Seca ct330 - Notes on Stress with Treadmill

30
2 Hardware
2
Instructions for Use
Resting & Stress ECG with seca ct330/331 and seca diagnostic 5.9
2.8.2 Notes on stress with treadmill
→ The patient should ideally be wearing running shoes or trainers.
→ The patient should not hold on to the handles of the treadmill during
recording. This causes muscle tension which affects the ECG signal.
→ Missing skin tension, in interaction with shoulder movement, will
increase artefacts in the ECG signal.
→ The extremity leads should if possible be applied on taut skin areas
in order to avoid excessive movement artefacts and therefore
interference in the other terminal lines.
→ The electrode cables should not touch the patient, the treadmill or
other objects during ECG recording.
→ Fix any overlong trailing leads to the carrying case. No tension must
be exerted on the electrodes. Make sure that no lead passes over
the contact of an electrode.
→ Tip: To fix electrodes and cables to the patient’s body and therefore
reduce interference in the ECG signal, the patient should wear a
stretchable ECG mesh shirt.
Fig.
7: Normal electrode application
Fig.
8: Artefact reduced electrode application
TIP:
Artefact reduced electrode application results in smaller amplitudes
in the extremity derivations.
R
L
C1
C2
C3
C4
C5
C6
F
N
R
L
C1
C2
C3
C4
C5
C6
F
N