Local Anesthetic Recommendations for Cardiac Patients

Primary Recommendation: Lidocaine with Epinephrine

The American Academy of Dermatology recommends lidocaine with epinephrine for patients with stable cardiac disease, with Level B evidence supporting its safety profile 1
The addition of epinephrine to lidocaine provides superior hemostasis, prolonged anesthesia, and reduced systemic toxicity, with a recommended concentration of 1:100,000 or 1:200,000 1, 2
The maximum safe dosing is 7.0 mg/kg of lidocaine with epinephrine, providing a substantial safety margin for most procedures 2, 3

Always aspirate before injection and inject slowly in incremental doses while continuously monitoring for early signs of toxicity 2
If uncertain about a patient's cardiac stability, consult with their cardiologist before proceeding, particularly for patients with unstable angina, recent myocardial infarction, or severe heart failure 1, 3
Buffer the lidocaine-epinephrine solution with sodium bicarbonate to reduce injection pain, a Level A recommendation 1, 2

Bupivacaine is the local anesthetic most frequently implicated in cardiovascular collapse and cardiac arrest, making it a poor choice for cardiac patients despite its longer duration 4, 5
Bupivacaine causes profound inhibition of cardiac voltage-gated sodium channels, producing more severe cardiotoxicity than other local anesthetics 5

Have 20% intravenous lipid emulsion immediately available as the primary antidote for local anesthetic systemic toxicity 4, 5
In cardiac arrest from local anesthetic toxicity, lipid emulsion is superior to standard vasopressor therapy for achieving return of spontaneous circulation 5

Do not withhold epinephrine based on outdated dogma about "end arteries", as extensive research has thoroughly refuted concerns about necrosis in digits, ears, nose, hands, and feet 2
Avoid using lidocaine with epinephrine within 4 hours of other local anesthetic interventions to prevent cumulative toxicity 2
Do not exceed maximum dosing limits even in small procedures, always calculate the total dose before injection based on patient weight 5, 2
Regional anesthetic techniques are contraindicated in cardiac patients on antiplatelet therapy or anticoagulation due to neuraxial hematoma risk 6

Defer elective procedures if systolic BP ≥180 mmHg or diastolic BP ≥110 mmHg until hypertension is optimized, as recommended by the American Heart Association 7
For urgent procedures in uncontrolled hypertension, have intravenous antihypertensive agents immediately available, such as nicardipine, labetalol, or esmolol, as suggested by the American Heart Association 7

Have 20% intravenous lipid emulsion (Intralipid) immediately available as the primary antidote for local anesthetic systemic toxicity, according to the American Society of Anesthesiologists 8
For severe hypertension from epinephrine, have alpha-blockers (phentolamine) available, NOT beta-blockers alone, as recommended by the American Society of Anesthesiologists 8
If severe hypertension develops (>220/120 mmHg), avoid isolated beta-blockade which can precipitate pulmonary edema and cardiac arrest, and use alpha-blockade first or combined alpha-beta blockade (labetalol) instead, as suggested by the American Society of Anesthesiologists 8 and the American Heart Association 7