Modified blade: an interventional option in rigid bronchoscopy for non-resectable benign tracheal stenosis.

INTRODUCTION: Benign tracheobronchial stenosis is a abnormal tracheal lumen narrowing that may incur progressive dyspnea and life-threatening hypoxemia. There is no consensus on which patients should be treated with endoscopic or surgical method. This study investigates the outcomes of bronchoscopic dilatation in the treatment of benign tracheal stenosis using a device equipped with a blade to cut the stenotic lesions with dense fibrosis. MATERIALS AND METHODS: The procedure was carried out in an operating room under general anesthesia. All patients were intubated with a Rigid Bronchoscope (RB) placed just above the stenosis. Through Rigid Bronchoscopy combined modalities were used as needed: radial incisions of the mucosal stenosis with blade at the levels of 4, 8 and 12 o'clock, with back and forth movements, then the stenotic area was dilated more easily with a rigid bronchoscope. Dilatation was performed by passing the RB of increasing diameter through stenotic areas and then Balloon dilatation of increasing diameter. There were no complications during the procedure. RESULT: We conducted an observational, retrospective, single-centre study in the Thoracic Surgery Unit of the University of 'Luigi Vanvitelli' of Naples from November 2011 to September 2021. We included all consecutive patients with benign tracheal stenosis inoperable. During the study period, 113 patients were referred to our department with benign tracheal stenosis inoperable. 61 patients were treated with the blade. During the follow-up, a recurrence of the stenosis was observed in 8 patients in the first month and in 4 patients in the third month. Instead in the patients treated with the use of laser (52 patients), during the follow-up a recurrence was observed in 16 patients in the first month and in 6 patients in the third month; no patient relapsed after 6 months and after 1 year. Long term successful bronchoscopic management with blade was attained by 99% in simple and 93% in mixed stenosis and in complex type stenosis. CONCLUSION: Our study underlines the importance of the use of the blade in bronchoscopic treatment as a valid conservative approach in the management of patients with inoperable benign tracheal stenosis as an alternative to the use of the laser, reducing the abnormal inflammatory reaction in order to limit recurrences.

Advances in Endoscopic Management of Endobronchial Carcinoid.

INTRODUCTION: Bronchial carcinoid (BC) tumors represent between 1% and 5% of all lung cancers and about 20-30% of carcinoid tumors; they are classified into two groups: typical and atypical bronchial carcinoids. The aim of the present study was to review the results of endoscopic treatments as an alternative to surgical treatment in selected patients. MATERIALS AND METHODS: The present study was a retrospective and multicentric study, in which all data were reviewed for patients with BC in the central airways, referred to the Thoracic Surgery Units of Luigi Vanvitelli University of Naples and Sant'Andrea Hospital in Rome between October 2012 and December 2022 Overall, 35 patients, 13 of whom were female, were included in the study (median age, 53 years; range, 29-75 years). All patients underwent rigid bronchoscopy combined with flexible bronchoscopy. Tumor clearance was mostly performed by use of Argon Plasma Coagulation or Thulep Laser, mechanical debridement and excision with the use of forceps and aspirator through the working channel of the 8.5 mm-sized rigid bronchoscope. There were no complications during the treatment. RESULTS: Endobronchial treatment provided complete tumor eradication in all patients; two patients had controlled bleeding complications; however, bleeding was well controlled without patient desaturation, and only one patient died of renal failure during the follow-up period. We found two recurrences in the left and right main bronchus, in patients with atypical carcinoma during fiberoptic bronchoscopy follow-up. Only one patient died of renal failure. At the first analysis, there were no significant differences between the patients receiving endobronchial treatment and patients receiving surgical treatment in the present study (p-value > 0.05-it means statistically insignificant). CONCLUSIONS: Endobronchial treatment is a valid and effective alternative for patients with BC unsuitable for surgery.

Intraoperative ventilatory leak: Real-time guidance for management of air leak in lung cancer patients undergoing VATS lobectomy.

BACKGROUND: Persistent air leak (PAL) is a common complication after video-assisted thoracoscopic surgery (VATS) lobectomy. We aimed to evaluate whether the intraoperative quantitative measurement of air leaks using a mechanical ventilation test could predict PAL and identify those patients needing additional treatment for the prevention of PAL. METHODS: This was an observational, retrospective, single-center study that included 82 patients who underwent VATS lobectomy with a mechanical ventilation test for VL. Only 2% of patients who underwent lobectomy surgery had persistent air leaks. RESULTS: At the end of lobectomy performed in patients with non-small cell lung cancer, the lung was reinflated at a 25-30 mmH2O pressure and ventilatory leaks (VL) were calculated and in relation to the entity of the air leaks, we evaluated the most suitable intraoperative treatment to prevent persistent air leaks. CONCLUSION: VL is an independent predictor of PAL after VATS lobectomy; it provides a real-time intraoperative guidance to identify those patients who can benefit from additional intraoperative preventive interventions to reduce PAL.

Ventilation challenge in rigid bronchoscopy: Laser tube as an alternative management in patients with lung cancer and central airway obstruction.

INTRODUCTION: Central airway tumors involving the trachea and main-stem bronchi are a common cause of airway obstruction and a significant cause of mortality among the patients of thoracic diseases with respiratory failure. Debulking in rigid bronchoscopy is quick, safe, and effective. It can be complex and hard in patients with severe bronchial or tracheal obstruction and/or with intraluminal bleeding tumors because of inadequate distal airway control. We have used laser tube as a new technique of ventilation for severe central airway obstruction. MATERIALS AND METHODS: Forty-six patients with severe airway obstruction undergoing rigid bronchoscopy from September 2020 to June 2022 at the Thoracic Surgery Department of the University L. Vanvitelli of Naples underwent placement of laser tube. RESULTS: In all patients who underwent rigid bronchoscopy with the use of the laser tube, a reduction of obstruction of more than 50% was obtained and in all patients no hypoxia (saturation < 88%), nor hypercapnia, nor significant bleeding were reported. DISCUSSION: The results of this study suggest that rigid bronchoscopic debulking with the use of laser tube is a safe and effective technique in the management of central airway obstruction. CONCLUSIONS: The use of the laser tube allows the monitoring of gas exchange, which controls hypoxemia. Thanks to the double cuff put distally to the tracheal obstruction or in the contralateral bronchus to the obstructed one, the laser tube prevents the flooding of blood from debulking below the stenosis. Rigid bronchoscopy with laser tube will expand its use in the future.

Hemodynamic collapse under anesthesia in a patient with pulmonary artery sarcoma.

PURPOSE: To describe a case of acute right ventricular dysfunction and hemodynamic collapse under general anesthesia in a patient undergoing resection of a pulmonary artery sarcoma. CLINICAL FEATURES: A 67-yr-old woman with a presumptive diagnosis of pulmonary embolism presented to the hospital with progressive shortness of breath and syncope despite therapeutic anticoagulation. An echocardiogram revealed a large mass in the main pulmonary artery and a right ventricular systolic pressure of 105 mmHg. She was referred to our centre for urgent surgical management. One hour following induction of general anesthesia, the patient sustained sudden hemodynamic collapse. Transesophageal echocardiography revealed massive right ventricular dilation, effectively producing tamponade of the left ventricle. Urgent pericardiotomy was performed with immediate hemodynamic recovery. After initiation of cardiopulmonary bypass, the patient was found to have a large pulmonary artery sarcoma involving the pulmonary valve. Following successful resection with grafting and pulmonary valve replacement, the patient's trachea was extubated the following day, and she was discharged from hospital 1 week later in satisfactory condition. CONCLUSIONS: Pulmonary artery sarcomas pose rare and unique challenges to the anesthesiologist. Given the high perioperative mortality, careful monitoring for catastrophic acute cor pulmonale is crucial. Urgent pericardiotomy or cardiopulmonary bypass for sudden hemodynamic collapse may be life-saving components of intraoperative management.