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Anatomic segmentectomy becomes an actual therapeutic option for the thoracic surgeon on lung cancer treatment. Mostly applied for early-stage lung cancer resections, its applications go further passing from localized benign disease and metastatic lung lesions. Due to the anatomic complexity and the vascular anatomic variations of the segments, It is usually more technically challenging than a standard lobectomy. This complexity is noted mainly in single-segment resections where there is a need to treat more than 1 intersegmental plane. The great anatomical variation and the high occurrence of lesions in the upper lobes make it important to study sublobar resections of the right upper lobe. Performing it with minimally invasive access requires a great knowledge of the technique to standardize the approach avoid pitfalls and optimize the procedure outcomes. This paper aims to describe the anatomic segmental resections of the right upper lobe performed by minimally invasive access, anticipating instructions for video thoracoscopic and robotic approaches. [ABSTRACT FROM AUTHOR]

The right B3 downwards-shifting malformation is rare. This malformation often leads to the following complications: abnormal pulmonary arteries that accompany the downward-displaced B3, and complete fusion of the upper and middle lobes into one lobe, with no horizonal fissure. When performing pulmonary anatomical resection in the right upper or middle lobes in patients with this malformation, careful preoperative planning and surgical technique are required, with which the surgeon should be familiar. Herein, we present the anatomical features necessary for anatomical resection of the right B3 downwards-shifting malformation based on our technical experiences with anatomic segmentectomy and lobectomy techniques. [ABSTRACT FROM AUTHOR]

Objectives: The aim of this study is to compare the postoperative complications, perioperative course, and survival among patients from the multicentric Spanish Video-assisted Thoracic Surgery Group database who received video-assisted thoracic surgery lobectomy or video-assisted thoracic surgery anatomic segmentectomy. Methods: From December 2016 to March 2018, a total of 2250 patients were collected from 33 centers. Overall analysis (video-assisted thoracic surgery lobectomy = 2070; video-assisted thoracic surgery anatomic segmentectomy = 180) and propensity score–matched adjusted analysis (video-assisted thoracic surgery lobectomy = 97; video-assisted thoracic surgery anatomic segmentectomy = 97) were performed to compare postoperative results. Kaplan–Meier and competing risks method were used to compare survival. Results: In the overall analysis, video-assisted thoracic surgery anatomic segmentectomy showed a lower incidence of respiratory complications (relative risk, 0.56; confidence interval, 0.37-0.83; P = .002), lower postoperative prolonged air leak (relative risk, 0.42; 95% confidence interval, 0.23-0.78; P = .003), and shorter median postoperative stay (4.8 vs 6.2 days; P = .004) than video-assisted thoracic surgery lobectomy. After propensity score–matched analysis, prolonged air leak remained significantly lower in video-assisted thoracic surgery anatomic segmentectomy (relative risk, 0.33; 95% confidence interval, 0.12-0.89; P = .02). Kaplan–Meier and competing risk curves showed no differences during the 3-year follow-up (median follow-up in months: 24.4; interquartile range, 20.8-28.3) in terms of overall survival (hazard ratio, 0.73; 95% confidence interval, 0.45-1.7; P = .2), tumor progression–related mortality (subdistribution hazard ratio, 0.41; 95% confidence interval, 0.11-1.57; P = .2), and disease-free survival (subdistribution hazard ratio, 0.73; 95% confidence interval, 0.35-1.51; P = .4) between groups. Conclusions: Video-assisted thoracic surgery segmentectomy showed results similar to lobectomy in terms of postoperative outcomes and midterm survival. In addition, a lower incidence of prolonged air leak was found in patients who underwent video-assisted thoracic surgery anatomic segmentectomy.

Situs inversus totalis (SIT) is an extremely uncommon congenital disease where the major organs of the body are transposed through the sagittal plane. Kartagener syndrome is a complication of SIT with immotility of bronchial cilia, bronchiectasis, and chronic sinusitis. There is no report describing patients with Kartagener syndrome who accept uni-portal segmentectomies for lung cancer in past studies. Here we report a 74-year-old female patient with both Kartagener syndrome and a small early-stage lung cancer lesion located in the apical segment of the left upper lobe (LS1). The pulmonary segment anatomy of the left upper lobe in this case, which had very rare variants, was presented and interpreted in detail. This patient underwent an anatomic segmentectomy to the LS1 and a partial excision to the left middle lobe with bronchiectasis through a single 3 cm length incision. We believe that the case can give surgeons some experience and inspiration. [ABSTRACT FROM AUTHOR]

Background The patients with huge (≥10 cm) or multiple hepatocellular carcinoma (HCC) in the right liver and insufficient size of the remnant left liver can not be performed an operation of right hemihepatectomy because of that liver failure will occur post operation. We designed anatomic trisegmentectomy in right liver to increase the ratio of future liver remnant volume (%FLRV), thus increasing resectability of huge or multiple HCC. Methods Thirteen patients were analyzed by preoperative CT scan for liver and tumor volumetries. If the right hemihepatectomy was done, %FLRV would be at the range of 29.6%–37.5%. However, if trisegmentectomy was done, %FLRV would increase by an average of 14.0%. So patients will not undergo postoperative liver failure due to sufficient %FLRV. Therefore, we designed anatomic trisegmentectomy, with retention of segment 5 or segment 8, to increase %FLRV and increase the resectability for huge or multiple HCC. Results After trisegmentectomy, the inflow and outflow of remnant liver were maintained well. Severe complications and mortality were not happened post operation. Of the 13 patients, 10 survived up to now. Of the 10 living cases, postoperative lung metastasis was found in 2 and intrahepatic recurrence was found in 1. These 3 patients survive with tumor after comprehensive therapies including oral administration of Sorafenib. Conclusion Compared to right hemihepatectomy, anatomic trisegmentectomy in right liver guarantees the maximum preservation of %FLRV to increase the resectability of huge or multiple HCC, thus improving the overall resection rate. [ABSTRACT FROM AUTHOR]

PURPOSE : The diagnosis and treatment of solitary pulmonary nodule (SPN) is a common but complex clinical problem, for which the investigation of the role of thoracic surgery comprised the purpose of the present study. METHODS : By computerized literature search we tried to answer three questions: a) when is surgical resection (diagnostic or therapeutic) of SPN is indicated? b) what type of surgical resection is required {lobectomy or limited (sublobar) lung resection such as wedge resection or anatomic segmentectomy} for malignant SPN? and c) by what method (VATS or open thoracotomy) should be performed biopsy-resection of SPN? RESULTS : We noted that the increased probability for malignancy of a SPN as reflected by the existing imaging methods and the failure to set histological diagnosis with modern invasive but non-surgical methods are the main indications for thoracic surgical intervention (diagnostic or therapeutic). About whether lobectomy or sublobar resection is the best surgical treatment approach, we found that although they have comparable survival rates, wedge resection is associated with fewer complications, shorter hospitalization but higher percentages of local recurrences in contrast to anatomic segmentectomy which has similar results to those of lobectomy. As to whether video-assisted thoracic surgery or open thoracotomy is the best diagnostic or therapeutic surgical approach for a SPN, they exhibit comparable results, both diagnostically and therapeutically. CONCLUSIONS : More randomized controlled trials are needed for comparing videoassisted thoracic surgery with open thoracotomy and the various types of surgical resection of SPN. [ABSTRACT FROM AUTHOR]

BACKGROUND: The aim of this study was to evaluate whether 3-dimensional (3D) simulation software is applicable to and useful for anatomic liver segmentectomy and subsegmentectomy. METHODS: A prospective study of 83 consecutive patients who underwent anatomic segmentectomy or subsegmentectomy using the puncture method was performed. All patients underwent 3D simulation analysis (SA) preoperatively for planning operative procedures. The clinical information acquired by 3D SA and the consistency of virtual and real hepatectomy were evaluated. RESULTS: The time needed for completing 3D SA was 18.3 ± .7 minutes. Three-dimensional SA proposed resection of multiple segments or subsegments in 29 patients (35%). It also helped complement the resection line in 26 patients (31%) who lacked a bold staining area on the liver surface. The volume of segment or subsegment calculated by 3D SA was correlated with the actual resected specimen (R2 = .9942, P <.01). The bordering hepatic veins were clearly exposed in 71 patients (86%), in accordance with completed drawings by 3D SA. CONCLUSIONS: Three-dimensional SA showed accurate completed drawings and assisted liver surgeons in planning and executing anatomic segmentectomy and subsegmentectomy. [ABSTRACT FROM AUTHOR]

Objectives: The aim of this study is to compare the postoperative complications, perioperative course, and survival among patients from the multicentric Spanish Video-assisted Thoracic Surgery Group database who received video-assisted thoracic surgery lobectomy or video-assisted thoracic surgery anatomic segmentectomy., Methods: From December 2016 to March 2018, a total of 2250 patients were collected from 33 centers. Overall analysis (video-assisted thoracic surgery lobectomy = 2070; video-assisted thoracic surgery anatomic segmentectomy = 180) and propensity score-matched adjusted analysis (video-assisted thoracic surgery lobectomy = 97; video-assisted thoracic surgery anatomic segmentectomy = 97) were performed to compare postoperative results. Kaplan-Meier and competing risks method were used to compare survival., Results: In the overall analysis, video-assisted thoracic surgery anatomic segmentectomy showed a lower incidence of respiratory complications (relative risk, 0.56; confidence interval, 0.37-0.83; P  = .002), lower postoperative prolonged air leak (relative risk, 0.42; 95% confidence interval, 0.23-0.78; P  = .003), and shorter median postoperative stay (4.8 vs 6.2 days; P  = .004) than video-assisted thoracic surgery lobectomy. After propensity score-matched analysis, prolonged air leak remained significantly lower in video-assisted thoracic surgery anatomic segmentectomy (relative risk, 0.33; 95% confidence interval, 0.12-0.89; P  = .02). Kaplan-Meier and competing risk curves showed no differences during the 3-year follow-up (median follow-up in months: 24.4; interquartile range, 20.8-28.3) in terms of overall survival (hazard ratio, 0.73; 95% confidence interval, 0.45-1.7; P  = .2), tumor progression-related mortality (subdistribution hazard ratio, 0.41; 95% confidence interval, 0.11-1.57; P  = .2), and disease-free survival (subdistribution hazard ratio, 0.73; 95% confidence interval, 0.35-1.51; P  = .4) between groups., Conclusions: Video-assisted thoracic surgery segmentectomy showed results similar to lobectomy in terms of postoperative outcomes and midterm survival. In addition, a lower incidence of prolonged air leak was found in patients who underwent video-assisted thoracic surgery anatomic segmentectomy., (© 2022 The Author(s).)

We hypothesize that segmentectomy is associated with similar recurrence-free and overall survival when compared with lobectomy in the setting of patients with clinical T1cN0M0 non–small cell lung cancer (NSCLC; >2-3 cm), as defined by the American Joint Committee on Cancer 8th edition staging system. We performed a single-institution retrospective study identifying patients undergoing segmentectomy (90) versus lobectomy (279) for T1c NSCLC from January 1, 2003, to December 31, 2016. Univariate, multivariable, and propensity score–weighted analyses were performed to analyze the following endpoints: freedom from recurrence, overall survival, and time to recurrence. Patients undergoing segmentectomy were older than patients undergoing lobectomy (71.5 vs 68.8, respectively, P =.02). There were no differences in incidence of major complications (12.4% vs 11.7%, P =.85), hospital length of stay (6.2 vs 7 days, P =.19), and mortality at 30 (1.1% vs 1.7%, P = 1) and 90 days (2.2% vs 2.3%, P = 1). In addition, there were no statistical differences in locoregional (12.2% vs 8.6%, P =.408), distant (11.1% vs 13.9%, P =.716), or overall recurrence (23.3% vs 22.5%, P = 1), as well as 5-year freedom from recurrence (68.6% vs 75.8%, P =.5) or 5-year survival (57.8% vs 61.0%, P =.9). Propensity score–matched analysis found no differences in overall survival (hazard ratio [HR], 1.034; P =.764), recurrence-free survival (HR, 1.168; P =.1391), or time to recurrence (HR, 1.053; P =.7462). In the setting of clinical T1cN0M0 NSCLC, anatomic segmentectomy was not associated with significant differences in recurrence-free or overall survival at 5 years. Further prospective randomized trials are needed to corroborate the expansion of the role of anatomic segmentectomy to all American Joint Committee on Cancer 8th Edition Stage 1A NSCLC. Kaplan–Meier curves depicting time to recurrence in an unmatched cohort of anatomic segmentectomy (red line , n = 90) versus lobectomy (black line , n = 279) for clinical T1cN0M0 non–small cell lung cancer. 95% confidence intervals are represented by the shaded areas (segmentectomy is shown in red , lobectomy in gray). The difference in time to recurrence was not statistically significant (P =.83). NSCLC , Non–small cell lung cancer. [Display omitted] [ABSTRACT FROM AUTHOR]

Anatomic liver resection not only enables enough tumor-free resection margin but also guarantees maximum preservation of remaining normal liver tissue. We report herein a hepatocellular carcinoma patient who underwent successful anatomic liver resection of segments 6, 7, and 8 by the method of selective occlusion of hepatic inflow. Multiple tumors were found in segments 6, 7, and 8 by computed tomographic (CT) scanning. CT volumetry analyzed that his left hemi-liver volume was less than the minimal limit of safe survival. Therefore, we planned to perform segment 5 remaining, anatomic liver resection of segments 6, 7, and 8 to guarantee the maximum preservation of remaining normal liver tissue. Selective occlusion of hepatic inflow was creatively used twice in this case to divide right hemi-liver Glissonean pedicle and segments 6 and 7 Glissonean pedicle, respectively. Thus, the resection line was determined, and anatomic liver resection of segments 6, 7, and 8 was completed. Selective right hemi-liver Glissonean pedicle occlusion was used, while parenchymal transection was between segments 6 and 5 and between segments 8 and 5. Therefore, liver ischemia reperfusion injury and homodynamic instability were maximally reduced during operation. [ABSTRACT FROM AUTHOR]

A ground-glass opacity (GGO) lesion was discovered in a 64-year-old female 1 year ago. One month before administration, a follow-up CT showed the lesion in the apical segment of left upper lobe had increased from 8 to 11 mm in diameter. The lesion was diagnosed to be cT1aN0M0 non-small cell lung cancer (NSCLC) and a 3-port video-assisted thoracic surgery (VATS) anatomic segmentectomy was performed. Intraoperative frozen sections revealed a microinvasive adenocarcinoma. Systematic lymph node dissection was then carried out. The final pathological result showed a pT1aN0M0 (Ia) adenocarcinoma., Competing Interests: Conflicts of Interest: The authors have no conflicts of interest to declare.

Nowadays, sublobar anatomic resections are gaining momentum as a valid alternative for early stage lung cancer. Despite being technically demanding, anatomic segmentectomies can be performed by uniportal video-assisted thoracic surgery (VATS) approach to combine the benefits of minimally invasiveness with the maximum lung sparing. This procedure can be even more complex if a combined resection of multiple segments from different lobes has to be done. Here we report five cases of combined and unusual segmentectomies done by the same experienced surgeon in high volume institutions to show uniportal VATS is a feasible approach for these complex resections and to share an excellent educational resource., Competing Interests: Conflicts of Interest: The authors have no conflicts of interest to declare.

Anatomical segmentectomy is the complete resection of an area supplied by a segmental portal branch. Among segmentectomies, isolated segmentectomy 4 is a technically demanding procedure because there are two transection planes: on the left side along the umbilical fissure and, on the right side, along the middle hepatic vein. Although there are several reports on anatomic segmentectomies, only few regard the anatomic segmentectomy 4a. We report here the case of a 60-year-old man who underwent anatomical segmentectomy 4a en bloc with the caudate lobe to resect a colorectal liver metastasis located in segment 4a and involving the paracaval portion of the caudate lobe. This type of procedure was planned in order to maximize the postoperative functional hepatic reserve, thereby reducing the risk of postoperative liver failure and ultimately allowing the possibility for future repeat hepatectomy in case of recurrence. J. Surg. Oncol. 2016;113:665-667. © 2016 Wiley Periodicals, Inc., (© 2016 Wiley Periodicals, Inc.)