"Transducers in Invasive Pressure Monitoring" by James DiNardo, MD for OPENPediatrics

Please visit: www.openpediatrics.org

OPENPediatrics™ is an interactive digital learning platform for healthcare clinicians sponsored by Boston Children's Hospital and in collaboration with the World Federation of Pediatric Intensive and Critical Care Societies. It is designed to promote the exchange of knowledge between healthcare providers around the world caring for critically ill children in all resource settings. The content includes internationally recognized experts teaching the full range of topics on the care of critically ill children. All content is peer-reviewed and open access-and thus at no expense to the user.

For further information on how to enroll, please email: openpediatrics@childrens.harvard.edu

Please note: OPENPediatrics does not support nor control any related videos in the sidebar, these are placed by Youtube. We apologize for any inconvenience this may cause.

Transducers in Invasive Pressure Monitoring, by Dr. James DiNardo.

Hi, my name is Jim DiNardo. I'm a Professor of Anesthesia at Harvard Medical School, and one of the cardiac ICU attendings here at Children's Hospital Boston. Today I'm going to be talking about invasive monitoring, specifically arterial pressure monitoring and central venous pressure monitoring. We're going to spend a little bit of time talking about transducers and how they work.

Transducers.

Transducers are a system that converts a mechanical signal, which in this case-- in the case of pressure monitoring-- both for arterial lines and central venous pressure lines, is a pulsatile signal, and it's converted through the transducer, and then through this cable converted to a digital signal pressure waveform, which is what you see on the monitor. And we're not going to spend a lot of time talking about electronically how that works, but suffice it to say that in order for a transducer to work, it has to be connected by a continuous column of fluid to the fluid in the patient's body in the system that your monitoring, ideally with no bubbles in it.

Because as we'll talk about the presence of bubbles in the transducer system degrades the conversion of the pressure signal to the electronic signal that we see on the monitor by damping out the pulses in the system. So, we have this continuous volume of fluid and we have the transducer generally hooked to a flush system. In this case, this is normal saline with a little bit of Heparin added running in about three mLs an hour, which is pretty typical, And that may vary from institution to institution. And that's just the volume of fluid necessary to keep the system free of clot and to prevent any thrombus forming on the ends of the catheters, which will also degrade the quality of the system and obviously creates a potential risk to the patient.

Видео "Transducers in Invasive Pressure Monitoring" by James DiNardo, MD for OPENPediatrics канала OPENPediatrics