Conclusion The double-channel drainage tube can to the greatest extent drain away hydrops to greatly expand the thoracic tissues and to make splanchnic layer pleurae adhere firmly.

• 结论双腔管引流可最大限度排净胸水,使肺组织充分膨胀,脏层与壁层胸膜紧贴在一起,产生粘连,从而抑制大量渗出。