Magnetic instrumentation and other applications of magnets in NOTES.

Grymek, Szymon; Wojanowska, Magdalena; Łubniewski, Marek; Makarewicz, Wojciech; Dobrowolski, Sebastian; Łachiński, Andrzej J.; Śledziński, Zbigniew

doi:10.5114/wiitm.2011.25665

Cited by 12 publications

(13 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…First, permanent magnets, especially the Neodymiun type, have low resistance to corrosion inside the human body. Thus, an inert non-ferromagnetic coating (gold or epoxy resin) must be used to prevent release of harmful substances 17 . Second, the distance between magnets is a noteworthy factor in establishment of suitable counter-traction power.…”

Section: Discussionmentioning

confidence: 99%

Electromagnetic assisted endoscopic submucosal dissection is more efficient than water-jet assisted and conventional ESD in experimental model

Sánchez

Belda

et al. 2018

Endosc Int Open

View full text Add to dashboard Cite

Background and study aims The adequate visualization of the dissection line, inside the submucosal layer, supposes the main challenging issue in ESD. For this reason, several counter traction methods have been developed focused on overcoming this handicap. One of which, Magnetic anchor guided – ESD (MG-ESD) is an attractive alternative. However, the usefulness of this approach has been scarcely assessed and compared with other ESD strategies. Therefore, the aim of this study is to compare three different ESD alternatives in experimental faction. Methods This was a prospective non-randomized study, in which three different ESD techniques were performed in an ex-vivo gastric porcine model by an endoscopist slight expertise in ESD: conventional ESD, waterjet assisted ESD and MG-ESD. MG-ESD was performed using two different magnets: inner Neodymiun ringed shape magnet attached to the simulated lesions by an endoclip and external electromagnet connected to a Single Output Adjustable 24V/0.3A Power Supply Unit. Results Forty-six ESD procedures were performed: 24 conventional ESD, 12 waterjet-assisted ESD and 10 MG-ESD. Average size of the simulated lesions was 33.86 mm. No differences in terms of safety and efficacy were registered between the three approaches. Nevertheless, MG-ESD proved to be faster and more efficient than conventional ESD and water-jet assisted ESD (min per cm 2 10.85 vs. 7.43 vs. 3,41; P = 0.001). Conclusions MG-ESD could be a feasible alternative to conventional ESD even at the beginning of the learning curve. Therefore, researches focused on developing appropriate ESD magnetic devices and further comparative studies must be promoted, in order to assess the reliable usefulness of the magnet-assistance in ESD.

show abstract

Section: Discussionmentioning

confidence: 99%

Electromagnetic assisted endoscopic submucosal dissection is more efficient than water-jet assisted and conventional ESD in experimental model

Sánchez

Belda

et al. 2018

Endosc Int Open

View full text Add to dashboard Cite

show abstract

“…With all the breaking news on NOTES published by the media, one might get an impression that NOTES is a valid option for patients today. Despite rapid progress in peritoneal cavity access, navigation skills, access side closure techniques and others, NOTES might only be a reality of tomorrow [13–15], and then only for selected procedures. But even for those the implementation of NOTES will be to a large extent a patient-driven process.…”

Section: Discussionmentioning

confidence: 99%

NOTES. Study on patients' perspective.

Stefaniak¹,

Łaski²,

Mackowiak³

et al. 2013

Videosurgery and Other Miniinvasive Techniques

Self Cite

View full text Add to dashboard Cite

IntroductionRapid development of minimally invasive surgery has led to escalation of the demands placed on health care professionals. Nowadays the patient is the one to choose where and how she/he wants to be operated on. Perioperative and postoperative quality of life is the most common item impacting the patients’ choice. Laparoscopic surgery is undoubtedly advantageous in several applications; however a further improvement of medical services has been introduced: the NOTES technique. This novel surgical approach definitively eliminates the problem of having scars. Though NOTES is still in the clinical trial stage, it might become an alternative for selected procedures soon. At this point it is necessary to define the patients’ expectations and preferences.AimTo evaluate patients’ opinions on the four surgical approaches: open, laparoscopic, transvaginal and transgastric.Material and methodsFor this purpose a special questionnaire was designed and one hundred randomly selected women were asked to complete it.ResultsThe laparoscopic access was preferable in most aspects, closely followed by the transvaginal access. Open and transgastric approaches were considered as dangerous and disadvantageous.ConclusionsCurrently NOTES is a possible reality of tomorrow for some procedures. The transvaginal access was scored as “attractive”, “cosmetically attractive” and “technologically advanced”, as opposed to the transgastric access. The fact of manipulation in the intimate region requires thorough attention in future NOTES studies. Though the patients currently prefer the laparoscopic approach, this study proves that further development of transvaginal NOTES technology is acceptable and to some extent desired by the patients.

show abstract

“…Thus, all neodymium magnets should be isolated from contact with tissues and fluids inside the body. The shielding material must be inert to the human body and non-obstructive to the magnetic field ( e.g ., gold or epoxy)[ 29 ].…”

Section: Permanent Magnetsmentioning

confidence: 99%

“…Unlike the clip-with-line, percutaneous traction, and sinker-assisted methods, MAG-ESD provides dynamic traction in a sense that the external magnet can be moved to change the direction of retraction. Permanent and electromagnets are the only two types of magnets available[ 29 ].…”

Section: Introductionmentioning

confidence: 99%

Magnetic anchor guidance for endoscopic submucosal dissection and other endoscopic procedures

Mortagy

Mehta

Parsi

et al. 2017

WJG

View full text Add to dashboard Cite

Endoscopic submucosal dissection (ESD) is a well-established, minimally invasive treatment for superficial neoplasms of the gastrointestinal tract. The universal adoption of ESD has been limited by its slow learning curve, long procedure times, and high risk of complications. One technical challenge is the lack of a second hand that can provide traction, as in conventional surgery. Reliable tissue retraction that exposes the submucosal plane of dissection would allow for safer and more efficient dissection. Magnetic anchor guided endoscopic submucosal dissection (MAG-ESD) has potential benefits compared to other current traction methods. MAG-ESD offers dynamic tissue retraction independent of the endoscope mimicking a surgeon’s “second hand”. Two types of magnets can be used: electromagnets and permanent magnets. In this article we review the MAG-ESD technology, published work and studies of magnets in ESD. We also review the use of magnetic anchor guidance systems in natural orifice transluminal endoscopic surgery and the idea of magnetic non-contact retraction using surface ferromagentization. We discuss the current limitations, the future potential of MAG-ESD and the developments needed for adoption of this technology.

show abstract

Magnetic instrumentation and other applications of magnets in NOTES.

Cited by 12 publications

References 14 publications

Electromagnetic assisted endoscopic submucosal dissection is more efficient than water-jet assisted and conventional ESD in experimental model

Electromagnetic assisted endoscopic submucosal dissection is more efficient than water-jet assisted and conventional ESD in experimental model

NOTES. Study on patients' perspective.

Magnetic anchor guidance for endoscopic submucosal dissection and other endoscopic procedures

Contact Info

Product

Resources

About