There was a trend towards an increase in cardiac rate (BT, 80.96 ± 18.7 and AT, 85.45 ± 17.6; P = 0.08) with no significant changes in mean arterial blood pressure (P = 0.93).
A study of cardiac rate in 134 healthy newborn infants during a 24-hour period showed that mean lowest heart rate was 85 beats/min, and sinus bradycardia was diagnosed in 109 healthy infants at their lowest heart rate [ 25].
Nocturnal hypoglycemia can lead to serious clinical consequences, including sudden death during sleep, thought to be a result of cardiac rate and rhythm disturbances in response to prolonged nocturnal hypoglycemia.
Briefly, patients who deceased within 30 days (20 %; n = 37) were older, presented an initial higher cardiac rate and respiratory rate, had more comorbidity, had more frequently severe sepsis or septic shock, and presented higher lactate levels than survivals.
Both LVI amplitude and duration decreased as a function of the cardiac rate.
Indeed, when the basal LVI excursion was compared with the fluctuation recorded during isoproterenol administration within the same range of cardiac rate, a clear-cut increase in the LVI downstroke was demonstrated.
Physical examination showed a respiratory rate of 16 per minute, cardiac rate of 51 per minute, blood pressure of 87/55 mmHg and temperature of 36.5°C.
Women were much less affected, with a cardiac event rate 1.82 times that during control periods.
Open image in new window Fig. 2 Single coronal PET slice from the 3D phantom acquisition at a cardiac output rate of 3 L/min, showing an example of radiotracer distribution in the myocardial chambers at increasing post-injection time points.
The trigger was used to supply the pulses at a cardiac autosynchronous rate to decrease the risk of cardiac arrhythmias.
