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胎兒打嗝是什么感覺，胎兒打嗝的原因

出處：媽媽育兒網(wǎng) 日期：2012-10-29 10:49:32 編輯：admin

胎兒打嗝是什么感覺，胎兒打嗝是怎么回事，原因又有哪些呢？那天看到有一位媽媽正在問，說她有時候覺得寶寶會有規(guī)律地動，每隔2、3秒動一下，在同一個位置，而且持續(xù)2、3分鐘。一開始覺得是胎動，回來覺得，胎動沒那么規(guī)律呀。這是不是就是胎兒打嗝呀？

提起呃逆(俗稱打嗝)，幾乎每個人都發(fā)生過，但是，說到孕婦腹中的胎兒也會發(fā)生呃逆，就鮮為人知了。孕婦腹部出現(xiàn)的陣發(fā)性跳動，不同于胎動，實際上就是胎兒在呃逆。呃逆的時間沒有規(guī)律，每天1—5次不等，95%的胎兒的呃逆頻率在3—5分鐘之間，頻率慢的每分鐘少于10次，快的可達(dá)50次以上。

胎兒呃逆是由于胎兒的橫隔肌痙攣所致。它是胎兒呼吸功能發(fā)育的早期階段一種特殊形式的胎兒呼吸運動。胎兒呃逆發(fā)生時，孕婦腹部出現(xiàn)局部的固定的跳動。其實，胎兒呃逆是正常生理現(xiàn)象，出現(xiàn)后不必緊張，對于母嬰并無不利影響，因而不需要特殊處理。


 


 

由于胎兒呃逆在孕婦腹部的位置，孕婦還可利用這一特點自我監(jiān)測胎位的變化，如果這種跳動在腹部明顯上升，有可能出現(xiàn)了胎位異常，應(yīng)及時就診。

據(jù)英國《新科學(xué)家》雜志報道，打嗝是人體用于吸氣的肌肉突然收縮導(dǎo)致的。這些肌肉開始運動時，聲門關(guān)閉氣管，發(fā)出特殊的“嗝”聲。超聲波掃描發(fā)現(xiàn)，未出生的胎兒在有呼吸運動之前就會打嗝?？茖W(xué)家們認(rèn)為，胎兒打嗝很可能是哺乳動作的一種早期體現(xiàn)，就像幼兒學(xué)會走路之前先學(xué)會爬一樣。嬰兒吮吸乳汁的動作與打嗝非常相像，在肌肉運動時聲門關(guān)閉，以防止乳汁進入肺部。

胎兒打嗝時有什么感覺

在產(chǎn)前檢查時，醫(yī)生經(jīng)?？吹交蚵牭?，孕婦的腹壁出現(xiàn)陣發(fā)性、規(guī)律性跳動。這種跳動現(xiàn)象一般出現(xiàn)的頻率是每分鐘15-30次，每次持續(xù)時間為3-15分鐘，每天出現(xiàn)3-5次不等。人們以為是胎兒在子宮里缺氧，或是懷疑胎兒有心臟病而感到了胎心跳動，很多產(chǎn)科醫(yī)生也難以作出解釋，甚至有時還會盲目地給孕婦吸氧。

而大量的臨床研究發(fā)現(xiàn)，這種現(xiàn)象其實是胎兒在打嗝。研究者通過B超觀察到，當(dāng)孕婦的腹壁出現(xiàn)陣發(fā)性跳動時，與此同時胎兒的下胸及上腹也出現(xiàn)陣發(fā)性抽動，而且膈肌也在上下運動，但胎兒的四肢卻并沒有隨之運動。

其實，很多胎兒都會在子宮里打嗝，不過是有些孕婦難以將它與胎兒區(qū)別開來，或是反應(yīng)遲鈍而沒有感覺到。胎兒打嗝并不是一種異常，只是一種生理現(xiàn)象，不必引起緊張情緒，甚至采取錯誤的醫(yī)療干預(yù)。了解胎兒打嗝的現(xiàn)象，對于監(jiān)測胎兒的健康具有意義。

本文由媽媽育兒網(wǎng) （http://m.15thirdstreetblackrock.com/）小編編輯整理

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