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Pulmonary Ventilation (3)
Articles on Pulmonary Ventilation
Abstracts of the 54th Congress of the German Society for Pneumology and Ventilatory Support. March 20-23, 2013. Hannover, Germany.
Propranolol's potential to increase survival time in a disabled submarine.
These results show that 40 mg of propranolol taken twice daily reduces resting VCO2 in healthy men and suggests that this treatment strategy may increase survival time in a disabled submarine scenario....
Dynamic hyperinflation during exercise in patients with precapillary pulmonary hypertension.
We analysed flow volume loops during exercise in 61 patients with precapillary pulmonary hypertension (PH) (age 55 ± 14 years) in comparison with 21 patients with COPD (60 ± 12 years), 39 patients with pulmonary fibrosis (58 ± 11 years) and 38 healthy controls (HC) (39 ± 15 years). Inspiratory c...
Spinal delivery of AAV vector restores enzyme activity and increases ventilation in Pompe mice.
We hypothesized that restoring GAA enzyme activity in the region of the phrenic motor nucleus could lead to improved breathing in a murine Pompe model (the Gaa(-/-) mouse). Adeno-associated virus serotype 5 (AAV5), encoding either GAA or green fluorescent protein (GFP), was delivered at the C(3)-C(4...
Effect of body mass index on affect at intensities spanning the ventilatory threshold.
The aim of this study was to compare acute affective responses at exercise intensities based on the ventilatory threshold between normal weight, overweight, and obese women. 66 sedentary women (22 in each Body Mass Index group) performed a maximal graded treadmill test to measure the...
Flow resistance, work of breathing of humidifiers, and endotracheal tubes in the hyperbaric chamber
We tested the added WOB imposed by HMEs and various sizes of ETT under hyperbaric conditions. We mechanically ventilated 4 types of HMEs and 3 ETTs at 6 minute ventilation volumes (7-19.5 L/min) in a hyperbaric chamber at pressures of 1 to 6 atmospheres absolute (ATA). Peak pressure increased with i...
[Thoracic fluid content - a possible determinant of ventilatory efficiency in patients with heart failure].
We studied 120 patients with LVSD and CHF, referred to our laboratory for CPET: 76% male, age 52.1 ± 12.1 years, 37% of ischemic etiology, left ventricular ejection fraction 27.6 ± 7.9%, 83% in sinus rhythm, 96% receiving ACEIs and/or ARBs and 79% beta-blockers, and 20% treated with a cardiac resy...
Assessing running economy during field running with changes of direction: application to 20 m shuttle runs.
To examine physiological responses to submaximal field running with changes of direction (COD), and to compare two approaches to assess running economy (RE) with COD, ie, during square-wave (SW) and incremental (INC) exercises. Ten male team-sport athletes performed,...
Flurbiprofen axetil, nasal polyps, and status asthmaticus: an unusual case report.
We report a case of life-threatening status asthmaticus in a young male presented with nasal polyps but without any history of anaphylaxis or asthma. The patient had normal results from preoperative respiratory systemic examinations. The postoperative asthma, which started after an i...
Self-organized patterns of airway narrowing.
The behavior of respiratory diseases such as asthma and COPD may involve complicated interactions among multiple factors. Theoretical and experimental data suggest that interdependence among the airways of the bronchial tree leads to the emergence of self-organized patterns of airway...