What are the hemodynamic responses to transesophageal atrial pacing?
Cardio Command - Frequently Asked QuestionsWhile TAP is predominantly a chronotropic therapy, heart rate acceleration during pacing also produces elevated cardiac output and blood pressure. The 6 tables below summarize hemodynamic responses to TAP for treatment of intraoperative bradycardia: For anti-tachycardia pacing, what rates (beats/min) or cycle lengths (CL, msec) are effective for cardioversion of supraventricular tachycardia (SVT) or atrial flutter? (Note: CL = 60,000/pacing rate.
Related QuestionsHow does transesophageal atrial pacing compare with alternative therapies?
Cardio Command - Frequently Asked QuestionsTAP vs. external transcutaneous/transchest pacing. Esophageal pacing is administered via the left atrium while transthoracic pacing is generally accomplished via stimulation of the ventricles. Atrial pacing is contra-indicated in patients with complete AV heart block. In patients with a functioning AV node, atrial pacing provides greater hemodynamic benefits compared to ventricular pacing (Topol et al). TAP is achieved with lower current (10-20 mA vs.
Related QuestionsCan transesophageal atrial pacing cause mucosal injury to the esophagus?
Cardio Command - Frequently Asked QuestionsThere are no cases published in the medical literature or reported to CardioCommand, Inc. of esophageal injury associated with transesophageal atrial pacing. Nevertheless, it is advisable that patients not be paced for greater than 1 hour. CardioCommand Transesophageal Cardiac Stimulators are voltage limited at 80V, which restricts output energy to a maximum of .032 Joules/pulse.
Related QuestionsHow should the electrodes be positioned in the esophagus for atrial pacing?
Cardio Command - Frequently Asked QuestionsThreshold current for successful "capture" varies with the distance between the esophageal electrodes and atrial myocardium (typically 5-12 mm). Optimal depth of catheter insertion can be estimated with a formula based upon patient's height or by maximizing the P-wave of the esophageal ECG. (See Positioning Electrodes) .
Related QuestionsWhat stimulus current is needed for atrial pacing from the esophagus?
Cardio Command - Frequently Asked QuestionsThe threshold current for atrial pacing varies with positioning of esophageal electrodes and patient body size. With proper positioning (above), atrial pacing is achieved with currents between 5-25 mA (Roth et al, Atlee et al, Benson et al, Buchanan et al).
Related QuestionsWhat is a transesophageal echo or TEE?
EchoTech Associates, Inc. - Frequently Asked QuestionsA transesophageal echocardiogram or TEE is similar to a TTE except the transducer is located on the end of a 100cm flexible scope, called a TEE probe. The TEE probe is placed in the esophagus via the mouth. The heart lies directly over the esophagus and the TEE examination allows for unobstructed images of the heart. A TEE examination is used when ribs and air in the lungs limit the information available from a TTE.
Related QuestionsWhat’s pacing and why do I have it?
ZAP•FAQAlmost all implantable cardioverter-defibrillators have built in circuitry to pace the heart, in addition to familiar "zapping" function to correct V-Tach or V-Fib, when the heart beats too fast. The pacing function starts if the heart beats too slowly. That happens to many of us, especially when we sleep, because some of the anti-arrhythmic medicines we take do slow down the heart beat.
Related QuestionsWhat factors improve the rate of successful transesophageal cardioversion?
Cardio Command - Frequently Asked QuestionsPre-administration of antiarrhythmia drug (e.g. propafenone often prolongs flutter CL) (Doni et al, Rhodes et al, D'Este et al, Matiouchine et al, Potapenko et al).
Related QuestionsWhat are the dangers of Atrial Fibrillation?
Frequently asked QuestionsWith proper attention, AF is not generally a life-threatening condition. But patients with Atrial Fibrillation do have a reduced cardiac output and are faced with an increased risk of developing bloodclots (thrombus). Blood in the atria may pool and clot. If a clot breaks loose and advances to the brain, a stroke can result. Short episodes of Atrial Fibrillation don't cause any injury to the heart in general.
Related QuestionsWhat is atrial fibrillation?
FAQS, Cardiology Physicians, PAAtrial fibrillation (A fib) is one of the most common heart rhythm disorders, affecting more than two million people in the United States. In A fib, the heart beats rapidly and irregularly. Although not directly life threatening, A fib can cause palpitations, other rhythm problems, chronic fatigue, shortness of breath, chest pain, dizziness and stroke. The chance of a stroke is increased five-fold in patients with A fib.
Related QuestionsAtrial Fibrillation - Overview - MSN Health & Fitness - ...Atrial fibrillation (say "A-tree-uhl fih-bruh-LAY-shun") is an irregular heart rhythm (arrhythmia) that starts in the upper parts (atria) of the heart. Normally, the heart beats in a strong, steady rhythm. In atrial fibrillation, a problem with the heart's electrical system causes the atria to quiver, or fibrillate. The quivering upsets the normal rhythm between the atria and the lower parts (ventricles) of the heart. The lower parts may beat fast and without a regular rhythm.Related Questions
How is it determined where to make the atrial incisions?
Maze FAQ [from the Atrial Fibrillation Page]During the research and development phase of the Maze procedure, a sophisticated, computerized mapping system was devised and patients with AF were studied extensively. Once the characteristics of AF were better understood, it became clear that AF is less chaotic than was once believed. In fact, consistent areas in both atria where atrial fibrillation originates were identified in the patient population that was studied.
Related QuestionsWhy am I not getting very many/any responses?
STD, Herpes, HPV, HIV/AIDS, HPV dating, STD dating, Herpes d...Don't just wait for someone to respond to your profiles. Start initiating as many winks or emails as possible. When contacting other members. remember to talk more about yourself and ask questions. That gives your potential match even more incentive to write back. Make sure to login to your account frequently. this will enable your profile to be higher up in the search results. On the more technical side. many people have more than one email address.
Related QuestionsAre there hemodynamic changes during the use of the AIRTRAQ?
AirtraqInitial studies have shown little to no changes in hemodynamics during the intubation procedure. It has also been demonstrated in a controlled study that Tracheal intubation with the Airtraq® resulted in less alterations in heart rate when compared to Direct Laryngoscopy.
Related QuestionsIs pacing allowed?
Trail Run EventsRunners may be legally paced by another runner, who is entered in the race, who is wearing a race bib, who does not enter the course at any point other than the start line, who does not leave the course at any point to re-enter the course at another point. All other pacing constitutes illegal pacing and will result in disqualification of the runner being paced. Pacing of runners via bicycle is forbidden. Pacing rules will be strictly enforced.
Related QuestionsHow can I get more responses?
Two MuslimsThe quickest way to get more responses to your profile is by adding a photo. A photo will give your profile a human face and will help attract the right people to you. If you already have a photo in your profile you should ensure that your profile is complete and that you have taken the time to write something unique in your narratives. If you are having trouble writing, you should read the expert advice included here in the "Your Profile" section.
Related QuestionsHow does Atrial Fibrillation affect ICG technology?
CardioDynamics Customer & Tech Service InfoICG technology looks at the relationship between the mechanical activity (the ICG waveform) and the electrical activity (the ECG waveform) in order to determine the stroke volume on a beat-by-beat basis. For an ICG beat to be determined valid, certain proprietary acceptance criteria are applied. A-fib is a condition that often causes irregular beat-to-beat electrical and mechanical activity.
Related QuestionsExcept for Atrial Fibrillation, What Are the Cardiac Sources of Stroke?
FAQ's Prevention in Atrial Fibrillation and Other Cardiac So...Acute myocardial infarction: Stroke occurs as a complication in 2-4% of patients with myocardial infarction (MI). Stroke seems to be more common after an anterior infarct. Embolization is most common within the first 3-4 months, with the highest risk in the first month. Thus, it is important to exclude acute MI in all patients who present with stroke and to recall that more than 20% of nonfatal MI are silent.
Related QuestionsWhat Are the Rationales for Oral Anticoagulants in Patients with Atrial Fibrillation?
FAQ's Prevention in Atrial Fibrillation and Other Cardiac So...Atrial fibrillation (AF) may be paroxysmal or chronic and is found in about 0.4% of the adult population. The prevalence of AF increases with age and is detected in about 15% of normal people over 75 years. Globally, AF increases the relative risk of stroke by six times and is associated with an absolute risk of approximately 5-8% per year.
Related QuestionsWhat Is the Role of Echocardiography in the Management of Patients with Atrial Fibrillation?
FAQ's Prevention in Atrial Fibrillation and Other Cardiac So...A number of echocardiographic features have been proposed as predictors of thromboembolism in patients with atrial fibrillation. Features shown by transthoracic echocardiography (TTE) or transesophageal echocardiography (TEE) are predictive of this increased risk: left atrial enlargement, spontaneous echo contrast in left atri-um, left-ventricular dysfunction, increased left-ventricular mass, and mitral annular calcification.
Related QuestionsHow is atrial fibrillation diagnosed?
Atrial Fibrillation - Overview - MSN Health & Fitness - ...The doctor will ask questions about your past health, do a physical exam, and order tests. The best way to find out if you have atrial fibrillation is to have an electrocardiogram (EKG or ECG). An EKG is a test that checks for problems with the heart's electrical activity. You might also have lab tests, a chest X-ray, and an echocardiogram. An echocardiogram can show how well your heart is pumping and whether your heart valves are damaged.
Related QuestionsWhat can you do at home for atrial fibrillation?
Atrial Fibrillation - Overview - MSN Health & Fitness - ...Atrial fibrillation is often the result of heart disease or damage. So making changes that improve the condition of your heart may also improve your overall health. Don't smoke. Avoid secondhand smoke, too. Quitting smoking can quickly reduce your risk of stroke and heart attack. Eat a heart-healthy diet with plenty of fish, fruits, vegetables, beans, high-fiber grains and breads, and olive oil. Get regular exercise on most, preferably all, days of the week.
Related QuestionsWho gets atrial fibrillation?
Atrial Fibrillation - Overview - MSN Health & Fitness - ...This information does not replace the advice of a doctor. Healthwise disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. © 1995-2007 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
Related QuestionsWhat happens if I go back into atrial fibrillation shortly after the surgery?
OSFSA Regional Heart InstituteI try to make it known to every patient that it is a possibility and potentially even a likelihood that patients will have bouts of atrial fibrillation immediately following the surgery and even for the first few weeks. The status of the atrial fibrillation prior to surgery can contribute to the likelihood of going back into atrial fibrillation following the surgery.
Related QuestionsHow many people have Atrial Fibrillation?
ArticlesApproximately 2.2 million Americans suffer from Atrial Fibrillation (AF). 1 Physicians diagnose an average of 160,000 new cases each year.
Related QuestionsWhat is the cause of Atrial Fibrillation?
ArticlesAlthough research indicates contributing factors to the disease, there is no single known cause of AF. In some people, it is thought to be caused by other conditions, such as overactive thyroid, heart attack, hypertension, and certain kinds of heart failure; in others the cause cannot be identified.
Related QuestionsHave HeartMath techniques been shown to help people with atrial fibrillation?
emWave PC Stress Relief System FAQ'sYes, many people with atrial fibrillation have benefited substantially from the HeartMath techniques. A large hospital in Orange County, California, conducted an internal study with a random sampling of 75 patients with atrial fibrillation. Many of these patients had severe conditions and were on aggressive antiarrhythmic and antihypertensive medication regimens; a large number were on "last resort" medications with extremely toxic side effects.
Related QuestionsQuestion: What is Atrial Fibrillation and how does it affect ICG technology?
CardioDynamics Customer & Tech Service InfoAnswer: Atrial fibrillation is when the normal rhythmical contractions of the cardiac atria are replaced by rapid irregular twitching of the muscular wall, which causes the ventricles to respond irregularly to the dysrhythmic bombardment from the atria1 .
Related QuestionsWhat Are the Risk Factors for Stroke among People with Nonrheumatic Atrial Fibrillation?
FAQ's Prevention in Atrial Fibrillation and Other Cardiac So...In patients with atrial fibrillation, the following situations are considered as risk factors for stroke: Figures given by the multivariate analysis of predictors of stroke in control patients enrolled in randomized controlled trials on warfarin in the primary prevention of stroke in patients with atria] fibrillation.
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