Neonatal sevoflurane anesthesia can also affect rat medulla spinalis.

Area of Science:

• Neuroscience
• Anesthesiology
• Developmental Biology

Background:

• Neonatal anesthesia is associated with neuroapoptosis and cognitive deficits.
• The impact of anesthesia on the neonatal central nervous system, particularly the spinal cord, remains incompletely understood.

Purpose of the Study:

• To investigate the effects of sevoflurane anesthesia on the neonatal rat spinal cord.
• To determine if sevoflurane exposure impacts spinal cord motor function and cellular integrity.

Main Methods:

• 24 Wistar albino rat pups (postnatal day 7) were exposed to 2.5% sevoflurane in oxygen.
• Motor function was assessed using tail flick tests on postnatal days 8, 15, and 30.
• Spinal cords were collected for histopathological and apoptotic cell count analysis.

Main Results:

• While no significant difference in motor function (tail flick test) was observed between groups, histopathological evaluation revealed a significant increase in apoptotic cells in the chronic sevoflurane group (P < 0.001).

Conclusions:

• Neonatal sevoflurane exposure leads to increased apoptosis in the spinal cord.
• Despite increased apoptosis, sevoflurane anesthesia did not significantly affect spinal cord motor function in neonatal rats.
• Further studies are warranted to elucidate the underlying mechanisms of sevoflurane-induced spinal cord apoptosis.