Search results
Results from the WOW.Com Content Network
A ventricular septal defect arises when the superior part of the interventricular septum, which separates the right and left ventricles of the heart, fails to fully develop. The right ventricle pumps blood to the lungs to get oxygen, while the left ventricle pumps blood to the rest of the body to provide oxygen to tissues.
The role of these macrophages is the removal of necrotic myocytes. However, these cells are directly involved in the weakening of the tissue, leading to complications such as a ventricular free wall rupture, intraventricular septum rupture, or a papillary muscle rupture. At a gross anatomical level, this staged is marked by a yellow pallor.
Rupture of the interventricular septum will cause a ventricular septal defect. Rupture of a papillary muscle will cause acute mitral regurgitation. [citation needed] The rupture will most often occur near the edge of the necrotic myocardium where it abuts healthy (but hyperemic) myocardium where the inflammatory response is at its greatest.
The aortopulmonary window is the rarest of septal defects, accounting for 0.15-0.6% of all congenital heart malformations. [4] An aortopulmonary window can develop alone or in up to 50% of cases alongside other cardiac defects such as interrupted aortic arch, coarctation of the aorta, transposition of great vessels, and tetralogy of Fallot. [3]
These can be large enough to take up a third of a hemithorax, compress the lung parenchyma, and cause displacement. The emphysema is now termed giant bullous emphysema, more commonly called vanishing lung syndrome due to the compressed parenchyma. [28] A bleb or bulla may sometimes rupture and cause a pneumothorax. [17]
A blunt cardiac injury is an injury to the heart as the result of blunt trauma, typically to the anterior chest wall.It can result in a variety of specific injuries to the heart, the most common of which is a myocardial contusion, which is a term for a bruise (contusion) to the heart after an injury. [1]
Management is a mixture of medical (eg pain relief, respiratory support, chest drainage and antibiotics), non-medical (physiotherapy and rehabilitation) and surgical (fixation of rib fractures if appropriate and operative treatment of cardiac, lung, airway, diaphragm and oesophageal injuries).
Atrial septal defect will present with a systolic crescendo-decrescendo murmur. It is best heard at the left upper sternal border. This is the result of an increased volume going through the pulmonary valve. It has association with a fixed, split S2 and a right ventricular heave. Ventricular septal defect (VSD) will present as a holosystolic ...