Physician Preferences for Botulinum Toxin Injections in Anticoagulated Patients with Spasticity.

To understand physician preferences and bleeding complication rates of intramuscular botulinum neurotoxin type A injections for spasticity management in anticoagulated patients, questionnaires were mailed to 138 physicians across Canada. The international normalized ratio comfort range for injections was <2.0 in 10%, 2.0 to 2.5 in 35%, 2.6 to 3.0 in 25%, and 3.1 to 3.5 in 20% of physicians. Only 23% injected outside their comfort value and 57% did not; 72% did not normalize the international normalized ratio value before injections. Only one injector reported the development of compartment syndrome. As expected, high variability exists in physician preferences in botulinum neurotoxin type A injection in anticoagulated patients.