(可修改)腰大池腹腔分流.ppt

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Risk factor for intraabdominal hypertension 腹内高血压的风险因素 Reintam Blaser A et.al. Acta Anaesthesiol Scand. 2011 55(5):607-14 Risk factors for intra-abdominal hypertension in mechanically ventilated patients. ︵。︵ Quick Refererence Table for suitable shunt pressure Concept: obesity = IAP suitable valve pressure   理念: 肥胖=IAP 适合的阀门压力 Hydrostatic pressure Valve Pressure = CSF flow volume Intra-abdominal Pressure (IAP)腹内压 Intracranial Pressure (ICP) Ref) Miyake H et.al. Neurol Med Chir (Tokyo) 48, 427~432, 2008 Desirable condition underdrainage overdrainage ︵。︵ For Avoid unintentional valve pressure change 防止阀门设定压力意外改变 Basic concept of us 基本的治疗理念 Loss of adjustability after MRI examination. MRI检查后丧失调节能力 Above all, unintentional changes in pressure setting.设定好的阀门压力发生意外改变 ︵。︵ Akbar M. Loss of Adjustability of Codman-Medos Hydrocephalus Valves after Exposure to 3.0T MRI. New England. J. Med. 2005; 353 : 1413 -1414. ??6 out of 12 (50%) tested Codman-Medos valves showed permanent failure of adjustability after exposure to a 3.0 T MRI… In contrast, all tested Sophy-SU8 devices could still be re-ajusted after all procedures??. 12枚Codman-Medos阀门中6枚在接触3.0T MRI后,被消磁,永久丧失调节能力,而索菲SU8阀门在相同情况下,不受影响。 Loss of adjustability after MRI examination MRI检查后丧失调节能力 ︵。︵ Nomura S. Effect of cell phone magnetic fields on adjustable cerebrospinal fluid shunt valves. Surgical Neurology, 63(2005), 467-468. 可以改变不同阀门压力的最小磁通密度 Utsuki S. Alteration of the Pressure Setting of a Codman-Hakim Programmable valve by a Television. Neurol. Med. Chir. (Tokyo) 46, 405-407, 2006.. ??…we should recognize that there are many sources of weak magnetic fields that may influence a programmable valve in everyday life??. 日常生活中有许多的若磁场,可能造成可调压阀门压力发生意外改变 Daily life magnetic fields (1) 日常生活中的磁场(1) ︵。︵ Zuzak T.J. Magnetic toys: forbidden for pediatric patients with certain programmable valves.? Child’s Nervous Syst. 25: 161-164 (2009).

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