Principles of Mech Vent 12: Inspiratory Time in Pressure Control: How to use the Flow Waveform!

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Күн бұрын

This video looks into how we can adjust our inspiratory time in pressure control based on the flow waveform. Using the pattern of flow decay (specifically the flow at end inspiration) to guide our decision on Ti setting. In some situations, we can actually gain some tidal volume without having to increase the PC level simply by adjusting the inspired time. In other settings we may wish to "crop" of inspiratory time if the flow has decayed to zero before the end of the inspiratory time.
Please ask questions! I can make follow up videos if needed to delve deeper into this concept!
Thanks
OP

Пікірлер: 38

@wa590 3 жыл бұрын

You explained to me in a few minutes what my professors couldn't do in 2 weeks .. they somehow just expected to understand all of this w/o teaching it to us. Thank you! Liked and subscribed!!

@stray_dog3960 7 жыл бұрын

I don't know if you are still keeping up with these videos but you are doing wonders for students in the RT world, keep the good work up you are making us smarter.

@rhoffmanrn 2 жыл бұрын

This was freaking awesome. Seriously as soon as it finally clicked I stood up and yelled I’m the smartest person alive!!! Thank you

@RespiratoryReview 2 жыл бұрын

Really glad it helped!

@mindfulnessmusicsound 9 жыл бұрын

Your vídeos are awsome man. Please, don't stop on doing it... it's benn heloing me a lot

@youthonly3988 3 жыл бұрын

A fantastic explanation!! Love the Mech Vent series. Have not watched the others yet but surely will. Just preparing for my first on-call and this explains stuff so clearly. Thank you so much.

@RespiratoryReview 3 жыл бұрын

I remember my first on call! You’ll be fine. Glad you like the videos.

@SixStrings187 3 жыл бұрын

perfectly explained. Thank you very much !

@hebamoneim8896 6 жыл бұрын

Amazing ! Thanks a lot

@RespiratoryReview 8 жыл бұрын

Michelle: In pressure control you don't have the option of increasing/decreasing the flow, like you do in volume control. It is not a variable we decide on in pressure control, the flow rate will be the result of the pressures we set, and the patients lung mechanics etc.

@ayrakwa1 Жыл бұрын

Thank you,this was very helpful.

@mohammedparveez5603 4 жыл бұрын

Well explained

@user-jw2ej1uf1j 4 жыл бұрын

Thanks alot it was so useful

@Suzi_P 6 жыл бұрын

Thanks so much

@user-ik8tn2ic1i 2 жыл бұрын

Amazing 🎖

@hafsaabro4003 Жыл бұрын

you are my hero

@rtstudent2752 9 жыл бұрын

Great videos! I think I'm over thinking it, (I do that a lot), but if flow is decreasing how do we maintain the pressure throughout Ti. ?

@rotorfib8719 5 жыл бұрын

how do you 'picture' things if your vent doesn't have the waveform graphs, like the lvt series

@math11as 5 жыл бұрын

hi there does Ti means we got to hold that 20mmhg for 1sec? or does it mean at the end of Ti we have a pressure of 20mmhg? + i do not understand how there can be added extra volume to the lung (left waveform) without raising the pressure? more volume= more pressure right?

@abdulmajeedbaogbah4482 5 жыл бұрын

Thank you for this video. Instead of increasing the (i time), can we increase the inspiratory rise? If not, what’s the relation between inspiratory rise and the amount of volume?

@cuff2860 4 жыл бұрын

I'm still a student so I may not be accurate but I'm fairly certain that increasing inspiratory rise would be the same as increasing the flow. Instead of a smaller, more gradual rise, the flow would come faster. That faster speed would equal increased oxygenation because it would be in the alveoli longer, which means for a greater period of diffusion.

@stevenr672 5 жыл бұрын

If the pt is breathing over the set vent rate on PC, are they being supported more in PC, than switching them over to PS...

@jeant9946 Жыл бұрын

Hi, do you mind telling us what kind of equipment and app did you use for making the video? I would like to do similar thing but in my own language. thx u

@raulz77 4 жыл бұрын

I could not find Video number 11. Can you tell where is it ?

@algorean 5 жыл бұрын

I don't know whether you're still active on the channel but I wanted to ask if the last graph can be a case of inspiratory pause, and how can this help the patient.

@MissRateil 4 жыл бұрын

There is no inspiratory pause in pressure control ventilation. There is equilibration that can be reached by increasing insp. time.

@23dfmahghd 3 жыл бұрын

What is the name of the application that you use for explanation

@javaidhassan3921 3 жыл бұрын

Acid base balance basic concept

@Rene-uz3eb 2 жыл бұрын

I hope these vents when backstopping at say 14 breaths a minute stop that automatic cycle if the patient breathes on their own, rather than superimposing assisted breaths with the backstop breaths.

@Rene-uz3eb 2 жыл бұрын

Nope, they don't. Only when there is overlap of assisted breath with automatic breath

@rationalclinicalmedicine9732 3 жыл бұрын

Very informative pls send me link for all videos on mechanical ventilation

@RespiratoryReview 3 жыл бұрын

You’ll find all the mechanical ventilation videos in the playlist called “Principles of Mechanical Ventilation”. You can copy links to the whole playlist or individual videos there. Thanks

@rationalclinicalmedicine9732 3 жыл бұрын

Pls add video about HFNC..AS IM WORKING IN COVID ICU .......,......AS MED CONSULTANT. WE DON'T HAVE RT IN OUR TEAM.........

@RespiratoryReview 3 жыл бұрын

@@rationalclinicalmedicine9732 there is a video on HFNC on my page.

@rationalclinicalmedicine9732 3 жыл бұрын

@@RespiratoryReview thanks a lot......

@rationalclinicalmedicine9732 3 жыл бұрын

@@RespiratoryReview great......thaks

@rtstudent2752 9 жыл бұрын

never mind lol i was overthinking lol

@Rene-uz3eb 2 жыл бұрын

8:57 I disagree that this was potentially lost lung volume. Flow is already minimal by this time, so it's more like you're wasting time, not air, if you waited until lungs were at capacity. If you want to get a proper answer you need to formulate this as a gas flow maximization problem and mathematically optimize it. Though the optimal solution probably won't make a big difference.