Evaluation of cardiac function during neurosurgical procedure in the sitting position.
D000328:Adult; D000368:Aged; D000768:Anesthesia, General; D002302:Cardiac Output; D004562:Electrocardiography; D004617:Embolism / Q000175:diagnosis; D005069:Evaluation Studies as Topic; D005260:Female; D006321:Heart / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009493:Neurosurgery; D011187:Posture; D014463:Ultrasonography