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Cancer. 1993 Jul 15;72(2):389-93.

Thoracoscopy in pleural malignant mesothelioma: a prospective study of 188 consecutive patients. Part 1: Diagnosis.

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  • 1Department of Pneumology, Aix-Marseille University Medical School, France.

Abstract

BACKGROUND:

To compare the diagnostic value of thoracoscopic biopsy, fluid cytology, and Abrams needle biopsy, the authors analyzed prospectively the records of 188 patients with malignant pleural mesothelioma examined between 1973 and 1990. Symptoms were pleural effusion in 173 patients, empyema in 1, spontaneous pneumothorax in 1, and radiologic tumor without effusion in 13.

METHODS:

Thoracoscopy was performed using a rigid thoracoscope under local anesthesia with neuroleptanalgesia. A total of 10-20 biopsies were taken from the parietal, diaphragmatic, and visceral pleura. Each diagnosis was confirmed by the French panel of mesothelioma pathologists. To prevent parietal seeding, radiation therapy at a dose of 21 Gy was administered during a period of 3 days to all points of entry.

RESULTS:

Tolerance to thoracoscopy was good. The only complications were subcutaneous emphysema (1 patient), local pleural infection (4 patients), hemorrhage of less than 100 ml (3 patients), and temperature of 38-38.5 degrees C (26 patients). In 137 patients, the cavity was free, and complete endoscopic inspection was achieved. In 51 patients, inspection was limited by adhesions that were severed to obtain biopsy. Nonspecific inflammation was observed in 12 patients (6.5%), nodules in 92 (49%), thickening in 21 (11%), and mixed lesions in 63 (33.5%). Diagnosis was achieved by thoracoscopy in 98% of patients, by fluid cytology in 26%, and by needle biopsy in 21%.

CONCLUSION:

In most patients, thoracoscopy allows complete visualization of the pleural cavity and provides high-quality biopsy samples. The diagnostic accuracy of thoracoscopy is similar to open thoracotomy, but the procedure is far less invasive, usually requiring that the patient remain in the hospital only 1 day.

PMID:
8319170
[PubMed - indexed for MEDLINE]
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