Pacemaker cells tetrodotoxin

Common Questions and Answers about Pacemaker cells tetrodotoxin

pacemaker

Avatar n tn You have suffered a great injustice, and I'm sorry for your experience. I do not know what the black substance was, or what the results of exposure may be. However, the skipped beats may be caused simply by confusion in the heart muscle itself. Your heart cells are all capable of contracting and causing the heart to beat. Usually, this job is segregated to specific cells that most people refer to as the "natrual pacemaker.
255722 tn?1452546541 The spread of electricity throughout the heart muscle is possible because all heart muscle cells, not just pacemaker cells, are excitable. Usually, the heart muscle cells keep time more slowly than normal pacemaker cells. This allows the pacemaker cells within the SA node to be in control of generating and pacing the heartbeat.
Avatar n tn Hi, am doing some research. please can you explain why an 89yr old with pacemaker kept her 70bpm pulse with a fever of 40 deg.C. Also what were the metabolic implications for her? Many thanks.
696415 tn?1228229959 The sinoatrial node (SA node) is a group of cells positioned on the wall of the right atrium, near the entrance of the superior vena cava. Cells in the SA node will naturally discharge at about 70-80 times per minute. Because the sinoatrial node is responsible for the rest of the heart's electrical activity, it is sometimes called the primary pacemaker, the natural pacemaker.
Avatar n tn The spread of electricity throughout the heart muscle is possible because all heart muscle cells, not just pacemaker cells, are excitable. Usually, the heart muscle cells keep time more slowly than normal pacemaker cells. This allows the pacemaker cells within the SA node to be in control of generating and pacing the heartbeat.
Avatar n tn The spread of electricity throughout the heart muscle is possible because all heart muscle cells, not just pacemaker cells, are excitable. Usually, the heart muscle cells keep time more slowly than normal pacemaker cells. This allows the pacemaker cells within the SA node to be in control of generating and pacing the heartbeat.
Avatar n tn By the way...I noticed the ??? near the "natural pacemaker" portion of your post. Thought I'd take a minute to help you understand. The sinus atrial node is a clump of cells in your heart that put out an electrical current that causes the rest of your cells in the atrial center of your heart to contract. The electrical current continues into the ventricular node and causes the bottom of the heart to contract immediately after that.
Avatar m tn Yes, the condition can infect the heart's natural pacemaker. The heart's "natural" pacemaker is called the sinoatrial (SA) node or sinus node. It's a small mass of specialized cells in the top of the heart's right atrium (upper chamber). It makes the electrical impulses that cause your heart to beat.
Avatar n tn If the cells are dead, a cath would not be of any help. If the cells are hibernating due to low blood flow to the area, medication can increase the blood flow to the area....angina with stress and rest normal blood flow. Your symptoms, if any, would be the issue to correct. If you are having chest pain (angina) with exertion and rest relieves the chest pain that would be stable angina and medication can be effective.
Avatar f tn These were stem cells made from my OWN STEM CELLS not embryonic. So, no chance of rejection, no extra pills to take. There is over an 80% chance of improvement. My EF was between 12 and 15% before new stem cells. Have not had another EF test yet. I am diabetic(insulin dependent.) I do have a defibrillator and pacemaker. Would be only too happy to share my experiences - they will be on-going!! It is a shame one has to go out of the country to have this procedure done.
1744581 tn?1311302411 I'm a 34 yr old female & I have a pacemaker for congenital complete heart block. I had it replaced for the first time 5 weeks ago. A recent echo showed severe hypokinesis of the apical wall. Ejection fraction is 50%. My dr said this could be due to wear my lead is at. I returned to work a 2 weeks ago after being off for a month after my surgery. I'm a prep cook & my job is pretty easy. I'm on my feet all day but I've been doing the same work for years.
1400314 tn?1280731525 d like to know what got the ventricles going again. My understanding is that the pacemaker cells in the Ventricles can take over in the event it doesn't receive a signal to beat. this is called an "escape beat". On you holter they should be able to tell if the ventricles fired an escape beat or if the next beat was something called "normal sinus rhythm" or NSR. usually the ventricles will fire an escape beat within 3-4 seconds of not getting NSR.
Avatar n tn There can be different reasons, but it generally finds a different way around, through normal heart cells. However, this can cause a delay, meaning the right chamber is contracting slower or is delayed compared to the left. This is probably what they are referring to with regards to borderline. Causes could be genetic history, certain infection types, recent heart attack, heart disease. If the cells are damaged, then there is always the option of a pacemaker.
Avatar n tn hypokinesis can also be the result of stunned cells. Stunned heart cells affected by a heart attack can be revitalized if blood/oxygen is quickly provided within a few hours to the area affected by an acute heart attack. Akinesis is different from hypokinesis in that the heart cells affected are necrotic (dead). Stem cell therapy may be helpful for that condition. Five years ago I had hypokinesis of the left ventricle wall and a low EF.
Avatar n tn my father had a heart attack in 1984, a pacemaker four years ago andnow is diagnosed with heart failure, is this normal?
Avatar f tn heart cells are probably trying to take up for the loss. However, not being the natural pacemaker center, these cells fire at inappropriate times causing what you are feeling as palps. As for what to do, I can only tell you what I would do. I would get the thing fixed or replaced ASAP.
Avatar n tn Hello, my father (early 60s) is on an ICD. His cardiologist wants to make the heart completely dependent upon the pacemaker, as the medicines my father is on aren't working. Unfortunately, I was unable to sit in on the meeting between my father and the cardiologist. My question to you is this - do you know the name of the procedure that would fully sever the nerves which incite the heart to beat?
Avatar f tn My daughter was diagnosed with a variety of heart problem when she was two months old. She currently has a pacemaker which she only uses when her heart rate goes above 115 bpm. When she has surgery 7 years ago the surgeon lost a surgical needle in the center (av node) area of her heart. Could the needle be the reason she is having heart block? She is ten now.
Avatar n tn from that blood draw my own stem cells were replicated. 23 Million Stem Cells were injected into my heart muscle and vascular system - via an angiogram. 80% of those 23 million were tagged for my heart. I will be glad to put you in touch with the Heart Clinic, in Florida, that I used. The procedure is not covered by insurance - again because of lack of FDA approval. Testing is being done in the U.S. in Chicago and Texas - might be elsewhere that's the 2 I know.
Avatar n tn Many cardiac muscle cells can contract spontaneously, but the cells in the Pacemaker region are, during fetal development, the fastest-beating ones, and the fastest ones normally dominate the whole show. However, many of us have independent-minded cardiac cells that can trigger a contraction (a PVC) if they get the opportunity, and opportunity arises when the Pacemaker's rate slows down--as happens when you're cooling off after exercise, or when you're getting sleepy at bedtime.
Avatar f tn PVCs and PACs occur when heart cells other than the typical pacemaker cells generate an electrical impulse and then a muscle contraction and heart beat. These may occur rarely or in some cases very frequently. Similarly, some people aren't aware of these while other people feel very symptomatic with them.
Avatar n tn Please can someone explain why a patient with a pacemaker kept her paced rhythm of 70 bpm with a fever 39.3 to 40 degrees C? I thought pacemakers could vary the rate to meet metabolic requirements. Thank you.
Avatar f tn patient is dibetic since 35 years and he has pacemaker from last four years.he had his angiography 4 years back then he had been diagnosed as mild LAD disease and his ejection flow was 40% that time, but he had no treatment but from last three months when he started having dyspnoe he consulted an MD medicine who did his ECHO and found that he has LALV dilated, LVEF 27.8%, LALV clot absent and told the patient that he is having global hipokinesia.
Avatar n tn MY DAD-87-HAS BEEN ON COUMADIN FOR A VERY LONG TIME AND RECENTLY HAD A PACE MAKER PUT IN-THEY HAVE HOWEVER CONTINUED HIM ON THE COUMADIN-HE RECENTLY GOT A HORRIBLE BLADDER INFECTION AND PASSED BLOD CLOTS, ETC. AND WE URGED HIM TO GO IN AND SEE THE SPECIALIST WHO SAID THIS WAS FROM THE COUMADIN. HE IS ALSOLSUFFERING A RASH ON HIS LEGS AND FEET AND SHE SAID THAT WAS ALSO FROM THE COUMADIN AND TOOK HIM OFF IT COMPLETELY. SAID HE DIDN'T NEED IT ANYHOW SINCE HE HAD THE PACEMAKER PUT IN.
280299 tn?1216855676 s are caused by non pacemaker cells that take on the roll of the pacer cells and send out errant electrical signals causing these arrhythmias. Unfortunately, SVT is usually unifocal (one particular section of the heart muscle is the section trying to take over the job of the natural pacemaker) and PVC's are often multifocal (lots of different little rogue cells causing trouble).
Avatar m tn I have had five surgeries, a pacemaker for apparent sick sinus syndrome, pacemaker syndrome which caused an apparent heart attack, three ablations that have wiped out 60 - 70% of my heart cells, pacs, pvcs, blood clots, SVTAC, afib, etc. No meds. work and my blood pressure also goes up and down with incredible fluctuation. Stress exacerbates my symptoms which are all (ears ringing, muscles twitching, dizziness, fatigue, sharp chest pains/againa, etc).
401554 tn?1270213756 Mainly, you need to talk to your doctor about this. Herbs and supplements are not regulated by the FDA and, given the recent news that some things that ARE regulated by the FDA aren't so well regulated, I'm always nervous about completely UNREGULATED products. I took Norpace for awhile. It is a heavy duty antiarhytmetic that suppresses the sodium and potassium channels causing the pacemaker cells to fire more "regularly.
Avatar n tn As a heart patient I think Coreg did indeed revive the heart stunned heart cells. Dead cells are just dead, but some of the cells can be revived, I was told. I weigh 85 pounds more than you and know that drug doses are given by body weight in many cases. I'm a big believer in quality of life as opposed to just staying alive, so know your struggle, I had it for several months. Easy for me to say, but I'd stay the course until you just can't endure the fatigue.