Characteristics of facial nerve palsy during childhood in Japan: frequency of varicella-zoster virus association

Prevalence of herpes zoster virus reactivation in patients diagnosed with Bell's palsy

Objective

Herpes zoster virus can cause inflammatory neuropathy of the facial nerve. However, studies evaluating the prevalence of this agent in peripheral facial palsy are heterogeneous regarding sample group selection, laboratory analysis method and variables studied. In addition, there are a lack of epidemiological data in the Brazilian population on this serological phenomenon in peripheral facial palsy. This study estimated herpes zoster reactivation prevalence in serological samples through chemiluminescence immunoassay for quantitative determination of specific antibodies directed against the virus.

Methods

This cross-sectional study sought to determine the prevalence of viral reactivation by herpes zoster in subjects with idiopathic peripheral facial palsy through analysis of serological samples over a year.

Results

Forty-seven patients (32 females and 15 males) participated. Severe paralysis was more common in older patients (p = 0.017). Facial pain (p = 0.02) and vertigo (p = 0.001) were related to a worse evolution of facial palsy. The rate of serological reactivation of the virus was 12.76 per cent.

Conclusion

The rate of serological reactivation of herpes virus in idiopathic peripheral facial palsy in our population is similar to foreign literature data, suggesting similar aetiological mechanisms in the genesis of this morbidity.

A Case Report of Infantile Ramsay Hunt Syndrome

Ramsay Hunt Syndrome is a rare condition in children. There are currently no internationally accepted protocols in the management of these patients. We present a case of a 9 month old child that presented to our Department with Ramsay Hunt syndrome. Included is the management of the clinical condition and a brief literature review. Early identification, a high index of suspicion and prompt treatment is required to achieve a good clinical outcome.

Therapeutic Effect of 0.1% Topical Tacrolimus for Childhood Interstitial Keratitis Refractory to Cyclosporine

PURPOSE

To report our findings in a case of childhood refractory interstitial keratitis successfully treated with 0.1% topical tacrolimus.

METHODS

A 12-year-old boy presented with a 3-year history of interstitial keratitis. For the recurrent interstitial keratitis he had been treated with topical and systemic acyclovir, steroids, and topical cyclosporine for 3 years. Our examinations revealed severe stromal infiltrates and neovascularization. Treatment was changed from topical 0.5% cyclosporine to topical 0.1% tacrolimus combined with topical acyclovir and betamethasone.

RESULTS

After 2 weeks of treatment with topical tacrolimus, the degree of stromal infiltrates decreased. Although the improvements were slow, the stromal infiltrates resolved somewhat, and neovascularization and topical acyclovir and betamethasone were tapered and stopped in 18 months. Since then, the patient has not shown any recurrence for 9 months without medication.

CONCLUSION

Our findings indicate that topical tacrolimus should be considered for treating refractory interstitial keratitis in children.

Pediatric Ramsay Hunt Syndrome: Analysis of Three Cases

Ramsay Hunt syndrome (RHS) is a disorder characterized by herpetic eruptions on the auricle, facial paralysis, and vestibulocochlear dysfunction and is attributed to varicella zoster virus (VZV) infection in the geniculate ganglion. Although it is a common cause of acute peripheral facial paralysis, children are not usually affected. The diagnosis is based on history and physical findings. Treatment of RHS uses a combination of high-dose corticosteroids and acyclovir. This paper presents three cases diagnosed as RHS in the pediatric age group in association with the literature review. The aim of this paper is to emphasize the importance of careful examination and early initiation of therapy in suspected cases of RHS.

The association of Varicella zoster virus reactivation with Bell's palsy in children

OBJECTIVES

Bell's palsy is considered the most common cause of facial nerve paralysis in children. Although different theories have been postulated for its diagnosis, reactivation of the Varicella zoster virus (VZV) has been implicated as one of the causes of Bell's palsy. The aim of the study was to evaluate the association of Varicella-zoster virus infection with Bell's palsy and its outcome in children.

METHODS

A total of 30 children with Bell's palsy were recruited and were assayed for evidence of VZV infection. The severity of facial nerve dysfunction and the recovery rate were evaluated according to House-Brackmann Facial Nerve Grading Scale (HB FGS). Paired whole blood samples from all patients were obtained at their initial visit and 3 weeks later, and serum samples were analyzed for VZV IgG and IgM antibodies using ELISA.

RESULTS

A significantly higher percentage of Bell's palsy patients were seropositive for VZV IgM antibodies than controls (36.6% of patients vs 10% of controls) while for VZV IgG antibodies the difference was statistically nonsignificant. HB FGS in Bell's palsy patients with serologic evidence of VZV recent infection or reactivation showed a statistiacally significant less cure rate than other patients.

CONCLUSIONS

VZV reactivation may be an important cause of acute peripheral facial paralysis in children. The appropriate diagnosis of VZV reactivation should be done to improve the outcome and the cure rate by the early use of antiviral treatment.

Peripheral facial palsy in children

The aim of this study is to evaluate the types and clinical characteristics of peripheral facial palsy in children. The hospital charts of children diagnosed with peripheral facial palsy were reviewed retrospectively. A total of 81 children (42 female and 39 male) with a mean age of 9.2 ± 4.3 years were included in the study. Causes of facial palsy were 65 (80.2%) idiopathic (Bell palsy) facial palsy, 9 (11.1%) otitis media/mastoiditis, and tumor, trauma, congenital facial palsy, chickenpox, Melkersson-Rosenthal syndrome, enlarged lymph nodes, and familial Mediterranean fever (each 1; 1.2%). Five (6.1%) patients had recurrent attacks. In patients with Bell palsy, female/male and right/left ratios were 36/29 and 35/30, respectively. Of them, 31 (47.7%) had a history of preceding infection. The overall rate of complete recovery was 98.4%. A wide variety of disorders can present with peripheral facial palsy in children. Therefore, careful investigation and differential diagnosis is essential.

Herpes zoster oticus (Ramsay Hunt syndrome) in children: case report and literature review

INTRODUCTION

Approximately 10% of patients with peripheral facial nerve palsy are children. Facial nerve palsy is usually idiopathic. An uncommon cause is herpes zoster oticus (Ramsay Hunt syndrome). This syndrome usually affects adults and is rare in children.

METHODS

We reviewed the literature and describe the cause, clinical manifestations, and treatment of Ramsay Hunt syndrome. We also report a case of the syndrome in a 12-year-old boy.

CONCLUSION

Ramsay Hunt syndrome is characterized by peripheral facial paralysis associated with herpetic eruption on the auricula and external ear, and by vestibulocochlear dysfunction. It occurs by reactivation of latent varicella-zoster virus (VZV) in the geniculate ganglion, affecting the seventh and eighth cranial nerves. The diagnosis is based on history and physical findings. Treatment of Ramsay Hunt syndrome uses a combination of high-dose corticosteroids and acyclovir. Although the prognosis is better in children than in adults, it is not good enough.

Facial palsy in children: emergency department management and outcome

OBJECTIVE

To describe the characteristics of children who present to an emergency department (ED) with facial palsy and determine the association of outcome with etiology, degree of initial paralysis, and ED management.

METHODS

This was a retrospective cohort study of children who presented to an ED with facial nerve paralysis (FNP).

RESULTS

There were 85 patients with a mean age of 8.0 (SD, 6.1) years; 60% (n = 51) of the patients were male, and 65.9% (n = 56) were admitted to the hospital. Bell palsy (50.6%) was the most common etiology followed by infectious (22.4%), traumatic (16.5%), congenital (7.1%), and neoplastic etiologies (3.5%). Patients with Bell palsy had shorter recovery times (P = 0.049), and traumatic cases required a longer time for recovery (P = 0.016). Acute otitis media (AOM)-related pediatric FNP had shorter recovery times than non-AOM-related cases (P = 0.005) in infectious group. Patients given steroid therapy did not have a shorter recovery time (P = 0.237) or a better recovery (P = 0.269). There was no difference in recovery rate of pediatric patients with Bell palsy between hospitalization or not (P = 0.952).

CONCLUSION

Bell palsy, infection, and trauma were most common etiologies of pediatric FNP. Recovery times were shorter in pediatric patients with Bell palsy and AOM-related FNP, whereas recovery took longer in traumatic cases. Steroid therapy did not seem beneficial for pediatric FNP. Hospitalization is not indicated for pediatric patients with Bell palsy.

Outcomes of facial palsy in children

CONCLUSIONS

Facial palsy in children might be an alarming sign of serious underlying disease such as tumor, systemic disease or congenital anomalies and the recovery is poor in those cases. Therefore, careful investigation and differential diagnosis are essential in children. Prednisolone does not make a significant difference in the outcome in the treatment of children with Bell's palsy. The prognosis of Bell's palsy in the pediatric group is good; patients usually recover within 3 months.

OBJECTIVES

To review and analyze the etiology, management, and outcome of facial palsy in children.

PATIENTS AND METHODS

Using a retrospective chart review, patients under the age of 15 years with a diagnosis of facial palsy were collected from 1996 to 2002.

RESULTS

A total of 56 cases (29 male, 27 female) with a mean age of 6.9±4.5 years were included in this analysis. Causes of facial palsy were Bell's palsy (44 patients, 78.6%), neoplastic (4 patients, 7.1%), head injury (3 patients, 5.4%), congenital (3 patients, 5.4%), or infectious (2 patients, 3.6%). In Bell's palsy there was no significant difference in the recovery rate between the groups with or without prednisolone treatment and between the groups that received medication within 1 week of syndrome onset or after more than 1 week.

Safety of varicella vaccine after licensure in the United States: experience from reports to the vaccine adverse event reporting system, 1995-2005

Widespread use of varicella vaccine in the United States could enable detection of rare adverse events not identified previously. We reviewed data from 1995 to 2005 from the Vaccine Adverse Event Reporting System, including data from laboratory analyses, to distinguish adverse events associated with wild-type varicella-zoster virus (VZV) versus those associated with vaccine strain. Almost 48 million doses of varicella vaccine were distributed between 1995 and 2005. There were 25,306 adverse events reported (52.7/100,000 doses distributed); 5.0% were classified as serious (2.6/100,000 doses distributed). Adverse events associated with evidence of vaccine-strain VZV included meningitis in patients with concurrent herpes zoster. Patients with genetic predispositions may rarely have disease triggered by receipt of varicella vaccine. Overall, serious adverse events reported after varicella vaccination continue to be rare and must be considered relative to the substantial benefits of varicella vaccination. Ongoing safety surveillance and further studies may shed light on some of the hypothesized associations.

Management of peripheral facial nerve palsy

Peripheral facial nerve palsy (FNP) may (secondary FNP) or may not have a detectable cause (Bell's palsy). Three quarters of peripheral FNP are primary and one quarter secondary. The most prevalent causes of secondary FNP are systemic viral infections, trauma, surgery, diabetes, local infections, tumor, immunological disorders, or drugs. The diagnosis of FNP relies upon the presence of typical symptoms and signs, blood chemical investigations, cerebro-spinal-fluid-investigations, X-ray of the scull and mastoid, cerebral MRI, or nerve conduction studies. Bell's palsy may be diagnosed after exclusion of all secondary causes, but causes of secondary FNP and Bell's palsy may coexist. Treatment of secondary FNP is based on the therapy of the underlying disorder. Treatment of Bell's palsy is controversial due to the lack of large, randomized, controlled, prospective studies. There are indications that steroids or antiviral agents are beneficial but also studies, which show no beneficial effect. Additional measures include eye protection, physiotherapy, acupuncture, botulinum toxin, or possibly surgery. Prognosis of Bell's palsy is fair with complete recovery in about 80% of the cases, 15% experience some kind of permanent nerve damage and 5% remain with severe sequelae.