault index decreased not significantly in the same period (P = 0.361). For the 4 to 6 months old group treatment time was significantly shorter than for the older group. Before starting helmet therapy nearly half of the parents graded the scull as moderate and one-third as severe deformed. After ending treatment, the majority of parents report satisfaction and compliance. However, one-third of parents noted a slight scull deformation and personal load during therapy. After completion of therapy an improvement of head shape can be expected for the majority of children. This is particularly evident for improvement of the CI and a shorter treatment time until the age of 6 months at the beginning of therapy. Parents reported satisfaction and child compliance. Almost all parents were convinced that treatment was useful and would repeat it again.

Demographics of Positional Plagiocephaly and Brachycephaly; Risk Factors and Treatment

ABSTRACT

In the last 3 decades, the incidence of positional cranial deformations in infants, such as positional plagiocephaly and positional brachycephaly, has increased. The deviating shape often causes parental concern for the later psychosocial wellbeing of the child. Treatment options are nonoperative, varying from positional change to helmet therapy, of which the effect has often been debated. Multiple risk factors have been associated with an increased risk on the development of these deformations. The goal of this study was to assess the impact of known risk factors on the type and severity of resulting positional cranial deformation.Parents were asked to fill out a questionnaire regarding the presence of risk factors, such as gender, age, pregnancy duration, method of delivery and reasons for atypical deliveries, breech position, birth weight, developmental status, positional preference, family history, number of siblings, and torticollis presence. Treatment methods were documented and plagiocephalometry was used to measure the cranial proportions. All children were invited to participate in short-term follow-up. The significance of the risk factors and the effect of different kinds of therapy are discussed. Although no significant correlation was found between severity and risk factors, some risk factors could be correlated with the kind of positional cranial deformation. Of the different therapies, helmet therapy had a significant impact on the reduction of positional plagiocephaly.

Yamasaki E, Lampropoulou S. Comorbidities of deformational plagiocephaly in infancy: a scoping review protocol

Introduction

Deformational plagiocephaly (DP) is one of the most common cranial shape disorders in infancy. It is characterised by unilateral flattening of the skull due to head preference to one side. The literature suggests that DP is associated with comorbidities such as developmental delay, but the nature and prevalence of the comorbid impairments are still unclear and controversial. Therefore, our scoping review (ScR) aims to explore systematically the extent and nature of literature by identifying, mapping and categorising the most relevant comorbidities of DP in children up to the age of 2 years.

Methods and analysis

This protocol is based on the framework outlined by Arksey and O'Malley. A systematic search will be conducted to identify relevant full text studies from 1992 to 2021 using the databases of Cochrane, MEDLINE, Google Scholar, EMBASE, PubMed and University of Nicosia EBSCO. Two independent reviewers will screen abstracts and full articles in parallel, using specific inclusion and exclusion criteria. Specifically, this review will consider studies investigating DP and relevant comorbidities in children up to the age of 2 years of life without craniosynostosis, torticollis and any other diagnosed neurodevelopmental deficiency.The Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for ScR Checklist will be considered for results' analysis and reporting. The results will be described in a narrative form in relation to the research question and in the context of the overall study purpose.

Ethics and dissemination

Research ethics approval is not required for this ScR since data will be retrieved from publicly available studies. Dissemination activities will include research findings' submission for publication in a relevant peer-reviewed journal and presentation of the results at relevant conferences.

Registration

Our protocol was registered prospectively with the Open Science Framework (https://osf.io/48am3/).

Distinguishing Craniomorphometric Characteristics of Unilateral Lambdoid Craniosynostosis

BACKGROUND

Unilateral lambdoid synostosis (ULS) represents the rarest form of single suture nonsyndromic craniosynostosis. Differentiating between posterior deformational plagiocephaly (DP) and ULS has been difficult due to overlapping clinical findings. Past analyses have been limited by sample size. This study was undertaken to clarify anatomical features of ULS.

METHODS

A multiinstitution study was undertaken, analyzing CT imaging from patients with documented ULS to determine clinical and pathological characteristics. Similar analyses were performed on DP patients to differentiate the 2 conditions.

RESULTS

Twenty-seven ULS patient scans and 10 DP scans were included. For ULS patients mean age was 6.6 months, majority male (75%), and majority left-sided ULS (71%). The synostosed side ear was anteriorly displaced in 100% of ULS patients, mean difference of 9.6° (P < 0.001), and inferiorly in 96.3% of patients, mean difference of 4.4 mm, relative to the nonsynostosed side. The posterior fossa deflection (PFD) was deviated 5.9° toward the synostosed side relative to the anterior midline. In DP, there was no significant difference between sides in EAC measurements. The PFD and EAC displacements were significantly smaller in DP relative to ULS (P < 0.001 for each). An ipsilateral mastoid bulge was found in 100% of ULS and 0% of DP on CT imaging.

CONCLUSION

Contrary to some previously published findings, the ear is more anteriorly displaced ipsilateral to the fused lambdoid suture in 100% of ULS patients. Ear position alone is not a reliable indicator to differentiate between DP and ULS. A mastoid bulge is a more reliable indicator of ULS.

The Effect of Cranial Shape on Esthetic Self-Worth in Bald Men

ABSTRACT

During the last 3 decades, the incidence of positional plagiocephaly and brachycephaly has increased. Treatment options are conservative and can include physiotherapy and molding helmet therapy. The decision to start therapy is based on patient history and subjective assessment of cranial shape by the physician and the parents. To determine the impact of these deformations on esthetic self-worth, as well as cranial shape, this study was conducted on a population of adult bald men.Participants were asked to fill in a questionnaire about the amount of comments received on cranial shape, as well as grade their general esthetic and grade craniofacial features using a visual analogue scale. The cranial proportions and symmetry were measured using plagiocephalometry.50 adult bald men were included in this study. The prevalence of nonsynostotic plagiocephaly was 12%; the prevalence of nonsynostotic brachycephaly was 0%. No significant correlation was found between plagiocephaly or brachycephaly, cranial circumference, width or length and amount of comments on cranial shape, cosmetic assessment of appearance or cosmetic assessment of cranial shape. On average, teeth and eyes were given the highest cosmetic value, eyebrows and chin were given the lowest scores.Cranial shape does not have a significant impact on the amount of comments received on cranial shape, nor the cosmetic assessment of either overall appearance or cranial shape in bald men. For bald men, eyes and teeth are more important craniofacial features in cosmetic assessment. There is no clear esthetic need to treat deviating cranial shape with helmet therapy in male patients.

Deformational brachycephaly: the clinical utility of the cranial index

OBJECTIVE

The incidence of deformational brachycephaly has risen since the "Back to Sleep" movement in 1992 by the American Academy of Pediatrics. Brachycephaly prevalence and understanding the dynamic nature of the pediatric skull have not been explored in relation to the cranial index (CI). The objective of the study was to determine the prevalence of brachycephaly, via the CI, with respect to time.

METHODS

The authors conducted a retrospective review of 1499 patients ≤ 19 years of age who presented for trauma evaluation with a negative CT scan for trauma (absence of bleed) in 2018. The CI was calculated using CT at the lateral-most point of the parietal bone (cephalic width), and the distance from the glabella to the opisthocranion (cephalic length). Brachycephaly was defined as a CI ≥ 90%.

RESULTS

The mean CI was 82.6, with an average patient age of 6.8 years. The prevalence of deformational brachycephaly steadily decreased from 27% to 4% from birth to > 2 years of life. The mean CI was statistically different between ages < 12 months, 12-24 months, and > 24 months (F[2,1496] = 124.058, p < 0.0005). A simple linear regression was calculated to predict the CI based on age; the CI was found to decrease by 0.038 each month. A significant regression equation was found (F[1,1497] = 296.846, p < 0.0005), with an R2 of 0.140.

CONCLUSIONS

The incidence of deformational brachycephaly is common in infants but decreases as the child progresses through early childhood. Clinicians can expect a significant decrease in mean CI at 12 and 24 months. Additionally, these regression models show that clinicians can expect continued improvement throughout childhood.

Neurodevelopmental delay according to severity of deformational plagiocephaly in children

The purpose of this study was to investigate the prevalence of neurodevelopmental delay among deformational plagiocephaly (DP) children, and to confirm relationship between neurodevelopmental delay and severity of DP.This study is retrospective study. Five hundred thirteen children who visited for abnormal head shape through outpatient department were recruited. To identify the children with neurodevelopmental delay among the 513 children with DP, Denver Development Screening Test (DDST) was performed in 38 children who suspected of neurodevelopmental delay. Cranial vault asymmetry (CVA) was measured by using caliper, and cranial vault asymmetry index (CVAI) was calculated. Thirty eight children with DP who conducted DDST were divided into 2 groups according to the degree of CVA; group 1 included 21 children with CVA under 10 mm, and group 2 included 17 children with CVA over 10 mm.There was a significant difference in number of neurodevelopmental delay between group 1 (n = 7) and group 2 (n = 14) (P < .05). Mean grade of DP, CVA, and CVAI (1.76 ± 0.44, 5.90 ± 2.21 mm, 4.20 ± 1.51%) in group 1 was smaller than that in group 2 (3.41 ± 0.8, 12.71 ± 3.22 mm, 8.83 ± 2.18%), respectively (P < .05).Our results found that the frequency of developmental delay was significantly increased in children with CVA more than 10 mm. Doctors who take care of children with DP had better keep developmental delays in mild.

Tummy time without the tears: The impact of parent positioning and play

The American Academy of Pediatrics (AAP) recommends that infants spend supervised time in the prone (tummy) position to foster motor development and prevent cranial deformities. However, infants may not tolerate the position, and consequently, caregivers may avoid placing their infants in the prone position. The AAP recommends that caregivers provide toys or interaction during tummy time. We evaluated the individual and combined effects of a play mat and experimenter interaction on negative vocalizations and head elevation during tummy time-positive effects were limited. Next, we evaluated a parent-led intervention wherein mothers interacted with their infants, using a toy, while lying chest-to-chest. This intervention was associated with a reduction in negative vocalizations and an increase in head elevation for the majority of infants. Additionally, mothers rated the effectiveness of the parent-led intervention more favorably than the experimenter-led intervention, suggesting the effects of the parent-led intervention were also socially valid.

Feasibility and Safety of the Preemie Orthotic Device to Manage Deformational Plagiocephaly in Extremely Low Birth Weight Infants

BACKGROUND

Premature infants are predisposed to developing deformational plagiocephaly. Deformational plagiocephaly may affect the infant's social well-being and neurobehavioral development.

PURPOSE

This pilot study investigated the feasibility and safety of the preemie orthotic device (POD); a noncommercial, supportive orthotic device to manage deformational plagiocephaly.

METHODS

The setting for this prospective, descriptive, phase 1 clinical trial was 2 urban and 1 suburban neonatal intensive care units that provided care for critically ill premature and term infants. Participants included a convenience sample of 10 premature extremely low-birth-weight infants weighing less than 1 kg. All participants received the experimental treatment with the POD. Time spent on the device with and without the supportive foam insert, provider perception, adverse events, and head shape measurements were collected to assess feasibility and safety of the device.

RESULTS

Participants had a median gestational age of 25.4 weeks and median birth weight of 0.673 kg. The POD was used a median of 21.2 hours per day and the foam insert was used a median of 11.1 hours per day. At enrollment, 1 participant had a normal cranial index compared with 5 participants at study completion. All participants had normal cranial symmetry at study enrollment and completion. No device-related adverse events were reported.

IMPLICATION FOR PRACTICE

The POD was found to be feasible and safe. Staff had favorable responses to the device. Recommendations by nursing staff included enlarging the device to extend its use.

IMPLICATION FOR RESEARCH

Further studies are warranted to assess the POD's effectiveness.

Prevalence and characteristics of positional plagiocephaly in healthy full-term infants at 8-12 weeks of life

Positional plagiocephaly (PP) denotes flattening of the skull that occurs frequently in healthy infants. Aim of this study was to estimate the prevalence of positional plagiocephaly and to identify the risk factors in a cohort of healthy infants in order to help prevention of PP. In a prospective design, all healthy full-term infants, ranging from 8 to 12 weeks of age, who presented at the public immunization clinic in Ferrara, were eligible for the study. After obtaining informed consent, we interviewed the parents and examined the infants using the Argenta's assessment tool. Of 283 infants examined, 107 (37.8%) were found to have PP at 8-12 weeks of age. In 64.5%, PP was on the right side, 50.5% were male and 15% presented also with brachycephaly. Risk factors significantly associated were lower head circumference, advanced maternal age, Italian compared to African, and supine sleep position, in particular for infants born at 37 weeks, preference for one side of the head. In logistic regression, risk factors significantly associated were lower birth weight, advanced maternal age, and supine sleep position.

CONCLUSIONS

Positional plagiocephaly is a common issue faced by pediatricians; our results reinforce the need of improving prevention both of sudden infant death and positional plagiocephaly, through uniform messages provided prenatally and postnatally by different health professionals. "What is Known:" •The incidence of positional plagiocephaly varies due to population studied and measuring methods. •Different factors are considered in the literature as being associated to positional plagiocephaly (infant factors, obstetric factors, infant care practices, sociodemographic factors). "What is New:" •This is one of the few European studies quantifying positional plagiocephaly prevalence in a population of unselected healthy infants. •In this study, positional plagiocephaly is confirmed as a common issue, related to some factor (as supine sleep position and positional head prevalence) that should be addressed in pre and postnatal counseling. •The prone sleepers rate in our population highlight the need to improve parental awareness regarding SIDS prevention, in particular in borderline gestational age.

Deformational plagiocephaly: The case for an evolutionary mismatch

Lay Summary: In industrialized societies some babies develop flattening of the back part of their head. It is thought that this comes from sleeping supine, which has been shown to be the safest option for babies. However, this explanation cannot be correct from an evolutionary standpoint: why should safe sleep come at the cost of a misshaped head?

Babies in industrialized societies are generally healthy. The medical problems they may be afflicted with are usually well understood. Deformational plagiocephaly presents a notable exception. In many industrialized countries, one in six babies shows posterior flattening of the skull—a feature noteworthy from an evolutionary perspective as the well rounded cranium is part of the ‘Kindchenschema’ evolved to secure care for the infant. It is commonly held that the deformation of the posterior cranium occurs as a consequence of the supine sleep position, now advocated as the safest sleep position for babies by medical experts. This explanation, however, does not fare well in the light of evolutionary theory: why should safe sleep come at the cost of a social handicap? Here, we present an alternative hypothesis that is grounded on evolutionary mismatch theory and exemplifies how evolutionary reasoning can help clarify medical conditions relevant to today’s public health.

3D follow-up study of facial asymmetry after developmental dysplasia of the hip

OBJECTIVES

To evaluate the change in facial asymmetry among subjects treated for developmental dysplasia of the hip (DDH) from childhood to adolescence.

SETTING AND SAMPLE POPULATION

A total of 39 adolescents (26 females and 13 males), born and treated for DDH during 1997-2001, participated in the first examination in 2007 (T1; at the age of 8.2) and in the follow-up in 2016 (T2; at the age of 16.6).

MATERIAL AND METHODS

In this longitudinal study, three-dimensional (3D) images were taken using a 3DMD face system based on a stereophotogrammetric method. Facial asymmetry was determined as the average distance (mm) calculated between the original and superimposed mirrored face and the symmetry percentage (%) calculated as the face area where the distance between the original face and the mirrored surface does not exceed 0.5 mm.

RESULTS

Results showed increased asymmetry from T1 to T2. The average distance increased for whole face (from 0.51 mm to 0.59 mm, P = .001), upper face (from 0.41 mm to 0.49 mm, P = .005), mid-face (from 0.48 mm to 0.57, P = .002) and lower face (from 0.74 mm to 0.85 mm, P = .147). Facial symmetry percentage decreased for whole face from 61.23% to 55.38% (P = .011), for upper face from 69.27% to 62.24% (P = .005) and for mid-face from 62.29% to 55.63% (P = .007) and for lower face from 43.37% to 42.19% (P = .66).

CONCLUSION

Facial asymmetry increases from childhood to adulthood in subjects treated for DDH. Orthodontic treatment does not eliminate this asymmetric facial growth.

Impact of Parent Practices of Infant Positioning on Head Orientation Profile and Development of Positional Plagiocephaly in Healthy Term Infants

AIMS

The influence of infant positioning on the development of head orientation and plagiocephaly is not clear. This study explored the relationship between infant body and head positioning, with the development of asymmetrical head orientation and/or positional plagiocephaly. Methods: Clinician measurement of head orientation profile and parent-reported infant positioning data were collected for 94 healthy term infants at 3, 6, and 9 weeks of age. Plagiocephaly was measured at 9 weeks with the modified Cranial Vault Asymmetry Index.

RESULTS

More severe plagiocephaly was associated with longer supine-sleep-maximum (p = 0.001) and longer supine-lying-total (p = 0.014) at 6 weeks. Prone positioning was not associated with plagiocephaly. Parent-reported head asymmetry during awake and sleep time at 3 weeks identified infants with clinician-measured head asymmetry at 9 weeks. Better symmetry in head turning was associated with more side-lying-total time by 9 weeks (p = 0.013).

CONCLUSIONS

Our results showed that infant positioning is associated with early head orientation and plagiocephaly development. Early parent-reported asymmetry during awake and sleep time is an important indicator for the need for professional assessment and advice. A Plagiocephaly Prevention Strategy and Plagiocephaly Screening Pathway are provided for clinicians and parents.

Common Manual Therapy Practices in the Netherlands for Infants With Upper Cervical Dysfunction: A Prospective Cohort Study

OBJECTIVE

The purpose of this study was to describe common clinical practices of manual therapists (MTs) in the Netherlands for infants with indications of upper cervical dysfunction (UCD).

METHODS

A prospective observational cohort study was conducted to gain insight into characteristics, reasons for seeking care, and common clinical practice for infants (<27 weeks) with indications of UCD, referred to MTs. Pre- and posttreatment self-reported questionnaires were used to collect data from parents and MTs. Parents reported on infant characteristics and perceived effect of treatment. Manual therapists reported on diagnostics, therapeutic procedures, and outcomes.

RESULTS

Between 2006 and 2007, data regarding 307 referred infants (mean age: 11.2 weeks) were collected by parents and 42 MTs. The most frequent reasons for seeking care were positional preference, restlessness, and/or abnormal head position. Manual therapists observed active, spontaneous, and provoked mobility and passive upper cervical mobility. Of the 307 infants, 295 were diagnosed with UCD based on positive outcomes on the flexion-rotation test and/or lateral flexion test. After treatment with mobilization techniques, positive outcomes on the flexion-rotation test decreased from 78.8% to 6.8%. For the lateral flexion test, the positive outcomes decreased from 91.5% to 6.2%. All parents perceived positive treatment effects. No serious adverse events were reported during this study.

CONCLUSIONS

This is the first study to describe common clinical practice for infants referred for manual therapy. Infants with UCD were treated mainly with upper cervical mobilization techniques, and the greatest perceived effect was observed after approximately 2 treatment sessions.

Systematic review of the relationships between physical activity and health indicators in the early years (0-4 years)

Background

Given the rapid development during the early years (0-4 years), an understanding of the health implications of physical activity is needed. The purpose of this systematic review was to examine the relationships between objectively and subjectively measured physical activity and health indicators in the early years.

Methods

Electronic databases were originally searched in April, 2016. Included studies needed to be peer-reviewed, written in English or French, and meet a priori study criteria. The population was apparently healthy children aged 1 month to 59.99 months/4.99 years. The intervention/exposure was objectively and subjectively measured physical activity. The comparator was various volumes, durations, frequencies, patterns, types, and intensities of physical activity. The outcomes were health indicators ranked as critical (adiposity, motor development, psychosocial health, cognitive development, fitness) and important (bone and skeletal health, cardiometabolic health, and risks/harm). The Grading of Recommendations Assessment, Development, and Evaluation (GRADE) framework was used to assess the quality of evidence for each health indicator by each study design.

Results

Ninety-six studies representing 71,291 unique participants from 36 countries were included. Physical activity interventions were consistently (>60% of studies) associated with improved motor and cognitive development, and psychosocial and cardiometabolic health. Across observational studies, physical activity was consistently associated with favourable motor development, fitness, and bone and skeletal health. For intensity, light- and moderate-intensity physical activity were not consistently associated with any health indicators, whereas moderate- to vigorous-intensity, vigorous-intensity, and total physical activity were consistently favourably associated with multiple health indicators. Across study designs, consistent favourable associations with health indicators were observed for a variety of types of physical activity, including active play, aerobic, dance, prone position (infants; ≤1 year), and structured/organized. Apart from ≥30 min/day of the prone position for infants, the most favourable frequency and duration of physical activity was unclear. However, more physical activity appeared better for health. Evidence ranged from “very low” to “high” quality.

Conclusions

Specific types of physical activity, total physical activity, and physical activity of at least moderate- to vigorous-intensity were consistently favourably associated with multiple health indicators. The majority of evidence was in preschool-aged children (3-4 years). Findings will inform evidence-based guidelines.

Electronic supplementary material

The online version of this article (10.1186/s12889-017-4860-0) contains supplementary material, which is available to authorized users.

Deformational plagiocephaly in normal infants: a systematic review of causes and hypotheses

BACKGROUND

Deformational plagiocephaly (DP) is one of the most prevalent abnormal findings in infants and a frequent reason for parents to seek paediatric advice.

OBJECTIVE

To systematically review the literature and identify evidence and hypotheses on the aetiology and determinants of DP in otherwise healthy infants.

DESIGN

Systematic keyword search in all major biomedical databases to identify peer-reviewed publications reporting (a) empirical research or (b) hypotheses on the aetiology of DP in healthy, term infants. 3150 studies published between 1985 and 2016 and containing relevant keywords were screened. In a two-pronged approach, results were summarised separately for the body of empirical work (22 studies) and the body of hypotheses (110 articles).

REVIEW FINDINGS

Only a few empirical studies have examined risk factors in non-selected patient populations on a higher grade methodological level. The most commonly reported risk factors were: male gender, supine sleep position, limited neck rotation or preference in head position, first-born child, lower level of activity and lack of tummy time. Agreement between empirical studies was poor for most exposures, including supine sleep position, tummy time and use of car seats. The articles reporting hypotheses on the aetiology of DP cover a wide field of environmental and biological factors, but include little suggestions as to the potential influence of the everyday care environment of the baby.

CONCLUSIONS AND RELEVANCE

The evidence on the aetiology of DP is fragmentary and heterogeneous. In addition, factors possibly relevant to the development of DP have not been appreciated in the scientific discussion.

Positional plagiocephaly is associated with sternocleidomastoid muscle activation in healthy term infants

PURPOSE

To explore the relationship between sternocleidomastoid activation and positional plagiocephaly in healthy full term infants.

METHODS

Participants were 82 infants from a regionally based-longitudinal study of infant development. Sternocleidomastoid (SCM) activation was assessed using active head-righting responses of body-on-head with and against gravity and head-on-body against gravity at 3, 6 and 9 weeks. Plagiocephaly was assessed using the Modified Cranial Vault Asymmetry Index (mCVAI) at 9 weeks.

RESULTS

More severe plagiocephaly was associated with more severe asymmetry in active head-righting responses at all ages (p < 0.001). Greater right-sided occipital flatness was related to stronger contralateral/left SCM activation at 3 and at 9 weeks (p = 0.008). Greater left-sided occipital flatness was related to stronger contralateral/right SCM activation at 3 weeks (p = 0.004). In infants with any right-sided occipital flatness, the mCVAI was greater in infants with asymmetrical gravity assisted body-on-head responses at 3 weeks (mCVAI = 4.31 (2.01)%, 95% CI 2.87-5.75) compared to those with symmetrical responses (mCVAI = 2.64 (1.66)%, 95% CI 2.06-3.22) (p = 0.011).

CONCLUSIONS

Sternocleidomastoid activation asymmetry is a significant contributor to plagiocephaly development by 9 weeks of age due to stronger contralateral SCM activation. Active head-righting responses are appropriate to assess sternocleidomastoid activation in infants under 2 months of age.

Assessing the Cervical Range of Motion in Infants With Positional Plagiocephaly

PURPOSE

To determine if infants with positional plagiocephaly have limitations of active and passive cervical range of motion measured with simple and reliable methods.

METHODS

The examiners assessed bilateral active and passive cervical rotations and passive cervical lateral flexion. Cervical assessment was performed twice by 2 different physicians to assess intertester reliability. To assess intratester reliability the first investigator performed a second examination 48 hours after the first one.

RESULTS

One-hundred nine subjects were analyzed; 70.7% of the sample had head positional preference on the right, while 29.3% had head positional preference on the left (χ 35.52, P <0.001). Cervical rotations and lateral flexion showed reliable levels of agreement for intra and intertester reliability.

CONCLUSIONS

The most limited range of motion in infants with positional plagiocephaly was cervical active rotation which affected more than 90% of patients. Passive cervical rotations and lateral flexion were limited in more than 60% of patients.

Positional plagiocephaly following ventriculoperitoneal shunting in neonates and infancy-how serious is it?

PURPOSE

We test the hypothesis that ventriculoperitoneal (VP) shunt insertion significantly increases contralateral positional plagiocephaly.

METHODS

We reviewed 339 children who had a VP shunt inserted at Birmingham Children's Hospital between 2006 and 2013, noting laterality of shunt insertion and frontal or occipital position. We ascertained the presence of post-operative positional plagiocephaly using the cranial vault asymmetry index. Multinomial logistic regression modelling was used to examine relationships between plagiocephaly, shunt position, gender and age. Adjusted odds and risk ratios for effect of variables on plagiocephaly were calculated.

RESULTS

Children with occipital VP shunts are at significant risk of developing contralateral positional plagiocephaly, particularly in the first 12 months of life.

CONCLUSIONS

We recommend careful follow-up and advice regarding head positioning following surgery. There should be consideration for active monitoring to avoid plagiocephaly, including physiotherapy and health visitor interventions. Endoscopic third ventriculostomy in selected cases or anterior shunt placement could be considered. A larger national study would be of interest to evaluate the extent of an otherwise correctable problem.

Plagiocephaly and Developmental Delay: A Systematic Review

OBJECTIVE

Deformational plagiocephaly (includes plagiocephaly and brachycephaly) is a common pediatric condition. Infants who present with altered head shape often experience developmental delay. It is uncertain how common developmental delay is in infants with plagiocephaly and how sustained this is, when present. This review explores the association between plagiocephaly and developmental delay to guide clinical practice.

STUDY DESIGN

A systematic review was conducted. MEDLINE, EMBASE, CINAHL, and PEDro databases were searched. Data from relevant studies were extracted regarding study: sample, follow-up, design, and findings. Methodological quality of each study was rated using a critical appraisal tool.

RESULTS

The search recovered 1315 articles of which 19 met the inclusion criteria. In the included studies, the children's ages ranged from 3 months to 10 years. Study limitations included selection bias, nonblinding of assessors, and reuse of the same study population for multiple papers. Most papers (11/19) rated "moderate" on methodological quality. A positive association between plagiocephaly and developmental delay was reported in 13 of 19 studies, including 4 of 5 studies with "strong" methodological quality. Delay was more frequently in studies with children ≤24 months of age (9/12 studies) compared with >24 months of age (3/7 studies). Motor delay was the most commonly affected domain reported in high-quality papers (5/5 studies).

CONCLUSION

This review suggests plagiocephaly is a marker of elevated risk of developmental delays. Clinicians should closely monitor infants with plagiocephaly for this. Prompt referral to early intervention services such as physiotherapy may ameliorate motor delays and identify infants with longer term developmental needs.

High prevalence of cranial asymmetry exists in infants with neonatal brachial plexus palsy

PURPOSE

This study aimed to: 1) evaluate the prevalence of cranial asymmetry (positional plagiocephaly) in infants with neonatal brachial plexus palsy (NBPP); 2) examine the association of patient demographics, arm function, and NBPP-related factors to positional plagiocephaly; and 3) determine percentage of spontaneous recovery from positional plagiocephaly and its association with arm function.

METHODS

Infants < 1 year of age with NBPP and no previous exposure to plagiocephaly cranial remolding therapy or surgical intervention were recruited for this prospective cross-sectional study. Positional plagiocephaly (diagonal difference) measurements were captured using a fiberglass circumferential mold of the cranium. Included infants were divided into 2 groups: 1) those with positional plagiocephaly at most recent evaluation (plagio group), including infants with resolved positional plagiocephaly (plagio-resolved subgroup); and 2) those who never had positional plagiocephaly (non-plagio group). Standard statistics were applied.

RESULTS

Eighteen of 28 infants (64%) had positional plagiocephaly. Delivery type might be predictive for plagiocephaly. Infants in the non-plagio group exhibited more active range of motion than infants in the plagio group. All other factors had no significant correlations.

CONCLUSIONS

A high prevalence of positional plagiocephaly exists among the NBPP population examined. Parents and physicians should encourage infants to use their upper extremities to change position and reduce chance of cranial asymmetry.

SIDS and Other Sleep-Related Infant Deaths: Evidence Base for 2016 Updated Recommendations for a Safe Infant Sleeping Environment

Approximately 3500 infants die annually in the United States from sleep-related infant deaths, including sudden infant death syndrome (SIDS), ill-defined deaths, and accidental suffocation and strangulation in bed. After an initial decrease in the 1990s, the overall sleep-related infant death rate has not declined in more recent years. Many of the modifiable and nonmodifiable risk factors for SIDS and other sleep-related infant deaths are strikingly similar. The American Academy of Pediatrics recommends a safe sleep environment that can reduce the risk of all sleep-related infant deaths. Recommendations for a safe sleep environment include supine positioning, use of a firm sleep surface, room-sharing without bed-sharing, and avoidance of soft bedding and overheating. Additional recommendations for SIDS risk reduction include avoidance of exposure to smoke, alcohol, and illicit drugs; breastfeeding; routine immunization; and use of a pacifier. New evidence and rationale for recommendations are presented for skin-to-skin care for newborn infants, bedside and in-bed sleepers, sleeping on couches/armchairs and in sitting devices, and use of soft bedding after 4 months of age. In addition, expanded recommendations for infant sleep location are included. The recommendations and strength of evidence for each recommendation are published in the accompanying policy statement, "SIDS and Other Sleep-Related Infant Deaths: Updated 2016 Recommendations for a Safe Infant Sleeping Environment," which is included in this issue.

Occipital Plagiocephaly

After the “Back to Sleep” campaign, promoted in 1992 by the American Academy of Paediatrics to prevent the Sudden Infant Death Syndrome (SIDS), it was recommended to place babies in a supine sleeping position. The incidence of SIDS has fallen dramatically since 1992, whereas there has been a major increase in the incidence of occipital plagiocephaly (OP). We report the data relative to the OP cases observed in the Paediatric Department of Padua Hospital between 1998 and 2003. 122 (63%) of the 194 cases of craniosynostosis observed presented OP. The 64 children that took part to the study were contacted and underwent neurological examination with an evaluation of skull shape and previous radiograms. We proposed to parents a questionnaire to define the risk factors and estimate the skull deformity over time. 58 of the 64 children presented positional plagiocephaly (PP), six had synostotic plagiocephaly (SP). Since 1998 there has been a progressive increase in cases of PP. There is a male prevalence (65%), but no side prevalence. Firstborns accounted for 33 (51%), whereas 11 were preterm infants (17%). 82% had a gestational age between the 38th and 40th week. The mean value of the Apgar Index was 8 at the first minute and 9 at the 5th minute. At birth the clinical presentation was: occipital flattening already present at birth in 23 children, preferential head orientation in 18, congenital torticollis in 12, ear asymmetry in 12, frontal bossing in ten. We noticed a mild developmental delay in 8 children (13%). The maximum degree of cranial asymmetry was observed in two peaks in cases of PP: at the third and fourth months (34 cases) and then at the sixth and seventh months (13 cases). The SP presented a progressive exacerbation of the deformity until surgery (done at the sixth to seventh months). PP improved by hygienic postural norms in six months; only three patients required surgery for aesthetic reasons. We observed a strict correlation between side of flattening and sleep head position ( χ2 test, p-value=2,256e-09) and a higher degree of occipital flattening at birth in patients with associated congenital torticollis (Mann-Whitney test, p-value=0.002744). In conclusion, OP is a common condition but essentially benign; it does not cause medical consequences but aesthetic problems. It is necessary to recognize the mild deformity in the newborns so as to intervene early with hygienic postural norms that can correct the asymmetry. The diagnosis is largely clinical and only in case of doubt are radiological examinations required (ultrasonography for sutures, 3D CT scans).

Clinical assessment of head orientation profile development and its relationship with positional plagiocephaly in healthy term infants - A prospective study

BACKGROUND

Positional plagiocephaly refers to atypical development of an uneven head shape with asymmetrical head orientation as a post-natal risk factor. The development of the head orientation profile and its relationship with positional plagiocephaly are lacking.

OBJECTIVES

To explore the head orientation profile development and its relationship with positional plagiocephaly in healthy full term infants.

METHODS

A prospective observational study including 94 infants was conducted. Head orientation measures including head orientation duration, head orientation strength and latency to turn were conducted at three, six and nine weeks of age. Plagiocephaly outcome was measured by modified Cranial Vault Asymmetry Index at nine weeks.

RESULTS

Lateral head orientation duration predominated at three weeks, mean (standard deviation) (right=40 [21.7]%; left=41 [21.5]%; midline=19 [19.9]%). It decreased bilaterally in favour of midline positioning at nine weeks (right=30 [22.3]%; left=24 [22.0]%; midline=46 [27]%. Although head orientation strength was similar across the three ages after accounting for side, head orientation strength to left was decreased from three to nine weeks (p=0.031; 95% CI: 0.12-2.06). There was a reduction in left-consistent with increase in left-bias from 3weeks to 6weeks of age (p=0.011). Positional plagiocephaly at nine weeks was associated with head orientation duration-right (p<0.001; r(2)=0.20); head orientation duration-left (p<0.001; r(2)=0.17); head orientation strength at three and six weeks (p<0.001; r(2)=0.22), but not latency to turn.

CONCLUSIONS

Healthy infants show progressive change from symmetrical lateral head orientation to midline orientation from three to nine weeks. There is association of head orientation duration and strength with positional plagiocephaly.

Insufficient vitamin D supplement use during pregnancy and early childhood: a risk factor for positional skull deformation

Vitamin D insufficiency during pregnancy is associated with disturbed skeletal homeostasis during infancy. Our aim was to investigate the influence of adherence to recommendations for vitamin D supplement intake of 10 μg per day (400 IU) during pregnancy (mother) and in the first months of life (child) on the occurrence of positional skull deformation of the child at the age of 2 to 4 months. In an observational case-control study, two hundred seventy-five 2- to 4-month-old cases with positional skull deformation were compared with 548 matched controls. A questionnaire was used to gather information on background characteristics and vitamin D intake (food, time spent outdoors and supplements). In a multiple variable logistic regression analysis, insufficient vitamin D supplement intake of women during the last trimester of pregnancy [adjusted odds ratio (aOR) 1.86, 95% (CI) 1.27-2.70] and of children during early infancy (aOR 7.15, 95% CI 3.77-13.54) were independently associated with an increased risk of skull deformation during infancy. These associations were evident after adjustment for the associations with skull deformation that were present with younger maternal age and lower maternal education, shorter pregnancy duration, assisted vaginal delivery, male gender and milk formula consumption after birth. Our findings suggest that non-adherence to recommendations for vitamin D supplement use by pregnant women and infants are associated with a higher risk of positional skull deformation in infants at 2 to 4 months of age. Our study provides an early infant life example of the importance of adequate vitamin D intake during pregnancy and infancy.

Prevalence and Consequences of Positional Plagiocephaly and Brachycephaly

The incidence of positional plagiocephaly and brachycephaly in infants has increased. Treatment options include physiotherapy and helmet therapy.No information exists on the prevalence, cosmetic, and psychological consequences of plagiocephaly and brachycephaly later in life. This study was performed to assess the prevalence and cosmetic relevance of plagiocephaly and brachycephaly, as well as its influence on quality of life in adolescence.The authors performed plagiocephalomety to assess cranial shape and used a questionnaire that included question about educational level, medical history, cosmetic appearance, and cranial shape. To evaluate quality of life, the authors used the KIDSCREEN-27 questionnaire.All data were analyzed using SPSS version 19.0 2010. The authors included 87 adolescents. The prevalence of plagiocephaly, defined as an oblique diameter difference index (ODDI) higher than 106%, was 10.3%; the prevalence of brachycephaly, defined as a cranial proportional index (CPI) higher than 95%, was 0%.There was no significant correlation between the level of the ODDI or CPI and the cosmetic assessment of cranial shape (P = 0.128/0.541). There was no significant correlation with the level of the ODDI (P = 0.428).There was no significant correlation between the level of the ODDI or CPI and the average T-value for quality of life using the KIDSCREEN quality-of-life questionnaire (P = 0.461/0.713). The prevalence of positional deformities in our population of adolescents, born after the "back to sleep" campaign, is low. There was no significant correlation between the presence of a cranial deformity and the cosmetic judgement and quality of life.

Early neurodevelopment in infants with deformational plagiocephaly

The objective of this study was to characterize the early neurodevelopmental profile of Australian infants with deformational plagiocephaly (DP). Twenty-one infants with a confirmed diagnosis of DP (mean age, 7.9 months; SD, 2.0 months) were assessed on the Bayley Scales of Infant Development, Second Edition, before treatment. As a group, infants with DP showed significantly weaker motor skills compared with the normative population. Patients with DP did not significantly differ from normative population estimates with respect to cognitive abilities. Males with DP displayed significantly reduced motor abilities compared to females. These findings do not suggest that DP causes developmental problems, but DP could be a marker for risk of developmental problems. Screening for developmental concerns in infants with DP is therefore important.

Effectiveness of conservative therapy and helmet therapy for positional cranial deformation

BACKGROUND

The authors investigated the effectiveness of conservative (repositioning therapy with or without physical therapy) and helmet therapy, and identified factors associated with treatment failure.

METHODS

A total of 4378 patients evaluated for deformational plagiocephaly and/or deformational brachycephaly were assigned to conservative (repositioning therapy, n = 383; repositioning therapy plus physical therapy, n = 2998) or helmet therapy (n = 997). Patients were followed until complete correction (diagonal difference <5 mm and/or cranial ratio <0.85) or 18 months. Rates of correction were calculated, and independent risk factors for failure were identified by multivariate analysis.

RESULTS

Complete correction was achieved in 77.1 percent of conservative treatment patients; 15.8 percent required transition to helmet therapy (n = 534), and 7.1 percent ultimately had incomplete correction. Risk factors for failure included poor compliance (relative risk, 2.40; p = 0.009), advanced age (relative risk, 1.20 to 2.08; p = 0.008), prolonged torticollis (relative risk, 1.12 to 1.74; p = 0.002), developmental delay (relative risk, 1.44; p = 0.042), and severity of the initial cranial ratio (relative risk, 1.41 to 1.64; p = 0.044) and diagonal difference (relative risk, 1.31 to 1.48; p = 0.027). Complete correction was achieved in 94.4 percent of patients treated with helmet therapy as first-line therapy and in 96.1 percent of infants who received helmets after failed conservative therapy (p = 0.375). Risk factors for helmet failure included poor compliance (relative risk, 2.42; p = 0.025) and advanced age (relative risk, 1.13 to 3.08; p = 0.011).

CONCLUSIONS

Conservative therapy and helmet therapy are effective for positional cranial deformation. Treatment may be guided by patient-specific risk factors. In most infants, delaying helmet therapy for a trial of conservative treatment does not preclude complete correction.

CLINICAL QUESTION/LEVEL OF EVIDENCE

Therapeutic, III.

Risk factors for positional plagiocephaly and appropriate time frames for prevention messaging

OBJECTIVE

To determine potential risk factors for developing positional plagiocephaly in infants seven to 12 weeks of age in Calgary, Alberta.

METHODS

A prospective cohort design was used. Healthy term infants (n=440), seven to 12 weeks of age, from well-child clinics at four community health centres in Calgary, Alberta were assessed by the primary author and a registered nurse research assistant using Argenta's plagiocephaly assessment tool. Parents completed a questionnaire surveying risk factors.

RESULTS

The incidence of positional plagiocephaly was estimated to be 46.6%. The following risk factors were identified using multiple logistic regression: right-sided head positional preference (OR 4.66 [95% CI 2.85 to 7.58]; P<0.001), left-sided head positional preference (OR 4.21 [95% CI 2.45 to 7.25]; P<0.001), supine sleep position (OR 2.67 [95% CI 1.58 to 4.51]; P<0.001), vacuum/forceps assisted delivery (OR 1.88 [95% CI 1.02 to 3.49]; P=0.04) and male sex (OR 1.55 [95% CI 1.00 to 2.38]; P=0.05).

CONCLUSION

Advice to vary infants' head positions needs to be communicated to parents/guardians well before the two-month well-child clinic visit. This could occur in the prenatal period by prenatal care providers or educators, or during the neonatal period by postpartum and public health nurses. Prevention education may be emphasized for parents/guardians of male infants and infants who have had assisted deliveries.

Individual course of cranial symmetry and proportion in preterm infants up to 6 months of corrected age

INTRODUCTION

A significant proportion of preterm infants have dolichocephaly and/or deformational plagiocephaly (DP) at term equivalent age. However, quantitative data on the clinical course after discharge is limited in these infants.

AIMS

To quantify the individual course of cranial symmetry and proportion in infants born <32 gestational weeks up to six months of corrected age (CA) and to investigate, whether measurements at discharge predict subsequent cranial deformations.

METHODS

A total of 56 infants were examined at discharge, three and six months of CA. Cranial proportion and symmetry were quantified using a 3D laser scan method. Classification and prevalence data were obtained using age related reference values. Predictive value of DP at discharge regarding subsequent deformation was evaluated.

RESULTS

Cranial Vault Asymmetry Index was 3.9% at discharge, 4.5% at three months and 3.7% at six months of CA. Prevalence of DP was 34% at discharge, 46% at three months and 27% at six months. Cranial Index was 71.4% at discharge and constantly increased over the examination period. Prevalence of dolichocephaly was high at discharge (77%) and subsequently decreased. While severe DP at discharge was predictive for a persistent deformation (PPV 0.78), 46% of infants without DP at discharge developed DP by six months of CA.

DISCUSSION

Despite a high prevalence at discharge, the decreased prevalence of DP and dolichocephaly at six months of CA suggests an optimistic course. However, changes in head shape are hardly predictable for the individual infant. Thus, an accurate quantification should be part of neonatal follow-up programs.

Response to pediatric physical therapy in infants with positional preference and skull deformation

BACKGROUND

Pediatric physical therapy seems to reduce skull deformation in infants with positional preference. However, not all infants show improvement.

OBJECTIVE

The study objective was to determine which infant and parent characteristics were related to responses to pediatric physical therapy in infants who were 2 to 4 months old and had positional preference, skull deformation, or both.

DESIGN

This was a prospective cohort study.

METHODS

Infants who were 2 to 4 months old and had positional preference, skull deformation, or both were recruited by pediatric physical therapists at the start of pediatric physical therapy. The primary outcome was a good response or a poor response (moderate or severe skull deformation) at 4.5 to 6.5 months of age. Potential predictors for responses to pediatric physical therapy were assessed at baseline with questionnaires, plagiocephalometry, and the Alberta Infant Motor Scale. Univariate and multiple logistic regression analyses with a stepwise backward elimination method were performed.

RESULTS

A total of 657 infants participated in the study. At follow-up, 364 infants (55.4%) showed a good response to therapy, and 293 infants (44.6%) showed a poor response. Multiple logistic regression analysis resulted in the identification of several significant predictors for a poor response to pediatric physical therapy at baseline: starting therapy after 3 months of age (adjusted odds ratio [aOR]=1.50, 95% confidence interval [95% CI]=1.04-2.17), skull deformation (plagiocephaly [aOR=2.64, 95% CI=1.67-4.17] or brachycephaly [aOR=3.07, 95% CI=2.09-4.52]), and a low parental satisfaction score (aOR=2.64, 95% CI=1.67-4.17). A low parental satisfaction score indicates low parental satisfaction with the infant's head shape.

LIMITATIONS

Information about pediatric physical therapy was collected retrospectively and included general therapy characteristics. Because data were collected retrospectively, no adjustment in therapy for individual participants could be made.

CONCLUSIONS

Several predictors for responses to pediatric physical therapy in infants who were 2 to 4 months old and had positional preference, skull deformation, or both were identified. Health care professionals can use these predictors in daily practice to provide infants with more individualized therapy, resulting in a better chance for a good outcome.

Cranial shape, size and cervical motion in normal newborns

BACKGROUND

Deformational plagiocephaly (DP) and torticollis are commonly seen in infants and they often co-occur, but little is known of the prevalence and relationship of these conditions in the immediate newborn period. No previous studies focusing on the relationship between cranial shape and cervical motion in newborns can be found.

OBJECTIVES

Determining the incidence rates and characteristics of DP and torticollis and examining the relationship between cervical range of motion (ROM), cranial size and cranial shape in neonates.

METHODS

A single-center, descriptive cross-sectional study including 155 healthy neonates was conducted. Participants were examined during their birth hospitalization. Oblique Cranial Length Ratio (OCLR) and Cephalic Index (CI), indicating cranial asymmetry and shape, were measured from standardized digital photographs with a computer-based cephalometric method. Cervical ROM was measured with goniometry.

RESULTS

7.7% of the newborns had DP and 3.9% had torticollis. 46.4% presented lesser cervical imbalances. DP was associated with gestational diabetes (adjusted OR 5.6; p<0.01) and vacuum assisted delivery (adjusted OR 6.8; p<0.01), but not at all with torticollis. CI correlated strongly with cervical ROM in all directions, while no definite association between cranial asymmetry and cervical motion could be found.

CONCLUSIONS

DP and torticollis are common and minor cervical imbalances very common in normal newborns. Our results support the theory that in most cases neither DP nor torticollis is congenital, but rather develops and worsens synergistically in early infancy. Still, although no direct association between DP and torticollis was found, cranial shape is linked to cervical motion at birth.

Clinical course of asymmetric motor performance and deformational plagiocephaly in very preterm infants

OBJECTIVES

To describe the clinical courses of positional preference and deformational plagiocephaly up to 6 months corrected age (CA) in infants born at gestational age <30 weeks or birth weight <1000 g, and to explore predictive factors for the persistence of these phenomena.

STUDY DESIGN

A total of 120 infants were examined 3 times each. The presence of deformational plagiocephaly and a score of 0-6 on an asymmetry performance scale served as outcome measures at 6 months CA. Predictive factors were determined using regression analysis.

RESULTS

The prevalence of a positional preference of the head was 65.8% (79 of 120) at term-equivalent age (TEA) and 36.7% (44 of 120) at 3 months CA and that of deformational plagiocephaly was 30% (36 of 120) at TEA and 50% (60 of 120) at 3 months CA. At 6 months CA, 15.8% of the infants (19 of 120) scored ≥ 2 of a possible 6 on the asymmetry performance scale and 23.3% (28 of 120) had deformational plagiocephaly. Sleeping in the supine position was predictive of an asymmetric motor performance at 6 months CA. Chronic lung disease and/or slow gross motor maturation at 3 months CA predicted the persistence of deformational plagiocephaly.

CONCLUSION

Infants born very preterm may develop deformational plagiocephaly. A positional preference of the head at TEA seems to be a normal aspect of these infants' motor repertoire, with limited ability to predict persistence of an asymmetric motor performance. The decreased prevalence of deformational plagiocephaly between 3 and 6 months CA indicates an optimistic course. Infants with a history of chronic lung disease and/or slow gross motor maturation merit timely intervention.