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Minimally Invasive Therapy & Allied... Apr 2021There is a growing interest in minimally invasive endoscopic gallbladder drainage therapies. Unlike stenting, a technology based on magnetic compression could...
INTRODUCTION
There is a growing interest in minimally invasive endoscopic gallbladder drainage therapies. Unlike stenting, a technology based on magnetic compression could theoretically produce a durable drainage anastomosis without residual foreign material. This study aimed to evaluate the safety and technical feasibility of a cholecysto-duodenal magnetic compression anastomosis.
MATERIAL AND METHODS
We performed a survival study of two Yorkshire pigs. Duodenal magnets were deployed endoscopically; reciprocal gallbladder magnets were placed laparoscopically, and the magnets were coupled. Pigs underwent serial endoscopy documenting magnet expulsion and evolution of cholecysto-duodenal anastomosis creation. Necropsies and histological evaluation were performed. Primary endpoints were technical success and safety. Secondary endpoints included anastomosis integrity, patency, and histologic characteristics.
RESULTS
Magnets were successfully delivered and coupled. Patent, leak-free anastomoses formed by day 4. Magnets were expelled by day 10. All anastomoses were widely patent at one month (mean diameter 15 mm). Necropsy showed the absence of adhesions affecting the anastomosis. Histology showed complete re-epithelialization without inflammation or foreign body reaction.
CONCLUSIONS
Magnetic cholecysto-duodenal anastomosis for gallbladder drainage appears safe and feasible in the animal model. The anastomoses are patent, leak-free, and without inflammation from the presence of foreign material. Technical modifications for magnet delivery under endoscopic ultrasound (EUS) guidance are currently underway.
Topics: Anastomosis, Surgical; Animals; Gallbladder; Magnetic Phenomena; Magnetics; Magnets; Swine
PubMed: 31682532
DOI: 10.1080/13645706.2019.1683032 -
Medical Reference Services Quarterly 2023In 2007, Diane Ream Rourke published in this journal, the history and explanation for Baptist Hospital in Florida to include its library on its successful Magnet...
In 2007, Diane Ream Rourke published in this journal, the history and explanation for Baptist Hospital in Florida to include its library on its successful Magnet journey. This article draws heavily from American Nursing Credentialing Center (ANCC) Magnet Information pages. It begins with a quick review of the history of the Program, further suggestions for a librarian's contribution to obtain Magnet Recognition and a brief current literature review on the values Magnet Recognition brings to a hospital's economics, patient care, and nursing staff. The quick history review and suggestions on the librarian contribution to the Magnet journey are based on an invited CE course by this author. The literature review on the values Magnet Recognition brings to a hospital's economics, patient care, and nursing staff was part of a presentation this author prepared for the Chief of Nursing. This author was a Magnet Champion and Magnet exemplar when Virtua Health first earned its first Magnet designation.
Topics: Humans; Magnets; Florida; Hospitals; Information Centers; Librarians
PubMed: 36862615
DOI: 10.1080/02763869.2023.2160130 -
Swiss Dental Journal Feb 2023
Topics: Humans; Magnets; Tooth Injuries
PubMed: 36723436
DOI: 10.61872/sdj-2023-02-03 -
Nursing May 2021
Topics: Child, Preschool; Emergency Nursing; Foreign Bodies; Humans; Magnets
PubMed: 33885423
DOI: 10.1097/01.NURSE.0000743084.78702.3c -
Saudi Medical Journal Aug 2021To systematically review the occurrence of magnet or receiver/stimulator displacement following cochlear implant (CI) placement complication and evaluate the existing...
OBJECTIVES
To systematically review the occurrence of magnet or receiver/stimulator displacement following cochlear implant (CI) placement complication and evaluate the existing literature on this topic.
METHODS
A systematic literature search was conducted using PubMed, Scopus, Web of Science, Virtual Health Library (VHL), and Cochrane Library. Original studies reporting cases of magnet or receiver-stimulator migration occurring as a complication after CI placement were included. The quality of the included studies was evaluated using the National Institutes of Health Quality Assessment Tool for observational studies and CARE checklist for case studies.
RESULTS
A total of 36 studies, including 6469 patients, were included. Magnet migration was reported in 82 (1.3%) patients, while receiver/stimulator was reported in 4 (0.1%) cases. The cause of magnet migration was identified in 78 cases; MRI-induced movement was the most frequently reported cause (n=43, 55.1%), followed by head trauma (n=25, 32.1%). A total of 20 studies involving 35 patients with magnet migration performed skull radiography to diagnose magnet migration. Revision/exploratory surgery with surgical repositioning or replacement was the most frequent management procedure (n=46).
CONCLUSIONS
Further research on magnet pocket design and standard protocols for MRI in CI users is needed. Early diagnosis of magnet migration and instant referral to specialized CI centers is necessary for proper management and prevention of major complications. PROSPERO REG. NO. CRD: 42020204514.
Topics: Cochlear Implantation; Cochlear Implants; Humans; Magnetic Resonance Imaging; Magnets; Reoperation
PubMed: 34344804
DOI: 10.15537/smj.2021.42.8.20210294 -
Electrophoresis Nov 2021Magnetic Digital microfluidics (DMF), which enables the manipulation of droplets containing different types of samples and reagents by permanent magnets or electromagnet... (Review)
Review
Magnetic Digital microfluidics (DMF), which enables the manipulation of droplets containing different types of samples and reagents by permanent magnets or electromagnet arrays, has been used as a promising platform technology for bioanalytical and preparative assays. This is due to its unique advantages such as simple and "power free" operation, easy assembly, great compatibility with auto control systems, and dual functionality of magnetic particles (actuation and target attachment). Over the past decades, magnetic DMF technique has gained a widespread attention in many fields such as sample-to-answer molecular diagnostics, immunoassays, cell assays, on-demand chemical synthesis, and single-cell manipulation. In the first part of this review, we summarised features of magnetic DMF. Then, we introduced the actuation mechanisms and fabrication of magnetic DMF. Furthermore, we discussed five main applications of magnetic DMF, namely drug screening, protein assays, polymerase chain reaction (PCR), cell manipulation, and chemical analysis and synthesis. In the last part of the review, current challenges and limitations with magnetic DMF technique were discussed, such as biocompatibility, automation of microdroplet control systems, and microdroplet evaporation, with an eye on towards future development.
Topics: Immunoassay; Magnetic Phenomena; Magnetics; Magnets; Microfluidic Analytical Techniques; Microfluidics
PubMed: 34196022
DOI: 10.1002/elps.202100088 -
Journal of Pediatric Gastroenterology... Apr 2023Magnet ingestion is a special category of foreign body ingestion associated with high levels of morbidity and mortality worldwide, particularly if it is associated with... (Review)
Review
Magnet ingestion is a special category of foreign body ingestion associated with high levels of morbidity and mortality worldwide, particularly if it is associated with staggered ingestion of multiple magnets or with simultaneous ingestion of other metallic foreign bodies, especially button batteries. A special category of magnet ingestion is the ingestion of earth magnets, which have higher levels of magnetism and therefore, potentially, carries a worse outcome. Legislative bodies, scientific Societies and community-led initiatives have been implemented worldwide with the aim of mitigating the effects of this growing, yet avoidable potential medical emergency. A scoping literature review summarized epidemiology, diagnosis, management, and prevention, including an algorithm for the diagnosis and management of magnet ingestion is presented and compared to previously published reviews and position papers (North American Society of Pediatric Gastroenterology, Hepatology and Nutrition, National Poison Center, Royal College of Emergency Medicine). The main emphasis of the algorithm is on identification of staggered/multiple magnet ingestion, and early joint gastroenterology and surgical consultation and management.
Topics: Child; Humans; Eating; Foreign Bodies; Gastroenterology; Gastrointestinal Tract; Magnets; Societies, Scientific
PubMed: 36947000
DOI: 10.1097/MPG.0000000000003702 -
Journal of Paediatrics and Child Health Oct 2022Ingestion of multiple magnets is increasing these last 15 years in children. They have resulted in numerous reports of serious gastrointestinal complications such as... (Review)
Review
AIM
Ingestion of multiple magnets is increasing these last 15 years in children. They have resulted in numerous reports of serious gastrointestinal complications such as bowel obstruction, ischaemia, necrosis, perforation and fistula formation and even led to death. The increasing number of world-wide reports of complications secondary to magnet ingestion and a frequently delayed diagnosis point to a lack of awareness about these risks among medical care-givers in our country and parents in general.
METHODS
We reviewed retrospectively all cases of multiple magnet ingestion that required a gastro-intestinal or surgical procedure for removal from 2009 to 2020.
RESULTS
Five children underwent gastroscopy removal and three colonoscopy removal of the magnets. Five patients required surgical (laparotomy or laparoscopy) removal of multiple magnets with intestinal perforations.
CONCLUSIONS
We propose an updated management algorithm for multiple magnet ingestion to highlight awareness among primary physicians and parents of the presenting circumstances and symptoms as well as the potential complications associated with multiple magnet ingestion.
Topics: Child; Eating; Foreign Bodies; Humans; Intestinal Obstruction; Intestinal Perforation; Magnets; Retrospective Studies
PubMed: 35841278
DOI: 10.1111/jpc.16117 -
BJS Open May 2022Magnets and button batteries (BBs) are dangerous ingested foreign bodies in children. The scale and consequences of this public health issue in the UK are unknown. This... (Observational Study)
Observational Study
BACKGROUND
Magnets and button batteries (BBs) are dangerous ingested foreign bodies in children. The scale and consequences of this public health issue in the UK are unknown. This study aims to report the current management strategies and outcomes associated with paediatric magnet and BB ingestion in the UK.
METHODS
This multicentre, retrospective observational study involved 13 UK tertiary paediatric surgery centres. Children aged under 17 years, admitted between 1 October 2019 and 30 September 2020, following magnet, or BB ingestion were included. Demographics, investigations, management, and complications were recorded.
RESULTS
In total, 263 patients were identified, comprising 146 (55.5 per cent) magnet, 112 (42.6 per cent) BB, and 5 (1.9 per cent) mixed magnet BB ingestions. Median (interquartile range) age was 4.8 (2.0-9.1) years and 47.5 per cent were female. In the magnet group, 38 (26.0 per cent) children swallowed single magnets, 3 of whom underwent endoscopic retrieval for oesophageal or gastric impaction. Of the 108 (74.0 per cent) children who swallowed multiple magnets, 51 (47.2 per cent) required endoscopic or surgical intervention, predominantly for failure of magnets to progress on serial imaging. Bowel perforations occurred in 10 children (9.3 per cent). Younger age and ingestion of greater numbers of multiple magnets were independently associated with surgery. BB ingestion caused morbidity in 14 children (12.5 per cent) and life-threatening injuries in two (1.8 per cent); the majority were caused by oesophageal BBs (64.3 per cent).
CONCLUSION
Multiple magnet and BB ingestions are associated with significant morbidity. Action must be taken at an international level to regulate the sale of magnets and BBs, and to raise awareness of the risks that these objects pose to children.
Topics: Child; Eating; Female; Hospitalization; Humans; Intestinal Perforation; Magnets; Male; Specialties, Surgical
PubMed: 35657136
DOI: 10.1093/bjsopen/zrac056 -
Surgical Endoscopy Jun 2019Laparoscopic and endoscopic surgery has undergone vast progress during the last 2 decades, translating into improved patient outcomes. A prime example of this... (Review)
Review
BACKGROUND
Laparoscopic and endoscopic surgery has undergone vast progress during the last 2 decades, translating into improved patient outcomes. A prime example of this development is the use of magnetic devices in gastrointestinal surgery. Magnetic devices have been developed and implemented for both laparoscopic and endoscopic surgery, providing alternatives for retraction, anchoring, and compression among other critical surgical steps. The purpose of this review is to explore the use of magnetic devices in gastrointestinal surgery, and describe different magnetic technologies, current applications, and future directions.
METHODS
IRB approval and written consent were not required. In this review of the existing literature, we offer a critical examination at the use of magnets for gastrointestinal surgery currently described. We show the experiences done to date, the benefits in laparoscopic and endoscopic surgery, and additional future implications.
RESULTS
Magnetic devices have been tested in the field of gastrointestinal surgery, both in the contexts of animal and human experimentation. Magnets have been mainly used for retraction, anchoring, mobilization, and anastomosis.
CONCLUSION
Research into the use of magnets in gastrointestinal surgery offers promising results. The integration of these technologies in minimally invasive surgery provides benefits in various procedures. However, more research is needed to continually evaluate their impact and implementation into surgical practice.
Topics: Anastomosis, Surgical; Animals; Digestive System Surgical Procedures; Humans; Laparoscopy; Magnets; Minimally Invasive Surgical Procedures; Models, Animal
PubMed: 30805789
DOI: 10.1007/s00464-019-06718-w