{"id":24785,"date":"2023-04-19T23:11:18","date_gmt":"2023-04-19T16:11:18","guid":{"rendered":"http:\/\/noithathoaphat.in\/ctv\/?p=24785"},"modified":"2023-04-20T12:53:41","modified_gmt":"2023-04-20T05:53:41","slug":"gioi-thieu-may-noi-soi-tieu-hoa","status":"publish","type":"post","link":"http:\/\/noithathoaphat.in\/ctv\/index.php\/2023\/04\/19\/gioi-thieu-may-noi-soi-tieu-hoa\/","title":{"rendered":"Gi\u1edbi thi\u1ec7u m\u00e1y n\u1ed9i soi ti\u00eau ho\u00e1"},"content":{"rendered":"<p><strong>N\u1ed9i soi ti\u00eau ho\u00e1 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong y h\u1ecdc, \u0111\u1eb7c bi\u1ec7t n\u1ed9i soi ti\u00eau h\u00f3a l\u1ea1i c\u00e0ng \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng h\u01a1n, kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u01b0\u1ee3c trong ch\u1ea9n \u0111o\u00e1n v\u00e0 \u0111i\u1ec1u tr\u1ecb m\u1ed9t s\u1ed1 b\u1ec7nh l\u00fd ti\u00eau h\u00f3a. M\u00e1y n\u1ed9i soi ti\u00eau h\u00f3a \u0111\u00e3 t\u1eebng b\u01b0\u1edbc ph\u00e1t tri\u1ec3n t\u1eeb th\u00f4 s\u01a1 \u0111\u1ebfn hi\u1ec7n \u0111\u1ea1i nh\u1edd s\u1ef1 ph\u00e1t tri\u1ec3n m\u1ea1nh m\u1ebd c\u1ee7a khoa h\u1ecdc c\u00f4ng ngh\u1ec7.<\/strong><\/p>\n<h2>1. S\u01a1 l\u01b0\u1ee3c v\u1ec1 s\u1ef1 ph\u00e1t tri\u1ec3n n\u1ed9i soi ti\u00eau ho\u00e1 \u1ed1ng m\u1ec1m<\/h2>\n<p>Trong nh\u1eefng th\u1eadp ni\u00ean 30 \u0111\u1ebfn 60 c\u1ee7a th\u1ebf k\u1ef7 tr\u01b0\u1edbc, n\u1ed9i soi ti\u00eau h\u00f3a c\u00f3 ph\u00e1t tri\u1ec3n nh\u01b0ng h\u1ea7u h\u1ebft ch\u1ec9 gi\u00fap \u00edch cho vi\u1ec7c ch\u1ea9n \u0111o\u00e1n m\u1ed9t s\u1ed1 b\u1ec7nh l\u00fd ti\u00eau h\u00f3a th\u00f4ng th\u01b0\u1eddng. T\u1eeb n\u0103m 1970 \u0111\u1ebfn nay n\u1ed9i soi ti\u00eau h\u00f3a ng\u00e0y c\u00e0ng ph\u00e1t tri\u1ec3n m\u1ea1nh m\u1ebd c\u00f3 th\u1ec3 ch\u1ea9n \u0111o\u00e1n \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 b\u1ec7nh l\u00fd t\u1eeb \u0111\u01a1n gi\u1ea3n \u0111\u1ebfn ph\u1ee9c t\u1ea1p \u0111\u1eb7c bi\u1ec7t trong ch\u1ea9n \u0111o\u00e1n s\u1edbm b\u1ec7nh l\u00fd ung th\u01b0 \u0111\u01b0\u1eddng ti\u00eau h\u00f3a g\u00f3p ph\u1ea7n t\u1ea7m so\u00e1t, c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng sinh t\u1ed3n v\u00e0 c\u00f3 th\u1ec3 \u0111i\u1ec1u tr\u1ecb kh\u1ecfi b\u1ec7nh l\u00fd \u00e1c t\u00ednh n\u00e0y. B\u00ean c\u1ea1nh nh\u1eefng ti\u1ebfn b\u1ed9 trong ch\u1ea9n \u0111o\u00e1n, n\u1ed9i soi ti\u00eau h\u00f3a \u0111\u00e3 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong \u0111i\u1ec1u tr\u1ecb nh\u1eefng b\u1ec7nh l\u00fd ti\u00eau h\u00f3a th\u01b0\u1eddng g\u1eb7p nh\u01b0 c\u1eaft polyp \u1ed1ng ti\u00eau h\u00f3a qua n\u1ed9i soi, c\u1ea7m m\u00e1u qua n\u1ed9i soi, g\u1eafp s\u1ecfi qua n\u1ed9i soi m\u1eadt t\u1ee5y ng\u01b0\u1ee3c d\u00f2ng, m\u1edf th\u00f4ng d\u1ea1 d\u00e0y nu\u00f4i \u0103n qua n\u1ed9i soi &#8230; v\u00e0 g\u1ea7n \u0111\u00e2y v\u1edbi k\u1ef9 thu\u1eadt c\u1eaft h\u1edbt ni\u00eam m\u1ea1c d\u1ea1 d\u00e0y trong \u0111i\u1ec1u tr\u1ecb ung th\u01b0 s\u1edbm c\u1ee7a d\u1ea1 d\u00e0y.<\/p>\n<ul>\n<li><strong>1932<\/strong> Wolf, Schindler, Lange \u0111\u00e3 tr\u00ecnh b\u00e0y v\u00e0 s\u1eed d\u1ee5ng l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u00e8n soi d\u1ea1 d\u00e0y n\u1eeda c\u1ee9ng n\u1eeda m\u1ec1m.<\/li>\n<li><strong>1958<\/strong> Hirschowitz s\u1eed d\u1ee5ng \u1ed1ng soi m\u1ec1m ho\u00e0n to\u00e0n, m\u1edf ra m\u1ed9t th\u1eddi \u0111\u1ea1i ph\u00e1t tri\u1ec3n m\u1edbi cho ng\u00e0nh n\u1ed9i soi.<\/li>\n<li><strong>1970<\/strong> n\u1ed9i soi can thi\u1ec7p c\u1eaft polyp, soi \u0111\u1ea1i tr\u00e0ng \u1ed1ng m\u1ec1m.<\/li>\n<li><strong>1973<\/strong> Kawai, Classen l\u1ea7n \u0111\u1ea7u ti\u00ean c\u1eaft c\u01a1 v\u00f2ng Oddi <strong>1979<\/strong> Soehendra \u0111\u1eb7t d\u1eabn l\u01b0u \u0111\u01b0\u1eddng m\u1eadt.<\/li>\n<li><strong>1980<\/strong> si\u00eau \u00e2m n\u1ed9i soi<\/li>\n<li><strong>1983<\/strong> n\u1ed9i soi video<\/li>\n<\/ul>\n<p><strong>\u0110\u1ea7u th\u1ebf k\u1ef7 XXI<\/strong> c\u00f3 m\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p n\u1ed9i soi \u0111\u1eb7c bi\u1ec7t \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng nh\u01b0 n\u1ed9i soi vi\u00ean nang, n\u1ed9i soi s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng d\u1ea3i h\u1eb9p (NBI : Narrow Band Imaging), n\u1ed9i soi c\u00f3 k\u1ebft h\u1ee3p v\u1edbi laser (CEM : Confocal endomicroscopy), n\u1ed9i soi ng\u00e3 m\u0169i. V\u1edbi nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p m\u1edbi n\u00e0y \u0111\u00e3 gi\u00fap chuy\u00ean ng\u00e0nh n\u1ed9i soi ph\u00e1t tri\u1ec3n v\u01b0\u1ee3t b\u1eadc trong l\u0129nh v\u1ef1c ch\u1ea9n \u0111o\u00e1n v\u00e0 \u0111i\u1ec1u tr\u1ecb.<\/p>\n<p>T\u1ea1i Vi\u1ec7t Nam, B\u1ec7nh vi\u1ec7n \u0110a khoa Qu\u1ed1c t\u1ebf Vinmec v\u1edbi\u00a0 h\u1ec7 th\u1ed1ng <a href=\"https:\/\/www.vinmec.com\/vi\/tieu-hoa-gan-mat\/thong-tin-suc-khoe\/ky-thuat-su-dung-spyglass-trong-dieu-tri-benh-ly-mat-tuy\/\">SpyGlass<\/a> \u0111\u00e3 m\u1edf ra tri\u1ec3n v\u00f2ng \u0111i\u1ec1u tr\u1ecb m\u1edbi cho c\u00e1c b\u1ec7nh nh\u00e2n b\u1ecb b\u1ec7nh l\u00fd m\u1eadt tu\u1ef5, gi\u1ea3m c\u00e1c bi\u1ec7n ph\u00e1p can thi\u1ec7p x\u00e2m l\u1ea5n, \u0111em l\u1ea1i ch\u1ea5t l\u01b0\u1ee3ng s\u1ed1ng t\u1ed1t h\u01a1n cho b\u1ec7nh nh\u00e2n.<\/p>\n<h2>2. C\u1ea5u t\u1ea1o m\u00e1y n\u1ed9i soi \u1ed1ng m\u1ec1m<\/h2>\n<h3>2.1. H\u1ec7 th\u1ed1ng m\u00e1y n\u1ed9i soi \u1ed1ng m\u1ec1m<\/h3>\n<p>M\u1ed9t h\u1ec7 th\u1ed1ng m\u00e1y n\u1ed9i soi \u1ed1ng m\u1ec1m c\u01a1 b\u1ea3n bao g\u1ed3m:<\/p>\n<ul>\n<li>M\u00e0n h\u00ecnh chuy\u00ean d\u1ee5ng 14- 17- 20 inch.<\/li>\n<li>B\u1ed9 ph\u1eadn vi x\u1eed l\u00fd<\/li>\n<li>Ngu\u1ed3n s\u00e1ng.<\/li>\n<li>M\u00e1y n\u1ed9i soi, hi\u1ec7n nay th\u00f4ng d\u1ee5ng l\u00e0 m\u00e1y n\u1ed9i soi \u1ed1ng m\u1ec1m c\u00f3 video.<\/li>\n<\/ul>\n<h4>2.1.1. H\u1ec7 th\u1ed1ng d\u1eabn s\u00e1ng<\/h4>\n<p>Trong m\u00e1y n\u1ed9i soi quy \u01b0\u1edbc, \u00e1nh s\u00e1ng truy\u1ec1n theo hai chi\u1ec1u:<\/p>\n<ul>\n<li>B\u00f3 d\u1eabn s\u00e1ng t\u1eeb ngu\u1ed3n s\u00e1ng l\u1ea1nh b\u00ean ngo\u00e0i \u0111\u1ebfn v\u1eadt k\u00ednh \u1edf \u0111\u1ea7u \u1ed1ng soi, n\u1eb1m su\u1ed1t chi\u1ec1u d\u00e0i c\u1ee7a m\u00e1y.<\/li>\n<li>B\u00f3 d\u1eabn s\u00e1ng v\u1ec1 t\u1eeb v\u1eadt k\u00ednh \u0111\u1ebfn th\u1ecb k\u00ednh, ch\u1ec9 c\u00f3 \u1edf ph\u1ea7n \u1ed1ng soi v\u00e0 th\u00e2n m\u00e1y. C\u00e1c s\u1ee3i th\u1ee7y tinh trong b\u00f3 d\u1eabn s\u00e1ng v\u1ec1 \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo m\u1ed9t th\u1ee9 t\u1ef1 nghi\u00eam ng\u1eb7t nh\u1eb1m t\u00e1i hi\u1ec7n h\u00ecnh \u1ea3nh m\u1ed9t c\u00e1ch trung th\u1ef1c. B\u00f3 d\u1eabn s\u00e1ng v\u1ec1 r\u1ea5t quan tr\u1ecdng trong m\u00e1y n\u1ed9i soi v\u00e0 s\u1ef1 g\u00e3y c\u00e1c s\u1ee3i\u00a0 quang h\u1ecdc s\u1ebd l\u00e0m xu\u1ea5t hi\u1ec7n hi\u1ec7n c\u00e1c ch\u1ea5m \u0111en trong th\u1ecb tr\u01b0\u1eddng, s\u1ebd t\u0103ng d\u1ea7n sau v\u00e0i n\u0103m. M\u00e1y n\u1ed9i soi truy\u1ec1n h\u00ecnh kh\u00f4ng c\u00f3 b\u00f3 d\u1eabn s\u00e1ng v\u1ec1 m\u00e0 thay b\u1eb1ng m\u1ed9t camera nh\u1ecf \u1edf \u0111\u1ea7u \u1ed1ng soi. V\u00ec v\u1eady ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh \u1ed5n \u0111\u1ecbnh v\u00e0 kh\u00f4ng b\u1ecb suy gi\u1ea3m.<\/li>\n<li><strong>\u0110\u1ed9 s\u00e1ng c\u1ee7a m\u00e1y n\u1ed9i soi t\u00f9y thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1: <\/strong>Ngu\u1ed3n s\u00e1ng lo\u1ea1i xenon c\u01b0\u1eddng \u0111\u1ed9 kho\u1ea3ng 300W s\u00e1ng h\u01a1n b\u00f3ng \u0111\u00e8n halogen c\u01b0\u1eddng \u0111\u1ed9 ch\u1ec9 kho\u1ea3ng 150W, tu\u1ed5i th\u1ecd b\u00f3ng \u0111\u00e8n, \u0111\u1ed9 ph\u00e2n gi\u1ea3i \u00e1nh s\u00e1ng, t\u00f9y thu\u1ed9c loai m\u00e1y, \u0111\u1ed9 ph\u00e2n gi\u1ea3i c\u00e0ng cao th\u00ec ch\u1ea5t l\u01b0\u1ee3ng \u00e1nh s\u00e1ng c\u00e0ng t\u1ed1t.<\/li>\n<\/ul>\n<h4>2.1.2. \u0110\u01b0\u1eddng d\u1eabn h\u01a1i v\u00e0 n\u01b0\u1edbc<\/h4>\n<ul>\n<li>Tr\u00ean tay c\u1ea7m c\u1ee7a m\u00e1y c\u00f3 hai n\u00fat \u0111i\u1ec1u khi\u1ec3n m\u00e0u xanh v\u00e0 m\u00e0u \u0111\u1ecf.<\/li>\n<li><strong>N\u00fat m\u00e0u xanh<\/strong> d\u00f9ng \u0111\u1ec3 b\u01a1m h\u01a1i khi b\u1ecbt l\u1ea1i v\u00e0 b\u01a1m n\u01b0\u1edbc \u0111\u1ec3 r\u1eeda m\u1eb7t k\u00ednh khi \u1ea5n n\u00fat v\u00e0o.<\/li>\n<li><strong>N\u00fat m\u00e0u \u0111\u1ecf<\/strong> \u0111\u1ec3 h\u00fat h\u01a1i v\u00e0 n\u01b0\u1edbc khi \u1ea5n n\u00fat v\u00e0o.<\/li>\n<\/ul>\n<p>H\u01a1i \u0111\u01b0\u1ee3c b\u01a1m ra t\u1eeb ngu\u1ed3n s\u00e1ng v\u1edbi nhi\u1ec1u m\u1ee9c \u0111\u1ed9 kh\u00e1c nhau v\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 quan s\u00e1t t\u1ed5n th\u01b0\u01a1ng. S\u1ed1 l\u01b0\u1ee3ng h\u01a1i n\u00ean v\u1eeba \u0111\u1ee7 \u0111\u1ec3 quan s\u00e1t, tr\u00e1nh b\u01a1m qu\u00e1 c\u0103ng g\u00e2y kh\u00f3 ch\u1ecbu cho b\u1ec7nh nh\u00e2n. D\u00f2ng n\u01b0\u1edbc b\u01a1m ra r\u1ea5t nh\u1ecf v\u00e0 ch\u1ec9 d\u00f9ng \u0111\u1ec3 r\u1eeda m\u1eb7t k\u00ednh. Khi mu\u1ed1n r\u1eeda t\u1ed5n th\u01b0\u01a1ng ph\u1ea3i d\u00f9ng b\u01a1m n\u01b0\u1edbc tr\u1ef1c ti\u1ebfp qua k\u00eanh sinh thi\u1ebft.<\/p>\n<h4>2.1.3. K\u00eanh sinh thi\u1ebft<\/h4>\n<ul>\n<li>K\u00eanh sinh thi\u1ebft c\u00f3 \u0111\u01b0\u1eddng k\u00ednh 2,8- 3,7mm. C\u1ea7n ch\u00fa \u00fd c\u00e1c d\u1ee5ng c\u1ee5 n\u1ed9i soi (kim ti\u00eam, k\u1ec1m sinh thi\u1ebft, l\u1ecdng c\u1eaft polyp, r\u1ecd g\u1eafp d\u1ecb v\u1eadt&#8230;) ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi k\u00eanh sinh thi\u1ebft.<\/li>\n<li>K\u00eanh sinh thi\u1ebft d\u00f9ng \u0111\u1ec3 \u0111\u01b0a k\u1ec1m sinh thi\u1ebft ho\u1eb7c c\u00e1c d\u1ee5ng c\u1ee5 kh\u00e1c \u0111\u1ebfn t\u1ed5n th\u01b0\u01a1ng.<\/li>\n<li>D\u00f9ng \u0111\u1ec3 b\u01a1m n\u01b0\u1edbc r\u1eeda t\u1ed5n th\u01b0\u01a1ng.<\/li>\n<\/ul>\n<h4>2.1.4. C\u1ea5u tr\u00fac c\u1ee7a \u1ed1ng soi<\/h4>\n<p>Th\u01b0\u1eddng g\u1ed3m c\u00e1c ph\u1ea7n sau:<\/p>\n<ul>\n<li>M\u1ed9t hay hai \u0111\u1ea7u t\u1eadn c\u00f9ng c\u1ee7a b\u00f3 d\u1eabn s\u00e1ng t\u1edbi.<\/li>\n<li>M\u1ed9t v\u1eadt k\u00ednh d\u1eabn s\u00e1ng v\u1ec1.<\/li>\n<li>M\u1ed9t hay hai mi\u1ec7ng m\u1edf c\u1ee7a van sinh thi\u1ebft. M\u1ed9t ch\u1ed7 g\u1edd \u0111\u1ec3 b\u01a1m h\u01a1i v\u00e0 n\u01b0\u1edbc.<\/li>\n<\/ul>\n<p>T\u00f9y theo h\u01b0\u1edbng d\u1eabn \u00e1nh s\u00e1ng \u0111\u00e8n, ng\u01b0\u1eddi ta chia l\u00e0m 03 lo\u1ea1i m\u00e1y soi:<\/p>\n<ul>\n<li><strong>M\u00e1y nh\u00ecn th\u1eb3ng:<\/strong> th\u01b0\u1eddng d\u00f9ng trong ch\u1ea9n \u0111o\u00e1n c\u00e1c\u00a0 b\u1ec7nh l\u00fd \u1ed1ng ti\u00eau h\u00f3a, l\u00e0 lo\u1ea1i m\u00e1y th\u00f4ng d\u1ee5ng nh\u1ea5t.<\/li>\n<li><strong>M\u00e1y nh\u00ecn b\u00ean:<\/strong> th\u01b0\u1eddng d\u00f9ng trong ch\u1ea9n \u0111o\u00e1n v\u00e0 \u0111i\u1ec1u tr\u1ecb c\u00e1c b\u1ec7nh l\u00fd c\u1ee7a \u0111\u01b0\u1eddng m\u1eadt, t\u1ee5y.<\/li>\n<li><strong>M\u00e1y nh\u00ecn ch\u1ebfch:<\/strong> c\u00f3 th\u1ec3 d\u00f9ng cho c\u1ea3 hai lo\u1ea1i ch\u1ec9 \u0111\u1ecbnh tr\u00ean.<\/li>\n<\/ul>\n<p>Ph\u1ea7n \u0111\u1ea7u \u1ed1ng soi c\u00f3 th\u1ec3 di \u0111\u1ed9ng linh ho\u1ea1t b\u1eb1ng c\u00e1ch \u0111i\u1ec1u khi\u1ec3n 2 v\u00f2ng xoay \u1edf tay c\u1ea7m c\u1ee7a m\u00e1y.<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-24808 aligncenter\" src=\"http:\/\/noithathoaphat.in\/ctv\/wp-content\/uploads\/2023\/04\/may-noi-soi-300x185.png\" alt=\"m\u00e1y n\u1ed9i soi\" width=\"300\" height=\"185\" srcset=\"http:\/\/noithathoaphat.in\/ctv\/wp-content\/uploads\/2023\/04\/may-noi-soi-300x185.png 300w, http:\/\/noithathoaphat.in\/ctv\/wp-content\/uploads\/2023\/04\/may-noi-soi.png 473w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<h3>2.2. \u0110\u00e1nh gi\u00e1 ch\u1ee9c n\u0103ng c\u1ee7a m\u1ed9t m\u00e1y n\u1ed9i soi<\/h3>\n<h4>2.2.1. K\u00edch th\u01b0\u1edbc<\/h4>\n<p>Chi\u1ec1u d\u00e0i v\u00e0 \u0111\u01b0\u1eddng k\u00ednh \u1ed1ng soi, chi\u1ec1u d\u00e0i c\u00e1c \u1ed1ng soi d\u1ea1 d\u00e0y th\u00f4ng th\u01b0\u1eddng t\u1eeb 925- 1025cm, c\u00e1c \u1ed1ng soi t\u00e1 tr\u00e0ng th\u01b0\u1eddng d\u00e0i h\u01a1n; \u1ed1ng soi \u0111\u1ea1i tr\u00e0ng c\u00f3 chi\u1ec1u d\u00e0i t\u1eeb 1300- 1600cm. \u0110\u01b0\u1eddng k\u00ednh \u1ed1ng soi \u1edf ng\u01b0\u1eddi l\u1edbn thay \u0111\u1ed5i t\u1eeb 7,9- 13,2mm, hi\u1ec7n nay \u1ed1ng soi d\u1ea1 d\u00e0y qua ng\u00e3 m\u0169i c\u00f3 \u0111\u01b0\u1eddng k\u00ednh nh\u1ecf h\u01a1n ch\u1ec9 c\u00f2n 6mm.<\/p>\n<h4>2.2.2. \u0110\u1ed9 di \u0111\u1ed9ng \u0111\u1ea7u \u1ed1ng soi<\/h4>\n<p>Di \u0111\u1ed9ng tr\u00ean d\u01b0\u1edbi, ph\u1ea3i tr\u00e1i.<br \/>\nM\u1ed7i m\u00e1y c\u00f3 \u0111\u1ed9 di \u0111\u1ed9ng kh\u00e1c nhau. \u0110\u1ed1i v\u1edbi m\u00e1y n\u1ed9i soi ti\u00eau h\u00f3a tr\u00ean th\u00ec chuy\u1ec3n \u0111\u1ed9ng l\u00ean tr\u00ean th\u01b0\u1eddng chi\u1ebfm \u01b0u th\u1ebf h\u01a1n<\/p>\n<h4>2.2.3. T\u1ea7m nh\u00ecn<\/h4>\n<p>Th\u00f4ng th\u01b0\u1eddng t\u1eeb 3- 100mm (5- 60mm \u0111\u1ed1i v\u1edbi m\u00e1y soi ngang). N\u1ebfu g\u1ea7n h\u01a1n s\u1ebd b\u1ecb l\u00f3e s\u00e1ng, n\u1ebfu xa h\u01a1n s\u1ebd t\u1ed1i kh\u00f4ng th\u1ec3 quan s\u00e1t \u0111\u01b0\u1ee3c.<\/p>\n<h4>2.2.4. G\u00f3c nh\u00ecn<\/h4>\n<p>G\u00f3c nh\u00ecn c\u00e0ng r\u1ed9ng h\u00ecnh \u1ea3nh c\u00e0ng l\u1edbn. Tuy nhi\u00ean, g\u00f3c nh\u00ecn c\u00e0ng r\u1ed9ng s\u1ebd l\u00e0m bi\u1ebfn d\u1ea1ng \u1edf ngo\u1ea1i vi. G\u00f3c nh\u00ecn th\u00f4ng th\u01b0\u1eddng l\u00e0 120<sup>0<\/sup><\/p>\n<h4>2.2.5. C\u00e1ch s\u1eafp x\u1ebfp c\u00e1c k\u00eanh<\/h4>\n<p>\u0110\u1eb7c bi\u1ec7t quan tr\u1ecdng l\u00e0 t\u01b0\u01a1ng quan gi\u1eefa v\u1eadt k\u00ednh v\u00e0 mi\u1ec7ng k\u00eanh sinh thi\u1ebft. N\u00f3 x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed \u0111i ra c\u1ee7a c\u00e1c d\u1ee5ng c\u1ee5 tr\u00ean m\u00e0n h\u00ecnh. \u0110\u1ed1i v\u1edbi m\u00e1y nh\u00ecn th\u1eb3ng th\u01b0\u1eddng \u1edf v\u1ecb tr\u00ed 7 gi\u1edd. \u0110\u1ed1i v\u1edbi m\u00e1y nh\u00ecn ngang th\u01b0\u1eddng \u1edf v\u1ecb tr\u00ed 2 gi\u1edd. C\u00e1c t\u1ed5n th\u01b0\u01a1ng quan s\u00e1t \u0111\u01b0\u1ee3c s\u1ebd d\u1ec5 d\u00e0ng ti\u1ebfp c\u1eadn h\u01a1n \u1edf c\u00e1c v\u1ecb tr\u00ed n\u00e0y.<\/p>\n<p>Ngu\u1ed3n:<\/p>\n<ol>\n<li>N\u1ed9i soi ti\u00eau ho\u00e1. B\u1ec7nh vi\u1ec7n B\u1ea1ch Mai.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>N\u1ed9i soi ti\u00eau ho\u00e1 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong y h\u1ecdc, \u0111\u1eb7c bi\u1ec7t n\u1ed9i soi ti\u00eau h\u00f3a l\u1ea1i c\u00e0ng \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng h\u01a1n, kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u01b0\u1ee3c trong ch\u1ea9n \u0111o\u00e1n v\u00e0 \u0111i\u1ec1u tr\u1ecb m\u1ed9t s\u1ed1 b\u1ec7nh l\u00fd ti\u00eau h\u00f3a. M\u00e1y n\u1ed9i soi ti\u00eau h\u00f3a \u0111\u00e3 t\u1eebng b\u01b0\u1edbc ph\u00e1t tri\u1ec3n t\u1eeb th\u00f4 [&hellip;]<\/p>\n","protected":false},"author":15,"featured_media":24812,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[5,33],"tags":[3],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Gi\u1edbi thi\u1ec7u m\u00e1y n\u1ed9i soi ti\u00eau ho\u00e1 - Vinmec<\/title>\n<meta name=\"description\" content=\"N\u1ed9i soi \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong y h\u1ecdc, kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u01b0\u1ee3c trong ch\u1ea9n \u0111o\u00e1n v\u00e0 \u0111i\u1ec1u tr\u1ecb m\u1ed9t s\u1ed1 b\u1ec7nh l\u00fd ti\u00eau h\u00f3a. M\u00e1y n\u1ed9i soi ti\u00eau ho\u00e1 \u0111ang ph\u00e1t tri\u1ec3n ng\u00e0y c\u00e0ng hi\u1ec7n \u0111\u1ea1i gi\u00fap ch\u1ea9n \u0111o\u00e1n v\u00e0 \u0111i\u1ec1u tr\u1ecb nhi\u1ec1u b\u1ec7nh l\u00fd.\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Gi\u1edbi thi\u1ec7u m\u00e1y n\u1ed9i soi ti\u00eau ho\u00e1 - Vinmec\" \/>\n<meta property=\"og:description\" content=\"N\u1ed9i soi \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong y h\u1ecdc, kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u01b0\u1ee3c trong ch\u1ea9n \u0111o\u00e1n v\u00e0 \u0111i\u1ec1u tr\u1ecb m\u1ed9t s\u1ed1 b\u1ec7nh l\u00fd ti\u00eau h\u00f3a. M\u00e1y n\u1ed9i soi ti\u00eau ho\u00e1 \u0111ang ph\u00e1t tri\u1ec3n ng\u00e0y c\u00e0ng hi\u1ec7n \u0111\u1ea1i gi\u00fap ch\u1ea9n \u0111o\u00e1n v\u00e0 \u0111i\u1ec1u tr\u1ecb nhi\u1ec1u b\u1ec7nh l\u00fd.\" \/>\n<meta property=\"og:url\" content=\"http:\/\/noithathoaphat.in\/ctv\/index.php\/2023\/04\/19\/gioi-thieu-may-noi-soi-tieu-hoa\/\" \/>\n<meta property=\"og:site_name\" content=\"Vinmec\" \/>\n<meta property=\"article:published_time\" content=\"2023-04-19T16:11:18+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-04-20T05:53:41+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/noithathoaphat.in\/ctv\/wp-content\/uploads\/2023\/04\/20200826_121509_355829_1.max-1800x1800-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"459\" \/>\n\t<meta property=\"og:image:height\" content=\"356\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Minh Tang Phuong\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Minh Tang Phuong\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"http:\/\/noithathoaphat.in\/ctv\/index.php\/2023\/04\/19\/gioi-thieu-may-noi-soi-tieu-hoa\/\",\"url\":\"http:\/\/noithathoaphat.in\/ctv\/index.php\/2023\/04\/19\/gioi-thieu-may-noi-soi-tieu-hoa\/\",\"name\":\"Gi\u1edbi thi\u1ec7u m\u00e1y n\u1ed9i soi ti\u00eau ho\u00e1 - Vinmec\",\"isPartOf\":{\"@id\":\"http:\/\/noithathoaphat.in\/ctv\/#website\"},\"datePublished\":\"2023-04-19T16:11:18+00:00\",\"dateModified\":\"2023-04-20T05:53:41+00:00\",\"author\":{\"@id\":\"http:\/\/noithathoaphat.in\/ctv\/#\/schema\/person\/1f3505046718c2227ed72bac35a0fbcc\"},\"description\":\"N\u1ed9i soi \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong y h\u1ecdc, kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u01b0\u1ee3c trong ch\u1ea9n \u0111o\u00e1n v\u00e0 \u0111i\u1ec1u tr\u1ecb m\u1ed9t s\u1ed1 b\u1ec7nh l\u00fd ti\u00eau h\u00f3a. 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