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Why are you asked to sniff during an echo

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Alisbaba

Member
Joined
Nov 12, 2018
Messages
23
Location
Uk
Hi,

I had my annual echo and was asked to sniff while they scanned under my heart in my belly

I have never done this in all the echo s I had so why didn’t they do it this time?

Just curious

Al
 

MdaPA

Active member
Joined
Jul 8, 2020
Messages
31
I've always been asked to sniff 👍
i have no idea why though
Quoted from linked site below:
"By doing this “sniff test”, we can look at the inferior vena cava and see if it collapses or not. If it doesn’t collapse, or decrease in diameter of at least 50%, then we know the right atrial pressure is even higher. By asking the patient to sniff, it generates a sudden decrease in intrathoracic pressure, which would normally cause the IVC to collapse at least 50%."
IVC Assessment With Echo: What Does IVC Collapse Even Mean
 

catwoman

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Sep 23, 2003
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6,006
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near Fort Worth TX
Neither my husband nor I have ever been asked to sniff during an echo. I’ve had echoes going back to 1990 at a variety of cardiologists’ practices and at one or 2 hospitals.
My husband has his semi-annual cardio visit + annual echo in January. I’ll ask about the sniff test then.
I have had mitral valve replacement; my husband has had mitral valve repair (chordae replaced), has a Micra AV pacemaker and has a-fib.
 

mecretired

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Apr 28, 2010
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Southeast Missouri, USA
I don’t think I’ve ever been asked to sniff and I have had echoes since the mod 1980’s (before color and when they were put on vcr cassettes). However I have one scheduled in November and will ask about it.
 

Paleowoman

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Jun 14, 2010
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Surrey, UK
I've been asked to do the sniff test during an echo but only one done by a cardiologist who does 'expert' echos. He also had me do a Valsalva maneuver which is another test used for cardiac function. I've never had a regular echo technician do those tests.
 

Sheenas7

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Joined
Apr 22, 2014
Messages
114
Location
Va, Fairfax County
Neither my husband nor I have ever been asked to sniff during an echo. I’ve had echoes going back to 1990 at a variety of cardiologists’ practices and at one or 2 hospitals.
My husband has his semi-annual cardio visit + annual echo in January. I’ll ask about the sniff test then.
I have had mitral valve replacement; my husband has had mitral valve repair (chordae replaced), has a Micra AV pacemaker and has a-fib.
Hi Catwoman. I also have a Micra leadless Medtronic pacemaker. I have A fib 100% of the time. Had a mitral repair and a ASD surgery when I was 7 years old in 1957. Dr Walter Lillehei pioneer children’s surgeon. And mitral valve replacement in 2001 at Cleveland Clinic. Long journey. Good luck and thank God for all the advances
 

ottagal

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Aug 8, 2008
Messages
2,514
Location
Can.
I've always been asked to 'sniff' during all my echos as far back as I can recall. Thanks for the explanation.
 
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