No abstract available.
Administration, Intravesical* ; Humans ; Reflex, Abnormal*

The vibratory inhibition index(V.I.I.) of H-reflex, H/M(mean H-reflex amplitude / mean M wave amplitude) and F/M(mean F wave amplitude / mean M wave amplitude) ratios were measured in patients of hyperreflexia with or without spasticity. These data were compared with age-matched control subjects. In comparison to normals, V.I.I. And F/M ratios were increased at statistically significant levels(versus normal : V.I.I. P<0.001, F/M p<0.005) in patient group. And V.I.I.'s were inclined to be correlated with F/M ratios without statistical significance(r=0.27, p=0.21). H /M ratios showed no significant difference between patient and control groups. In these patients, the normal significant correlation between mean F wave amplitude and M wave amplitudes was maintained(p<0.01). F/M ratios were negatively correlated with rnotor nerve conductoion velocity(r= -0.72, p<0.01).These results indicate that V.I.I. And F/M ratios increase in patients with hyperreflexia and/or spasticity. Although mechanisms differ, the data are consistent with a similar physiological responses of H-reflex and F wave to spasticity.
H-Reflex* ; Humans ; Muscle Spasticity* ; Reflex, Abnormal

No abstract available.
Autonomic Nervous System ; Hypohidrosis* ; Reflex, Abnormal*

PURPOSE: We classified DH(detrusor hyperreflexia) into variable urodynamic findings as DHIC(detrusor hyperreflexia with impaired contractility), DHDP(detrusor hyperreflexia with dyssynergia pattern), and NCDDH(non-impaired contractility < non-dyssynergia pattern detrusor hyperreflexia). The aim of this study was to elucidate the reliability of the difference among the classified DH through a urodynamic study. MATERIALS AND METHODS: Sixty-nine patients showed DH, which was defined as an involuntary detrusor contraction of more than 15cmH2O with involuntary urine leakage with only a cerebrovascular accident (CVA), by urodynamic study. We classified DH(n=69) into three subgroups as DHIC(n=22)(Pdet.max<30cmH2O, Qmax<12ml/s), DHDP (n=19)(Pdet.max>50cmH2O, Qmax<12ml/s), and NICNDP-DH(n=28). RESULTS: Mean fraction of voided volume of DHIC(41.7+/-1.8%) and DHDP (38.3+/-2.2%) were significantly less than that of NCDDH (98.5+/-3.2%) according to the urodynamic study (p<0.01). Mean voiding pressure was 25.8+/-0.7cmH2O in DHIC, which was significantly less. However, 96.3+/-10.4cmH2O in DHDP was significantly more than that of NCDDH(p<0.01). Mean age was 83.8+/-1.2 years old in DHIC, which was significantly older than the mean age of the other groups(p=0.01). CONCLUSIONS: Variable findings of the urodynamic study were found in patients with DH as clinical parameters. Thus, we must treat the DH patients with individual therapy based on urodynamic findings.
Ataxia ; Humans ; Reflex, Abnormal* ; Stroke* ; Urodynamics*

A 38-year-old man developed weakness in all limbs 3 days prior to admission. Motor examination showed decreased strength in the limbs, but sensory examination was normal. Deep tendon reflexes were hyperactive. Electrophysiological examination showed conduction blocks with nearly normal conduction velocities and terminal latencies in the motor nerves and normal amplitudes and velocities in the sensory nerves. Acute motor conduction block neuropathy with hyperreflexia may be another variant of Guillain-Barre syndrome.
Adult ; Extremities ; Guillain-Barre Syndrome ; Humans ; Reflex, Abnormal ; Reflex, Stretch

Early diagnosis of persistent abnormal reflexes may be of great significance to a more effective functioning of the cerebral palsied child. It is important to know the normal and abnormal reflex responses and their effect upon motor development for providing a basis for evaluation in the diagnosis and treatment of the cerebral palsied child. We studied 28 cerebral palsied children, between 1 to 12 years old, who were treated at Sam Yook Childrens Rehabilitation Center from May 1975 to December 1977. The pathologic reflexes were checked, and the relationship between pathologic reflexes and walking was compared. The following results were obtained. 1. The following were the most important pathologic reflexes in non-walking fgroup: a. Positive supporting reaction b. Protective extensor thrust c. Moro reflex 2. If they are present, the prognosis for walking ambulation was bad and surgery will not improve for the chances of walking.
Child ; Diagnosis ; Early Diagnosis ; Humans ; Prognosis ; Reflex ; Reflex, Abnormal ; Reflex, Startle ; Rehabilitation Centers ; Walking

PURPOSE: To evaluate neurosurgical effect in the pediatric patients with myelodysplasia we reviewed preoperative and postoperative videourodynamic results. MATERIALS AND METHODS: All the 24 patients received untethering of spinal cord. Twenty postoperative urodynamic studies were performed between 6 months and 1 year, and 4 were performed at 3 months after operation. Uninhibited contraction and detrusor-sphincter dyssynergia(DSD) were checked in the patients having detrusor contraction and leak pressure was measured in areflexic bladder. RESULTS: Preoperative normal urodynamic finding was found in 6 patients. Among them one patient showed hyperreflexia with synergic voiding after operation. Normal detrusor contraction with DSD was found in 2 patients preoperatively One of these patients changed to high pressure areflexia Nine patients showed hyperreflexia preoperatively. Four patients among them had DSD. Five hyperreflexic bladders without DSD showed normoreflexia without 858 in one, low pressure areflexia in 3 and no change in one after operation. Out of four patients with hyperreflexia having DSD 2 showed high pressure areflexia, 1 showed atomic bladder and no change was seen in one. Seven patients had areflexia preoperatively. One patient with low pressure areflexia preoperatively showed high pressure areflexia postoperatively and 6 patients with high pressure areflexia preoperatively showed hyperreflexia with DSD in two and atonic bladder in one and no changes in 3 patients. CONCLUSIONS: From the above data we think that main urodynamic effect by neurosurgical treatment is decreasing detrusor activity. Although this effect on detrusor contraction is likely to be beneficial to myelodysplastic patients, more durable sphincteric activity may offset this profit.
Humans ; Reflex, Abnormal ; Spinal Cord ; Urinary Bladder ; Urodynamics*

The clinical and urodynarnic studies for urinary dysfunction were performed in 35 patients with idiopathic parkinson's disease who admitted at Hanyang University Hospital from January, 1988 to June, 1990. The results are as follows; 1. Urinary dysfunction was noted in 9 patients (25.7%) with idiopathic parkinson's disease Their cysto / uroflowmetry showed detrusor hyperreflexia in 6 patients, and detrusor hyporeflexia in 3 patients. The common urinary symptoms were frequency, incontinence, hesitency, decreased urinary force, and retention in that order. 2. The mean time-interval from the onset of initial parkinsonian symptoms to the development of urinary symptoms was 22.6 months (ranged from 3 to 48 months). Urinary dysfuncion showed no correlation with clinical severity of parkinson's disease. 3. The frequency of urinary dysfunction was greater in rigidity-predominant parkinsonian group than patients with tremor. Cysto / uroflowmetry in the former showed detrusor hyperreflexia more frequently than detrusor hyporeflexia. 4. It was suggested that urinary dysfunction in idiopathic parkinson's disease probably result from multifactorial causes such as the change of neuronal effect, dysautonomia, and skeletal rigidity.
Humans ; Neurons ; Parkinson Disease* ; Primary Dysautonomias ; Reflex, Abnormal ; Tremor

PURPOSE: A limited number of studies have examined the link between F-wave abnormalities and clinical presentation in pediatric Guillain-Barré syndrome (GBS). Therefore, this study examined the importance of F-wave abnormalities as a prognostic factor in pediatric GBS patients. METHODS: The records and electrodiagnostic studies (EDS) of 70 GBS patients were retrospectively evaluated, and divided into 2 groups according to the results of EDS. Group A (n=33) presented with F-wave abnormalities, and group B (n=26) exhibited normal findings. We compared laboratory reports, clinical features, response to treatment, and prognosis between the 2 groups. RESULTS: Motor weakness was the most frequently observed symptom for either group. Clinically, the incidence of fever and upper respiratory symptoms differed between the 2 groups, while the prevalence of abnormal deep tendon reflex (DTR) was significantly higher in group A than B (P<0.05). Patients diagnosed with GBS had received intravenous immunoglobulin treatment: 94% in group A and 58% in group B. Furthermore, significantly greater numbers of patients in group A showed H-reflex abnormalities and poor prognosis compared with group B (P<0.05). CONCLUSION: This study demonstrated that F-waves are a clinically important prognostic factor in GBS. F-wave abnormalities were associated with abnormal DTR and poor prognosis in patients. Limited studies have examined the link between F-wave abnormalities and clinical results; therefore, further randomized controlled studies are needed to confirm the clinical characteristics and efficacy of treatments.
Child* ; Fever ; Guillain-Barre Syndrome* ; H-Reflex ; Humans ; Immunoglobulins ; Incidence ; Prevalence ; Prognosis ; Reflex, Abnormal ; Retrospective Studies

Neurologists are occasionally confronted with patients who have unique symptoms of bilateral but regional weaknesses that do not conform to the typical case with Guillain-Barre syndrome (GBS). Acute facial diplegia is a very uncommon neurologic manifestation that can be the presenting symptom in a wide range of diseases. We describe a 32-year-old male patient with acute facial diplegia and distal limb paresthesias without diminished reflexes. His neurophysiologic studies, CSF albuminocytologic dissociation and the clinical course are in keeping with a regional variant of GBS. The absence of hyporeflexia does not necessarily exclude the diagnosis of a GBS variant.
Adult ; Diagnosis ; Extremities ; Guillain-Barre Syndrome* ; Humans ; Male ; Neurologic Manifestations ; Paresthesia ; Reflex ; Reflex, Abnormal