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Biomedical subjects

S F Hall

Publications and source records attributed to S F Hall.

24 records · Page 2Linked to original sources
PubMed1983

Significance of tomography in Meniere's disease: visualization and morphology of the vestibular aqueduct.

The revival of endolymphatic sac surgery has led to many investigations in Meniere's disease, including lateral tomography of the vestibular aqueduct. Contrary to recent literature, we found no difference in the presence and morphology of the vestibular aqueduct when assessed radiologically in a group of Meniere's patients and a control group. Our assessment of this information in regard to etiology and treatment of Meniere's disease is presented.

Humans↗
PubMed1983

Significance of tomography in Meniere's disease: periaqueductal pneumatization.

The revival of endolymphatic sac surgery has led to many investigations in Meniere's disease, including lateral tomography of the periaqueductal pneumatization. We radiologically assessed a series of Meniere's patients and a control group, and found hypocellularity to be more common in Meniere's disease as the literature has stated. However, we found this finding bilaterally in patients with unilateral disease. Our assessment of this information in regard to the etiology and treatment of Meniere's disease is presented.

Humans↗
PubMed1979

The mechanics of benign paroxysmal vertigo.

Benign paroxysmal vertigo (BPV) is a disorder of the vestibular labyrinth. The clinical features can be explained by an abnormality in the posterior semicircular canal. Under the influence of gravity, a density differential between the endolymph and the cupula will cause displacement of the cupula when changes in head position occur. The presence or absence of fatiguability is a useful test as it helps define etiology, prognosis, and therapy. At the risk of adding yet another classification of nystagmus to the literature, we submit that division of BPV into two types (fatiguable and nonfatiguable) will simplify and rationalize the management of this common complaint.

Adult↗
PubMedDate not supplied

Using the TNM system to predict survival in squamous cell carcinoma of the head and neck.

PURPOSE: To create a classification system for prognosis based on the TNM system for patients with squamous cell carcinoma of the Head and Neck such that patient groupings are homogeneous within and heterogenous between. METHOD: 655 consecutive patients with invasive squamous cell carcinoma of the Head and Neck followed prospectively are split into a training set and a test set. Using the training set, the Cox Proportional Hazards Model and the outcome of dead with disease, we create homogenous prognostic levels based on relative risk. Using the test set, we compare our model to others in the literature. RESULTS: Using the training set we identify 5 prognostic levels and using the test set we demonstrate that our model is superior to others for both within group homogeneity and between group heterogeneity. CONCLUSIONS: A simple classification system can be used to group patients for survival and is valid for future study in prognostication.

Carcinoma, Squamous Cell↗