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Questions tagged [cardiology]

the branch of medicine that deals with diseases and abnormalities of the heart.

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7 views

Is TAVR/TAVI possible for patients with minimal aortic valve calcification?

I am a medical student currently learning about cardiac diseases and treatment options. Just a while back, I heard about transcatheter aortic valve replacement surgery and how it may serve as an ...
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18 views

Difference in heart muscle tissue growth (cardio vs low-rep intense weight lifting)

Below is a quote from a subreddit that says: I haven't kept up on the research, but the last thing I read back in college looked at weight lifters and long distance runners. Both types had larger ...
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1answer
20 views

What is the functional difference between cardio-pulmonary and the baroreceptors in the regulation of Blood pressure?

Guyton mentions two types of receptor- the baroreceptors and the cardiopulmonary receptors- that are involved in the maintenance of the acute changes in blood pressure. I just wanted to know how these ...
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Are there dihydropyridine receptors in Cardiac Myocytes?

There are ryanodine receptors in both the skeletal and cardiac muscles. I understand that the Ryanodine receptors of cardiac muscles are involved in Calcium-induced calcium release and have not found ...
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1answer
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What causes a notch in the atrial pressure?

I wanted to know why there is a sort of fluctuation in "E" in the tracing of the atrial pressure right before the mitral valve opens (not the notch because of the Aortic valve closure). Source for ...
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54 views

Heart Sound Samples

Does anybody have helpful sources/links that are basically recordings and playbacks of heart sounds (normal/ abnormal/ etc.) that I could just listen to while in my spare time? I am looking for ...
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87 views

Do cardiologists learn nutrition as part of their expertise in Cardiology?

Almost all physicians I recognized as suggesting medicinal nutrition either as direct therapy, preventive medicine and via "popular medicine" as with books and articles, were Cardiologists; to a ...
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1answer
132 views

Ventricular diastolic pressure?

So, I have been wondering and couldn't find texts explaining this, but why is the diastolic volume of the circulation ~80, while that of the ventricles is almost 0. To phrase it another way, why does ...
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2answers
64 views

Are defibrillator leads actually clashed against each other?

In movies or television, the doctor gets giant heavy clothing iron sized leads. Clashes them together and uses them on the patient that has a flat lined heart and after doing it 1 times per second ...
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1answer
146 views

Acceptable Macronutrient Distribution Range

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2674146/ I found some papers suggesting AMDR is not the optimum and it is too high on carbohydrates in particular. Is it generally safe to undergo a 27....
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How to assess the risk of “cardiac event” for a healthy runner? [closed]

It appears to be dreadfully not uncommon that seemingly healthy people suddenly die of "cardiac events" when doing physical exercises. Here is just another sad example: a healthy and regularly running ...
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462 views

Why is the crescendo-decrescendo systolic murmur best heard at the cardiac base?

I'm writing a paper and came across a very specific question about heart sounds. Why is the crescendo-decrescendo systolic murmur best heard at the cardiac base? and why does it radiate to carotids? ...
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What is the difference between Eisenmenger syndrome and ventricular septal defect?

What is the difference between Eisenmenger syndrome and ventricular septal defect? They are both related to a hole between the two ventricles, right?
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58 views

Is there any intelligence in heart? [closed]

Is it correct to say that heart and brain both are center of intellect ? Has there been any scientific study done to prove that like Brain, Heart also has intelligence and there are heart-signals ...
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46 views

Consistently high WBC, normal CRP in a post-cardiac arrest patient

A patient had an elective coronary angioplasty which showed 80% blocked LAD. A stent was placed. She was stable and sent home. The next day she felt unwell and collapsed with LOC for a few seconds. ...
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113 views

What's the difference between a fast heart rate during exercise, and a fast heart rate during an anxiety attack?

I'm curious to know what the difference is between having a fast heart rate during exercise and having a fast heart rate say at rest or during an anxiety attack. It's known that exercise is good for ...
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172 views

Is there a drug being developed for heart palpitations without arrhythmia? [closed]

Is there a drug being developed for palpitations without arrhythmia?
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84 views

Why do we continue compressions after the first AED shock?

I just took a CPR course and was instructed to perform 5 cycles of compressions after an AED shock (after which you wait for the AED to do another analysis). My question is: if the shock was ...
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55 views

Big difference between waking and resting heart rate

I recently got an Apple Watch and am using the HeartWatch app. I'm concerned because my sedentary heart rate is pretty high - it's about 85 bpm with frequent spikes to 100, but my waking heart rate is ...
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67 views

adequate exposure of the surgical field

What is meant by "adequate exposure of the surgical field" is this sentence: During cardiac surgery, it is necessary to aspirate blood from the cardiac chambers to provide adequate exposure of the ...
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1answer
91 views

What really happens to the heart during cardiac arrest and why is an AED useful?

I'm interested in studying medicine in the future and this question is really bothering me. So most sources would say that Cardiac Arrest occurs when the heart 'stops functioning normally' and hence ...
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1answer
46 views

Hard water and cardiovascular problems

Wikipedia cites one 1970 study by Voors claiming that drinking hard water lessens the odds of dying from atherosclerosis. The stud itself even makes some bolder claims stratified by race, namely that ...
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1answer
96 views

Eggs & heart health?

How does egg consumption impact atherosclerosis/cardiovascular disease risk? I'd especially welcome experimental studies.
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1answer
294 views

Why patient has to be awake during cardiac catheterization? [closed]

Why couldn't the physicians put the patient under during the procedure?
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2answers
148 views

Correlation between blood pressure and cardiac output in the elderly

Why does blood pressure have little correlation with cardiac output in the elderly? (Source ATLS student course manual)
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What would happen if you administered endothelin during a myocardial infarction?

I have been going through the Rhodes medical physiology and have learned about Endothelin (specifically its role in hyperplasia) and collateral vessels in slowly developed [cardiovascular disease] (...
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783 views

Period between Heart lub-dup sound S1 and S2

Just curious not asking a professional opinion, Does anyone know the average time difference between S1 and S2 sounds of the heart the so called lub-dup sound? I believe its around 150 milliseconds. ...
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A medical notation which i could not understand

My doctor (a cardiologist) always writes this in his prescription after checking his patients: A.C.J.U.NV.NJ.O. Please note all the dots will be superscripts. What does this mean?
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55 views

Why doctor wont put stethoscope stationary at one point?

Doctor so often changes stethoscope on body, Then how can he\she identify heart beat rate?
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18 views

What is the significance of the right lower node in a 12-lead electrocardiogram placement?

Given this EKG limb leads image, I noticed that the function of the right leg node in a 12-lead ecg/ekg is missing. In an actual placement I know this is present. So I need to ask, what is the ...
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1answer
138 views

How can blood pressure be high but my pulse low?

Someone whose blood pressure reads 188/134 with a pulse of 62. Read a few more times even after she woke up it stays in that area. Calm, not taking any drugs, normal weight, good health and not sick ...
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37 views

Baby with ASD VSD PDA altogether

If a baby has ASD VSD and PDA altogether, than what are the chances for his self-recovery without any heart surgery. Also how soon would you expect such a recovery? What are the things you would ...
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1answer
550 views

cardiac arrest effects on blood pressure

I was wondering about the effects of cardiac arrest on blood pressure. What would the blood pressure be while cardiac arrest? Would there be any pressure at all (because the heart can't pump blood ...
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1answer
113 views

Why is there a left ventricular volume overload in patients with Ventricular septal defect?

With VSD left to right shunt in systole logically should dilate right ventricle due to volume overload since left side pressure is higher then the right.
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1answer
1k views

Can weak people use their feet when doing CPR?

Could doing CPR with a foot cause harm to the recipient? In a situation where the rescuer were unable to continue due to fatigue of the arms, is there a way to safely do CPR with the foot?
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1answer
82 views

Is heart rate indicative of sleep phase?

Lately I've been using an alarm clock that determines what phase of sleep you are in (light or deep) so that it waits until you are at a lighter sleep phase before waking you up. It does this by ...
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2answers
120 views

If you are told you're going to have a heart attack in one month, what can you do now to prevent it?

If an unhealthy individual were given this news, could they make enough life style changes in a single month to prevent an impending heart attack without medical intervention? What would be the first ...
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2answers
1k views

Are there a maximum number of times for surgical ablations on patients with Atrial Fibrillation?

Are there any links to research which would suggest an optimum or maximum number of times for ablation on the same heart? Do chances of stopping AF symptoms change with each surgery?
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259 views

Does the digestive disorders affect the location of aorta beat around navel?

You might have experienced this. If you lie on your back on a flat surface and place your finger or thumb right over navel (men or women), and press softly down, you'd feel the beating just like ...
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1answer
160 views

Heart Attack Risk Score calculation

Someone recently mentionned to me a score to calculate my risk of having a heart attack in the next years. Unfortunately he was not able to tell me where I could access this tool (or is this just ...
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1answer
647 views

Why does breathing stop during cardiac arrest?

I've been reading about resuscitation, and found several suggestions that people don't continue breathing after effective heart function stops because the diaphragm quickly runs out of oxygen. Is ...
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1answer
74 views

Metolar XR after Lis ASD surgery [closed]

I am 33 and had an LIS, ASD closure,everything went well, however my doctor suggested me to be on Metolar XR 25mg for a year. I am worried since I had no hypertension or rhythmic disturbance but had ...
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1answer
176 views

Mechanical cardio resuscitation for asystole

We have great machines for shocking a heart out of various malfunctions. But my understanding is that the only "machine" indicated for restarting a heart that has completely stopped (i.e., "flat-...
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1answer
347 views

Can Manual External Defibrillators “restart” a heart?

On TV it appears that every time a heartbeat monitor flat-lines they pull out the paddles of a manual external defibrillator (MED) and give a few shocks, often explicitly cranking up the output when ...
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25 views

Tight upper back when running on a treadmill

When I go to the Gym and do running on a treadmill I get a tightness across my upper back when I run at 9km/h or more. It's worth noting that I have asthma and use the Brown preventer inhaler and the ...
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21 views

Why does Atropine help to stop Paroxysmal Ventricular Ahrrythmias?

Why does Atropine help to stop Paroxysmal Ventricular Ahrrythmias? Can this be explained in context to the heart's anatomy?
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1answer
222 views

Bifascicular Block In Young Male Asymptomatic Patient

An asymptomatic 25 year old male presents with an ECG pattern of bifasicular conduction block (left anterior hemi-block and right bundle branch block) after experiencing "extra/skipped beats". The ...
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219 views

Can sleeping too much damage the brain and heart?

I heard that sleeping long hours can damage brain functions and harm the heart. Is that true?
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204 views

Is there such a thing as a hard heart beat? (as opposed to a fast heart beat)

I've picked up weight lifting recently and the thing I've noticed is that it really gets the heart pumping. After a heavy set of squats for instance I can hear my heart beating in my ears and feel it ...
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320 views

Decisions about anticoagulation in atrial fibrillation: how to factor in thrombocytopenia?

The benefit of anticoagulation for prevention of stroke in patients with atrial fibrillation has been well established. However, the benefit is always to be weighed against the risk, in this case, ...