scholarly journals Characterization of Blood Pressure and Heart Rate Oscillations of POTS Patients via Uniform Phase Empirical Mode Decomposition

2020 ◽  
Vol 67 (11) ◽  
pp. 3016-3025
Author(s):  
Justen Geddes ◽  
Jesper Mehlsen ◽  
Mette S. Olufsen
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Empirical Mode Decomposition ◽  
Mode Decomposition ◽  
Rate Oscillations

Application of empirical mode decomposition (EMD) for automated identification of congestive heart failure using heart rate signals

2016 ◽  
Vol 28 (10) ◽  
pp. 3073-3094 ◽  
Author(s):  
U. Rajendra Acharya ◽  
Hamido Fujita ◽  
Vidya K. Sudarshan ◽  
Shu Lih Oh ◽  
Adam Muhammad ◽  
...  
Keyword(s):  
Heart Failure ◽  
Heart Rate ◽  
Congestive Heart Failure ◽  
Empirical Mode Decomposition ◽  
Automated Identification ◽  
Mode Decomposition

Radiotelemetric characterization of overweight-associated rises in blood pressure and heart rate

1999 ◽  
Vol 277 (4) ◽  
pp. H1540-H1545 ◽  
Author(s):  
Heinz Rupp ◽  
Bernhard Maisch
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Locomotor Activity ◽  
Caloric Intake ◽  
Cardiac Myosin ◽  
Myosin V ◽  
Pressure Transducers ◽  
Rate Maximum ◽  
Fat Diets

We addressed the hypothesis that hypercaloric diets induce hyperkinetic hypertension irrespective of day-night cycle and locomotor activity that is associated with altered cardiac myosin isozymes. Normotensive rats with implanted radiotelemetry pressure transducers were fed increasing amounts of coconut fat (8, 16, and 24%, each for 2 wk) corresponding to 20–47% of total calories from fat. Thereafter, increasing amounts of sucrose (16, 32, and 50%) and fructose (50%) were added to the 24% fat diet corresponding to 13–40% of total calories from sugar. In contrast to the fat diets, the 32% and 50% sucrose diets as well as the 50% fructose diets increased ( P < 0.05) blood pressure (systolic maximum +13 mmHg, diastolic maximum +4 mmHg, mean maximum +7 mmHg) and heart rate (maximum +50 beats/min) irrespective of the day-night cycle and the unaltered locomotor activity. Furthermore, body weight increased ( P < 0.05) during the 32% and 50% sucrose feedings. The increased blood pressure and heart rate normalized after rats were fed a regular chow. We concluded that an excessive caloric intake results in hyperkinetic hypertension that increases the myosin V1proportion.

scholarly journals Characterization of Dexmedetomidine Dosing and Safety in Neonates and Infants

2015 ◽  
Vol 20 (2) ◽  
pp. 112-118 ◽  
Author(s):  
Lauren M. Estkowski ◽  
Jennifer L. Morris ◽  
Elizabeth A. Sinclair
Keyword(s):  
Blood Pressure ◽  
Intensive Care Unit ◽  
Heart Rate ◽  
Intensive Care ◽  
Systolic Blood Pressure ◽  
Vital Signs ◽  
Pediatric Intensive Care ◽  
Neonates And Infants ◽  
To Receive

OBJECTIVES: To describe and compare off-label use and cardiovascular (CV) adverse effects of dexmedetomidine in neonates and infants in the pediatric intensive care unit (PICU). METHODS: Patients younger than 12 months with corrected gestational ages of at least 37 weeks who were receiving continuous infusion of dexmedetomidine at a tertiary pediatric referral center between October 2007 and August 2012 were assessed retrospectively. Patients were excluded if dexmedetomidine was used for procedural sedation, postoperative CV surgery, or if postanesthesia infusion weaning orders existed at the time of PICU admission. RESULTS: The median minimum dexmedetomidine dose was similar between infants and neonates at 0.2 mcg/kg/hr (IQR, 0.17–0.3) versus 0.29 mcg/kg/hr (IQR, 0.2–0.31), p = 0.35. The median maximum dose was higher for infants than neonates (0.6 mcg/kg/hr [IQR, 0.4–0.8] vs. 0.4 mcg/kg/hr [IQR, 0.26–0.6], p &lt; 0.01). Additional sedative use was more common in infants than neonates (75/99 [76%] vs. 15/28 [54%], p = 0.02). At least 1 episode of hypotension was noted in 34/127 (27%) patients and was similar between groups. An episode of bradycardia was identified more frequently in infants than neonates (55/99 [56%] vs. 2/28 [7%], p &lt; 0.01). Significant reduction in heart rate and systolic blood pressure was noted when comparing baseline vital signs to lowest heart rate and systolic blood pressure during infusion (p &lt; 0.01). CONCLUSIONS: Dexmedetomidine dose ranges were similar to US Food and Drug Administration–labeled dosages for intensive care unit sedation in adults. More infants than neonates experienced a bradycardia episode, but infants were also more likely to receive higher dosages of dexmedetomidine and additional sedatives.

Sign in / Sign up

Export Citation Format

Share Document