Lesson on clinical examination of a scaphoid fracture and assessment of the anatomic snuffbox. The scaphoid bone is one of the carpal bones of the wrist. A scaphoid fracture is important to rule out due to risk of avascular necrosis, which is a compromise of bone vasculature leading to death of the bone. Scaphoid fractures can occur with a FOOSH injury. In this lesson, we discuss the clinical assessment to rule out a scaphoid fracture, including assessing and localizing the anatomic snuffbox.

If you find this lesson helpful, please consider liking, subscribing, and clicking the notification bell to help support this channel and stay up-to-date on future lessons.

*Subscribe for more free medical lessons* https://www.youtube.com/channe....l/UCFPvnkCZbHfBvV8Ap

-------------------------------------------------------------------------------------------------------------
For books and more information on these topics
https://www.amazon.com/shop/jjmedicine

Support future lessons (and get other cool stuff) ➜ https://www.patreon.com/jjmedicine

Follow me on Twitter! ➜ https://twitter.com/JJ_Medicine

Come join me on Facebook! ➜ https://www.facebook.com/JJ-Me....dicine-1006426481611

Start your own website with BlueHost ➜ https://www.bluehost.com/track/jjmedicine/

Check out the best tool to help grow your YouTube channel (it’s helped me!)
https://www.tubebuddy.com/jjmedicine

-------------------------------------------------------------------------------------------------------------

Check out some of my other lessons.

Medical Terminology - The Basics - Lesson 1:
https://www.youtube.com/watch?v=04Wh2E9oNug

Fatty Acid Synthesis Pathway:
https://www.youtube.com/watch?v=WuQS_LpNMzo

Wnt/B Catenin Signaling Pathway:
https://www.youtube.com/watch?v=NGVP4J9jpgs

Upper vs. Lower Motor Neuron Lesions:
https://www.youtube.com/watch?v=itNd74V53ng

Lesson on the Purine Synthesis and Salvage Pathway:
https://www.youtube.com/watch?v=e2KFVvI8Akk

Gastrulation | Formation of Germ Layers:
https://www.youtube.com/watch?v=d6Kkn0SECJ4

Introductory lesson on Autophagy (Macroautophagy):
https://www.youtube.com/watch?v=UmSVKzHc5yA

Infectious Disease Playlist
https://www.youtube.com/playli....st?list=PLRjNoiRtdFw

Dermatology Playlist
https://www.youtube.com/playli....st?list=PLRjNoiRtdFw

Pharmacology Playlist
https://www.youtube.com/playli....st?list=PLRjNoiRtdFw

Hematology Playlist
https://www.youtube.com/playli....st?list=PLRjNoiRtdFw

Rheumatology Playlist
https://www.youtube.com/playli....st?list=PLRjNoiRtdFw

Endocrinology Playlist
https://www.youtube.com/playli....st?list=PLRjNoiRtdFw

Nephrology Playlist
https://www.youtube.com/playli....st?list=PLRjNoiRtdFw

----------------------------------------------------------------------------------------------------

**MEDICAL DISCLAIMER**: JJ Medicine does not provide medical advice, and the information available on this channel does not offer a diagnosis or advice regarding treatment. Information presented in these lessons is for educational purposes ONLY, and information presented here is not to be used as an alternative to a healthcare professional’s diagnosis and treatment of any person/animal.

Only a physician or other licensed healthcare professional are able to determine the requirement for medical assistance to be given to a patient. Please seek the advice of your physician or other licensed healthcare provider if you have any questions regarding a medical condition.

----------------------------------------------------------------------------------------------------

*Although I try my best to present accurate information, there may be mistakes in this video. If you do see any mistakes with information in this lesson, please comment and let me know.*

I am always looking for ways to improve my lessons! Please don't hesitate to leave me feedback and comments - all of your feedback is greatly appreciated! :) And please don't hesitate to send me any messages if you need any help - I will try my best to be here to help you guys :)

Thanks for watching! If you found this video helpful, please like and subscribe!
JJ

The video will describe anatomical structures as seen on a CT scan. Please see discalimer on my website.

Dental Braces Animation

Peristalsis, involuntary movements of the longitudinal and circular muscles, primarily in the digestive tract but occasionally in other hollow tubes of the body, that occur in progressive wavelike contractions. Peristaltic waves occur in the esophagus, stomach, and intestines.

Diverticulosis is a common gastrointestinal finding on colonoscopy

Adenocarcinoma of the Transverse Colon taken by Dr. Julio Murra Saca This is the case of a 42 year-old male, with no significant past medical history presented with abdominal pain and no weight loss was reported. Adenocarcinoma of the colon is a primary cause of mortality and
morbidity in North America and Western Europe. Colonic cancers are the most common GI carcinomas and have the best prognosis. The 5-year survival rate is approximately 50%.
Survival rates may be improved by screening and removal of adenomatous polyps. Almost all colonic cancers are primary adenocarcinomas.

Lipid-Lowering Agents HMG-CoA reductase inhibitors (statins) These agents inhibit the rate-limiting step in cholesterol biosynthesis by competitively inhibiting HMG-CoA reductase. Note the following: Low-density lipoprotein (LDL) reduction of 25%-60% Examples include Atorvastatin, fluvastatin, lovastatin, pitavastatin, pravastatin, rosuvastatin, simvastatin Contraindications include hypersensitivity, active liver disease, pregnancy, lactation, coadministration with strong CYP3A4 inhibitors (selected statins) Vitamin B3 Vitamin B3 inhibits very-low-density lipoprotein (VLDL) synthesis. Note the following: LDL reduction of 10% High-density lipoprotein (HDL) increase of 20% Example includes Niacin (nicotinic acid) Contraindications include hypersensitivity, liver disease, active peptic ulcer, severe hypotension, arterial bleeding Fibrates Fibrates enhance lipoprotein lipase, resulting in increased VLDL catabolism, fatty acid oxidation, and triglycerides elimination. They decrease hepatic extraction of free fatty acids. Note the following: LDL reduction of 15% Triglyceride reduction of 35% Examples include Gemfibrozil, fenofibrate, fenofibrate (micronized), fenofibric acid Contraindications include active liver disease, renal disease, primary biliary cirrhosis, gallbladder disease 2-Azetidiones These agents inhibit sterol transporter at brush border and, consequently, intestinal absorption of cholesterol. LDL reduction of 15% Example includes Ezetimibe Contraindications include hypersensitivity, coadministration with statins (if active liver disease) Bile acid sequestrants These agents lower cholesterol and LDL via bile duct sequestration. Note the following: LDL reduction of 15% Examples include Cholestyramine, colesevelam, colestipol Contraindications include biliary/bowel obstruction, serum triglycerides >300-500 mg/dL, history of hypertriglyceridemia-induced pancreatitis

An egg cannot be fertilized when there are no sperm in the semen. The testicles continue to produce sperm, but the sperm are reabsorbed by the body. (This also happens to sperm that are not ejaculated after a while, regardless of whether you have had a vasectomy.) Sperm are made in the testicles. They pass through two tubes called the vasa deferentia to other glands and mix with seminal fluids to form semen. Vasectomy blocks each vas deferens and keeps sperm out of the seminal fluid. The sperm are absorbed by the body instead of being ejaculated.

Christopher J. Rapuano, MD, Director of the Cornea Service at Wills Eye Institute describes his surgical approach of a Combined Penetrating Keratoplasty (PK) and Cataract Surgery

the motor milestones expected in typically developing babies, from head control to walking and what pediatricians look for during a well-baby visit. She also explains the specific types of motor control a baby must master before the next milestone can be achieved

Catheterization of the Male and Female

Roman Nowygrod, MD, a surgeon at NewYork-Presbyterian/Columbia University Medical Center, explains the different surgical approaches to treat Peripheral Arterial Disease (PAD).

Posterior Chest Examination from the USMLE collection

A video of examination of peripheral pulsations from the USMLE collection

Acromegaly is usually caused by a noncancerous tumor. Middle-aged adults are most commonly affected. Symptoms include enlargement of the face, hands, and feet. Prompt treatment is needed to avoid serious illness. Drugs can reduce the effects of growth hormone. If needed, surgery and radiation may be used to remove tumor cells.

The first operation is harvesting the heart from the donor. The donor is usually an unfortunate person who has suffered irreversible brain injury, called "brain death". Very often these are patients who have had major trauma to the head, for example, in an automobile accident. The victim's organs, other than the brain, are working well with the help of medications and other "life support" that may include a respirator or other devices. A team of physicians, nurses, and technicians goes to the hospital of the donor to remove donated organs once brain death of the donor has been determined. The removed organs are transported on ice to keep them alive until they can be implanted. For the heart, this is optimally less than six hours. So, the organs are often flown by airplane or helicopter to the recipient's hospital.

Cholelithiasis involves the presence of gallstones (see the image below), which are concretions that form in the biliary tract, usually in the gallbladder. Choledocholithiasis refers to the presence of 1 or more gallstones in the common bile duct (CBD).

This video clip shows an upper track endoscopy of A 75 year-old female, presented with severe adominal pain since three days. Endoscopy displays a deep ulcer at the lesser curvature of the stomach. This patient has a klatskin´s tumor (bile duct bifurcation).

lesions at the anterior skull base invading the paranasal area and the paracavernous area can be reached without brain retraction by the shown subfrontal approach. it enables to control the paranasal sinus, optic nerve, periorbital tissue, carotid artery and pituary gland. reconstruction is not easy... but cosmetically appealing. CSF leaks are rare with the use of fascia lata and tissucol ( fibrin glue). osseous reconstruction is done by microsrews and calciumpyrophosphate ( norian, synthes).