We are breaking down the basics of diastolic dysfunction into easy to understand blogs! Last week we discussed the topic of diastole and the 4 stages that occur during this phase within the cardiac cycle. If you missed it, you can read it here! This week, we are going to go a step further and discuss the physiology in regards to the 4 stages of diastole. We are going to cover:
In the past weeks we had guest writer, Michael Owen, share how to assess diastolic dysfunction. He broke down the algorithm that ASE uses to evaluate the presence of dysfunction. The full ASE article is long and intense. Michael did a great job at simplifying the evaluation process. While featuring this Mastering Diastology series we started to receive a lot of questions. We realized that it would be helpful to take a step back and review the basics. All this great information regarding diastolic dysfunction means nothing to us unless we have a basic understanding of the topic and how it relates to our daily use. We are going to go back to the beginning. Let’s talk diastole!
MODERATE TO SEVERE MITRAL REGURGITATION
There are elevated filling pressures if any of the following are true:
Pulmonary venous AR duration minus mitral A-wave duration > 30 msec
IVRT < 60 msec
Average E/e’ > 14 (only in patients with reduced EF)
IVRT/T E-e’ < 5.6 (only in patients with normal EF)
HYPERTROPHIC CARDIOMYOPATHY
There are elevated filling pressures if any of the following are true:
Average E/e’ > 14
Pulmonary venous AR duration minus mitral A-duration > 30 msec
TR Peak Velocity > 2.8 m/s
LA Volume Index > 34 mL/m²
If average E/e’ is unobtainable or not used routinely in your lab, use “septal E/e’ >15” or “lateral E/e’ >13” to determine elevated filling pressures.
For the past 2 weeks, we have discussed two algorithms used for determining the presence & grade of diastolic function. If you missed out or want to review them, you can find them here:
Last week we discussed the algorithm for determining the presence of diastolic function in patients with normal ejection fraction (EF). This week, we are going to discuss determining the presence of diastolic function in patients with depressed EF or pathologic left ventricular hypertrophy (LVH) with preserved EF.
What better way to celebrate our 10 year anniversary than a world tour! We are dedicating our 10th year to giving back to the diagnostic imaging community. During our 10th year we are visiting facilities around the nation and world to spread our passion for excellence in imaging. We will include educational speaking events, volunteering and networking activities to our World Tour. If you would like us to come speak at your facility or join you in a volunteer or networking event let us know! Apply now and submit a request form.
This week starts off our diastolic function blog series with our guest blog writer, Michael Owen! We introduced our followers to him last week- if you missed it, you can find it here! Our goal for this blog is to have a basic understanding of the normal ejection fraction (EF) algorithm for evaluating diastolic function!
This week we are kicking off the diastolic function guideline series, hosted by our guest blog writer Michael Owen! But first, we need to cover the basics on ‘how-to‘ acquire the measurements needed to evaluate for diastolic function.
Wow, we made it! CardioServ celebrates 10 years! Thank you, to all our readers, clients and of course my amazing team! Enjoy our short celebration video. On Saturday October 14, we gathered with family and friends to celebrate our success. Thank you to the amazing staff at The Hibiscus House. The courtyard reception was beautiful, what an amazing location and fantastic place to gather with friends. It was hard to condense an entire magical evening into 2-1/2 minutes. Enjoy the video…
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