Importance of Valid Reference Ranges for Cardiac Output-Derived Haemodynamic Variables
نویسندگان
چکیده
منابع مشابه
Age-specific non-invasive transcutaneous Doppler ultrasound derived haemodynamic reference ranges in elderly Chinese adults
BACKGROUND Whilst there is a presumption in medicine that ageing adversely affects cardiovascular function, it is unknown if resting haemodynamics are compromised in the elderly, and if so, to what degree. This study was intended to answer several questions; whether age-related changes in haemodynamics occur; whether there was a difference between the haemodynamics of ageing subjects with and w...
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INTRODUCTION Levosimendan is a new inotropic vasodilator for the treatment of decompensated heart failure. Compared to other inotropic agents, it has been shown to improve myocardial contractility without increasing oxygen requirements. However, experience with levosimendan in patients with low cardiac output after cardiopulmonary bypass is limited. In this case series we present the short-term...
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BACKGROUND Reference ranges for electrocardiogram (ECG) intervals, heart rate, and QRS axis in general use by medical personnel and ECG readers are unrepresentative of true age- and sex-related values in large populations and are not based on modern electrocardiographic and ECG reading technology. METHODS AND RESULTS The results of ECG interpretation by cardiologists using digital technology ...
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In order to have reliable reference ranges and to minimize the effects of variables such as the procedure of specimen collection, geographical location, dietary habits, life style and possible errors during the performance of tests, it is recommended that each medical laboratory establish it's own reference values. Idealy, the reference ranges Should be determined by analysis of specimens from...
متن کاملTerminology for derived haemodynamic calculations.
Sir,—I read with much interest the paper by Guggiari and colleagues (1985) "Use of nitroglycerine to produce controlled decrease in mean arterial pressure to less than 50 mm Hg". While commending them for their work, I would like to point out a misinterpretation of the terminology used for haemo-dynamic measurements in their paper. Stroke volume (SV), as calculated by the authors, is in fact st...
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ژورنال
عنوان ژورنال: Heart, Lung and Circulation
سال: 2017
ISSN: 1443-9506
DOI: 10.1016/j.hlc.2017.06.214