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Pneumonia Vaccine
Pneumonia Vaccine samer kareem 5,017 Views • 2 years ago

There are currently 2 types of pneumococcal vaccines: pneumococcal conjugate vaccine (PCV13 or Prevnar 13®) and pneumococcal polysaccharide vaccine (PPSV23 or Pneumovax®). PCV13 is recommended for all children younger than 5 years old, all adults 65 years or older, and people 6 years or older with certain risk factors.

Fertility in Men
Fertility in Men samer kareem 7,745 Views • 2 years ago

A man's age matters. As men get older, the chances of conceiving and having a healthy child decline. Male fertility starts to decline after 40 when sperm quality decreases. This means it takes longer for their partners to conceive and when they do, there's an increased risk of miscarriage.

Laparoscopic Sigmoid Colectomy
Laparoscopic Sigmoid Colectomy samer kareem 2,516 Views • 2 years ago

This operation can be performed as an open or laparoscopic (keyhole procedure). During the operation the sigmoid colon is removed. This involves taking away the blood vessels and lymph nodes to that part of the bowel. The surgeon then re-makes the join (anastomosis) between the remaining left side of the colon and the top of the rectum. The surgeon may use either sutures or special staples to make this join.

The basics of the ECG
The basics of the ECG samer kareem 17,234 Views • 2 years ago

This short course reviews the main features of EKG tracings. A method for analyzing EKGs is also presented. This method includes assessment of rhythm, calculating heart rate, observing P-wave forms, measurement of EKG intervals and segments and the evaluation of other relevant waves.

Ocular, Clinical Tests of Myasthenia Gravis
Ocular, Clinical Tests of Myasthenia Gravis samer kareem 4,882 Views • 2 years ago

The arm and leg muscles are affected later. Myasthenia gravis (MG) is an autoimmune disease — a disease that occurs when the immune system attacks the body's own tissues. In MG, that attack interrupts the connection between nerve and muscle — the neuromuscular junction.

Hodgkin's lymphoma
Hodgkin's lymphoma samer kareem 5,886 Views • 2 years ago

Hodgkin's lymphoma — formerly known as Hodgkin's disease — is a cancer of the lymphatic system, which is part of your immune system. In Hodgkin's lymphoma, cells in the lymphatic system grow abnormally and may spread beyond the lymphatic system. As Hodgkin's lymphoma progresses, it compromises your body's ability to fight infection. Hodgkin's lymphoma is one of two common types of cancers of the lymphatic system. The other type, non-Hodgkin's lymphoma, is far more common. Advances in diagnosis and treatment of Hodgkin's lymphoma have helped give people with this diagnosis the chance for a full recovery. The prognosis continues to improve for people with Hodgkin's lymphoma.

Is a New Treatment for Diabetes Near?
Is a New Treatment for Diabetes Near? samer kareem 2,014 Views • 2 years ago

A new Harvard study claims a breakthrough that could lead to a new treatment of Type 1 diabetes. WSJ's Ron Winslow explains what it means on Lunch Break. Photo: Getty

Diabetes Pathophysiology
Diabetes Pathophysiology samer kareem 6,421 Views • 2 years ago

When food is taken, it is broken down into smaller components. Sugars and carbohydrates are thus broken down into glucose for the body to utilize them as an energy source. The liver is also able to manufacture glucose. In normal persons the hormone insulin, which is made by the beta cells of the pancreas, regulates how much glucose is in the blood. When there is excess of glucose in blood, insulin stimulates cells to absorb enough glucose from the blood for the energy that they need. Insulin also stimulates the liver to absorb and store any excess glucose that is in the blood. Insulin release is triggered after a meal when there is a rise in blood glucose. When blood glucose levels fall, during exercise for example, insulin levels fall too. High insulin will promote glucose uptake, glycolysis (break down of glucose), and glycogenesis (formation of storage form of glucose called glycogen), as well as uptake and synthesis of amino acids, proteins, and fat. Low insulin will promote gluconeogenesis (breakdown of various substrates to release glucose), glycogenolysis (breakdown of glycogen to release gluose), lipolysis (breakdown of lipids to release glucose), and proteolysis (breakdown of proteins to release glucose). Insulin acts via insulin receptors.

Understanding MRIs
Understanding MRIs samer kareem 21,342 Views • 2 years ago

Magnetic resonance imaging (MRI) can be an important tool in the diagnosis of multiple sclerosis (MS). MRI can also be used to monitor the progression of the disease in people living with MS. How does it work? MRI uses very strong magnets, radio signals, and computer software to take 3-dimensional pictures of the inside of the body. Will I need contrast material? Maybe. Contrast material is a substance that temporarily changes the way imaging tools interact with the body. They are often used to visualize certain types of MS disease activity on the MRI. If your doctor thinks your scan requires this contrast material, you may get an injection before you get in the MRI machine. How long will it take? The time may vary based on the type of MRI. Be sure to discuss with your doctor in advance so he or she can provide you with exact timing. But don’t worry, you won’t have to stay still the whole time. The technician will let you know when they’re starting a new image.

Reading the 12-lead ECG
Reading the 12-lead ECG samer kareem 19,688 Views • 2 years ago

Reading the 12-lead ECG

Knee Replacement – What to expect during your surgery - Mayo Clinic Health System
Knee Replacement – What to expect during your surgery - Mayo Clinic Health System Surgeon 71 Views • 2 years ago

Marcus Greatens, M.D., an orthopedic surgeon at Mayo Clinic Health System provides insight into a few of the things patients can expect to experience during knee replacement surgery.

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Conductive Keratoplasty
Conductive Keratoplasty samer kareem 3,425 Views • 2 years ago

Keratoplasty is the procedure whereby abnormal corneal tissue is replaced by a healthy donor cornea.

Ankle Fusion Surgery
Ankle Fusion Surgery samer kareem 4,413 Views • 2 years ago

Ankle fusion (arthrodesis) This is a surgical procedure which joins together the main bones of the ankle joint (the tibia and the talus). However, depending on the technique your surgeon will use, occasionally the fibula will be included in this procedure. The two joint surfaces which generate the pain are removed.

Chordoid meningioma
Chordoid meningioma samer kareem 14,367 Views • 2 years ago

Chordoid meningioma, classified as atypical meningioma according to the World Health Organisation (WHO) classification, is a rare subtype, which represents only 0.5% of all meningiomas and is associated with a high incidence of recurrence. Multiple intracranial meningiomas are rare in non-neurofibromatosis patients. We present a female patient with both of these rare types of meningioma. The patient presented with two concurrent intracranial meningiomas, with one a meningotheliomatous subtype and the other a chordoid meningioma. Given the wide array of histological differential diagnoses in chordoid meningioma, immunohistochemistry has a significant role to play in differentiating them. Recurrence in chordoid meningioma can be generally predicted based on the extent of resection, the percentage of chordoid element, and proliferation indices.

Laser- Removal of Salivary Stone
Laser- Removal of Salivary Stone samer kareem 10,462 Views • 2 years ago

Laser- Removal of Salivary Stone

Do Ear Candles Remove Earwax?
Do Ear Candles Remove Earwax? samer kareem 2,695 Views • 2 years ago

We are aware that the "official" way to use an ear candle is small end down into the ear, but for this video, we have elected to use it the way most "lay" public would (small end up). Ear candling is an alternative medicine practice that is thought to remove earwax. However, this video illustrates how ineffective this practice is in removing earwax... and can potentially be even harmful. And yes... It is still frequently practiced.

Osgood Schlatter disease
Osgood Schlatter disease samer kareem 3,817 Views • 2 years ago

Osgood-Schlatter disease can cause a painful lump below the kneecap in children and adolescents experiencing growth spurts during puberty. Osgood-Schlatter disease occurs most often in children who participate in sports that involve running, jumping and swift changes of direction — such as soccer, basketball, figure skating and ballet. While Osgood-Schlatter disease is more common in boys, the gender gap is narrowing as more girls become involved with sports. Age ranges differ by sex because girls experience puberty earlier than do boys. Osgood-Schlatter disease typically occurs in boys ages 13 to 14 and girls ages 11 to 12. The condition usually resolves on its own, once the child's bones stop growing.

Hypothalamus and Pituitary
Hypothalamus and Pituitary samer kareem 4,510 Views • 2 years ago

The pituitary gland is often portrayed as the "master gland" of the body. Such praise is justified in the sense that the anterior and posterior pituitary secrete a battery of hormones that collectively influence all cells and affect virtually all physiologic processes. The pituitary gland may be king, but the power behind the throne is clearly the hypothalamus. As alluded to in the last section, some of the neurons within the hypothalamus - neurosecretory neurons - secrete hormones that strictly control secretion of hormones from the anterior pituitary. The hypothalamic hormones are referred to as releasing hormones and inhibiting hormones, reflecting their influence on anterior pituitary hormones.

Multiple Endocrine Neoplasia  2A (Sipple Syndrome)
Multiple Endocrine Neoplasia 2A (Sipple Syndrome) samer kareem 1,841 Views • 2 years ago

Multiple endocrine neoplasia type 2 (MEN2) (also known as "Pheochromocytoma and amyloid producing medullary thyroid carcinoma", "PTC syndrome," and "Sipple syndrome") is a group of medical disorders associated with tumors of the endocrine system. The tumors may be benign or malignant (cancer).

Basics of Multiple Endocrine Neoplasia
Basics of Multiple Endocrine Neoplasia samer kareem 5,097 Views • 2 years ago

Multiple endocrine neoplasia is a group of disorders that affect the body's network of hormone-producing glands (the endocrine system). Hormones are chemical messengers that travel through the bloodstream and regulate the function of cells and tissues throughout the body. Multiple endocrine neoplasia typically involves tumors (neoplasia) in at least two endocrine glands; tumors can also develop in other organs and tissues. These growths can be noncancerous (benign) or cancerous (malignant). If the tumors become cancerous, the condition can be life-threatening.

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