南非利用核技术改善纯母乳喂养 监测

由于核技术帮助母亲在婴儿的头六个月 更加坚持不懈地进行纯母乳喂养,一 度处于营养不良、疾病甚至死亡的高风险 中的南非婴儿现在有了更光明的未来。

南非德班Cato Manor 诊所里的母亲们。 (图/ H. Mulol)

由于核技术帮助母亲在婴儿的头六个月 更加坚持不懈地进行纯母乳喂养,一 度处于营养不良、疾病甚至死亡的高风险 中的南非婴儿现在有了更光明的未来。

世界卫生组织指出,相比用配方奶粉 喂养的孩子,母乳喂养的孩子抵抗疾病和 感染的能力更强,并建议,从出生到六个 月以下的婴儿应只喝母乳。研究表明,母 乳喂养的宝宝不太可能在以后的生活中出 现糖尿病、心血管疾病和癌症。

南非夸祖鲁-纳塔尔大学儿科和儿童健 康系教授Anna Coutsoudis 说:“南非纯母乳 喂养率非常低,加强母乳喂养作法以扭 转我国可怕的婴儿死亡率目前已成为当 务之急。”

医疗保健从业者,尤其是发展中国家的那些从业者,一直在诊所、保健中心和产 房提倡这个概念,以预防婴幼儿营养不 良、疾病和死亡。

南非卫生官员认为他们的努力是成功 的,因为以母亲的母乳喂养频率自报告为 基础进行的研究显示,母乳喂养数字增加 显著。然而,婴儿死亡率并没有表现出相 应的下降。

据南非国家官方统计数据,2013年, 南非新生婴儿约为110万,而在一年之内 每1000个活产婴儿有33个最终死亡。 有地方一定出了问题。

核测谎仪

2010年,在国际原子能机构的资助和 支持下,南非研究人员开始利用称作“氘 稀释法”(见方框资料)的非放射性核方 法来获取有多少婴儿正在母乳喂养和何时 在宝宝的饮食引入辅食的准确数字。

Coutsoudis说,结果令人十分沮丧, 与利用氘稀释法得到的较准确资料相比, 母亲的纯母乳喂养报告估计过高。

Coutsoudis和她的健康研究团队在利 用这种技术方面得到国际原子能机构的培 训和支持后,能够更准确地评估旨在改善 纯母乳喂养率计划的影响,据夸祖鲁-纳塔 尔大学2008年的研究,三个月大婴儿的纯 母乳喂养率估计为6%,而六个月大估计 只有1%。

Coutsoudis说:“2012年,我们制定了 一项长期指导计划,新妈妈同时作为母乳 喂养顾问接受培训。氘稀释法被用于验证 报告的母乳喂养作法。我们能够证明,指 导和咨询计划对改善纯母乳喂养率有很大的影响。”到计划结束时,纯母乳喂养率 显著提高,六个月大婴儿的纯母乳喂养率 达到33.3%,而三个月大婴儿的纯母乳喂养 率达到13.7%。

Coutsoudis说,新的指导和咨询计划一 直非常有效,因而一些母亲不愿过早地引 入辅食。

正如Coutsoudis所言,以下是K女士和 C女士介绍的情况:

“K女士说:‘我的朋友来我家看望我 问道:你的宝宝这么胖,看起来这么好, 你喂宝宝什么粥。我回答说:我不喂粥, 只喂母乳。’”

“她的朋友们不信,她们翻她的柜子 看她有没有粥,结果没有。她接着随口告 诉她们所有母亲是怎么产大量的奶来给宝 宝在头六个月只喂母乳,那就是经常给宝 宝喂奶——小的时候每2至3小时一次。”

“C女士说,她去诊所进行免疫检查, 护士/医护人员告诉她,她的孩子太胖了, 她应停止哺乳。她告诉护士,她只给宝宝喂母乳,吃母乳的孩子吃多少都不多,所以她不打算给她 的孩子少吃。”

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(资料来源:南非夸祖鲁-纳塔尔大学/Helen Mulol)

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在南非德班Cato Manor 诊所对婴儿进行唾液取样。 (图/ H. Mulol)

Having IAEA training and support in acquiring equipment to use this technique made it possible for Coutsoudis and her team of health researchers to more accurately assess the impact of programmes designed to improve the poor exclusive breastfeeding rates, which were estimated to be 6 per cent at three months old and only 1 per cent at six months old, according to a 2008 study in KwaZulu-Natal.

“In 2012, we instituted a long term mentoring programme with new mothers who were simultaneously trained as breastfeeding counsellors. The deuterium dilution technique was used to validate reported breastfeeding practices. We were able to show that the mentoring and counselling programme had a big impact on improving exclusive breastfeeding rates,” said Coutsoudis. By the end of the programme, exclusive breastfeeding rates had improved significantly, to 33.3 per cent at three months and 13.7 per cent at six months.

The new mentorship and counselling programme has been so effective that Coutsoudis said there are mothers resisting the strong external pressure to introduce complementary foods too early.

Here are the accounts, as told by Coutsoudis, of Ms K and Ms C:

“Ms K said, ‘My friends came to visit me at my house and asked “what porridge are you feeding your baby as she is so fat and looks so good’. I replied: ‘I am not giving porridge, only breast milk.’

“Her friends did not believe her so they looked in her cupboard to see if she had any porridge and there was none. She proceeded to inform them very casually about how all mothers can produce a lot of milk to feed their babies on breast milk only in the first six months by feeding the baby often — every 2 to 3 hours when they are small.”

“Ms C said she went to the clinic for her immunization visit and the sister [nurse/healthcare worker] told her that her baby was too fat and she should stop breastfeeding, she told the sister she was only giving the baby breast milk and you can’t overfeed a breastfed baby so she was not going to feed her baby less.”

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