ArticleObesity surgery2019
An Experimental Study of Intraluminal Hyperpressure Reproducing a Gastric Leak Following a Sleeve Gastrectomy.
Article in Obesity surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.
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Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.
- Mechanical experimentation of the gastrointestinal tract: a systematic review.Biomechanics and modeling in mechanobiology · 2024Pooled it
- Patient-Specific Constitutive Models Based on Biaxial and Microstructural Characterisation of Fresh Human Gastric Tissue.Annals of biomedical engineering · 2026Article
- Characterization of the layer, direction and time-dependent mechanical behaviour of the human oesophagus and the effects of formalin preservation.Journal of the Royal Society, Interface · 2024Article
- Mechanism of Staple Line Leak After Sleeve Gastrectomy via Isobaric Pressurisation Concentrating Stress Forces at the Proximal Staple Line.Obesity surgery · 2022Article
- Primary Sleeve Gastrectomy and Leaks: The Impact of Fundus-Wall Thickness and Staple Heights on Leakage-An Observational Study of 500 Patients.Frontiers in surgery · 2021Article
- A French National Study on Gastropleural and Gastrobronchial Fistulas After Bariatric Surgery: the Impact of Therapeutic Strategy on Healing.Obesity surgery · 2020Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionA gastric leak (GL) represents the main post-operative complication following a sleeve gastrectomy (SG) and occurs most commonly at the top of the stapling, without any clear explanation.
objectiveThis experimental study evaluates the biomechanical behavior of post-SG gastric specimens using both insufflation and tensile tests. MATERIALS AND
methodsA total gastrectomy followed by an ex vivo SG was performed in 15 pigs. The "sleeved" stomachs were subjected to intraluminal hyperpressure until failure. Uniaxial circumferential and longitudinal tensile tests were performed using gastric strips obtained from the "resected" stomachs. All the deformations and burst pressures were recorded and analyzed.
resultsA GL appeared in the upper third of the stapling in 73% of cases. The mean burst pressure was 26.3 ± 5.3 mmHg and was significantly correlated with the volume of the "sleeved" stomachs (p = 0.02). The overall deformation of the "sleeved" stomachs was comparable in the frontal (38.3%) and profile (40.5%) planes. The greatest displacement was observed at the failure zone (11 mm on average). The biomechanical behavior of the stomach wall differed according to the strip orientation. The circumferential strips presented a higher strain-to-failure rate (97%) and a lower Young's modulus (0.99 MPa) when compared to the longitudinal strips (45% and 2.58 MPa, respectively).
conclusionThis preliminary study reproduced a GL in the same location as observed during clinical practice. The volume of the SG influenced the burst pressure. Further experimental studies and numerical simulations should evaluate the impact of shape modifications on an SG.
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