Relationship between Heart Rate, Left Ventricular Output, and Stroke Volume in Preterm Infants during Fluctuations in Heart Rate
نویسندگان
چکیده
منابع مشابه
Ivabradine: heart rate and left ventricular function.
intravenous administration of ivabradine caused no serious adverse events, with only four mild adverse events possibly related to ivabradine, all of which resolved spontaneously on the same day. Thus, Manz et al. [1] demonstrated that ivabradine is not just another reducer of heart rate. It is the only compound that can reduce heart rate without affecting any other hemodynamic parameter and wit...
متن کاملThe relationship between ventricular ectopic beat frequency and heart rate.
We examined the relationship between the frequency of premature ventricle complexes (PVCs) and underlying heart rate in 24 patients with frequent PVCs using 24-hour ambulatory ECG recordings. Plots of PVC frequency vs heart rate were made at 1-beat/min intervals for all heart rates that were recorded for at least 5 minutes of the 24 hours. Heart rates during 24 hours ranged from 56 +/- 10.0 to ...
متن کاملRelationship between heart rate variability and hypercholesterolaemia.
A statistically significant correlation between chronic (tonic) distress (expressed by long-term depression of heart rate variability-HRV) and the increase of the serum lipid level was found in the experimental group (39 clinically healthy subjects with hypercholesterolaemia; 16 women and 23 men; mean age 42.4 +/- 2.45 years). A statistically significant relationship was found also between the ...
متن کاملCorrelated and uncorrelated regions in heart-rate fluctuations during sleep.
Healthy sleep consists of several stages: deep sleep, light sleep, and rapid eye movement (REM) sleep. Here we show that these sleep stages can be characterized and distinguished by correlations of heart rates separated by n beats. Using the detrended fluctuation analysis (DFA) up to fourth order we find that long-range correlations reminiscent to the wake phase are present only in the REM phas...
متن کاملAssociation between Attention and Heart Rate Fluctuations in Pathological Worriers
Recent data suggests that several psychopathological conditions are associated with alterations in the variability of behavioral and physiological responses. Pathological worry, defined as the cognitive representation of a potential threat, has been associated with reduced variability of heart beat oscillations (i.e., decreased heart rate variability; HRV) and lapses of attention indexed by rea...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Pediatric Research
سال: 1992
ISSN: 0031-3998,1530-0447
DOI: 10.1203/00006450-199202000-00005