最新美國臨床試驗結果支持肖氏反射弧手術的有效和可行性
光明網:http://topics.gmw.cn/2010-10/15/content_1313583.htm
桂銘 刊發時間:2010-10-15
今日,一位網友指出不久前的一次美國醫學界的會議認可了肖氏反射弧手術的效果。該網友原文如下:
美國泌尿學會2010年會---關于脊柱裂患者施行腰椎至骶神經再接術兩年后的結果
2010年6月10日 美國加州舊金山
一項引人入勝的針對神經性大小便功能失常的治療工作正在進行。該治療是對借助腰椎-骶神經再通手術(LSNR,即肖氏反射弧手術)所建立起來的皮-脊髓- 膀胱神經反射弧進行操控來進行的。該治療首創于中國,曾經報告過高達87%的成功率。Ken Peters醫生及其同事報告了該手術在北美首次臨床試驗后兩年的隨訪結果。
9名脊髓裂患者接受了經椎板切除術施行的硬膜內LSNR(肖氏反射弧手術)手術。觀察了經皮刺激下的尿動力學、仔細的神經學檢查、密切的排便和膀胱功能監 測,以及不良副作用。在24個月時間里,9位患者中有7位建立了經(大腿)皮刺激作用下的神經反射弧。8位患者在經皮刺激下能夠排尿,其中5位患者能排出 超過50%的膀胱容積(尿量)。8位患者能安全地停止使用抗膽堿能藥物。50%的患者解決了逼尿肌失控的問題。還有,50%的患有膀胱順應性受損(小于 10毫升/厘米水壓)的患者,他們的膀胱順應性得到了顯著的改善。
患者的腎臟功能保持穩定。6位患者(66%)的生存質量(QOL)得到了改善。有一位患者的生存質量變壞,是因為出現腳下垂的現象。只有一名患者在基線水平自主排便,5/9的患者在24個月內實現自主排便。
研究者們總結說,7/9的患者通過神經反射弧手術獲得了成功的結果。這項治療技術是一種值得繼續研究下去的可行性選項。
英文原文:
AUA 2010 - Two-year outcomes with lumbar to sacral nerve re-routing in spina bifida - Session Highlights
Thursday, 10 June 2010
SAN FRANCISCO, CA USA (UroToday.com) - Interesting work has been ongoing in the treatment of bowel and bladder dysfunction via manipulation of the skin-spinal cord-bladder reflex arc through lumbosacral nerve re-routing (LSNR). Reported success rates have been as high as 87% in China, where the technique was pioneered. Dr. Ken Peters and colleagues reported on the first North American trial on LSNR with minimum 2-year follow- up.
Nine spina bifida patients underwent intradural LSNR via laminectomy. Follow-up included urodynamics with cutaneous dermatome stimulation, careful neurological examination, and close monitoring of bowel and bladder function and adverse events. By 24 months, the authors reported that 7/9 patients had LS nerve reflex with stimulation of the appropriate dermatome, 8/9 patients were voiding, and 5/9 were emptying >50% of their bladder volume. 8/9 were safely off of anticholinergic medications, and 50% of patients had resolution of involuntary detrusor contractions. Additionally, 50% of patients who had compromised bladder compliance as defined by 10mL/cm H20 showed marked improvement.
Renal function remained stable. Quality of life (QOL) was improved in 6/9 (66%). The one patient who described a worsening QOL was the one patient who experienced foot drop. While only one patient was continent of stool at baseline, 5/9 were continent by 24 months.
The investigators concluded that with 7/9 patients in their cohort experienced a successful outcome following LSNR, this technique remains a viable option for consideration and investigation in the future.
Presented by Kevin Feber, Damon Dyche, Benjamin Girdler, Cindy Turzewski, Gary Trock, William Natau, Evan Kass, and Kenneth Peters at the American Urological Association (AUA) Annual Meeting - May 29 - June 3, 2010 - Moscone Center, San Francisco, CA USA
Reported for UroToday by Kathleen C. Kobashi, MD, Head, Section of Urology and Renal Transplantation, Virginia Mason Medical Center, Seattle, WA, USA
另一位網友mendel在同一個帖子中予以補充說:
這里面有幾個關鍵問題:
1)肖氏反射弧存在嗎?
是存在的,看Peters的嚴格試驗,9個病人,7個成功建立反射弧,也就是說刺激大腿皮膚,確實導致膀胱壓力增加。另外兩個,沒有檢查到,并不表示沒有建立起反射弧,正如 Peters所言,可能是在檢測時沒有找到準確的刺激位置。
2)肖氏反射弧的建立,可以用來排尿嗎?
目前情況看,要復雜點。需要更大規模的,嚴格的臨床檢驗才可以得出結論。很明顯,在一部分病人中是很有效的,手術后成功建立的反射弧,確實可以用來通過刺激皮膚排尿。但是,有的病人還沒有,原因不清。
3)手術后,病人的需要嚴格的學習和訓練,使反射弧用來控制排尿嗎?
是的。
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