rheumatic fever: an update - International Journal of Pharmacy and
... RF is a delayed autoimmune response to Group A streptococcal pharyngitis, and the clinical manifestation of the response and its severity in an individual is determined by host genetic susceptibility, the virulence of the infecting organism, and a conducive environment6, 7, 8. Although streptococci ...
... RF is a delayed autoimmune response to Group A streptococcal pharyngitis, and the clinical manifestation of the response and its severity in an individual is determined by host genetic susceptibility, the virulence of the infecting organism, and a conducive environment6, 7, 8. Although streptococci ...
Congenital Left Main Coronary Artery Fistula to Right Atrium : A
... which was not investigated. There were no special symptoms related to heart or any other organ in her past medical history. In physical examination the patient was acyanotic, well developed and well nourished. Weight = 16 kg, height = 110 cm, BP = 100/60 mm Hg. Chest auscultation disclosed a grade 3 ...
... which was not investigated. There were no special symptoms related to heart or any other organ in her past medical history. In physical examination the patient was acyanotic, well developed and well nourished. Weight = 16 kg, height = 110 cm, BP = 100/60 mm Hg. Chest auscultation disclosed a grade 3 ...
effects of norepinephrine on human pulmonary - Heart
... one exception) pressure in group B. As norepinephrine is unlikely to have induced a rise in extravascular pressure, the difference between intraluminal and perivascular pressure, i.e. the transmural pressure, must have increased. Absence of a significant increase in pulmonary vascular resistance on ...
... one exception) pressure in group B. As norepinephrine is unlikely to have induced a rise in extravascular pressure, the difference between intraluminal and perivascular pressure, i.e. the transmural pressure, must have increased. Absence of a significant increase in pulmonary vascular resistance on ...
Repaired tetralogy of Fallot: the roles of cardiovascular magnetic
... the short term, the impaired contractility may be reversible, and elimination of the volume load can result in recovery of pump function. 4) Irreversible myocardial injury associated with fibrosis and increased interstitial collagen [28]. Although valve replacement may still be tolerated and of clin ...
... the short term, the impaired contractility may be reversible, and elimination of the volume load can result in recovery of pump function. 4) Irreversible myocardial injury associated with fibrosis and increased interstitial collagen [28]. Although valve replacement may still be tolerated and of clin ...
2.02 Understand the functions and disorders of the circulatory system
... Heart failure ■ What is it? A life threatening condition that is decreased pump efficiency usually with the left side of the heart. ■ Cause: ■ Heart attack, cardiac infections, hypertension, valve disease ■ Symptoms: ■ Edema of the legs, shortness of breath, pulmonary edema. ■ Treatment: ■ oxygen, m ...
... Heart failure ■ What is it? A life threatening condition that is decreased pump efficiency usually with the left side of the heart. ■ Cause: ■ Heart attack, cardiac infections, hypertension, valve disease ■ Symptoms: ■ Edema of the legs, shortness of breath, pulmonary edema. ■ Treatment: ■ oxygen, m ...
molecular cloning and reduced expression in experimental heart
... Whereas baseline secretion of ANP was not different between both groups, ANP release after LA stretch was significantly reduced in animals with shunt. Because the pressure was subphysiological at baseline compared with intact animals and thereby the stimulus for ANP release was minimal under these c ...
... Whereas baseline secretion of ANP was not different between both groups, ANP release after LA stretch was significantly reduced in animals with shunt. Because the pressure was subphysiological at baseline compared with intact animals and thereby the stimulus for ANP release was minimal under these c ...
PDF
... anomaly of development characterized by a mirror-image position of the heart and abdominal viscera. 1,2 Dextrocardia with situs inversus occurs rarely, with an estimated incidence of 1:8,000 to 1:10,000. 1 Unlike dextrocardia with situs solitus or situs ambiguous, the incidence of congenital heart d ...
... anomaly of development characterized by a mirror-image position of the heart and abdominal viscera. 1,2 Dextrocardia with situs inversus occurs rarely, with an estimated incidence of 1:8,000 to 1:10,000. 1 Unlike dextrocardia with situs solitus or situs ambiguous, the incidence of congenital heart d ...
Cardiac Arrhythmias (Part 2)
... heart, the irregularity of the cycle length, associated drug therapy, the peripheral vascular vasomotor system, disease in organ systems other than the heart, and the degree of anxiety caused by the disease processes. Sinus bradyeardia, even with rates as low as 40 beats/min, may not be associated w ...
... heart, the irregularity of the cycle length, associated drug therapy, the peripheral vascular vasomotor system, disease in organ systems other than the heart, and the degree of anxiety caused by the disease processes. Sinus bradyeardia, even with rates as low as 40 beats/min, may not be associated w ...
Cardiac Output Venous Return
... heart sound.” Kay: “The murmur did get louder as he leaned forward and exhaled.” Doc: “Yes, that brought his heart closer to your stethoscope. Still, it’s difficult to hear this murmur. Diastolic murmurs aren’t as loud as systolic murmurs.” ...
... heart sound.” Kay: “The murmur did get louder as he leaned forward and exhaled.” Doc: “Yes, that brought his heart closer to your stethoscope. Still, it’s difficult to hear this murmur. Diastolic murmurs aren’t as loud as systolic murmurs.” ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... surgery to the skin closure. Group P patients were given an equivalent volume of Ringer Lactate infusion. Perfusion techniques were standardized. The bypass machine was primed with a mixture of fresh whole blood mixed with crystalloid to achieve a predicted haematocrit of 25% to 30% in patients unde ...
... surgery to the skin closure. Group P patients were given an equivalent volume of Ringer Lactate infusion. Perfusion techniques were standardized. The bypass machine was primed with a mixture of fresh whole blood mixed with crystalloid to achieve a predicted haematocrit of 25% to 30% in patients unde ...
Atrioventricular Nodal Function in the Immature Canine
... paced beat until atrial or ventricular refractoriness, respectively, was reached. Both atrium and ventricle were paced at identical cycle lengths. In this study, we attempted to measure atrial, AV nodal and ventricular refractoriness under basal conditions. However, because of naturally occurring si ...
... paced beat until atrial or ventricular refractoriness, respectively, was reached. Both atrium and ventricle were paced at identical cycle lengths. In this study, we attempted to measure atrial, AV nodal and ventricular refractoriness under basal conditions. However, because of naturally occurring si ...
Final Protocol - Word 831 KB - Medical Services Advisory Committee
... pre-dilation of the native valve with conventional balloon aortic valvuloplasty (performed under rapid pacing), the balloon-mounted bioprosthesis is advanced through the aorta and positioned within the native aortic annulus using a specialised delivery system. The valve is subsequently expanded unde ...
... pre-dilation of the native valve with conventional balloon aortic valvuloplasty (performed under rapid pacing), the balloon-mounted bioprosthesis is advanced through the aorta and positioned within the native aortic annulus using a specialised delivery system. The valve is subsequently expanded unde ...
NEW Bradycardia Booklet - April 2010.indd
... Bradycardia is a term that describes a number of different conditions in which the hear t beats at an unusually slow rate. Sinus bradycardia is an unusually slow hear tbeat due to normal causes and commonly occurs in athletes or during a state of deep relaxation. This is perfectly normal and should ...
... Bradycardia is a term that describes a number of different conditions in which the hear t beats at an unusually slow rate. Sinus bradycardia is an unusually slow hear tbeat due to normal causes and commonly occurs in athletes or during a state of deep relaxation. This is perfectly normal and should ...
For Peer Review
... patients (72±7 ml, range 43–121, p<0.001) compared to controls (116±6 ml, range 77–152), Fig. 5. The SV indexed to body surface area was also higher in athletes (74±2 ml/m², range 65–83, p<0.001), and lower in patients (36±3 ml/m², range 21–61, p<0.001) compared to controls (60±2 ml/m², range 48–73) ...
... patients (72±7 ml, range 43–121, p<0.001) compared to controls (116±6 ml, range 77–152), Fig. 5. The SV indexed to body surface area was also higher in athletes (74±2 ml/m², range 65–83, p<0.001), and lower in patients (36±3 ml/m², range 21–61, p<0.001) compared to controls (60±2 ml/m², range 48–73) ...
Left ventricular diastolic function assessed using Doppler
... Pulmonary venous flow signals were recorded from the right upper pulmonary vein using pulsed Doppler with colour Doppler guidance. Peak velocity of systolic, diastolic, and atrial reversal signals were recorded. Doppler tissue imaging From the apical four chamber view, a 10 mm Doppler sample volume ...
... Pulmonary venous flow signals were recorded from the right upper pulmonary vein using pulsed Doppler with colour Doppler guidance. Peak velocity of systolic, diastolic, and atrial reversal signals were recorded. Doppler tissue imaging From the apical four chamber view, a 10 mm Doppler sample volume ...
aVR ST-segment elevation during narrow QRS complex tachycardia
... be normal; however there are cases –particularly in adults- with a tendency to extreme shift to the left. The cause of the shift is controversial. It has been proposed that it may be the consequence of selective hypertrophy of the LV postero-basal wall without irrigation involvement (irrigated by th ...
... be normal; however there are cases –particularly in adults- with a tendency to extreme shift to the left. The cause of the shift is controversial. It has been proposed that it may be the consequence of selective hypertrophy of the LV postero-basal wall without irrigation involvement (irrigated by th ...
The visualization and measurement of left ventricular deformation
... ventricle faces the chest, the inferior (posterior) side faces the back, and the septal region represents the inter-ventricular septum which separates the two ventricles. In longitudinal direction the left ventricle is divided into an apical, a mid-ventricular or equatorial, and a basal region [7]. ...
... ventricle faces the chest, the inferior (posterior) side faces the back, and the septal region represents the inter-ventricular septum which separates the two ventricles. In longitudinal direction the left ventricle is divided into an apical, a mid-ventricular or equatorial, and a basal region [7]. ...
Echocardiographic Evaluation of Ventricular Assist Devices
... parameters used in echocardiography to evaluate for this. Routine measures include mitral valve inflow pulse wave Doppler, pulmonary vein flow Doppler, and mitral annular tissue Doppler velocities (usually septal and lateral annular velocities) (10). Whilst these measures may not directly influence ...
... parameters used in echocardiography to evaluate for this. Routine measures include mitral valve inflow pulse wave Doppler, pulmonary vein flow Doppler, and mitral annular tissue Doppler velocities (usually septal and lateral annular velocities) (10). Whilst these measures may not directly influence ...
2015 Heart AR - texaschildrens.org
... Our surgical approach to the repair of tetralogy of Fallot (TOF) is individualized for each patient based on age, anatomy and symptoms. This allows us to attempt repair of the defect while preserving critical parts of the cardiac anatomy, thereby optimizing the patient’s cardiac function over the lo ...
... Our surgical approach to the repair of tetralogy of Fallot (TOF) is individualized for each patient based on age, anatomy and symptoms. This allows us to attempt repair of the defect while preserving critical parts of the cardiac anatomy, thereby optimizing the patient’s cardiac function over the lo ...
Cryoablation Lesion with Atrial Arrhythmia after Fontan Operation
... and stepwise adaptation of ventricular geometry to the reduction in volume load • The bidirectional Glenn procedure with additional pulmonary blood flow may provide patients with higher oxygen saturation and more growth of pulmonary arteries than BDG without APF. • However, there are disadvantages t ...
... and stepwise adaptation of ventricular geometry to the reduction in volume load • The bidirectional Glenn procedure with additional pulmonary blood flow may provide patients with higher oxygen saturation and more growth of pulmonary arteries than BDG without APF. • However, there are disadvantages t ...
Atrium-Selective Sodium Channel Block as a Strategy
... Methods and Results—Whole-cell patch clamp techniques were used to evaluate inactivation of peak sodium channel current (INa) in myocytes isolated from canine atria and ventricles. The electrophysiological effects of therapeutic concentrations of ranolazine (1 to 10 mol/L) and lidocaine (2.1 to 21 ...
... Methods and Results—Whole-cell patch clamp techniques were used to evaluate inactivation of peak sodium channel current (INa) in myocytes isolated from canine atria and ventricles. The electrophysiological effects of therapeutic concentrations of ranolazine (1 to 10 mol/L) and lidocaine (2.1 to 21 ...
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 ↑