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    01.27.2021Stephen Punzak MD

    An Ambulatory Surgery Center PreOp Nurse’s Guide To Cardiac Testing – Part 2 The Echocardiogram

    This is blog 2 of 3 that explains the ins and outs of pre-admissions cardiac testing from my perspective. As an anesthesiologist, with over 30 years of experience, I’ve done everything from open heart and liver transplant to fast-paced ASCs and pain management. My goal is to provide a common-sense explanation that helps ASC preop nurses to better understand cardiac testing in the context of a preop evaluation for ambulatory surgery. 

    So here’s what I can tell you: If stranded on a deserted island (or is it a desert island!?) doing anesthesia on old folks and I could have only one cardiac test, the cardiac echo would be it. Hands down. Stop the show.

    Why’s that? Because an echo gives you the best information about the pump function of the heart. As an anesthesiologist, the drugs I give each patient have the potential to change blood pressure, heart rate, and heart contractility. Knowing how well a patient’s heart contracts (systolic function) and fills (diastolic function) and the status of the heart valves preop will guide how much of which drugs I give and what heart rate and blood pressure I am going to shoot for.

    An echocardiogram or ECHO for short is just an ultrasound of the heart, but it gives you a wealth of information about “pump function”.

      • What it is – it’s an ultrasound movie of the heart’s valves and chambers. You can see individual valve leaflets and you can turn on color doppler to assess blood flow
      • What it can tell you for sure – pump function, valve function, diastolic dysfunction, presence of pulmonary hypertension, whether the patient has had a large mi in the past
      • What it can maybe tell you – presence of ischemia
      • What it can’t tell you – The quality and quantity of blood flow to the heart
      • What to look for – normal ejection fraction and normal valves

    If the patient has had a prior MI that is large enough to cause a wall motion defect, that part of the heart will be noted as being “akinetic”, i.e., not moving. If an area of the heart is ischemic or near an old MI, it will be noted as being “hypokinetic”, i.e., showing less movement than normal. Valvular defects, either regurg or stenosis, are assessed by color doppler flow (like the image above). An ECHO is so precise that all kinds of things can be measured precisely down to the level of a millimeter including aortic valve area, left ventricle size and wall thickness, left atrial size, etc.

    That’s it! If the ejection fraction is above 50% and there is only “minimal” regurgitation or stenois of any of the valves you’re “good to go”!

    Be sure to leave a comment below if you have any questions, and sign up for our newsletter to get more information about preadmissions, more about cardiac testing and insider tips for running the best ambulatory surgery center.  

     

    About the Author: Stephen Punzak, MD is a practicing Anesthesiologist as well as the CEO of One Medical Passport. He founded One Medical Passport because he has always had a vision of how healthcare could run more efficiently using technology.  He frequently writes on medical topics, workflow efficient measures and ASC industry trends. 

    Topics: ambulatory surgery center, nurse guide, cardiac

    Stephen Punzak MD

    Written by Stephen Punzak MD

    Dr. Stephen Punzak, M.D., Founded One Medical Passport in 2000 and serves as its Chief Executive Officer. For the past 17 years Dr. Punzak has worked as an anesthesiologist for large tertiary hospitals and ambulatory surgery centers.

    Related Blogs

    An Ambulatory Surgery Center PreOp Nurse’s Guide to Cardiac Testing - Part 1 EKG

    An Ambulatory Surgery Center PreOp Nurse’s Guide To Cardiac Testing – Part 3 Nuclear Medicine Stress Test

    How Evidence-Based Care is Necessary in Ambulatory Surgery

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