- Centro Universitário Estácio de Ribeirão Preto, Medicina - Ribeirão Preto - SP - Brasil.
- Universidade de São Paulo, Medicina - Bauru - SP - Brasil.
Rev Col Bras Cir. 2023 Nov 13;50:e20233512. doi: 10.1590/0100-6991e-20233512-en. eCollection 2023.
training in critical surgical situations is crucial for a safe outcome. The use of simulators is well established, although many are quite expensive, requiring the search for financially viable solutions for training centers.
we built a low-cost simulator for intra-abdominal bleeding with inexpensive materials, such as a manikin chest, latex tubes, silicone rubber, and waterproof fabric, seeking to mimic the abdominal viscera and vessels and their anatomical correlations. An IV infusion set allowed simulated blood to flow under pressure, and the blood flowed freely during simulation. After obtaining a functional model, we selected general surgeons to validate the simulator and its use in teaching surgery. We used the content validity index (CVI), with a cutoff of 0.9.
the cost of building the prototype was US$71,00 in 2021, accounting for the purchase of the various necessary materials. Twelve raters participated in the validation tests. The results obtained from the feedback survey showed a good evaluation of all items, especially the recognition of the injured vessel, access to the vascular injury, hemostasis by manual compression, and hemostatic suturing.
the proposed simulator obtained good results in scenarios of intra-abdominal bleeding from large vessels, as well as for hemostasis by manual compression and suturing. It proved to be a useful tool for training in critical intra- abdominal bleeding situations, while maintaining a low cost of building.
在危急手术情况下进行培训对于确保安全结果至关重要。模拟器的使用已经得到充分证实，尽管许多模拟器都非常昂贵，需要为培训中心寻找经济可行的解决方案。
我们使用廉价材料，如人体模型胸部、乳胶管、硅橡胶和防水织物，构建了一个用于模拟腹腔内出血的低成本模拟器，旨在模拟腹部内脏和血管及其解剖学相关性。一套静脉输液套件允许模拟血液在压力下流动，并且在模拟过程中血液可以自由流动。在获得功能模型后，我们选择普外科医生来验证模拟器及其在手术教学中的应用。我们使用内容有效性指数（CVI），截止值为 0.9。
2021 年，原型的建造成本为 71,00 美元，包括购买各种必要材料的费用。12 名评估者参与了验证测试。从反馈调查中获得的结果表明，所有项目都得到了很好的评价，特别是对受伤血管的识别、对血管损伤的进入、手动压迫止血和止血缝合。
所提出的模拟器在大血管腹腔内出血场景以及手动压迫和缝合止血方面取得了良好的效果。它被证明是一种用于培训危急腹腔内出血情况的有用工具，同时保持了较低的建造成本。
