Magnetic kissing for the endoscopic treatment of a complete iatrogenic stenosis of the hypopharynx

Mascagni, Pietro; Tringali, Andrea; Boškoski, Ivo; Bove, V. Michael; Schepis, Tommaso; Perri, Vincenzo; Costamagna, Guido

doi:10.1055/a-2029-6340

Cited by 6 publications

(3 citation statements)

References 5 publications

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“…Recently, other groups have been reviving MCA for use in various pediatric surgical indications [ 13 ], including esophageal atresia repair [ 11 , 12 , 27 ], rectal atresia [ 9 ], duodenal stenosis [ 10 ], vascular anastomosis [ 28 ], and for re-cannulation of the hypopharynx [ 29 ]. Several experimental studies have been conducted in swine [ 30 , 31 ], rabbits, and dogs [ 32 ].…”

Section: Discussionmentioning

confidence: 99%

Magnetic Compression Anastomosis–Past Experience and Current Proposals for Further Development in Pediatric Minimally Invasive Surgery

Kotlovsky,

Muensterer,

Nikolaev

et al. 2023

Children

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Originating in the 1970s, magnetic compression anastomosis (MCA) has lately been revisited with a focus on minimal invasive surgery (MIS). The aim of this report is to reappraise our earlier experience with MCA with the intention of facilitating future MCA advancement. A retrospective review was conducted regarding preclinical experiments and clinical trials at a single institution from 1980 to 1995. The reviewed information was compiled and appraised to generate proposals for future MCA use. The experimental studies, including 250 MCA cases in gastrointestinal and urinary tract animal models, demonstrated the technical versatility of MCA as well as the superior biomechanical characteristics in comparison to hand-sewn anastomoses. Clinical trials encompassed 87 MCA procedures in 86 children, 2 to 10 years of age, involving the following techniques: non-operative esophageal recanalization (n = 15), non-operative ileostomy undiversion (n = 46), Swenson pull-through (n = 10), non-operative urethral recanalization (n = 5), and extravesical ureterocystoneostomy (n = 11). Clinical MCA was found to be successful in over 87% of cases. MCA limitations concerning anastomotic failure and scarring were thought to be mostly due to inadequate magnetic compression. Based on our historic experience, we propose further research on the technical aspects of MCA, along with the biological aspects of anastomotic tissue remodeling. Magnets should be designed and manufactured for a wide spectrum of pediatric surgical indications, particularly in combination with novel MIS techniques.

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Section: Discussionmentioning

confidence: 99%

Magnetic Compression Anastomosis–Past Experience and Current Proposals for Further Development in Pediatric Minimally Invasive Surgery

Kotlovsky,

Muensterer,

Nikolaev

et al. 2023

Children

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“…Magnetic compression anastomosis (MCA) has been used for the treatment of severe colorectal stenosis and atresia 1 2 3 . Herein we report a case of stenosis of the descending colon treated with transanal single-channel MCA.…”

Section: Figmentioning

confidence: 99%

A novel self-shaping magnetic compression anastomosis ring for treatment of colonic stenosis

Zhang,

He,

Sha

et al. 2023

Endoscopy

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Fig. 2 Surgical plan. a Placement of the self-shaping magnetic anastomosis ring in the colon. b Bypass magnetic compression anastomosis was established due to the attraction between daughter and parent magnetic rings.▶ Fig. 3 X-ray view of the daughter and parent magnets: a located at the opposite ends of the narrow colon; b when attracted to each other.▶ Fig. 4 Postoperative day 7: a the self-shaping magnetic anastomosis rings were expelled; b colonoscopic view of the anastomosis

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“…Since Obora reported the study of microvascular magnetic anastomosis in 1978, magnetic compression anastomosis (MCA) has attracted the attention of clinicians. The research on MCA and its clinical application in gastroenterology comprises esophageal[ 1 - 3 ], gastrointestinal[ 4 - 6 ], and small bowel[ 7 - 9 ] anastomosis. Other examples include vascular[ 10 - 11 ] and ureterovesical[ 12 ] anastomosis.…”

Section: Introductionmentioning

confidence: 99%

Influence of different magnetic forces on the effect of colonic anastomosis in rats

Tian,

Zhang,

et al. 2024

World J Gastrointest Surg

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BACKGROUND Despite much work having been conducted on magnetic compression anastomosis (MCA) in the digestive tract, there are no reports on the influence of magnetic force on the anastomosis. AIM To investigate the effect of different magnetic force magnets on the MCA of the digestive tract. METHODS Two groups of magnets of the same sizes but different magnetic forces were designed and produced. A total of 24 Sprague-Dawley rats were randomly assigned into two groups (powerful magnet group and common magnet group), with 12 rats in each group. Two types of magnets were used to complete the colonic side-to-side anastomosis of the rats. The operation time and magnet discharge time were recorded. The anastomotic specimens were obtained 4 wk after the operation and then the burst pressure and diameter of the anastomosis were measured, and the anastomosis was observed via the naked eye and subjected to histological examination. RESULTS The magnetic forces of the powerful and common magnet groups at zero distance were 8.26 N and 4.10 N, respectively. The colonic side-to-side anastomosis was completed in all 24 rats, and the operation success rate and postoperative survival rate were 100%. No significant difference was noted in the operation time between the two groups. The magnet discharge time of the powerful magnet group was slightly longer than that of the common magnet group, but the difference was not statistically significant (P = 0.513). Furthermore, there was no statistical difference in the burst pressure (P = 0.266) or diameter of magnetic anastomosis (P = 0.095) between the two groups. The gross specimens of the two groups showed good anastomotic healing, and histological observation indicated good mucosal continuity without differences on healing. CONCLUSION In the rat colonic side-to-side MCA model, both the powerful magnet with 8.26 N and the common magnet with 4.10 N showed no significant impact on the anastomosis establishment process or its effect.

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Magnetic kissing for the endoscopic treatment of a complete iatrogenic stenosis of the hypopharynx

Cited by 6 publications

References 5 publications

Magnetic Compression Anastomosis–Past Experience and Current Proposals for Further Development in Pediatric Minimally Invasive Surgery

Magnetic Compression Anastomosis–Past Experience and Current Proposals for Further Development in Pediatric Minimally Invasive Surgery

A novel self-shaping magnetic compression anastomosis ring for treatment of colonic stenosis

Influence of different magnetic forces on the effect of colonic anastomosis in rats

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