Rigid versus semi-rigid thoracoscopy for thediagnosis of pleural disease: A randomized pilot study.
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Rigid versus semi-rigid thoracoscopy for thediagnosis of pleural disease: A randomized pilot study.
Respirology. 2013 Feb 19;
Authors: Rozman A, Camlek L, Marc-Malovrh M, Triller N, Kern I
Abstract
BACKGROUND AND OBJECTIVE: Thoracoscopy with a semirigid instrument is a recent technique successfully used for diagnosing pleural diseases. However, there are concerns about the diagnostic adequacy of biopsy samples obtained by semirigid procedures when compared to rigid thoracoscopy. The purpose of this study was to compare the size, quality and diagnostic adequacy of biopsy specimens obtained at semirigid and rigid thoracoscopy in a prospective, randomized fashion. METHODS: Patients with pleural effusion of unknown origin and/or pleural irregularities suspicious for pleural malignancy were included after less invasive means of diagnosis had failed. All procedures were performed under local anesthesia with intravenous sedation/analgesia with a single point of entry. Patients were randomly assigned to a rigid instrument procedure (Olympus EndoEYE WA50120A, forceps) or semirigid instrument procedure (Olympus LTF-160, FB-55CR-1 forceps). RESULTS: Eighty-four patients were randomized. Five of them were excluded because of lack of pleural space. Thirty-eight patients were assigned to a rigid and forty-one to a semirigid procedure, with mean follow-up 24.1 (±8.1) months after the procedure. The average size of the sample obtained by rigid thoracoscopy was 24.7mm(2) (±12.9), and 11.7mm(2) (±7.6) by semirigid thoracoscopy. There were no differences in the quality and interpretability of the specimens assessed by the pathologist. The diagnostic accuracy was 100% for the rigid procedure and 97.6% for the semirigid procedure. DISCUSSION: The samples obtained by semirigid thoracoscopy were smaller, but of adequate quality. The diagnostic accuracy was comparable to that of rigid thoracoscopy in the evaluation of pleural disease.
PMID: 23418922 [PubMed - as supplied by publisher]