The need for closed-loop therapy.

摘要: The need for closed-loop control of blood pressure in acute hypertension after cardiac surgery was evaluated by estimating the amount nurse-time required to adjust infusion rate sodium nitroprusside. evaluation consisted a nationwide telephone survey head nurses postsurgical ICUs at 9 institutions performing surgery. By nurse estimate, average time spent adjusting nitroprusside 26% patients were being infused. When calculated from hierarchical list questions, adjustment 16%. Assuming that controller would be accepted these ICUs, they used 40% and patient are on 1-to-1 basis. It concluded technically acceptable design exists clinical use, present there is such controller, staff.