the effect of chair position on respiratory parameters in patients undergoing mechanical ventilation     fallahinia ghh [1] ,baghcheghi n [2] ,oshvandi kh [3] *,taher a [4] , soltanian ar [5]     received: 7 feb, 2013 accepted: 15 may, 2013    abstract  background & aims : there are many barriers to the movement of patients requiring mechanical ventilation and these patients are at risk for com...

background: in radiation treatment of moving targets located in thorax region of patient body, the delivered dose does not match with the planned treatment, resulting in some over and under dosage in the tumor volume, as a function of motion magnitude and frequency. several efforts have been done to investigate the target motion effects on dose distribution in the target and surrounding normal ...

abstract: the new neonatal ventilation methods have been developed along with utilization of new technological tools.this device is synchronized with the patient’s respiratory efforts. the ideal synchronized breath needs to be synchronous with initiation, size, and termination of the breath without delay in detecting of initial resiratory effort by device .the synchrony of respiration contribut...

[This corrects the article on p. 6 in vol. 1, PMID: 25705400.].

formaldehyde is a common indoor pollutant with irritant properties. the present case control study was undertaken among 37 exposed staff with formaldehyde and 19 non exposed (referent) ones to study the acute and chronic effects of it in two educational hospitals. all subjects were tested for respiratory function by a portable alpha vitalograph-uk. in addition using a respiratory questionnaire,...

[This corrects the article on p. 2551 in vol. 11.].

BACKGROUND Positive relationships between hospital volume and outcomes have been demonstrated for several surgeries and medical conditions. However, little is known about the volume-outcome relationship in patients admitted to medical ICUs. OBJECTIVE To determine the relationship between hospital volume and risk-adjusted in-hospital mortality for patients admitted to ICUs with respiratory, ne...

objectives the aim of this study was to investigate the relation between respiratory muscle strength and the severity of chf, and the influence of respiratory muscle strength on abnormal ventilation during exercise in chf patients. conclusions respiratory muscle strength is related to the severity of chf, and associated with rapid and shallow ventilation or excessive ventilation during exercise...

Methods We included 20 mechanically ventilated patients. Respiratory system compliance was calculated by dividing the volume change induced by small changes in pressure-support level by the corresponding change in mean inspiratory airway pressure with subsequent adjustment for the pressure-support termination criterion (25% of peak inspiratory flow). To determine the respiratory time constant (...