Archive for January, 2012
Hearing loss is the decrease in the ability to hear and discriminate sounds. One of the most common birth defects, affecting about 12,000 babies (three out of 1.000) each year in the United States. 1 It is said that hearing loss is congenital when it is present from birth. Hearing loss can also develop later in childhood or adulthood.
The Centers for Disease Control and Prevention (Centers for Disease Control and Prevention, CDC) recommends that all babies a screening test for hearing loss before the first month of life, preferably before they leave the hospital . 1 This is because language and communication develop rapidly during the first two to three years of life and, if not detected, the hearing loss can lead to delays in developing these skills. Usually, no screening tests in newborns for hearing loss is not detected until two to three years of age.
The purpose of screening, early diagnosis and treatment is to help children with hearing loss develop language and academic skills equal to those of other children. Most states have a program of early detection and intervention to ensure that all babies undergo a screening test and those that detect hearing loss receive appropriate treatment. Organizations like the March of Dimes, the American Academy of Pediatrics United States (American Academy of Pediatrics), the Department of Maternal and Child Health (Maternal and Child Health Bureau), CDC and other institutions provide full support to these programs. Read the rest of this entry »
Hypertrophic cardiomyopathy is a heart muscle disease characterized by thickening of their walls.
It is estimated that HCM affects 1 in every 500 people. Not be attributed to an obvious cause, but runs in a high percentage of cases. The pattern of inheritance is called autosomal dominant, which means that 50 percent of the offspring will inherit the disorder, affecting both men and women. Read the rest of this entry »
There are over 100 different types of cancer. The disease can affect almost any organ in the body, skin to the colon. The cancers most frequently encountered in North America are lung cancer, breast cancer and prostate cancer. We distinguish four main groups of cancers:
carcinomas are tumors that originate in the exterior or interior of the internal organs (called epithelial tissue) and on the outer surface of the body ;
Leukemias are cancers of the blood constituents ;
ymphomas are tumors that form in the lymphatic system ;
sarcomas are tumors that originate in connective tissue such as bone and cartilage.
To ensure the growth of our body, some cells divide and multiply to create new tissue, while other cells (such as muscles or nerves) do not divide or multiply. Our body has specific genes, called oncogenes, which regulate the ability of cells to divide and grow. In addition, genes called tumor suppressor genes instruct the cells to stop their division process. Cancer occurs when oncogenes are “activated” at an inappropriate time, or tumor suppressor genes are inactivated when they should take action. This results in excessive growth in the form of tumors. Read the rest of this entry »
For diagnosis, cancer specialists or oncologists should assess symptoms, perform a physical exam and ask for blood tests and x-rays. The only way to determine with certainty whether the cells are cancerous is to take a tissue sample containing cells, a process called biopsy. Laboratory personnel shall examine the cells under a microscope, and the information obtained from the biopsy allows the doctor to say what type and stage of cancer. Read the rest of this entry »