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What is frontotemporal dementia?
What is frontotemporal dementia? samer kareem 1,917 Views • 2 years ago

Frontotemporal dementia is the name for a range of conditions in which cells in the frontal and temporal lobes of the brain are damaged. These lobes control behaviour, emotional responses and language. This means that people will experience changes in personality and behaviour, or may struggle with language – for example, in finding the right word. Frontotemporal dementia is a less common form of dementia which is more likely to affect younger people – those under 65.

Digoxin mechanism of action
Digoxin mechanism of action samer kareem 4,150 Views • 2 years ago

Digoxin is used to treat heart failure, usually along with other medications. It is also used to treat a certain type of irregular heartbeat (chronic atrial fibrillation). Treating heart failure may help maintain your ability to walk and exercise and may improve the strength of your heart. Treating an irregular heartbeat can decrease the risk for blood clots, an effect that may reduce your risk for a heart attack or stroke.

ALPHA & BETA BLOCKERS
ALPHA & BETA BLOCKERS samer kareem 4,057 Views • 2 years ago

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.

NEURON ACTION POTENTIAL
NEURON ACTION POTENTIAL samer kareem 4,062 Views • 2 years ago

Your body has nerves that connect your brain to the rest of your organs and muscles, just like telephone wires connect homes all around the world. When you want your hand to move, your brain sends signals through your nerves to your hand telling the muscles to contract. But your nerves don’t just say “hand, move.” Instead your nerves send lots of electrical impulses (called action potentials) to different muscles in your hand, allowing you to move your hand with extreme precision.

ACE INHIBITORS  MECHANISM OF ACTION
ACE INHIBITORS MECHANISM OF ACTION samer kareem 3,214 Views • 2 years ago

ACE Inhibitor Mechanisms. Angiotensin converting enzyme (ACE) inhibitors are agents used to relax blood vessels and lower blood pressure. They prevent an enzyme from producing angiotensin II, which narrows blood vessels and raises blood pressure, meaning the heart has to work harder to pump blood around the body.

New “Neural Dust” sensor could be implanted in the body
New “Neural Dust” sensor could be implanted in the body samer kareem 4,285 Views • 2 years ago

University of California, Berkeley engineers have built the first dust-sized, wireless sensors that can be implanted in the body, bringing closer the day when a Fitbit-like device could monitor internal nerves, muscles or organs in real time.

Removing a 20-CM Long Loa Loa Worm from the Eye
Removing a 20-CM Long Loa Loa Worm from the Eye Scott 4,430 Views • 2 years ago

Loa loa filariasis (also known as loiasis, loaiasis, Calabar swellings, Fugitive swelling, Tropical swelling and African eyeworm) is a skin and eye disease caused by the nematode worm, loa loa. Humans contract this disease through the bite of a Deer fly or Mango fly (Chrysops spp), the vectors for Loa loa. The adult Loa loa filarial worm migrates throughout the subcutaneous tissues of humans, occasionally crossing into subconjunctival tissues of the eye where it can be easily observed. Loa loa does not normally affect one's vision but can be painful when moving about the eyeball or across the bridge of the nose.The disease can cause red itchy swellings below the skin called "Calabar swellings". The disease is treated with the drug diethylcarbamazine (DEC), and when appropriate, surgical methods may be employed to remove adult worms from the conjunctiva.

Arterial Cannulation
Arterial Cannulation samer kareem 1,183 Views • 2 years ago

Arterial Cannulation

Kocher's method of relocating a dislocated shoulder
Kocher's method of relocating a dislocated shoulder samer kareem 4,341 Views • 2 years ago

This is a demonstration of the Kocher's method of relocating a dislocated shoulder

PERCUTANEOUS DILATATIONAL TRACHEOSTOMY
PERCUTANEOUS DILATATIONAL TRACHEOSTOMY samer kareem 11,325 Views • 2 years ago

we use a single, tapered PDT dilator and kit . All the equipment and supplies listed must be present at the bed-side, because there is no time to go looking for supplies if an airway emergency occurs during the procedure. Two teams are used simultaneously. One team manages the endo-tracheal tube, and the other manages the placement of the tracheostomy tube

Anti-phospholipid Syndrome
Anti-phospholipid Syndrome samer kareem 1,775 Views • 2 years ago

Antiphospholipid (AN-te-fos-fo-LIP-id) syndrome occurs when your immune system attacks some of the normal proteins in your blood. It can cause blood clots in your arteries or veins. And it can cause pregnancy complications, such as miscarriage and stillbirth. Blood clots in your leg veins cause a condition known as deep vein thrombosis (DVT). Damage from blood clots in your organs, such as your kidneys, lungs or brain, depends on the extent and location of the clot. For instance, a clot in your brain can cause a stroke. There's no cure for antiphospholipid syndrome, but medications can reduce your risk of blood clots.

How to Know If You Are Autoimmune
How to Know If You Are Autoimmune samer kareem 4,125 Views • 2 years ago

Learn a simple way to tell if you might be suffering from an undiagnosed autoimmune condition. Examples of autoimmune conditions include: • alopecia areata

PAD laser plaque removal
PAD laser plaque removal samer kareem 1,584 Views • 2 years ago

PAD laser plaque removal

Epinephrine
Epinephrine samer kareem 1,921 Views • 2 years ago

This medication is used in emergencies to treat very serious allergic reactions to insect stings/bites, foods, drugs, or other substances. Epinephrine acts quickly to improve breathing, stimulate the heart, raise a dropping blood pressure, reverse hives, and reduce swelling of the face, lips, and throat.

Endoscopic Injection of Vocal Cord Mass & Bronchoscopy Without Sedation
Endoscopic Injection of Vocal Cord Mass & Bronchoscopy Without Sedation samer kareem 1,510 Views • 2 years ago

This video demonstrates how bronchoscopy and vocal cord mass injections can be performed under endoscopic guidance in a patient without any sedation. Only topical and local anesthesia is used for patient comfort.

Spermatocele
Spermatocele samer kareem 26,242 Views • 2 years ago

A spermatocele (SPUR-muh-toe-seel) is an abnormal sac (cyst) that develops in the epididymis — the small, coiled tube located on the upper testicle that collects and transports sperm. Noncancerous and generally painless, a spermatocele usually is filled with milky or clear fluid that might contain sperm. The exact cause of spermatoceles is unknown but might be due to a blockage in one of the tubes that transports sperm. Spermatoceles, sometimes called spermatic cysts, are common. They typically don't reduce fertility or require treatment. If a spermatocele grows large enough to cause discomfort, your doctor might suggest surgery.

SPERMATOCELE vs EPIDIDIMAL CYST
SPERMATOCELE vs EPIDIDIMAL CYST samer kareem 3,013 Views • 2 years ago

The epididymis is a long coiled tube that lies above and behind each testicle. The epididymis collects and transports sperm from the testis to the vas deferens (tubes that transport sperm to the urethra). An epididymal cyst is a cyst-like mass in the epididymis that contains clear fluid. Typically, epididymal cysts and spermatoceles do not cause symptoms. When discovered, the epididymal cyst is usually about the size of a pea and feels separate from the top of the testis. Spermatoceles typically arise from the head of the epididymis, and are felt on the top portion of the testicle. Epididymal cysts and spermatoceles are often incidental findings on testicular self-examination or routine physical examination. It is important that any mass noted in the scrotum be examined by a urologist in order to obtain an accurate diagnosis, especially a mass on the testicle itself. Our team in the Division of Urology will typically be able to confirm the diagnosis on physical exam. However, a scrotal ultrasound may also be used in order to rule out other conditions.

Microsurgical Suturing
Microsurgical Suturing samer kareem 1,529 Views • 2 years ago

At first, grasping the needle is difficult because it will have a tendency to want to jump around. What can oftentimes help is to get hold of the thread with the left-hand forceps at a point 2 to 3 cm away from the needle. Dangle the needle until it just comes to rest on the surface. This will then allow you to use the angulated needle holder to grab the needle easily. Your needle is in a stable position if it is set up to 90 degrees to the axis of the tips of the forceps. You can make minor corrections by touching the needle with your left-hand forceps, or by partially relaxing your grip and nudging the needle tip against another firm object. You should hold the needle just behind its midpoint (If you hold it too near the tip, it will point downward. If you hold it too near the thread end, it will point upward.).

Microvascular Anastomosis
Microvascular Anastomosis samer kareem 1,123 Views • 2 years ago

Simple microinstruments and a medical school laboratory microscope were used for anastomosis training. Chicken blood vessels were used as a material for this study. A long segment of blood vessel from the proximal brachial artery to the distal radial artery was used for training. End-to-side anastomosis was practiced first, and the training continued with end-to-end anastomosis of the appropriate segments.

Fibula flap harvest from the posterior approach
Fibula flap harvest from the posterior approach samer kareem 2,090 Views • 2 years ago

Both lower extremities must be evaluated to determine the presence or extent of any disease and to ascertain the pulse status of the patient. The feet are examined for signs of peripheral vascular disease and the anterior and posterior tibial pulses are palpated. Because an intact arch can supply retrograde flow to the major vessels of the foot, it can be helpful to put pressure on the anterior tibial artery when detecting the presence of a posterior tibial pulse and visa-versa. This "modified Allen's test" may detect proximal vessel obstruction masked by an intact foot arch. The need for preoperative angiography in young, healthy patients with a normal physical examination has been hotly debated. Our tendency has been to obtain preoperative angiograms as a guide. Although rare, we have seen lower extremities with a dominant peroneal artery nourishing the foot and distal anterior and posterior vessels, contraindicating sacrifice of the peroneal artery. MRI or CT angiography can also be used in many circumstances.

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