As one of the first pediatric centers in the United States to use a new state-of-the-art MRI machine designed especially for kids, Children's Hospital of Michigan continues to deliver world-class, patient-friendly health care. ~ Detroit Medical Center

Duke Sports Medicine Specialists Jocelyn Wittstein, MD, Janna Fonseca, ATC, and Michael Messer ,PT, present on Soccer Injury Prevention including Concussion Management and the 11+ program that significantly reduces ACL tear rates in soccer.

Multiple sclerosis (MS) involves an immune-mediated process in which an abnormal response of the body’s immune system is directed against the central nervous system (CNS). The CNS is made up of the brain, spinal cord and optic nerves. Within the CNS, the immune system causes inflammation that damages myelin — the fatty substance that surrounds and insulates the nerve fibers — as well as the nerve fibers themselves, and the specialized cells that make myelin. When myelin or nerve fibers are damaged or destroyed in MS, messages within the CNS are altered or stopped completely. Damage to areas of the CNS may produce a variety of neurological symptoms that will vary among people with MS in type and severity The damaged areas develop scar tissue which gives the disease its name – multiple areas of scarring or multiple sclerosis. The cause of MS is not known, but it is believed to involve genetic susceptibility, abnormalities in the immune system and environmental factors that combine to trigger the disease. People with MS typically experience one of four disease courses. There are over a dozen treatments to help modify the MS disease process.

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https://www.ninjanerd.org/lect....ure/hemodialysis-ncl

Ninja Nerds!
In this lecture Professor Kristin Beach, MSN, BSN, RN will be discussing Hemodialysis. Hemodialysis is a procedure where a dialysis machine and a special filter called an artificial kidney, or a dialyzer, are used to clean your blood. In order to receive dialysis, a minor surgery is performed to the arm to create an arteriovenous shunt.

Table of Contents:
0:00 Lab
0:07 Hemodialysis Introduction
0:27 Defining Hemodialysis
11:02 Dialysis: Pre-Procedure
14:52 Dialysis: Intra-Procedure
17:34 Dialysis: Post-Procedure
18:58 Complications
27:35 Comment, Like, SUBSCRIBE!

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The human brain is the command center for the human nervous system. It receives input from the sensory organs and sends output to the muscles. The human brain has the same basic structure as other mammal brains, but is larger in relation to body size than any other brains.

A Bone scan or bone scintigraphy is a nuclear scanning test to find certain abnormalities in bone which are triggering the bone's attempts to heal. It is primarily used to help diagnose a number of conditions relating to bones, including: cancer of the bone or cancers that have spread (metastasized) to the bone, locating some sources of bone inflammation (e.g. bone pain such as lower back pain due to a fracture), the diagnosis of fractures that may not be visible in traditional X-ray images, and the detection of damage to bones due to certain infections and other problems.

Nuclear medicine bone scans are one of a number of methods of bone imaging, all of which are used to visually detect bone abnormalities. Such imaging studies include magnetic resonance imaging (MRI), X-ray computed tomography (CT) and in the case of 'bone scans' nuclear medicine. However, a nuclear bone scan is a functional test, which means it measures an aspect of bone metabolism, which most other imaging techniques cannot. The nuclear bone scan competes with the FDG-PET scan in seeing abnormal metabolism in bones, but it is considerably less expensive.

Nuclear bone scans are not to be confused with the completely different test often termed a "bone density scan," DEXA or DXA, which is a low exposure X-ray test measuring bone density to look for osteoporosis and other diseases where bones lose mass, without any bone re-building activity. The nuclear medicine scan technique is sensitive to areas of unusual bone re-building activity because the radiopharmaceutical is taken up by osteoblast cells which build bone. The technique therefore is sensitive to fractures and bone reaction to infections and bone tumors, including tumor metastases to bones, because all these pathologies trigger bone osteoblast activity. The bone scan is not sensitive to osteoporosis or multiple myeloma in bones, and therefore other techniques must be used to assess bone abnormalities from these diseases.

Dr. Ebraheim’s educational animated video describing the anatomy and associated injuries of the knee joint.
Disrupted quadriceps
•Patient is unable to actively extend the knee.
The most common cause of ACL ruptures:
•Traumatic force being applied during twisting motion.
•Side stepping or landing from a jump.
Patient complains of:
•Immediate pain
•Knee giving way
•Swelling
Aspiration of the knee
•If aspiration of the knee joint shows evidence of blood within the joint there is 75-80% chance of ACL and meniscal injury.
Lachamn’s test- ACL knee exam
•Knee is flexed at 30 degrees.
•ACL tear of the knee is identified by pulling on the tibia and examining the frontward motion of the lower leg in comparison to the upper leg.
Radiological exam – ACL
•MRI of the knee joint shows bone lesions or bruising associated with tears of the ACL. Injury is found in the typical location; middle of the femoral condyle and posterior part of the tibia laterally.
Posterior cruciate ligament tear (PCL)
•Common cause of injury is a bent knee hitting a dashboard in a car accident.
Tibial Sag Test –PCL knee exam
Quadriceps active test-PCL knee exam
•The examiner stabilizes the leg of the patient and then the patient is asked to actively contract the quadriceps muscle.
•The tibia is seen actively reduced from the posterior subluxed position.
Lachman’s test-PCL knee exam
•Knee is bent 20-30 degrees.
•The posterior drawer test is carried out while the patient is in a supine position and the knee is flexed to 90 degrees.
•The amount of translation of the tibia relative to the femur is observed.
The dial test is performed while the patient is in the supine or prone position and both knees are in 90 and 30 degrees of flexion. More than 10 degrees of external rotation indicates significant injury.
Common meniscal tears
Symptoms include
•Knee pain
•Pain with straightening the knee
•Swelling
•Locking
•Weakness

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

giant systolic pulsations, known as C-V waves, were noticeable during jugular venous examination of a 33-year-old woman who had tricuspid-valve endocarditis. In video 2, transthoracic echocardiography revealed severe tricuspid regurgitation.

Functional endoscopic sinus surgery is a minimally invasive surgical treatment which uses nasal endoscopes to enlarge the nasal drainage pathways of the paranasal sinuses to improve sinus ventilation.

A video from Physical Exam Series of Loyola University Health System, Chicago showing the medical examination of the abdomen

each type of heart problem requires different treatment but may share similar warning signs. It is important to see your doctor so that you can receive a correct diagnosis and prompt treatment. Learn to recognize the symptoms that may signal heart disease. Call your doctor if you begin to have new symptoms or if they become more frequent or severe. Symptoms of Coronary Artery Disease The most common symptom of coronary artery disease is angina, or chest pain. Angina can be described as a discomfort, heaviness, pressure, aching, burning, fullness, squeezing, or painful feeling in your chest. It can be mistaken for indigestion or heartburn. Angina may also be felt in the shoulders, arms, neck, throat, jaw, or back. Other symptoms of coronary artery disease include: Shortness of breath Palpitations (irregular heart beats, or a "flip-flop" feeling in your chest) A faster heartbeat Weakness or dizziness Nausea Sweating

Watch that Skin Jiggers Removal Procedure

SPIDER Surgery-- Single Incision Gallbladder Removal

This animated video explains what is meant by astigmatism, which is a very common problem with the eyes.

The Human Body in Numbers.

mammoplasty, is a surgical enhancement procedure to accentuate the size and shape of a woman’s breasts. While breast augmentation will make the breasts larger, the surgery will not move the breasts closer together or lift sagging breasts. Breast augmentation is tremendous help to patients who desire a fuller profile, who have lost breast volume due to pregnancy or nursing, or who have undergone breast reconstruction and want to gain a more natural look again.

Massive PE causing hemodynamic instability (shock and/or low blood pressure, defined as a systolic blood pressure <90 mmHg or a pressure drop of 40 mmHg for >15 min if not caused by new-onset arrhythmia, hypovolemia or sepsis) is an indication for thrombolysis, the enzymatic destruction of the clot with medication.

Medical students at Johns Hopkins University are getting a real-life birthing experience when a robot goes into labor. Kasey-Dee Gardner reports.

Female Catheter Insertion