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Biomedical subjects

S K Vishwakarma

Publications and source records attributed to S K Vishwakarma.

13 recordsLinked to original sources
PubMed1990

Osteogenic sarcoma of the frontal sinus.

Occurrence of osteogenic sarcoma in the craniofacial bones is limited. The case presented here is only the second reported case of osteogenic sarcoma of the frontal sinus, occurring in an 80-year-old woman who presented with proptosis and developed neurologic symptoms. The radiographic appearance was of a diffuse opacity with thickening of the calvaria. Tumor tissue was adherent to the dura, and there was a fairly good initial response with the methotrexate sodium-cisplatin combination chemotherapy used, but the outcome was fatal.

Aged↗
PubMed1989

Toy weapons and firecrackers: a source of hearing loss.

Although acoustic injury as a result of exposure to noisy toys and firecrackers has been reported previously, most of these studies have been conducted on adults. The purpose of this prospective study, conducted at the time of Deepawali, an Indian festival of fireworks, was two-fold: 1. to measure the acoustic output of representative samples of toy weapons and firecrackers and the intensity level at critical spectator points from the site of emission; and 2. to determine the auditory status of a cross section of the target population, involving 600 participants from various age groups, before and after exposure to firecracker noise at Deepawali. The average sound level at a distance of 3 m was 150 dB, thus exceeding the damage risk criterion for adults (i.e., 130 dB peak level). An average 30 dB persistent sensorineural hearing loss was found in 2.5% of the target population as a result of toy weapon/firecracker noise during Deepawali. The 9- to 15-year-old age group was most affected. A judicious approach in the manufacture and use of toy weapons and firecrackers, in addition to legal restraints, is advocated.

Adolescent↗
PubMed1987

Superior orbital fissure syndrome in trigemino-facial zoster.

A case of trigemino-facial zoster presenting as Superior Orbital Fissure Syndrome is reported. Geniculate ganglion involvement was limited to the vestibular branch of the cochleo-vestibular nerve, without any hearing impairment or facial palsy. This case clearly illustrates that herpes zoster cranialis is a polyneuropathy of multifocal asynchronous viral activity and can present in numerous forms.

Adult↗
PubMed1986

Anatomic basis of Arnold's ear-cough reflex.

A clinical survey of 500 patients revealed 4.2% incidence of Arnold's ear-cough reflex. The reflex was bilateral in 2.8% of the patients. It was also elicitable from the anterior meatal wall in 2% of the patients, thus questioning the classically taught distribution of Arnold's nerve. Arnold's nerve also mediates the auriculo-palatal, auriculo-lacrimal, auriculo-cardiac and the ear-vomiting reflexes; but these are less apparent and not so commonly encountered.

Cough↗
PubMed1980

Neuroleptanalgesia in otorhinolaryngology.

NEUROLEPTANALGESIA is described for its use in the management of otolaryngologic cases undergoing elective surgery. 100 cases have been reviewed extensively. The advantages and possible problems are outlined. It seems to be a highly satisfactory alternative to conventional general anesthetic techniques for most ear, nose and throat procedures and operations, where quiescence rather than anesthesia is required. The absence of direct myocardial depression and a marked decrease in operative and post-operative morbidity constitute the principal advantages.

Adolescent↗
PubMedDate not supplied

Dermoid (hairy polyp) of the nasopharynx.

Dermoids or hairy polyps, the most primitive forms of teratoma are rare lesions affecting the nasopharynx. They arise during early embryogenesis, being derived from only two germinal layers, ectoderm and mesoderm and are invariably benign. They usually present at or soon after birth with signs of upper aerodigestive tract obstruction. A case of hairy polyp of nasopharynx in a neonate is reported for its rarity. The etiology of teratomas, their classification in head and neck region, clinical features, and management in neonates are discussed.

Dermoid Cyst↗