Abstract
To introduce a nonliving microvascular training model based on vessels diameter and feasibility. We dissected ten oxen tongues, and divided the pedicles into three-thirds: proximal, middle and distal. We measured the external vessels diameter in all regions. We performed a descriptive statistical analysis. Three students (two beginner level and one intermediate level) performed this training. We evaluated the confidence, according Likert scale. We dissected all oxen tongues, each tongue showed two parallel pedicles. Each pedicle was located at 1.5 - 2.0 cm from the midline. Proximal median artery and vein diameter were 3.9 ± 0.7, and 5.04 ± 1.44mm, respectively. In the middle third, the mean artery diameter was 3.3 ± 0.4mm, and the vein diameter was 3.5 ± 0.9mm. The distal third showed a mean artery diameter of 2.0 ± 0.42mm, and a vein diameter of 2.4 ± 0.82mm. The students performed ten anastomoses. This study showed a higher confidence level (CL) (p=0.03) than the pre training CL assessment. This study suggested a feasible non-animal model for microsurgical training process for beginners and intermediate trainees.
Highlights
Microsurgical training needs special skills development, such as correct instrumental handling, adventectomy, which is a triangular technique for suturing
Because of ethical issues related to animal use in teaching process, most training programs use non-living animal models and simulation tasks of sutures in surgical training[1,2,3,4]
We observed that in some cases it was desirable to have an intermediate step in training process before chicken leg vessels anastomosis[5,6,7,8]
Summary
Microsurgical training needs special skills development, such as correct instrumental handling, adventectomy, which is a triangular technique for suturing. Stepwise learning process gives basis to the competence level on microsurgical anastomosis[3,4]. We use the glove suture structure and a chicken leg. We observed that in some cases it was desirable to have an intermediate step in training process before chicken leg vessels anastomosis[5,6,7,8]. According to the student’s skills performance, a surgeon can train in the proximal, middle or distal thirds. This progressive complexity (vessels diameter) can be an intermediate step. After this training, the student can perform the chicken leg and the chicken wing training (1 mm artery diameter)
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