08.11.2013

Health articles about lung cancer 7th

For any elastic structure, the increase in size or expansion is possible only when there is a difference in the pressure within and around the structure.
Lung compliance can be classified into two types: static compliance and dynamic compliance.
During this maneuver, airflow is discontinued for half a second, which eliminates the effects of airway resistance. On the other hand, dynamic compliance represents pulmonary compliance during periods of gas flow, such as during active inspiration. Elastic tension increases during inspiration and decreases due to recoil during expiration.
Type II epithelial cells are cells that line the inner walls of the alveoli and the lung passages.
Pulmonary surfactant that is synthesized by the type II alveolar cells reduces the surface tension, helping prevent the alveoli from collapsing. The polar head allows them to interact with water molecules and reduce the surface tension. A high degree of compliance indicates a loss of elastic recoil of the lungs, which can occur due to old age or medical conditions such as emphysema. In case of pulmonary fibrosis, the elastic properties of the lungs get affected due to the replacement of elastin by collagen.
Lung cancer may form in any part of the lung, but the vast majority of lung cancers (90% to 95%) occur in epithelial cells. Pulmonary manifestations of tuberculosis are varied and depend in part whether the infection is primary or post-primary. This tiny cluster of bacteria is methicillin-resistant Staphylococcus aureus (MRSA), seen under a microscope.
Bug bites, rashes, and other skin problems can be confused with MRSA because the symptoms are similar. ER doctors often ask patients who think they have a spider bite whether they saw the spider. MRSA can also lead to cellulitis, an infection of the deeper layers of skin and the tissues beneath them.
Without proper, timely care, the bacteria can cause a minor infection site to become an abscess -- a painful lump under the skin that’s filled with pus.
MRSA is spread by touching an infected person or exposed item when you have an open cut or scrape.
Hospitals are the main sources of MRSA infections due to the high traffic of ill or wounded patients. It looks like MRSA has jumped from humans to household pets, where it can linger without clear symptoms. MRSA can spread from a small, contained infection to one that involves your internal organs and body systems. Frequent hand washing with soap and water and using an alcohol-based hand sanitizer are great ways to avoid MRSA. 49th Interscience Conference on Antimicrobial Agents and Chemotherapy, San Francisco, Sept. Lance Peterson, MD, department of microbiology and infectious diseases research, NorthShore University Health System, Evanston, Ill.
Marilyn Roberts, PhD, department of environmental and occupational health sciences, University of Washington School of Public Health and Community Medicine, Seattle. WebMD includes sub-health centers for Breast Cancer, Colorectal Cancer, Lung Cancer, Melanoma, Ovarian Cancer and Prostate Cancer. WebMD is one of the top destinations on the web if you are or someone you know is affected by cancer. Please visit the WebMD Cancer Health Center and let us know what you think of the site and it’s resources in the comment box below. Since scouting around for quite a while to have a good content articles in relation to this area . Your doctor may order imaging tests to see if the cancer has spread to the bones, even if you haven't noticed any symptoms. As bone metastases damage bone, calcium is often released from the bone into the bloodstream.
Surgery is often used as a treatment to help stabilize weakened bone that may be at risk for breakage. Bone metastases aren't usually curable, but treatments may be able to shrink them and relieve symptoms. Ovarian cancer is known to cause an abrupt loss of appetite that’s normally out of character for the person affected. If you have symptoms of ovarian cancer you should see your doctor, who will examine you and may order some tests.


ABOUT USCancer Health Articles is your site for All Cancer news, and Help for healthy living , This Site is dedicated to helping persons who face cancer. Pulmonary compliance, which is also referred to as lung compliance, refers to the ability of the lungs to expand. It is the change in lung volume for each unit change in transpulmonary pressure (difference in pressure between alveolar pressure and pleural pressure) at a given time. The former represents pulmonary compliance during periods without gas flow, such as during an inspiratory pause. VT stands for tidal volume and Pplat stands for plateau pressure that is measured at the end of inhalation and prior to exhalation using an inspiratory hold maneuver.
Pplat is never more than PIP and is typically 3-5 cmH2O lower than PIP (Peak inspiratory pressure or the maximum pressure during inspiration, when airway resistance is not elevated). It can be affected by changes in airway resistance, chest wall compliance, and lung compliance.
While the former is the measure of distensibility or the elastic properties of the lungs, the latter refers to the tendency of the lungs to resist distension and recoil or return to the normal size after distension. The construction of the lung is such that inflation of an alveolus tends to increase the inflation of the one adjacent to it (interdependence). Surface tension is a result of unequal attraction between gas molecules and liquid molecules.
As gas flows from a region of high pressure to low pressure, it flows from the small to large alveolus, which can cause the small alveolus to collapse. Decreased compliance means that a greater change in pressure is needed for a given change in volume.
Collagen is not as elastic as elastin, which affects the ability to lungs to stretch or expand.
Changes in elastance or surface tension forces in the lungs can have an adverse effect on pulmonary compliance, which in turn can lead to breathing problems.
This strain of the common "staph" bacteria causes infections in different parts of the body -- including the skin, lungs, and other areas. It's also seen in older people, those living in nursing homes, and people with weakened immune systems. Contact a health care provider, who will swab a sample of the area and send it to a lab for testing. Oral antibiotics can treat MRSA, but because it doesn’t respond to many common drugs like methicillin, amoxicillin, penicillin, oxacillin, and cephalorsporins, your doctor may use clindamycin, trimethoprim-sulfamethoxazole, or linezolid.
It has approved three new antibiotics in the past few years: Dalvance (dalbavancin) and Orbactiv (oritavancin), which you get through an IV, and Sivextro (tedizolid phosphate), a pill that you take every day. Stopping early can cause the infection to come back or allow the MRSA bacteria to become immune to the drugs that still work. Wipe down surfaces you come into contact with at the gym and shower promptly after any skin-to-skin contact. It is intended for general informational purposes only and does not address individual circumstances. Cancer cells from that area break away and travel through the bloodstream and lymphatic system. Although your doctor can't tell for sure if cancer will spread, certain types of cancer are more likely to spread to bone. This can affect the nerves, causing loss of mobility, muscle weakness, numbness, and trouble urinating.
Over time, this can cause them to break, even during routine activities like coughing or sitting down in a chair. High calcium levels can be a serious problem and can lead to nausea, constipation, dehydration, and even coma. Your doctor may insert rods, screws, pins, or plates to help stabilize a bone and keep it from breaking. But if pain persists, your doctor may suggest over-the-counter pain relievers, such as acetaminophen, ibuprofen, or naproxen. This is because the cancer impacts metabolism—or the breakdown of food into energy that fuels the body.
I will get sudden, instant pain in my stomach to where i can’t stand and immediately my stomach becomes tender to touch.
The information provided on this website is not a substitution for professional medical care, treatment or advice.
Basically, it is the measure of the change in the volume of the lungs due to the change in pleural pressure or pressure across the lungs. Compliance has an inverse relationship to elastance, which is a measure of the tendency of a structure to return to its original form after the removal of a deforming force.


Water molecules are more likely to attract each other than getting attracted to air molecules.
Surfactant's main component is a phospholipid called dipalmitoyl phosphatidylcholine, which is stored in lamellar bodies in Type II pneumocytes and released by exocytosis to the alveolar surface.
The phospholipids dissolve unequally in the fluid lining the alveoli, thereby reducing the surface tension. However, the decrease in alveolar volume decreases surface area, which concentrates the surfactant molecules.
This could occur due to atelectasis (failure of alveoli to expand), edema (fluid retention), fibrosis (formation of excess fibrotic tissue), pneumonia (inflammation of lungs), or absence of surfactant.
In the case of cancer, the system that controls and monitors cell growth malfunctions, allowing cancer cells to form and grow.
Lung cancer is responsible for more deaths in men and women worldwide than any other malignancy. A chronic disease like diabetes, cancer, or HIV raises your chances of coming down with this stubborn infection.
These outbreaks -- called community-associated MRSA -- are seen at schools, gyms, day care centers and other places where people share close quarters. A few ways to protect yourself: Cover scrapes before playing in the sand, wash your hands often, shower when you come out of the water, and don’t wear a swimsuit again without washing it. Keep the sore covered until it has healed and change the bandages when your doctor's tells you to. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. At other times, bone metastasis can cause bone to become harder, though it may still break. These treatments, called systemic because they affect the whole body, can cause side effects such as nausea, vomiting, fatigue, hair loss, and increased risk of infection. In certain cancer patients, bisphosphonates may help curb bone pain, reduce bone damage, lower elevated calcium levels, and decrease the risk for broken bones.
If these medications don't bring relief, your doctor may prescribe a stronger pain reliever, such as codeine, hydrocodone, oxycodone, or morphine. You may have a quicker recovery if you take an active role in your health -- by asking questions, learning more about your condition and its treatments, and taking care of yourself.
Since the lungs and chest wall are both a part of the respiratory system, the elastance of the whole respiratory system is calculated by adding the elastance of the chest wall and the lungs. On the other hand, the fluid air surface tension elastic forces in the alveoli contribute to two-third of the lung capacity. Thus, there is a tendency to decrease the surface area of the air water interface (to 'contract').
The surfactant stabilizes the alveolar size, increases compliance, and keeps the lungs dry.
Dyspnea (shortness of breath) on exertion is the main symptom of diminished lung compliance. On the other hand, emphysema is characterized by damage to the elastic tissue of the alveolar sacs in the lungs due to enzymes secreted by leukocytes (white blood cells). Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. Larger tumors that have spread to the lymph nodes are also more likely to spread to the bones.
Other common areas for bone metastases include the thigh bone, upper arm bone, ribs, hips, and skull. A bone scan can often find metastases earlier than an X-ray, and can check the whole body at once. When the surface tension decreases due to the surfactant, the pressure becomes lower in the small alveolus. Ablation is another local treatment that destroys tumors with cold, heat, electric currents, or alcohol.
If there was no surface tension elastic forces, the water molecules would attract each other, forcing air from the alveoli to bronchi and causing the alveoli to collapse. The most common sites where lung cancer spreads include the brain, bones, liver, and adrenal glands.
At times, the alveolar sacs could become filled with fluid due to edema, which in turn might be observed in case of pneumonia or left-sided heart failure.



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