PT  - JOURNAL ARTICLE
AU  - H Ikram
AU  - A M Richards
AU  - E J Hamilton
AU  - M G Nicholls
TI  - Continuous recording of pulmonary artery pressure in unrestricted subjects.
AID  - 10.1136/hrt.51.4.421
DP  - 1984 Apr 01
TA  - British Heart Journal
PG  - 421--426
VI  - 51
IP  - 4
4099  - http://heart.bmj.com/content/51/4/421.short
4100  - http://heart.bmj.com/content/51/4/421.full
SO  - Heart1984 Apr 01; 51
AB  - Continuous ambulatory pulmonary artery pressures were recorded using a conventional No 5 French Goodale-Lubin filled catheter linked to the Oxford Medilog system of a portable transducer-perfusion unit and miniaturised recorder. Data retrieval and analysis were performed using a PB2 Medilog playback unit linked to a PDP 11 computer system. The total system has a frequency response linear to 8 Hz allowing accurate pressure recording over the full range of heart rates. Ten recordings in 10 patients yielded artefact free data for 80% or more of the recorded period. This inexpensive reliable method allows pulmonary artery pressures to be recorded in unrestricted subjects.