Philips EPIQ 7 User Manual page 203

Patient Safety During TEE Studies
Problem
Improper
insertion or
withdrawal
Pressure
necrosis
Increased
transducer
temperature
Improper
patient position
Nonisolated
ESUs
Defibrillation
issues
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Effect on Patient Prevention
Esophageal cuts, To prevent improper insertion or
bleeding, ligament withdrawal when using a TEE transducer,
damage, perforations never use force when inserting, removing,
or manipulating the transducer. During
insertion, lock the medial/lateral controls.
During withdrawal, release both brakes to
place both steering knobs in the
freewheeling position.
Death of esophageal Keep deflection controls in freewheeling
lining tissue mode and unplug the transducer from the
system when not imaging. Minimize the
pressure applied to deflection area and
distal tip. Do not let the distal tip displace
a tissue area for more than 5 consecutive
minutes.
Esophageal burns Use the TEE preset that has been
established to minimize the effects of
temperature. For febrile patients, use the
Auto-Cool feature.
Transient unilateral vocal Never use the transducer during any
cord paralysis procedure requiring extreme neck flexion,
such as sitting craniotomies.
Electrical burns Only use isolated-output electrosurgical
units (ESUs). The ESU label or service guide
or your biomedical department should
identify whether or not the ESU is isolated.
Unplug transducer from the system when
you are not imaging.
Electrical burns Remove the transducer from the patient
before defibrillation.
Transesophageal Transducers
See
"TEE Study Guidelines"
on page 225
"TEE Study Guidelines"
on page 225
"Entering Patient
Temperature" on page
231
"TEE Study Guidelines"
on page 225
"Electrical Safety and
TEE Transducers" on
page 205
"Electrical Safety and
TEE Transducers" on
page 205
203