9．呼吸器外科における持続吸引装置

Continuous Chest Drainage Systems in Thoracic Surgery

胸部外科領域におけるドレーン管理では，治療のため胸腔内の排液・排気を行うこと，胸腔内の情報を得ることが重要となる．その際，液体と気体を同時に管理することが胸腔ドレーン管理における特殊な点である．呼吸器外科術後管理を含めて適切な胸腔ドレーン管理を行うために，持続吸引装置はなくてはならないものである．本稿では胸腔内環境とドレナージシステムのメカニズムについて触れたうえで，現在主に使用されている胸腔ドレナージシステムの種類やその違いを述べていく．

In the management of chest drain after thoracic surgery, it is important to egest fluid and air which accumulate in the pleural cavity and to gain information such as air leakage, bleeding or pus discharge. To achieve these purpose, continuous chest drainage system is necessary for thoracic surgery. In addition, we have to understand the particularity in the pleural cavity and the structure of continuous chest drainage system. Traditional drainage system is based on 3-bottle system. Recently, we can use new drainage system, such as Thopaz, which is called digital drainage system. There are several studies comparing digital drainage system with traditional drainage system, but the superiority of digital drainage system to traditional drainage system is not confirmed.