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2016年职称英语《卫生类》阅读判断题（8）

发表时间：2015/6/10 17:14:34 来源：互联网点击关注微信：

阅读下面这篇短文，短文后列出7个句子，请根据短文的内容对每个句子做出判断。

Stem Cell Therapy May Help Repair the Heart

According to scientists in the USA,stem cell therapy may one day be able to

repair the hearts of people with heart failure.Researchers at Pittsburgh

University School of Medicine examined 20 patients who had severe heart failure

and were going to have surgery.

They injected stem cells into the parts of their hearts that were damaged.They

then compared their hearts with those of people who had undergone surgery

without having the stem cells injected into them(they had also suffered from

severe heart failure).The patients who had the stem cells injected had hearts

that were able to pump(用泵抽水)more blood than the others.

According to Professor Robert Kormos,one of,the researchers, these results

could revolutionize heart treatment.Although previous studies had indicated

that there might be a benefit, this is the first study that has actually proved

that stem cell therapy can help the failing heart work better.

All the patients in this study had hearts that could not pump blood

properly.The scientists measured their ejection fraction(射血分数).This is a

measure of heart performance;you measure how much blood is being pumped out by

the left ventricle(心室)

Healthy people's ejection fraction is about 55%.These patients had ejection

fraction of under 35%.They all had by-pass surgery(搭桥手术)performed on

them.Some of the patients had stem cells taken from their hip bones and

injected into 25-30 sites in the damaged heart muscle.Six months later their

ejection fraction rate was 46.1% while those who just had surgery but no stem

cell injections averaged 37.2%.

No side effects were reported.

Heart failure is a common problem all over the world.In the UK alone about

650,000 people suffer from heart failure every year.As the number of people

suffering from heart failure increases in the world in general these findings

are particularly significant.

Current treatments relieve the symptoms.This new stem cell therapy actually

repairs the damaged muscle in the heart and has the potential of curing the

disease.

1 The 20 patients had stem cell injections instead of surgery.