Neurologic complications of cardiac surgery: current concepts and recent advances

Area of Science:

• Neurology
• Cardiology
• Neurosurgery

Background:

• Neurologic complications increase morbidity and mortality after cardiac surgery.
• Stroke incidence is 2-4%, higher in patients with prior stroke history.
• Off-pump techniques and combined carotid endarterectomy/coronary artery bypass surgery risks are debated.

Purpose of the Study:

• To review neurologic complications following cardiac surgery.
• To discuss the efficacy and safety of various surgical techniques and emerging treatments.
• To explore the causes and management of postoperative stroke, cognitive deficits, and seizures.

Main Methods:

• Literature review of neurologic complications in cardiac surgery patients.
• Analysis of stroke incidence, risk factors, and treatment options.
• Discussion of neurocognitive dysfunction and seizure etiologies and management.

Main Results:

• Mechanical clot retrievers show promise for treating large middle cerebral artery strokes.
• Cognitive deficits may not be solely due to bypass and often resolve within 1-3 months.
• Postoperative seizures stem from ischemia, emboli, or metabolic issues, with new anticonvulsants offering management.

Conclusions:

• Neurologic complications are significant concerns after cardiac surgery.
• Emerging technologies and approaches may mitigate risks and improve patient outcomes.
• Further research is needed to clarify long-term risks and optimize neuroprotection strategies.