St.Jude Medical PressureWire Aeris Mode D'emploi page 8

6. Carefully remove PressureWire from the packaging coil.
7. The shapeable guidewire tip may be carefully shaped using standard tip shaping practices.
CAUTION: Do not use a shaping tool with a sharp edge.
Diagnostic procedure
8. Introduce PressureWire into the patient's blood vessels according to standard clinical
practice.
CAUTION: Avoid turning off the transmitter during the procedure since PressureWire is au-
tomatically zeroed when the transmitter is turned on and PressureWire requires zeroing
outside of the body.
9. Use the torque device to slowly steer PressureWire. Position PressureWire sensor element
just outside the guiding catheter opening.
10. To ensure accurate pressure reading: Place the aortic pressure transducer at the same
height as the patient's heart. Pull back the insertion tool and tighten the hemostatic valve.
Make sure that there is no remaining contrast fluid in the catheter.
11. Verify that the pressures from the guiding catheter and PressureWire are equal.
12. If the pressures differ: Equalize the pressure signals according to manufacturer's
instructions.
NOTE: If pressure difference before equalization is greater than 20 mmHg or according to
equipment specification whichever is lowest it is recommended to remove the wire, rezero
and repeat from step 8.
13. Perform measurements. Use the torque device to slowly steer PressureWire to the de-
sired position and perform pressure measurement according to standard clinical
procedures.
NOTE: If it is difficult to reach the desired position, PressureWire may be disconnected for
better handling.
14. If applicable, considering the results from the measurements, proceed with interventional
procedures.
Interventional procedure
15. Disconnect the transmitter.
16. Remove the torque device by loosening the screw and gently withdraw it.
17. Carefully advance the interventional device over PressureWire guidewire and proceed ac-
cording to manufacturer's instructions.
18. Put the torque device back on a suitable position on the guidewire.
19. Carefully wipe and dry the guidewire.
20. Take care to gently and fully insert the guidewire into the transmitter and secure the cap.
21. Treat the lesion according to manufacturer's instruction.
How to pause procedure
Perform the following procedure if PressureWire is removed from the patient's blood vessels dur-
ing any diagnostic or interventional procedure, in order to be reintroduced:
1. Carefully withdraw PressureWire. Make sure that the distal flexible part of the guidewire is
kept wet.
2. Carefully wipe and dry the guidewire before it is reconnected to the transmitter.
3. Repeat the procedures from step 8 and forward.
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