Essay on What is Cardiac Catheterization?

Essay on What is Cardiac Catheterization?

Length: 1136 words (3.2 double-spaced pages)

Rating: Better Essays

Open Document

Essay Preview

Cardiac catheterization is most commonly used to collect blood samples from the heart, to measure pressure and blood flow in the heart’s chambers and in the large arteries around the heart, to measure the oxygen content in different parts of the heart, to examine the arteries of the heart and to perform a biopsy on the heart muscle. The procedure is used on patients to diagnose or evaluate cardiac amyloidosis, cardiomyopathy, coronary artery disease, congenital heart defects, pulmonary hypertension and problems with the heart valves.
Cardiac Catheters that are commercially available contain metal wire braiding technology that adjusts their mechanical properties to favor safer, easier and more efficient operations of the catheters. However, these catheters are not meant to be anywhere near a strong magnetic field which is encountered in MRI machines. Thus, making it difficult for doctors to image the position of the catheter while using it on a patient. Current fluoroscopically guided ablation catheters have a poor soft-tissue contrast and the process of using them exposes the patient and the surgical team to a high dose of X-ray radiation. When these ferromagnetic catheters are introduced in an MRI system, they disrupt the images as well as extensively increase in temperature. An MRI compatible catheter is needed to avoid these problems without compromising the required mechanical properties.
The MR catheter in focus employs a Copper-Nitinol braided polymer tube as the deflectable tip and a Nylon braided tube as the shaft. Carbon-fiber control rods are used to provide additional performance enhancements. The catheter is steered with a knob which is attached to a steering piston at the catheter handle. ...


... middle of paper ...


...wire, a Copper-Nitinol braided polymer tube is used instead of stainless steel which is the material used for many non-MRI compatible catheters. An only Nitinol braided tip does not qualify for being strong and rigid enough, although it does not affect the temperature of the Catheter in a magnetic field nor does it distort the images produced by an MRI machine, which is why copper was used with it. Parts of the tip was made of small bands of Nitinol, to provide it for a kink-free tip. Both, braided tubing and the integrated carbon fiber control rod contribute to the shaft’s flexural and axial rigidity.
The mechanical properties of the non-ferromagnetic materials of the cardiac catheter (strength and heat conductivity) and their electrical properties (non-ferromagnetic conductance) contribute towards being important technical aspects of it. However, it is

Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

Check your paper »

Medical Case Study: Cardiac Catheterization Essay

- Client Profile: Lane Bronson is a 55 year old male with a history of angina, hypertension, Type 2 diabetes, COPD, and sleep apnea. He comes to the physican’s office complaining of worsening shortness of breath. His skin tone is grey, and his angina is worsening. Previously stable, he now does not get relief from rest or nitroglycerin. The physician called 911 and had Mr. Bronson directly admitted to the hospital. Questions: 1. What are the treatment priorities of the registered nurse upon admission....   [tags: Nursing Essays]

Free Essays
2907 words (8.3 pages)

Cardiac Catheterization Should have a Liberalized Preoperative Fasting Protocol

- In medicine, there are innumerous amounts of tests and procedures performed every day. These procedures irrespective of how invasive or noninvasive they are require patients to be ‘Nil per Oral’ (NPO) for several hours prior to the procedure. Traditionally fasting preoperatively has been mandatory to prevent any risks related to aspiration during anesthesia. When anesthesia is induced in patients, it inhibits the patients cough and swallow reflex posing a higher risk for the patient to aspirate any gastric contents....   [tags: Nil per Oral (NPO)]

Better Essays
1662 words (4.7 pages)

Essay about Heart Catheterization And Kidneys Research

- Heart Catheterization & Kidneys Research As a nurse, there are literally hundreds to thousands of articles available on each and every subject we could ever want to research. There are blogs, which are opinion based, social media, also entirely opinion based, and then there is evidence-based research articles and publications. Among evidence-based publications are journal articles, policies, and essays written in journals. Many nurses actually try to avoid new evidence-based practices and “…continue to promote outdated nursing practices that have been proven ineffective, unnecessary, and in some cases, downright dangerous” (Miller, Hayes, & Carey, 2015, p....   [tags: Research, Scientific method, Renal failure]

Better Essays
1954 words (5.6 pages)

Essay on Post Heart Catheterization Treatment

- ... This is a clear device which is connected to the post-catheter patient with the bulb part just above the affected artery. A pump similar to a blood pressure cuff bulb is used to put air into the device and thus cause pressure to be at the appropriate area to aide in hemostasis. The first thing a nurse should do for a patient that has come under their care from the Cath. Lab when the sheath has already been pulled will be to monitor the patient every 15 – 30 minutes for the first two hours and then hourly for two hours....   [tags: hemostasis, smoking, education]

Better Essays
948 words (2.7 pages)

Describe The Electrical Conduction System Of The Heart Essay

- 3. Describe the electrical conduction system of the heart. The normal electrical conduction in the heart allows the impetus that is engendered by the sinoatrial node (SA node) of the heart to be propagated to, and stimulate, the cardiac muscle (myocardium). The myocardium contracts after stimulation. It is the set up, rhythmic stimulation of the myocardium during the cardiac cycle that allows efficient contraction of the pump, thereby permitting blood to be pumped throughout the torso. 4. State three reasons why patients may need an electrocardiogram (ECG)....   [tags: Heart, Cardiology, Cardiac electrophysiology]

Better Essays
1405 words (4 pages)

Essay on Sudden Cardiac Arrest in Athletes

- Last March, an undefeated basketball squad faced a tragic loss, and unfortunately it was not the game. An undefeated season was on the line for the Fennvile Blackhawks, and the whole town was in attendance. The game went into overtime and Wes Leonard was ready for it. Seconds left in overtime, the score was tied again. It was the last play of the game, and Wes Leonard drove to the basket for a lay up, putting them up by two. Time expired and fans rushed the court looking for the hero that made that game winning basket....   [tags: Health, Diseases, Cardiac Arrest]

Better Essays
2233 words (6.4 pages)

Essay on The Cardiac Cycle Of The Heart

- State: The cardiac cycle is composed of five stages which each trigger the relaxation or contraction of the atria or ventricles and direction of blood flow. Elaborate: The cardiac cycle of the heart is divided into diastole and systole stages. Diastole refers to the period of relaxation experienced by the atria and ventricles. Systole is the contraction of the atria and ventricles. The pattern of blood flow starts in the left atrium to right atrium then into the left ventricle and right ventricle....   [tags: Heart, Blood, Ventricle, Cardiac anatomy]

Better Essays
917 words (2.6 pages)

Essay on Heart Attacks And Cardiac Arrest

- You can feel your heart pulsating every time you place your palm on your chest, but do you have any idea what really is going on in there. While the heart is no bigger than the size of your hand making a loose fist, the heart has a vast responsibility and dependability to keep blood flow in order to feed and support the other organs and tissues. Heart attacks and cardiac arrest are just two of plethora conditions that can generate a malfunction within the professions of the heart. These two conditions can be fatal, but both affect the most vital organ of the human body....   [tags: Heart, Myocardial infarction, Cardiac arrest]

Better Essays
1601 words (4.6 pages)

Generating and Replacing Cardiac Muscle Essay

- Is the differentiation of Cardiac stem cells, (CSC’s) into cardiac myocytes (heart tissue), the best way to regenerate and replace cardiac muscle. Cardiac stem cells z In 2012, the Cochrane Collaboration; an organisation that analyses medical studies, analysed 33 trials which included 1,765 patients concerning stem cells that were injected into their hearts in an attempt to improve the heart’s pumping ability. On average the injected stem cells only increased the heart’s pumping ability by 3-4 percent; the stem cells did not prevent any further heart attacks or produce any new blood vessels....   [tags: cardiac stem cells, myocyte, homeostatic]

Better Essays
930 words (2.7 pages)

The Basic Physiology Of Cardiac Output And Its Measurement Essay

- egin{equation} DO_{2} = CO imes CaO_{2} end{equation}\ where\ CO denotes cardiac output and \ $ CaO_{2} $ denotes oxygen content of arterial blood.\ The oxygen content can be calculated by the formula:\ egin{equation} CaO_{2} = (1.36 imes Hb imes SaO_{2} )+ ( 0.0031 imes PaO_{2}) end{equation}\ Where \ Hb denotes haemoglobin,\ $ SaO_{2} $ denotes saturations from pulse oximetry,\ $ PaO_{2} $ denotes arterial oxygen tension and\ A major determinant of oxygen delivery, as noted earlier, is the cardiac output....   [tags: Blood, Heart, Cardiology, Cardiac output]

Better Essays
1958 words (5.6 pages)