CT检查能够帮助吸烟者戒烟

根据一项最新研究的结果：吸烟者接受小剂量胸部螺旋CT扫描筛查肺癌，如果多次发现异常病变的话，比较容易戒烟。

这项研究结果发表在2005年5月15日《癌症》期刊上，显示接受一次或者多次CT扫描的吸烟者发现异常病变的话，更加有可能停止吸烟，并在三年的时间内保持戒烟。因为多达70％的接受筛查患者报告说他们打算戒烟，许多临床医生对使用CT检查结果做为劝说吸烟者戒烟的良机十分感兴趣。较早期的研究已经证明：近期诊断发现有医学病变的吸烟者停止吸烟的兴趣更大，也更为成功。

美国Mayo诊所的研究人员，监测了926例基础吸烟者以及594例前吸烟者，他们接受了连续三年胸部螺旋CT扫描检查。结果发现：吸烟者出现异常检查次数越多，停止吸烟并在该项研究三年内不再吸烟的可能性越大。在第三此随访之后，42％有三次异常检查结果的基础吸烟者不再吸烟，而有二次异常结果的吸烟者是28％，一次或者没有异常检查结果的分别是24％和20％。在基础吸烟者中能够增加戒烟的影响因子是：年纪较大、CT检查异常之前的时间、以及基础肺功能下降。

作者在论文中总结说：“多次肺部CT扫描能够增强初级和二级预防努力的结果，使用肺部CT扫描进行筛查，能够增强医疗保健提供者的互动，增加对罹患癌症危险的认识、加强戒烟的效果。”

Abnormal CT May Help Smokers Quit
 
Smokers who receive multiple abnormal findings with low-dose, spiral chest computed tomography (CT) scans to screen for lung cancer are more apt to quit, according to a new study.

The study, which was published in the May 15, 2005, issue of the journal Cancer, showed that smokers who receive one or more abnormal CT scans are increasingly likely to stop smoking and remain abstinent from smoking over three years. Because up to 70% of smokers who undergo screening reported that they want to quit, many clinicians have been interested in using CT scan findings as an opportunity to inspire smokers to quit. Earlier studies have demonstrated smokers recently diagnosed with medical problems are more interested, and successful at, stopping.

Researchers at the Mayo Clinic (Rochester, MN, USA; www.mayo.edu), monitored 926 baseline smokers and 594 former smokers who received three consecutive annual spiral chest CT scans. They discovered that the more abnormal scans the smokers received, the more likely they were to stop smoking and remain smoke-free at the end of three years. After the third follow-up visit, 42% of baseline smokers who had three abnormal scans were smoke-free, compared to 28% who had two abnormal scans, and 24% and 20% who had one or no abnormal scans, respectively. Factors that added to smoking cessation among baseline smokers were older age, previous year abnormal CT scan, and decreased baseline pulmonary function.

The authors concluded in their article, “multiple lung CT scans may enhance primary and secondary prevention efforts by potentially providing increased interaction with health care providers, increased cognitions about one’s own cancer risk, and reinforcement for smoking abstinence with lung CT scan screening.”