Search results
Results From The WOW.Com Content Network
The elongated, exposed vessels in lower velamentous cord insertion cases are more readily compressed by the fetus, hence there is an even greater risk of non-reassuring fetal heart rate pattern and emergency caesarean section.
This abnormal insertion of the umbilical cord into the placenta can result in a loss of adequate blood flow to the developing fetus due to restriction. [3] The fetus is unable to obtain normal amounts of required oxygen and nutrition through the placenta , and this can further cause other severe complications .
Histopathology of placenta with increased syncytial knotting of chorionic villi, with two knots pointed out. The following characteristics of placentas have been said to be associated with placental insufficiency, however all of them occur in normal healthy placentas and full term healthy births, so none of them can be used to accurately diagnose placental insufficiency: [citation needed]
Vasa previa is seen more commonly with velamentous insertion of the umbilical cord, accessory placental lobes (succenturiate or bilobate placenta ), multiple gestation, and in vitro fertilisation pregnancy. In IVF pregnancies, incidence as high as one in 300 has been reported [citation needed].
Significant complications of the operation include bleeding, heart problems (heart attack, arrhythmias), stroke, infections (often pneumonia) and injury to the kidneys. Three coronary artery bypass grafts, a pedicled LITA to LAD and two saphenous vein grafts – one to the right coronary artery system and one to the obtuse marginal system.
A myocardial bridge (MB) is a common congenital heart anomaly in which one of the coronary arteries tunnels through the heart muscle itself.. In most people, the coronary arteries rest on top of the heart muscle and feed blood down into smaller vessels (e.g. the septal arteries) which then carry blood to the heart muscle itself (i.e. populate throughout the myocardium).
Major factors influencing cardiac output – heart rate and stroke volume, both of which are variable. [1]In cardiac physiology, cardiac output (CO), also known as heart output and often denoted by the symbols , ˙, or ˙, [2] is the volumetric flow rate of the heart's pumping output: that is, the volume of blood being pumped by a single ventricle of the heart, per unit time (usually measured ...
The first finding is that junctional rhythms are regular rhythms. This means that the time interval between beats stays constant. The next normal finding is a normal QRS. Since the impulse still travels down the bundle of His, the QRS will not be wide. Junctional rhythms can present with either bradycardia, a normal heart rate, or tachycardia. [9]