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It has been reported that volatile anesthetics preconditioning mediates protection of organ via microRNA. We want to study on the effects of isoflurane preconditioning on expression of microRNA and mRNA in the specimens of internal mammary artery and ascending aorta.
1. Sixty patients scheduled for off-pump coronary artery bypass surgery were randomly assigned to isoflurane wash-in/wash-out group(S-I group, n=30)or propofol intravenous anesthesia group(P group, n=30).
2. Anesthesia and monitoring method All patients were monitored according to the American Society of Anesthesia guidelines and received standard general induction of anesthesia.
3. SI group:10min after intubation,begin to isoflurane wash-in/wash-out operation:isoflurane administration was interrupted for at least 10 min,by washout with a high fresh gas flow(10 l/min)to achieve a MAC value below 0.2. Following the interruption,sevoflurane was again washed in with a high fresh gas flow(6 l/min)to achieve 1 MAC end-tidal concentration as soon as possible,and repeated twice periods of 10 minutes.Discontinuation of the halogenated agent for at least 15 minutes during the last wash out time.
4. P Group:propofol infusion 3-5μg/kg/h.
5. When isoflurane inhaled anesthetic,propofol are stopped infusion.If during this interruption the BIS value increased to>50,0.5 mg/kg propofol was administered repeatedly in boluses until the BIS value have returned to<50.
6.1h after isoflurane preconditioning,specimens of internal mammary artery(surplus arterial tissue is obtained from the repair internal mammary artery)and ascending aorta(the stump after ascending aortic punch)will be saved, and before isoflurane preconditioning,1h,3h,5h after isoflurane preconditioning, central venous blood samples will also be drawn.
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Outcomes Assessor), Primary Purpose: Treatment
Coronary Artery Bypass Graft Triple Vessel
volatile anesthetics(isoflurane), propofol intravenous anesthesia
Beijing Anzhen Hospital
Beijing Anzhen Hospital
Published on BioPortfolio: 2016-02-10T20:08:24-0500
Despite theoretical benefits of intravenous agents, volatile agents remain popular. In a study comparing desflurane, isoflurane, and sevoflurane in a porcine model of intracranial hyperten...
The aim of this study is to assess the profile of cytokines IL-1beta, IL-6, IL-8, IL-10, IL-12 and TNF-alpha under inhalation anesthesia with isoflurane and intravenous anesthesia with pr...
The purpose of this study is to prove if anesthesia maintained with the inhaled volatile anesthetic desflurane is superior to the intravenously applied propofol anesthesia in off-pump coro...
The purpose of this study is to compare post-operative pain after anesthesia with either isoflurane or propofol. Each group will be further randomized to recieve intranasal nicotine or pl...
All patients undergoing cardiac surgery require intraoperative anesthesia and short-term postoperative sedation with anesthetic agents after the procedure when patient is in the intensive ...
Clinical trials have shown conflicting results regarding the use of volatile anesthesia before or after the ischemic insult in cardiac surgical patients and effect on myocardial injury. This may be at...
Hyperglycemia causes perioperative complications and many anesthetics impair glucose metabolism and cause hyperglycemia. We evaluated the effects of propofol on blood glucose metabolism and insulin se...
The aims of this study were to determine if a propofol constant rate infusion (CRI) in Speke's gazelle, Gazella spekei, would serve as an effective alternative maintenance anesthetic, result in shorte...
WHAT THIS ARTICLE TELLS US THAT IS NEW: BACKGROUND:: Clusters of differentiation 39 and 73, enzymes expressed on the surface of regulatory T cells, promote cancer recurrence and metastasis by suppress...
Gases or volatile liquids that vary in the rate at which they induce anesthesia; potency; the degree of circulation, respiratory, or neuromuscular depression they produce; and analgesic effects. Inhalation anesthetics have advantages over intravenous agents in that the depth of anesthesia can be changed rapidly by altering the inhaled concentration. Because of their rapid elimination, any postoperative respiratory depression is of relatively short duration. (From AMA Drug Evaluations Annual, 1994, p173)
Direct myocardial revascularization in which the internal mammary artery is anastomosed to the right coronary artery, circumflex artery, or anterior descending coronary artery. The internal mammary artery is the most frequent choice, especially for a single graft, for coronary artery bypass surgery.
Surgical therapy of ischemic coronary artery disease achieved by grafting a section of saphenous vein, internal mammary artery, or other substitute between the aorta and the obstructed coronary artery distal to the obstructive lesion.
Agents that induce various degrees of analgesia; depression of consciousness, circulation, and respiration; relaxation of skeletal muscle; reduction of reflex activity; and amnesia. There are two types of general anesthetics, inhalation and intravenous. With either type, the arterial concentration of drug required to induce anesthesia varies with the condition of the patient, the desired depth of anesthesia, and the concomitant use of other drugs. (From AMA Drug Evaluations Annual, 1994, p.173)
An intravenous anesthetic agent which has the advantage of a very rapid onset after infusion or bolus injection plus a very short recovery period of a couple of minutes. (From Smith and Reynard, Textbook of Pharmacology, 1992, 1st ed, p206). Propofol has been used as ANTICONVULSANTS and ANTIEMETICS.
A microRNA (abbreviated miRNA) is a small non-coding RNA molecule (containing about 22 nucleotides) found in plants, animals, and some viruses. Key findings: miRNA is involved in the normal functioning of eukaryotic cells, so has dysregulation...
An anesthesiologist (US English) or anaesthetist (British English) is a physician trained in anesthesia and perioperative medicine. Anesthesiologists are physicians who provide medical care to patients in a wide variety of (usually acute) situations. ...