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Beta-blockers, also known as beta antagonists, beta-adrenergic blocking agents, or beta-adrenergic antagonists, are drugs that are prescribed to treat several different types of conditions, including hypertension (high blood pressure), angina, some abnormal heart rhythms, heart attack (myocardial infarction), anxiety, migraine, glaucoma, and overactive thyroid symptoms.
Alpha blockers relax certain muscles and help small blood vessels remain open. They work by keeping the hormone norepinephrine (noradrenaline) from tightening the muscles in the walls of smaller arteries and veins, which causes the vessels to remain open and relaxed. This improves blood flow and lowers blood pressure.
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The most frequent incision utilized to open the abdomen for liver surgery is called a chevron incision. In this incision a cut is made on the abdomen below the rib cage. The cut starts under the armpit below the ribs on the right side of the abdomen and continues all the way across the abdomen to the opposite arm pit thereby the whole width of the abdomen is cut to provide access to the liver. The average length of the incision is approximately 24 to 30 inches. This is one of the longest incisions is utilized in abdominal surgery. The incision is frequently associated with significant discomfort after the surgery and in some patients the discomfort can continue for many months, particularly when some of the nerves in the abdominal wall have been cut during the surgery. Laparoscopic surgery provides advantages over open surgery for the liver since the chevron incision is completely avoided and the surgery is performed through tiny incisions. As a consequence the duration of stay in hospital, the amount and duration of post operative discomfort, and the length of recovery is much shorter after the laparoscopic procedure compared to open surgery
Work out the length of your average menstrual cycle. Day one is the first day of the menstrual period and the last day is the day before the next period begins. Ovulation happens about two weeks before the next expected period. So if your average menstrual cycle is 28 days, you ovulate around day 14.
Gallstone ileus is an important, though infrequent, cause of mechanical bowel obstruction, affecting older adult patients who often have other significant medical conditions. It is caused by impaction of a gallstone in the ileum after being passed through a biliary-enteric fistula. The diagnosis is often delayed since symptoms may be intermittent and investigations fail to identify the cause of the obstruction. The mainstay of treatment is removal of the obstructing stone after resuscitating the patient. Gallstone ileus continues to be associated with relatively high rates of morbidity and mortality.
Genetic surfactant dysfunction disorders are caused by mutations in genes encoding proteins critical for the production and function of pulmonary surfactant. These rare disorders may produce familial or sporadic lung disease, with clinical presentations ranging from neonatal respiratory failure to childhood- or adult-onset interstitial lung disease. An overview of these disorders is presented in the table.. Interstitial lung diseases in children until recently were categorized by their histologic appearance in a manner similar to that used for adult forms of interstitial lung disease (ILD). In children, the lung histopathology findings associated with desquamative interstitial pneumonitis (DIP) are now known to often result from genetic mechanisms that disrupt normal surfactant production and metabolism. By contrast, DIP in adults is considered to represent a distinct type of ILD, which is strongly associated with cigarette smoking and carries a relatively favorable prognosis [1]. These genetic disorders also result in histopathologic patterns other than DIP, including findings of pulmonary alveolar proteinosis and chronic pneumonitis of infancy. An understanding of the pathogenesis of these disorders permits a mechanistic classification as genetic surfactant dysfunction disorders instead of their previous classification based upon histologic appearance.
Skin cancer is the most common of all cancer types, accounting for an estimated one third of all new cases. It’s important to take the right steps to ensure proper protection and adopt good sun care habits no matter what your age or stage in life.
In this podcast, CDC's Dr. Barbara Reynolds discusses best practices in crisis and emergency risk communication. She characterizes the initial phase of the crisis communication lifecycle and describes the five most common mistakes made in emergency communication to the public and how to counter them.
Normal Heart Sounds With the aid of a stethoscope you can hear the characteristic sounds of the normal heartbeat, typically described as a "lub-dub." These sounds are produced by the closure of the heart valves. The first heart sound or "lub" results from closure of the tricuspid and mitral valves. It is a rather low-pitched and a relatively long sound which, as indicated in, represents the beginning of ventricular systole. The second heart sound, or "dub," marks the beginning of ventricular diastole. It is produced by closure of the aortic and pulmonary (pulmonic) semilunar vanes when the intraventricular pressure begins to fall. This "dub" sound is typically heard as a sharp snap because the semilunar valves tend to close much more rapidly than the AV valves. Because diastole occupies more time than systole, a brief pause occurs after the second heart sound when the heart is beating at a normal rate. Therefore, the pattern that one hears is one of: "lub-dub" pause, "lub-dub" pause, and so on. Sometimes, especially in young normal individuals, a third heart sound can be heard. This sound is produced by the very rapid influx of blood into the partially filled ventricle. It is typically very faint and as such difficult to hear.
Preventing heart attacks and stroke can involve extensive surgery to remove plaque from your arteries, but as FOX17's Nick Paranjape shows us, there's a new procedure in Middle Tennessee that is less invasive and substantially cuts down on your recovery time. At 76, Jimmy Wilkie of Hendersonville exercises on his treadmill 3-4 times a week. Recently, he started having pain in his left leg. It was so bad, he couldn't even walk. Turned out, Mr. Wilkie had a blocked artery in his leg. In years past, this would've required major bypass surgery. Not anymore!"The Turbohawk Catheter has really opened a new door for us," says Dr. Dan Wunder.Dr. Wunder, an Interventional Radiologist at Premier Radiology in Madison, is talking about the Turbohawk. It's a device which is inserted into the blocked artery, and inside the Turbohawk are 4 tiny blades."It can cut the plaque and with that shape of the disc it cuts with it pushes it forward into the catheter," says Dr. Wunder.The one-hour procedure doesn't just push the plaque to the sides where it can re-grow, but instead grabs it and removes it!"We pull it back out and it fills up," says Dr. Wunder. "Empty it out, go back down and we can cut some more out."Before and after images really say it all."They used a roto rooter as he called it," says Wilkie.A roto rooter, Turbohawk, call it what you want, but Wilkie says all he knows is the procedure worked right away!"There wasn't any pain at all in my leg," says Wilkie.It's rare, but the outpatient procedure can have complications like plaque getting pushed down in the leg. Dr. Wunder says the main symptoms of a blockage in your legs is having severe pain or cramping when you're walking or exercising.
A Cesarean section (C-section) is surgery to deliver a baby. The baby is taken out through the mother's abdomen. In the United States, almost one in three women has their babies this way. Some C-sections are planned, but many are done when unexpected problems happen during delivery. Reasons for a C-section may include