Local Anesthetic Toxicity

Local anesthetic toxicity occurs when these medicines, used to numb a specific area, accidentally enter the bloodstream in high amounts or are absorbed too quickly. This can affect the nervous system and the heart, leading to symptoms like dizziness, ringing in the ears, confusion, seizures, irregular heartbeat, or even cardiac arrest. Factors such as overdose, too large an area being numbed, or impaired clearance from the body increase risk. Proper dosing and technique are essential to prevent toxicity, which requires immediate medical attention if symptoms develop.