Qualified Surgeons Research Articles

Usefulness of participation of endoscopic surgical skill qualification system-qualified surgeons in laparoscopic high anterior resection.

A technical qualification system was established by the Japanese Society of Endoscopic Surgery in 2004, and its effectiveness in low anterior resection (LAR) has been reported. We herein performed a subgroup analysis of the effectiveness of the participation of technically qualified surgeons in laparoscopy-assisted high anterior resection (HAR), a procedure used for the technical qualification of surgeons. The EnSSURE study enrolled 3188 patients who underwent laparoscopic rectal resection for rectal cancer between January 2014 and December 2016 at 56 Japanese hospitals. The outcomes of HAR were compared between groups with and without the participation of technically qualified surgeons. The background of the two groups were equalized by propensity score matching. In the group with the participation of qualified surgeons, the operative time was significantly shorter (p = .0427), more lymph nodes were dissected (p = .0207), and the conversion rate to open surgery was lower (p = .0016); however, no significant difference was observed in blood loss (p = .0616), the R0 resection rate (p = 1.00), intraoperative complication rate (p = .160), postoperative complication rate (p = 1.00), or reoperation rate (p = .6999) between the two groups. Furthermore, no significant difference was noted in long-term outcomes (recurrence-free survival (p = .275) or overall survival (p = .941)). In HAR, the technical benefits of the participation of qualified surgeons was limited to a shorter operative time and lower conversion rate. Nevertheless, the qualification is unique in that it predicts the usefulness of reducing complications in more technically challenging procedures when its effectiveness in LAR is considered.

Practice guidelines on endoscopic surgery for qualified surgeons by the endoscopic surgical skill qualification system: Esophagus.

Practice guidelines on endoscopic surgery for qualified surgeons by the endoscopic surgical skill qualification system: Esophagus.

Practice guidelines on endoscopic surgery for qualified surgeons by the endoscopic surgical skill qualification system: Stomach.

Practice guidelines on endoscopic surgery for qualified surgeons by the endoscopic surgical skill qualification system: Stomach.

Practice guidelines on endoscopic surgery for qualified surgeons by the Endoscopic Surgical Skill Qualification System: Pancreas.

Practice guidelines on endoscopic surgery for qualified surgeons by the Endoscopic Surgical Skill Qualification System: Pancreas.

Comparative study on three-dimensional versus two-dimensional imaging using a computer-assisted surgery system for preoperative planning in pediatric middle hepatic tumors

BackgroudThe study objective was to compare three-dimensional and two-dimensional imaging using computer-assisted systems (CASs) in clinical guidance for preoperative surgical planning for middle hepatic tumors in children.MethodsA retrospective analysis was performed on 23 children who underwent surgery for middle hepatic tumors in our hospital from January 2016 to June 2022. The surgical resection plan was formulated by the operator team using two-dimensional CT images before the operation. Then, the same qualified surgeons conducted an in-depth analysis and formulated the surgical resection scheme for the same pediatric patient using three-dimensional imaging of the middle hepatic tumor. The feasibility of the two schemes was compared and analyzed.ResultAll the tumors were successfully removed according to the preoperative method developed using three-dimensional imaging. The postoperative short-term follow-up revealed that all patients were doing well. Preoperative plans were revised in 9 cases after evaluating the three-dimensional images due to the disparity between the original plans and the three-dimensional relationship between the tumor and blood vessels, vascular variation, and the volume of remnant liver.ConclusionsThree-dimensional imaging with a computer-assisted surgery system is superior to two-dimensional imaging in the preoperative planning of pediatric hepatoblastoma.

A Parallel Robot With Remote Centre-of-Motion for Eye Surgery: Design, Kinematics, Prototype, and Experiments.

Millions of patients suffering from eye disease cannot receive proper treatment due to the lack of qualified surgeons. Medical robots have the potential to solve this problem and have attracted significant attention in the research community. This paper proposes a novel parallel robot with a remote centre of motion for minimally invasive eye surgery. Kinematics models, singularity and workspace analyses, and dimension optimisation are conducted. A prototype was developed, and experiments were conducted to test its mobility, accuracy, precision and stiffness. The prototype robot can successfully perform the required motions, and has a precision ranging from 7±2μm to 30±8μm, accuracy from 21±10μm to 568±374μm, and stiffness ranging from 1.22±0.39N/mm to 10.53±5.18N/mm. The prototype robot has a great potential for performing the minimally invasive surgery. Its stiffness meets the design requirement, but its accuracy and precision need to be further improved.

Practice guidelines on endoscopic surgery for qualified surgeons by the endoscopic surgical skill qualification system: Hernia.

Practice guidelines on endoscopic surgery for qualified surgeons by the endoscopic surgical skill qualification system: Hernia.

Practice guidelines on endoscopic surgery for qualified surgeons by the endoscopic surgical skill qualification system: Large intestine.

Practice guidelines on endoscopic surgery for qualified surgeons by the endoscopic surgical skill qualification system: Large intestine.

Balloon atrial septostomy: a weapon to challenge right heart failure after cardiac surgery

Right heart failure is a common complication after cardiac surgery, and its mortality remains high. The medical management and veno-arterial extracorporeal membrane oxygenation has shown significant improvement in the majority of cases. However, a minority of patients may still require long-term mechanical circulatory support or heart transplantation. Balloon atrial septostomy is a new method for the prevention and treatment of right heart failure, which may avoid the patient’s dependence on mechanical circulatory support. We used this method to try to treat patients with right heart failure after cardiac surgery, and all received good benefits. Therefore, we selected several representative cases to report, in order to guide other qualified cardiac surgeons to carry out relevant clinical practice.

Practice guidelines on endoscopic surgery for qualified surgeons by the endoscopic surgical skill qualification system: Introduction.

Practice guidelines on endoscopic surgery for qualified surgeons by the endoscopic surgical skill qualification system: Introduction.

Utilization and Cost of Gender-affirming Surgery in the United States from 2012-2019.

To characterize the trends in and characteristics associated with the utilization and cost of gender-affirming surgery (GAS) in the United States from 2012-2019. GAS is one option among gender-diverse (GD) people to transition from their biologic anatomy to the anatomy congruent with their gender. Little is known about its utilization and cost trends and whether patient and hospital characteristics are associated with differences in utilization and cost. This serial cross-sectional study collected retrospective data from the Healthcare Cost and Utilization Project (HCUP) National Inpatient Sample (NIS), a representative pool of inpatient visits in the United States. Records from 2012-2019 that indicated ages 18 or older, GD diagnoses, and GAS procedures were identified using the International Classification of Diseases, Ninth and Tenth Revisions. Within this cohort, demographics, utilization, and cost were collected and analyzed using descriptive statistics and multivariable regression models. 6,325 records with GD diagnoses and GAS procedures were identified. From 2012-2019, utilization increased by more than 5-fold (0.9 to 5.0 per 100,000 records among all records), and the mean, inflation-adjusted cost increased by 36% ($19,451 to $26,517). This cost trend was similar by type of surgery, and genital surgery had consistently higher costs than chest surgery from 2012 to 2019 (genital: $21,487 to $26,712, chest: $13,238 to $21,309). Lower odds of utilization were found in records with Medicaid (OR = 0.27, 95% CI [0.22-0.35], P<0.001) and Medicare (OR = 0.15, 95% CI [0.11-0.23], P<0.001) compared to private insurance, as well as those in the lowest income quartile (OR = 0.68, 95% CI [0.54-0.85], P<0.001) compared to the highest quartile. Lower costs were found in records that indicated hospital location in the Midwest (27% lower, 95% CI [0.61-0.87], P<0.001), Northeast (34% lower, 95% CI [0.55-0.80], P<0.001) and South (39% lower, 95% CI [0.53-0.71], P<0.001) compared to the West. As demand for GAS increases with varying utilization and costs based on patient and hospital characteristics, there will likely be a need for more qualified surgeons, increased insurance coverage, and policies to ensure equitable access to GAS.

Abstract CT031: A pilot clinical trial of neoadjuvant modified FOLFIRINOX plus nivolumab in borderline resectable pancreas cancer

Abstract Background: Combinations of chemotherapy and checkpoint inhibitors have failed to show improvements in pancreas cancer (PC) but all studies reported to date have been in the metastatic setting. Perioperative strategies of PD1 inhibitor combinations have shown promise in many malignancies. The A021501 trial established modified FOLFIRINOX (mFFX) as a reference neoadjuvant regimen for patients (pts) with borderline resectable pancreas cancer (BRPC). Here, we present clinical and pathologic results from a phase 1/2 investigator-initiated study investigating the safety and efficacy of mFFX and Nivolumab in pts with BRPC. Methods: Pts with ECOG PS 0-1 and BRPC confirmed by qualified surgeons were treated with a maximum of 6 cycles of mFFX (oxaliplatin 85 mg/m2, irinotecan 150 mg/m2, leucovorin 400 mg/m2 and infusional 5-fluorouracil 2400 mg/m2 over 46 hours) on days 1 and 15 of a 28-day cycle and Nivolumab (480 mg Iv q 4 weeks). The primary endpoint was safety (including post-operative fistula formation) and pathologic response to neoadjuvant therapy. Secondary endpoints included progression-free survival (PFS), overall response rate (ORR) and overall survival (OS). RNA sequencing was performed on 16 post-treatment resected tumors, 5 patient-matched diagnostic pre-treatment biopsies, and 9 resected tumors from non-trial patients treated with mFFX alone. Results: Overall, 28 pts (median age 68, M: 16, F, 12) were enrolled. 26 (93%) pts completed at least 3 cycles of mFFX and Nivo and 24 (86%) pts underwent surgery (23 R0/1R1). There were no grade 2 post-operative fistulas observed and the rates of grade 3 or higher adverse events was 55% with all being related to mFFX and none attributed to nivolumab. At a median follow-up of 24 months, the median PFS was 34.8 months, and the median OS was 35.1 months. Among pts who underwent pancreatectomy, the 18-month OS rate was 90%. There were 2 pathologic complete responses and 2 near complete responses. Compared to pre-treatment biopsies, RNA sequencing from resected specimens revealed higher CD8 (P=0.018) and Granzyme A (P=0.024) expression. In patients with pathologically node negative disease (n=11), elevated Granzyme A expression was associated with significantly improved PFS (P=0.046). Adenosine-related gene expression increased in 50% (n=8) of post-treatment samples (P&amp;lt;0.022) and correlated with expression of adenosine-generating CD73 (P=0.008). Conclusions: Neoadjuvant mFOLFIRINOX and Nivolumab was associated with favorable rates of R0 resection, PFS and OS relative to historical data in patients with BRPC in this pilot trial. The addition of Nivolumab did not increase rates of G3 AE’s and there were no unexpected safety signals. The addition of Nivolumab to neoadjuvant FOLFIRINOX may benefit some patients by enhancing cytolytic T cell function and decreasing immunosuppressive adenosine. This is the first trial reported with a PD1 inhibitor in neoadjuvant pancreas cancer and a Phase II trial is ongoing. Citation Format: Zev A. Wainberg, Jason Link, David Dawson, Lee Rosen, Stephen Kim, Mark Girgis, Jon King, Joe Hines, Saeed Sadeghi, Olga Olevsky, Deborah J. Wong, Harsimran Multani, Jenna Davis, Lisa Yonemoto, Ann Marie Siney, Christine Kivork, Chi-Hong Tseng, Timothy Donahue. A pilot clinical trial of neoadjuvant modified FOLFIRINOX plus nivolumab in borderline resectable pancreas cancer [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2024; Part 2 (Late-Breaking, Clinical Trial, and Invited Abstracts); 2024 Apr 5-10; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2024;84(7_Suppl):Abstract nr CT031.

Evaluation of the advantage of surgeons certified by the endoscopic surgical skill qualification system participating in laparoscopic low anterior rectal resection.

A technical qualification system was developed in 2004 by the Japan Society for Endoscopic Surgery. An analysis of the EnSSURE study on 3188 stage II-III rectal cancer patients, which was performed by including the participation of qualified surgeons as assistants and advisers without restricting their participation as operators, revealed that the participation of technically qualified surgeons in surgery improved the technical and oncological safety of laparoscopic rectal resection. This secondary retrospective analysis of the EnSSURE study examined the advantage of qualified surgeons participating in laparoscopic low anterior resection (LAR). The outcomes of low anterior resection were compared between groups with and without the participation of surgeons qualified by the Endoscopic Surgical Skill Qualification System (Q and non-Q groups, respectively). We used propensity score matching to generate paired cohorts at a one-to-one ratio. The postoperative complication rate, short-term results (hemorrhage volume, operative time, number of dissected lymph nodes, open conversion rate, intraoperative complication rate, and R0 resection rate), and long-term results (disease-free survival rate, local recurrence rate, and overall survival rate) were evaluated. The frequencies of postoperative complications, anastomotic bleeding, and intraperitoneal abscess were significantly lower, the operative time was significantly shorter, the postoperative hospital stay was significantly shorter, and the number of dissected lymph nodes was higher in the Q group. No significant differences were observed in disease-free survival, local recurrence, or overall survival rate rates between the groups. The participation of qualified surgeons in LAR is technically advantageous.

Facial aesthetic surgery: Enhancing beauty through maxillofacial procedures

Facial aesthetic surgery aims to restore or improve facial harmony by addressing specific concerns and enhancing desirable features. This article explores the importance of facial harmony in our perception of beauty and attractiveness, highlighting the impact it has on an individual's self-esteem and confidence. Common surgical procedures such as rhinoplasty, genioplasty, blepharoplasty, facelifts, and lip augmentation are discussed, emphasizing their ability to enhance facial harmony and proportions. The article also examines recent technological advancements in facial aesthetic surgery, including minimally invasive techniques, computer-assisted surgical planning, and 3D imaging, which contribute to more precise outcomes. Considerations and potential risks associated with facial aesthetic surgery are addressed, emphasizing the importance of qualified surgeons, thorough evaluation, and open communication. The conclusion highlights the evolution of facial aesthetic surgery, its ability to enhance natural beauty, and its growing significance in the field of oral and maxillofacial surgery.

The effectiveness of surgical treatment of lung cancer in Polish academic and nonacademic centers.

The theoretical advantage of academic hospitals over nonacademic are: more qualified surgeons, adequate diagnostic facilities and infrastructure, including intensive care units. The aim of the study was to compare the effectiveness of surgical lung cancer treatment in academic (ACA) and nonacademic (non-ACA) centers. This was a retrospective analysis of data from 31,777 patients surgically-treated for lung cancer during the period from 2007 to 2020 in 9 ACA and 21 non-ACA centers. The analysis considered the clinical data of patients, the effectiveness of preoperative diagnostics, the type of procedures performed, the complications, the postoperative mortality and the long-term survival. The median number of anatomical lung resection procedures was 1,218 for ACA and 550 for non-ACA centers. In the ACA group, resection using the video-assisted thoracic surgery (VATS) technique was performed significantly more often than in the non-ACA group (23.6% vs. 14.2%, P<0.001). The pN feature analysis showed significantly lower proportions of pNX (9.2%) in the ACA group than those in the non-ACA group (17.1%) (P<0.001). The rates of postoperative complications in the ACA and non-ACA groups were 30.7% and 33.8%, respectively (P<0.001). There were no significant differences in 5-year survival between the ACA and non-ACA groups (56% and 56%, respectively) (P=0.2). The present study showed that ACA centers are characterized by better preoperative diagnostics, a higher percentage of VATS lobectomies, a lower percentage of postoperative complications and a shorter hospitalization period than non-ACA centers, but there was no impact on 5-year survival.

Retrospective analysis of operative time and time to discharge for laparoscopic vs robotic approaches to appendectomy and cholecystectomy.

Robotic-assisted appendectomies and cholecystectomies are believed to increase cost compared to the gold standard laparoscopic approach. Two equally qualified surgeons performed both approaches over 2 years to evaluate intraoperative duration, time to discharge, conversion to open procedure, and readmission within 30days. 110 laparoscopic, 81 robotic-assisted appendectomies; and 105 laparoscopic and 165 robotic-assisted cholecystectomies were performed. Intraoperative time; laparoscopic appendectomy was 1.402 vs 1.3615h for robotic-assisted (P value = 0.304); laparoscopic cholecystectomy was 1.692 vs 1.634h for robotic-assisted (P value = 0.196). Time to discharge, was 38.26 forlaparoscopic vs 28.349h for robotic-assisted appendectomy (P value = 0.010), and 35.95 for laparoscopic vs 28.46h for robotic-assisted cholecystectomy (P value = 0.002). Intraoperative conversion to open; only laparoscopic procedures were converted,one appendectomy and nine cholecystectomies. None in therobotic-assisted procedures. Readmissions, none in the appendectomy group and three in the cholecystectomy group. One laparoscopic and two robotic-assisted cholecystectomy patients were readmitted. Intraoperative times for robotic appendectomy and cholecystectomy were notlonger thanlaparoscopic approach. Robotic approach shortened the time to discharge and the likelihood for conversion to open procedure.

Suture and glue-free autologous graft for pterygium surgery

Of various techniques of pteryium surgeries to prevent recurrence, conjunctival limbal auto graft has been the most successful adjuvant since the studies have shown the role of limbal stem cell deficiency (LSCD) as pathology of pterygium. The most common method of auto-graft fixation post pterygium excision is suturing; with drawbacks of prolonged operating time and postoperative discomfort. Replacing sutures with tissue adhesives may shorten the operating time, improve postoperative comfort; however, the major concern of the commercial fibrin glue is the cost and the potential risk of transmission of infection.To study, 1. The efficacy and complications of suture free and glue free conjunctival-limbal auto-graft for the management of pterygia, 2. The outcome of surgeries by two different qualified surgeons Prospective, interventional case study of 108 consecutive cases of pterygia that had excision with conjunctival-limbal auto-grafting without using glue or sutures. The operated eye patched for a day and followed up on day 1, 3 and 7, 6 weeks and 6 months; watched for hemorrhage beneath the graft, graft retraction, chemosis, recurrence or any other complication. The mean age of the patients was 40.7 years (range, 25 – 68 years) with female preponderance (60.2%) and nasal pterygia in 65.7 %. Not a single graft was dislodged and none had recurrence in the follow up period of 9-20 months. Graft retraction occurred in 7 cases (6.5%) and one patient had sub-graft hemorrhage which lasted for nine days. 76.9% had no discomfort even in immediate post-operative period. The results were comparable among patients of both the surgeons.Suture- and glue-freelimbal conjunctival auto-grafting following pterygium excision is a safe, effective and economical option for the management of both primary and recurrent pterygium. Learning curve is short and consistently similar results possible in different hands.

Five-Year Survival Outcomes of Laparoscopy-Assisted vs Open Distal Gastrectomy for Advanced Gastric Cancer

Evidence of implementation of laparoscopic gastrectomy for locally advanced gastric cancer is currently insufficient, as the primary end point in previous prospective studies was evaluated at a median follow-up time of 3 years. More robust evidence is necessary to verify noninferiority of laparoscopic gastrectomy. To compare 5-year survival outcomes between laparoscopy-assisted distal gastrectomy (LADG) and open distal gastrectomy (ODG) with D2 lymph node dissection for locally advanced gastric cancer. This was a multicenter, open-label, noninferiority, prospective randomized clinical trial. Between November 26, 2009, and July 29, 2016, eligible patients with histologically proven gastric carcinoma from 37 institutes in Japan were enrolled. Two interim analyses and final analysis were performed in October 2014, May 2018, and November 2021, respectively. Patients were randomly assigned (1:1) to either the ODG or LADG group. The procedures were performed exclusively by qualified surgeons. The primary end point was 5-year relapse-free survival, and the noninferiority margin for the hazard ratio (HR) was set at 1.31. The secondary end points were 5-year overall survival and safety. A total of 502 patients were included in the full-analysis set: 254 (50.6%) in the ODG group and 248 (49.4%) in the LADG group. Patients in the ODG group had a median (IQR) age of 67 (33-80) years and included 168 males (66.1%). Patients in the LADG group had a median (IQR) age of 64 (34-80) years and included 169 males (68.1%). No significant differences were observed in severe postoperative complications between the 2 groups in the safety analysis (ODG, 4.7% [11 of 233] vs LADG, 3.5% [8 of 227]; P = .64). The median (IQR) follow-up for all patients after randomization was 67.9 (60.3-92.0) months. The 5-year relapse-free survival was 73.9% (95% CI, 68.7%-79.5%) and 75.7% (95% CI, 70.5%-81.2%) for the ODG and LADG groups, respectively, and the HR was 0.96 (90% CI, 0.72-1.26; noninferiority 1-sided P = .03). Further, no significant difference was observed in overall survival time between the 2 groups, and the HR was 0.83 (95% CI, 0.57-1.21; P = .34). The pattern of recurrence was similar between the 2 groups. Results of this study show that on the basis of 5-year follow-up data, LADG with D2 lymph node dissection for locally advanced gastric cancer, when performed by qualified surgeons, was proved noninferior to ODG. This laparoscopic approach could become a standard treatment for locally advanced gastric cancer. UMIN Clinical Trial Registry: UMIN000003420.

Comment on: Intracorporeal Versus Extracorporeal Anastomosis in Robotic Right Colectomy: A Multicenter, Triple-Blind, Randomized Clinical Trial.

We would like to thank Dohrn et al1 for their randomized controlled trial comparing intracorporeal anastomosis (ICA) with specimen extraction through a Pfannenstiel incision with extracorporeal anastomosis (ECA) with specimen extraction through a transverse right upper quadrant incision in patients undergoing robotic right hemicolectomy (rRHC). The authors state that the main advantage of ICA during rRHC is that it allows for specimen extraction through a Pfannenstiel incision with, as a corollary, reduced postoperative pain and therefore improved postoperative recovery. To this end, they performed a sample size calculation based on the “Quality of Recovery-15” (QoR-15) questionnaire, which is a patient-reported composite outcome. Unfortunately, the trial was not powered on the semiquantitative assessment of postoperative pain or on any objective measurement of postoperative recovery. Second, the main advantage of the robotic approach for RHC is the improved possibility of performing ICA and choosing a Pfannenstiel incision as the extraction site when compared to laparoscopy. Performing ECA during rRHC offers, to our opinion, absolutely no advantage over ICA, and we therefore question the pertinence of the comparison chosen by the authors, especially when considering the increased cost of the robotic approach. A Pfannenstiel incision is more discreet that a right upper quadrant incision, and is esthetically preferred by patients. On this aspect, we note that the esthetical scoring of the extraction site was not considered in the outcomes and was not included in the QoR-15 questionnaire. Moreover, Pfannenstiel incisions have lower incidence of incisional hernia than transverse right upper quadrant incisions (0.9% vs 3.7%),2 which may support ICA over ECA from both a medical point of view but also an economical point of view. This outcome was not assessed in the trial. Finally, we note that a significant proportion of eligible patients were not randomized and that recruitment was paused during 1 year due to the unavailability of qualified surgeons. However, no threshold of experience was set. We believe it would have been preferable to set a threshold in terms of experience, or to audit the surgical procedures as performed for example in the robotic versus laparoscopic surgery for middle and low rectal cancer trial.3 For instance, it was shown that the results of the Robotic-Assisted versus conventional Laparoscopic surgery on risk of conversion to open laparotomy Among patients undergoing Resection for Rectal cancer trial4 were potentially biased by the experience of participating surgeons.5,6 To conclude, we believe that, despite the results of this randomized controlled trial, ICA should be preferred over ECA during rRHC. ACKNOWLEDGMENTS J.M. conceived and designed the study. All authors interpreted the data and contributed to the writing of the draft manuscript. All authors approved the final version of the manuscript.

Assessment of the effectiveness of surgical resections following tyrosine kinase inhibitor therapy in patients with EGFR-mutated stage III–IV lung adenocarcinoma

Objective. To assess the overall and disease-free survival rates in patients with EGFR-mutated lung adenocarcinoma, who underwent surgery after achieving the objective response to tyrosine kinase inhibitor (TKI) therapy.Material and Methods. The overall and disease-free survival rates were analyzed in 18 patients with EGFR-positive lung adenocarcinoma, which was inoperable at presentation due to locally advanced disease or the evidence of distant metastasis. In accordance with the clinical standards, patients were recommended for TKI therapy. Surgical resection was performed after achieving the objective tumor response to TKI therapy. The control group included 23 patients with EGFR mutation-positive lung adenocarcinoma, who did not undergo surgery after receiving TKI therapy.Results. The study revealed a statistically significant effect of surgical resection on the overall survival (OS) in patients with EGFR mutation-positive stage III–IV lung adenocarcinoma after response to TKI therapy (p=0.004). However, there was no statistically significant effect on the disease-free survival (DFS) (p=0.40). There was a tendency to increase in the median OS in patients of the study group (46 months) compared to that in patients of the control group (26 months). Surgery in the study group was characterized with some technical difficulties associated with severe fibrosis. However, this did not affect the duration of surgery and the volume of blood loss.Conclusion. Tumor resection in patients with EGFR mutation-positive stage III–IV lung adenocarcinoma is feasible and safe, but requires highly qualified team surgeons in well-equipped medical centers. Our study revealed that the combination of EGFR-TKI and tumor resection provided better PFS and OS than EGFR-TKI alone. However, further studies are required.