一种用于动态记录肺动脉压力的新系统。
A new system for ambulatory pulmonary artery pressure recording.
作者信息
Gibbs J S, MacLachlan D, Fox K M
机构信息
Department of Cardiology, Royal Brompton National Heart and Lung Hospital, London.
出版信息
Br Heart J. 1992 Aug;68(2):230-5. doi: 10.1136/hrt.68.8.230.
OBJECTIVE
To develop a complete system for the measurement, recording, and analysis of ambulatory pulmonary artery pressure.
DESIGN
The new system consists of a pulmonary artery catheter, an ambulatory recorder, and a desktop computer. Pulmonary artery pressure is measured by a micromanometer tipped catheter with an in vivo calibration system to allow correction for zero drift. This catheter is plugged into a small battery powered recorder. The recorder has two input channels, one for pressure and one for an event marker. The pressure wave is sampled 32 times/s, processed by an in built computer, compressed, and stored in semi-conductor memory. On completion of a recording, data is transferred from the ambulatory recorder through a serial data link to an Acorn Archimedes desktop computer on which further data processing, statistical analysis, graphics, and printouts can be obtained.
RESULTS
The system has been used in 18 patients, with technically successful recording in 14, less than 15 minutes of data loss in three, and 12 hours of data loss in one.
CONCLUSIONS
A new system for ambulatory pulmonary artery monitoring has been developed and used clinically with success. It may provide new perspectives on the pathophysiology of disease as it applies to everyday life.
目的
开发一套完整的动态肺动脉压测量、记录及分析系统。
设计
新系统由一根肺动脉导管、一台动态记录器和一台台式计算机组成。肺动脉压由带有体内校准系统的微压计尖端导管测量，以校正零点漂移。该导管插入一个由小电池供电的记录器。记录器有两个输入通道，一个用于压力，一个用于事件标记。压力波以每秒32次的频率采样，由内置计算机处理、压缩并存储在半导体存储器中。记录完成后，数据通过串行数据链路从动态记录器传输到Acorn Archimedes台式计算机，在该计算机上可进行进一步的数据处理、统计分析、绘图和打印输出。
结果
该系统已用于18例患者，14例记录技术成功，3例数据丢失少于15分钟，1例数据丢失12小时。
结论
已开发出一种用于动态肺动脉监测的新系统，并在临床上成功应用。它可能为适用于日常生活的疾病病理生理学提供新的视角。
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