央视主持人肖晓琳因结肠癌去世,预防结肠癌究竟该怎么吃

2017-07-15 肖蓓 澎湃新闻

近日,61岁的央视主持人、《今日说法》创始人肖晓琳因患结肠癌,在美国治病期间不幸离世。消息一出,令人唏嘘,也再次引发了人们对结肠癌这一恶性肿瘤的关注。近些年,随着人们生活方式的改变、饮食结构逐渐向高脂肪、低纤维转变,加上作息习惯和环境污染等因素,导致大肠癌发病率不断上升。那么,结肠癌有哪些诱发因素?早期如何发现?日常生活中应该如何预防呢?症状易与痔疮混淆结直肠癌,又称“大肠癌”,其发病率和死亡率在

近日,61岁的央视主持人、《今日说法》创始人肖晓琳因患结肠癌,在美国治病期间不幸离世。消息一出,令人唏嘘,也再次引发了人们对结肠癌这一恶性肿瘤的关注。

近些年,随着人们生活方式的改变、饮食结构逐渐向高脂肪、低纤维转变,加上作息习惯和环境污染等因素,导致大肠癌发病率不断上升。那么,结肠癌有哪些诱发因素?早期如何发现?日常生活中应该如何预防呢?

症状易与痔疮混淆

结直肠癌,又称“大肠癌”,其发病率和死亡率在我国逐年升高,尤其在上海、北京和广州等大中城市已成为消化道第一位的恶性肿瘤。根据上海的肿瘤登记报告,结直肠癌发病率由上世纪70年代初的12/10万增长到目前的56/10万,增速约为每年4.2%,远超2%的国际水平,位居各类恶性肿瘤第二位,仅次于肺癌

在大肠癌中,以盲升结肠、乙状结肠和直肠癌的发病率最高,直肠癌和乙状结肠癌多表现为便血和肠梗阻,较易引起人们重视;而盲升结肠癌多以贫血为主要表现,容易延误诊断时间。

长征医院普外一科(结直肠肛门外科)主任胡志强指出,大肠癌早期症状包括:排便习惯改变,多表现为排便次数增多、腹泻、里急后重感,或便秘、排便困难,或者两者交替出现。大便性状改变,主要是便血、黏液便和大便形状变细变扁。腹痛,常为定位不确切的持续性隐痛,或仅为腹部不适或腹胀感。腹部肿块,多为肿瘤本身引起。

肠梗阻症状,多表现为慢性低位不完全性肠梗阻。会阴部疼痛,常为直肠癌的盆腔广泛转移所致。全身症状:由于慢性失血、癌肿溃破、感染、毒素吸收等,出现贫血、消瘦、乏力、低热等,其中尤以贫血最易忽视。

胡志前强调,老百姓对大肠癌早期重视不够,往往与痔疮混为一谈。曾有一位患者经常发现自己大便中带血的情况,因为既往有“痔疮”史,就到药店买来治疗痔疮的药物,用药几天后,不便血了,就没太在意。但便血的情况时有发生,到医院就诊时被诊断为直肠癌,而且位置很低,也就是说离肛门很近。我们为她施行了腹腔镜直肠癌内括约肌切除术(ISR术),根治了低位直肠癌,保留了肛门,而且腹部没有切口。经过一年的随访,肛门功能良好,患者获得了较好的术后生活质量。

值得注意的是,大肠癌是有遗传性的,这位患者父亲及一个哥哥均是大肠癌患者,父亲还死于大肠癌。有两位一级亲属(包括父母、兄弟姐妹及子女)患大肠癌,就是大肠癌高危人群,即使没有临床症状也应到医院做大肠癌筛查

另外,肠癌容易肝转移,25-50%的患者有肝转移。此类患者手术后要定期复查,前三年半年复查一次,五年后二年复查一次。长征医院启动一项研究,基于第二代基因测序技术来预测肠癌肝转移,期望抽血检查就能预测肝转移,以便尽早干预治疗 。

高危人群需定期做肠镜

胡志前指出,大肠癌的高危人群,即使无症状也建议1~2年做肠镜检查1次,这样有利发现癌前期病变——大肠腺瘤和早期癌,使患者能获得及时治疗。

高危人群包括:大肠癌高发区40岁以上有症状的人群、患过大肠癌手术后的人群、患过大肠息肉经肠镜下电灼术后的人群、有大肠癌家族史的直系亲属、有大肠息肉家族史的直系亲属。溃疡型结肠炎患者、有血吸虫性直肠肉芽肿的患者、胆囊切除术后的人群。

一般人群:对于50岁以上的患者,尤其需要引起注意。每年1次粪便隐血试验,每3年1次结肠镜检查。据统计男性患结直肠癌的几率比女性患者高35%,因此,男性更因引起重视。

发病原因有哪些

胡志前表示,发病原因尚不清楚,主要与下列因素有关:

第一,食用了致癌物质。

第二,结、直肠癌的慢性炎症:如溃疡性结肠炎、血吸虫病使肠黏膜反复破坏和修复而癌变。

第三,遗传因素:抑癌基因突变和遗传不稳定性导致成为结、直肠癌的易感人群。

第四,癌前病变:如直肠腺瘤,尤其是绒毛状腺瘤更为重要。

日常生活如何预防

胡志前表示,日本、韩国、中国是胃癌的高发地区,因为都喜欢吃腌、炸、熏的食物,而大肠癌的发病原因与饮食过度精细有关,摄入高脂肪、低纤维的饮食结构,增加了患大肠癌的几率。

大肠癌的预防,改善饮食、规律生活是关键,平时要养成健康的生活方式。首先,多吃纤维食物。要改变高脂肪、高蛋白质、低纤维的饮食结构,多吃蔬菜、水果,红肉、烟熏烧烤的要少吃。植物纤维可加速食物的运动,使粪便变软,使排便顺利。

其次,要多运动。保持每日大约20分钟的中度日常运动,有助于排泄物通过肠道,协调排泄。有研究表明,运动可以将患大肠癌的危险降低一半。

养成定时排便的生活习惯。大便中的毒素在体内积累时间过长,有害物质被肠道吸收,就可能出现精神萎靡不振、头晕乏力、食欲减退和口腔异味等症状。长此以往,容易导致便秘、肛裂、痔疮等肛肠疾病。

另外,积极治疗已患的大肠疾病,如溃疡性结肠炎、肠腺瘤等。如有大肠癌的高危因素存在,如家族性结肠癌或息肉病、家族性多发性息肉、溃疡性结肠炎,应定期去医院咨询或检查,以便掌握自己的身体状况。

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    2017-07-31 1e0cdf4em36(暂无匿称)

    防癌抗癌,普及结肠镜

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    2017-07-16 往日如昨

    学习了谢谢分享

    0

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    2017-07-16 真真の真

    这篇内容好,谢谢

    0

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    2017-07-16 蔬菜

    好内容,谢谢分享,学习了

    0

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    2017-07-16 ylzr123

    感谢小编为我们准备了如此丰盛的精神大餐,同时也向作者致谢!认真学习了,点赞!

    0

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