Gadolinium‐enhanced magnetic resonance imaging in bell's palsy

Schwaber, Mitchell K.; Larson, Theodore; Zealear, David L.; Creasy, Jeffrey L.

doi:10.1288/00005537-199012000-00003

Cited by 95 publications

(56 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This conclusion has been based on previous findings in perioperative and magnetic resonance imaging studies, as well as the significantly better outcome after corticosteroid administration compared with placebo. [27][28][29][30] Peripheral nerves are vascularized by a longitudinal network of vessels linked by many anastomoses between the longitudinal vessels, allowing the blood flow to continue when individual segmental arteries are occluded. This is also the reason why a major impairment in blood flow is necessary to produce experimental ischemic nerve lesions.…”

Section: -26mentioning

confidence: 99%

The Role of Diabetes Mellitus in the Clinical Presentation and Prognosis of Bell Palsy

Riga

Kefalidis

Danielides

2012

The Journal of the American Board of Family Medicine

View full text Add to dashboard Cite

Background: Bell palsy is considered to be an entrapment neuropathy resulting from inflammation, edema, and strangulation. Diabetes, hypertension, and hypercholesterolemia have all been related to microangiopathies. However, the relationship between the frequency, severity, and recovery course of Bell palsy in patients with these pathologies is a matter of controversy.Methods: Fifty-six patients with Bell palsy were evaluated according to the House-Brackmann grading system a few days after the onset of the disease and 6 months later and correlated to their hypertension, hypercholesterolemia, and diabetes records. Diabetes was evaluated by the use of serum glycosylated hemoglobin (HbA1c).Results: The 20 patients with abnormal HbA1c values were more frequently diagnosed with Bell palsy of grade V/VI (P ‫؍‬ .008; odds ratio, 4.7; 95% CI, 1.4 -15.2). However, their House-Brackmann scores were not found to be worse at the 6-month follow-up visit (P ‫؍‬ .9). No correlations were found for hypertension and hypercholesterolemia.Conclusions: A relationship between the severity of Bell palsy and abnormal HbA1c values seems to be demonstrated. However, the prognosis of these patients does not seem to be worse because at the 6-month follow-up visit they present similar scores to nondiabetic patients. (J Am Board Fam Med 2012;25:819 -826.)

show abstract

Section: -26mentioning

confidence: 99%

The Role of Diabetes Mellitus in the Clinical Presentation and Prognosis of Bell Palsy

Riga

Kefalidis

Danielides

2012

The Journal of the American Board of Family Medicine

View full text Add to dashboard Cite

show abstract

“…Although many studies of the anatomy and pathology of the 7th cranial nerve using gadolinium-enhanced magnetic resonance imaging (MRI) have already been published [6][7][8][9][10][11], only scattered cases of HZO have been described, and generally only the MRI appearance of the soft temporal bone structures has been reported [11][12][13][14][15][16].…”

Section: Herpes Zoster Oticus: Correlations Between Clinical and Mri mentioning

confidence: 99%

Herpes zoster oticus: Correlations between Clinical and MRI Findings

Berrettini

Bianchi²,

Segnini³

et al. 1998

Eur Neurol

View full text Add to dashboard Cite

Many gadolinium-enhanced magnetic resonance imaging (MRI) studies focusing on the anatomy and pathology of the 7th cranial nerve have already been published. However, only scattered cases of herpes zoster oticus (HZO) have been described and only the MRI appearance of the soft temporal bone structures has been reported. Enhanced MRI was performed in 4 patients with HZO observed at the Department of Otorhinolaryngology of the University of Pisa. A good correlation was found between the clinical data and MRI findings in both the acute and chronic stages of the disease. The 2 cases with complete facial palsy presented prominent and diffuse enhancement of the 7th and 8th cranial nerves on postcontrast MRI, while the patient with grade III facial palsy showed more limited nerve enhancement. The patient with grade II facial palsy presented no MRI abnormalities. In our series, enhancement limited to the geniculate ganglion and to the labyrinthine segment of the facial nerve indicates a good prognosis while a widespread enhancement correlates with a poor prognosis. In conclusion, MRI with contrast may be useful during the acute stage of HZO because it can confirm the diagnosis and can provide prognostic information on the facial function.

show abstract

“…(3) Eleven published studies [15][16][17][18][19][20][21][22][23][24][25] describing the use of MRI in IFP were reviewed comparing the location of enhancement in the FN during the disorder. These studies included patients who were monitored within 7 days as well as several weeks to months following the onset of paralysis.…”

Section: Methodsmentioning

confidence: 99%

“…Numerous reports on the use of FN MRI after injection of gadolinium diethylenetriaminepentacetic acid (DTPA) in patients with IFP described enhancement of the proximal FN (meatal and labyrinthine), especially the meatal segment, which eventually diminishes, as FN function recovers [15][16][17][18][19][20][21][22][23][24][25][26]. Most of these reports draw the conclusion that the focus of enhancement unique to IFP is located in the meatal FN corroborating the observation of Fisch and Esslen [14].…”

Section: Introductionmentioning

confidence: 99%

Meatal Ganglionitis: Clinical Pathologic Correlation in Idiopathic Facial Paralysis (Bell’s Palsy)

Gacek¹,

Gacek²

1999

Otorhinolaryngol Nova

View full text Add to dashboard Cite

Hypothesis: Present evidence which supports the concept that inflammation of the facial nerve (FN) meatal ganglion (MG) is the site of virus accumulation in idiopathic facial paralysis (IFP). Materials and Methods: Four bodies of evidence are used to support the hypothesis. (1) A case report of a 51-year-old female with left IFP is representative of a series with 5 patients who were monitored with MRI. Sequential MRI of the FN at 1, 8 and 15 weeks after onset of IFP monitored the inflammatory process in the FN. (2) A human temporal bone (TB) taken from an 81-year-old female who recovered from IFP 3 years before death was examined in the light microscope. (3) Eleven reports of MRI in patients with IFP were reviewed. (4) The data from 2 human TB studies describing the MG in normal and abnormal FN are summarized. Results: (1) The MRI of the FN in the majority of imaging reports of patients with IFP demonstrated enhancement of the meatal segment of the FN as the earliest focus in IFP. (2) The meatal FN segment was the earliest site of enhancement in our series of 5 patients with IFP. (3) The TB from the patient who recovered from IFP demonstrated degenerated cells in the MG and degeneration of vestibular neurons innervating cristae. (4) TB studies describe the occurrence of the MG in human FN. In the majority of FN (80%), the MG is represented by a smaller ganglion than the geniculate one. However, the MG equals or exceeds in size the geniculate ganglion in 20% of TB. A second TB study demonstrated ganglion cell lesions consistent with virally induced pathology in the MG and vestibular nerve (and ganglion) in a high percentage of TB. Conclusions: Clinical, radiologic and anatomical evidence supports meatal ganglionitis as a pathologic correlate in IFP.

show abstract

Gadolinium‐enhanced magnetic resonance imaging in bell's palsy

Cited by 95 publications

References 6 publications

The Role of Diabetes Mellitus in the Clinical Presentation and Prognosis of Bell Palsy

The Role of Diabetes Mellitus in the Clinical Presentation and Prognosis of Bell Palsy

Herpes zoster oticus: Correlations between Clinical and MRI Findings

Meatal Ganglionitis: Clinical Pathologic Correlation in Idiopathic Facial Paralysis (Bell’s Palsy)

Contact Info

Product

Resources

About