Results 211 to 220 of about 446,190 (245)

Antibiotic resistance in respiratory pathogens

Current Opinion in Infectious Diseases, 1998
Antibiotic resistance in respiratory pathogens has dramatically increased during recent years. Resistance to penicillin and multiple antimicrobial agents in pneumococci and resistance to ampicillin in Moraxella catarrhalis and Haemophilus influenzae, as a result of betalactamase production, have become highly prevalent worldwide.
M A, Dominguez, R, Pallares
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Respiratory Resistance of Tracheostomy Tubes

Archives of Otolaryngology - Head and Neck Surgery, 1984
One of the main results of tracheostomy is to reduce the airflow resistance and power of breathing. The airflow dynamics of three types of commonly used tracheostomy tubes were studied. A generator was used to produce a sinusoidal airflow wave to simulate normal breathing.
M W, Yung, S L, Snowdon
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Effects of Obesity on Respiratory Resistance

Chest, 1993
To assess the effects of obesity on pulmonary function, 46 healthy subjects exhibiting various degrees of obesity underwent lung function tests. Subjects were divided into three groups according to body mass index (BMI): 13 had minimal obesity (BMI, 25 to 29 kg/m2, group 1); 24 had a BMI in the 30 to 40 range (group 2); and 9 displayed to morbid ...
F, Zerah, A, Harf, L, Perlemuter, H, Lorino, A M, Lorino, G, Atlan   +5 more
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Antibiotic Resistance in Nosocomial Respiratory Infections

Clinics in Laboratory Medicine, 2014
Nosocomial respiratory infections are the most common acquired infections in patients with severe underlying conditions and are responsible for high morbidity and mortality in this patient population. Multidrug-resistant (MDR) pathogens are associated with hospital-acquired pneumonia (HAP) and ventilator-associated pneumonia (VAP).
Gerald A, Denys, Ryan F, Relich
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Estimating central and peripheral respiratory resistance

Journal of Applied Physiology, 1978
An analytic approach for fractionating total respiratory resistance into central (Rc) and peripheral (Rp) components is presented. In the analysis, linear regression equations relating the logarithm of the measured total resistance to the logarithm of frequency are derived for data spanning the frequency range 1–16 Hz. The computed slope and intercept
R L, Pimmel, M J, Tsai, D C, Winter, P A, Bromberg   +3 more
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Fractionating respiratory resistance in young children

Journal of Applied Physiology, 1979
Total respiratory resistance (Rrs) and the fraction of this resistance located peripherally, (Fp) were measured in a group of children (3--5 yr old). The technique used forced random noise to characterize the frequency dependence of effective resistance and an algorithm to compute Rrs and Fp from these data.
S P, Williams, R L, Pimmel, J M, Fullton, M J, Tsai, A M, Collier   +4 more
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Partitioning of Respiratory System Resistance in Children with Respiratory Insufficiency

American Journal of Respiratory and Critical Care Medicine, 1999
Using end-inspiratory airway occlusion, respiratory system resistance (Rrs) can be partitioned into a flow-resistive component (Rint), and an additional component (DeltaR), reflecting viscoelasticity and time constant inequalities. We studied flow and volume dependence of Rrs and its subdivisions (Rint and DeltaR) in 13 children, seven mechanically ...
A G, Kaditis, S T, Venkataraman, W A, Zin, E K, Motoyama   +3 more
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Antimicrobial resistance in respiratory tract pathogens

Expert Review of Anti-infective Therapy, 2004
Antimicrobial resistance has been a problem ever since the introduction of antimicrobial agents 60 years ago. Today, this problem is increasing so rapidly that the end of the antimicrobial era is being predicted. The increasing problems caused by antimicrobial resistance can be illustrated by those seen in bacterial pathogens that cause community ...
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Validation of Respiratory Resistance Measurements

ASME 2011 Summer Bioengineering Conference, Parts A and B, 2011
The airflow perturbation device (APD) has been developed as a portable, easy to use, and rapid-response instrument for noninvasively measuring respiratory resistance in humans. However, the APD has limited data validating it against established techniques; moreover, a method does not exist to standardize resistance measurement outputs between APD units.
James Pan, Andrew Saltos, Dan Smith, Arthur Johnson, Jafar Vossoughi   +4 more
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An analysis of respiratory drive components during flow-resistive respiratory loading

Annals of Biomedical Engineering, 1983
Inspiratory flow-resistive loading normally causes an additional respiratory drive that limits the resistance-induced decrease in minute ventilation (load compensation). Occlusion pressures (P100) were measured during CO2 rebreathing with and without added inspiratory loads in normal persons and persons with obstructive sleep apnea (OSA). At each point
P H, Abbrecht, K R, Rajagopal, H J, Bryant   +2 more
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