The screen shows the frontend of the version 5a program, and the various menus. The left hand menu gives the options of either running the Datex program (collect, store and display data from the Datex AS/3 monitor), or a BMI program, or the TEPID tube & epidural database program (predict tube and epidural size and depth).
(November 1997): The screen shows (A) four horizontal 80 minute graphic windows (`trend data'), and (B) one vertical window at top right (current data; known as the `NOW' window): Sat (red), ECG hr (yellow), sat hr (blue), BP range (red in NOW window; green in trend window), FIO2 (green in NOW window; red in trend window), CVP (pale blue). There is a `text' area on the right (below the `NOW' window) giving (in green) the time, current values of some respiratory & MAC parameters; parameters showing an `alarm' state (total MAC and Hr in this case) are displayed in red.
The bottom horizontal graphic window (vapour window) shows total MAC (yellow), inspired vapour (dark blue), expired vapour (red). The serial port data was accessed every 5 seconds from a Datex anaesthesia monitor.
Note that the top trend window reveals diathermy interference with the ECG as shown by scattered yellow dots (ECG hr) about a steady dark blue line (oximetry-probe hr). The BP is continuous (arterial line). There is a period of about 5 minutes of no gas sampling (the gas sampling probe is temporarily disconnected as the patient is bagged by hand on 100% oxygen while a double-lumen tube problem is fixed as the anaesthetist implements one-lung ventilation) during which saturation remains 100%. Following the start of one-lung ventilation we can see that the FIO2 is increased, the tidal volume is reduced, and the ETCO2 raised. There is a further short period of reduced tidal volume and a rise in ETCO2 which then reduces as the tidal volume increases.
(April 1997): The F-button layout (bottom of screen) includes a diabetes option (reminds the anaesthetists to monitor blood sugar etc).
(June 1998): The BP is intermittent (NIBP). Note the episode of high inspired CO2 (red) while the soda-lime was being changed.
RWD Nickalls (2009)
