Major surgical procedures in children with cerebral palsy

Postsurgical pain assessment in children and adolescents with cerebral palsy: A scoping review

AIM

To investigate factors that influence the assessment of postoperative pain in children and adolescents with cerebral palsy (CP) and the tools available to determine pain intensity.

METHOD

The search was performed in January 2022 using six databases. Articles focused on paediatric patients with CP; we included instruments for postsurgical pain assessment in this population published in the last 11 years.

RESULTS

Eight of 441 studies were included. Males and females behave differently; their families can be called on to describe their pain responses. Seven instruments for pain assessment were identified: the Non-Communicating Children's Pain Checklist and its Postoperative Version; the Paediatric Pain Profile; the revised Face, Legs, Activity, Cry and Consolability (FLACC) pain scale; the Douleur Enfant San Salvador scale; the Pain Indicator for Communicatively Impaired Children; the University of Wisconsin Children's Hospital Pain Scale; and the Individualized Numeric Rating Scale.

INTERPRETATION

The revised FLACC pain scale is suited to postsurgical units because of its ease of use and the fact that parental collaboration is not required. More studies are needed to demonstrate the clinical utility of these scales in postsurgical units and the factors that influence pain assessment.

WHAT THIS PAPER ADDS

Families should be asked to collaborate when assessing pain in children and adolescents whenever possible. Larger studies that focus on the factors influencing pain assessment in this population are required.

Microsurgical DREZotomy in Spastic Cerebral Palsy: Poor Man's Baclofen Pump

BACKGROUND

Using an intrathecal baclofen (ITB) pump for severe refractory spastic cerebral palsy is not a viable option in resource-constraint settings. Therefore authors assessed the role of microsurgical dorsal root entry zone-otomy (MDT) as an alternative for patients in whom the circumstances did not allow ITB pump placement.

METHODS

A prospective clinical study was conducted from August 2016 to July 2020. All patients of spastic cerebral palsy (with III-IV Ashworth grade) who underwent MDT were included. Preoperative and postoperative Ashworth grade and Gross Motor Function Classification System level were assessed along with any change in power, sensation, and bladder functions postoperatively. At last follow-up, the patients' main care providers were asked to rate the effect of surgery (on scale of 0-5) on ease of providing care related to 6 activities of daily living.

RESULTS

Seven patients (5 males, 2 females) of spastic cerebral palsy with an age range of 6-21 years underwent MDT over the study period. Six patients had spastic diplegia, and 1 had spastic hemiplegia. Preoperative Ashworth grade in all patients was 3-4 in various involved muscle groups. Four patients with spastic diplegia underwent MDT at L3-S1 level bilaterally, 2 patients with spastic diplegia and spastic bladder underwent MDT at L3-S4 level bilaterally, and 1 patient with right-sided spastic hemiplegia underwent MDT at C5-T1 level and L3-S1 level on the right side. Postoperative Ashworth grade in all patients improved to 0-1. The improvement in mean Ashworth grade was from 3.14 ± 0.378 preoperatively to 0.29 ± 0.488 (P value = 0.000). Most care providers reported improvement in their ability to do physiotherapy, position, clothe, ambulate, and maintain patient's personal hygiene. Care providers of 6 patients reported that they were likely to recommend MDT to another similar patient.

CONCLUSIONS

MDT is a cost-effective tool in deceasing limb spasticity in spastic cerebral palsy, especially for those who cannot afford ITB placement.

Multi-Organ Dysfunction in Cerebral Palsy

Cerebral Palsy (CP) describes a heterogenous group of non-progressive disorders of posture or movement, causing activity limitation, due to a lesion in the developing brain. CP is an umbrella term for a heterogenous condition and is, therefore, descriptive rather than a diagnosis. Each case requires detailed consideration of etiology. Our understanding of the underlying cause of CP has developed significantly, with areas such as inflammation, epigenetics and genetic susceptibility to subsequent insults providing new insights. Alongside this, there has been increasing recognition of the multi-organ dysfunction (MOD) associated with CP, in particular in children with higher levels of motor impairment. Therefore, CP should not be seen as an unchanging disorder caused by a solitary insult but rather, as a condition which evolves over time. Assessment of multi-organ function may help to prevent complications in later childhood or adulthood. It may also contribute to an improved understanding of the etiology and thus may have an implication in prevention, interventional methods and therapies. MOD in CP has not yet been quantified and a scoring system may prove useful in allowing advanced clinical planning and follow-up of children with CP. Additionally, several biomarkers hold promise in assisting with long-term monitoring. Clinicians should be aware of the multi-system complications that are associated with CP and which may present significant diagnostic challenges given that many children with CP communicate non-verbally. A step-wise, logical, multi-system approach is required to ensure that the best care is provided to these children. This review summarizes multi-organ dysfunction in children with CP whilst highlighting emerging research and gaps in our knowledge. We identify some potential organ-specific biomarkers which may prove useful in developing guidelines for follow-up and management of these children throughout their lifespan.

Screening Intrathecal Baclofen Pump Systems for Catheter Patency via Catheter Access Port Aspiration

OBJECTIVES

To screen all of our patients being treated with intrathecal baclofen (ITB) therapy for catheter patency.

METHOD

Catheter patency was examined by performing a catheter access port study in 91 pediatric and adult patients undergoing ITB therapy at our institution.

RESULTS

Despite no preoperative clinical suspicion of a problem with the ITB system in all but one case, 16.5% of the catheters in our patient population were not patent. After replacement, prerevision and stable postrevision dosage was examined to determine the impact system replacement had on the daily dosage. There was a significant 65% reduction in the daily ITB dosage from before catheter exploration (M = 823.8 mcg/day, SD = 390.51) to stable post replacement/revision dosage after catheter replacement or revision (M = 289.43 mcg/day, SD = 187.76), t₁₁ = 4.09, p = .002, 95% CI [246.80, 822.00].

CONCLUSIONS

These results suggest that catheters need to be routinely screened for patency. Routine maintenance and screening can minimize or more quickly detect nonpatent systems and ensure proper functioning of the ITB system.

Risk factors for pancreatitis after posterior spinal fusion in children with cerebral palsy

This study reports on the prevalence and risk factors of acute pancreatitis after posterior spinal fusion for cerebral palsy scoliosis. Pancreatitis diagnosis was based on elevated amylase or lipase above three times the upper normal limit. Perioperative data were compared between patients with and without pancreatitis. We included 300 patients; 55% developed acute pancreatitis. Gastrostomy dependence was more common in the pancreatitis group (P=0.048). Perioperative data were similar between groups. Patients with pancreatitis had longer duration of hospitalization (19 vs. 13 days, P<0.001). Acute pancreatitis is common after cerebral palsy scoliosis surgery. Gastrostomy dependence increases its risk. Although no mortality was reported, hospital stay was longer.

Outcomes of intrathecal baclofen therapy in patients with cerebral palsy and acquired brain injury

Intrathecal baclofen (ITB) has been known to reduce spasticity which did not respond to oral medications and botulinum toxin treatment. However, few results have been reported comparing the effects of ITB therapy in patients with cerebral palsy (CP) and acquired brain injury. This study aimed to investigate beneficial and adverse effects of ITB bolus injection and pump therapy in patients with CP and to compare outcomes to patients with acquired brain injury such as traumatic brain injury and hypoxic brain injury. ITB test trials were performed in 37 patients (19 CP and 18 acquired brain injury). Based on ambulatory function, CP patients were divided into 2 groups: 11 patients with nonambulatory CP and 8 patients with ambulatory CP. Change of spasticity was evaluated using the Modified Ashworth Scale. Additional positive or negative effects were also evaluated after ITB bolus injection. In patients who received ITB pump implantation, outcomes of spasticity, subjective satisfaction and adverse events were evaluated until 12 months post-treatment. After ITB bolus injection, 32 patients (86.5%) (CP 84.2% versus acquired brain injury 88.9%) showed a positive response of reducing spasticity. However, 8 patients with CP had negative adverse effects. Particularly, 3 ambulatory CP patients showed standing impairment and 1 ambulatory CP patient showed impaired gait pattern such as foot drop because of excessive reduction of lower extremity muscle tone. Ambulatory CP patients received ITB pump implantation less than patients with acquired brain injury after ITB test trials (P = .003 by a chi-squared test). After the pump implantation, spasticity was significantly reduced within 1 month and the effect maintained for 12 months. Seventeen patients or their caregivers (73.9%) were very satisfied, whereas 5 patients (21.7%) suffered from adverse events showed no subjective satisfaction. In conclusion, ITB therapy was effective in reducing spasticity in patients with CP and acquired brain injury. Before ITB pump implantation, it seems necessary to perform the ITB bolus injection to verify beneficial effects and adverse effects especially in ambulatory CP.

Clinical relevance of echocardiogram in patients with cerebral palsy undergoing posterior spinal fusion

BACKGROUND

Spinal deformity is one of the secondary musculoskeletal problems that occur with cerebral palsy (CP). Of the co morbidities associated with CP and spinal deformity, cardiac function is of theoretical concern.

OBJECTIVE

The goal of our study was to determine the clinical relevance of routine preoperative cardiology evaluation via echocardiogram for patients with CP presenting for posterior spine fusion (PSF) surgery.

METHODS

A retrospective chart review was performed of CP patients presenting for scoliosis surgery. The data collected for each patient included: age, sex, height, weight, Cobb angle, and medical history. All patients had a preoperative cardiac evaluation.

RESULTS

Seventy-two patients were included. The mean age was 13.6 ± 3.4 years. Left ventricular systolic function was normal in all patients; the mean shortening fraction was 39.3 ± 6.2%. No patient had more than mild insufficiency of either the semilunar or atrioventricular valve. One patient was diagnosed with aortic root dilation as well as aortic valve insufficiency. All patients had PSF surgery without changes in anesthetic or surgical plans, and no patient experienced complications attributable to a cardiac origin.

CONCLUSION

The results suggest that routine preoperative cardiology evaluation via echocardiogram for children with CP in the absence of clinical history or physical examination findings suggestive of cardiac disease is not necessary.