"As lungs get progressively worse, the ability of the body to compensate goes down and the heart can't pump strongly enough," says Norman Edelman of the American lung Association.
“当肺部日益恶化时，机体代偿能力下降，心脏泵血机能不够强”，美国肺协的诺曼·艾得曼说。
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Although off-pump surgery may not be suitable for every situation (it was not in my case), it may be an option for some patients who cannot tolerate the stress of the heart-lung machine.