1/15/2024 0 Comments Mainstream capnographyInfrared technology is by far the most common and cost-effective method of carbon dioxide measurement and monitoring. 1, 2This “Clinical Concepts and Commentary” will summarize physiology and clinical interpretation of capnography and update the current status of capnography outside of the operating rooms, including public and media awareness, and suggest probable future directions. Nonetheless, in the last 2 yr there has been a surge in understanding and recognizing the value of capnography outside of the operating rooms. One of the obvious reasons seems to be a lack of a single society overseeing the safety of outside-the-operating-room procedures the way ASA and AAGBI do in the operating room. However, in many institutions, capnography is not used to monitor ventilation during sedation for procedures performed particularly by nonanesthesiologists outside of the operating rooms. As anesthesiologists, we use capnography to monitor sedation in the operating room because we appreciate that the line between consciousness and unconsciousness is very thin, and the patient can drift from one state to another. It is even more surprising that many ICUs do not have capnography either to confirm endotracheal intubation or to continually monitor ventilation. It is not uncommon in our practice to observe an intubated and ventilated patient, originally monitored with capnography in the operating room, but then transported to the intensive care unit (ICU) without capnography. Although capnography has become an integral part of anesthesia care in operating rooms for more than 25 yr, its value has been limited to these situations and is not well appreciated beyond these confinements. Capnography is mandatory for laparoscopic surgeries for reimbursement). Currently, anesthesiologists in many developing countries follow these recommendations (India, Government of Andhra Pradesh Order, AST/775/F25/dated September 2011. Thanks to the foresight of the American Society of Anesthesiologists (ASA), Anesthesia Patient Safety Foundation (APSF), Association of Anaesthetists of Great Britain and Ireland (AAGBI), and the Association of Anesthesiologists in Holland, capnography was embraced and incorporated into the standards of monitoring during anesthesia to enhance patient safety. Such a decrease has not been seen in other medical or surgical specialties over this time frame. In the United States, since 1985, there has been a dramatic decrease in the malpractice insurance premiums of anesthesiologists. Our Cleo capnography monitor is easy to use and designed to provide accurate readings through our advanced capnograph.HISTORICALLY, anesthesiologists seem to be the forerunners in implementing tools and standards for safety in the medical fraternity. For example, a mainstream capnograph may provide a shorter response time because the EtCO2 doesn’t have to travel as far to reach the sensor, but a sidestream capnography monitor may be more comfortable for the patient because the thin tubing that is connected is lighter and less bulky than a mainstream version.įor clinics and other healthcare facilities that are in the market for reliable capnography machines that incorporate some of the latest sidestream technology, contact Infinium Medical today. The main difference between these two methods is that a diverting capnograph is designed to carry, or divert, the exhaled air through a tube to the sensor, while a non-diverting capnograph will not move the sample, but instead, measures it directly at the source.īoth sidestream and mainstream capnography monitors offer a variety of benefits for healthcare facilities nationwide. There are two main ways for a capnography monitor to measure EtCO2 – either through sidestream (diverting) or mainstream (non-diverting) technology. Because the CO2 is carried through the veins to the heart, which then pumps it into the lungs, this measurement can indicate a patient’s cardiac output and pulmonary blood flow. At the end of an exhale, an amount of carbon dioxide called the end-tidal CO2, or EtCO2, is released. Mainstream TechnologyĪ capnography monitor is a machine that measures the exchange of carbon dioxide through a patient’s respirations.
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