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what do rabbit ears on ecg mean

by Jorge Botsford Published 4 years ago Updated 2 years ago

What do rabbit ears on ECG mean?

  • Coronary artery disease.
  • High blood pressure.
  • Heart valve disease.
  • Enlarged or weakened heart muscle (cardiomyopathy)
  • Heart infection (myocarditis)
  • Heart attack.
  • Congenital heart defects.
  • Certain heart rhythm medicines.

However, in Brugada's syndrome, an ECG tracing similar to the tracing of an RBBB can be a sign of danger. A helpful hint for recalling an RBBB is “rabbit ears.” The QRS complex can resemble rabbit ears in V1 and V2. There are two peaks of the R wave (R and R'). In an LBBB, the QRS complex has a recognizable morphology.Jul 6, 2007

Full Answer

What does a bunny ear look like on an ECG?

The appearance of "bunny ears" is a hallmark of a bundle branch. Click to see full answer. Thereof, what does a bundle branch block look like on an ECG? The ECG will show a terminal R wave in lead V1 and a slurred S wave in lead I. Left bundle branch block widens the entire QRS, and in most cases shifts the heart's electrical axis to the left.

What does it mean when a rabbit has ears up?

The position of a rabbit’s ears says a lot about how it’s feeling. Ears that are almost touching mean a relaxed rabbit. Ears that are up and erect mean that a rabbit is alert to noises and sounds. If your rabbit’s ears are flattened, this means that it’s scared. Ears that are held back mean an angry rabbit.

Is the “Bunny ear” pattern always present in a RBBB?

A typical “bunny ear” pattern is not always present in a RBBB, as the R or the R’ may be very small; therefore, do not rely on identifying “bunny ears” to diagnose a RBBB. Here is an example of a QRS complex with a RBBB pattern, but without the typical rsR’ pattern:

How do I know if my rabbit has an ear infection?

Bunnies with ear infections will often hop around in circles and have their head slightly tilted. Other symptoms include: If you notice any of these symptoms in your rabbit, it’s best to make an appointment with your vet.

Which heart block has bunny ears?

The ECG criteria for a right bundle branch block include the following: QRS duration greater than 120 milliseconds. rsR' “bunny ear” pattern in the anterior precordial leads (leads V1-V3) Slurred S waves in leads I, aVL and frequently V5 and V6.

Which bundle branch block has bunny ears?

The ECG criteria for a right bundle branch block include: rsR' "bunny ear" pattern in precordial leads. Slurred S waves in leads I, V5, and V6.

What causes rabbit ears in bundle branch block?

Left bundle branch block is generally an indicator of left ventricular disease, most often cardiomyopathy. Common causes of LBBB are hypertension; coronary artery disease; acute myocarditis; and valvular disease, especially aortic stenosis.Dec 17, 2010

Is a right bundle branch block serious?

How serious is a right bundle branch block? If you have no symptoms and no heart disease, a right bundle branch block is not serious. But if you've already had heart failure or a heart attack along with right bundle branch block, it puts you at a higher risk of death.Aug 9, 2021

Which is worse RBBB or LBBB?

Conclusions. In patients with LVEF<35%, RBBB is associated with significantly greater scar size than LBBB and occlusion of a proximal LAD septal perforator causes RBBB. In contrast, LBBB is most commonly caused by nonischemic pathologies.May 22, 2013

Is RBBB life threatening?

In people with known or suspected heart disease, right bundle branch block is associated with a greater risk of death, especially after a heart attack. Some people with right bundle branch block may ultimately need a permanent pacemaker, but this is rare.

Can RBBB go away?

RBBB may be permanent or transient. Sometimes it appears only when the heart rate exceeds a certain critical value (rate-related RBBB). By itself, RBBB does not require any specific treatment.

How is a bundle branch block treated?

If you have bundle branch block with low heart-pumping function, you may need cardiac resynchronization therapy (biventricular pacing). This treatment is similar to having a pacemaker implanted. But you'll have a third wire connected to the left side of your heart so the device can keep both sides in proper rhythm.Nov 20, 2021

How long can you live with right bundle branch block?

The survival rate after a median follow‐up of 16.6 years was lower in patients with RBBB (23% versus 53%; HR, 2.19; 95% CI, 1.73–2.78; P<0.001); however, after adjustment for baseline risk factors, the risk associated with RBBB was no longer significant (HR, 1.10; 95% CI, 0.86–1.40; P=0.45).Sep 14, 2020

What 3 foods cardiologists say to avoid?

Here are eight of the items on their lists:Bacon, sausage and other processed meats. Hayes, who has a family history of coronary disease, is a vegetarian. ... Potato chips and other processed, packaged snacks. ... Dessert. ... Too much protein. ... Fast food. ... Energy drinks. ... Added salt. ... Coconut oil.Feb 28, 2022

Can stress cause a bundle branch block?

The incidence of exercise stress test-induced left bundle branch block (LBBB) is rare and reportedly occurs in approximately 0.5-1% of all patients undergoing exercise testing [1].Aug 23, 2021

Can right bundle branch block be caused by stress?

Underlying Heart and Lung Disease This makes the right bundle branch susceptible to damage and stretching whenever the right ventricle is placed under stress of any kind. Right bundle branch block will often occur with any condition that affects the right ventricle.Mar 2, 2022

What is the myth number for rabbit ears?

Myth Number 2: If the right rabbit ear (R') is taller than the left rabbit ear (r) then you have a normal RBBB and everything is OK.

What happens when the left rabbit ear is taller than the right?

When the LEFT rabbit ear (r) is taller than the right, there is virtually nothing else that is going to cause that other than ventricular ectopy. Normal RBBB's do NOT present that way. But unfortunately, the converse is not true: BOTH ectopy AND aberrancy can result in RBBB with the right "rabbit ear" taller than the left.

How long is the conduction delay in the right bundle branch?

There IS a conduction delay in the right bundle branch if the “incomplete RBBB” is between 0.10 and 0.12 seconds. However, pay more attention to the width rather than the rSr’ morphology. The rSr’ pattern is very common and can be quite normal in many people. We used to call it a “cristal” (no, I spelled it correctly!) pattern because it represented a depolarization wave that ended up in the right ventricular outflow tract near the “crista interventricularis.” Most adults end the cardiac depolarization in the left basal lateral area, but younger people (less than 40 years) often end the depolarization in the right ventricular outflow tract area. That is why you occasionally see a small S wave in V5 and V6 and occasionally Lead I (though not the typical “wide, slurred S of RBBB). You can also get this pattern if you put the V1 and V2 electrodes a bit too high on the chest wall.

Do rabbit ears have to be in V1?

Rabbit ears (rSR') do NOT have to be present in V1 during right bundle branch block. Just look at the ECG at the top of this post! Myth Number 2: If the right rabbit ear (R') is taller than the left rabbit ear (r) then you have a normal RBBB and everything is OK. Again, false false false.

Is rabbit ears required for RBBB?

Let's look at Myth #1 - the presence of rabbit ears in V1. An rSR' is very characteristic of RBBB but it is certainly NOT a requirement. Here are the three requirements for right bundle branch block:

Can a rabbit ear be a RBBB?

A typical “bunny ear” pattern is not always present in a RBBB, as the R or the R’ may be very small; therefore, do not rely on identifying “bunny ears” to diagnose a RBBB. Here is an example of a QRS complex with a RBBB pattern, but without the typical rsR’ pattern: A “rate-dependent” right bundle branch block can also occur during times ...

Can a QRS complex be a RBBB?

Some variations of right bundle branch blocks can occur. There are times when a QRS complex may appear in a RBBB pattern intermittently. This is the case in premature ventricular contractions that arise from the left ventricle, whichtake time to travel to the right ventricle, thereby resulting in a RBBB QRS morphology.

Ears backward

To correctly interpret this body language, you need to consider if your bunny is relaxed or agitated and angry. Their mood will help you correctly decode the various signal that this pet might be sending to you.

Ears Lying straight backward

If it happens after exercise, it may indicate your bunny is tired and he or she is trying to relax. In this case, the ears will not be completely down. He is only taking a break and will probably continue exercising.

Rabbit shaking ears and scratching them

If you notice this behavior. You need to begin by examining the ears to see if all is well. In most cases, this behavior is a sign of infestation by parasites such as ear mites or anything else that is irritating.

Sitting on hind legs with ears and nose upward

This may be a means of trying to be alert. This might indicate the bunny does not totally trust his or her environment.

One ear forward, one ear on the back

This gesture means that your bunny can hear you but not interested or paying much attention to what you are saying. He or she is trying to say, “something is going on, but it doesn’t yet merit my full attention.” [ 1 ]

Shakes ears and hops

Your bunny is happy and excited. He may be inviting you to go play with him or maybe excited if you are about to feed him. This might be accompanied by other happy sounds such as humming, clucking or purring or happy body languages including binkying, flopping or doing a bunny 500, among others.

Signs of anger or displeasure

The following positions mainly indicate that this critter is about to be angry, angry already or displease but can also indicate other things.

What do rabbit ears mean?

Whether drooping, twitching, or up and alert, they’re rarely stationary. Instead, your rabbit’s ears cycle through a variety of positions.

What does it mean when a rabbit's ears are up?

Ears that are almost touching mean a relaxed rabbit. Ears that are up and erect mean that a rabbit is alert to noises and sounds.

Why do rabbit ears bounce?

Lop breeds, like their name implies, will brandish this feature. Their ears are often in this position because they are thicker, longer, or both. According to Genetics, lop breeds owe their droopy ears to a mutated gene.

Why do rabbits rest their ears down?

If the ears rest down after a moment, the rabbit might have decided the sound was unimportant. This reaction could be entirely for your rabbit’s benefit. However, the bunny could also be trying to alert you or other animals to the sound. Wild rabbits often live in colonies.

What does it mean when a bunny's ears change?

Illness can also impact the way your rabbit moves its ears. A sudden change in its default ear position may indicate infection or heat stroke.

How old do rabbits have ears?

A rabbit’s genes will determine if it has lop ears. Aside from genetics, age plays a role. Baby rabbits less than 9 to 13 days old cannot keep their ears erect.

Why does my rabbit make a noise?

That means your rabbit is listening, but the noise isn’t worth its full attention. Perhaps it doesn’t think of the noise as a potential danger. The sound could be something it’s used to. It could also be so faint that your rabbit doesn’t think it’s dangerous yet.

What does it mean to have rabbit ears?

rabbit ears in American English excessive sensitivity to criticism, teasing, etc. said as of a ballplayer.

What does the woman with bunny ears emoji mean?

Emoji Meaning An iteration of the Playboy Bunny known in Japan as a Bunny Girl. The two-person version of this emoji is often used as a display of friendship, fun, or “let’s party”. People with Bunny Ears was approved as part of Unicode 6.0 in 2010 under the name “ Woman with Bunny Ears ” and added to Emoji 1.0 in 2015.

What does it mean when a guy calls you a bunny?

He doesn’t want to use words like honey, seeetie, etc. Bunny is a form of endearment, in other words, a sweet nickname he chose to call you.

Do rabbit ears work on smart TV?

Connect your rabbit ears to your digital converter box or directly into your digital TV. If you have a digital converter set up, plug a cable from the converter to the back of your TV. A weak digital signal may result in ghost images or no image at all.

How do you aim rabbit ears?

This means you want the rabbit ears to resemble one long pole. Keep moving the antenna down toward the floor one inch at a time until you get a signal.

Are rabbit ear antennas better?

Typically rabbit ears are good for VHF and loop for UHF. If you’re getting good signal you may not see any advantage with something marketed as “HD Antenna ”… in fact most “leaf” antenna are good at UHF and sometimes VHF… so you might get less out of a leaf.

Do rabbit ears still work?

However, an old indoor antenna such as a rabbit ears can get a digital signal and transmit it to a digital TV provided the broadcast signal is strong enough.

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