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Biomedical subjects

J C Stevens

Publications and source records attributed to J C Stevens.

At least 145 records · Page 8Linked to original sources
PubMed1982

An investigation into the use of a force-indentation probe as a possible method of scoring inflammation in gingival tissue.

An attempt is described to use a hand-held force-indentation probe to investigate changes in the consistency of gingiva resulting from chronic inflammation. As the probe is hand-held the gingiva must be indented to about half its depth to reduce the error resulting from hand-shake. Thus the probe measures a combination of hardness and depth of the tissue, as confirmed by tests on rubber. The repeatability of the results obtained from the probe is good, though large variations can occur. Tests on rubber demonstrated that this was not due to the device or the hand-held technique. Force-indentation curves were obtained from 36 patients and were classified by buccal or papillae site and by the gingival index (GI) of two scorers. The mean force-indentation curves for each classification were compared and were found to be related to the GI, there being a significant difference between each pair of curves. Although there is no direct evidence that the force-indentation curves are measuring the same thing as the GI, the results show that the probe may be a useful tool in objectively studying changes in the condition of gingiva.

Adolescent↗
PubMed1982

Basal cell carcinoma in a patient with intestinal polyposis.

A 22-year-old female, with multiple polyposis of the colon and two central nervous system tumors, also suffered from recurrent basal cell carcinoma. The purpose of this report is to alert physicians to the possibility that basal cell carcinoma occurring at an unusually young age may be another manifestation of the familial polyposis syndromes.

Adult↗
PubMed1981

"Social" baths.

Explore the source record for details and available documents.

Aged↗
PubMed1981

Glossopharyngeal (vagoglossopharyngeal) neuralgia: a study of 217 cases.

In 217 cases of glossopharyngeal neuralgia seen at the Mayo Clinic between 1922 and 1977, the disease was more common in patients older than 50 years (57%), but also occurred in 43% who were between 18 and 50. Spontaneous remissions were noted by 161 patients, but 37 had no periods of pain relief. Syncope was rarely a problem. Involvement was bilateral in 12%. The combination of glossopharyngeal and trigeminal neuralgia was found in 25 patients. Positive results on the cocaine test in 112 of 125 patients aided in diagnosis. Carbamazepine is the favored medication. Early surgical experience consisted of extracranial avulsion of the glossopharyngeal nerve or intracranial section at the jugular foramen; since 1948, surgical treatment has included section of the glossopharyngeal nerve and usually the upper rootlets of the vagus nerve and additional section of the fifth cranial nerve when trigeminal neuralgia was associated. Good relief of pain was obtained surgically in 110 patients.

Adolescent↗
PubMed1981

Electrical response audiometry: a survey of its effect on the diagnosis and management of deafness in children.

The effect of the use of electric response audiometry (ERA) on the diagnosis and management of children has been investigated. A retrospective method was employed using the notes of the first 102 hearing assessments in 1978 where an ERA test was performed. The results show that the effect on diagnosis has been to improve the degree of certainty rather than to re-classify patients as deaf or normal. The effect on management has been to reduce by 24% the number of patients that require repeat assessment. These effects are more pronounced in the '0--1 age group' as opposed to the 'above 1 year' age group.

Age Factors↗
PubMed1981

Lumbosacral plexus neuropathy.

We describe 10 cases of lumbosacral plexus neuropathy in which no underlying condition was discovered on initial evaluation or on follow-up examination after an average of 6 years. The patients presented with pain and weakness. Recovery was delayed and often incomplete. When the lower plexus is involved, it may be confused with disk disease manifesting as "sciatica." This syndrome may be a counterpart to the well-described idiopathic brachial plexus neuropathy.

Adolescent↗
PubMed1979

Lateral approach for exploration of the parathyroid gland.

The common use of automated metabolic screening has led to the early discovery of many patients with hyperparathyroidism and an increase in the number of operations performed upon the parathyroid glands. Approaching the parathyroid glands and the posterior aspect of the thyroid lateral to the sternohyoid and sternothyroid muscles has facilitated surgical exploration of these structures and has increased the rate of success of these operations. This approach has been used with 100 per cent success in 67 of 117 operations performed for hyperparathyroidism since 1973.

Adenoma↗
PubMed1978

Preduodenal portal vein: Two cases with differing presentation.

Preduodenal or precholedochal veins are rare developmental anomalies of considerable surgical importance. Injury to these structures because of failure to recognize them during operations for unrelated diseases may result in thrombosis or hemorrhage. We recently encountered this anomaly twice, once in a newborn infant with duodenal obstruction and once in a 54-year-old woman undergoing cholecystectomy. The preduodenal vein was not the primary cause of obstruction in the infant, but injury to the previously unrecognized percholedochal vein in the woman resulted in a considerable loss of blood. Besides describing and illustrating these two cases, we also discuss the anatomy and the embryology of these structures and briefly review the patterns of 44 previously reported cases that we found.

Arteriovenous Malformations↗