Results 161 to 170 of about 1,256,997 (211)

Increasing Cardiac Rate by Tracking the Respiratory Rate

Pacing and Clinical Electrophysiology, 1984
Un stimulateur asservi qui utilise la fréquence venlilatoire comme capteur a été implunté chez 22 patients, dont 19 pour la stimulation ventriculaire et 3 pour la stimulation auriculaire. Le niveau d'exercice atteint en utilisant ce système a été toiijours supérieur à celui de la stimulation ventriculaire à fréquence fixe.
P, Rossi, F, Aina, G, Rognoni, E, Occhetta, G, Plicchi, M D, Prando   +5 more
openaire   +2 more sources

Respiratory Rate as a Determinant of Optimal Pacing Rate

Pacing and Clinical Electrophysiology, 1983
Des essais ont été faits dans ľutilisation des paramètres bialogiques pour déterminer la fréquence optimale de stimulation cardiaque. Dans cette étude, le rapport entre fréquence respiratoire et fréquence cordiaque a étéétabli chez 67 patients au cours de ľexercice.
P, Rossi, G, Plicchi, G, Canducci, G, Rognoni, F, Aina   +4 more
openaire   +2 more sources

RESPIRATORY RATES IN PEDIATRIC EMERGENCY PATIENTS

Southern Medical Journal, 1990
Respiratory rates are routinely measured in pediatric emergency patients. The normal range has not been established, and commonly reported ranges seem lower than those encountered in clinical practice. This prospective study selected subjects from pediatric patients presenting for care to a suburban emergency department.
E A, Hooker, D F, Danzl, M, Brueggmeyer, E, Harper   +3 more
openaire   +2 more sources

Respiratory rate as an indicator of acute respiratory dysfunction.

JAMA, 1980
To assess respiratory rate as an indicator of acute respiratory dysfunction, we studied 58 consecutive patients four times daily during the postoperative period. Of 825 measurements of respiratory rate, 726 (89%) were normal (24/min or less). Elevations in respiratory rate without respiratory dysfunction were found in only 4% of all measurements ...
T R, Gravelyn, J G, Weg
openaire   +3 more sources

Efficient Respiratory Rate Extraction on a Smartwatch

2020 42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC), 2020
Using the Photoplethysmogram (PPG) sensor of a smartwatch to extract Respiratory Rate (RR) is very attractive. However, existing algorithms suffer from lack of accuracy and susceptibility to noise and movement artifacts. To tackle this issue, we propose performing Frequency Domain Peak (FDP) analysis using the Frequency Modulation (FM) feature ...
David Pollreisz, Nima Taherinejad
openaire   +2 more sources

Heart rate variability in subjects with different respiratory rates

Human Physiology, 2006
The variability of the cardiac rhythm was studied in males with different initial respiratory rates. At rest and during voluntarily controlled breathing, subjects with medium respiratory rates were found to have a less variable heart rate than their counterparts with low or high respiratory rates.
S A, Kovalenko, L I, Kudiĭ
openaire   +2 more sources

Correcting respiratory rate for the presence of fever

Journal of Clinical Epidemiology, 1994
This study defines what degree of respiratory rate (RR) elevation can be attributed to fever using a double blind randomized pre- and post-acetaminophen comparison of vital signs of febrile children presenting to an outpatient clinic. Inclusion criteria were aged between 6 weeks and 24 months, fever between 38.5 and 40.1 degrees C, no serious illness ...
A M, Gadomski, T, Permutt, B, Stanton
openaire   +2 more sources

Respiratory recovery rates after poliomyelitis

The American Journal of Medicine, 1954
Abstract Over 1,000 young adults and children have recently survived the acute stage of poliomyelitis in the United States only to be left with permanent or protracted respiratory muscle paralysis with more or less complete quadriplegia. Through realistic and timely planning much can actually be offered these severely disabled patients.
J F, MARCHAND, A T, MARCUM
openaire   +2 more sources

Measuring respiratory rate in children

Acta Paediatrica, 2023
David Wertheim, Paul Seddon
openaire   +2 more sources

Respiratory rates in emergency department patients

The Journal of Emergency Medicine, 1989
The respiratory rate is a sensitive and nonspecific indicator of respiratory dysfunction. Establishing a "normal" respiratory rate has mainly been arbitrary. This study evaluated "normal" respiratory rates in 110 emergency department patients. The mean respiratory rate was 20.1 (+/- 4.0).
E A, Hooker, D J, O'Brien, D F, Danzl, J A, Barefoot, J E, Brown   +4 more
openaire   +2 more sources