Asthma is a chronic respiratory disease and has become the main reason patients are always rushed to hospital emergency department. Capnography new method for examining asthma by measuring CO2 levels released lungs. The aim of this research create an EtCO2 capnography device that able measure in with or difficulty breathing assist doctors determining urgency using ventilator patient. used uses ...

The ability to measure carbon dioxide (CO(2)) in the breath of a patient or capnometry, is one of the fundamental technological advances of modern medicine. I will chronicle the evolution and commercialization of mainstream capnometry based upon infrared measurement of CO(2) in the breath using information from the historical record and personal interviews with many of the developers.

Dear Editor, We have recently published a work on the intraoperative identification of fourth cervical (C4) root and phrenic nerve during “difficult” surgery, by changing the ventilator waveforms triggered by electrical stimulation of these anatomic structures.1,2 Reviewing the literature on the domain, we came across the correspondence by Bhakta (October 2008) regarding the article “Capnograph...