[Robotic Mediastinal Tumor Surgery Using da Vinci SP Surgical System].

The da Vinci single-port (SP) surgical system is a new system in which a camera and three robotic forceps are inserted into the body through a single small wound for surgical manipulation. This paper outlines the basic techniques and tips for mediastinal tumor surgery using the da Vinci SP, especially the subxiphoid single-port approach. In addition, we will discuss the subcostal approach single-port middle or posterior mediastinal tumor surgery.

Honeycomb lung is a major risk factor for preoperative radiological tumor size underestimation in patients with primary lung cancer.

Background: Lung cancer frequently occurs in lungs with background idiopathic interstitial pneumonias (IIPs). Limited resection is often selected to treat lung cancer in patients with IIPs in whom respiratory function is already compromised. However, accurate surgical margins are essential for curative resection; underestimating these margins is a risk for residual lung cancer after surgery.

Successful thoracic duct identification with patent blue V during thoracic duct ligation for chylothorax: a case report.

Background: Chylothorax after thoracic surgery is a rare but severe complication. When thoracic duct ligation is performed for chylothorax, identification of the leakage site and the thoracic duct course is necessary. Administering milk orally or through a nasogastric tube and injecting indocyanine green into lymph nodes and lymphatic vessels can be performed to identify the leakage site and the thoracic duct course.

The phase angle as a predictor of postoperative complications in patients undergoing lung cancer surgery.

Purpose: The phase angle (PhA), calculated by bioelectrical impedance analysis, is used as a nutritional risk indicator. A low preoperative PhA has been reported as a marker of postoperative complications in patients with cancer; however, the relationship between the PhA and postoperative complications in patients with lung cancer remains unknown. We conducted this study to assess the predictive ability of the preoperative PhA for postoperative complications in patients undergoing surgery for primary lung cancer.

γH2AX, a DNA Double-Strand Break Marker, Correlates with PD-L1 Expression in Smoking-Related Lung Adenocarcinoma.

In recent years, the choice of immune checkpoint inhibitors (ICIs) as a treatment based on high expression of programmed death-ligand 1 (PD-L1) in lung cancers has been increasing in prevalence. The high expression of PD-L1 could be a predictor of ICI efficacy as well as high tumor mutation burden (TMB), which is determined using next-generation sequencing (NGS). However, a great deal of effort is required to perform NGS to determine TMB.

Tracheobronchial reconstruction by inverted Barclay's method for tracheobronchial injury in an 8-year-old girl: a case report.

Background: Tracheobronchial injury in children is rare but can be highly fatal in severe cases. Therefore, prompt diagnosis and treatment are required. The appropriate treatment method depends on the extent and severity of the injury.

Evaluation of prognosis after thoracoscopic lobectomy for primary lung cancer.

Introduction: Thoracoscopic lobectomy for primary lung cancer is performed at many institutions. However, few reports are available on postoperative prognosis for progressive stages. In 2004, we adopted lobectomy by video-assisted thoracoscopic surgery (VATS), which would be applicable to the clinical stages up to stage IIIA.

Early outcomes in 147 consecutive cases of subxiphoid single-port thymectomy and evaluation of learning curves.

Objectives: The aim of the present study was to examine some initial results and learning curves concerning subxiphoid single-port thymectomy (SSPT), thereby clarifying the safety of this surgical approach and describing the precautions for adopting it.

Methods: From March 2011 to August 2019, a total of 203 patients underwent thymectomy for either anterior mediastinal tumours or myasthenia gravis at Fujita Health University Hospital. Of these 203 patients, 147 patients who had undergone SSPT were selected as participants for the present study.

Prediction of pulmonary function after major lung resection using lung perfusion scintigraphy with single-photon emission computed tomography/computed tomography.

Objective: Precise prediction of postoperative pulmonary function is extremely important for accurately evaluating the risk of perioperative morbidity and mortality after major surgery for lung cancer. This study aimed to compare the accuracy of a single-photon emission computed tomography/computed tomography (SPECT/CT) method that we recently developed for predicting postoperative pulmonary function versus the accuracy of both the conventional simplified calculating (SC) method and the method using planar images of lung perfusion scintigraphy.

Methods: The relationship between the postoperative observed % values of the forced expiratory volume in 1 second (FEV) or diffusing capacity for carbon monoxide (DL or DL') and the % predicted postoperative (%ppo) values of FEV, DL, or DL' calculated by the three methods were analyzed in 30 consecutive patients with lung cancer undergoing lobectomy.

Uniportal video-assisted thoracic surgery lowers the incidence of post-thoracotomy pain syndrome.

Objective: We compared post-thoracotomy pain syndrome (PTPS) incidence in patients who underwent uniportal or multiportal video-assisted thoracoscopic surgery (VATS).

Methods: We included 223 patients who underwent either uniportal or multiportal VATS between January 2017 and October 2018 (pulmonary lobectomies and pulmonary segmentectomies-uniportal: =19, multiportal: =133; wedge lung resections-uniportal: =16, multiportal: =55). We retrospectively studied incidences of PTPS in all subgroups.

Video-assisted thoracoscopic surgery for ectopic mediastinal parathyroid tumor: subxiphoid and lateral thoracic approach.

Background: This study aimed to investigate the initial results of an endoscopic surgical approach for the treatment of intramediastinal ectopic parathyroid adenoma and to evaluate the effectiveness of a single-incision resection using the subxiphoid approach.

Methods: Five cases of patients (1.89%) were diagnosed with ectopic mediastinal parathyroid tumor and underwent resection from 2008 to 2017 in Fujita Health University Hospital.