Top
20
Doctor insights on: Cardiac Conduction Defects

Share
Dr. Tim Conrad
5 doctors shared insights

Cardiac (Definition)

Cardiac translates literally to "heart, " and any place the term is seen, such ...Read more


2

2
What does sinus rhythm with nonspecific intraventricular conduction defect means? is it serious?

What does sinus rhythm with nonspecific intraventricular conduction defect means? is it serious?

No not serious: Your rhythm is normal. The nonspecific intraventricular conduction defect means that your complexes are wide in no specific ( right or left bundle branch pattern) pattern. This can happen as you age, if you smoke, as part of ischemic or other heart disease. It depends on the context in which you had the ECG done. In general it is nothing to worry about but good to know and possibly have a copy ...Read more

See 1 more doctor answer
3

3
Cardiac catherisation - for atrial septal defects, can you tell me more?

Cardiac catherisation - for atrial septal defects, can you tell me more?

Sometimes: Cadiac catheterization (right or left) is sometimes done for ASDs but only for more unusual cases. Most are seen well on a cardiac echo or cardiac MRI and a cath is not necessary unless there is worry for pulmonary hypertension or coronary artery disease etc. ...Read more

4

4
Can congenital heart defects or certain drugs result in increased cardiac output? What else causes it? Mine is 7.2lmin squared.

Can congenital heart defects or certain drugs result in increased cardiac output? What else causes it? Mine is 7.2lmin squared.

CO = HR x SV: Cardiac output (co) is the volume of blood pumped per minute, and related to heart rate (hr) and stroke volume (sv) (volume per heart beat). It can be affected by many bodily activities. An increase in either hr or sv can result in inceased co. So any drug that increases hr (caffeine, etc) can result in incresed co. Certain congenital heart defects (such as septal defects) can alter co. ...Read more

See 1 more doctor answer
6

6
Is it possible to have a genetic cardiac defect leading to ventricular arrhythmia/sudden death ... Even with no family history of any heart defect?

Is it possible to have a genetic cardiac defect leading to ventricular arrhythmia/sudden death ... Even with no family history of any heart defect?

Yes: It is possible for all of your family to be heterozygous for an abnormality and therefore asymptomatic and you are homozygous and at risk. It is unlikely that you would have a problem of this nature and not have had serious symptoms or diagnostic evidence by the time you were 20. You need to get control of your anxiety. You have a normal echo and a loop recorder in place. Take your Xanax (alprazolam) and chill ...Read more

7

7
Confused by terms: what is chd, coronary or congestive or congenital heart disease or defect?

Confused by terms: what is chd, coronary or congestive or congenital heart disease or defect?

Confusing: Adults cardiologists often use the 3-letter acronym, chd, for coronary heart disease. Pediatric cardiologists use the same for congenital heart disease. Answer depends on who is using it usually. Always ask physicians to speak in words, not letters. They should. ...Read more

See 1 more doctor answer
8

8
What are nerve conduction studies?

What are nerve conduction studies?

Test nerve function: They are a way to test the function of nerves in the body, looking for focal (like carpal tunnel) or generalized (like diabetic neuropathy) problems. They are performed by stimulating the nerve electrically (which feels like touching a doorknob after shuffling your feet on a carpet on a dry day), and recording the response. They are uncomfortable, but very helpful in clarifying a diagnosis. ...Read more

See 1 more doctor answer
9

9
Can nerve conduction tests be wrong?

Can nerve conduction tests be wrong?

No: Though there are limitations on what a nerve conductions test can show. If it shows something (and is done by a knowledgeable physician), it is definitely there. It may not be sensitive enough to pick up subtle changes. Not every nerve condition is detectable by this test. If done too soon after an injury (less than 3 weeks), may not show up. If symptoms are worsening, it is worth retesting. ...Read more

10

10
Does a nerve conduction study and an emg hurt?

Does a nerve conduction study and an emg hurt?

Maybe uncomfortable: Most patient's tell me it was not as painful as anticipated. The ncs involves electrical stimulation of the nerves, the EMG involves inserting a very small needle into several mucles. I think most patients describe the test as uncomfortable not painful. ...Read more

See 1 more doctor answer
11

11
What is a nerve conduction velocity (NCV) test?

What is a nerve conduction velocity (NCV) test?

Part of EMG: Nerve function can be tested using electromyography, and the NCV test applies an electrical shock over the nerve to ascertain if normal velocity and voltage is present. Patterns of nerve abnormality can diagnose different diseases. ...Read more

12

12
Difference between nerve conduction study and emg?

Difference between nerve conduction study and emg?

See below: The EMG portion uses a small needle to directly examine muscle function, and the nerve conduction part uses electrical shocks to measure nerve function. Together the study gives a good idea of the nature of the pathology and location, but can also assess the prognosis and character, and gives often guidance towards an eventual diagnosis. ...Read more

See 1 more doctor answer
13

13
What does a normal emg/nerve conduction test tell you?

What does a normal emg/nerve conduction test tell you?

Interpretation: Assuming the test was comprehensive and technically competent, this can eliminate large fiber neuropathy, and most muscle diseases. But does not eliminate small fibre neuropathy, or disease of brain and/or spinal cord. Symptoms due to intermittent nerve compression are not fully excluded either. ...Read more

See 1 more doctor answer
14

14
What can I expect from an emg, or nerve conduction test?

What can I expect from an emg, or nerve conduction test?

Tolerable discomfort: There are two parts to an EMG test: nerve conduction studies and electromyography. Nerve conduction studies feel like a short, electrical impulse and are, in a word, annoying. Emg uses a fine wire electrode to record from muscles and feels like an insect bite. It is not as bad as a shot or IV or blood draw. Several muscles and several nerves are usually checked. ...Read more

See 1 more doctor answer
15

15
What serious conditions can nerve conduction tests diagnose?

Many.: Nerve conduction studies and electromyography (EMG) can diagnose neuropathy (nerve problem), radiculopathy (pinched nerve), myopathy (muscle problem), and other conditions such as ALS (lou gehrig's disease) and myasthenia gravis. ...Read more

16

16
Is conduction velocity the same is nerve conduction velocity?

Yes: Both are ways of representing the speed at which signals travel down the peripheral nerves. Conduction velocity is decreased in diseases that damage the nerve insulation, either focally (as in carpal tunnel syndrome) or globally (as in guillan barre). ...Read more

See 1 more doctor answer
17

17
What sort of problem is an atrio-ventricular node conduction block?

What sort of problem is an atrio-ventricular node conduction block?

AVB has 3 flavors: There is 1st, 2nd and 3rd degree av block. 1st degree is just slower conduction through av node than normal. In 2nd degree there is a progressive slowing of conduction until complete failure to get through and then the cycle repeats itself . It is usually not symptomatic. In 3rd degree there is no conduction getting through and the ventricles beat by an escape beat that is usually very slow. ...Read more

See 1 more doctor answer
18

18
What is the definition or description of: nerve conduction velocity?

EMG: Nerve conduction velocity is the speed with which a nerve transmits it's signal on EMG testing. It can be slowed by damage by compression, or by medical conditions such as neuropathy of various causes. ...Read more

See 1 more doctor answer
19

19
What is the definition or description of: nerve conduction and electromyography?

See below: An electromyogram (EMG) measures the electrical activity of muscles at rest and during contraction. Nerve conduction studies measure how well and how fast the nerves can send electrical signals. An EMG is done to find diseases that damage muscle tissue, nerves. A nerve conduction study is done to find damage to the peripheral nervous system. ...Read more

See 2 more doctor answers
20

20
Hi doctors, can you tell me what is semmes weinstein and abnormal nerve conduction?

Hi doctors, can you tell me what is semmes weinstein and abnormal nerve conduction?

Well: Semmes Weinstein is the name of type of monofilament that is used to assess integrity of tactile stimulation to see if you might have a discrepancy or possible neuropathy. Nerve Conduction Study is a test that evaluates the speed of signals through nerves. If there is a slowing of nerves it can suggest abnormalities. ...Read more