Magnetic compression gastrostomy in the rat

Uygun, İbrahim; Okur, Mehmet Hanifi; Cimen, Hasan; Keleş, Ayşenur; Yalçın, Özben; Öztürk, Hayrettin; Otcu, Selçuk

doi:10.1007/s00383-012-3053-2

Cited by 17 publications

(11 citation statements)

References 13 publications

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“…MCT has been applied in many scenarios, especially in the digestive system, such as esophageal magnamosis 9,10 , gastroesophageal magnamosis 11 , gastrojejunal magnamosis 12 , enteric magnamosis 13,14 , and choledochojejunostomy magnamosis 15,16 . In addition, MCT is also used for vascular anastomosis [17][18][19] , gastrostomy 20 , colostomy 21 , tracheoesophageal stula 22 , and treatment of rectovaginal stula 23 . In this study, we explored the feasibility of use of MCT to perform cystostomy in rabbits.…”

Section: Magnetic Compression Technique (Mct) Was Rst Applied To Perf...mentioning

confidence: 99%

A Novel Magnetic Compression Technique for Cystostomy in Rabbits

Zhang

Jian-qi

et al. 2022

Preprint

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Magnetic compression technique (MCT) is a popular new anastomosis method. In this paper, we aimed to explore the feasibility of use of MCT for performing cystotomy in rabbits. The parent magnets and daughter magnets for rabbit cystostomy were designed and manufactured according to the anatomical characteristics of rabbit lower urinary tract. Twelve female New Zealand rabbits were used as animal models. After anesthesia, a daughter magnet was inserted into the bladder through the urethra, and the parent magnet was placed on the body surface projection of the bladder over the abdominal wall. The two magnets automatically attract each other. Postoperatively, the state of magnets was monitored daily, and the time when the magnets fell off was recorded. Cystostomy with MCT was successfully performed in all twelve rabbits. The mean operation time was 4.46 ± 0.75 min. The magnets fell off from the abdominal wall after a mean duration of 10.08 ± 1.62 days, resulting in the formation of bladder fistula. Macroscopic and microscopic examination showed that the fistula was well formed and unobstructed. The junction between bladder and abdominal wall was tight and smooth. We provide preliminary experimental evidence of the safety and feasibility of cystostomy based on MCT.

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Section: Magnetic Compression Technique (Mct) Was Rst Applied To Perf...mentioning

confidence: 99%

A Novel Magnetic Compression Technique for Cystostomy in Rabbits

Zhang

Jian-qi

et al. 2022

Preprint

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“…使用领域磁体外环境 MCT 血管侧侧吻合 [36] 、胃肠吻合 [64] 、小肠吻合 [76] 、结肠吻合 [67] 、膀胱造瘘 [77] 、食管狭窄/ 闭锁再通 [8] 、胆道狭窄/闭锁再通 [20] 、胆肠吻合 [23] 、胰肠吻合、消化道造瘘 [78] 、消化道瘘口修补 [46] 、抗胃食管返流 [68] 、血管端端吻合 [39] 等…”

Section: Msunclassified

“…现代生物医学进展(已接收) 图 5 磁外科相关技术中钕铁硼磁体所用到的表面改性方法. (a) 聚碳酸酯 [76] ; (b) 聚酰胺 [73] ; (c) 氮化钛 [36] ; (d) 氮化钛+聚丙烯 [38] ; (e) 钛壳 [68] ; (f) 氮化钛和电工纯铁 [26] ; (g) 氮化钛 [45] ; (h) 铬 [78] ; (i) 镍 [72] Figure 5 The technology of NdFeB surface modification related to magnetic surgery. (a) Polycarbonate [76] ; (b) polyamide [73] ; (c) titanium nitride [36] ; (d) titanium nitride+polypropylene [38] ; (e) titanium [68] ; (f) titanium nitride and electrical pure iron [26] ; (g) titanium nitride [45] ; (h) chrome [79] ; (i) nickel [72] 改性处理方法多种多样, 但未见有客观、全面评价各设计.…”

Section: Msmentioning

confidence: 99%

Exploration and establishment of magnetic surgery

Yan

Peng²,

Shi³

et al. 2018

Chin. Sci. Bull.

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“…Currently, the magnetic com-pression technique (MCT) is applied therapeutically for repair and reconstruction in esophageal atresia[9], biliary stenosis[10-14], vascular anastomosis[15-22], and gastro-intestinal anastomosis[23-30]. Conversely, the MCT can be used for destructive purposes, and a recent report described magnetic compression gastrostomy in rats[31]. In the current study, we proposed a novel application for the MCT in establishing a canine model of TEF.…”

Section: Introductionmentioning

confidence: 99%

Novel magnetic compression technique for establishment of a canine model of tracheoesophageal fistula

Gao¹,

Wu²,

Lv³

et al. 2019

WJG

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BACKGROUND Clinically, tracheoesophageal fistula (TEF) is lack of effective surgical strategies. One reason is due to the lack of appropriate animal models of acquired TEF, which is usually complex and difficult. Recently, the magnetic compression technique has been applied for digestive tract anastomosis or vascular anastomosis in animals. In this study, an animal model of TEF in dogs was developed by using the magnetic compression technique, hoping to provide a new method for mimicking TEF. AIM To establish a TEF model in dogs by using the magnetic compression technique. METHODS Six male beagles were used as models with two Nd-Fe-B permanent magnets for TEF. The parent magnet and the daughter magnet were placed in the cervical esophagus and trachea, respectively. The anterior wall of the esophagus and the posterior wall of the trachea were compressed when the two magnets coupled. After 4-6 d, the necrotic tissue between the two magnets fell off and the parent and daughter magnets disengaged from the target location, leaving a fistula. Gastroscopy/bronchoscopy, upper gastrointestinal contrast study, and histological analysis were performed. RESULTS The establishment of the TEF model in all six beagles was successful. The average time of magnet placement was 4.33 ± 1.11 min (range, 3-7 min). Mean time for the magnets to disengage from the target location was 4.67 ± 0.75 d (range, 4-6 d). TEFs were observed by gastroscopy/bronchoscopy and esophageal angiography. The gross anatomical structure of the esophagus and the trachea was in good condition. There was no esophageal mucosa or pseudostratified ciliated columnar epithelium at the site of the fistula according to histological analysis. CONCLUSION It is simple, feasible, and minimally invasive to use the magnetic compression technique for the establishment of the TEF model in dogs.

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Magnetic compression gastrostomy in the rat

Abstract: Magnetic compression gastrostomy can be performed easily in rats, and may be developed in future as a simple alternative to some gastrostomy procedures in humans.

Cited by 17 publications

References 13 publications

A Novel Magnetic Compression Technique for Cystostomy in Rabbits

A Novel Magnetic Compression Technique for Cystostomy in Rabbits

Exploration and establishment of magnetic surgery

Novel magnetic compression technique for establishment of a canine model of tracheoesophageal fistula

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