Surgical treatment of multiple magnet ingestion in children: A single-center study

Table 1 Clinical data of children with ingested magnetic foreign bodies at admission

	n = 56	Proportion (Intragroup proportion)1
The time of ingestion can be confirmed	45	80.4%
< 3 d	(33)	(73.3%)
3-14 d	(7)	(15.6)
> 14 d	(5)	(11.1)
Unable to determine the time of ingestion	11	19.6%
Having gastrointestinal symptoms	(9)	(81.8%)
Having no gastrointestinal symptoms	(2)	(18.2%)
Admission symptoms
Abdominal pain (crying)	6	10.7%
Abdominal pain (crying) and vomiting	15	26.8%
Abdominal pain (crying), vomiting, and fever	3	5.4%
Shock	2	3.6%
No symptoms	30	53.6%

¹Proportion is the proportion of this item to the total cases with magnetic ingestion. The intragroup proportion in parentheses is the proportion of this item to the number of cases within the subgroup.

Table 2 Cases experiencing self-discharge of magnetic foreign bodies

Cases without gastroscope, without surgery, whose all magnetic foreign bodies were discharged by themselves
No.	Age (yr)	DBIG (day)	NIM	Type of magnet
1	4	3, 61	2	Disk magnet
2	5	3	3	Magnetic bead
3	5	5	4	Magnetic bead
4	6	2	4	Magnetic bead
5	7	2	2	Magnetic bead
6	8	1	7	Magnetic bead
7	8	3	2	Strip magnet
8	10	2	2	Magnetic bead
Cases of intestinal magnetic residue after gastroscopy, which were discharged by themselves
No.	Age (yr)	DBIG (d) DBGD (d)	NIM/NIMR	Type of magnet
1	10	2/1	3/1	Magnetic bead
2	13	5/4	4/2	Magnetic bead

¹The child swallowed two magnets at different times, which were discharged on the third and sixth days after swallowing. DBIG: Days between ingestion and discharge; DBGD: Days between gastroscopy and discharge; NIM: Number of ingested magnets; NIMR: Number of intestinal magnetic residues.

Table 3 List of perforation positions caused by magnetic foreign bodies in children

Position	n = 36	Proportion (%)
Small intestine-small intestine	15	41.7
Stomach-small intestine	8	22.2
Small intestine-colon	4	11.1
Duodenum-small intestine	3	8.3
Stomach-colon	2	5.6
Duodenum-colon	2	5.6
Stomach-small intestine - colon	1	2.8
Esophagus-trachea1	1	2.8
Esophagus-stomach	1	2.8%

¹This case was accompanied by a perforation between the intestines.