Doctors say the fluid and scar tissue are an uncommon complication resulting from the quadruple bypass surgery Mr. Clinton had just six months ago.

医生说，肺部积水和疤痕是克林顿六个月前作心脏搭桥手术所引起的并发症，在类似手术中并不常见。

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He had suffered a massive heart attack and was rushed to the University Medical Center for quadruple-bypass surgery.

他突发心脏病，被紧急送到了“学院医疗中心”，进行心脏搭桥手术。

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Bill Clinton had multiple stress tests, all of which came back negative, not long before he had quadruple bypass surgery.

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In 2000, he underwent quadruple bypass surgery, and had hip surgery following a fall in 2007, according to his IMDb profile.

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Mr Kerry made two phone calls soliciting advice from Mr Clinton, who was lying in a hospital bed awaiting quadruple bypass surgery.

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