It is necessary to obtain a fundamental understanding of the goaf gas flow patterns in longwall mine in order to develop optimum goaf gas drainage and spontaneous combustion (sponcom) management strategies. The best ventilation layout for a longwall underground mine should assist in goaf gas drainage and further reduce the risk of sponcom in the goaf. Further, in the longwall panel, regulators ...

Rapid suppression is a must in the mitigation of ventilation air methane (VAM) explosions. Flame proves to be much more challenging than prevention flame initiation due small physics timescale (~1 s). This study numerically investigates effect spherical obstructions on propagation dynamics tube closed at one end. Obstructions with an inflating geometry, installed different locations, were exami...

Mouth-to-mouth ventilation is often refused by laypersons because of hygienic reasons. Supraglottic airway devices (SADs) might reduce the adverse effects of mouth-to-mouth ventilation. We tried to verify the possibility for untrained laypersons to use SADs properly after having read written instructions only. The participants were told to ventilate a manikin using a laryngeal tube (LT). The ti...

A modified naso-endotracheal tube is described which facilitates prolonged intermittent positive pressure ventilation of the lungs in infants and children. A crosspiece allows connection widi the inspiratory and expiratory tubes of a drcle-type mechanical ventilator. The technique of intubation and of securing ths nasal tube to the patient is described in detaiL The tube has been used in 126 pa...

The most dreaded complication of tube feedings is tracheobronchial aspiration of gastric contents. Strong evidence indicates that most critically ill tube-fed patients receiving mechanical ventilation aspirate gastric contents at least once during their early days of tube feeding. Those who aspirate frequently are about 4 times more likely to have pneumonia develop than are those who aspirate i...

BACKGROUND Supraglottic devices are helpful for inexperienced providers who perform ventilation in emergency situations. Most supraglottic devices do not allow secondary tracheal intubation through the device. The novel intubating laryngeal tube (iLTS-D) and the intubating laryngeal mask (Fastrach) are devices that offer supraglottic ventilation and secondary tracheal intubation. METHODS We e...

The Montgomery tracheal tube (T-tube) is a device used as a combined tracheal stent and airway after laryngotracheoplasty for patients with tracheal stenosis. This device can present various challenges to anesthesiologists during its placement, including the potential for acute loss of the airway, inadequate administration of inhalation agents, and inadequacy of controlled mechanical ventilatio...

ARDS remains a lethal complication after major lung resections. The reported mortality ranges from 50% to 100%, with increased incidence and mortality rates in pneumonectomy patients. The pathogenesis of early ARDS is still not fully understood, and the majority of patients will require mechanical ventilation. A review of the literature reveals that the role of noninvasive ventilation (NIV) in...