不少小學教師授課時經常嗌破喉嚨，隨時失聲。中文大學研究十八區小學教師聲線情況，發現多達四成二教師有聲沙及失聲等聲線障礙，三成一受訪教師曾因聲線問題而請假，最嚴重要請假「養聲」一年。中大推算全港有九千三百九十八名小學老師深受聲線障礙困擾。
中大耳鼻咽喉頭頸外科學系學術主管唐志輝指出，每年十月至十一月均是老師因聲線問題求診的高峰期，估計與接近考試趕課程進度有關。他指聲帶問題由結繭、生息肉、水腫、囊腫，以至聲帶出血，最嚴重需要做手術切除囊腫。中大○七至○九年以問卷調查三百五十九名教師的教學情況，並進行聲線檢查。研究發現有四成二、即一百五十二名教師有聲線障礙；一成七、即六十三名有聲帶病變，當中五十名有聲帶結節，五名有息肉。
研究證實，女教師有聲線障礙的比率較男教師高二點二五倍。該系言語治療師羅家東解釋，女性聲帶拍動頻率較男性頻密，增加磨損，但女性聲帶的吸震及修補損傷功能均較弱，故較易有聲線問題。此外，每堂授課多於三十五分鐘的教師，聲線出問題的機會高一點七倍。每班學生愈多，老師有聲線問題愈普遍，假設每班學生由三十人增至三十五人，風險高一點三四倍；若增至每班四十人，風險增加一點八倍。
該系言語治療科主管李月裳指，喉糖及薄荷飲品只可紓緩喉部不適，建議聲線有問題的教師盡快求診及訓練正確用聲方法。
該系名譽臨床助理教授何雅兒警告，教師不應拖延聲線問題，否則惡化後可致長期失聲。
Sources:
http://the-sun.on.cc/cnt/news/20101112/00410_030.html
Showing posts with label vocal cord nodules. Show all posts
Showing posts with label vocal cord nodules. Show all posts
Thursday, November 11, 2010
Sunday, June 20, 2010
聲沙
聲帶 (vocal cords) 位於呼吸道上端，左右各一，肺部呼出空氣流經聲帶令聲帶快速震動，產生聲音，再經咽、喉、鼻共鳴放大。當聲帶受損發炎腫脹，不能如常地開合及震動，便會造成聲沙 (hoarseness)。常見令聲帶腫脹的原因包括傷風感冒、發音時過度用力、胃酸倒流及喉嚨過敏。聲沙應減少說話，讓聲帶得以休息復原，若聲沙時仍持續發聲，可勞損聲帶，造成聲帶出血、結繭（長出小結）(cyst)、長息肉 (polyp)、結疤 (granuloma) 或產生聲帶溝，這時便需要接受治療。
一般來說，如果聲沙病情輕微，可透過言語治療 (speech therapy) 矯正發聲方法，讓聲帶休息逐漸康復，病情嚴重則需要施手術。完成治療後仍需接受言語治療、預防復發，並要培養保護聲帶的習慣，包括用適當的音量、音調和速度說話或歌唱、避免叫喊或高談過久、戒煙、戒酒、多喝水保持聲帶滋潤等。值得一提的是，聲沙也是喉癌的早期徵兆，倘若聲沙持續達四星期或以上，便要多加留意檢查。
Hoarseness is one of the most common complaints referred for ENT evaluation. It is often a result of abnormal vibration of the vocal cords. In order to produce a normal voice, both vocal cords need to come together and vibrate in synchrony. Diagnosis is by direct visualization of the vocal cords via laryngoscopic examination in the office. Processes that may impede normal vibratory function of the vocal cords include infection (eg. laryngitis), inflammation from vocal abuse or laryngeal reflux, benign vocal cord masses (eg. vocal nodules/ cysts/ polyps), and malignant laryngeal tumors. Speech therapy is often necessary to correct abnormal use of vocal cord muscles. Vocal hygiene such as hydration, smoking and alcohol cessation, and voice rest should be followed. Surgery is reserved for large lesions or persistent hoarseness refractory to speech therapy. If there are any concerns about a lesion on the vocal cord, a biopsy procedure under general anesthesia is recommended.
Sources:
http://the-sun.on.cc/cnt/news/20100621/00410_012.html
一般來說，如果聲沙病情輕微，可透過言語治療 (speech therapy) 矯正發聲方法，讓聲帶休息逐漸康復，病情嚴重則需要施手術。完成治療後仍需接受言語治療、預防復發，並要培養保護聲帶的習慣，包括用適當的音量、音調和速度說話或歌唱、避免叫喊或高談過久、戒煙、戒酒、多喝水保持聲帶滋潤等。值得一提的是，聲沙也是喉癌的早期徵兆，倘若聲沙持續達四星期或以上，便要多加留意檢查。
Hoarseness is one of the most common complaints referred for ENT evaluation. It is often a result of abnormal vibration of the vocal cords. In order to produce a normal voice, both vocal cords need to come together and vibrate in synchrony. Diagnosis is by direct visualization of the vocal cords via laryngoscopic examination in the office. Processes that may impede normal vibratory function of the vocal cords include infection (eg. laryngitis), inflammation from vocal abuse or laryngeal reflux, benign vocal cord masses (eg. vocal nodules/ cysts/ polyps), and malignant laryngeal tumors. Speech therapy is often necessary to correct abnormal use of vocal cord muscles. Vocal hygiene such as hydration, smoking and alcohol cessation, and voice rest should be followed. Surgery is reserved for large lesions or persistent hoarseness refractory to speech therapy. If there are any concerns about a lesion on the vocal cord, a biopsy procedure under general anesthesia is recommended.
Sources:
http://the-sun.on.cc/cnt/news/20100621/00410_012.html
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