Fedora-type magnetic compression anastomosis device for intestinal anastomosis.
Anastomotic stenosis
Compression pressure
Fedora-type magnetic compression anastomosis device
Magnetic compression anastomosis
Size of anastomat
Journal
World journal of gastroenterology
ISSN: 2219-2840
Titre abrégé: World J Gastroenterol
Pays: United States
ID NLM: 100883448
Informations de publication
Date de publication:
14 Nov 2020
14 Nov 2020
Historique:
received:
12
08
2020
revised:
29
08
2020
accepted:
10
09
2020
entrez:
3
12
2020
pubmed:
4
12
2020
medline:
15
5
2021
Statut:
ppublish
Résumé
Although previous studies have confirmed the feasibility of magnetic compression anastomosis (MCA), there is still a risk of long-term anastomotic stenosis. For traditional MCA devices, a large device is associated with great pressure, and eventually increased leakage. To develop a novel MCA device to simultaneously meet the requirements of pressure and size. Traditional nummular MCA devices of all possible sizes were used to conduct ileac anastomosis in rats. The mean (± SD) circumference of the ileum was 13.34 ± 0.12 mm. Based on short- and long-term follow-up results, we determined the appropriate pressure range and minimum size. Thereafter, we introduced a novel "fedora-type" MCA device, which entailed the use of a nummular magnet with a larger sheet metal. With traditional MCA devices, the anastomoses experienced stenosis and even closure during the long-term follow-up when the anastomat was smaller than Φ5 mm. However, the risk of leakage increased when it was larger than Φ4 mm. On comparison of the different designs, it was found that the "fedora-type" MCA device should be composed of a Φ4-mm nummular magnet with a Φ6-mm sheet metal. The diameter of the MCA device should be greater than 120% of the enteric diameter. The novel "fedora-type" MCA device controls the pressure and optimizes the size.
Sections du résumé
BACKGROUND
BACKGROUND
Although previous studies have confirmed the feasibility of magnetic compression anastomosis (MCA), there is still a risk of long-term anastomotic stenosis. For traditional MCA devices, a large device is associated with great pressure, and eventually increased leakage.
AIM
OBJECTIVE
To develop a novel MCA device to simultaneously meet the requirements of pressure and size.
METHODS
METHODS
Traditional nummular MCA devices of all possible sizes were used to conduct ileac anastomosis in rats. The mean (± SD) circumference of the ileum was 13.34 ± 0.12 mm. Based on short- and long-term follow-up results, we determined the appropriate pressure range and minimum size. Thereafter, we introduced a novel "fedora-type" MCA device, which entailed the use of a nummular magnet with a larger sheet metal.
RESULTS
RESULTS
With traditional MCA devices, the anastomoses experienced stenosis and even closure during the long-term follow-up when the anastomat was smaller than Φ5 mm. However, the risk of leakage increased when it was larger than Φ4 mm. On comparison of the different designs, it was found that the "fedora-type" MCA device should be composed of a Φ4-mm nummular magnet with a Φ6-mm sheet metal.
CONCLUSION
CONCLUSIONS
The diameter of the MCA device should be greater than 120% of the enteric diameter. The novel "fedora-type" MCA device controls the pressure and optimizes the size.
Identifiants
pubmed: 33268950
doi: 10.3748/wjg.v26.i42.6614
pmc: PMC7673965
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
6614-6625Informations de copyright
©The Author(s) 2020. Published by Baishideng Publishing Group Inc. All rights reserved.
Déclaration de conflit d'intérêts
Conflict-of-interest statement: All authors declare no conflicts of interest related to this article.
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