pacemaker cells resting potential

My research has led me to discover that hiv can only actively reproduce inside activated t cells and not resting. Inside resting cells it can lay dormant until that cell becomes active, thereby facilitating it's reproduction. The confusing part is, 95% of our t cells are in a restng state. If someone is newly infected and the virus enters their blood stream, if the few viruses that enter only infects resting cells then how can it replicate immediately?

I consider a resting HR of 26 to be potential serious... but if you have no symptoms such as dizziness or breathless, it may not matter what I "consider" it. Have you discussed with your cardiologist? Or your EP?

Recently a resting EKG got the doctors to tell me I had a stage 2 heart block and should get a pacemaker right away, which I declined. Today at the end of an uphill portion of my walk I carefully checked my pulse and found that my heart was giving me a 90 beat rate. This indicates that my heart is responding to my needs. It is not staying at a resting 33 beats per minute with no signal boosting the rate up. As long as this goes this way I don't see the need for a pacemaker.

” They claim that the ability to transduce nondividing cells, such as resting CD4+ T cells, using lentiviral constructs and achieve long-term Cas9 transgene expression supports the feasibility of using the system to eradicate cells that act as latent reservoirs of HIV-1. They acknowledge that further research will be needed to translate their early in vitro work into in vivo preclinical models and human patients.

Cardio called regarding event monitor that I've had on for 2 weeks. He says it has shown: PVCs, PACs, IST, ST, SVT, AF and Wide Complex tachycardia. He suggested an appointment with an EP, which he is setting up. I asked if anything he saw could kill me and he seemed to indicate not. I am really concerned, especially about the wide complex thing. How bad does this sound?

My dual lead pacemaker is set at 70 ppm, some people with pacemakers have the pacemaker rate set below their normal heart Resting rate Ex. normal rate 50 ppm Pacemaker set at 45 ppm. What determines the optimun pulse rate for the pacemaker? My Doctor is willing to set it at any rrrrrrrrrrate I choose. I am 86 years old in good physical shape,play tennis do nautilis and swim several times a week. Do get puffin when extended on tennis, or on a tread mill at higher than 3.5 miles per hour.

I have a resting heart rate of 36-38 and am asymptomatic. I don't pass out or get dizzy after exercise or any time. I am 73 years old and run 30 miles a week and run in 5K and 10K races. My cardiologist wants to put a pacemaker in because of my low heart rate. I need some advice!

m having trouble finding information on potential vaginal cancerous cells. According to the classification she gave, it would seem as if she already has cancer, but she insists she doesn't. Only that it could be come cancer. If that makes any sense. Sorry for the lack of information.

the only thing there is her heart also slows way down too hence why they set her pacemaker to not go any lower than 60 bpm. She has a normal resting rate of 80-85 bpm but it still frequently revs up to around 100-105 while sitting. Her pacemaker has gone off 3 times scince she had it implanted but always on low bpm's because her upper limits arent set and she hasnt had any black out spells with her heart reving up.

A fast resting heartbeat (>100 in adults) is called tachycardia. There can be a lot of causes for it. If it needs to be treated, there are several possibilities for solving it (medications, cardiac ablation, ICD, ....) A pacemaker is used for speeding up the heart rate, so in bradycardia situations (too slow heart rate). This is not gonna help you. An implantable defibrillator (ICD) can in some situations help against a too fast heartbeat.

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.

I suffer from permanent AFib, but I have no experience with a pacemaker. That said, I don't think there is anything a pacemaker can do about AFib. If you palpitations are irregular heart beats, and a heart rate that is higher than you would like, say over 100 bpm, it could be due some of to the AFib signals getting through. I take both a beta blocker and calcium channel blocker to reduce the number of extra heart beats I get from the AFib.

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.

s in recovery but there were no triplets (had that 2 stress tests ago and test was stopped) Resting blood pressure was 102/70 and peak was 132/63. He is on 20mg nadolol in a.m. and 10mg in p.m. and also takes 5mg of singulair in p.m. He has not had a episode of syncope. We are considering implanting the Sleuth AT cardiac monitoring system and wonder what your feelings are on this device and has any CHOP doctor preformed this surgery. Also, have you heard of the experimental drug know as JTV519.

My wife had a pacemaker installed last April to control Atrail Fibrillation. She also had an abration process to make her pacemaker dependent. She has progressively had extreme fatigue to the point that she is not able to walk very far without resting, nor exercise at all. She has had banks of tests including blood, adrenal, nuclear stress test, etc., and all were in the "normal" range.

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.

The American Heart Association recommends a pacemaker when the resting HR is below 40, but as with anything there are mitigating factors. I agree that seeing a doctor is important, but let's not scare the hell out of people if we don't need to.

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).

I'm also curious as to why a pacemaker hasn't worked. A HR of 25 can cause anything from being unconscious to dizziness, altered mental status, shortness of breath, and so on. I have seen somebody have a HR in the 20's due to a 3rd degree block and they were in their early 80's and symptom free but they only had to sustain that rate for a couple of hours before receiving pacing. I've also seen the other end of the spectrum where the individual was unresponsive.

My resting heart beat is 27, and rises if I get up, drive or do any of the normal activity lists. I do sport and then my heart is normal and easily goes over 100 while I am excercising and comes down pretty fast to the thirties. This seems abnormal ? I feel healthy and well though am worried.

It was only a partial block until about 6 or 7 Years ago. When under the age of 16 my resting pulse was around 58 bpm. This rate slowly kept declining and for the past 2 years prior to surgery 30 bpm was normal for me . On August 18th of 2015, I had a pacemaker implanted at the age of 26. Before this I had the shortness of breath, light headed, dizzy, major lack of energy, always tired, terrible chest pains. After my implant surgery I still get chest pains but not s often now.

Hi Doctor, My bro aged 21 recently jus joined army force as regular, physical fit in average, not really stressful workout in camp as he's a military police. During 1 week ago, he went for full medical check up in camp & founded out by MO his HR is only 36/min. Immediately warded to hospital. 24hour EKG, worst result during resting was 26/min.

s while sleeping or resting. This causes him to have sever chest pain, shortness of breath. He has been admited to the hospital twice now and had test run. All the test show that his heart does not have any faulty valves or blockages. The last time he was admited to the hospital was July 1, 2008, he spent 5 days and was once again released with no answers. When he is up and active his heart rate stays in the 60's-80's.

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.

Pacemaker cells resting potential

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