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Mechanisms of cardiac arrhythmias | Tachyarrhythmias | Cardiovascular Pathophysiology | 

Physiology Open
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29 окт 2024

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Комментарии : 119   
@mohammadarafkhan69
@mohammadarafkhan69 Год назад
I have watched many lectures special about this topic almost 15 video but they couldn't make me understand. I am very pleased with ur lecture mam.all my doubts has been cleared .Thanks a lot from bottom of my heart.
@PhysiologyOpen
@PhysiologyOpen Год назад
Thank you so much. Somehow was not in very good mood today but your comment uplifted me. I am so glad
@celestla
@celestla 4 года назад
i have been looking everywhere for a proper explanation for the triggered activity.... nobody explained it like you did, thank you so much!!!
@PhysiologyOpen
@PhysiologyOpen 4 года назад
Delighted ...physiology does make understanding pathophysiology conceptual
@Nemesis930
@Nemesis930 4 дня назад
My fav channel for physiology forever and ever😭 loootttsss of looovee I pray you have a blessed life ❤️❤️❤️
@PhysiologyOpen
@PhysiologyOpen 3 дня назад
Thank you so much 🙂
@rinkyyadav9168
@rinkyyadav9168 Год назад
Ma'am please never stop making videos. We are eternally grateful to you 😭🙏
@PhysiologyOpen
@PhysiologyOpen Год назад
😊 hopefully I will not. Thank you 😊
@alkayadav9868
@alkayadav9868 3 месяца назад
Revising this for pharma antiarrhythmics, and ma'am you never disappoint, thank you 🙇‍♀️🙏
@PhysiologyOpen
@PhysiologyOpen 3 месяца назад
😊❤️
@riseuppant6902
@riseuppant6902 3 года назад
Thank you mam it helps me to understand pharmacology
@PhysiologyOpen
@PhysiologyOpen 3 года назад
Yup that was the aim...so glad
@F91RPG
@F91RPG 3 года назад
Thank you so much! Other videos seldom explain these small details so I couldn't understand it until I found you!
@PhysiologyOpen
@PhysiologyOpen 3 года назад
Glad I could help!
@ishantrivedi3836
@ishantrivedi3836 Год назад
Wonderful 👏👏👏👏 You are solving medicine doubts so well
@PhysiologyOpen
@PhysiologyOpen Год назад
Integrated teaching
@santhoshmanikandan7990
@santhoshmanikandan7990 3 года назад
Thanks so much mam. God bless you for taking the effort to educate us. Huge respect for you
@PhysiologyOpen
@PhysiologyOpen 3 года назад
Thankyou so much. It means a lot to me. I feel like my efforts are paying off. Thanks again
@abhinashsharma3456
@abhinashsharma3456 2 года назад
Thankyou so much ma'am , you explain everything so clearly🥺🙏
@PhysiologyOpen
@PhysiologyOpen 2 года назад
Thanks for liking
@Vasudeva061
@Vasudeva061 9 месяцев назад
Thank you soooooo much.😊😊😊......No teacher might not present arrthymias in this beautiful way.... One doubt out of context ma'am 😅.....How ischemia leads to calcium overload in the cardiac muscle cell
@PhysiologyOpen
@PhysiologyOpen 9 месяцев назад
Because CaATPases doesn’t work well, also cell permeability increases
@doraemonnobita9513
@doraemonnobita9513 3 года назад
Verry rare conceptual video Thank you 😊
@PhysiologyOpen
@PhysiologyOpen 3 года назад
Thanks for the compliment
@andrewlaug7131
@andrewlaug7131 3 года назад
Just got all stuff in one show...I was so obsessed with books and others
@PhysiologyOpen
@PhysiologyOpen 3 года назад
😊..Glad !
@ameenullah3584
@ameenullah3584 3 года назад
So much love and respect from pakistaan
@PhysiologyOpen
@PhysiologyOpen 3 года назад
❤️
@cr-ti8zt
@cr-ti8zt Год назад
Oh my gosh finally found it 🥹 Thanks madam ❤️
@PhysiologyOpen
@PhysiologyOpen Год назад
😊
@edufun958
@edufun958 2 года назад
Very nicely explained Thank you maam
@PhysiologyOpen
@PhysiologyOpen 2 года назад
Glad you liked it
@charlenec.6166
@charlenec.6166 3 года назад
Thank you so much - Finally understood the topic!
@PhysiologyOpen
@PhysiologyOpen 3 года назад
😊
@tejaswishenoy3786
@tejaswishenoy3786 3 года назад
Awesome explanation. Thank you
@PhysiologyOpen
@PhysiologyOpen 3 года назад
It’s my pleasure 😇
@kommeravinay7119
@kommeravinay7119 3 года назад
Nobidy expaljned like this . Harrisson words explained clearly thankyou. If possibke regarding excitable gap thanyou
@PhysiologyOpen
@PhysiologyOpen 3 года назад
Thanks and welcome
@rxx3081
@rxx3081 3 года назад
Great video, thank you so much!!
@PhysiologyOpen
@PhysiologyOpen 3 года назад
So glad it was helpful
@ahmadnajmi8859
@ahmadnajmi8859 2 года назад
Nice explanation
@PhysiologyOpen
@PhysiologyOpen 2 года назад
Thanks 😊
@roshp3577
@roshp3577 3 года назад
That is very helpful. Thank you🙏🏼
@PhysiologyOpen
@PhysiologyOpen 3 года назад
Happy that the video helped 😊
@faizankhan-jp2my
@faizankhan-jp2my 2 года назад
Mam delayed after depolarization can also be due to digoxin toxicity??, which decrease rmp and cell can autoexcite without any impulse.
@PhysiologyOpen
@PhysiologyOpen 2 года назад
Yes
@faizankhan-jp2my
@faizankhan-jp2my 2 года назад
@@PhysiologyOpen thanku mam for explaining with crystal clear concepts and making physio + pharmacology very conceptual to understand😊😊
@jasbirreenreen2815
@jasbirreenreen2815 3 года назад
A really good and conceptual video👍👍thank u ma'am Ma'am plss can you make video on nernst eq and it's application🙏🙏
@PhysiologyOpen
@PhysiologyOpen 3 года назад
I am recently working on RMP and Nernst equation...will be released by next Sunday
@PhysiologyOpen
@PhysiologyOpen 2 года назад
Was scrolling through some comments. Found this one where I hadn’t posted the link for rmp video...did you get it
@PhysiologyOpen
@PhysiologyOpen 2 года назад
Rmp and Nernst equation: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-E9chvgniwIM.html
@georgeculver1043
@georgeculver1043 3 года назад
Thank you very much!
@PhysiologyOpen
@PhysiologyOpen 3 года назад
My pleasure
@ansarialhazamohammedarif9762
@ansarialhazamohammedarif9762 3 года назад
Thank you sooo much Ma'am😊😊😊
@PhysiologyOpen
@PhysiologyOpen 3 года назад
Most welcome 😊
@payalsingla526
@payalsingla526 2 года назад
Excellent💯
@PhysiologyOpen
@PhysiologyOpen 2 года назад
Thank you!
@himanshupatil2282
@himanshupatil2282 2 года назад
Ma’am which book do u use / refer ?
@PhysiologyOpen
@PhysiologyOpen 2 года назад
Well i refer many to create a video - for this per se- guyton, ganong, goodman gilman, and harrison
@drfazalrabbi6965
@drfazalrabbi6965 3 года назад
What a gretest effort
@PhysiologyOpen
@PhysiologyOpen 3 года назад
Thankyou 😊
@priyankasuthar6749
@priyankasuthar6749 3 года назад
Thanku so much ma'am 🙏🙏🙏
@PhysiologyOpen
@PhysiologyOpen 3 года назад
Pleasure is all mine
@ameenullah3584
@ameenullah3584 3 года назад
What are the causes of action potential elongation,,so EAD occurs,,plzz ans
@meenakshibirasam9435
@meenakshibirasam9435 Месяц назад
Drug induced QT interval prolongation Drugs like antimalarials(quinine),cisapride etc
@akshatkhare8957
@akshatkhare8957 4 года назад
How will hyperkalemia lead to decrease in RMP..Can you please explain..it will of great help!
@PhysiologyOpen
@PhysiologyOpen 4 года назад
Put the values of potassium in the Nernst equation. You will notice that when extra cellular potassium increases, RMP becomes less negative...I.e depolarisation occurs...for underlying concepts will make a video
@akshatkhare8957
@akshatkhare8957 4 года назад
@@PhysiologyOpen Thanks a lot!!
@rishabhjoshi9136
@rishabhjoshi9136 4 года назад
@@PhysiologyOpen thank you mam
@rosy2493
@rosy2493 3 года назад
Have u made video for this concept mam..?? What heading should I search mam..???
@PhysiologyOpen
@PhysiologyOpen 3 года назад
Not yet...ok will release this video next week. Sorry for the delay
@tsewangdolma6110
@tsewangdolma6110 3 года назад
U r awesome ma'am
@PhysiologyOpen
@PhysiologyOpen 3 года назад
Thanks
@shaharieryasin6086
@shaharieryasin6086 2 года назад
wrong concept between tachyarrythmia and tachycardia. when heart is more than 100, it is specifically tachycardia not tachyarrythmia. A-fib is a tachyarrythmia but is not tachycardia. A-fib become tachycardia when associated with pre excitation.
@PhysiologyOpen
@PhysiologyOpen Год назад
Thanks
@avibose7930
@avibose7930 3 года назад
At 5:58 you mention the channels will open as the membrane potential is above the threshold, but earlier you mentioned that calcium channels do not need voltage to open but time. Does this mean that calcium channels can open after a period of relaxation, but only if the membrane potential is above threshold?
@PhysiologyOpen
@PhysiologyOpen 3 года назад
Channel closing occurs with time but opens due to voltage change
@avibose7930
@avibose7930 3 года назад
@@PhysiologyOpen I understand now. Thank you. Good video. Digitalis toxicity would be good to mention. Re-entry a touch confusing.
@PhysiologyOpen
@PhysiologyOpen 3 года назад
Ok. Thanks for the feedback
@nithinkrishna9861
@nithinkrishna9861 2 года назад
Hello ma'am you said the calcium channel unlike sodium channel open with time. If that so can you explain how or when or which potential sodium channel opens after the inactive state. Thank you.
@PhysiologyOpen
@PhysiologyOpen 2 года назад
Calcium channels slow to open
@PhysiologyOpen
@PhysiologyOpen 2 года назад
All sodium channels don’t open exactly at same potential. It’s a probability opening. So some convert from inactivated to closed state as well at less potential
@tameryousry1370
@tameryousry1370 2 года назад
can this explain orthodromic, antidromic AVRT
@PhysiologyOpen
@PhysiologyOpen 2 года назад
Yeah they are form of reentry arrhythmias
@shaziafarooq7804
@shaziafarooq7804 3 года назад
Mam, please upload a video on anterior and posterior wall myocardial infarction
@PhysiologyOpen
@PhysiologyOpen 3 года назад
Please check my video on Current of Injury...in the end I have spoken about wall infarction...but you need to see the video for understanding the end part
@PhysiologyOpen
@PhysiologyOpen 3 года назад
Hopefully you got the video
@tanmayvagh6986
@tanmayvagh6986 4 года назад
Mam is it triggered automaticity or triggered activity??..braunwald says its triggered activity
@PhysiologyOpen
@PhysiologyOpen 4 года назад
Both terms are used. I took from Harrison and Goodman Gilman. Triggered activity also very commonly used
@kanyewest315
@kanyewest315 4 года назад
Thank you!
@PhysiologyOpen
@PhysiologyOpen 4 года назад
Welcome!
@abhishek3375
@abhishek3375 Год назад
Mam, Arrhythmia due to reentry is too complicated can't understand properly
@PhysiologyOpen
@PhysiologyOpen Год назад
Need to make a separate one I think on reentry
@PhysiologyOpen
@PhysiologyOpen Год назад
Thanks for the feedback
@abhishek3375
@abhishek3375 Год назад
@@PhysiologyOpen yes mam
@that_mbbs_nerd
@that_mbbs_nerd 10 месяцев назад
Madam sinus arrythmia is same ?
@PhysiologyOpen
@PhysiologyOpen 10 месяцев назад
Physiological sinus arrhythmia is increase in heart rate with inspiration and decrease with expiration…pathological is different
@sagnilemma4424
@sagnilemma4424 3 года назад
Long live PHYSIOLOGY O
@PhysiologyOpen
@PhysiologyOpen 3 года назад
😀thanks
@AbhishekSingh-fm4ff
@AbhishekSingh-fm4ff 4 года назад
ma'am please explain chemical and neural regulation of respiration
@PhysiologyOpen
@PhysiologyOpen 4 года назад
Yeah . Whole respiratory physiology is on the cards. Currently working on CNS
@gyanpapisen7806
@gyanpapisen7806 4 года назад
Madam, RMP of cardiomyocytes is -90 mV. Threshold is how much ?
@PhysiologyOpen
@PhysiologyOpen 4 года назад
Generally +15mv is the threshold. But we don’t draw in the action potential because it recieves the signal electrically from nearby cells (syncytium) and potential change is very fast, hence a straight line from RMP
@gyanpapisen7806
@gyanpapisen7806 4 года назад
@@PhysiologyOpen I've understood it. +15 mV is the uppermost limit of Cardiac action potential or it's the threshold ? And one more doubt. Suppose action potential duration has got lengthened due to any reason. By now, L-type calcium channels have closed off. Now , due to reopening of the Calcium channels, won't a second pleatue appear as Calcium entry will nullity Potassium exit electrically? Why is the Calcium entry higher than potassium exit which results in an EAD unlike what happens in pleatue phase where both are equal in amplitude but opposite in polarity and hence the voltage inside the membrane doesn't change at all ? Kindly exolain, madam.
@gyanpapisen7806
@gyanpapisen7806 4 года назад
@@PhysiologyOpen Kindly make a video on potassium channels and their types. I m still in an ocean of doubts regarding what inward rectifier, delayed rectifier potassium channels are. These appear like an enigma to me.
@PhysiologyOpen
@PhysiologyOpen 4 года назад
Threshold..+15 mv from -90 so -75 is the threshold
@PhysiologyOpen
@PhysiologyOpen 4 года назад
Oh sure...I would love to make a video on that...will make for sure
@PharmacywithPreeti
@PharmacywithPreeti 3 года назад
Didn't understood re-entry
@PhysiologyOpen
@PhysiologyOpen 3 года назад
Will try to do a detailed video on that
@cr-ti8zt
@cr-ti8zt Год назад
Oh my gosh finally found it 🥹 Thanks madam ❤️
@PhysiologyOpen
@PhysiologyOpen Год назад
😊
@PhysiologyOpen
@PhysiologyOpen Год назад
My pleasure
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