منابع مشابه
Vectorcardiography in myocardial infarction.
Standard limb leads and unipolar electrocardiography can provide valuable information in the diagnosis of myocardial infarction but there are occasions when the cardiographic changes are inconclusive. It may be difficult to differentiate between pericarditis and myocardial infarction. The electrocardiographic changes in posterior or lateral infarction are not always characteristic. It is not al...
متن کاملHypoxemia
تنفس یکی از اساسی ترین نیازهای انسان است که در صورت عدم تأمین این نیاز، حیات انسان چند دقیقه ای بیشتر ادامه نخواهد یافت. اهمیت این فعالیت حیاتی از تأثیر آن بر تغذیه سلولها به عنوان کوچکترین واحد سازنده بدن انسان نشأت می گیرد، زیرا اکسیژن یکی از مواد ضروری برای سلولها می باشد و کسب این ماده حیاتی فقط از طریق تنفس مناسب و راحت امکان پذیر است .
متن کاملThe history of vectorcardiography.
Vectorcardiography (VCG) is a part of electrocardiography (ECG). The vectorcardiogram displays the various complexes of the electrocardiogram, i.e. QRS, P and T complexes, in the form of "loops" which are determined from vectors representing successive instantaneous mean electric forces from the heart throughout an entire cardiac cycle. Since the heart is a three-dimensional structure, the elec...
متن کاملThe clinical value of vectorcardiography.
SOME WORKERS, with great enthusiasm about the clinical value of vectorcardio-grams, may, after reading this article, believe it should be classified under some heading other than Clinical Progress, but the writer hopes that the discussion will at least point out clearly the relationship between ordinary electrocardiograms and vectorcardiograms and some of the problems relating to the registrati...
متن کامل[Vectorcardiography in Wolff-Parkinson-White syndrome].
Twenty-six patients with Wolff-Parkinson-White (WPW) syndrome were studied by echocardiography. They were classified into the following WPW types: anterior right ventricular pre-excitation (Type I) - six patients; posterior right ventricular pre-excitation (Type II) - six patients; posterior left ventricular pre-excitation (Type III) - fourteen patients. Twenty-three patients were in WPW at the...
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ژورنال
عنوان ژورنال: Japanese Circulation Journal
سال: 1975
ISSN: 0047-1828,1347-4839
DOI: 10.1253/jcj.39.665