# Modulatory mechanism of the paraventricular thalamus (PVT) under general anesthesia

## TL;DR

This paper reviews how the paraventricular thalamus (PVT) influences the effects of general anesthesia, linking it to sleep-wakefulness mechanisms.

## Contribution

The paper provides a comprehensive summary of PVT's role in general anesthesia, highlighting its modulatory mechanism.

## Key findings

- The PVT is linked to the actions of both volatile and intravenous anesthetics.
- There is divergence in PVT's neuronal types and circuits during different anesthesia periods.
- Understanding PVT's role improves insight into general anesthesia mechanisms.

## Abstract

The paraventricular thalamus (PVT) is a critical brain region involved in controlling sleep-wakefulness. Many neural nuclei and circuits regulate consciousness under both sleep-wakefulness and general anesthesia, suggesting that a common neural mechanism contributes to these two conditions. Recently, accumulating evidence has revealed that the activities of the PVT are associated with the actions of both volatile and intravenous general anesthetics. However, there is divergence regarding neuronal types, circuits, or different anesthesia periods. Herein, we reviewed the current literature and summarized the role of PVT in general anesthesia, which provides a better understanding of the modulatory mechanism of PVT on the actions of general anesthetics.