Results 281 to 290 of about 470,992 (309)
Some of the next articles are maybe not open access.
Obstructive Sleep Apnea and Cardiac Index
Chest, 1986Seventeen men (age range, 21 to 58 years) with severe obstructive sleep apnea syndrome (OSAS) documented by nocturnal polysomnography underwent hemodynamic investigations during sleep. We studied the evolution of the cardiac index during apneic events in both NREM and REM sleep using the thermodilution technique.
Jorge Motta +3 more
openaire +3 more sources
Echocardiography as an Index of Cardiac Performance
Hospital Practice, 1978Ultrasound imaging of the heart provides a noninvasive technique for assessing cardiac performance and diagnosing a wide range of disorders. Recent improvements in two-dimensional, planar instrumentation promise to make echocardiography even more versatile, permitting more comprehensive views of left ventricular function, valve orifice areas, and the ...
openaire +3 more sources
Thermodilution and Fick cardiac index determinations following cardiac surgery
Critical Care Medicine, 1975With the thermodilution technique, repeated determination of cardiac index (CI) has become a rapid, easily accomplished, safe procedure. We paired 77 CI determinations measured by direct Fick and thermodilution techniques in 21 patients who underwent myocardial revascularization.
MICHAEL HODGES +3 more
openaire +3 more sources
Measuring cardiac index with a focused cardiac ultrasound examination in the ED
The American Journal of Emergency Medicine, 2012Noninvasive technology may assist the emergency department (ED) physician in determining the hemodynamic status in critically ill patients. The objective of our study was to show that ED physicians can accurately measure cardiac index (CI) by performing a bedside focused cardiac ultrasound examination.A convenience sample of adult subjects were ...
Dustin D. Smith +6 more
openaire +3 more sources
A Simple Radiocardiographic Index of Cardiac Output
Radiology, 1963The cardiac output may be determined from a radiocardiographic tracing. This method is somewhat tedious because it requires, in addition to the tracing, the determination of the total blood volume. The usual method for calculating the cardiac output from the radiocardiogram is a modification of that of MacIntyre et al.
openaire +3 more sources
Cardiac Function Tests as Indexes of Fitness
Research Quarterly. American Association for Health, Physical Education and Recreation, 1969Abstract Ventricular function measurements such as the Tension Period (TP) and the Q to First Heart Sound Interval (Q-1HSI) have received increasing attention as possible simple indexes of a person's cardiovascular fitness. In order to evaluate the usefulness of these tests for measuring fitness, they were compared with fitness scores obtained using a ...
openaire +3 more sources
Index of Cardiac Age Index and Cardiometabolic Biomarkers in Adults with Metabolic Syndrome
Metabolic Syndrome and Related Disorders, 2021Background: The presence of metabolic syndrome (MetS) seems to alter or accelerate the aging process of tissues or organs including the heart. We aim to investigate whether MetS are associated with an index of cardiac age calculated by parameters derived from 128-slice cardiac multidetector computed tomography (MDCT) and cardiometabolic biomarkers in ...
Sang Yeoup Lee, Eun Jung Choi
openaire +2 more sources
Equivalence of bioimpedance and thermodilution in measuring cardiac index after cardiac surgery
Journal of Cardiothoracic and Vascular Anesthesia, 2002To compare thoracic electrical bioimpedance (TEB) cardiography versus pulmonary artery thermodilution (TD) derived cardiac index in patients after cardiopulmonary bypass.Prospective, blinded electronic data collection.Intensive care unit of a military hospital.Post-cardiopulmonary bypass patients for primary comparison between technologies (n = 20) and
W.Scott Sageman +2 more
openaire +2 more sources
Cardiac response as an index of the effect of aversion therapy
Behaviour Research and Therapy, 1984Abstract Recent research shows that aversion conditioning produces conditioned aversions to target stimuli. Conditioned aversions are manifest in the following posttreatment changes in S s' responses to target stimuli: increased negative evaluations, decreased contact or consumption, and increased phasic heart-rate responses (HRRs).
Stephen T. Tiffany +3 more
openaire +3 more sources
Computer-Automated Impedance-Derived Cardiac Indexes
IEEE Transactions on Biomedical Engineering, 1986In this study, an automated signal processing technique, ensemble averaging, provided artifact-free impedance data which permitted analysis during quiet breathing and exercise in normal young male subjects. Moreover, impedance-derived stroke volumes and other cardiac indexes calculated by ensemble-averaging showed close correlation with those ...
Michael Muzi +2 more
openaire +3 more sources