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Application, innovation, and quality control of endoscopic thyroidectomy by gasless unilateral axillary approach

Yawen GUO ; Chuanming ZHENG ; Minghua GE

Journal of Surgery Concepts & Practice.2025;30(1):1-6. doi:10.16139/j.1007-9610.2025.01.01

The endoscopic thyroidectomy by gasless unilateral axillary approach (GUA) represents a significant advancement in the field of endoscopic thyroid surgery, offering notable aesthetic and clinical therapeutic benefits. This paper reviewed the current clinical application, core technological innovations, quality control systems, and future developmental directions of GUA. Research indicated that GUA achieved surgical outcomes comparable to traditional open surgery in the treatment of benign thyroid tumors and thyroid cancer, while substantially enhancing cosmetic results and patient satisfaction. By optimizing the surgical approach design, enhancing cavity construction equipment, and standardizing the operational process, GUA markedly reduced the incidence of postoperative complications, preserved the anterior cervical functional area, and improved patients' postoperative quality of life. Furthermore, multidisciplinary collaboration and thorough pre-operative evaluation were fundamental to surgical success, while intraoperative quality control measures and a comprehensive postoperative follow-up system ensured the safety and efficacy of the procedure. In the future, the integration of robotic technology and advancements in single-site devices are anticipated to enhance the role of GUA in endoscopic thyroid surgery, thereby offering patients more minimally invasive and aesthetically favorable treatment options.

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Minimally invasive thyroid surgery: development and future

Lingxie CHEN ; Qiwu ZHAO ; Weihua QIU

Journal of Surgery Concepts & Practice.2025;30(1):7-12. doi:10.16139/j.1007-9610.2025.01.02

Since the 90s of the 20th century, thyroid endoscopic surgery has undergone the development from multi-port to single-site, from endoscopy to robot. In recent years, the emergence of da Vinci single-port robots and domestic single-port robots have further promoted the technological innovation of minimally invasive thyroid surgery. This article reviewed the development process of minimally invasive thyroid surgery from the development of endoscopic thyroid surgery, the breakthrough of single-site endoscopic surgery, and the realization of robotic thyroid surgery and single-port robotic thyroid surgery, and discussed the future of thyroid surgery in the era of artificial intelligence.

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Expanded application of superior standard recurrent laryngeal nerve and superior laryngeal nerve monitoring techniques in endoscopic and robotic thyroid surgery

Wenxin ZHAO ; Qijian HUANG ; Liyong ZHANG ; Shaojun CAI

Journal of Surgery Concepts & Practice.2025;30(1):13-16. doi:10.16139/j.1007-9610.2025.01.03

The standardized implementation of intraoperative nerve monitoring technology significantly minimizes surgical injury risks. Its application in endoscopic and robotic thyroid surgeries enhances procedural safety. Building upon standardized protocols, our team has innovated technical extensions through accumulated clinical experience, systematically formulated as operational guidelines. This article elucidated these technical extensions through pictures and videos, aiming to improve the safety and procedural fluency of endoscopic and robotic thyroidectomies.

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Progress and technical points of transoral endoscopic thyroidectomy vestibular approach

Peng CHEN ; Jianing SHI ; Wenjun JIA ; Jing FANG

Journal of Surgery Concepts & Practice.2025;30(1):17-20. doi:10.16139/j.1007-9610.2025.01.04

Transoral endoscopic thyroidectomy vestibular approach (TOETVA) is a novel endoscopic thyroid surgery method. TOETVA can completely dissect the lymph nodes in the central area and Ⅳ area. TOETVA has both advantages of beauty and curative effect. Based on the clinical experience of this technique, the author reviewed the development, indications, complications and surgical skills of TOETVA in recent years, and looked forward to the development trend of this technique.

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Recent advances in ultrasound diagnosis of thyroid follicular neoplasms

Yixuan SU ; YING TAO

Journal of Surgery Concepts & Practice.2025;30(1):21-26. doi:10.16139/j.1007-9610.2025.01.05

Conventional ultrasonography often struggles to accurately differentiate between benign and malignant thyroid follicular tumors, which relying heavily on postoperative pathological diagnosis. Recent advancements in novel ultrasound technologies and artificial intelligence(AI) have shown significant potential in improving diagnostic accuracy, reducing unnecessary surgeries, and decreasing misdiagnosis rates. Emerging ultrasound modalities, such as superb microvascular imaging, contrast-enhanced ultrasound, and ultrasound elastography, provide new approaches for preoperative differentiation of thyroid follicular tumors. This review summarized and discussed the application value of these novel ultrasound techniques and various AI-based modeling methods in the preoperative diagnosis of thyroid follicular tumors, aiming to provide a scientific basis for clinical decision-making.

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Interpretation of the 5th edition of WHO classification of endocrine and neuroendocrine tumors: update and progress on follicular cell-derived thyroid tumors

Shanshan LU ; Yuan JI

Journal of Surgery Concepts & Practice.2025;30(1):27-33. doi:10.16139/j.1007-9610.2025.01.06

The 2022 WHO classification of endocrine and neuroendocrine tumors (5th edition) categorizes thyroid follicular cell-derived tumors into benign, low-risk, and malignant types. Benign tumors now include thyroid follicular nodular lesions. A newly added category previously termed "borderline tumors" have been revised to low-risk follicular cell-derived tumors, which encompass non-invasive follicular thyroid neoplasm with papillary-like nuclear features, thyroid tumors of uncertain malignant potential, and hyalinizing trabecular tumors. The new WHO classification stratifies malignant follicular cell-derived tumors based on molecular characteristics and invasiveness: papillary thyroid carcinoma (PTC) with various histological subtypes represents BRAF-like malignancies; invasive encapsulated follicular variant PTC and follicular thyroid carcinoma represent RAS-like malignancies. Oncocytic carcinoma is now recognized as a distinct entity, specifically referring to tumors composed of ≥75% oncocytic follicular cells lacking PTC nuclear features and high-grade characteristics (necrosis and mitotic figures ≥3/2 mm²). A new category termed "high-grade follicular cell-derived thyroid carcinoma" has been added, encompassing traditional poorly differentiated thyroid carcinoma and differentiated high-grade thyroid carcinoma. Anaplastic thyroid carcinoma(ATC) remains the most undifferentiated type, with thyroid squamous cell carcinoma now classified as a subtype of ATC. The term "papillary thyroid microcarcinoma" is no longer recommended as a distinct subtype. Cribriform-morular thyroid carcinoma is no longer classified as a subtype of PTC, but is instead categorized as a tumor of uncertain histogenesis.

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Trends analysis of pancreatic cancer mortality in Xuhui district, Shanghai from 1992 to 2021

Jingshu XU ; Jianhua SHI ; Haiyan GU ; Lei CHEN ; Xiaolin QIAN ; Lu LU ; Deng NIU

Journal of Surgery Concepts & Practice.2025;30(1):34-40. doi:10.16139/j.1007-9610.2025.01.07

Objective To study the death status of pancreatic cancer among residents in Xuhui district, Shanghai, from 1992 to 2021, and analyze its trends of change, so as to provide evidence for the prevention and treatment of pancreatic cancer. Methods Based on the database of Shanghai death registration system from 1992 to 2021, the crude mortality rate, standardized mortality rate, age-specific mortality rate and other indicators of pancreatic cancer among registered residents in Xuhui district were calculated. The Joinpoint software was used to analyze the trends of average annual percent change (AAPC) of pancreatic cancer mortality rate, and the age-period-cohort model was used to analyze the age effect, period effect and birth cohort effect pairs significant changes in pancreatic cancer mortality. Results In 2021, the mortality rate of pancreatic cancer in Xuhui district, Shanghai, ranked fourth among malignant tumors, and the winning rate and world standard rate of the whole population, males and females were 8.34/100 000 (8.81/100 000, 7.98/100 000) and 7.28/100 000 (7.69/100 000, 6.96/100 000), respectively, with males higher than females. AAPC of crude mortality rate and the standardized (6) mortality rate were higher in males than that in females. The age-specific mortality rate increased with the increase of age, and the highest mortality rate was found in 60-84 years old group. The age-period-cohort model showed that from 1992 to 2021, the annual net shift of pancreatic cancer mortality among the whole population, male and female residents in Xuhui district, Shanghai, was 1.22%, 1.58%, 1.15% (P=0.20, 0.19, 0.45) respectively, and the time trend was not significant. From the perspective of age effect, the risk of death from pancreatic cancer in the whole population and with age deviation in males had an obvious trend with increasing age (P<0.05), while the age effect in females had no obvious trend. From the perspective of period effect, no period deviation was significant in the whole population, males and females (P>0.05). In terms of cohort effects, there were significant differences in the whole population and the male cohort deviations(P<0.05). No significant cohort effect was observed in the female population. Conclusions The mortality rate of pancreatic cancer among registered residents in Xuhui district, Shanghai from 1992 to 2021, was on the rise, especially in the 60-84 years old group and male. The prevention and control of pancreatic cancer needs to develop effective epidemic prevention measures for corresponding populations.

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Preliminary exploration of greater omentum metastasis rate in patients with gastric cancer: clinical pilot study of Dragon 05 trial

Zichen HUA ; Yu MEI ; Chen LI ; Chao YAN ; Min YAN ; Zhenggang ZHU ; Xuexin YAO

Journal of Surgery Concepts & Practice.2025;30(1):41-46. doi:10.16139/j.1007-9610.2025.01.08

Objective To investigate the rate of greater omentum metastasis in gastric cancer(GC). Methods General informations of patients with GC who underwent radical gastrectomy at Shanghai Ruijin Hospital in May 2020 were collected, and their clinicopathological characteristics were analyzed to find risk factors of greater omentum metastasis. Recurrence and survival were also assessed. Results A total of 59 patients with GC were included in the study, of which 2(3.4%) had greater omentum metastasis. One patient presented a pathological stage of pT4aN3bM0 and another ypT4bN1M0. The 3-year overall survival rate of patients in the study was 87.9%. Conclusions The rate of greater omentum metastasis was relatively low, and patients with greater omentum metastasis had an more advanced pathological stage. To further validate this clinical issue, a prospective randomized controlled clinical study should be conducted between radical gastrectomy with omentectomy and omentum-preserving radical gastrectomy.

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Predictive factors of pathological complete response after neoadjuvant therapy for locally advanced rectal cancer

Hao LI ; Yang LUO ; Tingfeng WANG ; Haiping LIN ; Tingyue GONG ; Yongheng ZHAO ; Ming ZHONG

Journal of Surgery Concepts & Practice.2025;30(1):47-53. doi:10.16139/j.1007-9610.2025.01.09

Objective To analyze the tumor characteristics associated with achieving pathological complete response(pCR) and tumor prognosis in the patients undergoing laparoscopic rectal cancer surgery after neoadjuvant chemoradiotherapy(nCRT). Methods A retrospective review was conducted on clinical and pathological data of locally advanced rectal cancer(LARC) patients who underwent nCRT at Renji Hospital from January 2017 to January 2024. Factors influencing the achievement of pCR were analyzed, and the patients prognosis of pCR group and non-pCR group was compared. Results Univariate analysis, multivariate Logistic regression analysis, and receiver operating characteristic (ROC) curve analysis showed that tumor length less than 5 cm(cutoff value 5.24 cm) and baseline carcinoembryonic antigen(CEA) less than 5 μg/L(cutoff value 5.33 μg/L) were independent predictors of achieving pCR after nCRT in LARC patients. Prognostic survival analysis showed that the 3-year overall survival(OS) rate for pCR group and non-pCR group were 92.86% and 82.46%, respectively (P=0.193), and the 3-year disease-free survival (DFS) rate were 85.71% and 70.18%, respectively (P=0.141), with no statistically significant differences between the two groups. Conclusions Tumor length and baseline CEA level are independent predictors for achieving pCR after nCRT in LARC patients. Additionally, there were no statistically significant differences in 3-year OS and DFS between pCR group and non-pCR group.

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Establishment of an evaluation system for conversion to laparotomy in laparoscopic cholecystectomy and exploration of surgical grading management

Nannan ZHANG ; Jinxing GUO ; Gang WU ; Hui YI ; Yuanhang ZHOU ; Zhiwei LIAO ; Qi HUANG ; Jian DONG

Journal of Surgery Concepts & Practice.2025;30(1):54-60. doi:10.16139/j.1007-9610.2025.01.10

Objective To develop and validate a scoring system to predict the possibility of laparoscopic cholecystectomy (LC) conversion to laparotomy based on preoperative clinical data, and to establish a grading management model of surgery. Methods A retrospective analysis was conducted on the clinical data of 9 414 patients who underwent LC at Renhe Hospital and Huashan Hospital from June 2013 to June 2018. The patients were divided into two groups: the LC group (9 246 patients who successfully underwent LC) and the conversion to laparotomy group (168 patients who required conversion to open surgery). The data of two groups were compared, and the risk factors affecting conversion to laparotomy were screened out by single factor analysis of Chi-square test. Then, the risk factors were analyzed by multiple Logistic regression, and the pre-coefficient of each variable of the risk factors was assigned according to the established conversion to laparotomy possibility function. After calculating the score of each case, the difference in the actual conversion rate of each group was compared. The area under receiver operating characteristic (ROC) curve was calculated to evaluate the performance of the scoring system. According to the scoring system, LC surgical grading management model was created and verified. Results The following factors were identified as significant risk factors for conversion to laparotomy (P < 0.001): body temperature ≥ 38.5℃, frequency of acute cholecystitis ≥3 times, maximum thickness of gallbladder wall ≥ 5 mm, gallbladder neck stone incarceration, diameter of common bile duct ≥8 mm, and surgical experience ≤50 cases were the risk factors for conversion to laparotomy (P < 0.001). A score >3 points was associated with a high risk of conversion to laparotomy. Conclusions The LC scoring system and surgical grading management are reliable and effective tools for predicting and reducing the conversion rate of LC to laparotomy.

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