Faculty Bibliography

Patients with non-small cell lung cancer (NSCLC) that invades the chest wall are often thought not to benefit from minimally invasive surgery. Frequently, open techniques involve cutting noninvolved extrathoracic muscles that lie over the cancer to gain access to resect the ribs that contain malignancy. We reviewed a new technique involving 21 patients that eliminates cutting of the extrathoracic (trapezius, rhomboids, serratus anterior) muscles. Ribs with invading cancer are resected from inside of the chest instead of cutting the uninvolved muscles over them. The approach used can be a thoracotomy, robotic, or video-assisted technique.

OBJECTIVE: Quality of life after pulmonary resection is becoming an increasingly important part of the conversation between patients and surgeons. Pneumonectomy is often called a disease. The objective of this study was to assess the physical and mental aspects of patients' quality of life at least 1 year after pneumonectomy. METHODS: Quality of life was ascertained using the Short Form-12 (SF-12) survey on a consecutive series of patients who were at least 1 year postoperative from a pneumonectomy. Both the physical and mental component scores of the quality-of-life survey were obtained and compared. RESULTS: There were 152 patients who underwent pneumonectomy between January 1997 and December 2010 by the same surgeon (104 for non-small cell lung cancer); 111 patients met the eligibility criteria. Mean survival was 3.4 years and the overall 5-year Kaplan-Meier survival was 38%. Responses to the quality-of-life survey were obtained in 108 of 111 patients (98%) who were at least 1 year postoperative. The overall quality-of-life score was comparable with that of the healthy population and patients with chronic diseases. The mean physical component score was significantly lower than that of the healthy population score (P = .04); the mental quality-of-life score was higher than those for patients with certain chronic diseases such as liver or kidney disease (P = .05). After multivariate analysis, only age remained a significant predictor of the physical component score. CONCLUSIONS: Pneumonectomy is tolerated in carefully selected patients. The physical quality-of-life score 1 year after resection is significantly lower than the average population, yet the mental score in these patients is higher. Future studies on quality of life should be considered for all medical therapies, and stratification of the mental score from the physical score should be reported.

BACKGROUND: The American College of Surgery Oncology Group Z0030 study was a prospective randomized study that showed that mediastinal lymph node sampling (MLNS) offered similar results to mediastinal lymph node dissection (MLND) in patients with non-small cell lung cancer (NSCLC). However, that study only randomized patients after thorough samplings that were negative on frozen section in several N2 and N1 nodal stations. The purpose of this study was to evaluate the effect of MLND to the more common practice of ruling out N2 disease preoperatively and then resection without sending lymph nodes for frozen section. METHODS: This is a retrospective study of patients clinically staged as N0 with NSCLC. The incidence of pathologic N2 disease reported by the Society of Thoracic Surgeons (STS) database was considered to represent MLNS and it was compared with our patients who underwent complete MLND. RESULTS: Between January 2002 and December 2009, 1,358 patients clinically staged as N0 underwent lobectomy or segmentectomy and MLND (not MLNS). Our incidence of pathologic N2 disease in 1,107 patients who underwent lobectomy was 10.6% compared with 9.4% in the 24,896 STS lobectomy patients (p=0.196). Our incidence of pathologic N2 disease in 251 patients who underwent segmentectomy was 13.0% compared with 5.3% in the 2,150 STS segmentectomy patients (p<0.001). CONCLUSIONS: When complete MLND is performed in patients during pulmonary resection who are clinically node negative (have benign N2 nodes after selective endobronchial or esophageal ultrasound or mediastinoscopy) without using intraoperative frozen section of N2 or N1, more patients are pathologically staged with N2 disease; thus, more are considered for adjuvant chemotherapy. The impact on survival in these patients is unproven.

Understanding the anatomy of the lymphatic channels and lymph nodes in the mediastinum is relevant to many disease processes as well as therapeutic interventions for thoracic malignancies. A brief review of the anatomy of the mediastinal lymph nodes is presented and the indications for mediastinal lymph node dissection are discussed, followed by a more detailed description of the technical aspects of thoracoscopic and robotic mediastinal lymph node dissection.

OBJECTIVES: We evaluated factors that influenced morbidity and mortality in patients undergoing completion pneumonectomy (CP). METHODS: A retrospective review of a consecutive series of patients who underwent CP at six international centres. RESULTS: In total, 165 CP were performed between March 1990 and December 2009: 152 for malignant disease and 13 for benign disease. Forty-two patients (25.4%) underwent neoadjuvant therapy. Right CP was performed in 99 patients (60%) and left in 66 (40%). Thoracotomy was employed in 161 patients and median sternotomy in 4. Stapled closure of the bronchus was performed in 121 patients and hand closure in 44. The overall operative mortality was 10.3% (17 of 165). Operative mortality was 10.5% (16 of 152) in malignant diseases and 7.7% (1 of 13) in benign diseases. Complications occurred in 55.1% (91 of 165) of patients. Mean hospital stay was 16.02 +/- 16.8 days (range: 3-151 days). Thirteen patients (7.9%) developed bronchopleural fistulas. No statistically significant relationship was found in mortality or morbidity according to side, gender, induction therapy and surgical approach. Stapled compared with hand closure for the bronchus did not affect the bronchopleural fistula rate (P = 0.4). The overall 5-year survival was 37.6%: 70.1% in benign disease (13 patients), 48.9% in squamous cell carcinoma of the lung (63 patients), 23.9% in primary lung adenocarcinoma (62 patients), 50% in grade 1 and grade 2 neuroendocrine carcinoma of the lung (4 patients), 54.7% in metastatic disease (14 patients) and 0% in primary lung sarcomas. A statistically significant better survival was observed in patients with squamous cell carcinoma versus adenocarcinoma (P = 0.04). CONCLUSIONS: CP shows an acceptable operative mortality with a high morbidity rate. The overall 5-year survival is acceptable in properly selected patients (i.e. squamous cell carcinoma, metastatic disease). Side, gender, induction therapy and surgical approach did not influence mortality and morbidity.