Perioperative outcomes of robotic surgery for the treatment of lung cancer compared to a conventional video-assisted thoracoscopic surgery (VATS) technique

The Increasing Adoption of Minimally Invasive Lobectomy in the United States

BACKGROUND

The objective of this study is to evaluate the trends of and outcomes associated with the use of minimally invasive lobectomy for stage I and II non-small cell lung cancer (NSCLC) in the United States.

METHODS

The use of and outcomes associated with open and minimally invasive lobectomy for clinical stage I and stage II NSCLC from 2010 to 2017 in the National Cancer Database were assessed by multivariable logistic regression and propensity score matching.

RESULTS

From 2010 to 2017, use of minimally invasive lobectomies increased for stage I NSCLC (multivariable-adjusted odds ratio [aOR] 4.52; 95% CI, 3.95-5.18; P < .001) and stage II NSCLC (aOR 4.38; 95% CI, 3.38-5.68; P < .001). In 2015, for the first time, more lobectomies for stage I NSCLC were performed by minimally invasive techniques (52.2%, n = 5647) than by thoracotomy (47.8%, n = 5164); and in 2017, more lobectomies for stage II NSCLC were performed by minimally invasive techniques (54.7%, n = 1620) than by thoracotomy (45.3%, n = 1,342). From 2010 to 2017, the conversion rates from minimally invasive to open lobectomy for stage I NSCLC decreased from 19.6% (n = 466) to 7.2% (n = 521; aOR 0.32; 95% CI, 0.23-0.43; P < .001). Similarly, from 2010 to 2017, the conversion rates from minimally invasive to open lobectomy for stage II NSCLC decreased from 20% (n = 114) to 11.5% (n = 186; aOR 0.39; 95% CI, 0.21-0.72; P = .002).

CONCLUSIONS

In the United States, for stage I and stage II NSCLC from 2010 to 2017, the use of minimally invasive lobectomy significantly increased while the conversion rate significantly decreased. By 2017, the minimally invasive approach had become the predominant approach for both stage I and stage II NSCLC.

Effects of epidural block anesthesia combined with general anesthesia on inflammatory factors, cognitive function and postoperative pain in patients with lung cancer after thoracoscopic surgery

OBJECTIVE

To investigate the effects of epidural block anesthesia combined with general anesthesia on inflammatory factors, cognitive function and postoperative pain in patients with lung cancer after thoracoscopic surgery.

METHODS

A total of 144 lung cancer patients admitted to the Department of Cardiothoracic Surgery of Ganzi Tibetan Autonomous Prefecture People's Hospital from October 2017 to October 2019 were included in this retrospective cohort study. The patients were divided into an observation group and a control group, with 72 cases in each group. Observation group was treated with epidural block anesthesia plus general anesthesia under thoracoscopic surgery, while control group was treated with general anesthesia alone. General information of both groups was compared. Tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) levels were measured by enzyme-linked immunosorbent assay before anesthesia (T0), before the end of operation (T1), 12 h after operation (T2) and 24 h after operation (T3). Calcium-binding protein (S-100β) content, mini-mental state examination (MMSE) and Montreal cognitive assessment (MoCA) at T0, T3, the 3rd day after operation (T4), and the 5th day after operation (T5) were measured. And postoperative pain was recorded.

RESULTS

There were no significant differences in TNF-α, IL-6, MMSE and MoCA between the two groups at T0, and no significant differences were seen in S-100β between the two groups at T0 and T1 (all P>0.05). Compared with control group, observation group had lower TNF-α and IL-6 at T1, T2, T3, T4 and T5, and lower S-100β at T3, T4 and T5 (all P<0.001). Lower pain scores and higher MMSE and MoCA were found in the observation group at T3, T4 and T5 (all P<0.05).

CONCLUSION

Epidural block anesthesia combined with general anesthesia can effectively reduce levels of inflammatory factors, cognitive disorder and postoperative pain in patients with lung cancer after thoracoscopic surgery.

Robotic video-assisted thoracoscopic surgery using multiport triangular trocar configuration: initial experience at a single center

Background

Recent developments in robotic technology have brought significant changes in robotic video-assisted thoracoscopic surgery (r-VATS) worldwide, particularly including the treatment in the thorax for the mediastinal, esophagus, and pulmonary lesions. Currently, there are only a few reports describing the procedural experience and outcomes with r-VATS. The objective of this study is to provide our initial experience using r-VATS at a single center, with specific attention to safety, efficacy, and procedural details.

Methods

We retrospectively reviewed patients who underwent a newly modified r-VATS procedure for various surgical operations at the thoracic department of our hospital, from July 2018 to January 2020. Multiport trocars were placed in the classic triangular arrangement as in conventional VATS (c-VATS) but with modifications based on the type of surgery. The peri- and postoperative outcomes such as duration of surgery, complications, and duration of hospital stay for these patients were reported.

Results

Overall, 142 patients underwent r-VATS for lobectomy (66), wedge resection (15), thymectomy (22), mediastinal tumor resection (30), pneumonectomy (4), transthoracic esophagectomy (1), esophageal tumor resection or esophageal diverticulum repair (2), diaphragm plication (1), and mediastinal tumor resection plus thymectomy (1). For the entire cohort, the median operative time was 110 min, and the median length of hospital stay was 5 days. Conversion to open thoracic surgery was reported only in a total of 3 (2.1%) patients of pneumonectomy (1.4%) and mediastinal tumor resection (0.70%). All our patients were managed successfully with no postoperative complications and mortality.

Conclusion

Our method of r-VATS was found to be safe and effective and may be applied to different surgical operations. Adequate and proper training of thoracic surgeons is immediately needed for the transition from c-VATS to r-VATS. The utility and advantages of triangular trocar configuration for r-VATS require further refinement and research before it can be routinely adopted in clinical practice.

Trial registration

Retrospectively registered.

Perioperative outcomes of robot-assisted vs video-assisted and traditional open thoracic surgery for lung cancer: A systematic review and network meta-analysis

BACKGROUND

The superiority of robot-assisted thoracic surgery (RATS) over video-assisted thoracic surgery (VATS) and thoracotomy remains controversial for lung cancer.

METHODS

A network meta-analysis (NMA) and pairwise meta-analysis (PMA) were performed to evaluate the perioperative outcomes using five databases.

RESULTS

Thirty-two studies involving 6593 patients were included for analysis. The NMA showed that RATS had similar operative time, conversion rate to thoracotomy, number of lymph node, postoperative morbidity, and length of hospital stay with VATS, except for lower 30-day mortality. Compared with thoracotomy, longer operative time and shorter hospital stay were observed in RATS, but no significant difference was observed in number of lymph node, postoperative morbidity, and 30-day mortality in both NMA and PMA. In lobectomy/segmentectomy subgroup, all outcomes, except for operative time of RATS vs VATS and number of lymph node, were similar with overall analyses.

CONCLUSIONS

RATS had comparable perioperative outcomes with VATS and open surgery.

A systematic review and meta-analysis of robotic versus open and video-assisted thoracoscopic surgery approaches for lobectomy

OBJECTIVES

A number of meta-analytical and database studies have sought to compare open, video-assisted thoracoscopic surgery (VATS) and robotic operative approaches to lobectomy, often with conflicting results. Our objective was to perform a comprehensive review of these meta-analytical and database studies published to date.

METHODS

A systematic review was conducted in accordance with the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines using the PubMed and Scopus databases. Primary outcome was short-term mortality, and secondary outcomes were operative time, blood loss or transfusion rate, hospital stay, conversions, lymph node yield and complications. Meta-analyses of the primary and secondary outcomes were performed.

RESULTS

Robotic lobectomy is a valid alternative to the VATS approach and is superior to the open approach with respect to complications [OR 0.67, 95% CI 0.58-0.76, P  < 0.00001] and duration of hospital stay (WMD -1.4, 95% CI -1.96-0.85, P < 0.00001). It is inferior to both VATS and open with respect to operative duration (robotic vs. VATS; WMD 4.98, 95% CI 2.61-7.36, P < 0.001, robotic vs. open WMD 65.56, 95% CI 53.66-77.46, P < 0.00001). Robotic approach is superior with respect to 30-day mortality compared to VATS (OR 0.61, 95% CI 0.45-0.83, P = 0.001 and open approaches (OR 0.53, 95% CI 0.33-0.85, P = 0.008).

CONCLUSIONS

This is the largest published systematic review and meta-analysis to date qualifying the robotic lobectomy as a reasonable alternative to VATS and open surgery. Short-term survival is superior in the robotic cohorts. No definitive conclusions on long-term outcomes can be drawn until a randomized controlled trial comparing approaches is conducted.