[The definition of heart failure with the product of minimal transit time and heart frequency (author's transl)].
The product of minimal transit time (MTT) and heart frequency (HF) defines the number of heart beats which are necessary to transport the blood in a determined region of the circulatory system. According to own studies in physiological (stress) and pharmacological conditions this product is constant, independent from body size, length, age etc. In proportion to the degree of heart failure the MTT X HF increases. Measuring appropriate regions of the circulatory system, right and left heart failure can easily be determined. The method has the advantage of a noninvasive procedure and gives exact quantitive accessment of the pump performance of the heart. In view of the increasing use of radio-nuclides this procedure can be recommended because of its good reliability causing little or no discomfort to the patient, and making it applicable, even under extreme conditions, for instance in a CCU.
D004395:Dye Dilution Technique; D004423:Ear / Q000098:blood supply; D006321:Heart / Q000502:physiology / Q000503:physiopathology*; D006333:Heart Failure / Q000175:diagnosis / Q000503:physiopathology*; D006339:Heart Rate; D006801:Humans; D008751:Methylene Blue; D011652:Pulmonary Circulation; D012039:Regional Blood Flow
D008751:Methylene Blue
Die Definition der Herzinsuffizienz mit dem Produkt aus minimaler Transitzeit und Herzfrequenz