Tsuyoshi Takahashi1, Mitsuaki Kawashima2, Hideki Kuwano2, Kazuhiro Nagayama2, Jyunichi Nitadori2, Masaki Anraku2, Masaaki Sato2, Tomohiro Murakawa2,3, Jun Nakajima2. 1. Department of Thoracic Surgery, University of Tokyo Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan. ttakahashi-tks@umin.ac.jp. 2. Department of Thoracic Surgery, University of Tokyo Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan. 3. Department of Thoracic Surgery, Kansai Medical University, 2-3-1 Shinmachi, Hirakata, Osaka, 573-1191, Japan.
Abstract
PURPOSE: The azygoesophageal recess (AER) is known as a possible cause of bulla formation in patients with spontaneous pneumothorax. However, there has been little focus on the depth of the AER. We evaluated the relationship between the depth of the AER and pneumothorax development. METHODS: We conducted a retrospective study of 80 spontaneous pneumothorax patients who underwent surgery at our institution. We evaluated the depth of the AER on preoperative computed tomography scans. RESULTS: Ruptured bullae at the AER were found in 12 patients (52.2%) with secondary spontaneous pneumothorax (SSP) and 8 patients (14.0%) with primary spontaneous pneumothorax (PSP) (p < 0.001). In patients with ruptured bullae at the AER, 10 SSP patients (83.3%) had a deep AER while only 2 PSP patients (25%) had a deep AER (p = 0.015). CONCLUSIONS: A deep AER was more frequently associated with SSP than with PSP. A deep AER may contributes to bulla formation and rupture in SSP patients.
PURPOSE: The azygoesophageal recess (AER) is known as a possible cause of bulla formation in patients with spontaneous pneumothorax. However, there has been little focus on the depth of the AER. We evaluated the relationship between the depth of the AER and pneumothorax development. METHODS: We conducted a retrospective study of 80 spontaneous pneumothorax patients who underwent surgery at our institution. We evaluated the depth of the AER on preoperative computed tomography scans. RESULTS: Ruptured bullae at the AER were found in 12 patients (52.2%) with secondary spontaneous pneumothorax (SSP) and 8 patients (14.0%) with primary spontaneous pneumothorax (PSP) (p < 0.001). In patients with ruptured bullae at the AER, 10 SSP patients (83.3%) had a deep AER while only 2 PSPpatients (25%) had a deep AER (p = 0.015). CONCLUSIONS: A deep AER was more frequently associated with SSP than with PSP. A deep AER may contributes to bulla formation and rupture in SSP patients.
Authors: Kasra Shaikhrezai; Alexandra I Thompson; Caroline Parkin; Steven Stamenkovic; William S Walker Journal: Eur J Cardiothorac Surg Date: 2010-11-27 Impact factor: 4.191
Authors: Aaron R Casha; Alexander Manché; Ruben Gatt; Wiktor Wolak; Krzysztof Dudek; Marilyn Gauci; Pierre Schembri-Wismayer; Marie-Therese Camilleri-Podesta; Joseph N Grima Journal: Eur J Cardiothorac Surg Date: 2014-03-18 Impact factor: 4.191