I was having so much anxiety after recently diagnosed with aortic stenosis. However, after watching your video it was clear what option I'll use if it gets worse. Thank you very much.
I do not know if you will have time to read this reply; however, your diagram alone helped me immensely. I learn best by visual and auditory aids, and grasping the flow of blood thru the heart is key to understanding cardiac issues. Your diagram and explanations helped the FNP student a great deal. God bless you my friend.
After being diagnosed with aortic stenosis i was looking for a more detailed explanation of this disease and found it here. It is perfectly well explained and easy to comprehend even without any medical foreknowledge. Thank You very much.
Wow.... This really is very good, clear and precise explanation. Before I had the aortic valve replaced I had a lot of angina and syncope. 18:23 Only that part is not very precise (any more) because these day bioproyheses last much longer than 10 years. It's expected to last 15 to 20 years? Hopefully. I have one for 13 years now and there's only a little bit of deterioration visible.
My husband goes in to have his aortic valve replaced in 3 days. Your explanation was very helpful to understand it. The NP only confused me. Thank you!
I would like to dispute some information of yours. For those that have a life expectancy of more than 10 years are not limited to a Mechanical valve replacement as you suggest. I received what is known as a Ross Procedure. While it may be a bit more complicated but like the bio prosthetic replacements does not require long term medication such as warfarin (coumidin). I had the Ross procedure done at the beginning of September 2022. If a person is relatively healthy and can handle open heart surgery and has more than 10 years of life expectancy, I would recommend this type of valve replacement. Look up the videos by Adam Pick.
I was diagnosed today with Aortic Stenosis "(severe)"... and suddenly I'm tongue tied. I guess it hasn't settled yet. Anyway, it was all explained to me in great detail by competent doctors and I barely recall anything said. It's now 3am and I'm at the point of I'll fight and whip this ASS. At least if it can be I will - so it's probably a good idea to do a crash course on AS-Severe. Logically that means hello RUclips! This lecture is it so far. Ive got a good overview and do get there will be a lot of fine detail to go but this was exactly what I needed. Right here, right now. Many thanks! Got to run Tony (Public health advocate, Manila)
Great video lecture. The diagram was really helpful. I am not a medical student. My 82 year old father was diagnosed with aortic stenosis last week and your video really helped us to understand what this means. Thanks!
I was born with Aortic Stenosis. Contributed to a congenital heart defect. I had a procedure when I was one to relieve the pressure, though when I was 14 it got too bad and required open heart surgery. I'll tell you what, every symptom he describes is true, and now 21 with a mechanical aortic heart valve, i'm not really sure what if i traded up or down lol. Anyways we do get better, it gets easier and life moves on. Anyone out there who understands what its like to go through all of this I'm here to say amen, i do too. Not alone guys!
I am so thrilled by your deepest phenomenal lectures. Thank you so much for your very kind help in explaining and sharing your God gifted Knowledge. we need more of you.
I used this video to make my pathophysiology notes for aortic stenosis. Thank you, sir, it was very very very helpful! If only the books explained it the way you do, my med school life would be much easier 🙊
awsome,I am just amazed!I wish I had these online video lectures at the time I was studying physiopath, so I had better knowldege.I spent hours in textbooks to find out some of the points here, and still st the end some were still unclear.KEEEP the good job!you will help not only the new generation of doctors but also thousands of patients!it means you make a difference for many many!
I have just turned 60, working as RN, have found that I have AS, as well as bradycardia, just becoming symptomatic. I see a cardiologist, when is time to have valve replaced and pacemaker put in. Seems cardiologist is waiting, what for? Surely its best to do this while I am relatively fit and healthy.
Had my aortic valve replaced by a mechanical one 5 months ago. Your kind and well thought out presentation 'turned the lights on for me'. Perhaps an edited version omitting the heart sounds would be good for patients to understand whats happening. Many thanks.
and how are things, 5 yrs later? what is your age and reason for valve replacement? i am 57 , recently diagnosed BAV, my mother who died 2 months ago had AFIB, was on warfarin etc,..... died due to stroke and heart attacks,...The cardiologist told me AFIB is not related to BAV.. i sure have been tired alot lately. i initialy went to doc with heart floppy feelings,... did a 30 day heart monitor, where, the sporadic pounding and abnormal rhythm idid not occur. I recently bought a pulseoximeter to monitor, due to COVID-19,.... and the last 2 -3 times i put it on for a reading,... i see my Pulse drops to 45 or so, and lingers in the 50s and 60s,..... (blood oxygen is 90-94%) Anyhow, I'm not really sure what to do from here. Card said he'll check it every couple of years,... but shouldn't i consider valve replacement now, while i am in fairly good health? instead of waiting for more bothersome symptoms,....more damage to occur? hmm,... i started out tonight looking for info in ketamine infusion therapy is safe for someone with BAV, to treat my depression. i welcome any feedback,... thanks.
Positive Feedback: I will be using this in my echo program to augment my lectures. Very clear information. The drawings are VERY helpful. Ways to improve feedback: I would suggest a slightly faster delivery.
See the whole series at www.medcram.com along with other top quality videos including reviews in pulmonary, cardiology, infectious disease, and hematology!
I have bicuspid arotic valve and heart doctors telling me I have on the severe stage, however I saw this video and i really like your explanation and I would like to show you the medical reports and as another opinion, please pm
Great Lecture..Really helped me basically understand my Aortic Stenosis. Thank fully since this presentation, Transcatheter Valve Replacement that does use a balloon of sorts ..Quite successful.I hope My plumbing is compatable with the procedure.
Excellent video! I have a question about the walls of the left atria and ventricle. After an aortic valve has been replaced do the enlarged and stiffened walls return to normal? (maybe causing the afib to disappear? ) I ask because I am to receive a new valve in 2 weeks. Also scheduled is a cox maze procedure. Thanks for the great video. Kevin
So if all the procedures are not perfect, is there any medication or herbal preparation which can improve this severe aortic stenosis which the reader of Echo has evaluated for me.I am very thankful for your honesty stating all these procedure cannot be 100% or life time warranty then what we should do to overcome this situation. From religious point you said it can be made from pig or cow. Thus how should I survive. Need your helpful hand. Is it possible to take nitroglycerin to open these valves or not or that too will be fatal. I have high cholesterol and high blood pressure. Need your help in the form of advise, I read the same that these are temporary relief and you have to come back to have open heart surgery. Hoping to hear from you soon. God Bless.
Hi, your videos are really helpful. In aortic stenosis, you mention that the systemic circulation will dilate. I thought that in response to a decreased cardiac output, the systemic circulation would constrict and this is the reason why it is dangerous to cause a sudden drop in the SVR of patients with AS e.g. with GTN.
Informative video. However, I wouldn’t go so far as to proclaim a hard and fast rule that a bioprosthetic heart valve is best indicated for patients who have a life expectancy of less than 10 years. Bioprosthetic heart valves can be replaced via a less invasive procedure than open heart surgery, i.e. a “valve-in-valve TAVR” procedure. Moreover, socioeconomic and patient-specific factors should also be heavily considered when making the decision between bioprosthetic and mechanical valves. Warfarin can be quite tricky to dose correctly, and INR values can fluctuate wildly, especially with changes in diet, alcohol and cigarette consumption, and concomitant medications. Regular visits for INR reads may not be feasible for some patients. The risk for major bleeds and thromboembolic events may outweigh the benefits of a mechanical heart valve, even for younger patients.
Hey thanks alot for the vids theyve been really helpful for me as a med student... do you plan on doing videos on the other murmurs (MR, PR, PS, TR, TS)? im sure we'd all benefit from your insight
Great explanation. Thank you so much. I need to do a presentation on this for my LPN class and you helped me to understand it much better. Thanks again!
Thank-you this helps explain a lot for me as to what there going to do with the Aortic Stenosis Replacement a 50-50% chance of survival...I have all 3 of what he said; "Heart Failure, Angina & Syncope". This is Scary!!!!
Great lecture! From my readings and lectures I thought that the most common cause of aortic stenosis is calcification of an aortic valve since it's most commonly seen in the elderly (>65y/o). In my study notes for AS under etiology, I wrote think calcification of AV unless px is young (bicuspid valve) or is a foreigner (rheumatic heart disease). Just my 2 cents on the topic. Guess I should start looking at journals more.
Dr. Do you have email that i can possibly contact you , if in case i need to be enlightened to some topics hehe im on my third year and i really do admire your videos. Thank you. Regards
my son is having this disease by birth,he is of seven year old,it helps a lot that what is it exactly is all about??? thanks for showing this with nice explanation!!!! doctors are suggesting to for bullon angioplasty!!! can anybody suggest,what to do???
Great talk. Be interesting to discuss the role TAVI (Transcather Aortic Valve Implantation) has in high risk patients (i.e porcelain aortia etc). That said great explain of AS.
The good thing about those treatments is that they are older treatments, today a catheter with a stint is used and less invasive with patient going home within 72 hours.
Can you explain how LVEDV also goes up? I understand that LVEDP goes up from AS and the hypertrophied LV in a way to compensate for increased pressures. But wouldn't a less compliant and hypertrophied left ventricle have trouble filling? And wouldn't that decrease the LV volume? Maybe in the beginning the volume would be high because the LV can't pump the blood out effectively but I would think that over time with decreased compliance then the LV wouldn't be able to accept the volume from the LA.
Great lecture! Kind of got confused at 5:32 where it implies that a low cardiac output would lead to vasodilation of the periphery. Could you please kindly elaborate on this if you have time? Thank you!
Low cardiac output means less oxygenated blood to the systemic side?? "The primary function of vasodilation is to increase blood flow in the body to tissues that need it most. This is often in response to a localized need of oxygen but can occur when the tissue in question is not receiving enough glucose or lipids or other nutrients."
He is misspeaking at 5:32. The secondary physiologic response to reduced cardiac output is vasoconstriction, as the body's baroreceptors sense the decreased blood pressure from the low output, and respond in a way to attempt to counteract that.
The important point here, I think, is that in situations where vasodilation occurs (e.g. exercise), cardiac output normally increases to maintain blood pressure. In aortic stenosis, especially as it becomes severe, cardiac output is relative fixed. This is why syncope is a symptom of this particular valve abnormality.
Strong Medicine I can attest to this truth I believe. I was born with multiple heart defects thanks to Turners Syndrome most likely. Coarctation of Aorta (fixed via cutting muscle closed heart), still have a left ventral spetal defect and Aortic Stenosis. So heard these lectures in pieces since age 7 now 40 years old. I am NO m.d. just disclaimer, but this comment summed it up well in regards to vascular changes ...
love your video. MS2 here. the movement of P2 to the left & right during inspiration+ expiration is abit unclear as I am not sure which way your cursor was pointing. Could you please clarify ? thanks
I was diagnosed with an Aortic Valve just yesterday July 17,2019. Have to take more tests. When I was in the specialist office and he said we found you have an Aortic Valve, I asked what is that and how do I fix it and other questions. You know what he sad? Google it. At least a few words or something. Don’t know what to do, continue with the rest of tests than follow up. After get a second opinion and find another specialist for heart. Are these Doctors specialists as well as surgeons. He was referred and had good reviews. I’m freaking out with this and I’m 61. My dad died of a heart attack when he was 65 and my mom at 80 as well as heart attack. 😓
I was born with a heart murmur and aortic stenosis. It is becoming severe. They want to fix it while they still can. I am 14 and am getting a balloon valvuloplasty on march 12th to try and fix it. I am very very very nervous. They said that if my heart was worse than they thought they would have to replace the valve during it. Do you have any tips to help me understand it any batter?
Thanks for the great lecture, Dr. Seheult! I have a question about AS causing AF... I was a bit confused when you said left atrial enlargement causes AF. Don't the impulses for atrial contraction come from the right atrium? I probably need to learn more about the physiology of AF, but I find that a bit confusing. Is AF a common complication of AS? Cheers!
+Jolie Miller Thanks for the question and feedback. Electrophysiologists have noted that some of the stretching, and therefore ectopic foci (electrical stimuli outside the normal conduction pathways) comes from the pulmonary veins/Left atrium.
My first diagnosis is COPD. I had a scan which said there was damage to my aorta from my heart, could there be a mistake, meds for COPD do nothing to help
My husband had aortic heart valve surgery about 7 years ago when he was 58. He was not overweight and was a good candidate. He had a bicuspid heart valve. He has never been the same since. He had a complete personality change. He is no longer the person I knew. The doctors at the Heart Institute in Missoula refuse to say anything except that his heart is fine and it must be something else. Then why did it start after his heart surgery? You guys need to do a better job of telling people that this surgery is not as easy as everyone tells you it is.
I was having so much anxiety after recently diagnosed with aortic stenosis. However, after watching your video it was clear what option I'll use if it gets worse. Thank you very much.
I do not know if you will have time to read this reply; however, your diagram alone helped me immensely. I learn best by visual and auditory aids, and grasping the flow of blood thru the heart is key to understanding cardiac issues. Your diagram and explanations helped the FNP student a great deal. God bless you my friend.
Great to hear the illustrations have helped! Thanks so much for the comment.
After being diagnosed with aortic stenosis i was looking for a more detailed explanation of this disease and found it here. It is perfectly well explained and easy to comprehend even without any medical foreknowledge. Thank You very much.
Wow.... This really is very good, clear and precise explanation. Before I had the aortic valve replaced I had a lot of angina and syncope.
18:23 Only that part is not very precise (any more) because these day bioproyheses last much longer than 10 years. It's expected to last 15 to 20 years? Hopefully. I have one for 13 years now and there's only a little bit of deterioration visible.
My husband goes in to have his aortic valve replaced in 3 days. Your explanation was very helpful to understand it. The NP only confused me. Thank you!
i am addicted to your lectures .you are amaziiiiiiiiiiiiiiiiiiiing
I would like to dispute some information of yours. For those that have a life expectancy of more than 10 years are not limited to a Mechanical valve replacement as you suggest. I received what is known as a Ross Procedure. While it may be a bit more complicated but like the bio prosthetic replacements does not require long term medication such as warfarin (coumidin). I had the Ross procedure done at the beginning of September 2022. If a person is relatively healthy and can handle open heart surgery and has more than 10 years of life expectancy, I would recommend this type of valve replacement. Look up the videos by Adam Pick.
I was diagnosed today with Aortic Stenosis "(severe)"... and suddenly I'm tongue tied. I guess it hasn't settled yet. Anyway, it was all explained to me in great detail by competent doctors and I barely recall anything said. It's now 3am and I'm at the point of I'll fight and whip this ASS. At least if it can be I will - so it's probably a good idea to do a crash course on AS-Severe. Logically that means hello RUclips! This lecture is it so far. Ive got a good overview and do get there will be a lot of fine detail to go but this was exactly what I needed. Right here, right now. Many thanks!
Got to run
Tony
(Public health advocate, Manila)
You are an inspiration
Great video lecture. The diagram was really helpful. I am not a medical student. My 82 year old father was diagnosed with aortic stenosis last week and your video really helped us to understand what this means. Thanks!
Outstanding explanation. You are the best.
I was born with Aortic Stenosis. Contributed to a congenital heart defect. I had a procedure when I was one to relieve the pressure, though when I was 14 it got too bad and required open heart surgery. I'll tell you what, every symptom he describes is true, and now 21 with a mechanical aortic heart valve, i'm not really sure what if i traded up or down lol. Anyways we do get better, it gets easier and life moves on. Anyone out there who understands what its like to go through all of this I'm here to say amen, i do too. Not alone guys!
Same with me, I'm good.
@@graemewilliams1308 Then life expectancy is way longer than what this guy says it is.
@@shaykay3075 Well yeah, I'm 72 with no intentions to croak anytime soon.
I am so thrilled by your deepest phenomenal lectures. Thank you so much for your very kind help in explaining and sharing your God gifted Knowledge. we need more of you.
I used this video to make my pathophysiology notes for aortic stenosis. Thank you, sir, it was very very very helpful! If only the books explained it the way you do, my med school life would be much easier 🙊
Thanks for the feedback!
Great. Physicians are now being trained with RUclips....
Coaching Critic -> sad 😢 ....
Coaching Critic no, we re just having things explained one more time other than in class
I’m an HVAC tech with a lot of Mechanical skills and I find this so interesting. Nice video.
I’m a CCU nurse. Thanks for this video . Very helpful.
awsome,I am just amazed!I wish I had these online video lectures at the time I was studying physiopath, so I had better knowldege.I spent hours in textbooks to find out some of the points here, and still st the end some were still unclear.KEEEP the good job!you will help not only the new generation of doctors but also thousands of patients!it means you make a difference for many many!
I have just turned 60, working as RN, have found that I have AS, as well as bradycardia, just becoming symptomatic. I see a cardiologist, when is time to have valve replaced and pacemaker put in. Seems cardiologist is waiting, what for? Surely its best to do this while I am relatively fit and healthy.
These videos are so helpful. A nice break from constant textbook reading. THANKS!
dude im a med student and this video is awesome....i love the way u explained the reason for paradoxical splitting of s2....
Had my aortic valve replaced by a mechanical one 5 months ago. Your kind and well thought out presentation 'turned the lights on for me'. Perhaps an edited version omitting the heart sounds would be good for patients to understand whats happening. Many thanks.
and how are things, 5 yrs later? what is your age and reason for valve replacement? i am 57 , recently diagnosed BAV, my mother who died 2 months ago had AFIB, was on warfarin etc,..... died due to stroke and heart attacks,...The cardiologist told me AFIB is not related to BAV.. i sure have been tired alot lately. i initialy went to doc with heart floppy feelings,... did a 30 day heart monitor, where, the sporadic pounding and abnormal rhythm idid not occur. I recently bought a pulseoximeter to monitor, due to COVID-19,.... and the last 2 -3 times i put it on for a reading,... i see my Pulse drops to 45 or so, and lingers in the 50s and 60s,..... (blood oxygen is 90-94%) Anyhow, I'm not really sure what to do from here. Card said he'll check it every couple of years,... but shouldn't i consider valve replacement now, while i am in fairly good health? instead of waiting for more bothersome symptoms,....more damage to occur? hmm,... i started out tonight looking for info in ketamine infusion therapy is safe for someone with BAV, to treat my depression. i welcome any feedback,... thanks.
the best explanation of A.S ever
Excellent...I've always had great difficulties with cardiac valves! This is very helpful!
oriana dashi Good to hear- thank you for the feedback
Well explained.In case of congenital bicuspid valve and no symptoms are observed in normal activity,how long can the surgery wait.
Your patient and clear explanations are golden! Thank you so much!
Positive Feedback: I will be using this in my echo program to augment my lectures. Very clear information. The drawings are VERY helpful.
Ways to improve feedback: I would suggest a slightly faster delivery.
+Cindy Balfour Thank you for the feedback on the drawings and the suggestions
+MEDCRAMvideos A cool feature I noticed is that you can actually speed up the video in the tool box and I won't sound like Alvin and the Chimpmunks.
See the whole series at www.medcram.com along with other top quality videos including reviews in pulmonary, cardiology, infectious disease, and hematology!
Just done my Frec3 medical course this really helped .
Checking into Emory on Monday surgery on Thursday. This is my second surgery in 16 Year's. Pig valve leaking an mitra valve.
This needs to be updated doc it’s very useful
I have bicuspid arotic valve and heart doctors telling me I have on the severe stage, however I saw this video and i really like your explanation and I would like to show you the medical reports and as another opinion, please pm
awesome, it helps me with my step 2 studying. Seeing is way better than just reading.
Thanks Juan Rogers, I agree!
Great Lecture..Really helped me basically understand my Aortic Stenosis. Thank fully since this presentation, Transcatheter Valve Replacement that does use a balloon of sorts ..Quite successful.I hope My plumbing is compatable with the procedure.
Great explanation. 2013 though. Nowadays, there is TAVR. I'd love to see an update on this.
its amazing indeed prepearing for my exam got here accidently it seems never get out off of yr channel ..
Mohammed Omari thanks for the comment, glad the videos have helped
Excellent Video, thank you for sharing this information publicly...
Excellent video! I have a question about the walls of the left atria and ventricle. After an aortic valve has been replaced do the enlarged and stiffened walls return to normal? (maybe causing the afib to disappear? ) I ask because I am to receive a new valve in 2 weeks. Also scheduled is a cox maze procedure. Thanks for the great video.
Kevin
So if all the procedures are not perfect, is there any medication or herbal preparation which can improve this severe aortic stenosis which the reader of Echo has evaluated for me.I am very thankful for your honesty stating all these procedure cannot be 100% or life time warranty then what we should do to overcome this situation. From religious point you said it can be made from pig or cow. Thus how should I survive. Need your helpful hand. Is it possible to take nitroglycerin to open these valves or not or that too will be fatal. I have high cholesterol and high blood pressure. Need your help in the form of advise, I read the same that these are temporary relief and you have to come back to have open heart surgery. Hoping to hear from you soon. God Bless.
Hi, your videos are really helpful. In aortic stenosis, you mention that the systemic circulation will dilate. I thought that in response to a decreased cardiac output, the systemic circulation would constrict and this is the reason why it is dangerous to cause a sudden drop in the SVR of patients with AS e.g. with GTN.
Thank You so much!! Watched it several times and enjoyed every minute of it!
Informative video. However, I wouldn’t go so far as to proclaim a hard and fast rule that a bioprosthetic heart valve is best indicated for patients who have a life expectancy of less than 10 years. Bioprosthetic heart valves can be replaced via a less invasive procedure than open heart surgery, i.e. a “valve-in-valve TAVR” procedure. Moreover, socioeconomic and patient-specific factors should also be heavily considered when making the decision between bioprosthetic and mechanical valves. Warfarin can be quite tricky to dose correctly, and INR values can fluctuate wildly, especially with changes in diet, alcohol and cigarette consumption, and concomitant medications. Regular visits for INR reads may not be feasible for some patients. The risk for major bleeds and thromboembolic events may outweigh the benefits of a mechanical heart valve, even for younger patients.
+Pia Dizon yes TAVR. Is amazing and is revolutionizing cardiac care! Yes. Everything is risk benefit.
Excellent lecture....I love these educational video's. Much more helpful than reading in a book!!! Thank you! :)
thank you for this detailed explanation, you maid it very easy to understand and to remember
Very clear explanation! I hope to see other and other similar explanations about cardiac and pulmonary problems.
Thanks!!!
Hey thanks alot for the vids theyve been really helpful for me as a med student... do you plan on doing videos on the other murmurs (MR, PR, PS, TR, TS)? im sure we'd all benefit from your insight
Wow, what an excellent, clear explanation
Great explanation. Thank you so much. I need to do a presentation on this for my LPN class and you helped me to understand it much better. Thanks again!
Thank you for the video.
It's basically a simplified and easy to understand the concept for quick revision :)
Thank-you this helps explain a lot for me as to what there going to do with the Aortic Stenosis Replacement a 50-50% chance of survival...I have all 3 of what he said; "Heart Failure, Angina & Syncope". This is Scary!!!!
Best lecture I have had on this topic!!! THANK YOU.
Very clear and informative lecture. Thanks a lot.
Thank you so much for this!! This really helps me for my case study presentation :)
excellent video. I would like to see a more simplify explanation of reverse split of second heart sound.
thanks
Great lecture! From my readings and lectures I thought that the most common cause of aortic stenosis is calcification of an aortic valve since it's most commonly seen in the elderly (>65y/o). In my study notes for AS under etiology, I wrote think calcification of AV unless px is young (bicuspid valve) or is a foreigner (rheumatic heart disease). Just my 2 cents on the topic. Guess I should start looking at journals more.
Thank you so much! Im a medical student and this helped me a lot.. Very similar to harrisons (book)
+Ana victoria Mercader I remember when I was a medical student. Lots to learn in so little time. Keep at it!
Dr. Do you have email that i can possibly contact you , if in case i need to be enlightened to some topics hehe im on my third year and i really do admire your videos. Thank you. Regards
These r great!! Could you explain ECG and how to read them? Thanks
If you have no money for the operation, eating food is good for the heart, a healthy lifestyle.
my son is having this disease by birth,he is of seven year old,it helps a lot that what is it exactly is all about???
thanks for showing this with nice explanation!!!!
doctors are suggesting to for bullon angioplasty!!!
can anybody suggest,what to do???
I second the EKG request, as well as other murmurs. Thank you!
Great lecture. Thank you!
Could you do one video about acute diarrhea and mild dehydration?thank you
Great talk. Be interesting to discuss the role TAVI (Transcather Aortic Valve Implantation) has in high risk patients (i.e porcelain aortia etc). That said great explain of AS.
great video, but something that is not mentioned alot is a unicuspid aortic valve.
The good thing about those treatments is that they are older treatments, today a catheter with a stint is used and less invasive with patient going home within 72 hours.
Great videos and clearly explained! Would you consider doing some videos on fluids?
Thanks a lot! Following your videos from now on.
Can you explain how LVEDV also goes up? I understand that LVEDP goes up from AS and the hypertrophied LV in a way to compensate for increased pressures. But wouldn't a less compliant and hypertrophied left ventricle have trouble filling? And wouldn't that decrease the LV volume? Maybe in the beginning the volume would be high because the LV can't pump the blood out effectively but I would think that over time with decreased compliance then the LV wouldn't be able to accept the volume from the LA.
So, just to clarify... the type of CHF that would develop would be diastolic HF correct? Because the hypertrophy that develops will reduce the EDV?
Excellent n very helpful. 👍👍
Thanks! Now I understand better.
Great lecture! Kind of got confused at 5:32 where it implies that a low cardiac output would lead to vasodilation of the periphery. Could you please kindly elaborate on this if you have time? Thank you!
Low cardiac output means less oxygenated blood to the systemic side??
"The primary function of vasodilation is to increase blood flow in the body to tissues that need it most. This is often in response to a localized need of oxygen but can occur when the tissue in question is not receiving enough glucose or lipids or other nutrients."
He is misspeaking at 5:32. The secondary physiologic response to reduced cardiac output is vasoconstriction, as the body's baroreceptors sense the decreased blood pressure from the low output, and respond in a way to attempt to counteract that.
The important point here, I think, is that in situations where vasodilation occurs (e.g. exercise), cardiac output normally increases to maintain blood pressure. In aortic stenosis, especially as it becomes severe, cardiac output is relative fixed. This is why syncope is a symptom of this particular valve abnormality.
Strong Medicine I can attest to this truth I believe. I was born with multiple heart defects thanks to Turners Syndrome most likely. Coarctation of Aorta (fixed via cutting muscle closed heart), still have a left ventral spetal defect and Aortic Stenosis. So heard these lectures in pieces since age 7 now 40 years old. I am NO m.d. just disclaimer, but this comment summed it up well in regards to vascular changes ...
Thanks so much for these videos
Thanks for the lecture. It was EXCELLENT
Thank you for the video. It's really helpful
Thanks you so much for this awesome video , it makes it so easy to understand
excellent work !!
clearly .😁
This is so great! Thank you!
Very helpful! Thank you!
Great video! Learned so much on AS! A+
you are amazing! just the perfect amount of information
We'll organized and easy to understand... Thank you
very good and lovely
explained beautifully
thanks
love your video. MS2 here. the movement of P2 to the left & right during inspiration+ expiration is abit unclear as I am not sure which way your cursor was pointing. Could you please clarify ? thanks
8
I was diagnosed with an Aortic Valve just yesterday July 17,2019. Have to take more tests. When I was in the specialist office and he said we found you have an Aortic Valve, I asked what is that and how do I fix it and other questions. You know what he sad? Google it. At least a few words or something. Don’t know what to do, continue with the rest of tests than follow up. After get a second opinion and find another specialist for heart. Are these Doctors specialists as well as surgeons. He was referred and had good reviews. I’m freaking out with this and I’m 61. My dad died of a heart attack when he was 65 and my mom at 80 as well as heart attack. 😓
Look for a Congenital valve desease cardiologist.
as always, great lecture.
thank you! helps me very much! you're doing a great job!
Doina Ababii thank you
Awesome! May God Bless you. Thanks
Well explained!! Thanks for your time.
I was born with a heart murmur and aortic stenosis. It is becoming severe. They want to fix it while they still can. I am 14 and am getting a balloon valvuloplasty on march 12th to try and fix it. I am very very very nervous. They said that if my heart was worse than they thought they would have to replace the valve during it. Do you have any tips to help me understand it any batter?
Thanks for the great lecture, Dr. Seheult!
I have a question about AS causing AF... I was a bit confused when you said left atrial enlargement causes AF. Don't the impulses for atrial contraction come from the right atrium? I probably need to learn more about the physiology of AF, but I find that a bit confusing.
Is AF a common complication of AS?
Cheers!
+Jolie Miller Thanks for the question and feedback. Electrophysiologists have noted that some of the stretching, and therefore ectopic foci (electrical stimuli outside the normal conduction pathways) comes from the pulmonary veins/Left atrium.
Fantastic!
My first diagnosis is COPD. I had a scan which said there was damage to my aorta from my heart, could there be a mistake, meds for COPD do nothing to help
fantastic video
sir kindly add a video on RENAL ARTERY STENOSIS
this really helped
Both of my children have this. My older son has had 10 heart surgeries :(
My husband had aortic heart valve surgery about 7 years ago when he was 58. He was not overweight and was a good candidate. He had a bicuspid heart valve. He has never been the same since. He had a complete personality change. He is no longer the person I knew. The doctors at the Heart Institute in Missoula refuse to say anything except that his heart is fine and it must be something else. Then why did it start after his heart surgery? You guys need to do a better job of telling people that this surgery is not as easy as everyone tells you it is.
thank you for the video
great lecture thank you
Awesome video!!! Thank you!!
awesome. helpful as usual!