M F Seidemann

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Fifty-nine cases of tuberculous meningitis in children seen at the Charity Hospital at New Orleans since the addition of isoniazid to the therapy in 1952 are reviewed. Fourteen of the children died during hopsitalization. At discharge 21 children had complete or nearly complete clinical recovery. Follow-up of 21 available long-term survivors revealed a(More)
Acoustic-reflex adaptation was assessed in 49 normal ears. Acoustic reflexes were elicited by the use of contralateral stimulation at four frequencies and five sensation levels. The results displayed the effects of stimulus frequency and sensation level on the amount of acoustic-reflex adaptation. Suggestions are presented for clinical procedures for(More)
The pathophysiological relationship of Eustachian tube dysfunction to middle ear effusion is widely accepted. Several techniques have been developed for utilizing the clinical measurements of acoustic immittance to assess the ventilatory status of the Eustachian tube. This article describes the array of procedures currently in use as well as a selection of(More)
Eustachian tube patency was assessed tympanometrically in a group of otologically normal children at a pediatric outpatient clinic. A pressure-swallow technique of assessing eustachian tube patency was administered. The results indicated the importance of the examination of both middle ear pressure and function changes in the evaluation of eustachian tube(More)
Averaged electroencephalic audiometry has previously demonstrated that cortical responses to auditory stimuli increase and decrease in a direct relationship with stimulus sensation levels. This study utilized a conditioning paradigm with bimodal stimulus presentations in order to effect an enhancement of the auditory evoked response at low sensation levels(More)
Available electroacoustic middle-ear measurement instruments report information concerning middle-ear function in at least six different terms. These terms are used to report middle-ear function: impedance, compliance, admittance, susceptance, conductance, and volume. A standard system for the clinical expression of middle-ear measurements, regardless of(More)
This paper reviews recent studies on the tympanometric assessment of Eustachian tube patency involving the traditional technique of assessing pressure equilibration plus the analysis of changes in middle-ear ability to transmit energy through its system (middle-ear function). Normative data in the literature on 89 pediatric ears and 48 adult ears are(More)