Pulmonary capillary pressure and pulmonary capillary wedge pressure (PCWP) | Dr Vivek Nalgirkar |

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Pulmonary capillary pressure is the pressure that exists naturally in pulmonary capillaries. Pulmonary capillary wedge pressure (PCWP) is not a pressure naturally existing in pulmonary capillaries; it reflects the left atrial pressure.
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21 июл 2024

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Комментарии : 88

@georgeiribar8412 Год назад

Sr. You speak very clear and direct, your concepts are crystal clear. Good job.

@VivekSirsPhysiology Год назад

Thanks…!

@faizankhan-jp2my Год назад

That is why pcwp is more in Left ventricular heart failure then right vent heart failure.. Thanku for this amazing concept

@idaraakpan1417 Год назад

I love this!!! this has answered so many questions that I had.

@JJ-ey5zj Год назад

thank you i have been struggling ti understand this concept for so long. now i understand. thank you

@Anelej96 7 месяцев назад

amazingly explained!! thank you legend! 💪

@SardarKhan-mf5lu 11 месяцев назад

Thank you sir finally understood this after 5 years

@joseemiliano5947 3 месяца назад

Huge thanks for the clear explanation, Sir! really helped me on my studies.

@VivekSirsPhysiology 3 месяца назад

Welcome..!

@kishusain6607 Год назад

Thanku so much to give such a clear explanation......

@shahabuddin6149 Год назад

What a great lecture,more beneficial for me thanks sir keep it up

@VivekSirsPhysiology Год назад

Keep watching

@madihaanwar7991 6 месяцев назад

Thanks Sir, u explained very nicely.

@VivekSirsPhysiology 6 месяцев назад

Thanks!

@doctorelectron5998 Месяц назад

Hats 🎩 off sir ☺️ you r the only one who made me understand it

@VivekSirsPhysiology Месяц назад

Thanks..!

@surbhisharma7594 14 дней назад

The explanation is so simple and very good

@VivekSirsPhysiology 14 дней назад

@@surbhisharma7594 Thanks.

@sayedasubiya-gu6zu 3 месяца назад

Fabulous explanation

@VivekSirsPhysiology 3 месяца назад

Thanks..!

@harimurugan2324 10 месяцев назад

Best explanantion

@salmawaleed3390 Месяц назад

Perfectly explained 👏🏻

@VivekSirsPhysiology Месяц назад

Thanks

@vibrantm9298 Год назад

thank you for the video , clearly explained

@VivekSirsPhysiology Год назад

Glad it was helpful!

@axoltaxis5313 5 месяцев назад

thank you sir !

@ehadalbusaidi4779 Год назад

Wow such a genius ❤

@sohailislam39 6 месяцев назад

Excellent sir

@VivekSirsPhysiology 6 месяцев назад

Thanks…!

@yahyaaljuba4238 2 месяца назад

Nice explanation sir

@VivekSirsPhysiology 2 месяца назад

Thanks…!

@user-re7zf9we7o 8 месяцев назад

❤ awesome

@talnir5483 5 месяцев назад

best video ever about this subject. thank you so much

@VivekSirsPhysiology 5 месяцев назад

Thanks

@alexsheremett3097 27 дней назад

there was a question raised : what account for the difference between pulmonary pressure and wedge pressure...

@VivekSirsPhysiology 27 дней назад

Mentioned it in the video. Pulmonary pressure is when blood is freely flowing through the pulmonary circuit. Wedge pressure when the flow is obstructed.

@alexsheremett3097 27 дней назад

@@VivekSirsPhysiology Ok.. But my question is WHY the pressure when the flow is blocked is lower than in pulmonary artery ... However to my senses it should be at least higher... Logically speaking l

@VivekSirsPhysiology 27 дней назад

@@alexsheremett3097 Well it means, the concept needs to be revisited. We are not looking for the pressure BEFORE the wedge. We are looking for the pressure BEYOND the wedge. Coz, that’s where lies the left atrium. And this whole exercise is to measure the pressure in the LA.

@ines4802 2 месяца назад

thank you professor ! I have a question though (which may be a little ignorant), when measuring PCWP, why is the pressure in left atrium not inferior since its a chamber of a bigger volume compared to the pulmonary capillaries ? (there is more free space, so wouldn't it be more low pressure ?)

@VivekSirsPhysiology 2 месяца назад

Hello. Yes, that’s the case normally. And hence the blood flows from the pulmonary capillaries to the left atrium (high to low pressure). In measuring of PCWP though, we are creating a wedge and stopping the blood flow. From the point of the wedge up to left atrium, there is no flow for some time. Since no flow, there is no drop of pressure. From the point of wedge to LA, it becomes an equilibrated system or chamber (for a while), with entire distance having the SAME pressure. So, if we measure the pressure just beyond the wedge, it gives us the LA pressure.

@ines4802 2 месяца назад

@@VivekSirsPhysiology thank you !

@ayushdas_01 4 месяца назад

Thanks sir

@VivekSirsPhysiology 4 месяца назад

Welcome

@ishasharma6079 Год назад

Could you make a video explaining hysteresis and how surface tension/surfactant concentration in the alvioli may influence it?

@VivekSirsPhysiology Год назад

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Ezjx311l4vA.html

@VivekSirsPhysiology Год назад

Two videos are already there. Compliance part 1 and part 2. Hysteresis and effect of surface tension explained. Check it out; playlist of Respiratory system

@ishasharma6079 Год назад

@@VivekSirsPhysiology thanks!! Will watch them right now but I have a quick question. I was wondering, if you have lungs in which surfactant has been removed, will the hysteresis in their Pressure Volume curve increase or decrease from normal conditions? I will really appreciate an answer. Thanks!

@VivekSirsPhysiology Год назад

@@ishasharma6079 if surfactant is removed, in all probability, water might get filled into alveoli. Surfactant is partly responsible for keeping the alveoli dry. Now, if alveoli are filled with water, the hysteresis will decrease. The pressure-volume relation will become quite linear, and will follow similar path in inspiration and expiration.

@ishasharma6079 Год назад

@@VivekSirsPhysiology so like saline filled lungs? And what would be the effect on compliance would u say? Thanks!

@huzaifashareef471 9 месяцев назад

Big fan sir!

@VivekSirsPhysiology 9 месяцев назад

Thanks…!

@FunkyWeb14 Год назад

Good day I have a question please if anyone can answer ,it will be great :) So By inserting the catheter through the pulmonary valve, it won't damage it or not letting it close properly ? After the procedure can't it cause some kind of regurgitation etc ? same goes for the tricuspid . Thank you

@VivekSirsPhysiology Год назад

Cardiac catheterization is an established procedure. It is done under radiographic guiding. There are catheters with special tips. It is not a damaging procedure.

@FunkyWeb14 Год назад

@@VivekSirsPhysiology Thank you sir, Have a wonderful day . And God bless you for all the help you're giving to your fellow students

@saraali-ho8fx Месяц назад

❤❤❤

@mikuprepladder 9 месяцев назад

sir can you please explain again pul cap wedge pressue if there is no flow then how there is no pressure drop/ change / difference because if there is no flow then there would be fall in presure and sir can you please explain what is pulmonary end diastolic pressure

@VivekSirsPhysiology 9 месяцев назад

Flow, whenever it occurs, is due to the pressure difference. Now imagine that we have created a wedge. The blood flow reaching the wedge can not cross the wedge. All its kinetic energy is dissipated. So whatever pressure was there in the pulmonary vessels, it will be before the wedge. Beyond, there is a continuous path without any flow. So, left atrial pressure will be the pressure in that entire path, beyond the wedge.

@VivekSirsPhysiology 9 месяцев назад

Pulmonary end diastolic pressure is 8 mm Hg.

@mikuprepladder 9 месяцев назад

thank you very much sir now i got the concept only i wasnt able to understand the continous path?@@VivekSirsPhysiology

@VivekSirsPhysiology 9 месяцев назад

Can you please DM ? It will be easy to reply , and there will be notification too.

@Khan.Ahamad450 Месяц назад

Best best best

@suhasdhole5170 Месяц назад

Sir... pulmonary artery catheter is inserted through IJV ..not through any other vein..in clinical practice

@VivekSirsPhysiology Месяц назад

Thanks……I stand corrected. Regards,

@preeteshkumar9810 7 месяцев назад

Thank you Sir I have two questions 1) Is PCWP also a measure of LVEDP ? 2) Why PCWP falls in ARDS ?

@VivekSirsPhysiology 7 месяцев назад

PCWP primarily measures the LA pressure. However, a rise in LVEDP will also increase the LA pressure (due to congestion), and consequently will show up in PCWP. ARDS will compress the pulmonary vessels. Blood flow to LA will decrease. LA pressure will decrease, hence, PCWP will decrease (remember, it’s NOT the pulmonary capillary pressure; it’s the LA pressure.)

@preeteshkumar9810 7 месяцев назад

@@VivekSirsPhysiology ❤️

@applewhite6544 4 месяца назад

🙏🙏🙏🙏

@TechnoNeelpariHIMACHAL Год назад

Good evening Sir Could you please suggest topic for thesis

@VivekSirsPhysiology Год назад

Current trends (in Physiology) are - Lifestyle intervention, sports medicine, yoga, aviation physiology. It depends on availability of resources. For example, if a gym is available nearby, or some sports academy, then the topic can be - “Effects of various nutritional supplements on the muscle mass and endurance”. If yoga center is available, then - “effects on pranayam breathing or nostril breathing on neurophysiological parameters”. If hospital is available nearby then - “effects of lifestyle intervention on various lifestyle diseases (like dose reduction, subjective improvement, etc)”

@TechnoNeelpariHIMACHAL Год назад

Thank you so much Sir 😊🙏

@TechnoNeelpariHIMACHAL Год назад

Good afternoon Sir Plz suggest best book for MD physiology Pg exam

@VivekSirsPhysiology Год назад

I think I missed this msg. Is it still relevant? If it is, then the two books that are close to my heart are - Berne & Levy, and Boron and Boulpaep. Then of course there is Ganong.

@TechnoNeelpariHIMACHAL Год назад

I mean best book from where we can write paper for Pg exam Sir suggest any topic for thesis

@VivekSirsPhysiology Год назад

Ganong, and Berne & Levy are the two best titles. Understand the concepts from Berne & Levy, then, write answers from Ganong.

@TechnoNeelpariHIMACHAL Год назад

Thank you so much Sir 😊