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首页> 外文期刊>International journal of colorectal disease. >A novel magnetic device to prevent fecal incontinence (preliminary study).
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A novel magnetic device to prevent fecal incontinence (preliminary study).

机译：一种防止粪便失禁的新型磁性装置（初步研究）。

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BACKGROUND AND AIMS: In this research we propose an original magnetic device to strengthen the hypo-atonic anal sphincter and prevent fecal incontinence. METHODS: The device consists in a couple of small magnetic plaques to be surgically inserted in the wall of the anal canal between the external and internal anal sphincters with the opposite polarities face to face, so that, attracting themselves, close the anal lumen. Three couples of magnets made of materials of different magnetic force (neodymium>ferrite>plastoferrite) were evaluated in each of three swine anatomical preparations by measuring the endoanal pressure with a manometric catheter, both before and after magnet implantation. The mean pressures obtained before and after magnet insertion were statistically compared with Student t test. RESULTS: The endoanal pressure after the insertion of neodymium magnets was 79.7+/-13.1 (mean+/-SD), after ferrite magnets was 42.1+/-5.6 mmHg and after plastoferrite magnets was 21.6+/-4.6 mmHg, all of them significantly higher than the pressure recorded in basal conditions (1.72+/-0.71 mmHg). CONCLUSION: This research demonstrated that the implantation of a couple of magnets in the wall of the anal canal is able to create a high pressure zone of a value sufficient to prevent fecal incontinence and that the strength of this "dynamic closure" can be modulated by using magnets of various attraction force, so allowing a "tailored correction" of the anal sphincter hypotension.
机译：背景与目的：在这项研究中，我们提出了一种原始的磁性装置，以增强低张力肛门括约肌并防止大便失禁。方法：该装置由一对小的磁性斑块组成，这些小块斑块通过外科手术插入到肛门内外括约肌和内肛门括约肌之间的肛门壁中，并面对着相反的极性，从而吸引自己，闭合肛门内腔。在磁体植入之前和之后，通过使用测压导管测量鼻内压力，在三种猪的解剖制剂中分别评估了三对由不同磁力的材料制成的磁体（钕>铁氧体>质铁氧体）。将磁体插入之前和之后获得的平均压力与Student t检验进行统计学比较。结果：插入钕磁铁后的内膜压力为79.7 +/- 13.1（平均值+/- SD），在铁氧体磁铁后为42.1 +/- 5.6 mmHg，塑铁氧体磁铁后为21.6 +/- 4.6 mmHg，均显着高于基础条件下记录的压力（1.72 +/- 0.71 mmHg）。结论：这项研究表明，在肛管壁上植入一对磁铁能够产生足以防止大便失禁的高压区，并且这种“动态闭合”的强度可以通过调节使用各种吸引力的磁铁，因此可以“量身定做”肛门括约肌低血压。

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