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深部脑刺激技术可以治疗抗药性抑郁症
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According to the latest data in a clinical study supported by St. Jude Medical, Inc. (NYSE:STJ), deep brain stimulation (DBS) therapy for depression may provide sustainable improvement in depression symptoms among patients with major depressive disorder. Study results will be presented today at the American Psychiatric Association (APA) meeting in San Francisco. This study profiles 21 patients with DBS therapy in the area of the brain known as Brodmann Area 25, most of whom have completed one year of post-surgery evaluation. At six months, 62 percent of the patients experienced at least a 40-percent decrease in symptoms of depression as measured by a standardized test called the Hamilton Rating Scale for Depression. Of these patients, 92 percent maintained this improvement at their last follow-up visit (typically at one year). Additionally, 71 percent of all patients in the study exhibited at least a 40-percent decrease in symptoms of depression as measured by the Hamilton scale. “Typically these patients do not maintain responses to traditional approaches such as medications and electroconvulsive therapy,” said Peter Giacobbe, M.D., psychiatrist with the University Health Network in Toronto and presenter of the study results. “We are encouraged that this data indicates DBS therapy may provide sustainable improvement in the quality of life for these patients.” Ongoing at three leading Canadian academic medical centers, the study utilizes the St. Jude Medical Libra® Deep Brain Stimulation System to deliver stimulation to an area of the brain known as Brodmann Area 25, which appears to become overactive in severely depressed people. The pilot study builds upon the research of Helen Mayberg, M.D., and Andres Lozano, M.D. Patients in the study had suffered from depression for an average of 20 years, had tried in excess of 12 depression medications and were considered disabled or unable to work at the time of enrollment. At the 12-month evaluation point, eight of the study patients had returned to daily life activities such as school, work and sustaining relationships with family and friends, and two patients were considered to be in remission. “These results are important as they contribute to the growing body of research about the potential benefits deep brain stimulation may provide this patient population,” said Chris Chavez, president of the St. Jude Medical Neuromodulation Division. “We are committed to expanding our research into the field of depression and to completing the BROADEN™ study to determine whether stimulation of Brodmann Area 25 is clinically significant in treating severely depressed patients who have exhausted other treatment options." The early results of the Brodmann Area 25 pilot study led to the establishment of the BROADEN (BROdmann Area 25 DEep brain Neuromodulation) study, a larger controlled, blinded pivotal study. The BROADEN study is being conducted under a U.S. Food and Drug Administration (FDA) Investigational Device Exemption (IDE). For more information about this clinical study, call toll-free 866-787-4332 or visit www.BROADENstudy.com. An estimated 21 million adult Americans suffer from depression according to the National Mental Health Advisory Council. Of these, approximately 4 million live with severe depression that does not respond to medications, psychotherapy and, in certain cases, electroconvulsive therapy. The Libra Deep Brain Stimulation System is currently approved in Europe for the symptomatic treatment of Parkinson’s disease. St. Jude Medical has clinical studies underway in the U.S. for Parkinson’s disease and essential tremor. More than 45,000 patients in 35 countries have been implanted with St. Jude Medical neurostimulation systems. For more information about St. Jude Medical pain therapies, visit www.PowerOverYourPain.com. About St. Jude Medical St. Jude Medical develops medical technology and services that focus on putting more control into the hands of those who treat cardiac, neurological and chronic pain patients worldwide. The company is dedicated to advancing the practice of medicine by reducing risk wherever possible and contributing to successful outcomes for every patient. Headquartered in St. Paul, Minn., St. Jude Medical employs approximately 14,000 people worldwide and has four major focus areas that include: cardiac rhythm management, atrial fibrillation, cardiovascular and neuromodulation. For more information, please visit www.sjm.com. Forward-Looking Statements This news release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that involve risks and uncertainties. Such forward-looking statements include the expectations, plans and prospects for the Company, including potential clinical successes, anticipated regulatory approvals and future product launches, and projected revenues, margins, earnings and market shares. The statements made by the Company are based upon management’s current expectations and are subject to certain risks and uncertainties that could cause actual results to differ materially from those described in the forward-looking statements. These risks and uncertainties include market conditions and other factors beyond the Company’s control and the risk factors and other cautionary statements described in the Company’s filings with the SEC, including those described in the Risk Factors and Cautionary Statements sections of the Company’s Quarterly Report on Form 10-Q for the fiscal quarter ended April 4, 2009. The Company does not intend to update these statements and undertakes no duty to any person to provide any such update under any circumstance. Photos/Multimedia Gallery Available: http://www.businesswire.com/cgi- ... 5967568&lang=en Source: St. Jude Medical |
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