Spasticity and pain in adults with cerebral palsy

Adults with cerebral palsy and chronic pain experience: A cross-sectional analysis of patient-reported outcomes from a novel North American registry

BACKGROUND

Chronic pain is common among adults with cerebral palsy (CP) and an area of priority for research and treatment.

OBJECTIVE

Describe the pain experience and its functional and quality of life impact among adults with CP with chronic pain in the community.

METHODS

Cross-sectional analysis of adult patient-reported outcomes collected by the Cerebral Palsy Research Network Community Registry.

RESULTS

Among all participants in the Community Registry, n = 205 reported having chronic pain, and 73 % of those (n = 149) completed the Chronic Pain Survey Bundle (75 % female; mean age 43 years (SD 14 years); 94 % White; 91 % non-Hispanic). Back and weight-bearing joints of lower extremities were most frequently reported as painful. There were no differences in average pain severity scores between varying GMFCS levels (H = 6.25, p = 0.18) and age groups (H = 3.20, p = 0.36). Several nonpharmacologic interventions were most frequently reported as beneficial. Participants with moderate to severe average pain scores (5-10) had higher levels of pain interference (p < 0.01) and depression (p < 0.01), and lower levels of satisfaction with social roles (p < 0.01) and lower extremity function (p < 0.01). Pain interference was significantly positively correlated with depression, and negatively correlated with upper and lower extremity function and satisfaction with social roles.

CONCLUSIONS

Chronic pain is experienced by adults with CP of varying ages and functional levels and is associated with several adverse quality of life and functional outcomes. Improved understanding of chronic pain in this population will facilitate the development and study of treatment interventions optimizing health, function, participation, and quality of life.

Pelvic Tilt in Adults With Cerebral Palsy and Its Relationship With Prior Hamstrings Lengthening

BACKGROUND

Current studies assessing the change in pelvic tilt for ambulatory patients with cerebral palsy (CP) after surgical hamstring lengthening (SHL) lack a comparison cohort without prior SHL and are limited to younger patients. This study presents gait data of middle-aged adults with CP, primarily focusing on the pelvis, and compares pelvic tilt, trunk tilt, and knee flexion between those with and without prior SHL.

MATERIALS AND METHODS

A consecutive series of 54 adults with CP, a mean age of 36±13 years, and Gross Motor Function Classification System (GMFCS) levels I-III were included. Thirty-two (59%) had SHL performed at a mean age of 8±5 years. Three-dimensional gait analysis data prospectively collected at a mean of 28±14 years postoperatively were retrospectively analyzed. Chi-square tests were used to compare demographic and surgical history data and statistical parameter mapping was used to compare knee flexion during stance and pelvic and trunk tilts during the gait cycle between SHL and SHL-naive groups.

RESULTS

Age, GMFCS level, sex, race, topography, and ethnicity were not different between the groups (P=.217-.612). Anterior pelvic tilt throughout gait was significantly greater in the SHL group compared with the SHL-naive group (63%-87%; P=.033). This difference was augmented after accounting for other surgical history and revision SHL (0%-32%, P=.019; and 46%-93%, P=.007).

CONCLUSION

Within a cohort of adults with CP, GMFCS levels I-III, and a mean age of 36 years, those with a history of SHL, performed a mean of 28 years prior to 3-dimensional gait analysis, walked with increased anterior pelvic tilt compared with those without a history of SHL. [Orthopedics. 202x;4x(x):xx-xx.].

Knee and ankle range of motion and spasticity from childhood into adulthood: a longitudinal cohort study of 3,223 individuals with cerebral palsy

BACKGROUND AND PURPOSE

Reduced range of motion (ROM) and spasticity are common secondary findings in cerebral palsy (CP) affecting gait, positioning, and everyday functioning. These impairments can change over time and lead to various needs for intervention. The aim of this study was to analyze the development path of the changes in hamstring length, knee extension, ankle dorsiflexion, and spasticity in hamstrings and gastrosoleus from childhood into adulthood in individuals with CP at the Gross Motor Function Classification System (GMFCS) levels I-V.

METHODS

A longitudinal cohort study was undertaken of 61,800 measurements in 3,223 individuals with CP, born 1990-2017 and followed for an average of 8.7 years (range 0-26). The age at examination varied between 0 and 30 years. The GMFCS levels I-V, goniometric measurements, and the modified Ashworth scale (MAS) were used for repeated assessments of motor function, ROM, and spasticity.

RESULTS

Throughout the follow-up period, knee extension and hamstring length exhibited a consistent decline across all individuals, with more pronounced decreases evident in those classified at GMFCS levels III-V. Ankle dorsiflexion demonstrated a gradual reduction from 15° to 5° (GMFCS I-IV) or 10° (GMFCS V). Spasticity levels in the hamstrings and gastrosoleus peaked between ages 5 and 7, showing a propensity to increase with higher GMFCS levels.

CONCLUSION

Passive ROM continues to decrease to 30 years of age, most pronouncedly for knee extension. Conversely, spasticity reached its peak at a younger age, with a more notable occurrence observed in the gastrosoleus compared with the hamstrings. Less than 50% of individuals had spasticity corresponding to MAS 2-4 at any age.

Understanding physiotherapy and physiotherapy services: exploring the perspectives of adults living with cerebral palsy

PURPOSE

To understand physiotherapy and physiotherapy services from the perspectives of adults with cerebral palsy (CP).

METHODS

Twenty-two adults with CP (15 women, 7 men), from across the UK, aged between 23 and 51 years, Gross Motor Function Classification System I-V, were interviewed about their experiences of physiotherapy and physiotherapy services. Participants were recruited through advertisements placed with relevant national organisations. The interviews were transcribed and analysed according to principles of Reflective Lifeworld Research. A second analysis examined the findings in relation to Donabedian's structure-process-outcome framework for healthcare quality.

RESULTS

Specialist services for adults with CP were described as scarce, unknowable, complex and disconnected through the life course. Specific problems included; structural dimensions such as access to and organisation of services, signposting to services and access to expert advice; process dimensions including a lack of attention to patients' perspectives, needs, priorities, experience and expertise; and outcome dimensions for example the negative impact of physiotherapy service configurations on health, well-being and quality of life.

CONCLUSION

Study findings support grassroots calls to radically improve and increase physiotherapy services for adults with CP. Accessible and widely available specialist services, information and advice across the life course would do much to address unmet need. Implications for RehabilitationAdults with CP found it difficult to identify and access specialised physiotherapy services and to obtain information and advice to help them best manage their condition.Adults with CP need physiotherapy services throughout the different phases of their lives, to meet their present needs, and to anticipate and, where possible, to prevent future needs.Participants highly valued person-centred physiotherapy and we recommend this approach is adopted as the foundational philosophy guiding physiotherapy services and interventions for adults with CP.More specialist physiotherapy services are urgently needed to meet the needs of adults with CP in the UK.

The Relationship between Pain and Spasticity and Tell-Tale Signs of Pain in Children with Cerebral Palsy

Pain and quality of life are closely interrelated in children with cerebral palsy (CCP). Even though 67% of CCP experience pain, it is overlooked and untreated. In this study, our purpose was two-fold: first, to examine the relationship between pain and spasticity by evaluating the effects of AbobotulinumtoxinA/Dysport (BoNT), and second, to describe the symptoms and location of pain in CCP. The subjects were 22 CCP in at least moderate pain. They were evaluated for spasticity by the modified Ashworth and Tardieu scale and for pain by the r-FLACC and the pediatric pain profile. After one injection of BoNT, the subjects were re-evaluated. We found a significant reduction in pain, but no significant relationship between the reduction of pain and spasticity. We found no association between the dose of BoNT and pain or spasticity. Pain in the lower extremity was located primarily in the hip region. The effect of ultrasound-guided intermuscular injections of BoNT suggests that pain in CCP has an extra-articular component. We found that pain in CCP manifests as specific tell-tale signs and problems in daily living. In conclusion, we found no relationship between pain and spasticity. Signs and manifestations of pain are described in detail. Lower extremity (hip) pain seems to have a soft tissue/extra-articular component.

Relationship of anthropometric measurements and percent body fat mass to cardiovascular disease risk factors in adults with cerebral palsy

INTRODUCTION

Adults with cerebral palsy (CP) face high morbidity from cardiovascular disease (CVD). Of concern, classic screening parameters are inconsistent in identifying CVD risk in this population. Dual-energy x-ray absorptiometry (DEXA), which provides direct measurements of fat mass (FM), may be an alternative screening method.

OBJECTIVE

To evaluate whether FM measurement with DEXA is feasible in screening adults with CP and compare FM and anthropometric measures to CVD risk factors.

DESIGN

Cross-sectional study.

SETTING

Outpatient rehabilitation hospital.

PARTICIPANTS

Forty-seven adults with CP.

MAIN OUTCOME MEASURES

Weight, height, waist circumference (WC), and hip circumference (HC) were measured; waist-to-hip ratio (WHR) and body mass index (BMI) were calculated. Blood pressure (BP), FM by DEXA, hemoglobin A1c (HbA1c), and lipid measurements were obtained. Logistic regression models investigated odds ratios (ORs) and 95% confidence intervals (CIs) between anthropometric measurements/FM and CVD risk factors; correlations were assessed using Pearson correlation coefficients.

RESULTS

Elevated BP or hypertension diagnosis was present in 47.8%; HbA1c ≥5.7% in 22.2%; and high-density lipoprotein (HDL) level below optimal for 33.3%. DEXA FM was obtained in 29 of 47 participants, as surgical metal and positioning limited many studies. Excess FM was noted in 75.9% versus 41.3% overweight/obese by BMI. WC correlated with HbA1c (r = 0.46, p = .002), HDL (r = -0.36, p = .018), and triglyceride (TG) levels (r = 0.30, p = .045); however at-risk WC values were associated only with odds of elevated HbA1c (OR 8.53, 95% CI 1.46-50.05; p = .018). HC correlated with HbA1c levels (r = 0.38, p = .011) and systolic BPs (r = 0.35, p = .019); similarly, ORs for elevated HC were weakly associated with elevated HbA1c and BPs (OR 1.08, 95% CI 1.01-1.16; p = .024 and OR 1.07, 95% CI 1.01-1.14; p = .024, respectively). WHR correlated with TGs; however few TG levels were elevated. FM measures were not associated with at-risk lab values or BPs.

CONCLUSIONS

DEXA FM measurements may not be feasible for CVD screening in many adults with CP. Although CVD risk factors are frequently present, anthropometric measurements commonly used for general population screening may not translate well to adults with CP.

Behavioral pain indicators for adults with an intellectual disability: a scoping review protocol

OBJECTIVE

This scoping review aims to identify and map the behavioral pain indicators observed when adults with an intellectual disability experience pain.

INTRODUCTION

Adults with an intellectual disability have more health problems than the general population. The likelihood that this population will experience pain is high, but intellectual disability can obstruct the verbal expression of pain. Adults with an intellectual disability express pain via behavioral pain indicators; however, because no behavioral pain scale exists for this population, observers may misinterpret the pain experienced by adults with an intellectual disability.

INCLUSION CRITERIA

The review will examine literature about behavioral pain indicators for adults with any type of intellectual disability who are suffering from any type of pain in any country or care setting.

METHODS

The review will be conducted according to the JBI recommendations for scoping reviews. A preliminary search focusing on the concepts of intellectual disability and pain measurement was conducted for PubMed and CINAHL in March 2022. Once the protocol is validated, searches will also be carried out in Embase, JBI EBP Database, the Cochrane Database of Systematic Reviews, ProQuest Dissertations and Theses, PsycINFO, Web of Science Core Collection, ERIC, Google Scholar, MedNar, and the websites of relevant professional associations. Titles and abstracts, and then full-text studies, will be selected independently by 2 researchers and assessed against the inclusion criteria. Relevant information will be imported into a data chart. Any behavioral pain indicators identified will be classified into 14 behavioral categories.

REVIEW REGISTRATION NUMBER

Open Science Framework osf.io/8xckf.

Different frequencies of repetitive transcranial magnetic stimulation combined with local injection of botulinum toxin type A for post-stroke lower limb spasticity: study protocol for a prospective, single-center, non-randomized, controlled clinical trial

No definite consensus has currently been reached regarding the safety and efficacy of low- or high-frequency repetitive transcranial magnetic stimulation in the treatment of post-stroke muscle spasticity. The latest research indicates that when combined with local injections of botulinum toxin type A, it is more effective on post-stroke muscle spasticity than local injections of botulinum toxin type A alone. We designed a prospective, single-center, non-randomized, controlled clinical trial to investigate the safety and efficacy of different frequencies of repetitive transcranial magnetic stimulation combined with local injections of botulinum toxin type A in treating post-stroke lower limb muscle spasticity to determine an optimal therapeutic regimen. This trial will enroll 150 patients with post-stroke muscle spasticity admitted to the Department of Rehabilitation Medicine at the First Affiliated Hospital of China Medical University. All enrolled patients will undergo routine rehabilitation training and will be divided into five groups (n = 30 per group) according to the particular area of cerebral infarction and treatment methods. Group A: Patients with massive cerebral infarction will be given local injections of botulinum toxin type A and low-frequency (1 Hz) repetitive transcranial magnetic stimulation on the contralateral side; Group B: Patients with non-massive cerebral infarction will be given local injections of botulinum toxin type A and high-frequency (10–20 Hz) repetitive transcranial magnetic stimulation on the affected side; Group C: Patients with massive/non-massive cerebral infarction will be given local injections of botulinum toxin type A; Group D: Patients with massive cerebral infarction will be given low-frequency (1 Hz) repetitive transcranial magnetic stimulation on the contralateral side; and Group E: Patients with non-massive cerebral infarction will be given high-frequency (10–20 Hz) repetitive transcranial magnetic stimulation on the affected side. The primary outcome measure of this trial is a modified Ashworth scale score from 1 day before treatment to 12 months after treatment. Secondary outcome measures include Fugl-Meyer Assessment of Lower Extremity, Visual Analogue Scale, modified Barthel index, and Berg Balance Scale scores for the same time as specified for primary outcome measures. The safety indicator is the incidence of adverse events at 3–12 months after treatment. We hope to draw a definite conclusion on whether there are differences in the safety and efficacy of low- or high-frequency repetitive transcranial magnetic stimulation combined with botulinum toxin type A injections in the treatment of patients with post-stroke lower limb spasticity under strict grouping and standardized operation, thereby screening out the optimal therapeutic regimen. The study protocol was approved by the Medical Ethics Committee of the First Affiliated Hospital of China Medical University (approval No. [2021] 2021-333-3) on August 19, 2021. The trial was registered with the Chinese Clinical Trial Registry (Registration No. ChiCTR2100052180) on October 21, 2021. The protocol version is 1.1.

Walking speed and patient-reported outcomes in young adults with cerebral palsy

AIM

To examine the relationship between quantitative gait measurements and self-reported physical, psychological, cognitive, and social function status in young adults with cerebral palsy (CP).

METHOD

Seventy-two adults with CP (range 18-48y; median age 23y [interquartile range 21-27y]; 34 males, 38 females), in Gross Motor Function Classification System levels I to IV, who previously underwent an instrumented gait analysis (IGA) at our center as children were recruited. Participants underwent a repeated IGA. National Institutes of Health Patient-Reported Outcomes Information System (PROMIS) instruments including the PROMIS-57, Applied Cognition - General Concerns (Short Form), and Applied Cognition - Executive Function (Short Form) were administered. Data derived from current and prior IGA were compared via non-parametric correlation analysis with PROMIS subscores.

RESULTS

Subscores for anxiety, depression, sleep, and fatigue did not significantly correlate with any IGA data. Walking speed, adjusted for stature, correlated strongly with multiple subscores: physical function (p<0.001, r_s =0.708); participation in social roles (p=0.007, r_s =0.319); executive function (p=0.005, r_s =0.335). Pain interference correlated with longitudinal change in adjusted walking speed (p=0.032, r_s =-0.259). The Applied Cognition - General Concerns (Short Form) correlated with prior absolute walking speed, but not adjusted values.

INTERPRETATION

This study underscores the importance of walking speed and its association with a variety of functional domains in adults with CP.

WHAT THIS PAPER ADDS

Patient-Reported Outcomes Information System measures provide useful clinical data in young adults with cerebral palsy. Temporospatial gait parameters have wide-reaching functional influence in this population. Walking speed is strongly correlated with physical, social, and executive function.

Enhanced nociceptive behavior and expansion of associated primary afferents in a rabbit model of cerebral palsy

Spastic cerebral palsy (CP) is a movement disorder marked by hypertonia and hyperreflexia; the most prevalent comorbidity is pain. Since spinal nociceptive afferents contribute to both the sensation of painful stimuli as well as reflex circuits involved in movement, we investigated the relationship between prenatal hypoxia-ischemia (HI) injury which can cause CP, and possible changes in spinal nociceptive circuitry. To do this, we examined nociceptive afferents and mechanical and thermal sensitivity of New Zealand White rabbit kits after prenatal HI or a sham surgical procedure. As described previously, a range of motor deficits similar to spastic CP was observed in kits born naturally after HI (40 min at ~70%-80% gestation). We found that HI caused an expansion of peptidergic afferents (marked by expression of calcitonin gene-related peptide) in both the superficial and deep dorsal horn at postnatal day (P)5. Non-peptidergic nociceptive afferent arborization (labeled by isolectin B4) was unaltered in HI kits, but overlap of the two populations (peptidergic and non-peptidergic nociceptors) was increased by HI. Density of glial fibrillary acidic protein was unchanged within spinal cord white matter regions important in nociceptive transmission at P5. We found that mechanical and thermal nociception was enhanced in HI kits even in the absence of motor deficits. These findings suggest that prenatal HI injury impacts spinal sensory pathways in addition to the more well-established disruptions to descending motor circuits. In conclusion, changes to spinal nociceptive circuitry could disrupt spinal reflexes and contribute to pain experienced by individuals with CP.

ASSOCIATION BETWEEN DAILY PHYSICAL ACTIVITY AND CLINICAL ANTHROPOMORPHIC MEASURES IN ADULTS WITH CEREBRAL PALSY

OBJECTIVE

To describe the relationship between activity level and cardiovascular risk measures as well as describe general activity patterns of adults with cerebral palsy Design: Cross-Sectional Setting: Academic Outpatient Rehabilitation Clinic.

PARTICIPANTS

47 adults with cerebral palsy (CP) Interventions: Not applicable Main Outcome Measures: Gross Motor Functional Classification System (GMFCS) level was determined by validated self-report questionnaire. Activity (daily step count, walk time, sitting time, standing time, and transitional movements) over 6 days recorded using an activPAL. Weight, body mass index (BMI), and waist to hip ratio (WHR) were measured. Bivariate relationships between anthropomorphic and activity measures were assessed.

RESULTS

38 participants completed all measurements. Nine were excluded due to incomplete activPAL data. The median age was 28.50 years [interquartile range 24.25,47.00], range 18-77 years. Participants' GMFCS levels were I:13%, II:16%, III:21%, IV:34%, and V:16%. Median steps/day for GMFCS I/II participants were 5258.3[3606.8, 6634.7], while median steps/day were 1681.3 [657.2, 2751.8] and 30.0 [6.8, 54.2] for GMFCS level III and IV/V participants, respectively. Significantly greater steps/day were found for GMFCS I/II or III participants compared to those GMFCS IV/V (p<0.001 and p=0.0074, respectively). 60.5% of the subjects had a BMI in the normal range, 10.5% were obese, 23.6% were overweight, and 5.3% were underweight. For subjects with GMFCS I/II, the Spearman's rank correlation coefficient for time standing and waist circumference was -0.73 (0.01). Subjects GMFCS III and GMFCS IV/V had respective correlations of -0.16 (0.71) and -0.01 (0.98). For subjects with GMFCS I/II, the Spearman's rank correlation coefficient for standing time and BMI was -0.55 (p= 0.08). For the GMFCS III and GMFCS IV/V groups the respective correlation was -0.19 (0.67) and 0.00 (1.00).

CONCLUSIONS

Subjects with GMFCS level I or II who engaged in more activity tended to have more favorable anthropometric profiles. Subjects GMFCS III, IV, or V did not have a similar trend. Our findings suggest factors beyond activity patterns affect anthropometrics to a greater degree in those with higher GMFCS levels.

The Use and Outcomes of Motor Rehabilitation Services Among People With Cerebral Palsy Change Across the Lifespan

Background and Aims

The provision of coordinated and multidisciplinary rehabilitation programs that adapt to the individual with cerebral palsy (CP) evolving rehabilitation needs throughout the different phases of life is highly challenging for healthcare systems. The aim of this study was to report the changes in motor rehabilitation (MR) environmental factors, service use and patient outcomes between children and adults with cerebral palsy and to identify if changes took place earlier or later than the standard division between pediatric and adult healthcare systems at 18 years.

Methods

We used data from the French ESPaCe survey to select a set of indicators for MR environmental factors, service use and patient outcomes, highlighted by patients and families in previous studies. We then compared the distribution of the indicator data between children and adults, as well as between four transition age groups: children under 12, adolescents up to 17 years, young adults, and adults over 25 years of age. We estimated odds ratios adjusted for motor involvement, associated impairments and informant type.

Results

A total of 997 respondents over 2 years of age were included in this study (484 children and 513 adults). Finding an available physiotherapist was very difficult for almost half of the children, and a greater proportion of adolescents and adults. Physiotherapy was provided in a private outpatient practice for twice as many adults over 25 years as children and adolescents. The weekly amount of physical therapy decreased as outpatient practice increased. Multidisciplinary rehabilitation decreased sharply from adolescence and was halved at adulthood. Satisfaction with the MR program decreased from childhood into adolescence and adulthood. Perceived impact of physiotherapy on people with CP and their main carers were less positive in adolescents.

Conclusions

Healthcare policies should focus on accessibility issues at all ages, consider adolescents as a specific population, consider a wide transition phase (12–25 yo) and maintain a multidisciplinary approach at adulthood. There is a strong need for national rehabilitation strategies for individuals with CP.

Spasticity-related pain in children/adolescents with cerebral palsy. Part 1: Prevalence and clinical characteristics from a pooled analysis

PURPOSE

A large prospective database from three Phase 3 studies allowed the study of spasticity-related pain (SRP) in pediatric cerebral palsy (CP).

METHODS

Baseline (pretreatment) SRP data occurring during different activities in children/adolescents (aged 2-17 years, ambulant/nonambulant) with uni-/bilateral spastic CP was obtained using the Questionnaire on Pain caused by Spasticity (QPS; six modules specific to spasticity level [lower limb (LL) or upper limb (UL)] and type of respondent [child/adolescent, interviewer, or parent/caregiver]).

RESULTS

At baseline, 331 children/adolescents with LL- and 155 with UL-spasticity completed at least one key item of their modules; LL/UL QPS modules of parent/caregivers were at least partially completed (key items) by 841/444 parents/caregivers. SRP with at least one activity at baseline was self-reported in 81.9% /69.7% (LLs/ULs) of children/adolescents with spasticity. Parents/caregivers observed LL/UL SRP behaviors in 85.9% /77.7% of their children, with multiple body regions affected. SRP negatively affected the great majority of the children in various ways. Child/adolescent-reported mean SRP intensity and parent/caregiver-observed mean SRP behavior frequencies were higher for LLs than ULs, and the level of SRP increased with more physically demanding activities.

CONCLUSION

These data suggest SRP is more common and intense in pediatric CP than generally thought, emphasizing the need for effective, long-term pain management.

Management of Muscle Spasms in Adult Patients with Cerebral Palsy

As medical care advances, there is a growing number of adult patients with cerebral palsy. The spastic form is characterized by muscle hypertonicity, hyperreflexia, and spasticity, which are associated with worse quality of life, poor functionality, and pain. This literature review attempts to explore the existing treatments for spasticity in cerebral palsy to provide insight into potential treatments in the adult population. The types of treatments are broadly categorized into physical therapy, pharmacologic treatments, botulinum toxin, surgical treatments, and alternative options.

Evaluation of Pain in Adults With Childhood-Onset Disabilities and Communication Difficulties

Adults with childhood-onset disabilities, particularly those with central nervous system impairment, commonly experience pain. Because many such individuals have difficulties in communication, caregivers and medical professionals must identify and interpret non-verbal behaviors as indicators of pain. This process is challenging and can lead to poor outcomes through delayed or incorrect diagnosis and treatment. Most research in the evaluation of pain in individuals with neurologic impairment has focused on the pediatric population, and evidence-based guidelines do not exist for adults. The purpose of this paper is to review current recommendations for pain assessment in adults with communication impairment. This approach includes guidance for history-taking, pharmacologic review, physical examination, and the judicious use of laboratory and imaging tests. Finally, we discuss adult-specific diagnoses to consider when evaluating pain in adults with childhood-onset disabilities and communication difficulties.

Well-Being of Ambulatory Adults With Cerebral Palsy: Education, Employment, and Physical Function of a Cohort Who Received Specialized Pediatric Care

Introduction: The transition from pediatric health care and school systems presents enormous challenges for young adults with cerebral palsy (CP). The lack of strong societal support during this seminal life event is well-documented and leads many adults with CP to struggle with independence, higher education, and employment. Despite the relatively high prevalence of CP, information about the experiences and function of adults with CP in our society continues to be limited. The purpose of this project was to describe well-being by assessing education, employment, physical function, walking activity, and utilization of health care in an ambulatory adult cohort with CP who received specialized pediatric care at our center.

Method: In this Institutional Review Board-approved prospective study, we invited former patients from our tertiary care pediatric CP center to complete a set of patient-reported outcomes including (1) the Patient-Reported Outcomes Measurement Information System domains of physical function and pain interference, (2) the Satisfaction with Life Scale, and a project-specific demographic questionnaire about education, employment, income, independence, pain, and health care utilization. Participants also wore a pedometer for 8 days to monitor community walking activity. Chi-squared pairwise or t-tests were used as appropriate to compare survey responses and walking activity data between three groups: participants who self-reported, those who reported by proxy, and published normative data from age-matched typically developing adult (TDA) samples.

Results: One hundred twenty-six adults with CP consented to participate; 85 self-reported [age 29.7 ± 4.3 years; Gross Motor Function Classification System: I (28%), II (47%), and III, (25%)] and 41 reported by proxy [age 29.7 ± 4.1 years; Gross Motor Function Classification System: I (10%), II (68%), and III (22%)]. For the group who self-reported, high school graduation rate (99%) was similar to TDA (92%; p = 0.0173) but bachelor's degree achievement rate (55%) was higher than TDA (37%; p < 0.001). Despite more advanced education, the unemployment rate in this group was higher than national levels at 33% and was associated with high utilization of Social Security Disability Insurance (33%). Within the self-reporting group, 13% required a caregiver. For the group who reported by proxy, educational levels (73% high school graduates, 0 bachelor's degree) were lower than the general population (p < 0.001) and unemployment was higher than the national level, at 64%. Unemployment in this group was associated with high utilization of Social Security Disability Insurance (85%). Within the proxy-reporting group, 71% required a caregiver. The full cohort demonstrated lower levels of physical function according to the Patient-Reported Outcomes Measurement Information System and less community walking activity compared with TDA references (p < 0.001). This cohort of adults with CP reported significantly higher frequency of chronic pain (48 vs. 12% for TDA; p < 0.001), but less pain interference with daily activities than TDA based on Patient-Reported Outcomes Measurement Information System results (p < 0.001). This cohort reported good to excellent overall health (93%) and high utilization of primary care (98%), but limited utilization of specialty care, specifically orthopedic care (21%) and physical therapy (15%).

Discussion: This cohort of adults with CP had similar levels of education as the general population, but had relatively high rates of unemployment, caretaker need, and Social Security Disability Insurance utilization. Although chronic pain was frequent, the impact of pain on work and independent living did not exceed reports from a typically developing reference. Better targeted societal resources for adults with physical disabilities are urgently needed to allow equitable access to employment, promote opportunities for independence, and enable full participation in community life.

Diet quality in adults with cerebral palsy: a modifiable risk factor for cardiovascular disease prevention

AIM

To assess diet quality and its relationship with cardiovascular health measures for adults with cerebral palsy (CP).

METHOD

A convenience sample of 45 adults with CP (26 females, 19 males; mean age 35y 10mo [SD 14y 9mo]). were recruited for this cross-sectional study. Demographic, medical, and Gross Motor Function Classification System (GMFCS) information were obtained through in-person visits. Participants completed two 24-hour dietary recalls using the Automated Self-Administered 24-hour Dietary Assessment Tool. Specific macronutrient intake was compared to 2015 to 2020 US Department of Agriculture (USDA) guidelines. Other data included body mass index (BMI), waist-to-hip ratio (WHR), blood pressure, and hemoglobin A1c (HgA1c;n=43).

RESULTS

Adults across GMFCS levels I to V were enrolled, 20 participants were in GMFCS levels IV or V. Mean calorie intake was 1777.91/day (SD 610.54), while sodium intake was 3261.75mg/day (SD 1484.92). Five participants met USDA vegetable and seven fruit guidelines. None met whole grain targets. Sixteen were overweight/obese by BMI. Sixteen participants without hypertension diagnoses had elevated blood pressure and nine had abnormal HgA1c without prediabetes/diabetes history. Percent calories from saturated fat was inversely associated with WHR in unadjusted and adjusted models (p=0.002 and p=0.003 respectively); all other dietary recommendations assessed (total calories, sodium, and sugar) were non-significant. Post hoc analyses were unchanged using 2020 to 2025 USDA guidelines.

INTERPRETATION

Assessment of nutrient intake and diet quality is feasible and warrants further study in adults with CP, as USDA guidelines are largely unmet. What this paper adds Adults with cerebral palsy (CP) do not meet US Department of Agriculture dietary quality recommendations. Prediabetes and hypertension may be common, but unrecognized, in adults with CP. Screening for nutrient intake and diet quality should be performed to facilitate nutritional counseling.

A First Clinical Trial on Botulinum Toxin-A for Chronic Muscle-Related Pain in Cerebral Palsy

Objective: To test if botulinum toxin-A (BoNT-A) is effective in reducing chronic muscle-related pain in adults with spastic cerebral palsy (CP), as compared to placebo.

Design: A single-center, double-blind, parallel, randomized placebo-controlled trial. The design included an interim analysis to allow for confirmatory analysis, as well as pilot study outcomes.

Setting: Tertiary university hospital.

Participants: Adults with spastic CP and chronic pain associated with spastic muscle(s).

Intervention: Treatment was one session of electromyographically guided intramuscular injections of either BoNT-A or placebo normosaline.

Main Study Outcomes: The primary outcome was the proportion who achieved a reduction of pain intensity of two or more steps on the Numerical Rating Scale 6 weeks after treatment.

Results: Fifty individuals were screened for eligibility, of whom 16 were included (10 female, 6 male, mean age = 32 years, SD = 13.3 years). The randomization yielded eight participants per treatment arm, and all completed the study as randomized. The study was stopped at the interim analysis due to a low probability, under a preset threshold, of a positive primary outcome. Four individuals were treatment responders in the BoNT-A group for the primary outcome compared to five responders in the placebo group (p = 1.000). Adverse events were mild to moderate. In exploratory analysis, the BoNT-A group had a trend of continuing reduction of pain at the last follow-up, after the primary endpoint.

Conclusions: This study did not find evidence that BoNT-A was superior to placebo at the desired effect size (number needed to treat of 2.5) at 6 weeks after treatment.

Trial registration:ClinicalTrials.gov: NCT02434549

Neonatal anoxia increases nociceptive response in rats: Sex differences and lumbar spinal cord and insula alterations

Neonatal anoxia is a well-known world health problem that results in neurodevelopmental deficits, such as sensory alterations that are observed in patients with cerebral palsy and autism disorder, for which oxygen deprivation is a risk factor. Nociceptive response, as part of the sensory system, has been reported as altered in these patients. To determine whether neonatal oxygen deprivation alters nociceptive sensitivity and promotes medium- and long-term inflammatory feedback in the central nervous system, Wistar rats of around 30 h old were submitted to anoxia (100% nitrogen flux for 25 min) and evaluated on PND23 (postpartum day) and PND90. The nociceptive response was assessed by mechanical, thermal, and tactile tests in the early postnatal and adulthood periods. The lumbar spinal cord (SC, L4-L6) motor neurons (MNs) and the posterior insular cortex neurons were counted and compared with their respective controls after anoxia. In addition, we evaluated the possible effect of anoxia on the expression of astrocytes in the SC at adulthood. The results showed increased nociceptive responses in both males and females submitted to anoxia, although these responses were different according to the nociceptive stimulus. A decrease in MNs in adult anoxiated females and an upregulation of GFAP expression in the SC were observed. In the insular cortex, a decrease in the number of cells of anoxiated males was observed in the neonatal period. Our findings suggest that oxygen-deprived nervous systems in rats may affect their response at the sensorimotor pathways and respective controlling centers with sex differences, which were related to the used stimulus.

Blood pressure in adults with cerebral palsy: a systematic review and meta-analysis of individual participant data

Objectives:

This systematic review and meta-analysis was designed to determine the overall mean blood pressure and prevalence of hypertension among a representative sample of adults living with cerebral palsy by combining individual participant data. Additional objectives included estimating variations between subgroups and investigating potential risk factors for hypertension.

Methods:

Potential datasets were identified by literature searches for studies published between January 2000 and November 2017 and by experts in the field. Samples of adults with cerebral palsy (n ≥ 10, age ≥ 18 years) were included if blood pressure data, cerebral palsy-related factors (e.g. cerebral palsy subtype), and sociodemographic variables (e.g. age, sex) were available. Hypertension was defined as at least 140/90 mmHg and/or use of antihypertensive medication.

Results:

We included data from 11 international cohorts representing 444 adults with cerebral palsy [median (IQR) age of the sample was 29.0 (23.0–38.0); 51% men; 89% spastic type; Gross Motor Function Classification System levels I–V]. Overall mean SBP was 124.9 mmHg [95% confidence interval (CI) 121.7–128.1] and overall mean DBP was 79.9 mmHg (95% CI 77.2–82.5). Overall prevalence of hypertension was 28.7% (95% CI 18.8–39.8%). Subgroup analysis indicated higher blood pressure levels or higher prevalence of hypertension in adults with cerebral palsy above 40 years of age, men, those with spastic cerebral palsy or those who lived in Africa. BMI, resting heart rate and alcohol consumption were risk factors that were associated with blood pressure or hypertension.

Conclusion:

Our findings underscore the importance of clinical screening for blood pressure in individuals with cerebral palsy beginning in young adulthood.

Prevalence of pain and interference with daily activities and sleep in adults with cerebral palsy

AIM

To analyse the prevalence of pain, pain sites, pain severity, and pain interfering with work or daily activities and sleep in adults with cerebral palsy (CP).

METHOD

This was a cross-sectional study based on data from 1591 adults (16-76y, median age 25y; 879 males, 712 females; Communication Function Classification System [CFCS] levels I-V) in the Swedish Cerebral Palsy Follow-up Program. Pain severity was rated for several body sites and pain interference with activities/work and sleep was also evaluated. Logistic regression was used to estimate the odds ratios (ORs) of the factors associated with the prevalence of pain and pain interfering with activities/work or sleep.

RESULTS

Pain was reported in 1059 of 1591 adults; a higher proportion self-reported pain (69.9%) compared to proxy-reported pain (62.4%). More adults classified in CFCS level I (72.5%) reported pain compared to those in CFCS levels II to V (56.5-64.9%). Adults with severe/very severe pain had a sixfold risk of pain interfering with activity/work (OR=6.68; 95% CI 4.99-8.96) and sleep (OR=6.60; 95% CI 4.84-8.98).

INTERPRETATION

Two-thirds of adults with CP experienced pain, which is likely to be underreported in individuals who do not communicate efficiently or rely on proxy reports. Pain strongly interfered with activities and sleep; thus, it must be assessed and treated more effectively.

Functional near-infrared spectroscopy to assess sensorimotor cortical activity during hand squeezing and ankle dorsiflexion in individuals with and without bilateral and unilateral cerebral palsy

Significance: Our study is the first comparison of brain activation patterns during motor tasks across unilateral cerebral palsy (UCP), bilateral cerebral palsy (BCP), and typical development (TD) to elucidate neural mechanisms and inform rehabilitation strategies. Aim: Cortical activation patterns were compared for distal upper and lower extremity tasks in UCP, BCP, and TD using functional near-infrared spectroscopy (fNIRS) and related to functional severity. Approach: Individuals with UCP ( n = 10 , 18.8 ± 6.8    years ), BCP ( n = 14 , 17.5 ± 9.6    years ), and TD ( n = 16 , 17.3 ± 9.1    years ) participated in this cross-sectional cohort study. The fNIRS was used to noninvasively monitor the hemodynamic response to task-related cortical activation. The block design involved repetitive nondominant hand squeezing and ankle dorsiflexion. Results: Individuals with UCP demonstrated the highest levels of activation for the squeeze task ( UCP > BCP q = 0.049 ; BCP > TD q < 0.001 ; and UCP > TD q = 0.001 ) and more activity in the ipsilateral versus contralateral hemisphere. Individuals with BCP showed the highest levels of cortical activation in the dorsiflexion task ( BCP > UCP q < 0.001 ; BCP > TD ). Conclusions: Grouping by CP subtype and manual function or mobility level demonstrated significant differences from TD, even for individuals with the mildest forms of CP. Hemispheric activation patterns showed hypothesized but nonsignificant trends.