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Cardiac tamponade Email this page to a friend Print Facebook Twitter Bookmark & Share Cardiac tamponade is pressure on the heart that occurs when blood or fluid builds up in the space between the heart muscle (myocardium) and the outer covering sac of the heart (pericardium). Causes In this condition, blood or fluid collects in the pericardium, the sac surrounding the heart. This prevents the heart ventricles from expanding fully. The excess pressure from the fluid prevents the heart from working properly. As a result, the body does not get enough blood. Cardiac tamponade can occur due to: Dissecting aortic aneurysm (thoracic) End-stage lung cancer Heart attack (acute MI) Heart surgery Pericarditis caused by bacterial or viral infections Wounds to the heart
You are most fertile at the time of ovulation, (when an egg is released from your ovaries) which usually occurs 12-14 days before your next period starts. This is the time of the month when you are most likely to get pregnant. It is unlikely that you will get pregnant just after your period, although it can happen.
A distal radius fracture almost always occurs about 1 inch from the end of the bone. The break can occur in many different ways, however. One of the most common distal radius fractures is a Colles fracture, in which the broken fragment of the radius tilts upward. This fracture was first described in 1814 by an Irish surgeon and anatomist, Abraham Colles -- hence the name "Colles" fracture.
A pulmonary embolism (PE) usually happens when a blood clot called a deep vein thrombosis (DVT), often in your leg, travels to your lungs and blocks a blood vessel. That leads to low oxygen levels in your blood. It can damage the lung and other organs and cause heart failure, too. A PE can be life-threatening, so if you've been diagnosed with DVT, you should be aware of this risk. Follow the treatment plan for your DVT to stop the clot from getting bigger and to keep new clots from forming. Symptoms and Diagnosis PE won't always cause symptoms. You might have: Chest pain, which may get worse with a deep breath Sudden shortness of breath or rapid breathing Fast heartbeat Sudden cough Coughing up blood Lightheadedness or fainting Anxiety Call 911 if you notice these symptoms. They could also be symptoms of a heart attack, pneumonia, or other serious problems.
Menopause is the end of menstruation. In clinical terms, you reach menopause when you haven't had a period for 12 months. Vaginal bleeding after menopause isn't normal and should be evaluated by your doctor. For instance, postmenopausal vaginal bleeding can be caused by: Cancer of the uterus, including endometrial cancer and uterine sarcoma Cancer of the cervix or vagina Thinning of the tissues lining the uterus (endometrial atrophy) or vagina (vaginal atrophy) Uterine fibroids Uterine polyps Infection of the uterine lining (endometritis) Medications such as hormone therapy and tamoxifen Pelvic trauma Bleeding from the urinary tract or rectum Excessive overgrowth of the cells that make up the lining of the uterus (endometrial hyperplasia) The cause of your bleeding may be entirely harmless. However, postmenopausal bleeding could result from something serious, so it's important to see your doctor promptly.
Atherosclerosis is a narrowing of the arteries caused by a buildup of plaque. It’s also called arteriosclerosis or hardening of the arteries. Arteries are the blood vessels that carry oxygen and nutrients from your heart to the rest of your body. As you get older, fat and cholesterol can collect in your arteries and form plaque. The buildup of plaque makes it difficult for blood to flow through your arteries. This buildup may occur in any artery in your body and can result in a shortage of blood and oxygen in various tissues of your body. Pieces of plaque can also break off, causing a blood clot. Atherosclerosis can lead to heart attack, stroke, or heart failure if left untreated.
Ca2+ binds with the membrane of the synaptic vesicles, which causes the vesicles to break and release the neurotransmitter into the synaptic cleft. After the neurotransmitters are released, they diffuse across the synaptic cleft and interact with receptors on the postsynaptic membrane. When the action potential reaches the presynaptic terminal, it provokes the release of a small quantity of neurotransmitter molecules, which bind to chemical receptor molecules located in the membrane of another neuron, the postsynaptic neuron, on the opposite side of the synaptic cleft.
Whether the result of an accident or biting on a piece of food that’s too hard, mouth injuries can cause teeth to become cracked, broken, or knocked out/dislodged. It is important to see a dentist because if left untreated, a dental emergency can lead to serious complications.
A 76 year-old, female, presented with a three day history of melena without any abdominal pain. She had one episode of hematemesis (about 100 ml blood) in the emergency room, patient has a strong alcoholic drink abuse.
An upper endoscopy with magnification was performed.
multiple ulcers were detected across of the gastric camera,
esophageal varices was also detected
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Kidney is most essential organ to remove nitrogenous waste materials from the body. Kidney was damaged by several human activities leads to kidney failure. Once it is damaged it cannot perform basic functions. To overcome this problem one of the best method we follows called hemodialysis. Hemodialysis is a process of removing of nitrogenous waste materials and excess fluids from the blood (collecting from arteries) through tubes containing semi permeable linings in the dialyzer and sending purified blood to the patient's body through veins. It covers the process of hemodialysis in step wise manner. Hemodialysis only performs some basic functions not all those which are performed by natural kidney like reabsorption etc..
This video: Pancreatic cancer begins in the tissues of your pancreas — an organ in your abdomen that lies horizontally behind the lower part of your stomach. Your pancreas secretes enzymes that aid digestion and hormones that help regulate the metabolism of sugars. Pancreatic cancer often has a poor prognosis, even when diagnosed early. Pancreatic cancer typically spreads rapidly and is seldom detected in its early stages, which is a major reason why it's a leading cause of cancer death. Signs and symptoms may not appear until pancreatic cancer is quite advanced and complete surgical removal isn't possible.
-Tibial stress fractures are common in athletes and nonathletes who suddenly increase their physical activity. Clinical features include pain, localized tenderness, and swelling. Plain x-ray is <50% sensitive for stress fractures, especially in the first 2-3 weeks after the onset of symptoms. MRI is preferred over bone scan or ultrasound as it can show the fracture line that extends through the cortex into the medullary line. MRI can also identify ligament, muscle, and cartilage injuries. However, MRI findings may be persistently abnormal for up to 1 year after the stress fracture has healed.
An enlarged spleen may cause: No symptoms in some cases. Pain or fullness in the left upper abdomen that may spread to the left shoulder. Feeling full without eating or after eating only a small amount from the enlarged spleen pressing on your stomach. Anemia. Fatigue. Frequent infections. Easy bleeding.