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Biomedical subjects

R D Gursahani

Publications and source records attributed to R D Gursahani.

5 recordsLinked to original sources

Megalencephalic leukodystrophy in an Asian Indian ethnic group.

Over a 10-year period, we reviewed 30 patients with leukodystrophy, megalencephaly, and a relatively benign course. Most of these patients (26) belonged to a distinctive ethnic group called the Agrawals. Head circumference exceeded the 95th percentile in 28 patients; 22 patients had seizures; 22 had pyramidal signs (16 more pronounced and 6 mild); and 16 had cerebellar ataxia. The median age of onset of symptoms was 1.8 years. Interictal electroencephalogram (EEG) was abnormal in 21 of 23 patients. The inheritance is possibly autosomal recessive.

Adolescent↗

Vasculitic neuropathy: profile of twenty patients.

Twenty patients with vasculitic neuropathy were analyzed. Sixteen of the twenty presented with classic mononeuritis multiplex but four had distal, symmetrical, sensorimotor polyneuropathy. Though vasculitic neuropathy is classically associated with Collagen vascular syndromes like, polyarteritis nodosa, rheumatoid arthritis and systemic lupus erythematosis, only 13/20 of our patients had definitive Collagen vascular disease. A large proportion (7/20) had vasculitic neuropathy as the only clinical feature.

Adult↗

Practice patterns in neurology in India.

Sixteen Indian neurologists saw 1,850 patients over a sample 6-day working week. The average daily workload comprised 19 patients including 11 new cases. Epilepsy (27.0%), headache (19.0%) and cerebrovascular disorders (7.8%) were the commonest problems. Only 2.5% fell in the ICD-9-CM categories 780-799 consisting of symptoms, signs and ill-defined conditions. In 43% it was felt that the neurologic consult was not necessary. In the Indian setting this would suggest that emphasis should be on neurologic education of primary care physicians and internists for the appropriate utilization of limited resources.

Humans↗

Simplified technique for recording human cortical & spinal evoked muscle potentials.

Muscle responses evoked on transcranial stimulation of the motor cortex (corticomotor) and motor roots (spinal) were studied in 20 healthy volunteers using a simplification of Rossini's technique and conventional EMG equipment. Cortical motor responses were consistently obtained from the contralateral upper limb with tolerable stimuli. Lower limb motor responses were inconsistent and sometimes required uncomfortably high stimulus strengths. In the upper limbs, peripheral conduction time (PCT) was estimated by the latency of the response to spinal stimulation. A comparable measure of PCT was obtained for the abductor pollicis brevis (APB) from the F-responses. The difference between the latency of the corticomotor response and the PCT was considered to represent central motor conduction time (CMCT). Corticomotor latencies were: APB 18.51 +/- 1.1 msec, biceps 9.77 +/- 0.46 msec and tibialis anterior 26.5 +/- 2.9 msec. CMCT from cortex to C8/T1 segments (APB) was 4.68 +/- 0.6 msec and between cortex and C5/C6 (biceps) 4.24 +/- 0.42 msec.

Adult↗