Ingestion of multiple magnets: hazardous foreign bodies for children

Surgical management of pediatric multiple magnet ingestions in the past two decades of minimal access surgery- systematic review of operative approaches

BACKGROUND

Multiple magnet ingestion is increasingly reported in paediatrics and can cause significant morbidity. Various surgical approaches exist, though minimal literature compares outcomes between techniques. This review evaluates laparoscopic, laparoscopic-assisted, and open surgery with regard to outcomes.

METHOD

Systematic review across MEDLINE, Embase, Scopus, and Web of Science identified reports of paediatric multiple magnet ingestion managed surgically between 2002 and 2022.

RESULTS

Ninety-nine studies were included, reporting data from 136 cases. Of these, 82 (60%) underwent laparotomy, 43 (32%) laparoscopic surgery, and 11 (8%) laparoscopic-assisted procedures. Sixteen laparoscopic cases were converted to open, often due to intraoperative findings including necrosis/perforation, or grossly dilated bowel. Bowel perforation occurred in 108 (79%); 47 (35%) required bowel resection, and 3 had temporary stoma formation. Postoperative recovery was uneventful in 118 (86%). Complications were reported following 15 (18%) open and 3 (7%) laparoscopic surgeries. No complications occurred following laparoscopic-assisted surgery. All post-laparoscopic complications were Clavien-Dindo (CD) Grade I. Following open surgery, 5 complications were CD grade I, 6 were CD grade II, and 4 were CD grade IIIb, requiring re-laparotomy. Median length of stay for open and laparoscopic-assisted procedures was 7 days, and for laparoscopic was 5 days (p < 0.001).

CONCLUSION

Surgical management of multiple magnet ingestion often achieved uncomplicated recovery and no long-term sequelae. Whilst open laparotomy was the more common approach, laparoscopic surgery was associated with reduced length of stay and postoperative complications. Therefore, in experienced hands, laparoscopic surgery should be considered first-line, with the possibility of conversion to open if required.

Neonatal and Pediatric Bowel Obstruction: Imaging Guidelines and Recommendations

Pediatric bowel obstructions are one of the most common surgical emergencies in children, and imaging plays a vital role in the evaluation and diagnosis. An evidence-based and practical imaging approach to diagnosing and localizing pediatric bowel obstructions is essential for optimal pediatric patient care. This article discusses an up-to-date practical diagnostic imaging algorithm for pediatric bowel obstructions and presents the imaging spectrum of pediatric bowel obstructions and their underlying causes.

Multiple magnet ingestion causing instestinal obstruction and entero-enteric fistula: Which imaging modality besides radiographs? A case report

Ingested foreign bodies occur in children younger than 3 years and pass uneventfully through the gastrointestinal tract. However, multiple magnet ingestion are associated with serious complications. A 9-year old male with abdominal pain and vomiting 3 days prior to admission, underwent abdominal radiographs showing radiopaque foreign bodies. Ultrasonography (US) independently discovered one magnet floating in the jejunum. Preoperative Computed Tomography (CT) confirmed the presence of two neighbouring magnets causing obstruction and beaking of an adjacent jejunal loop. Laparotomy led to uneventful recovery of transmesenteric fistula formation following pressure necrosis in two jejunal loops. We present the first case of multiple magnet ingestion managed in our institution, where the prevalence of magnet ingestions is low due to unpopularity of magnet toys.

CONCLUSION

Awareness of the potentially devastating effects of multiple magnets passing the pylorus and the contribution of different imaging modalities for the diagnosis are emphasized and discussed.

Magnetic FB injuries: an old yet unresolved hazard

RATIONALE AND AIM

Among foreign bodies causing injuries in children, magnets have been reported to cause serious complications and being life-threatening. The aim of this study is to design a risk profile and an epidemiological figure of such injuries, for being used for prevention.

METHODS

Data on 366 injuries have been collected from public surveillance databases and from published scientific literature, and compared with the data of the Susy Safe registry, which is a pan-European registry of foreign bodies injuries co-funded by the European Commission.

RESULTS

A median age of 48 months was observed, with a 63% prevalence of males is characterizing the injuries. Magnets have a median volume of 87.9 mm(3) vs the median volume of 41.86 mm(3) of the overall foreign bodies of the Susy Safe registry). Only 43% of the magnets were involving only on piece or objects, with a median number of two objects per injury, up to a maximum of 32 objects. Children are referred to the medical care system with a median delay of 3 days after onset of symptoms. Median length of stay in the hospital was 7 days with respect to 1 day as in the Susy Safe registry.

CONCLUSION

Most of complications, and event the death of a child can be eventually re-conducted to either or both a delay in patient referral or appropriate diagnosis. Thus, it is an absolute priority that an information initiative is taken toward families and emergency doctors to avoid unnecessarily delays respectively in patient referral and in diagnosis.

Bowel injuries caused by ingestion of multiple magnets in children: a growing hazard

PURPOSE

There are no definite guidelines on the management of ingested magnetic objects in children. The aim of this study was to present our experience and to highlight the importance of strict follow-up.

METHODS

Within 6 months period, four children presented to the emergency department after ingestion of multiple magnets. We reviewed retrospectively the patients' documents, radiological reports, operative findings and outcome. We also performed a literature search for all reports of multiple magnets ingestion on MEDLINE and EMBASE.

RESULTS

Daily abdominal radiographs to monitor migration of magnetic objects together with clinical examination revealed early detection of perforations in two patients. Explorative laparoscopy and suturing of perforations resulted in a rapid recovery and good cosmetic appearance. Literature search resulted in 44 published articles with a total of 52 cases of multiple magnet ingestion in children.

CONCLUSIONS

This report stresses the need for prompt follow-up and early detection of complications in order to operate those patients without delay. Laparoscopy is the method of choice in exploring the abdomen when perforation is suspected.

Multiple magnet ingestion: is there a role for early surgical intervention?

Children often swallow foreign bodies. Multiple magnet ingestion is rare, but can result in serious complications. This study presents three unique cases of multiple magnet ingestion: one case an 8-year-old boy with multiple magnet ingestion resulting in gastric obstruction and the other two cases with intestinal perforations due to multiple magnet intake. History and physical examination are unreliable in children who swallow multiple magnets. Sometimes radiological findings are not conclusive, whether one magnet is swallowed or more. If magnets are not moved in sequential radiology images, we recommend early surgical intervention before gastrointestinal complications develop. Toy companies, parents, physicians, and radiologists should be warned about the potential complications of such toys.

Magnet ingestion in dogs: two cases

Two dogs that had ingested foreign bodies were presented with vomiting. The foreign bodies appeared as metal and dense on abdominal radiographs. Abdominal exploratory identified intestinal perforation in one case and gastrointestinal tissue trapped between the two foreign bodies adhered to each other in the second case. The foreign bodies were identified as magnets in one case and magnets and other metallic foreign bodies in the second case. Both dogs had excellent outcomes following surgical intervention. These cases demonstrate the danger of tissue entrapment between the foreign bodies as a result of the magnetic attraction between two objects. Dogs that are presented with a history of or are suspect for ingesting multiple magnets or a magnet and metal foreign bodies should be treated with surgical intervention because of the risk of gastrointestinal perforation as a result of magnetic attraction between the foreign bodies.

Update on management of caustic and foreign body ingestion in children

The following recommendations for management of caustic and foreign body ingestion in children have been developed following a multicentre study performed by the Italian Society for Paediatric Gastroenterology, Hepatology and Nutrition (SIGENP). They are principally addressed to medical professionals involved in casualty. Because there is paucity of good quality clinical trials in children on this topic, many of the recommendations are currently extrapolated from adult experiences or based on experts opinions. The document represents a level 2 to 5 degree of evidence (according to the Oxford Centre for Evidence-based Medicine Levels of Evidence), gathered from clinical experience, recent studies, and expert reports discussed during a consensus conference of the Endoscopic Section of the Italian Society of Paediatric Gastroenterology Hepatology and Nutrition. This working group comprises paediatricians, endoscopists, paediatric surgeons, toxicologists, and ENT surgeons, who are all actively involved in the management of these children. Recommendations are intended to serve as an aid to clinical judgement, not to replace it and therefore do not provide answers to every clinical question; nor does adherence to them ensure a successful outcome in every case. The ultimate decision on the clinical management of an individual patient will always depend on the specific clinical circumstances of the patient, and on the clinical judgement of the health care team.

Attraction problems following magnet ingestion

Ingestion of magnetic toys is associated with serious complications that can result in pressure necrosis and bowel perforation. We report three cases of multiple (more than two) magnet ingestion. In two patients, the symptoms did not resolve and complications of perforation and jejunocolic fistula occurred. The third patient, however, had early intervention with no resultant complication. The literature is reviewed and close observation and early surgical intervention is recommended.

Magnetic toys: the emerging problem in pediatric ingestions

Acute abdominal pain in children presents a diagnostic dilemma. Although most children with acute abdominal pain have self-limited conditions, the pain may herald a surgical or medical emergency. Timely diagnosis is essential so treatment can be initiated and morbidity is prevented. There are common conditions that cause problems in most age groups (such as appendicitis) and others that are usually confined to a specific age group (such as intussusception). In younger children, in addition to anatomical causes of abdominal pain, foreign body ingestions may cause distress. It is crucial for a clinician to remember this increasingly common cause of abdominal pain to avoid complications such as bowel obstruction, intestinal necrosis, and perforation. We present the case of acute abdominal pain due to ingestion.

[Swallowing magnets: a dangerous game. A case report]

Complications related to the ingestion of magnetic foreign bodies by children represents an affirmed health hazard in the United States. In France, an alert has been announced. We report the 1st case in France. Our aim is to alert pediatricians and emergency physicians and to draw attention to the particularities of this type of foreign body. Responsible for complications is the ingestion of at least 2 magnets, or 1 magnet and a metallic foreign body, with a time interval between ingestions. In these cases, it is strongly recommended to extract the foreign bodies with endoscopy if they have not yet passed the pylorus. For those further advanced in the intestinal tract, continuous observation is warranted and surgical extraction is indicated on apparition of 1st clinical symptoms.

Magnetic attraction leading to a small bowel obstruction in a child

Foreign body ingestion in small children is common yet only 1% of cases require operative management of associated complications (Arana et al. in Eur J Pediatr 160:468-472, 2001). A 6-year-old boy was referred to our institution with a 12 h history of abdominal pain. This pain was diffuse and crampy in nature and associated with multiple episodes of non-bilious, non-bloody emesis. On evaluation he was stable and his abdomen demonstrated slight distention and tenderness without peritoneal signs. Plain abdominal radiographs demonstrated some distended loops of small bowel and a radio-opaque foreign object within the mid-abdomen. A small bowel obstruction secondary to foreign body ingestion was diagnosed and an emergent laparotomy performed. Upon exploration, a transition zone was noted near the ileocecal valve. Further exploration revealed the obstruction to be caused secondary to the apposition of two small (8 mm) magnets, one in the proximal ileum and the other near the ileocecal valve, resulting in an internal hernia. The magnets were easily separated relieving the obstruction and both were removed via two small bowel enterotomies. After being presented with the magnets, his parents suspected that they came from the clothes of a Polly Pocket (Mattel, Inc., El Segundo, CA) doll. The patient had an uneventful post-operative course and was discharged to home on the second post-operative day. This case demonstrates the complications that may occur with multiple magnet ingestion. It highlights the need for close observation and early surgical intervention in children with a suspected history of foreign body ingestion, a clinical picture of gastrointestinal distress, and radiographic evidence of a radio-opaque foreign object.

Toy magnet ingestion in children: revising the algorithm

The widespread popularity of magnetic toy sets has resulted in increased reports of magnet ingestion and subsequent complications. Traditional algorithms for ingested foreign bodies have advocated passage of these objects through the gastrointestinal tract spontaneously. In regard to magnet ingestion, the unique mechanism of pathogenesis, attraction of 2 or more magnets across multiple loops of bowel, has led to several cases of intestinal perforation caused by bowel wall erosion and necrosis between the magnets. Unfortunately, a misdiagnosis and misconception that a solitary magnet has been ingested may lead to a delay in diagnosis and subsequent severe and possibly preventable complications. We report a case in which a child presented having thought to have ingested a solitary magnetic toy from a magnet construction set. This resulted in the premature discharge from the hospital and the patient's subsequent return with an intraabdominal perforation resulting in an emergency laparotomy. The recent increase of case reports related to magnet ingestion has resulted in proposed treatment regimens for patients ingesting multiple magnets. We would also initiate the magnet algorithm if even presumably a single magnet was ingested. This would include close observation and early intervention, either with endoscopy or surgical exploration, which would theoretically prevent the more severe complications, reported in the literature.

Ingestion of unusual foreign bodies and malrotation: a "perfect storm"

Management of foreign body ingestion is usually nonsurgical unless atypical foreign bodies or anatomical variants are suspected. The present article illustrates a case of atypical foreign bodies ingestion in the presence of intestinal malrotation. The patient required surgical treatment and had an uneventful postoperative recovery. The article also reviews the cases reported in the literature of magnetic ingestion and the possible complications associated with it.