Radiology:乳腺癌常规筛查一定要重视!为女性敲响警钟!

2021-04-28 shaosai MedSci原创

乳腺癌筛查对以人群为基础的乳腺癌死亡率的影响不会立即显现,而是需要数年的时间积累得以呈现。

 

乳腺癌筛查对以人群为基础的乳腺癌死亡率的影响不会立即显现,而是需要数年的时间积累得以呈现。这种保护作用在筛查结束后仍然存在数年,并且有证据表明,重复进行常规的乳腺癌筛查有显著的益处。在随机对照试验和服务筛查中都观察到,即使是最近参加过筛查的有症状乳腺癌患者也比未参加筛查的乳腺癌患者具有更高的生存优势。这种优势主要是由于常规筛查较早发现了大多数浸润性乳腺癌,尤其是肿瘤体积较小且淋巴结阳性率较低的分化较差的乳腺癌。对乳腺癌死亡率的病例对照分析发现,曾经参与过常规乳腺癌筛查的患者与死亡率降低相关,死亡率的降低同时也与上次筛查以来的间隔时间减少有关。

近日,发表在Radiology杂志的一项研究评估了参与定期连续乳腺钼靶筛查对乳腺癌死亡率的影响,使临床进一步提高对参与乳腺癌定期筛查对患者预后影响评估的准确性,并使医生及患者更多地了解定期参加筛查对降低乳腺癌死亡率的意义。

从1992年到2016年,有资格在9个县进行乳腺钼靶筛查的瑞典妇女的参与数据与来自登记处和地区癌症中心的乳腺癌诊断、病因和死亡日期的数据相关联。以发生率为基础的乳腺癌死亡率是根据女性是否在诊断前参加过最近的筛查检查(间断性参与者)、倒数第二次筛查检查(失效参与者)、两次检查(连续参与者)或两次检查都没有参加(连续未参与者)来计算的。用泊松回归分析比率。同时还分析了10年内致命的乳腺癌发病率。

本研究的研究对象为549091名女性(平均年龄58.9岁±6.7岁[标准差])。四组受试者人数如下:连续参与者392135人;间断性参与者,41746;失效参与者30945人;连续非参与者84265人。连续参与者的乳腺癌死亡率降低了49%(相对风险[RR],0.51;95%置信区间:0.48,0.55;P < .001)以及在诊断的10年内死于乳腺癌的风险降低50% (RR, 0.50;95% CI: 0.46, 0.55; P < .001)。失效和间断性参与者降低的幅度更小。连续参与者的两种结果的风险明显低于失效和间断性参与者。校正潜在偏差的分析对结果影响不大。

图 该图显示了1992年至2016年间瑞典9个县每10万人每年的乳腺癌累积死亡率(根据参与状况):连续参与者,接受了最后两次筛查;间断性参与者,仅接受最近一次的筛查;失效参与者,只接受了倒数第二项筛查;以及没有接受前两次检查的连续非参与者。随着随访筛查次数的增加,连续参与者乳腺癌累积死亡率最低。

本研究表明,定期接受乳房钼靶检查对于降低乳腺癌死亡风险十分必要,即使仅一次筛查检查的缺失都会使乳腺癌风险显着增加。这对于筛查年龄段的女性、临床医生和公共卫生决策者来说是十分重要的信息,这在社会内增强女性对乳腺癌常规筛查的重视敲响了警钟!

原文出处:

Stephen W Duffy,László Tabár,Amy Ming-Fang Yen,et al.Beneficial Effect of Consecutive Screening Mammography Examinations on Mortality from Breast Cancer: A Prospective Study.DOI:10.1148/radiol.2021203935

 

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    2021-06-02 ms4000000285367802

    学到了

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    2021-05-01 du杜杜

    学习学习,涨知识了

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    2021-04-28 carrotlyl

    长知识

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    2021-04-28 楠竹

    学习学习#肿瘤#

    0

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