Re-do Operation Using a Robotic System due to Locoregional Recurrence after Initial Thyroidectomy for Thyroid Cancer

Safety and feasibility of robotic reoperation via a bilateral axillo-breast approach for patients with locally recurrent thyroid cancer: a single-center retrospective study

Background

For patients with recurrent thyroid cancer, traditional open re-operative surgeries often leave conspicuous cervical scars, significantly impacting patients' long-term quality of life. The potential for robotic surgery to enhance the aesthetic outcomes of re-operative surgery and improve the quality of life for these patients has rarely been studied. This study aimed to assess the feasibility and effectiveness of robotic reoperation for recurrent thyroid cancer following initial surgery, offering a viable surgical alternative tailored to patients with heightened aesthetic concerns.

Methods

We conducted a retrospective analysis of patients with recurrent thyroid cancer who underwent robotic reoperation via the bilateral axillo-breast approach (BABA) at the 960th Hospital of People's Liberation Army between September 2018 and March 2024. The study design involved a comprehensive review of clinical data, including patient demographics, surgical outcomes, and postoperative complications.

Results

A cohort of 24 patients (18 females, 6 males) with a mean age of 34.13±10.06 years successfully underwent robotic BABA reoperation without conversion to open surgery. Two patients underwent completion total thyroidectomy (CTT) with central neck node dissection (CND), four underwent CTT with lateral neck dissection (LND), and the remaining 18 patients received LND alone. Histopathological examination revealed papillary thyroid carcinoma (PTC) in 23 patients and medullary thyroid carcinoma (MTC) in one patient. The mean number of lymph nodes retrieved from LND was 14.21±12.30, with 2.74±2.64 nodes harboring metastases. Postoperative complications were transient, including hypoparathyroidism in four patients and temporary vocal cord palsy in one patient, with no permanent complications reported. During an average follow-up period of 29.71±19.29 months, no recurrences were detected. Cosmetic satisfaction was assessed and yielded a median satisfaction score of 9.2.

Conclusions

Robotic BABA reoperation emerges as a feasible and safe surgical modality for managing recurrent thyroid cancer, offering effective treatment while catering to patients' high aesthetic demands.

Inferior-to-Superior Dissection for Recurrent Laryngeal Nerve Identification in Redo Thyroid Surgery: Enhanced Safety and Reduced Injuries

Background: Hoarseness due to recurrent laryngeal nerve (RLN) injury is the most feared complication of thyroid surgery. Scars and anatomical changes caused by previous surgeries make finding the RLN during redo thyroid surgeries difficult. We aimed to analyze the results of the inferior-to-superior dissection technique that we applied to find the RLN in redo surgeries. Methods: We analyzed the results of 40 consecutive redo thyroidectomy cases in which the inferior-to-superior nerve dissection technique was used to identify the RLN. We compared this cohort with primary thyroidectomies using a lateral-to-medial approach to determine the reliability of this technique. Results: Most patients were women (80%), and the mean age was 48.1 years. The ASA score was mostly 2. In total, 25% of the patients had a preoperative diagnosis of malignancy. A total of 8 of the patients underwent unilateral surgery and 32 underwent bilateral surgeries. Two patients had previous recurrent laryngeal nerve paralysis (RLNP), but one of them underwent contralateral surgery. Permanent recurrent laryngeal nerve paralysis developed in only 2 of 71 RLNs at risk (2.8%). Complications classified as Clavien-Dindo 3 and above were observed in 12.5% of our patients during the early postoperative period. The transient hypocalcemia rate was 7.5%, and the permanent hypocalcemia rate was 5%. A 2.8% unilateral RLPN rate was detected, but bilateral RLNP was not observed. All of the complications were not observed to be statistically different among those who underwent primary thyroidectomy. Conclusions: The inferior-to-superior nerve dissection approach is a beneficial technique in redo thyroidectomy for preserving RLNP. Surgeons should keep this technique in mind to prevent hoarseness.

Redo Thyroidectomy: Updated Insights

The risk of post-operatory hypothyroidism and hypocalcaemia, along with recurrent laryngeal nerve injury, is lower following a less-than-total thyroidectomy; however, a previously unsuspected carcinoma or a disease progression might be detected after initial surgery, hence indicating re-intervention as mandatory (so-called "redo" surgery) with completion. This decision takes into consideration a multidisciplinary approach, but the surgical technique and the actual approach is entirely based on the skills and availability of the surgical team according to the standard protocols regarding a personalised decision. We aimed to introduce a review of the most recently published data, with respect to redo thyroid surgery. For the basis of the discussion, a novel vignette on point was introduced. This was a narrative review. We searched English-language papers according to the key search terms in different combinations such as "redo" and "thyroid", alternatively "thyroidectomy" and "thyroid surgery", across the PubMed database. Inclusion criteria were original articles. The timeframe of publication was between 1 January 2020 and 20 July 2024. Exclusion criteria were non-English papers, reviews, non-human studies, case reports or case series, exclusive data on parathyroid surgery, and cell line experiments. We identified ten studies across the five-year most recent window of PubMed searches that showed a heterogeneous spectrum of complications and applications of different surgeries with respect to redo interventions during thyroid removal (e.g., recurrent laryngeal nerve monitoring during surgery, other types of incision than cervicotomy, the use of parathyroid fluorescence, bleeding risk, etc.). Most studies addressing novel surgical perspectives focused on robotic-assisted re-intervention, and an expansion of this kind of studies is expected. Further studies and multifactorial models of assessment and risk prediction are necessary to decide, assess, and recommend redo interventions and the most adequate surgical techniques.

Re-do transoral robotic thyroidectomy is feasible: preliminary results of the surgical feasibility and efficacy of completion transoral robotic thyroidectomy: cohort study

BACKGROUND

Transoral robotic thyroidectomy (TORT) has proven to be a safe and effective procedure with favourable surgical and cosmetic outcomes, but its application in completion thyroidectomy procedures remains to be established. In this study, the authors present our experience with completion TORT, assessing its surgical feasibility and efficacy. between February 2017 and August 2023.

METHODS

The authors conducted a retrospective analysis of consecutive patients who underwent completion TORT after an initial TORT procedure between February 2017 and August 2023.

RESULTS

A total of 10 patients (three males and seven females) were included in the study, with a mean age of 42.2±13.5 years. The indications for completion thyroidectomy included five cases of aggressive initial lesions and five cases of metachronous papillary thyroid carcinoma detected in the remnant lobe. The median interval between the initial and completion TORT procedures was 6.5 months. Flap dissection time showed no significant difference between the initial TORT and completion TORT operations (43.3±7.5 vs. 36.2±11.2, P =0.125). However, the mean console time (127.9±42.6 vs. 86.4±26.3 min, P =0.019) and mean total operation time (206.7±65.9 vs. 146.0±34.9 min, P =0.021) were significantly longer during the initial TORT procedure than during the completion TORT procedure. Two patients experienced transient hypoparathyroidism, which resolved within four weeks postoperatively. No other complications, such as vocal cord palsy, mental nerve injury, or bleeding, were observed. The median follow-up period was 21.5 months, and no recurrences were detected in any of the patients.

CONCLUSIONS

Our study demonstrates that re-do TORT is feasible, showing excellent cosmetic results and minimal adverse effects. Completion TORT may be considered a viable option for selected patients who require completion thyroidectomy after an initial TORT procedure.

Bibliometric analysis of research trends and hotspots on robot-assisted thyroid surgery

BACKGROUND

Thyroid surgery involves the partial or complete removal of the thyroid gland and is a frequently performed surgical procedure. The adoption of robots, equipped with flexible and stable operating systems, has garnered acceptance among numerous surgeons for their capability to enable precise anatomical dissection in thyroid surgery. To gain a comprehensive insight into the present research landscape of robot-assisted thyroid surgery, this paper endeavored to conduct a thorough analysis of the field through bibliometric analysis.

METHODS

Relevant literature pertaining to robot-assisted thyroid surgery was retrieved from the Web of Science Core Collection (WOSCC) database, spanning from the inception of WOSCC to October 17, 2022. Visual analyses of publication quantity, distribution across countries/regions, institutions/organizations, authorship, journals, references, and keywords were conducted using Microsoft Excel, the bibliometrix package in R, Citescape, and VOSviewer software.

RESULTS

A total of 505 articles from 406 institutions in 36 countries/regions were included. South Korea emerged with highest number of publications. Notably, Professor CHUNG WY from Yonsei University in South Korea and the journal "Surg Endosc" stood out with the most publications. The current research landscape indicated significant interest in endoscopic thyroidectomy, surgical procedures, and the axillary approach. In addition, transoral robotic thyroidectomy (TROT), and learning curve (LC) were recognized as research frontiers, representing potential future hotspots in this field.

CONCLUSION

This study marks the first bibliometric analysis of the literature on robot-assisted thyroid surgery. The results highlight endoscopic thyroidectomy, surgical procedures, and the axillary approach as current research hotspots, with TROT and LC identified as potential future research hotspots.

Expansion of thyroid surgical territory through 10,000 cases under the da Vinci robotic knife

With the progress of robotic transaxillary thyroid surgery (RTTS), the indications for this procedure have gradually expanded. This study presents the insights gained from performing 10,000 RTTS cases at a single institution, along with the expansion of indications over time. RTTS was performed on 10,000 patients using the da Vinci robot system between October 2007 and April 2023 at the Yonsei University Health System, Seoul, Korea. Among 10,000 patients, 9461 (94.0%) were diagnosed with thyroid cancer, whereas 539 (5.4%) had either a benign thyroid nodule or Graves' disease. Surgical procedures were performed using four-arm-based robots (da Vinci S, Si, or Xi) for 8408 cases (84.1%), with the remaining 1592 cases (15.9%) being performed using the da Vinci SP surgical robotic system. Notably, for 53 patients with nodules ≥ 5 cm, which were not included in the eligibility criteria of the previous study, RTTS was performed safely without significant complications. The most common postoperative complication was transient hypoparathyroidism (37.91%), and recurrence occurred in 100 patients with thyroid cancer (1.1%). In conclusion, RTTS appears safe and feasible from both surgical and oncological perspectives, and the spectrum of indications suitable for RTTS surgery is progressively expanding.

Establishment and implementation of a clinical application and research database for surgical robots in China

Robots are widely used in surgeries worldwide. To improve robotic surgical treatments, we established a database of clinical applications and research on surgical robots. Robotics‐related literature included in the China national knowledge infrastructure (CNKI), Wanfang, Vipshop, Chinese science citation database (CSCD), Web of Science, EMBASE, PubMed, and Cochrane databases up to September 2022 was searched and entered into the database. Information on all patients who had undergone robotic surgery at our hospital since 2016 was also included. Literature and case information was classified and evaluated according to standard guidelines and statements. The Gansu Provincial Hospital was the first to use evidence‐based medical research methods to successfully establish a database of clinical applications and research on surgical robots. This database comprised literature search, upload, quality evaluation, risk of bias assessment, case information entry, and access functions. Based on the database, we conducted related studies in general surgery, gynecology, urology, thoracic surgery, and cardiovascular surgery, and published 16 meta‐analyses and 15 clinical studies. Establishing this database removes language, retrieval, and evaluation barriers in clinicians' use of clinical evidence and lays the foundation for the efficient and accurate use of clinical data for future research. Further, it facilitates evidence‐based evaluation of the effectiveness of robotic therapy, which may guide future medical practice. This typical case of interdisciplinary research aims to build a platform to disseminate knowledge and technology in robotic surgery.

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