Article: article from journal or magazin.
CT-guided methylene-blue labelling before thoracoscopic resection of pulmonary nodules.
European Journal of Cardio-Thoracic Surgery
Publication types: Comparative Study ; Journal Article
OBJECTIVE: Evaluation of the efficiency of our technique of methylene-blue labelling of pulmonary nodules to facilitate thoracoscopic recognition and excision. DESIGN: Patients with a peripheral pulmonary nodule smaller than 2.5 cm and not in contact with the visceral pleura were included. Under tomodensitometric guidance, the nodules were labelled with methylene-blue within hours before thoracoscopic wedge resection. If frozen section revealed a primary bronchial carcinoma, thoracotomy and classical resection were performed during the same anesthesia. RESULTS: Between July 1992 and August 1996, 54 nodules were removed in 51 patients. Labelling was performed between 75 and 270 min before surgery and was complicated in 13 patients (25.4%) by a small pneumothorax without any clinical consequence. Labelling allowed successful thoracoscopic recognition of 50 nodules (92%) and thoracoscopic wedge resection was possible in all but one cases (91%). Five patients (9%) required thoracotomy. Histology showed a benign lesion in 22 cases, a primary lung carcinoma in 17 and a metastases in 15. Twenty of the 22 benign nodules (91%) were removed without thoracotomy. According to the protocol, 13 patients with a primary lung tumour underwent lobectomy during the same session. There was no mortality nor morbidity amongst patients who had thoracoscopy only. CONCLUSIONS: Our technique of labelling peripheral pulmonary nodules with methylene-blue is very effective and is not associated with any relevant complication. Thoracoscopic excision and diagnosis is possible in more than 90% of the cases. We therefore recommend this simple, low-cost and reliable technique for nodules not in contact with the visceral pleura before thoracoscopic wedge resection.
Adult, Aged, Endoscopy/methods, Female, Follow-Up Studies, Humans, Indicators and Reagents/administration & dosage, Injections, Intralesional, Lung Neoplasms/diagnosis, Lung Neoplasms/surgery, Male, Methylene Blue/administration & dosage, Methylene Blue/diagnostic use, Middle Aged, Neoplasm Metastasis/diagnosis, Preoperative Care/methods, Retrospective Studies, Sensitivity and Specificity, Solitary Pulmonary Nodule/diagnosis, Solitary Pulmonary Nodule/surgery, Thoracoscopy, Tomography, X-Ray Computed
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