Pacing

Program a temporary epicardial pulse generator — mode, rate, output (mA) and sensitivity (mV) — over a chosen underlying rhythm. Watch for capture and sensing, and reproduce loss of capture, undersensing and oversensing.

BEDSIDE MONITOREPICARDIAL WIRES

ECG--bpm

ART--/--mmHg

MODE

SET RATE

-- ppm

CAPTURE

—

SENSING

—

PACE / SENSE

AP VP AS VS

CAPTURE THRESHOLD A / V

-- / -- mA

Pacing mode

D/V/A/O = dual / ventricle / atrium / none. Third letter O = asynchronous (no sensing).

Pulse generator

Rate 70 ppm

AV delay 160 ms

Atrial output 5.0 mA

Ventricular output 5.0 mA

Atrial sensitivity 0.8 mV

Lower mV = more sensitive.

Ventricular sensitivity 2.0 mV

Lower mV = more sensitive.

Underlying rhythm

Leads & faults