A Modified Outer Cannula Can Help Thoracentesis After Pleural Biopsy скачать в хорошем качестве

A Modified Outer Cannula Can Help Thoracentesis After Pleural Biopsy

COMMUNICATIONS TO THE EDITOR| VOLUME 112, ISSUE 1, P296, JULY 01, 1997 A Modified Outer Cannula Can Help Thoracentesis After Pleural Biopsy - To the Editor Roberto de Menezes Lyra, MSc https://journal.chestnet.org/article/... When a pleural biopsy is performed, the thoracentesis is made with the outer cannula of the pleural biopsy needle. The two types most frequently used are Cope's1 needle and Abram's2 needle; both have been shown to have the same efficiency.3 During thoracentesis, the negative pressure can cause the aspiration of lung tissue, resulting in obstruction of the distal hole of the outer cannula and interrupting the drainage. The change in the position of the outer cannula does not always help to prevent this phenomenon. We have proposed a modification in the outer cannula of Cope's needle to solve this problem. Four holes, diametrically opposed, each one 1 mm in diameter and located 2.5 mm from the distal extremity, are made around the outer cannula (Fig 1). These extra holes allow drainage even when the distal hole is obstructed. FIGURE 1 The arrow shows the location of the four extra holes in the outer cannula. References 1. COPE C, BERNHARDT H. HOOK-NEEDLE BIOPSY OF PLEURA, PERICARDIUM, PERITONEUM AND SYNOVIUM. Am J Med. 1963 Aug;35:189-95. doi: 10.1016/0002-9343(63)90210-9. PMID: 14057621. 2. ABRAMS LD. A pleural-biopsy punch. Lancet. 1958 Jan 4;1(7010):30-1. doi: 10.1016/s0140-6736(58)92521-2. PMID: 13492658. 3. Morrone N, Algranti E, Barreto E. Pleural biopsy with Cope and Abrams needles. Chest. 1987 Dec;92(6):1050-2. doi: 10.1378/chest.92.6.1050. PMID: 3677810. DOI: https://doi.org/10.1378/chest.112.1.296 Copyright © 1997 The American College of Chest Physicians. Published by Elsevier Inc. All rights reserved. https://journal.chestnet.org/article/...