pericardial paracentesis

例句：

1. 1. The heart is enclosed in a sac called the pericardium.
   心脏被一个叫做心包膜的囊包裹。
2. 2.The pericardium is responsible for protecting the heart from injury.
   心包膜负责保护心脏免受损伤。
3. 3.In some cases, the pericardium can become ruptured and cause severe symptoms.
   在某些情况下，心包膜可能会破裂并引起严重症状。