Inadequate building ventilation is the most common cause; the appearance of SBS in the mid-1970s has often been attributed to decreased ventilation standards for commercial buildings to increase energy efficiency, following the Arab oil embargo of 1973.
Delivery of the fetus can improve maternal cardiopulmonary status by relieving diaphragmatic and aortocaval compression and decreasing ventilation and cardiac output demand [6].
We hypothesized that lone rescuer two-thumb CPR is associated with increased ventilation cycle time, decreased ventilation quality and fewer chest compressions compared to two-finger CPR in an infant manikin model.
Coal mine methane (CMM) drainage via adopting in-seam horizontal boreholes is an effective way to decrease ventilation cost and production delay, ensure mining safety, reduce greenhouse gas emissions and increase the supply of energy resource.
Low oxygen levels and, eventually, high carbon dioxide levels in the blood can occur from poor gas exchange due to decreased ventilation from airway obstruction, hyperinflation and a reduced desire to breathe.
Previous studies have reported that startling stimuli, such as visual and vibration stimuli, decrease ventilation and heart rate temporarily (bradycardia) and can lead to cardiac arrest in some animals including molluscs [2], crustaceans [3], fish [4], amphibians [5] and mammal [6].
Unloading transiently decreased ventilation but, while unloading persisted, ventilation partially recovered (after 50 70 s).
Thus, the decreased ventilation was associated with a decrease in metabolism.
This was caused by decreased ventilation, induced by the butophanol administration, which matched a persistent low blood flow.
This approach has been shown to decrease ventilation times and is considered the best practice in recent guidelines [ 1].
