Development of a three-channel, 24-h ambulatory esophageal pressure monitor

Author

Pfister, Catherine J. ; Harrison, Mark A. ; Hamilton, John W. ; Tompkins, Willis J. ; Webster, John G.

Author_Institution

Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA

Volume

36

Issue

4

fYear

1989

fDate

4/1/1989 12:00:00 AM

Firstpage

487

Lastpage

490

Abstract

The monitor is a battery-operated, microprocessor-based device that measures pressures from three transducers positioned in the esophagus, stores the data in its memory, and transfers the data to an IBM PC computer system at the end of the recording period. Programs on the PC then analyze the data and identify contractile events, categorizing them according to specific parameters. Other programs display the pressure waveforms on the PC and allow visual inspection of the entire recordings or, alternatively, of particular events of interest. The system detects contractile abnormalities in patients with intermittent, noncardiac chest pains. The system was tested on ten normal subjects. A relatively high incidence of what are usually considered ´abnormal´ contractions was found.<>

Keywords

biomechanics; biomedical equipment; patient monitoring; pressure measurement; IBM PC computer system; contractile abnormalities; contractile events densification; intermittent noncardiac chest pains; medical instrumentation; pressure waveforms display; Biomedical monitoring; Capacitive sensors; Computerized monitoring; Data analysis; Digital recording; Esophagus; Pain; Patient monitoring; System testing; Transducers; Esophagus; Humans; Monitoring, Physiologic;

fLanguage

English

Journal_Title

Biomedical Engineering, IEEE Transactions on

Publisher

ieee

ISSN

0018-9294

Type

jour

DOI

10.1109/10.18756

Filename

18756