Navigation Links
Recovery from propofol anesthesia may be sped by use of common stimulant
Date:4/5/2012

The ability of the commonly used stimulant methylphenidate (Ritalin) to speed recovery from general anesthesia appears to apply both to the inhaled gas isoflurane, as previously reported, and to the intravenous drug propofol. Members of the same Massachusetts General Hospital (MGH) research team that reported the isoflurane study are publishing similar results for propofol in the May issue of Anesthesiology, and their paper has been issued online.

"Propofol is the most widely used intravenous general anesthetic, and there is currently no way to reverse its effects," says Ken Solt, MD, of the MGH Department of Anesthesia, Critical Care and Pain Medicine, the paper's corresponding author. "By finding that methylphenidate can reverse general anesthesia with propofol as well as with isoflurane, we show that it may be broadly applicable for waking patients up from different general anesthetic drugs."

The MGH team's previous study in the October 2011 issue of Anesthesiology showed that methylphenidate known to affect arousal pathways in the brain and commonly used to treat attention-deficit hyperactivity disorder significantly decreased the amount of time it took for rats to recover from isoflurane anesthesia. The current study ran very similar experiments in which propofol, which has a different mechanism of action than isoflurane, was the anesthetic agent.

In the first experiments, animals that had lost consciousness after a single dose of propofol were given intravenous methylphenidate or saline, and those receiving methylphenidate recovered almost five minutes faster than those receiving saline. Administration of methylphenidate also induced signs of arousal movement or standing up in rats receiving a constant intravenous dose of propofol, while animals administered saline remained motionless. EEG readings of the brains of animals during constant infusion of a higher propofol dose showed that methylphenidate caused brain activity to shift back toward the awake state. The change persisted for up to 10 minutes, during which the animals showed signs of arousal like opening their eyes and kicking, although they did not stand up.

"Propofol can be a very dangerous drug because it can cause patients to stop breathing and their blood pressure to drop," Solt explains. "It is often used for sedation during procedures such as colonoscopies, and if patients get oversedated, methylphenidate may be useful in getting them to wake up and resume breathing and in restoring their blood pressure. In the operating room, where propofol can be administered for several hours, patients may take as long as an hour to recover. The ability to use methylphenidate to induce recovery could make general anesthesia safer and more efficient, and we're hoping to conduct a clinical trial in patients in the near future."


'/>"/>

Contact: Sue McGreevey
smcgreevey@partners.org
617-724-2764
Massachusetts General Hospital
Source:Eurekalert

Related medicine news :

1. Recovery Act's One Year Anniversary -- 2009 Was Just the Opening Act
2. Federal Recovery Funds Allow Eries Shriners Hospital to Reduce Energy Costs, Invest Savings in Patient Care
3. U.S. Senate Urgently Needs to Extend Medicaid Match in Economic Recovery Legislation
4. Alliance, Inc. Receives Centers of Excellence in Recovery Grant
5. De-Duplication, Compression and No Double Backups Required: AppAssure Releases the Fastest and Most Scalable Backup & Recovery Solution for Microsoft Hyper-V
6. San Francisco Plastic Surgeon Releases Plastic Surgery Patient Recovery Blog
7. Passages to Recovery Outdoor Addiction Treatment Program Achieves Joint Commission Accreditation
8. Economic Recovery and New Healthcare Legislation: The Stars Are Aligned for Increased Adoption of HR Management Systems (HRMS)
9. New Laser Treatment Offers Revolutionary Response to Aesthetic Procedure Candidates' Number One Concern: Recovery Time
10. Arizona Surgeon Performs Hip Replacement Surgery with Fast Recovery, Less Pain
11. Addiction and Recovery: Life Force Dallas
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/24/2016)... (PRWEB) , ... May 24, 2016 , ... ... expansion of its services to provide one resource, from start to finish, for ... preparation, Life Safety Statement of Condition surveys requested by the Joint Commission, and ...
(Date:5/24/2016)... ... 24, 2016 , ... i2i, a national leader in population ... “Transforming Outcomes” User Conference in Las Vegas on May 19-20, 2016. The ... the market standard for meaningful population health management. The company recently closed ...
(Date:5/24/2016)... ... May 24, 2016 , ... ... is pleased to welcome new Partner Firm Austin & Co., Inc. Headquartered ... to insurance, employee benefits, HR consulting, benefits technology, and beyond. As an ...
(Date:5/24/2016)... ... May 24, 2016 , ... Educational opportunities, and therefore ... more advantaged communities providing richer opportunities. Recognizing the key role of housing in ... policies; (b) school choice policies; (c) school desegregation policies; (d) wealth-focused policies; and ...
(Date:5/24/2016)... (PRWEB) , ... May 24, 2016 , ... How to ... · Raleigh, NC, http://www.fdanews.com/humanerrordrugdevice , Human error is known to be the ... that human error will ever be totally eliminated, many human performance problems can be ...
Breaking Medicine News(10 mins):
(Date:5/23/2016)... SAN FRANCISCO , May 23, 2016 ... expected to reach USD 5.0 billion by 2022, according ... The increasing generation of medical waste coupled with the ... healthcare industry is expected to drive the demand for ... with these devices as compared to that of the ...
(Date:5/20/2016)... 2016 The Biotech arena remains ... the industry is not far from recovering. There are ... the following four equities: Anacor Pharmaceuticals Inc. (NASDAQ: ... ), Aralez Pharmaceuticals Inc. (NASDAQ: ARLZ ), ... Sign up for your free trading alerts on these ...
(Date:5/19/2016)... , May 19, 2016  According to the ... the world lacks basic diagnostic imaging. Whereas mammography ... the United States , many places ... technology. In fact, the WHO reports that those ... avoidable or treatable death, simply due to the ...
Breaking Medicine Technology: