Ventriculostomy and Risk of Upward Herniation in Patients with Obstructive Hydrocephalus from Posterior Fossa Mass Lesions

Background

Patients with posterior fossa lesions causing obstructive hydrocephalus present a unique clinical challenge, as relief of hydrocephalus can improve symptoms, but the perceived risk of upward herniation must also be weighed against the risk of worsening or continued hydrocephalus and its consequences. The aim of our study was to evaluate for clinically relevant upward herniation following external ventricular drainage (EVD) in patients with obstructive hydrocephalus due to posterior fossa lesions.

Methods

We performed a retrospective review of patients undergoing urgent/emergent EVD placement at our institution between 2007 and 2014, evaluating the radiographic and clinical changes following treatment of obstructive hydrocephalus.

Results

Even prior to EVD placement, radiographic upward herniation was present in 22 of 25 (88%) patients. The average Glasgow Coma Scale of patients before and after EVD placement was 10 and 11, respectively. Radiographic worsening of upward herniation occurred in two patients, and upward herniation in general persisted in 21 patients. Clinical worsening occurred in two patients (8%), though in all others the clinical examination remained stable (44%) or improved (48%) following EVD placement. Of the patients who had a worsening clinical exam, other variables likely also contributed to their decline, and cerebrospinal fluid diversion was likely not the main factor that prompted the clinical change.

Conclusions

Radiographic presence of upward herniation was often present prior to EVD placement. Clinically relevant upward herniation was rare, with only two patients worsening after the procedure, in the presence of other clinical confounders that likely contributed as well.

     

A thoracic spinal bone giant cell tumor in a skeletally immature girl. A case report and literature review

Purpose

Giant cell tumors (GCT) are benign primary bone tumors, locally aggressive, affecting in long bones in young adults during the third decade. It is rare to experience this lesion in skeletally immature patients. GCT are related to a risk of local recurrence and malignant transformation.

Method

We report a rare case of a giant cell tumor of the thoracic spine in a skeletally immature girl presenting with a painful right scoliosis.

Results

MRI, CT scan, and bone scintigraphy were discordant and the percutaneous biopsy non-contributive.

Conclusion

A marginal “en bloc” resection was performed and revealed the GCT. Based on a literature review, the diagnosis and the surgical management of this case are discussed.

     

Skull fracture mimicking eosinophilic granuloma

Background

Delayed swelling after skull fractures is an uncommon complication following head trauma in children. Classically, growing skull fractures typically present in patients under 3 years of age with progressive subcutaneous fluid collections, or occasionally with neurologic symptoms. We present the case of a healthy 2-year-old boy with a lytic “punched-out” frontal skull lesion. The child presented 2 months after a minor forehead injury for which no medical attention was sought.

Methods

The skull defect had no associated leptomeningeal cyst or brain herniation. Imaging and presentation were thought to be consistent with eosinophilic granuloma. Histologic findings demonstrated a healing skull fracture.

Results

Cranioplasty was performed, and the patient had an uncomplicated postoperative course.

Conclusions

In this report, we describe our experience with this atypical presentation of a healing skull fracture mimicking a typical eosinophilic granuloma.

     

Role of “major” and “minor” lambdoid arch sutures in posterior cranial fossa changes: mechanism of cerebellar tonsillar herniation in infants with multisutural craniosynostosis

Purpose

This study aimed to explain the functional role of lambdoid arch sutures in the development of cerebellar tonsillar herniation. Posterior cranial fossa (PCF) changes were investigated in infants with premature synostosis of the major and minor sutures of the lambdoid arch without premature synostosis of the PCF synchondroses.

Methods

Morphometric and volumetric PCF measurements were performed on preoperative high-resolution CT studies in 12 infants with multisutural craniosynostosis involving the lambdoid arch and compared with those of 12 age-matched healthy subjects.

Results

All 12 patients had hypoplasia of PCF bone structures and normal volumes of the PCF and neural structures. PCF hypoplasia was related to exocciput length in infants with isolated involvement of major sutures, while it was related to posterior skull base hemifossae in infants with isolated involvement of minor lambdoid arch sutures. Foramen magnum AP diameter was reduced in babies with major suture involvement and tonsillar herniation, while foramen magnum AP and LL diameters were reduced in babies with minor suture involvement without tonsillar herniation. Right and left jugular foramen (JF) areas differed in all infants; however, the area of the smaller JF was significantly reduced only in infants with involvement of minor lambdoid arch sutures.

Conclusion

Hypoplasia of PCF bone structures due to sutural synostosis of the lambdoid arch is a required predisposing but not sufficient factor for the development of cerebellar tonsillar herniation through the foramen magnum. Normal PCF volume and foramen magnum anatomy may partly explain the development of cerebellar tonsil herniation in infants with lambdoid arch synostosis.

     

Surgical management of supratentorial ependymomas

Introduction

Supratentorial ependymomas are rare neoplasms accounting for just ten to 15 new cases in the UK per year. This article discusses the surgical management of these tumours.

Materials and methods

We present our experience over the past 12 years looking, in particular, at the location, histological grading, postoperative complications, survival and progression-free survival. A literature review of publications discussing the surgical management of ependymoma over the past 10 years is then presented.

Results

The data shows that complete surgical resection confers a significant survival advantage. There appears to be conflicting data with respect to prognosis when comparing supratentorial to infratentorial ependymoma.

Conclusion

The authors suggest complete excision and advocate, where appropriate, the use of pre and intra-operative functional mapping and second-look surgery. The trade off neurological deficit in the pursuit of complete surgical excision in some instances should be considered.

     

Mindfulness Meditation for Chronic Pain: Systematic Review and Meta-analysis

Background

Chronic pain patients increasingly seek treatment through mindfulness meditation.

Purpose

This study aims to synthesize evidence on efficacy and safety of mindfulness meditation interventions for the treatment of chronic pain in adults.

Method

We conducted a systematic review on randomized controlled trials (RCTs) with meta-analyses using the Hartung-Knapp-Sidik-Jonkman method for random-effects models. Quality of evidence was assessed using the GRADE approach. Outcomes included pain, depression, quality of life, and analgesic use.

Results

Thirty-eight RCTs met inclusion criteria; seven reported on safety. We found low-quality evidence that mindfulness meditation is associated with a small decrease in pain compared with all types of controls in 30 RCTs. Statistically significant effects were also found for depression symptoms and quality of life.

Conclusions

While mindfulness meditation improves pain and depression symptoms and quality of life, additional well-designed, rigorous, and large-scale RCTs are needed to decisively provide estimates of the efficacy of mindfulness meditation for chronic pain.

     

Acute Resective Surgery for the Treatment of Refractory Status Epilepticus

Background

To identify the role of acute surgical intervention in the treatment of refractory status epilepticus (RSE).

Methods

Retrospective review of consecutive patients who underwent epilepsy surgery from 2006 to 2015 was done to identify cases where acute surgical intervention was employed for the treatment of RSE. In addition, the adult and pediatric RSE literature was reviewed for reports of surgical treatment of RSE.

Results

Nine patients, aged 20–68 years, with various etiologies were identified to have undergone acute surgical resection for the treatment of RSE, aided by electrocorticography. Patients required aggressive medical therapy with antiepileptic drugs and intravenous anesthetic drugs for 10–54 days and underwent extensive neurodiagnostic testing prior to resective surgery. Eight out of nine patients survived and five patients were seizure-free at the last follow-up. The literature revealed 13 adult and 48 pediatric cases where adequate historical detail was available for review and comparison.

Conclusions

We present the largest cohort of consecutive adult patients who underwent resective surgery in the setting of RSE. We also reveal that surgery can be efficacious in aborting status and in some can lead to long-term seizure freedom. Acute surgical intervention is a viable option in prolonged RSE and proper evaluation for such intervention should be conducted, although the timing and type of surgical intervention remain poorly defined.

     

Growing skull fractures: guidelines for early diagnosis and surgical management

Background

Growing skull fracture (GSF) is a rare complication of pediatric head trauma and causes delayed onset neurological deficits and cranial defect. GSF usually develops following linear fracture with underlying dural tear resulting in herniation of the brain. Early diagnosis and treatment are essential to avoid complications. However, there are no clear-cut guidelines for the early diagnosis of GSF. The present study was conducted to identify the criteria for the early diagnosis of GSF.

Material and methods

From 2010 to 2015, all pediatric patients of head trauma with linear fracture were evaluated. Patients of age <5 years with cephalhematoma, bone diastasis of 4 mm or more with underlying brain contusion were subjected to contrast brain MRI to find out the dural tear and herniation of the brain matter. Patients with contrast MRI showing dural tear and herniation of the brain matter were considered high risk for the development of GSF and treated surgically within 1 month of trauma. Patients with contrast brain MRI not showing dural tear and herniation of the brain matter were regularly followed for any signs of GSF.

Results

A total of 20 patients were evaluated, out of which 16 showed dural defects with herniation of the brain matter and were subjected to duraplasty. Four patients in which MRI did not show dural tear and herniation of the brain matter were regularly followed-up and have not shown any sign of GSF later on follow-up.

Conclusion

Early diagnosis of GSF can be made based on the four criteria, i.e., (1) age <5 year with cephalhematoma, (2) bone diastasis 4 mm or more (3) underlying brain contusion (4) contrast MRI showing dural tear and herniation of the brain matter. Dural tear with herniation of the brain matter is the main etiopathogenic factor for the development of GSF. Early diagnosis and treatment of GSF can yield a good outcome.

     

Gender difference in QTc prolongation of people with mental disorders

Background

We examined gender difference in QTc interval distribution and its related factors in people with mental disorders.

Methods

We retrospectively reviewed medical charts of patients discharged from a university psychiatric unit between November 1997 and December 2000. Subjects were 328 patients (145 males and 183 females) taking psychotropics at their admission. We examined patient characteristics, medical history, diagnosis, and medication before admission.

Results

Mean QTc interval was 0.408 (SD = 0.036). QTc intervals in females were significantly longer than those in males. QTc of females without comorbidity was significantly longer than that of males.

Conclusion

The influence of gender difference on QTc prolongation in people with mental disorders merits further research.

     

Onset of bladder and motor symptoms in multiple system atrophy: differences according to phenotype

Purpose

To compare the order of presentation of bladder and motor symptoms between multiple system atrophy phenotypes.

Methods

Medical records were retrospectively reviewed in 144 patients.

Results

Bladder symptoms occurred either before or within 12 months after onset of motor symptoms in significantly more patients with the cerebellar phenotype than the parkinsonian phenotype (80 vs. 53%, p = 0.003); similar results were observed for urinary incontinence (79 vs. 45%, p = 0.001).

Conclusions

Urinary dysfunction is more likely to appear either before or shortly after motor symptoms in the cerebellar phenotype than in the parkinsonian phenotype.

     

A Self-Regulatory Intervention for Patients with Head and Neck Cancer: Pilot Randomized Trial

Background

Research is yet to investigate whether psychological interventions delivered early after diagnosis can benefit patients with head and neck cancer (HNC).

Purpose

The aim of this study was to investigate the effectiveness of a brief self-regulatory intervention (targeting illness perceptions and coping) at improving HNC patient health-related quality of life (HRQL).

Methods

A pilot randomized controlled trial was conducted, in which 64 patients were assigned to receive three sessions with a health psychologist in addition to standard care or standard care alone. Participants completed questionnaires assessing HRQL, general distress, and illness perceptions at baseline and again 3 and 6 months later.

Results

Compared to the control group, patients who received the intervention had increased treatment control perceptions at 3 months (p = .01), and increased social quality of life at 6 months (p = .01). The intervention was particularly helpful for patients exhibiting distress at baseline.

Conclusion

A brief psychological intervention following HNC diagnosis can improve patient perceptions of treatment and social quality of life over time. Such interventions could be targeted to patients who are distressed in order to confer the greatest benefit.

Trial Registration Number

12614000813684.

     

Idiopathisch generalisierte Epilepsien

Background

Although the sociomedical importance of epilepsies has been extensively investigated, data regarding social long-term outcome and quality of life of people with idiopathic generalized epilepsies (IGE) are lacking.

Objectives

Predictors for the psychosocial outcome and the quality of life in patients with IGE are identified and discussed.

Materials and methods

The findings of existing studies on the social outcome in patients with various IGE syndromes are analyzed and discussed.

Results

Patients with absence epilepsy or juvenile myoclonic epilepsy (JME) are reported to have an unfavorable psychosocial outcome. While in JME a lower seizure frequency or remission of the epilepsy correlates with a favorable psychosocial outcome and a higher quality of life, remission of epilepsy is not predictive for a better social outcome among patients with absence epilepsy. Compared to other IGE syndromes, IGE with generalized, tonic–clonic seizures on awakening appears have a more favorable psychosocial outcome.

Conclusion

Several predictors for the psychosocial outcome and the quality of life have been identified and may potentially increase the clinicians’ ability and confidence to recommend different treatment options to patients with IGE.

     

Painful pediatric traumatic neuroma: surgical management and clinical outcomes

Purpose

Painful neuromas can limit function and decrease quality of life. Although management of traumatic neuromas in adults is well represented in the literature, traumatic neuromas are seen less frequently in children and adolescents, and their management is underrepresented in the literature. We present a sample of our clinical experience with painful pediatric neuromas and describe the surgical management and clinical outcomes of these cases.

Methods

A retrospective case review was conducted on patients treated at our pediatric tertiary care center. The same surgeon was responsible for management and follow-up of all patients.

Results

The sample of five patients was 60 % female and had a mean age of 12.2 (3–16) years. Each case was managed using a different surgical technique. All the patients had acceptable outcomes with a mean post-operative pain score of 0.4 (0–2) out of 10 and no residual functional outcomes.

Conclusions

It is important for clinicians to recognize that pediatric patients develop painful neuromas following nerve trauma and to understand the neurophysiologic basis for their management. Our report demonstrates that many of the techniques that we use for neuroma repair in adults are applicable in the pediatric population.

     

Subjective and objective measures of function and return to work: an observational study with a clinical psychiatric cohort

Purpose

To evaluate the association between two measurement tools (Social and Occupational Functioning Assessment Scale, SOFAS and Sheehan Disability Scale, SDS), returning to work (RTW) and their inter-correlation.

Methods

132 psychiatric patients referred to assessment of work ability participated. The association between SOFAS and SDS Work to RTW were assessed by logistic regression. Inter-correlations between SOFAS and SDS were assessed with the Spearman’s rho correlation coefficient.

Results

SOFAS and SDS Work scores were associated with a 1-year RTW and SOFAS and SDS were inter-correlated.

Conclusions

When assigning the ability to work, both subjective and objective measures of function predict RTW.

     

Tonsillar contusion associated with benign tonsillar ectopia following minor head trauma

Purpose

The relationship between tonsil position and symptomatic cerebellar contusion is unclear. To date, there are no reports of symptomatic traumatic brain injury associated with benign tonsillar ectopia. Reported cases are limited to prominent cerebellar tonsillar displacement by ≥5 mm (i.e., Chiari malformations).

Methods

The authors describe a case of symptomatic concussion in a toddler with unusual computerized tomography (CT) presentation and incidental finding of benign tonsillar ectopia, hemorrhagic contusion of the tonsils, blood-brain barrier (BBB) disruption and delayed atrophy shown using magnetic resonance imaging (MRI) studies. The radiological presentation and the clinical challenges are discussed through a review of the literature.

Conclusion

This case suggests that damage to cerebellar structures is not limited only to overt tonsillar herniation. Benign tonsillar ectopia may predispose to cerebellar contusion even after minor concussion and thus has a clinical significance. The current paradigm viewing only noticeable tonsillar herniation as a risk factor for hindbrain injury should be revisited.

     

Perceptions of Neighborhood Park Quality: Associations with Physical Activity and Body Mass Index

Background

Parks are important resources for physical activity (PA), yet few studies have examined how perceptions of park characteristics relate to PA and health.

Purpose

This study investigated associations between perceptions of neighborhood park quality and overall moderate-to-vigorous PA (MVPA), park-based PA, and body mass index (BMI).

Methods

Data were collected via questionnaire from 893 households in Kansas City, Missouri.

Results

The newly developed neighborhood park quality scale demonstrated good test–retest and internal reliability. Residents’ perceptions of neighborhood park quality were related to PA and health outcomes. Perceiving parks as a benefit was positively related to overall MVPA and park-based PA and negatively related to BMI. Perceptions of well-used parks were positively related to BMI, while perceived cleanliness was negatively related to park-based PA.

Conclusions

Better measuring and understanding how perceptions of local parks are associated with PA and health can improve appreciation of how parks facilitate active living.

     

Arterial variations around the atlas: a comprehensive review for avoiding neurosurgical complications

Introduction

Neurosurgical approaches often involve the atlas. Therefore, the arterial relationships and anatomical variations are of paramount importance to the neurosurgeon.

Methods

Using standard search engines, a literature review of arterial variants near the first cervical vertebra was performed.

Conclusions

Arterial variations around the atlas are surgically significant. Awareness of their existence and course may provide better pre-operative planning and surgical intervention, potentially leading to better clinical outcomes. Three-dimensional computed tomography angiography (3D CTA) is an important tool for identifying and diagnosing such abnormalities and should be used when such vascular anomalies are suspected.

     

Physician Power to Declare Death by Neurologic Criteria Threatened

Background

Three recent lawsuits that address declaration of brain death (BD) garnered significant media attention and threaten to limit physician power to declare BD.

Methods

We discuss these cases and their consequences including: the right to refuse an apnea test, accepted medical standards for declaration of BD, and the irreversibility of BD.

Results

These cases warrant discussion because they threaten to: limit physicians’ power to determine death; incite families to seek injunctions to continue organ support after BD; and force hospitals to dispense valuable resources to dead patients in lieu of patients with reparable illnesses or injuries.

Conclusions

Physicians, philosophers, religious officials, ethicists, and lawyers must work together to address these issues and educate both the public and medical community about BD.

     

Takotsubo Cardiomyopathy in Traumatic Brain Injury

Background

Takotsubo cardiomyopathy (TC) is a well-known complication after aneurysmal subarachnoid hemorrhage and has been rarely described in patients with traumatic brain injury (TBI).

Methods

Case report and review of literature.

Results

Here, we report a 73-year-old woman with mild traumatic brain injury (TBI) presenting in cardiogenic shock. Takotsubo cardiomyopathy (TC) was diagnosed by repeated echocardiography. Cardiovascular support by inotropic agents led to hemodynamic stabilization after initiation of levosimendan. Cardiac function fully recovered within 21 days. We performed an in-depth literature review and identified 16 reported patients with TBI and TC. Clinical course and characteristics are discussed in the context of our patient.

Conclusion

Takotsubo cardiomyopathy is under-recognized after TBI and may negatively impact outcome if left untreated.

     

Is CT perfusion helpful in the treatment allocation of patients with acute ischemic stroke? An expert-opinion analysis

Background

Intravenous tPA is the standard treatment for acute ischemic stroke within 4.5 hours of symptom onset. Neuroradiological selection is currently based upon non-contrast- brain CT scan (NCCT).

Aims

To verify, in an “expert-opinion setting”, the possible usefulness of CT perfusion (CTP) in decision-making toward i.v. thrombolysis.

Patients and method

One hundred and three consecutive patients with acute ischemic stroke who underwent NCCT and CTP were re-evaluated by an expert in cerebrovascular disease, to verify if adding CTP information would have changed expert’s opinion.

Results

After CTP, a definitive decision was made for 20 more patients, changing the proportion of patients candidate to i.v. tPA from 44% to 51%, and reducing uncertainty from 29% to 10%. CTP results were useful inmilder stroke (p = 0.01).

Conclusions

In a “real world” setting, CT perfusion could be useful for clinical decision, in particular for milder stroke.