The risk for difficulty during and/or complications from LEMG is increased when the patient has one or more of the following:
- A bleeding disorder, or the use of drugs for "thinning the blood" or anticoagulant medications
- Altered anatomy due to prior surgery or infection
- Obesity and/or goiter, which may make identification of anatomical landmarks for the needle insertions difficult
- Airway problem; any difficulty breathing may worsen when vocal folds swell after the procedure
These conditions may preclude an LEMG procedure. When LEMG needs to be done, special care should be taken prior to and/or during the procedure to prevent these complications.
Patients should consult with their physicians about possible complications.