Biomedical subjects

B O Baldwin

Publications and source records attributed to B O Baldwin.

2 recordsLinked to original sources

PubMed1997

Surface electromyographic characteristics of swallowing in dysphagia secondary to brainstem stroke.

Surface electromyography (SEMG) provides an noninvasive avenue for evaluating swallowing physiology. This report describes SEMG characteristics associated with swallow attempts in 6 dysphagic patients who had suffered brainstem stroke compared with 6 age and gender-matched controls. Results indicated that patients with dysphagia secondary to brainstem stroke differed in both amplitude and timing aspects of swallowing attempts from asymptomatic controls. Specifically, the results indicated that during swallow attempts, dysphagic patients produced more muscle activity over a shorter duration and with less coordination than controls. Potential physiological mechanisms of these results are discussed.

Aged↗

PubMed1994

Objective distance measurements from videofluorographic swallow studies using computer interactive analysis: technical note.

Application of new technologies to study swallowing and its disorders will facilitate better understanding of both normal and disordered swallowing. Recent application of computer-assisted analysis of video-fluorographic swallow tapes has enhanced objective measurement of distance as well as timing characteristics of swallowing. Application of these systems requires consideration of system capability, calibration for distance measures, nature of measurements, and potential clinical/research benefits. This report describes a commercially available computer-interactive system for analyzing video images, discusses calibration procedures, and demonstrates practical applications using defined measures.

Calibration↗