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الکتروکاردیوگراف | دستگاه نوار قلب

الکتروکاردیوگرافی

تعریف

الکتروکاردیوگرافی یک روش غیرتهاجمی و رایج برای ثبت تغییرات الکتریکی در قلب است. ثبتی که یک الکتروکاردیوگرام نامیده می شود (ECG یا EKG، سلسله ای از امواج را نشان می دهد که مربوط به تکانه های الکتریکی می شود که در طول هر ضربان از قلب رخ می دهد. نتایج روی کاغذ چاپ می شوند و یا روی یک مونیتور نشان داده می شوند تا یک نمایش تصویری از عملکرد قلب را فراهم کند. امواج در یک ثبت نرمال P,Q,R,S و T نامیده می شوند و به ترتیب الفبا دنبال می شوند. تعداد امواج ممکن است بسیار باشد و امواج دیگر ممکن است موجود باشند.

 

هدف

الکتروکاردیوگرافی یک نقطه شروع برای تشخیص بسیاری از مشکلات قلبی شامل آنژین صدری، آنژین پایدار، بیماری قلب ایسکمیک، آریتمی ( ضربان قلب نامنظم)، تاکی کاردی ( ضربان قلب سریع)، برادی کاردیا ( ضربان قلب آهسته)، انفارکتوس میوکارد ( حمله قلبی)، و شرایط قلبی مادرزادی ویژه است. این به طور روتین در معاینات فیزیکی و برای نظارت بر شرایط بیمار در طول و بعد از جراحی، به علاوه در تنظیم مراقبت های ویژه استفاده می شود. این یک اندازه گیری پایه برای استفاده در تست های تحمل ورزش ( تست های استرس) است و همچنین استفاده می شود تا علائم از قبیل درد سینه، تنگی نفس و تپش را ارزیابی کند.

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