For achieving hemostasis at a surgical site, which infiltration procedure is used?

For achieving hemostasis at a surgical site, which infiltration procedure is used?

• A. 2% Lidocaine w/ 1:50,000 epinephrine injected directly into surgical site to stop bleeding
• B. 0.5% Mepivacaine without vasoconstrictor infiltrated widely around the area
• C. 4% Articaine with 1:100,000 epinephrine infiltrated into healthy tissue
• D. 3% Prilocaine with no vasoconstrictor infiltrated close to nerve trunk

Answer: (A)

Achieving hemostasis at the surgical site relies on vasoconstriction to reduce blood flow right where the tissue is being operated on. Injecting lidocaine with a vasoconstrictor directly into the surgical area provides targeted constriction of the local blood vessels, which both minimizes bleeding and helps keep the surgical field clear while the tissue is anesthetized for the procedure. The 1:50,000 epinephrine concentration is effective for producing this local vascular squeeze without excessive systemic effects when used appropriately, making it the most reliable way to control bleeding at the site. Infiltration with a local anesthetic not paired with a vasoconstrictor lacks this hemostatic benefit. Broad or distant infiltration around healthy tissue, or approaches aimed at a nerve trunk without vasoconstrictor effects, do not address the bleeding at the operative site as effectively and can leave more bleeding in the area or involve less optimal anesthesia strategies.

Achieving hemostasis at the surgical site relies on vasoconstriction to reduce blood flow right where the tissue is being operated on. Injecting lidocaine with a vasoconstrictor directly into the surgical area provides targeted constriction of the local blood vessels, which both minimizes bleeding and helps keep the surgical field clear while the tissue is anesthetized for the procedure. The 1:50,000 epinephrine concentration is effective for producing this local vascular squeeze without excessive systemic effects when used appropriately, making it the most reliable way to control bleeding at the site.

Infiltration with a local anesthetic not paired with a vasoconstrictor lacks this hemostatic benefit. Broad or distant infiltration around healthy tissue, or approaches aimed at a nerve trunk without vasoconstrictor effects, do not address the bleeding at the operative site as effectively and can leave more bleeding in the area or involve less optimal anesthesia strategies.