• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
pulmonary circulation
pulmonary circulation

... Ebstein „Endocardial cushion defects“ Important for the development of AV region, lower part of atrial and upper part of ventricular septum Abnormal developent is responsible for cca 5% of congenital heart defects, in m. Down even in 50 % - some ASD, VSD, valvular abnormalities Ebstein – abnormal t ...
Congestive Heart Failure – When Stroke Volume Regulation Breaks
Congestive Heart Failure – When Stroke Volume Regulation Breaks

... (CHD): a condition in which the heart muscle receives an inadequate amount of blood due to obstruction of its blood supply. It is the leading cause of death in Canada each year. The principal causes of obstruction include atherosclerosis, coronary artery spasm, or a clot in a coronary artery. Risk f ...
Heart Failure: Heart Rhythm Problems
Heart Failure: Heart Rhythm Problems

... EKG to record your heart rhythm, usually over a 24-hour period. Or you may wear a device called an event recorder, which allows you to record your heart rhythm whenever you have symptoms. • Stress test, such as treadmill testing. A stress test compares your EKG while you rest to your EKG after your ...
Pediatric Congenital Heart Disease
Pediatric Congenital Heart Disease

... assessment is of a qualitative nature. The abnormal ventricular geometry associated with many structural heart defects further complicates this assessment. ...
Prosthetic valve thrombosis
Prosthetic valve thrombosis

... • Bioprosthetic Valve Failure - freedom from valve deterioration for the two most commonly used bioprosthesis valve ( Carpentier-Edward and Hancock ) is between 60% and 80% at 10 years and drops sharply to 45% at 14 years - Mitral valve  higher rate of failure ...
Patient with CHD for Non-cardiac Surgery Page 1 Steve Stayer, M.D.
Patient with CHD for Non-cardiac Surgery Page 1 Steve Stayer, M.D.

... significant congestive heart failure (CHF) or mitral regurgitation; beta blockers for Tetralogy of Fallot patients or those with atrial arrhythmias; amiodarone for patients with significant atrial or ventricular arrhythmias; and diuretics for patients with CHF. Digoxin is rarely used in the modern e ...
Early and mid-term outcomes of percutaneous mitral valve repair
Early and mid-term outcomes of percutaneous mitral valve repair

... Clinical and echocardiography follow-up was performed at discharge as well at one, three, six and 12 months after the procedure. Data concerning reintervention, cardiac re-hospitalisation and death were collected together with information about major cardiac and cerebrovascular events (MACCE). MACCE ...
basic echocardiography series
basic echocardiography series

... almost white with the myocardium and papillary muscles in a medium grey. The valves are slightly bright and fluid filled structures such as chambers and great vessels will appear black. ...
First heart sound
First heart sound

... the second sound is thus doubled. Pathological reduplication of the second sound can be due to delayed closure of the aortic valve in persons suffering from essential hypertension, or if the closure of the pulmonary valve is delayed at increased pressure in the lesser circulation (e.g. in mitral ste ...
Patent ductus arteriosus - Medical Ultrasonography
Patent ductus arteriosus - Medical Ultrasonography

... to the fact that after birth, the systemic circulation pressure is higher than the pulmonary one, a shunt inversion occurs, becoming a left-to-right shunt. Due to the high pressure gradient between the aorta and the pulmonary artery, ...
Patent Ductus Arteriosus
Patent Ductus Arteriosus

... shown on a monitor. In babies with PDA, an echo shows how big the opening is and how well the heart is functioning. ...
Geometrical multiscale model of an idealized left ventricle with fluid
Geometrical multiscale model of an idealized left ventricle with fluid

... flow have been proposed in the literature – we refer to [25] for a recent review. While these models do well in capturing the essential phenomena of the flow, the concentrated parameters therein often have unclear physiological meaning and need to be calibrated based on patient-specific measurements ...
How to read ECG - Simply Psychiatry
How to read ECG - Simply Psychiatry

... PR interval is measured from the start of the P wave to the beginning of the QRS complex. The normal PR interval is 0.12 to 0.2 seconds or 3-5 small squares Duration of QRS complex is normally 0.12 seconds or 3 small squares QT interval is the time between the onset of depolarization to repolarizati ...
HEART AND CIRCULATORY SYSTEM II
HEART AND CIRCULATORY SYSTEM II

... 2) Know the derivation of the great vessels. 3) Explain the structural and functional design of the fetal circulation. 4) Discuss origin of some well known cardiac malformations. REVIEW: (Figs. 7-1, 7-2) The single common atrium is incompletely divided into a right and left atrium. The superior vena ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

... Used In Places Of Contact With Blood. No Damage Should Be Given To Blood For Hemolysis And Clotting. It Should Have Low Power And Low Energy Consumption Due To Heating. A Major Part Of These Problems Regarded As An Important Risk For Vads Has Been Reduced With The Changes Provided In Pump Design Onl ...
Chapter 11 The Cardiovascular System
Chapter 11 The Cardiovascular System

...  Right and left side act as separate pumps  Four chambers  Atria  Receiving chambers  Right atrium  Left atrium ...
The Cardiovascular System
The Cardiovascular System

... tissue associated with the closing of the valves.  The first part of the heart sound (lubb) is heard during ventricular contraction when the valves between the Atrium & Ventricles closes.  The closing causes the blood to stop flowing or back up causing a sound almost like waves crashing on a beach ...
The Very Basic`s of Pacing
The Very Basic`s of Pacing

... beat, and therefore does not respond ...
Supraventricular Tachycardia
Supraventricular Tachycardia

... vascular system during exercise. It stress, the heart's bowel valves. movements, or even Ishelps a testanswer that measures to two general blood pressure sleeping. •Electrophysiological Study within questions: the heart 1) Is there and how occult much oxygen is a maps the used electrical isunderlyin ...
Chapter 20 Lecture Notes
Chapter 20 Lecture Notes

... Chamber size decreases → ↑ pressure → eject blood! Diastole = relaxation phase of a chamber! Chamber size increases → ↓ pressure → chamber filling! ...
Parent-Athlete Signature Form
Parent-Athlete Signature Form

... There are risks associated with continuing to practice or play after experiencing these symptoms. When the heart stops, so does the blood that flows to the brain and other vital organs. Death or permanent brain damage can occur in just a few minutes. Most people who experience SCA die from it. Publi ...
Left ventricular endocardial longitudinal and transverse - AJP
Left ventricular endocardial longitudinal and transverse - AJP

... Mitral valve closure. Contrary to the general opinion that the mitral valve closes at the very beginning of IVC, we found that it was still open at that moment. Our data show that the mitral valve is open during the first three-quarters of IVC. It closed at the beginning of the last quarter, confirm ...
Full sternotomy with limited skin incision for surgical treatment of
Full sternotomy with limited skin incision for surgical treatment of

... after an inframammary incision and paresthesia around the breast tissue have been documented.[6] Some other advantages of this approach are the use of intrathoracic cannulation along with the avoidance of the femoral artery and femoral vein cannulation. An ASD can be also accessed through a partial ...
biomaterials ent 311/4
biomaterials ent 311/4

... Most of the vascular graft are stiffer compared to the host artery. Development with more compliant grafts and in modifying the surface interaction of the graft with blood may result in reducing the problems with loss of patency. Recent advance is to engineered vascular graft from recipients own tis ...
Applications to Economics and Biology
Applications to Economics and Biology

...  Notice that the velocity (and hence the volume per unit time) increases toward the center of the blood vessel.  The approximation gets better as n increases. ...
< 1 ... 208 209 210 211 212 213 214 215 216 ... 495 >

Lutembacher's syndrome



Lutembacher's syndrome is a form of congenital heart disease. Lutembacher's syndrome was first described by a French cardiologist by the name of Rene' Lutembacher (1884–1968) of Paris, France in 1916. Lutembacher syndrome is a rare disease that affects one of the chambers of the heart as well as a valve of the heart. Lutembacher's syndrome is known to affect females more often than males. Lutembacher is an extremely rare disease. Lutembacher's can affect children or adults; the person can either be born with the disorder or develop it later in life.Lutembacher affects more specifically the atria of the heart and the mitral or biscupid valve. The disorder itself is known more specifically as both congenital atrial septal defect (ASD) and acquired mitral stenosis (MS). Congenital (at birth) atrial septal defect refers to a hole being in the septum or wall that separates the two atria; this condition is usually seen in fetuses and infants. Mitral stenosis refers to mitral valve leaflets (or valve flaps) sticking to each other making the opening for blood to pass from the atrium to the ventricles very small. With the valve being so small, blood has difficulty passing through the left atrium into the left ventricle. There are several types of septal defects that may occur with Lutembacher's syndrome: ASD Ostium Secundum or ASD (Primium); Ostium Secundum is the most prevalent.Lutembacher is caused indirectly as the result of heart damage or disorders and not something that is necessarily infectious. Lutembacher's syndrome is caused by either birth defects where the heart fails to close all holes in the walls between the atria or from an episode of rheumatic fever where damage is done to the heart valves such as the mitral valve and resultant in an opening of heart wall between atria. With Lutembacher's syndrome, a fetus or infant is usually seen to have a hole in their heart wall (interatrial) separating their right and left atria. Normally during fetal development, blood bypasses the lungs and is oxygenated from the placenta. Blood passes from the umbilical cord and flows into the left atrium through an opening called the foramen ovale; the formaen ovale is a hole between the two atria. Once a baby is born and the lungs begin to fill with air and the blood flow of the heart changes, a tissue flap (somewhat like a trap door) called the septum primium closes the foramen ovale or hole between the two atria and becomes part of the atrial wall. The failure of the hole between the two atria to close after birth leads to a disorder called ASD primium. The most common problems with an opening found in the heart with Lutembacher's syndrome is Ostium Secundum. Ostium Secundum is a hole that is found within the flap of tissue (septum primium) that will eventually close the hole between the two atria after birth. With either type of ASD, ASD will usually cause the blood flow from the right atrium to skip going to the right ventricle and instead flow to the left atrium. If mitral stenosis (the hardening of flap of tissue known as a valve which opens and closes between the left atrium and ventricle to control blood flow) is also present, blood will flow into the right atrium through the hole between the atria wall instead of flowing into the left ventricle and systemic circulation. Eventually this leads to other problems such as the right ventricle failing and a reduced blood flow to the left ventricle.In addition to the ASD, acquired MS can be present either from an episode of rheumatic fever (the mother has or had rheumatic fever during the pregnancy) or the child being born with the disorder (congenital MS). With the combination of both ASD and MS, the heart can be under severe strain as it tries to move blood throughout the heart and lungs. To correct Lutembacher's syndrome, surgery is often done. There are several types of surgeries depending on the cause of Lutembacher's syndrome(ASD Primium or ASD Ostium Secundum with Mitral Stenosis): Suturing (stitching) or placing a patch of tissue (similar to skin grafting) over the hole to completely close the opening Reconstructing of the mitral and tricuspid valve while patching any holes in the heart Device closure of ASD (e.g. Amplatzer umbrella or CardioSEAL to seal the hole Percutaneous transcatheter therapy Transcatheter therapy of balloon valvuloplasty to correct MS↑ ↑ 2.0 2.1 2.2 2.3 2.4 ↑ 3.0 3.1 3.2 3.3 3.4 ↑ ↑ ↑ 6.0 6.1 6.2 6.3 ↑
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report