Impact of Silicone Stent Placement in Symptomatic Airway Obstruction due to Non-Small Cell Lung Cancer - A French Multicenter Randomized Controlled Study: The SPOC Trial.

BACKGROUND: Therapeutic bronchoscopy (TB) is an accepted strategy for the symptomatic management of central airway malignant obstruction. Stent insertion is recommended in case of extrinsic compression, but its value in preventing airway re-obstruction after endobronchial treatment without extrinsic compression is unknown. OBJECTIVE: Silicone stent Placement in symptomatic airway Obstruction due to non-small cell lung Cancer (SPOC) is the first randomized controlled trial investigating the potential benefit of silicone stent insertion after successful TB in symptomatic malignant airway obstruction without extrinsic compression. METHOD: We planned an inclusion of 170 patients in each group (stent or no stent) over a period of 3 years with 1-year follow-up. The 1-year survival rate without symptomatic local recurrence was the main endpoint. Recurrence rate, survival, quality of life, and stent tolerance were secondary endpoints. During 1-year follow-up, clinical events were monitored by flexible bronchoscopies and were evaluated by an independent expert committee. RESULTS: Seventy-eight patients (mean age 65 years) were randomized into 2 arms: stents (n = 40) or no stents (n = 38) after IB. Consequently, our main endpoint could not be statistically answered. Improvement of dyspnea symptoms is noticeable in each group but lasts longer in the stent group. Stents do not change the survival curve but reduce unattended bronchoscopies. In the no stent group, 19 new TB were performed with 16 stents inserted contrasting with 10 rigid bronchoscopies and 3 stents placed in the stent group. In a subgroup analysis according to the oncologic management protocol following TB (first-line treatment and other lines or palliation), the beneficial effect of stenting on obstruction recurrence was highly significant (p < 0.002), but was not observed in the naïve group, free from first-line chemotherapy. CONCLUSION: Silicone stent placement maintains the benefit of TB after 1 year on dyspnea score, obstruction's recurrence, and the need for new TB. Stenting does not affect the quality of life and is suggested for patients after failure of first-line chemotherapy. It is not suggested in patients without previous oncologic treatment.

Endoscopic management of idiopathic tracheal stenosis.

BACKGROUND: Idiopathic tracheal stenosis (ITS) is a rare condition representing a difficult therapeutic challenge. Endoscopic management is a therapeutic option but long-term results are not established. The aim of this retrospective multicenter study was to analyze long-term outcome after endoscopic management of ITS. METHODS: Nine institutions involved in interventional bronchoscopy were contacted and asked to identify ITS endoscopically treated. A standard form was used to report the main characteristics and long-term outcome after endoscopic management. RESULTS: Twenty-three patients, 96% women, aged 45±16 years, were endoscopically treated for ITS. Time between first symptoms and diagnosis was 19±18 months. Bronchoscopy showed a weblike (61%) or complex (39%) stenosis, located in the upper part of the trachea, mainly in the cricoid area. Endoscopic treatment included mechanical dilation only (52%) or associated with laser or electrocoagulation (30%) and stent placement (18%). All procedures were efficient. The follow-up after endoscopic management was 41±34 months. The ITS recurrence occurred in 30% at 6 months, 59% at 2 years, and 87% at 5 years, with a delay of 14±16 months. The treatment of recurrence (n=13) included endoscopic management in 12 cases. CONCLUSIONS: Endoscopic management of ITS provides a safe and efficient therapeutic option but late recurrences are frequent and require long-term follow-up.

Is pneumonectomy after induction chemotherapy for non-small cell lung cancer a reasonable procedure? A multicenter retrospective study of 228 cases.

INTRODUCTION: Pneumonectomy (PN) after induction chemotherapy (CT) for non-small cell lung cancer is controversial because high-mortality rates are still reported. METHODS: This multicenter retrospective study included all patients treated by induction CT then PN between January 1993 and April 2006 in four General and Thoracic Surgery Departments. Postoperative mortality and morbidity and long-term outcomes were studied. RESULTS: The study considered 228 patients. Doublets with cisplatin and vinorelbine or gemcitabine were used in 66% of cases. pTNM stages (World Health Organization, 1997) were 0 (2%), I (16%), II (25%), IIIA (29%), IIIB (16%), and IV (12%). The postoperative morbidity rate was 37% (84 of 228 patients). The independent risk factors identified for postoperative morbidity were chronic obstructive pulmonary disease, more than four cycles of induction CT or an association of cisplatin, and an old cytotoxic molecule, extended PN, and extended anesthesia time. Postoperative mortality rates were 5.3% at 30 days (12 of 228 patients) and 9.2% at 90 days (21 of 228 patients). The independent risk factors identified for operative mortality were chronic obstructive pulmonary disease, manual suture of the stump, and pTNM stage higher than IIIA. The 90-day mortality rates were 10.3% (12 of 117) for right PN and 8.2% (9 of 111) for left PN (p = 0.65). The overall survival (OS) rates were 68% at 1 year, 39% at 3 years, and 32% at 5 years. CONCLUSIONS: Induction CT was not found to compromise short- or long-term outcomes after PN in non-small cell lung cancer. The right or left PN performed by experienced surgeons after induction CT seems to be a reasonable procedure in case of tumor local extension.