Subjects, (male and/or female), who elect to undergo the SGB procedure.
DEERS Eligible
You may not be if
Have an acute, unstable medical condition i.e., temperature, blood pressure, heart rate outside normal limits; electrolyte abnormalities; mental conditions which preclude informed consent/unable to make decisions independently; on antibiotic therapy; uncontrolled seizures; nausea/vomiting; night sweats; blood dyscrasias.
Have acute infections or cardiac compromise or irregularities of heart rate or rhythm.
Pathologic bradycardia
Have local infections of the anterior neck region
Have severe pulmonary disease, (in severe pulmonary disease, the patient may experience severe shortness of breath on minimal exertion \[even at rest\], require supplemental oxygen, is progressively disabled and may have a constant cough and associated wheeze).
Are anticoagulated
Have a blood clotting disorder
Have an American Society of Anesthesiologists (ASA) physical status score of 3 or higher (severe systemic disease, not incapacitating)
Have allergic reactions to local anesthetics and / or contrast dyes,
Have conditions or disorders that affect cognitive functioning, including stroke, past or present diagnosis of psychosis,
Have conditions that invalidate testing procedures (e.g., English not first language, inability to write, speak, read, etc.)
