Received Apr 11, 2017 Revised May 7, 2017 Accepted Jun 3, 2017 General anesthesia plays a crucial role in many surgical procedures, and it therefore has an enormous impact on human health. There are no precise measures for maintaining the correct dose of anesthetic, and there is currently no fully reliable instrument to monitor depth of anesthesia. In this paper, a novel approach has been propo...

A noteworthy endpoint of general anesthesia is the loss of memory. However, a ghastly difficulty of narcosis is the anesthesia awareness, a rare condition that happens when surgical patients can review their surroundings or an occasion identified with their surgery while they are under general anesthesia. Amid general anesthesia, the amnesia is, for the most part, accomplished with general anes...

The decreased responsiveness to stimulation defines the depth of anaesthesia which is a balance between effects of anaesthetic drugs and surgical stimulations. Awareness is a rare occurrence with an incidence of 0,1-0,2 %1, defined as postoperative recall of events occurring during general anaesthesia. This memory can be traumatic and may result in developing a chronic posttraumatic stress diso...

Anesthesia drugs have impact on multiple outcomes of an anesthesia patient. Most typical outcomes include anesthesia depth, blood pressures, heart rates, etc. Traditional diagnosis and control in anesthesia focus on a one-drug-one-outcome scenario. This paper studies the problem of real-time modeling for monitoring, diagnosing, and predicting multiple outcomes of anesthesia patients. It is show...

General anesthesia aims to eliminate patients' awareness of excruciating pain during surgery. Nevertheless, rare occurrences of patient awareness continue because the problem is not yet completely preventable. One study puts the incidence of awareness at 0.18% for patients receiving muscle relaxants and at 0.10% for patients not given relaxant drugs. Awareness experiences frighten patients and ...

abstract objective: to investigate the anesthesia-postoperative awakening time (at) of hepatitis- related cirrhosis patients and their relations to grading scores, portal venous pressure (pvp), prealbumin (pa), and age, to predict postoperative at and provide a basis for adjustment of anesthetic doses during operation. methods: atotal of 71 patients with hepatic cirrhosis and hypersplenism at a...

HIGHLIGHTS ► Twelve entropy indices were systematically compared in monitoring depth of anesthesia and detecting burst suppression.► Renyi permutation entropy performed best in tracking EEG changes associated with different anesthesia states.► Approximate Entropy and Sample Entropy performed best in detecting burst suppression. OBJECTIVE Entropy algorithms have been widely used in analyzing E...

TO THE EDITOR: In a recent issue of the American Journal of Physiology-Heart and Circulatory Physiology, we have read with much interest the article by Pachon and coworkers (4), where the authors report that a high dose of ketamine alone demonstrated the least deviations from the conscious state in echocardiographic determination of left ventricular (LV) function, while at the same time providi...