Abstract
Background
We aimed to evaluate the feasibility and oncologic safety of gasless endoscopic transaxillary thyroidectomy (TAT) in patients with thyroid diseases. Improvements in surgical techniques were also reported, and the learning curves of gasless endoscopic TAT were further studied.
Methods
An exact 1:1 matching analysis was performed to compare the technical safety and oncologic outcomes between TAT and conventional open surgery. A questionnaire was designed to evaluate the quality of life of enrolled patients. A cumulative summation analysis was designed for the quantitative estimation of the learning curves.
Results
A total of 105 consecutive patients who successfully received endoscopic TAT were retrospectively enrolled in the current study. A standard three-step working space making procedure, an approach that does not free the superficial part of the sternal head of the sternocleidomastoid muscle (SCM, NFSSH) and a “point to line to surface” en bloc procedure utilized in lobectomy with ipsilateral central neck dissection (CND), were introduced in our surgical procedures. The mean operation time in the TAT group was significantly longer than that in the conventional open group (86.9 ± 31.3 vs 44.2 ± 8.3, p < 0.001). Significant differences in the complication rate were not found between the two groups. Discomfort in the anterior neck area and SCM was relieved over time in most cases (verbal response scores (VRSs) were gradually decreased over time). The learning curves for working space making, ipsilateral thyroidectomy and the total endoscopic TAT approach were 45 cases, 25 cases and 42 cases, respectively. The operation time in the proficient group was significantly shorter than that in the learning group (67.0 ± 8.4 vs 112.3 ± 35.7, p < 0.001). VRSs in the SCM were significantly lower in the proficient group (for 1 week: 1.25 ± 0.65 vs 2.40 ± 0.63, p < 0.001; for 1 month: 0.81 ± 0.69 vs 1.81 ± 0.40, p < 0.001).
Conclusions
Gasless endoscopic TAT was safe in a cohort of patients with thyroid diseases, with satisfactory surgical outcomes and cosmetic appearance. The learning curve for endoscopic TAT was approximately 42 cases. The proficiency of the endoscopic TAT approach depended primarily on the proficiency of working space making.
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Funding
This work was supported by the National Natural Science Foundation of China (Grant No. 82073262) and the Hunan Province Natural Science Foundation (Grant Number 2021JJ41033).
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All authors made substantive intellectual contributions to this study to qualify as authors. FDX conceived of the design of the study. XYL modified the design of the study. BTS, PTL, RC, ZYZ performed the study, collected the data, and contributed to the design of the study. XYL, BTS, DZ analyzed the data. BTS, PTL drafted Result, Discussion, Conclusion sections. XYL, FDX drafted Methods sections. FDX, XYL edited the manuscript. All authors read and approved the final manuscript. All authors have agreed to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.
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Botao Sun, Peiting Li, Rong Cong, Di Zhou, Zeyu Zhang, Fada Xia and Xinying Li have no conflicts of interest or financial ties to disclose.
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Sun, B., Li, P., Cong, R. et al. Gasless endoscopic transaxillary thyroid surgery: CUSUM analysis of a single surgeon’s experience from 105 preliminary procedures. Surg Endosc 36, 8270–8279 (2022). https://doi.org/10.1007/s00464-022-09273-z
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DOI: https://doi.org/10.1007/s00464-022-09273-z