Lidija Dimitrijevic

The value of modified DASH questionnaire for evaluation of elbow function after supracondylar fractures in children.

BACKGROUND/AIM The Disabilities of the Arm, Shoulder and Hand (DASH) Outcome Questionnaire represents a region-specific instrument for functional outcome measurement of hand function. The aim of the study was to analyse the correlation between the values of modified DASH questionnaire and change of elbow function after supracondylar fracture (SCF) of humerus and to analyse the effects of early rehabilitation. METHODS The study included 35 schoolaged children with flexion of SCF of humerus without lesion of nerves. The patients were divided into two groups: group A in which rehabilitation started up to 14 days after the removal of fixation (20 children), and group B in which rehabilitation started after 15 days and more (15 children). The effects of the applied rehabilitation procedures were analyzed by measuring the range of motion of elbow and using modified DASH questionnaire. Testing was performed during the first examination, on the first day of rehabilitation (retest) and after the rehabilitation. Pearsons coefficient of liner correlation was applied. RESULTS Statistically significant negative correlation of DASH score and extension was verified in all three measurements. The values for the first test and for the final test were highly significant (p < 0.001), as well as negative correlation of DASH score and flexion on the first test and retest (p < 0.01), and at the end of rehabilitation (p < 0.001) in the group B. For all three tests in the group A negative correlation without significant differences for DASH score and flexion was found. CONCLUSION A modified DASH questionnaire correlates with objective parameters of final status of elbow after SCF in children and it is applicable to small series of patients. A positive effect of early rehabilitation of children with SCF was found.

The Effect of Aquatic Intervention on the Gross Motor Function and Aquatic Skills in Children with Cerebral Palsy

The Effect of Aquatic Intervention on the Gross Motor Function and Aquatic Skills in Children with Cerebral Palsy The objective of this study was to investigate the effect of an aquatic intervention on the gross motor function and aquatic skills of children with cerebral palsy (CP). Twenty-nine children with CP, aged 5 to 14, were recruited. Fourteen children completed an aquatic intervention (EG), and 13 children served as controls (CG). Two participants dropped out due to events (illness) unrelated to the intervention. The aquatic intervention lasted 6 weeks (2 sessions per week at 55 minutes per session) with a follow-up period of 3 weeks. The outcome measures were the Gross Motor Function Measure (GMFM) for motor function and the Water Orientation Test Alyn 2 (WOTA 2) for aquatic skills assessment. A significant improvement was observed in the secondary assessment of GMFM and WOTA 2. In contrast to the aquatic skills improvement, the GMFM change was not maintained at follow-up. Our results indicate that children with CP can improve gross motor function on dry land and aquatic skills with a 6-week water intervention. The intervention period was too short for sustainable improvement in dry-land motor skills after intervention (followup), but time was sufficient to achieve sustainable improvements in aquatic skills.

Estimation of botulinum toxin type A efficacy on spasticity and functional outcome in children with spastic cerebral palsy

AIM We evaluated the effects of botulinum toxin type A (BTA) - abobotulinumtoxinA on passive motion resistance (PMR) values of lower limbs affected muscles and on the functional motor status in children with spastic cerebral palsy (CP). METHODS In Group I (28 lower limbs with spastic muscles), and in Group II (14 lower limbs with dynamic spastic equinus) BTA was administered. Physical therapy was prescribed for 16 weeks. We estimated PMR using the Modified Ashworth Scale. Achieved functional motor level was evaluated by Gross Motor Function Classification System (GMFCS) and Gross Motor Function Measure (GMFM). Parameters were assessed before treatment and after 3,8,16 weeks and 6 months respectively. RESULTS In Group I, PMR was significantly lower for hip adductors and knee extensors over 3-16 weeks, and for ankle joint extensors in both groups. There were significant differences for both groups in frequencies of GMFCS values after 16 weeks from BTA application. There was a significant increase in GMFM scores after 8 and 16 weeks from BTA application in both groups of patients. CONCLUSIONS BTA treatment in CP children is followed by reduction in PMR values and improvement in functional motor status.

Artificial neural networks based prediction of cerebral palsy in infants with central coordination disturbance.

BACKGROUND In a previous study we demonstrated that heart variability parameters (HRV) could be helpful clinically as well as a prognostic tool in infants with central coordination disturbance (CCD). In recent years, outcome predictions using artificial neural networks (ANN) have been developed in many areas of health care research, but there are no published studies considered ANN models for prediction of cerebral palsy (CP) development. OBJECTIVE To compare the results of an ANN analysis with results of regression analysis, using the same data set and the same clinical and HRV parameters. METHODS The study included 35 infants with CCD and 37 healthy age and sex-matched controls. Time-domain HRV indices were analyzed from 24h electrocardiography recordings. Clinical parameters and selected time domain HRV parameters are used to predict CP by logistic regression, and then an ANN analysis was applied to the same data set. Input variables were age, gender, postural responses, heart rate parameters (minimum, maximum and average), and time domain parameters of HRV (SDNN, SDANN and RMSSD). For each of one the pairs of ANN and clinical predictors, the area under the receiver operating characteristic (ROC) curves with test accuracy parameters were calculated and compared. RESULTS In the observed dataset, ANN model overall correctly classified all infants, compared with 86.11% correct classification for the logistic regression model, and compared with 67.65% and 77.14% for SDANN and SDNN respectively. CONCLUSIONS ANN model, based on clinical and HRV data can predict development of CP in patients with CCD with accuracy greater than 90%. Our results strongly indicate that a well-validated ANN may have a role in the clinical prediction of CP in infants with CCD.

Heart rate variability in infants with central coordination disturbance.

Despite a remarkable medical progress in the field of Developmental Medicine and Child Neurology, early identification of infants at risk for permanent motor disabilities still presents challenge for both clinicians and researchers. As an indicator of cardiac autonomic control, it was shown that heart rate variability (HRV) might reflect not only sympathetic or parasympathetic activity but also functional integrity of the central nervous system (CNS). Furthermore a pattern of HRV was demonstrated to correlate with motor developmental outcome in high risk infants. The purpose of this study was to analyze the clinical usefulness as well as predictive value of time-domain HRV parameters in infants with central coordination disturbance. The study included 35 infants with central coordination disturbance and 37 healthy age and sex-matched controls. Time-domain HRV indices were analyzed from 24-h electrocardiography recordings. We found significantly lower values of SDNN, SDANN and RMSSD parameters in infants with central coordination disturbance compared to controls. Additionally, logistic regression analyses demonstrated independent predictive value of parameters SDNN and SDANN in infants who subsequently developed cerebral palsy (CP). By performing receiver operating characteristic (ROC) analyses, the optimal cut-off value of SDNN<=48ms predicted CP with a sensitivity of 68.7% (95% CI 41.4-88.9) and specificity of 84.2% (95 CI 60.4-96.4) while the optimal cut-off value of SDANN<=41ms predicted CP with a sensitivity of 87.5% (95% CI 61.6-98.1) and specificity of 57.9% (95 CI 33.5-79.7). We are in opinion that time domain HRV analysis could be helpful clinically as well as a prognostic tool in infants with central coordination disturbance.

Botulinum toxin type A for the treatment of spasticity in children with cerebral palsy

BACKGROUND/AIM Cerebral palsy (CP) is the most common physical disability in childhood. Children have problems with motor functions as a result of limbs spasticity, which leads to severe contractures and limbs deformity. There is a growing interest in the therapeutic role of botulinum toxin type A (BTA) in CP. The aim of this study was to examine the effects of BTA on spasticity, active range of motion and functional motor outcomes in children with CP. METHODS This study included 42 children of both sexes, aged 2-6 years, with spastic CP, divided into two groups: group I (21 child) treated with BTA and physical therapy, and group II (21 child) treated with physical therapy only. The following parameters were analyzed: spasticity; active range of motion of the hip, knee and ankle, and functional motor outcome. These parameters measurements were carried out four times in both groups: before the treatment, three, eight and 16 weeks after the beginning of the treatment. The obtained results were statistically processed and compared. RESULTS There was no evidence of any significant difference between the groups before the treatment. After eight weeks there was a remarkable difference concerning spasticity reducing on behalf of the group I (group I -- 0.76 +/- 0.51 vs. II group -- 2.17 +/- 0.64; p < 0.0001). There was statistically significant difference concerning active range of motion increasing on behalf of the group I (hip abduction: group I --44.37 +/- 1.13(0) vs. group II -- 32.61 +/- 8.07(0),p < 0,01; knee extension: group I -- 0.77 +/- 1.82(0) vs. II group -- 14.99 +/- 7.61(0), p < 0.01; dorsiflexion of the foot: group I -- 11.50 +/- 6.08(0) vs. group II -- 8.98 +/- 7.85(0), p < 0.01). A statistically significant difference was found after 16 weeks in functional motor outcome as well, on behalf of the group I: functional motor abilities level in the group I was 1.86 vs. 2.71 in the group II, p < 0.05. CONCLUSION Botulinum toxin type A application leads to an important spasticity decreasing, active range of motion increasing, as well as to functional abilities in children with CP.

Assessment of general movements and heart rate variability in prediction of neurodevelopmental outcome in preterm infants

BACKGROUND Adverse neurologic outcome in preterm infants could be associated with abnormal heart rate (HR) characteristics as well as with abnormal general movements (GMs) in the 1st month of life. AIMS To demonstrate to what extent GMs assessment can predict neurological outcome in preterm infants in our clinical setting; and to assess the clinical usefulness of time-domain indices of heart rate variability (HRV) in improving predictive value of poor repertoire (PR) GMs in writhing period. STUDY DESIGN Qualitative assessment of GMs at 1 and 3 months corrected age; 24h electrocardiography (ECG) recordings and analyzing HRV at 1 month corrected age. SUBJECTS Seventy nine premature infants at risk of neurodevelopmental impairments were included prospectively. OUTCOME MEASURES Neurodevelopmental outcome was assessed at the age of 2 years corrected. Children were classified as having normal neurodevelopmental status, minor neurologic dysfunction (MND), or cerebral palsy (CP). RESULTS We found that GMs in writhing period (1 month corrected age) predicted CP at 2 years with sensitivity of 100%, and specificity of 72.1%. Our results demonstrated the excellent predictive value of cramped synchronized (CS) GMs, but not of PR pattern. Analyzing separately a group of infants with PR GMs we found significantly lower values of HRV parameters in infants who later developed CP or MND vs. infants with PR GMs who had normal outcome. CONCLUSIONS The quality of GMs was predictive for neurodevelopmental outcome at 2 years. Prediction of PR GMs was significantly enhanced with analyzing HRV parameters.

The effects of botulinum toxin type A on improvement and dynamic spastic equinus correction in children with cerebral palsy - preliminary results.

Introduction We evaluated the effects of botulinum toxin type A (BTA) with physical therapy on dynamic foot equinus correction and higher motor functional outcome in children with spastic type of cerebral palsy (CP). Material and methods Ankle joint active and passive movement, gastrocnemial muscle spasticity levels (Modified Ashworth Scale (MAS)), and higher motor functional status (Gross Motor Function Classification System (GMFCS) and Gross Motor Function Measure (GMFM) (GMFM-D – standing and GMFM-E – walking) were assessed before treatment and 3, 8, 16 weeks and 6 months after BTA administration in 12 children. Results There was a significant improvement of active (initial – (–)13.07 ±5.78; 6 months – (–)10.64 ±4.77; p < 0.001) and passive (initial – 4.21 ±2.29; 6 months – 4.71 ±2.16; p < 0.05) ankle joint foot dorsiflexion. GMFM-D and GMFM-E were significantly higher after 3, 8, 16 weeks (p < 0.001) and GMFM-D after 6 months (p < 0.001). Conclusions Botulinum toxin type A administration and physical therapy in patients with spastic CP improves the motion range of dynamic foot equinus after 3 weeks and higher motor functional outcome (standing and walking).

Heart rate variability in children with idiopathic ventricular tachycardia

Idiopathic ventricular tachycardia (IVT) is a rare arrhythmia in children. A great deal of uncertainty and numerous questions still remain regarding the extent of investigation, therapy, and long-term prognosis for children with IVT. The existence of subclinical cardiac disease, as well as of autonomic dysfunction in patients with ventricular arrhythmias, has been well documented. A number of experimental and clinical studies have suggested that imbalances within the cardiac autonomic system’s activity may be crucial in the generation of ventricular tachycardia, irrespective of the presence of cardiovascular pathological substrate. Heart rate variability (HRV) analysis provides a useful method for measuring the autonomic activity. This study evaluates HRV in children with IVT. The study included 31 children with ventricular arrhythmia who were divided into two groups: (1) patients with frequent ventricular extrasystoles (VES) and (2) patients with IVT. The control group comprised 23 healthy children without pathological findings on 24-h ECG Holter. Twenty-four-hour ambulatory electrocardiography recordings were obtained, and the time-domain variables were calculated. HRV was compared to age-related normal values. It was observed that the overall heart rate variability is diminished in children with IVT. We recommend HRV analysis of any child with IVT. Quantification of the autonomic nervous system activity using time domain analyses may be a helpful diagnostic tool in the clinical assessment and initial evaluation of these children.

Hypertensive encephalopathy as a late complication of autonomic dysreflexia in a 12-year-old boy with a previous spinal cord injury

The scope of paediatric autonomic disorders is not well recognised, and paediatricians seem to be generally unaware of the complexity and diversity of their clinical manifestations. We report a 12-year-old boy presenting with hypertensive encephalopathy caused by autonomic dysreflexia. Conclusion: This observation emphasises the importance of the recognition of this rare autonomic disorder, which can have potentially life-threatening neurological complications.