Persistent Pulmonary Hypertension
Posted by Surgery on Oct 14, 2008
Persistent pulmonary hypertension (PPHN) affects more than 10,000 infants in the United States each year and can be defined as systemic hypoxemia, usually associated with evidence of extrapulmonary shunting and elevated pulmonary artery pressure (45:LASIX).Posted by Surgery on Oct 12, 2008
Neuroimaging and Central Nervous System Prognosis in Premature InfantCurrent Management Recommendations for Prenatally Diagnosed Congenital Diaphragmatic Hernia
Posted by Surgery on Oct 9, 2008
After a patient is identified as carrying a fetus with a CDH, a comprehensive evaluation (:LASIX) should be undertaken to render proper family counseling. Both advanced-level ultrasonography and fetal echocardiography should be performed to screen for associated anomalies. A genetic screen and chromosomal analysis should also be performed. Being armed with this information, which includes particular specific determination of the LHR and liver herniation status, allows fetuses to be stratified according to expected outcome. In addition, those fetuses whose CDH is diagnosed before 24 weeks’ gestation have a poorer prognosis compared with those diagnosed later. If the issues regarding TO for CDH outlined previously can be resolved satisfactorily, then perhaps therapy for liver up, LHR less than 0.9 fetuses will once again be offered. It is yet to be determined if the promise of the theoretical therapeutic benefit of fetal intervention for CDH will be realized (45:LASIX).NUTRITIONAL REQUIREMENTS
Posted by Surgery on Sep 9, 2008
Water requirements are related to caloric consumption; therefore, infants must consume much larger amounts of water per unit of body weight than adults. In general, calorie requirements (kcal per kg per day) are matched to the amount of fluid needs (mL per kg per day). The daily consumption of fluid by healthy infants is equivalent to 10% to 15% of their body weight, in contrast to only 2% to 4% by adults. In addition, the natural food of infants and children is much higher in water content than that of adults; the fruits and vegetables consumed by infants and children contain about 90% water. Only 0.5% to 3% of total fluid intake is retained by infants and children. About 50% is excreted through the kidneys, 3% to 10% is lost through the gastrointestinal tract, and 40% to 50% is insensible loss.PLASMA MEMBRANE CONTROLS DIFFUSION : Lasix
Posted by Surgery on Jul 10, 2008
PLASMA MEMBRANE CONTROLS DIFFUSION OF SUBSTANCES BETWEEN EXTERNAL AND INTERNAL CELLULAR ENVIRONMENTS : Lasix
The plasma membrane plays a major role in the interaction of the cell with the surrounding environment. It controls the exchange of ions and macromolecules between the inside and outside of the cell. The plasma membrane contains proteins that act as receptors for extracellular ligands that modify cellular gene expression and physiology. Other membrane proteins are involved in the interaction with other cells within the same organ or migrating cells, especially of the immune system, which infiltrate the tissue during pathological conditions. The plasma membrane is also actively important in the secretion of proteins to the extracellular milieu as well as the internalization of extracellular molecules by a process known as endocytosis. For some cells, the process of endocytosis is extended to the internalization of whole cells (phagocytosis), which could be dead cells or pathogens. Ions and polar molecules pass through the plasma membrane via protein pores. These pores display substrate specificity and can be classified into pumps, carriers, and channels. Pumps drive molecules against a concentration gradient using sources of energy, especially hydrolysis of ATP.
Tags: Cell Structure and Function, LASIX
Greetings, I the practising surgeon from Serbia. Call me Ivan Govak. In the works I use works
by an unknown author, if it let me know, and also works of others practics doctors. I have a family and two charming children.