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B F McCabe

Publications and source records attributed to B F McCabe.

154 records · Page 9Linked to original sources
PubMedDate not supplied

An international test battery for cochlear implant patients.

It is now clear that cochlear implants can provide useful hearing for profoundly deaf adults, and that multichannel devices give the brain more information than most single-channel devices. We are in a dilemma as to how to compare the many multichannel devices, because of the language barrier. Virtually no multichannel wearer is equally testable in two, let alone more languages. A test battery that abstracts beyond language is proposed, utilizing carefully constructed non-linguistic syllables and its development underway.

Cochlear Implants↗
PubMedDate not supplied

Photoplethysmography in the prediction of experimental flap survival.

A standard photoplethysmograph, modified to differentiate between arterial and venous vasculature in skin tissue, has been used to measure arterial supply in 100 unipedicle skin flaps in 25 pigs. A datum transform from a light intensity scale to a relative arterial blood density scale has been introduced and empirically labelled the vascular coefficient (VC). Statistical analysis of the VC data shows a significant difference between necrotic and surviving flap group mean data as early as 24 hours. Additional analysis in which a normal ogive was fitted to the sample VC data distributions suggests that statistically significant predictions of the probability of eventual flap necrosis can be made using VC measurements obtained immediately postoperatively. It is concluded that the modified photoplethysmograph in conjunction with the VC data transform, constitutes a usable measuring technique for skin flap viability prediction in the experimental animal.

Animals↗
PubMedDate not supplied

Factors influencing tympanostomy tube function and extrusion: a study of 1,127 ears.

Shepard, long polyethylene, and Reuter-bobbin tympanostomy tubes were studied for longevity in the inferior and anterior quadrants of 1,127 tympanic membranes. Factors that improved tube functioning time significantly for all or certain tube types included (1) general anesthesia; (2) "virgin" tympanic membranes (Shepard, Reuter-bobbin), (3) age of 9 years or younger (Reuter-bobbin), (4) normal or thin tympanic membranes (Reuter-bobbin), and (5) middle ear fluid (Reuter-bobbin for all types of fluid). Negative correlations (or those not statistically significant because of such factors as sample size) for longevity of tube functioning time included (1) effect of multiple previous intubations in the same ear, (2) age over 10 years, and (3) quadrant of insertion. No significant difference in longevity was noted between normal patients and those with a repaired or unrepaired cleft palate deformity. The data suggest that the epithelial layer of the tympanic membrane influences the longevity of the tympanostomy tube function.

Adolescent↗
PubMedDate not supplied

Dean M. Lierle, MD.

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History of Medicine↗