Does general anesthesia cause delirium or incoherent speech?
In general, whether a patient speaks incoherently under general anesthesia depends on the stage of anesthesia. Patients may speak incoherently during the recovery phase, but typically do not do so during deep anesthesia. If any discomfort occurs, it is recommended to seek medical attention promptly. The detailed explanation is as follows:
The medications used in general anesthesia can affect brain function, including the language centers. During the emergence phase—when anesthetic drugs are gradually metabolized and their effects wear off, and the patient begins to regain consciousness—some abnormal behaviors may occur, such as disorganized speech or speaking incoherently. This condition is usually temporary and resolves completely as the anesthetic agents are eliminated from the body and the patient regains normal cognitive function.
When a patient is in a state of deep anesthesia, they generally do not speak incoherently. General anesthesia works by administering drugs that suppress the central nervous system, resulting in profound inhibition of brain activity. In this state, the patient loses consciousness and lacks both the ability to speak and think. As such, no conscious verbal communication—including speaking incoherently—is possible.
If a patient experiences any unusual symptoms after general anesthesia, they should promptly inform their doctor to ensure timely evaluation and management.