Abstract
Background
Although histopathological evaluation after endoscopic submucosal dissection (ESD) is critical to assess the accuracy of endoscopic diagnosis, it is still challenging to perform precise endoscopic to pathological evaluation. We evaluated the importance of tissue marking dye (TMD)-targeted marking for post-ESD specimen guided by magnificent endoscope on histopathological accuracy and endoscopic-to-histopathological reconstruction.
Study design
A total of 81 specimens resected by ESD [43 without TMD marking (N-TMD group), and 38 specimens with TMD-targeted cancerous areas marking guided by post-procedural magnifying endoscopy on resected specimens (TMD group)] between January 31, 2019, and January 31, 2022 at the Renmin Hospital of Wuhan University were included in the study. The baseline characteristics of patients, discrepancies between endoscopic and histopathological diagnosis, and the impact of TMD on histopathological diagnosis and reconstruction were analyzed.
Results
Discrepancies between endoscopic (pre-ESD) and histopathological (post-ESD) diagnosis increased significantly in TMD group (68.4% (26/38) for tumor areas, 26.3% (10/38) for tumor margins, and 26.3% (10/38) for tumor differentiations) when compared with N-TMD group (p < 0.0001). Deeper sections were achieved in all TMD-marked resected lesions and 27.9% (12/43) lesions in the N-TMD group (p < 0.001). More pathological evaluations in TMD group were changed from curative resection to non-curative resection [6/38(15.8%) vs 1/43(2.3%)] compared with N-TMD group (p < 0.0001). TMD-targeted marking also improved the efficiency of histopathological reconstruction on pre-procedural endoscopic images and benefit endoscopists training.
Conclusion
TMD-targeted labeling on resected specimens could improve precise endoscopic-to-pathological diagnosis, reconstruction by point-to-point marking and benefit endoscopists training.
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Data availability
The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.
Abbreviations
- ESD:
-
Endoscopic submucosal dissection
- TMD:
-
Tissue marking dye
- GC:
-
Gastric cancer
- EGC:
-
Early gastric cancer
- NBI-ME:
-
Narrow-band imaging of magnifying endoscopy
- BLI-ME:
-
Blue laser imaging of magnifying endoscopy
- HGIN:
-
High-grade intraepithelial neoplasia
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Funding
This study was funded by the National Natural Science Foundation of China [Grant Number 81302131 (to Ping An)], Emergency Scientific Research Project of Wuhan Municipal Health Commission [Grant Number EX20B04 (to Ping An)], and the National Natural Science Foundation of China [Grant Number 82170632 (to Ping An)].
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JW: study concept and design, data analysis, and manuscript preparation. ZZ: study concept and design, pathological diagnosis. SZ: pathological analysis. XJ, JL, MJ, JZ, and XH: image analysis. JL and JS: data collection. JY, YD, and HY: study concept and design. PA: study concept and design, manuscript preparation, patient identification, coordination of image evaluation by endoscopists, and critical revision of the manuscript. All authors approved the final draft that is submitted.
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Jing Wang, Zhi Zeng, Shiying Zhang, Jian Kang, Xiaoda Jiang, Xu Huang, Jiao Li, Juan Su, Zi Luo, Peng Zhu, Jingping Yuan, Honggang Yu, and Ping An have no conflicts of interest or financial ties to disclose.
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This study was approved by the ethics committee of Renmin Hospital of Wuhan University (Wuhan, China; #WDRY2019-K052).
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Wang, J., Zeng, Z., Zhang, S. et al. Targeted labeling with tissue marking dyes guided by magnifying endoscopy of endoscopic submucosal dissection specimen improves the accuracy of endoscopic and histopathological diagnosis of early gastric cancer: a before–after study. Surg Endosc 37, 2897–2907 (2023). https://doi.org/10.1007/s00464-022-09792-9
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DOI: https://doi.org/10.1007/s00464-022-09792-9