Which complication can arise from a maxillary nerve block?

In the context of a maxillary nerve block, the potential complications include aspects such as hematoma or inadvertent intravascular injection. This complication can occur due to the anatomical location of the maxillary nerve and the surrounding blood vessels. When performing a maxillary nerve block, there is a risk of accidentally injecting the anesthetic into a blood vessel, which can lead to systemic toxicity or other unwanted effects. Additionally, a hematoma can form if there is damage to a blood vessel during the insertion of the needle, leading to bleeding in the tissue that can cause swelling and discomfort.

Injury to the nerve itself, allergic reactions, or infections can occur as well, but they tend to be less common compared to the risk of hematoma or intravascular injection associated with the procedure. Thus, the emphasis on the hematoma or inadvertent intravascular injection accurately reflects a significant complication that practitioners need to be aware of when administering a maxillary nerve block. Understanding this complication aids clinicians in taking precautions to minimize the risks associated with the procedure.