125 SYSTOLIC PRESSURE-VOLUME RELATIONSHIP DURING EXERCISE
نویسندگان
چکیده
منابع مشابه
The end-systolic pressure-volume relationship in conscious dogs.
The end-systolic pressure-volume relationship (ESPVR) has been shown to be an afterload-insensitive descriptor of ventricular inotropic state in the isolated heart. The purpose of this study was to examine the effects of changes in afterload, heart rate, intravascular volume, autonomic tone, and inotropic state on the ESPVR in conscious dogs. In 30 dogs, left ventricular and pleural pressures w...
متن کاملEnd-systolic pressure-volume relations.
tive prosthetic orifice size may have to be performed at least a few weeks after valve insertion. Second, in some patients, the problem is compounded by the small size of the annulus compared with the size of the patient. My article was not written just to highlight the difficulties of a small aortic annulus. Dr. Kinsley's ability to insert a prosthetic valve size commensurate with the patient'...
متن کاملRight ventricular pressure/volume relationship at rest and during exercise in patients with chronic lung disease.
In most circumstances in health, efficient alveolar ventilation and alveolar-to-arterial exchange of 02 and CO2 are among the strongest of links in the gas-transport chain during maximal exercise. Indeed, in most instances, the metabolic cost of ventilation represents the only significant contribution ofthe pulmonary system to the limitation of 02 transport to locomotor muscles and thus to the ...
متن کاملSystolic Blood Pressure Response During Exercise Stress Testing: The Henry Ford ExercIse Testing (FIT) Project
BACKGROUND The prognostic significance of modest elevations in exercise systolic blood pressure response has not been extensively examined. METHODS AND RESULTS We examined the association between systolic blood pressure response and all-cause death and incident myocardial infarction (MI) in 44 089 (mean age 53±13 years, 45% female, 26% black) patients who underwent exercise treadmill stress t...
متن کاملLABORATORY INVESTIGATION VENTRICULAR PERFORMANCE Elfect of heart rate on the canine end-systolic pressure-volume relationship
Although the rate dependence of isolated muscle contractility is well known, the ventricular end-systolic pressure-volume relationship (ESPVR) has been reported to be insensitive to heart rate. To resolve this contradiction, we used an isolated, ejecting canine heart preparation perfused at a constant coronary arterial pressure. Heart rate was changed from 60 to 200 beats/min in steps of 20 bea...
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ژورنال
عنوان ژورنال: Pediatric Research
سال: 1981
ISSN: 0031-3998,1530-0447
DOI: 10.1203/00006450-198104001-00134