A novel robotic surgical technique for thyroid surgery: bilateral axillary approach (BAA)

Comparison of Robotic Versus Conventional Open Thyroidectomy for Recurrent Laryngeal Nerve Safety: A Systematic Review and Meta-Analysis

This review aims to investigate the safety of recurrent laryngeal nerve (RLN) by comparing robotic thyroidectomy (RT) versus open thyroidectomy (OT) in Western and Asian populations. Two main outcomes of this review were (1) the safety of RLN comparing the robotic and OT assessing transient and permanent laryngeal nerve (PLN) palsy as a postoperative complication in each surgical procedure and (2) the safety of RLN comparing the robotic and OT assessing transient and permanent laryngeal nerve (PLN) palsy as a postoperative complication between studies conducted in USA/Europe and Asia. We searched relevant literature in electronic databases such as PubMed, MEDLINE, Cochrane CENTRAL, ScienceDirect, and Cumulative Index to Nursing & Allied Health (CINAHL) up to September 2022. Further research was performed during January 2024 in the Scopus database. Two primary outcomes were set: transient RLN palsy and permanent RLN palsy, comparing RT and OT. In this review, 18 non-randomized studies were included. A statistically significant difference between robotic and conventional OT was not observed either in transient RLN or in permanent RLN palsy. The odds ratio (OR) for the overall comparison of transient RLN palsy was 1.18, and the 95% confidence interval (95% CI) was 0.80-1.74. The subgroup analysis for transient RLN palsy between USA/Europe studies was OR 1.28, and the 95% CI was 0.64-2.58. The subgroup analysis for transient RLN palsy between Asian studies was OR 1.14, and the 95% CI was 0.72-1.82. The OR for the overall comparison of permanent RLN palsy was OR 0.90, and the 95% CI was 0.38-2.15. The subgroup analysis for permanent RLN palsy between USA/Europe studies was OR 0.45, and the 95% CI was 0.07-2.97. The subgroup analysis for permanent RLN palsy between Asian studies was OR 1.13, and the 95% CI was 0.42-3.05. Heterogeneity I2 was 0% in all outcomes. The Mantel-Haenszel method fixed effect was used. First, RT and open conventional thyroidectomy have comparable safety for RLN, although the analysis showed no statistically significant results. Second, no statistically significant results were found for RLN safety in either USA/Europe or Asian studies. Considering that there is not a statistically significant difference between the two approaches for RLN safety, and due to the limited number of studies from Western countries, the results should be considered with caution. Important factors such as the patient's body characteristics, the existing thyroid pathology, and the surgical approach should be kept in mind. More comparable studies are needed on the Western population.

Robotic thyroidectomy using gas-insufflation one-step single-port transaxillary (GOSTA) approach

BACKGROUND

We conducted this study to report our novel robotic thyroidectomy using gas-insufflation one-step single-port transaxillary (GOSTA) approach and compare it with a conventional transaxillary (CTA) approach using a retraction method for intraoperative and postoperative outcomes.

METHODS

We retrospectively analyzed 354 patients who underwent robotic thyroidectomy between January 2019 and April 2023. Of these patients, 143 underwent the procedure through the GOSTA approach, which involves a small incision of 3 cm along the axillary folds with both arms down and a gas-insufflation, from skin flap creation to the completion of thyroidectomy as a one-step single-port procedure without the need for a retractor. The remaining 211 patients underwent the CTA approach. We analyzed the GOSTA approach and compared the surgical outcomes of the GOSTA (n = 100) and CTA (n = 167) approaches in patients with differentiated thyroid cancer who underwent thyroid lobectomy.

RESULTS

Out of the 143 patients who underwent the GOSTA approach, 12 underwent total thyroidectomy and 9 underwent lateral neck lymph node dissection with total thyroidectomy. GOSTA-thyroid lobectomy was performed on 122 patients; of these, 100 were diagnosed with differentiated thyroid carcinoma. A comparative study with the CTA approach was only conducted in patients who underwent thyroid lobectomy. No significant differences were found in operative time, hospital stay, or complications between the two groups.

CONCLUSIONS

Despite proceeding in one-step with a single smaller incision, from skin flap creation to the completion of thyroidectomy, the GOSTA approach is as feasible and safe as the CTA approach. Additionally, the GOSTA approach allows for thyroidectomy without using a retractor and reduces the workload for the surgeon and assistants.

Current therapeutic options for low-risk papillary thyroid carcinoma: A scoping evidence review

Most cases of thyroid carcinoma are classified as low risk. These lesions have been treated with open surgery, remote access thyroidectomy, active surveillance, and percutaneous ablation. However, there is lack of consensus and clear indications for a specific treatment selection. The objective of this study is to review the literature regarding the indications for management selection for low-risk carcinomas. Systematic review exploring inclusion and exclusion criteria used to select patients with low-risk carcinomas for treatment approaches. The search found 69 studies. The inclusion criteria most reported were nodule diameter and histopathological confirmation of the tumor type. The most common exclusions were lymph node metastasis and extra-thyroidal extension. There was significant heterogeneity among inclusion and exclusion criteria according to the analyzed therapeutic approach. Alternative therapeutic approaches in low-risk carcinomas can be cautiously considered. Open thyroidectomy remains the standard treatment against which all other approaches must be compared.

Surgical outcomes of different approaches in robotic assisted thyroidectomy for thyroid cancer: A systematic review and Bayesian network meta-analysis

BACKGROUND

The aim of the study was to assess the feasibility, safety, and potential benefits of four approaches of robotic assisted thyroidectomy (RT). The approaches mentioned above are also compared with traditional open thyroidectomy (OPEN).

MATERIALS AND METHODS

Medline, Embase, Cochrane library (CENTRAL) and Web of Science databases were searched up to 13th Dec 2019. Data of surgical outcomes and complications were extracted to conduct the statistical analyses.

RESULTS

A total of 30 studies with 6622 patients were included. Ten were prospective study and 1 declared prospective randomized comparative study. The number of retrieved lymph nodes (LNs) in central compartment were similar between gasless transaxillary approach (GAA), bilateral axillo-breast approach (BABA) and transoral approach (OA). OPEN retrieved more LNs than BABA and OA. More metastatic LNs were seen in GAA and BABA than OA, as was for OPEN. The operation time was significantly shorter in GAA and gasless unilateral transaxillary approach (GUAA) than BABA and OA, while shortest for OPEN. Lower incidence of transient hypoparathyroidism was found in BABA than OPEN. No significant difference was observed in other indexes.

CONCLUSIONS

BABA, GAA, GUAA and OA in RT appear to be feasible and safe for patients with thyroid cancer with unique benefits. Surgical outcomes of different approaches were not identical for operation time, cosmetic effects, central neck dissection. Surgeons would consider more about patients' will.

Robotic surgery versus open surgery for thyroid neoplasms: a systematic review and meta-analysis

PURPOSE

Robotic surgical system has been gradually applied in thyroid neoplasms as a novel treatment for years, with presenting some superiorities as well as limitations. To compare the effectiveness and safety of robotic surgery with open surgery for the patients with thyroid neoplasms, this review was conducted METHODS: We performed electronic search in CENTRAL, MEDLINE, EMBASE, CNKI, CBM, Opengray, and Sciencepaper Online databases and manual search in specific online databases and according to the reference list of relevant papers to get all the studies that compared the effectiveness and safety of robotic surgery with that of open surgery for patients with thyroid neoplasms. Last update was conducted in March 2020. Randomized-controlled trials, case-control studies, cohort studies, and cross-sectional surveys were all included.

RESULTS

In this review, 59 studies were included: two RCTs, 15 NRSs, 40 cohort studies, and two cross-sectional studies. Robotic surgery was found to be associated with longer operative duration, less retrieved lymph nodes, higher postoperative thyroglobulin before radioactive iodine ablation, similar complication incidence but less blood loss, better functional recovery, and higher cosmetic satisfaction compared to open surgery.

CONCLUSIONS

Robotic surgery is a safe and feasible approach with remarkable superiority in reducing intraoperative damage and improving patients' quality of life compared to open surgery for thyroid neoplasms. Meanwhile, this procedure is also associated with long operative duration, insufficient removal of neck lymph nodes, which need to be given careful consideration.

Thyroidectomy-related Swallowing Difficulties: Review of the Literature

This study aims to provide insight into the etiology and frequency of swallowing complications that arise after thyroidectomy and to outline the available diagnostic procedures by revising the existing literature on this topic. We conducted a bibliographic search using the electronic database MEDLINE/PubMed to identify all relevant articles and 44 studies were included in the review out of a total of 218 published articles. Dysphagia after thyroid surgery is a common postoperative complication which, in the short- or long-term, significantly affects patient life quality. There is no standard diagnostic protocol for thyroidectomy-related swallowing impairment. Among the reviewed studies, 8 questionnaires and 12 instrumental diagnostic tools were used to identify swallowing difficulties related to thyroid surgery. The Swallowing Impairment Index (SIS-6) was the most-used questionnaire. Fiberoptic endoscopy is a standard diagnostic tool performed prior and after thyroid surgery, primarily to identify changes in vocal fold mobility. Although instrumental findings usually reveal non-specific alterations of swallowing; swallowing videofluoroscopy and esophageal manometry can be the most helpful tools in further management of thyroidectomy dysphagia. In patients with thyroidectomy-related swallowing difficulties and suspected laryngopharyngeal reflux, 24-hour MII-pH metry should be performed.

Thyroid cancer surgery - in what direction are we going? A mini-review

The prevalence of thyroid cancer, especially in women, is increasing dramatically. Therefore, patients often undergo thyroidectomy upon diagnosis. However, the cosmetic outcome after surgery is of particular concern for many patients. Thus, minimally invasive procedures for treating thyroid disease have been established in recent decades. Total endoscopic and robotic procedures have been slowly and successively introduced while meeting all oncological criteria. Our analysis of the advantages and disadvantages of scarless surgical procedures suggests that the cosmetic aspects of these surgeries will continue to become more important. This review assesses the recent findings regarding the roles of endoscopic and robotic procedures in thyroid cancer surgery.

Transoral Endoscopic Thyroidectomy: A Systematic Review of the Practice So Far

Background and Objectives

Thyroid disease largely affects young females, but the incidence is also increasing among males. In an effort to avoid the scarring of the neck that is synonymous with conventional thyroidectomy, endoscopic techniques have been developed over the years. The transoral endoscopic approach is the latest of these innovations that promises a scarless surgical outcome. This review evaluates whether this technique is safe and feasible in live patients and outlines the outcomes in published literature so far.

Database

PubMed, Medline, BioMed Central, Cochrane Library, OVID and Web of Science were systematically searched by using a Medical Subject Heading (MeSH)-optimized search strategy. The selection of papers followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines after setting strict inclusion and exclusion criteria. Sixteen studies were included in the final analysis.

Discussion

This systematic review presents cases of 785 patients. Surgeons in 15 of the studies used a completely vestibular approach, whereas those in the remaining 2 used the floor of the mouth for primary access. Conversion to open surgery took place in 1.3%. In total, 4.3% of patients experienced transient laryngeal nerve palsy, whereas 0.1% had permanent recurrent incidences of the condition. Transient hypocalcemia occurred in 7.4% of cases, with no recorded permanent cases. Carbon dioxide embolism occurred in 0.6% of cases, and another 0.6% had a deep-seated neck infection. The complication rates within the review were deemed acceptable and the overall technique feasible. A prospective randomized controlled trial was proposed to compare this technique with conventional thyroidectomy.

Robotic thyroidectomy versus conventional open thyroidectomy for thyroid cancer: a systematic review and meta-analysis

BACKGROUND

Despite the new technical alternative offered by the robotic surgery for minimally invasive thyroid surgery, the role of the robotic thyroidectomy (RT) in thyroid cancer has been highly disputed. This paper gives a systematic review and meta-analysis aiming to compare RT and open thyroidectomy (OT) based on the surgical outcomes and oncologic results.

METHODS

Relevant literature was searched from various databases up to July 2016, including PubMed, MEDLINE, EMBASE, Cochrane Library, Web of science and Clinical Trials. gov. Outcomes of interest included patient characteristics, surgical outcomes, adverse events and complications, recurrence rate, and surgical completeness.

RESULTS

The systematic review and meta-analysis were based on the 5200 cases selected from the twenty-three publications. RT was associated with an equivalent adverse event and complication rate including transient hypocalcemia, permanent hypocalcemia, transient hoarseness, permanent recurrent laryngeal nerve (RLN) palsy, transient hypoparathyroidism, permanent hypoparathyroidism, hematoma, postoperative bleeding, seroma, chyle leakage, the Voice Handicap Index-10 (VHI-10) score, as well as equivalent surgical completeness including postoperative radioactive iodine (RAI) ablation rate, number of RAI ablation sessions, mean total RAI ablation dose, mean stimulated Tg of postoperation RAI, and proportion of stimulated Tg < 1.0 ng/ml on first ablation. Moreover, RT had lesser blood loss (WMD - 1.47, p = 0.04), smaller number of retrieved lymph nodes (WMD - 1.21, p = 0.0002), a low level of swallowing impairment (WMD - 4.17, p < 0.00001), and better cosmetic satisfaction (OR 4.05, p < 0.00001). However, OT was associated with shorter operation time (WMD 69.80, p < 0.00001), less total drain amount (WMD 66.53, p < 0.0001), and lower postoperative serum Tg level (WMD 0.21, p < 0.00001).

CONCLUSIONS

RT is as safe as OT for the treatment of thyroid cancer. Based on the long-time follow-up and surgical completeness, the adverse events and complications, and recurrence rate of RT were comparable with OT. RT was associated with a significantly lesser blood loss, smaller number of retrieved lymph nodes, a lower level of swallowing impairment, and better cosmetic satisfaction. In contrast, OT was associated with shorter operation time, smaller total drain amount, and lower postoperative serum Tg level. Overall, randomized clinical trials and larger patient cohort with long-term follow-up are still essential to further demonstrate the value of the robotic approach.