Top videos

Scott
97,511 Views ยท 2 years ago

A video showing the delivery of the placenta

M_Nabil
28,148 Views ยท 2 years ago

a video showing how to perform Percutaneous tracheostomy

Scott
24,521 Views ยท 2 years ago

Utilizing specially engineered lasers, permanent hair removal has never been more comfortable for men and women of all colors and skin types. In just four or five sessions, patients can achieve lasting results without damaging the skin or any surrounding tissue.

Dark pigment (melanin) in the hair shaft and the papilla (the root of the hair follicle) are targeted by a specific light-energy emitted by the laser. In a tiny fraction of a second, the hair is simply vaporized without damaging the skin or any surrounding tissue.

In one pulse (that lasts a tiny fraction of a second) our lasers remove hair on a patch of skin the size of a quarter. The hair removal sensation is like plucking hair or getting snapped by a rubber-band. Our lasers incorporate a patented and state-of-the-art integrated cooling system that acts as a natural anesthetic, cooling down the skin to minimize any discomfort. Patients unanimously report that the hair removal treatment is a "piece of cake" compared to waxing.

Scott
14,428 Views ยท 2 years ago

A dermatologist explains how this skin condition is recognised and treated and the challenging effects it can have on an individual.

Scott
25,466 Views ยท 2 years ago

This video clip shows nasolabial cyst being excised under local anesthesia

Mohamed El-Rouby
23,593 Views ยท 2 years ago

ุชู†ุงุณู‚ ุงู„ู‚ูˆุงู… ู…ุทู„ุจ ูƒู„ ุฃู†ุณุงู† ุณูˆุงุก ุฑุฌู„ ุฃูˆ ุฃู…ุฑุฃุฉ ูˆู„ุฐู„ูƒ ูŠุฌุจ ุชุญุฏูŠุฏ ู…ุนุฏู„ ุชุฑุงูƒู… ุงู„ุฏู‡ูˆู† ุจุงู„ุฌุณู… ูˆ ุชุญุฏูŠุฏ ู†ูˆุน ุชู†ุงุณู‚ ุงู„ู‚ูˆุงู… ูˆ ูƒูŠููŠุชู‡
ุฏ. ู…ุญู…ุฏ ุงู„ุฑูˆุจูŠ
ุงุณุชุดุงุฑู‰ ุฌุฑุงุญุงุช ุงู„ุชุฌู…ูŠู„ ุจุฌุงู…ุนุฉ ุนูŠู† ุดู…ุณ

Mohamed El-Rouby
21,603 Views ยท 2 years ago

ุชุถุฎู… ุงู„ุซุฏู‰ ุนู†ุฏ ุงู„ุฑุฌุงู„ ู…ู† ุงู„ู…ุดุงูƒู„ ุงู„ู…ู†ุดุฑุฉ ุฌุฏุง ุจูŠู† ุงู„ุดุจุงุจ ูˆ ุชุณุจุจ ุงู„ูƒุซูŠุฑ ู…ู† ุงู„ู…ุดุงูƒู„ ุงู„ู†ูุณูŠุฉ ูˆ ุงู„ุตุญูŠุฉ
ุฏ. ู…ุญู…ุฏ ุงู„ุฑูˆุจู‰
ุงุณุชุดุงุฑู‰ ุฌุฑุงุญุงุช ุงู„ุชุฌู…ูŠู„ - ุฌุงู…ุนุฉ ุนูŠู† ุดู…ุณ

Mohamed
17,473 Views ยท 2 years ago

This is a educational video for the prostate cancer patient and their family. Depending on the individual patient, a radical prostatectomy, might a procedure that your urologist could recommend as treatment.

Mohamed
15,565 Views ยท 2 years ago

Catheters and Long Lines are introduced in Neonates to administer fluid and Total Parentral Nutrition. The proceedure is not easy to perform and is prone to get infections.
Strict Aseptic technique is mandatory

Scott
43,488 Views ยท 2 years ago

Common Benign Pain Syndromes--Symptoms and Etiology:
1. Non-specific musculoskeletal pain: This is the most common cause of back pain. Patients present with lumbar area pain that does not radiate, is worse with activity, and improves with rest. There may or may not be a clear history of antecedent over use or increased activity. The pain is presumably caused by irritation of the paraspinal muscles, ligaments or vertebral body articulations. However, a precise etiology is difficulty to identify.
2. Radicular Symptoms: Often referred to as "sciatica," this is a pain syndrome caused by irritation of one of the nerve roots as it exits the spinal column. The root can become inflamed as a result of a compromised neuroforamina (e.g. bony osteophyte that limits size of the opening) or a herniated disc (the fibrosis tears, allowing the propulsus to squeeze out and push on the adjacent root). Sometimes, it's not precisely clear what has lead to the irritation. In any case, patient's report a burning/electric shock type pain that starts in the low back, traveling down the buttocks and along the back of the leg, radiating below the knee. The most commonly affected nerve roots are L5 and S1.
3. Spinal Stenosis: Pain starts in the low back and radiates down the buttocks bilaterally, continuing along the backs of both legs. Symptoms are usually worse with walking and improve when the patient bends forward. Patient's may describe that they relieve symptoms by leaning forward on their shopping carts when walking in a super market. This is caused by spinal stenosis, a narrowing of the central canal that holds the spinal cord. The limited amount of space puts pressure on the nerve roots when the patient walks, causing the symptoms (referred to as neurogenic claudication). Spinal stenosis can be congenital or develop over years as a result of djd of the spine. As opposed to true claudication (pain in calfs/lower legs due to arterial insufficiency), pain resolves very quickly when person stops walking and assumes upright position. Also, peripheral pulses should be normal.
4. Mixed symptoms: In some patients, more then one process may co-exist, causing elements of more then one symptom syndrome to co-exist.

Scott
19,350 Views ยท 2 years ago

Facial Tenderness
1. Ask the patient to tell you if these maneuvers causes excessive discomfort or pain. ++
2. Press upward under both eyebrows with your thumbs.
3. Press upward under both maxilla with your thumbs.
4. Excessive discomfort on one side or significant pain suggests sinusitis.

Sinus Trans illumination 1. Darken the room as much as possible. ++
2. Place a bright otoscope or other point light source on the maxilla.
3. Ask the patient to open their mouth and look for an orange glow on the hard palate.
4. A decreased or absent glow suggests that the sinus is filled with something other than air.

Temporomandibular Joint 1. Place the tips of your index fingers directly in front of the tragus of each ear. ++
2. Ask the patient to open and close their mouth.
3. Note any decreased range of motion, tenderness, or swelling.

Scott
13,946 Views ยท 2 years ago

new fundus camera for examining the retina without dilating the pupil

DrHouse
32,653 Views ยท 2 years ago

Ulnar head excision in a patient with rheumatoid arthritis who presented with painful and limited forearm rotation. Performed at the Queen Victoria Hospital, East Grinstead

Hieder Hieder
8,380 Views ยท 2 years ago

Arthrocentesis of the Knee

Hieder Hieder
2,528 Views ยท 2 years ago

Cricothyroidotomy NEJM

Scott
26,333 Views ยท 2 years ago

On Tuesday May 29th at 3:00pm EDT, University Hospitals Case Medical Center Cleveland, Ohio, will host a live webcast to demonstrate the removal of brain tumor and epileptic focus from an awake patient using intra-operative MRI and brain mapping. See this on OR-Live.com

The patient was a middle-aged gentleman with new onset seizures. An MRI showed what appeared to be a low grade glioma near the motor strip on the right. Studies have shown that complete removal can cure the seizures, improve quality of life and survival, but this is difficult to do with conventional technology without harming the surrounding normal brain because its difficult to determine where tumor ends and normal brain begins.

Scott
27,445 Views ยท 2 years ago

Hydatid Cyst Removal from the brain

Scott
12,540 Views ยท 2 years ago

brain scans with arachnoid cyst, pre and post operative

Scott
14,395 Views ยท 2 years ago

Endoscopic fenestration of arachnoid cyst in middle fossa

Mohamed
21,039 Views ยท 2 years ago

The complex circuitry interconnecting different areas in the brain, known collectively as white matter, is composed of millions of axons organized into fascicles and bundles. Upon macroscopic examination of sections of the brain, it is difficult to discern the orientation of the fibers. The same is true for conventional imaging modalities. However, recent advancements in magnetic resonance imaging (MRI) make such task possible in a live subject. By sensitizing an otherwise typical MRI sequence to the diffusion of water molecules it is possible to measure their diffusion coefficient in a given direction1. Normally, the axonal membrane and myelin sheaths pose barriers to the movement of water molecules and, thus, they diffuse preferentially along the axon2. Therefore, the direction of white matter bundles can be elucidated by determining the principal diffusivity of water. The three-dimensional representation of the diffusion coefficient can be given by a tensor and its mathematical decomposition provides the direction of the tracts3; this MRI technique is known as diffusion tensor imaging (DTI). By connecting the information acquired with DTI, three-dimensional depictions of white matter fascicles are obtained4. The virtual dissection of white matter bundles is rapidly becoming a valuable tool in clinical research.

Our journey begins with a transverse section of tightly packed axons as seen through light microscopy. Although represented as a two-dimensional "slice", we see that these axons in fact resemble tubes. A simulation of water molecules diffusing randomly inside the axons demonstrates how the membranes and myelin hinder their movement across them and shows the preferred diffusion direction --along the axons. The tracts depicted through DTI slowly blend in and we ride along with them. As we zoom out even more, we realize that it is a portion of the corpus callosum connecting the two sides of the brain we were traveling on and the great difference in relative scale of the individual axons becomes evident. The surface of the brain is then shown, as well as the rest of the white matter bundles--a big, apparently chaotic tangle of wires. Finally, the skin covers the brain.

With the exception of the simulated water molecules, all the data presented in the animation is obtained through microscopy and MRI. Computer algorithms for the extraction of the cerebral structures and a custom-built graphics engine make our journey through the brain's anatomy possible in a living person.

Micrograph courtesy of Dr. Christian Beaulieu, University of Alberta.
Music by Mario Mattioli.

References:
1. Stejskal, E.O., et al., J. Chem. Phys., 1965. 42:
2. Beaulieu, C., NMR Biomed., 2002. 15:435-55.
3. Basser, P.J., et al., J. Magn. Reson. B, 1994. 103:247-54.
4. Mori, S., et al., NMR Biomed., 2002. 15:468-80.




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