Application of Sequential Clinical Practice Using a Simulated Gastric Model Training Device in the Clinical Skills Training of Graduate Students Majoring in Gastroenterology
Objective To investigate whether a gastric model trainer can enhance clinical skills training for postgraduate gastroenterology students.To enhance current teaching techniques by assessing the effectiveness and usefulness of using the device for continuous clinical practice.Methods Sixty students studying gastroenterology at the Fifth Affiliated Hospital of Zhengzhou University were chosen from September 2021 to July 2023.All the 60 students underwent the basic learning of gastroscopy operation before the training.Thirty participants were randomly selected for the following training session:Group Ⅰreceived mental imagery rehearsal in addition to conventional training with a simulated gastric model trainer,while group Ⅱ used the simulated stomach model trainer device for training,group Ⅲ was the control group for the basic learning of gastroscope operation.After completing the training,the operation was performed on the simulated stomach model trainer device and the score was recorded to compare the assessment scores of the three groups.The remaining 30 students conducted the following training:Group A conducted the sequential training approach with a simulated gastric model involving ex vivo pig stomach and clinical practice,group B trained with the simulated stomach model trainer device,and group C conducted the basic learning of gastroscopy operation for the control group.After the completion of the training,the three groups performed 10 cases of endoscopic exercises under the guidance of the teacher.Then the students performed gastroscopy on the patients,recorded the success rate and operation time of the pharynx,pylorus and the duodenal insertion,and compared the assessment results of the three groups.Results Comparing the assessment scores on the simulated gastric model among group Ⅰ,Ⅱ,and Ⅲ,significant statistical differences were found among the three groups(P＜0.05).Specifically,group Ⅰ showed significantly better assessment scores in total,accuracy,safety,and operation time compared to group Ⅱ(P＜0.05).However,there were no significant differences in residual gas volume and patient comfort between the two groups(P＞0.05).When compared to group Ⅲ,group Ⅰdemonstrated a significant advantage in all assessment criteria(P＜0.05).Meanwhile,group Ⅱ showed significant advantages over group Ⅲ in terms of accuracy,safety,residual gas volume,patient comfort,and operation time(P＜0.05).Moreover,significant differences were observed among trainees in groups A,B,and C during gastroscopy operations(P＜0.05).Group A showed greater success in passing through the pharynx and descending section compared to group B,reaching these areas faster with higher reported comfort levels(P＜0.017).However,there was no significant difference in their success rates in passing through the pylorus(P＞0.05).On the other hand,group B had notably higher success rates than group C in passing through the pharynx,pylorus,and descending section,along with shorter times and higher comfort scores(P＜0.05).Conclusion The use of the simulated gastric model training device significantly enhances training effectiveness.Incorporating mental imagery rehearsal training further improves the learning of gastroscopy skills on the simulated gastric model training device.This method is easy to implement,easy to grasp,and is a highly feasible teaching aid.Employing the sequential training approach with a simulated gastric model involving ex vivo pig stomach and clinical practice significantly improves the success rates of passing through the pharynx,pylorus,and inserting into the descending part of the duodenum.Simultaneously,it reduces operation time,contributing to enhanced patient comfort.This training method,combining the sequential training approach with a simulated gastric model involving ex vivo pig stomach and clinical practice,is a more practical training model,delivering superior training outcomes.
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