Treatment FAQ

which treatment for cardiac arrhythmias uses energy delivered by a thin intravascular tube?

by Prof. Philip Kreiger Published 3 years ago Updated 2 years ago
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An arrhythmia—an abnormal heart rhythm, or irregular heartbeat—in a child can be treated in many cases with a technique called a catheter ablation. During a catheter ablation, a high-frequency electrical energy is delivered through a catheter (a small, thin tube) to a small area inside the heart that causes the abnormal heart rhythm.

Full Answer

Which procedure involves insertion of a device to hold open vessel and is usually performed after vascular surgery?

Angioplasty uses a balloon-tipped catheter to open a blocked blood vessel and improve blood flow.

Which endovascular procedure reopens narrow blood vessels?

Endovascular specialists at UT Southwestern Medical Center can use a minimally invasive angioplasty procedure to open a narrowed vein or artery. The procedure involves inserting a small balloon through a catheter, which is inflated at the site of the narrowing.

What procedure involves rerouting blood flow away from dysfunctional blood vessels to healthier blood vessels?

CABG uses blood vessels from another part of the body and connects them to blood vessels above and below the narrowed artery, bypassing the narrowed or blocked coronary arteries.Mar 30, 2020

Which blood test measures the presence and troponin I troponin I and creatine kinase CK MB Group of answer choices?

A serum myoglobin test may also be taken with tests measuring troponin, creatine kinase (CK), and creatine kinase-MB (CK-MB). Negative results can be used to rule out a heart attack. Positive results don't confirm that a heart attack has happened, though.

How is angioplasty done?

1:152:54Angioplasty Procedure Animation Video. - YouTubeYouTubeStart of suggested clipEnd of suggested clipOnce the blockage is identified a flexible guard wire is inserted. Into the artery vessel followedMoreOnce the blockage is identified a flexible guard wire is inserted. Into the artery vessel followed by a balloon tip catheter over this wire. The position itself at the site of the blockage.

When is angioplasty done?

Angioplasty can improve symptoms of blocked arteries, such as chest pain and shortness of breath. Angioplasty is also often used during a heart attack to quickly open a blocked artery and reduce the amount of damage to the heart.Oct 8, 2021

How is CABG done?

The procedure involves taking a healthy blood vessel from your leg, arm or chest and connecting it below and above the blocked arteries in your heart. With a new pathway, blood flow to the heart muscle improves.Nov 3, 2020

How is triple vessel disease treated?

Coronary artery bypass graft (CABG) is the treatment of choice in patients of diabetes with triple vessel disease (TVD).

Which procedure involves passage of a balloon catheter through an occluded coronary vessel?

Overview. Balloon angioplasty is a procedure used to open narrowed or blocked arteries. It uses a balloon attached to a catheter that's inserted into an artery. At the place where deposits of plaque have closed off or narrowed the channel for blood flow, the balloon is inflated.Jun 25, 2020

What is CK test used for?

What is it used for? A CK test is most often used to diagnose and monitor muscular injuries and diseases. These diseases include: Muscular dystrophy, a rare inherited disease that causes weakness, breakdown, and loss of function of skeletal muscles.Dec 17, 2020

What is serum CK-MB?

Creatine kinase-MB (CK-MB) is a form of an enzyme found primarily in heart muscle cells. This test measures CK-MB in the blood. CK-MB is one of three forms (isoenzymes) of the enzyme creatine kinase (CK).Nov 9, 2021

How is a troponin test done?

Troponin levels are measured with a standard blood test. A healthcare professional will take a sample of your blood from a vein in your arm. You can expect mild pain and maybe light bruising. After taking the blood sample, the healthcare professional will assess your troponin levels to diagnose a heart attack.

What is RF ablation?

Cardiac Arrhythmia, a condition of abnormal activation and conduction of electrical impulses in the heart is observed in a large proportion of the world population. Radio frequency (RF) ablation catheters have revolutionized the treatment of cardiac arrhythmias. Over the years, researchers have been extensively working towards developing a more promising catheter technology that ensures definitive treatment. Since RF energy is based on the principle of resistive heating, to optimize effective lesion formation, a catheter to adequately sense tissue contact force becomes vital. The review focuses on state-of-the-art advancement in force sensors, design specification and their need for interfacing with cardiac catheters. Minimally invasive medical procedures for cardiac ablation followed by various controlling methods used for providing quality lesion have been overviewed. Several design prototypes and variants of force sensors that can potentially be integrated with ablation catheters are reviewed with their sensing principles and implementation.

What is the contact force of a cardiac ablation?

In cardiac ablation procedures, the contact force between the cardiac tissue and the catheter tip is significant for a good quality ablation. This is clear from the procedural details discussed and the tediousness of the current process. A small error in the contact force measurement can result in several complications such as inefficient and insufficient ablation; also, it can have high chances of recurrence. Conversely, the higher force could cause injury to the tissue, with a high risk of steam pop and cardiac perforation. These complications can be obviated if contact force is measured with higher accuracy. The ability to measure force while the catheter is guided into its target location during the treatment is also crucial. Thus, it is clear that force sensing is required at all steps from catheter entry, reaching the targeted area, ablation and then retrieval. The main aspect is the site measurement. For this purpose, piezoresistive, optical, piezoelectric, and magnetic methods have been used. The advantages and shortcomings of these methods have been discussed. The forces acting on the catheter while it is guided are studied in detail by incorporating the pressure sensor at the side wall of the catheters and by measuring the current drawn by the robot actuators. There are substantial avenues for improvement and innovation in this niche area. Integrating haptic feedback, tactile sensor (for precise detection of a wide range of local force), accurate prediction of steam pops, and assessing transmurality can potentially result in a smart catheter for ablation procedures.

What is light intensity modulation?

Light intensity modulation is the most commonly preferred optical force sensing modality in cardiac catheterization. This is due to the insensitivity of sensor output to either the temperature or electromagnetic field or radio frequency power used for heart ablation [25]. Moreover, it is simple, inexpensive and readily adapted method for several geometries. This configuration typically uses a minimum of a single pair of straight transmitting and receiving optical fiber, such that the output is a measure of displacement. This is because the force acting on the catheter tip causes the mirror surface to shift relative to the input force. This leads to a change in the reflected light intensity that is transmitted from an emitter optical fiber. In the c reflective measurement, the intensity of the reflected light is affected by the distance between the optical fiber and the mirror surface [54]. In transmissive-based intensity measurement, a shift in the focus location is due to the translational displacement of encoder lens [77]. Fig. 4 (a) and Fig. 4 (b) show the reflective and transmissive type light measurements [78].

Is FBG sensor sensitivity good?

By the virtue of miniaturisation of the sensor, FBG technology provides a good sensitivity with a better resolution compared to the light-intensity modulated technology. However, the complexity and the need of expensive phase masks surge the cost of sensing system compared to light intensity modulation [ 25, 103 ]. Furthermore, it has limited bandwidth and cross-sensitivity to the temperature which leads to errors in the strain measurement. Hence, it is required to compensate for temperature changes for accurate measurement of strain [ 25, 103 ]. In addition, the use of optical source and spectral analysis equipment increases the overall cost of the system [ 25, 27, 103, 104 ]. Lastly, for the strains smaller than 100 µ these sensors pose challenges with practical implementation [ 25, 103 ].

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