Publications by authors named "Seth B Krantz"

With the publication of CALGB 140503, an increase in wedge resections for small, peripheral non-small cell lung cancer is expected; however, a relative paucity of data exists as to what defines a high quality oncologic wedge resection. The Thoracic Surgery Outcomes Research Network (ThORN), through expert discussion, guided by review of what limited data does exist, and through use of a modified Delphi process, provides these consensus statements defining an oncologically sound, high quality wedge resection. The statements are classified into five categories: 1) Preoperative Considerations 2) Technical Aspects 3) Lymph Node Assessment 4) Margin Assessment and 5) Tissue Handling by Pathology.

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Introduction/background: Published studies on association of germline monogenic genes and lung cancer risk were inconsistent. Our objective is to assess the validity of reported candidate monogenic genes for their association with lung cancer.

Materials And Methods: A systematic review of published papers prior to August 2022 was performed first to identify all genes where germline mutations were associated with lung cancer risk.

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We present a case of an advanced squamous cell carcinoma encroaching on a patient's left internal mammary artery bypass graft. Tumor board consensus was to proceed with 2 cycles of neoadjuvant chemotherapy followed by resection. Intraoperatively, the left internal mammary artery bypass could not be safely dissected from the adjacent pleura, but frozen sections were negative for malignant transformation.

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Objective: To determine the frequency of pathogenic mutations in high-penetrance genes (HPGs) in patients with non-small cell lung cancer (NSCLC) and identify whether such mutations are associated with clinicopathologic outcomes.

Methods: Patients with NSCLC who had consented to participate in a linked clinical database and biorepository underwent germline DNA sequencing using a next-generation sequencing panel that included cancer-associated HPGs and cancer risk-associated single nucleotide polymorphisms (SNPs). These data were linked to the clinical database to assess for associations between germline variants and clinical phenotype using Fisher's exact test and multivariable logistic and Cox regression.

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Background: Real-world treatment practices for positive mediastinal nodal disease in non-small cell lung cancer (NSCLC) continues to vary despite guidelines. We aim to assess national trends in the treatment of pathologic-N2 disease, and evaluate the association with clinical nodal staging and timing of systemic therapy.

Methods: The National Cancer Database was queried for patients with NSCLC who underwent lobectomy and had pathologic-N2 disease from 2010-2017.

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Background: Simulation-based training is a valuable component of cardiothoracic surgical education. Effective curriculum development requires consensus on procedural components and focused attention on specific learning objectives. Through use of a Delphi process, we established consensus on the steps of video-assisted thoracoscopic surgery (VATS) left upper lobectomy and identified targets for simulation.

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Background: Prior studies suggest underutilization of invasive mediastinal staging for lung cancer. We hypothesized that The Society of Thoracic Surgeons General Thoracic Surgery Database (STS-GTSD) participants would have higher rates of invasive staging compared with previous reports.

Methods: We conducted a retrospective cohort study (2012 to 2016) of lung cancer patients staged by computed tomography and positron-emission tomography and first treated with an anatomic resection.

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Objectives: Very few studies have examined the quality of wedge resection in patients with non-small cell lung cancer. Using the National Cancer Database, we evaluated whether the quality of wedge resection affects overall survival in patients with early disease and how these outcomes compare with those of patients who receive stereotactic radiation.

Methods: We identified 14,328 patients with cT1 to T2, N0, M0 disease treated with wedge resection (n = 10,032) or stereotactic radiation (n = 4296) from 2005 to 2013 and developed a subsample of propensity-matched wedge and radiation patients.

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Background: For operable patients with clinical stage IIIA non-small cell lung cancer, the optimum neoadjuvant treatment strategy remains unclear. Our aim was to compare perioperative and long-term outcomes for patients receiving neoadjuvant chemoradiotherapy (NCRT) versus neoadjuvant chemotherapy (NCT) alone.

Methods: We queried the National Cancer Database to identify all patients with N2 and either T1-T2 non-small cell lung cancer who received either NCRT or NCT followed by lobectomy between 2006 and 2012.

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Background: Lymph node assessment for non-small cell lung cancer (NSCLC) shows wide variation among centers. Our aim was to assess the quality of lymph node assessment in early-stage NSCLC and determine whether any factors are associated with improved lymph node harvest.

Methods: We queried the National Cancer Database to identify patients with clinical stage I NSCLC who underwent segmentectomy or lobectomy between 2004 and 2013.

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Background: Upstaging in early esophageal adenocarcinoma (EAC) patients happens at a high rate and has implications for treatment. We sought to identify risk factors predicting upstaging.

Study Design: The National Cancer Database (2010-2013) was queried for all patients with clinical T1/T2 and N0 EAC who underwent esophagectomy without neoadjuvant therapy.

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Surgical resection is the treatment of choice for primary malignancies of the trachea. We present here the rare case of a lifelong nonsmoker with primary squamous cell carcinoma of the trachea, requiring tracheal resection and anterior carinal reconstruction. Patient preparation, surgical technique, and considerations to avoid airway anastomotic complications are discussed.

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Results of the recent National Lung Cancer Screening Trial show a significant survival benefit for annual screening with a low-dose computed tomographic (CT) scan in high-risk individuals. This result has led the US Preventive Services Task Force to recommend annual low-dose CT scans for this at-risk population. Less well characterized are the risks from screening.

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The role of transcatheter closure of a patent foramen ovale for cryptogenic stroke remains controversial. The most common complications include atrial arrhythmia and bleeding. Infectious complications are exceedingly rare.

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