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The most-watched medical videos on MedicalVideos.com — ranked by views from our community of medical students, healthcare professionals, and patients learning how the body works.

Case of Multiple Ulcers
Case of Multiple Ulcers Scott 17,150 Views • 3 years ago

A 76 year-old, female, presented with a three day history of melena without any abdominal pain. She had one episode of hematemesis (about 100 ml blood) in the emergency room, patient has a strong alcoholic drink abuse.
An upper endoscopy with magnification was performed.
multiple ulcers were detected across of the gastric camera,
esophageal varices was also detected

Obesity in Children
Obesity in Children DrMDK 17,104 Views • 3 years ago

Henry Anhalt DO FAAP
Ped Eddo

Spirotome Bone biopsy for osteolytic lesions under CT guidance
Spirotome Bone biopsy for osteolytic lesions under CT guidance JJANSSENS 17,100 Views • 3 years ago

Soft tissue biopsy from osteolytic lesions is a challenge for the interventionist. The Spirotome Bone is conceived for this intervention. The procedure is straigthforward and produces tissue specimens of high quality in sufficient amounts to allow quantitative molecular biology.

Ganglion Cyst Surgical Removal
Ganglion Cyst Surgical Removal samer kareem 17,091 Views • 3 years ago

Ganglion Cyst Surgical Removal

Pulmonary Artery
Pulmonary Artery M_Nabil 17,062 Views • 3 years ago

Pulmonary Artery

Ear Webers Test USMLE
Ear Webers Test USMLE USMLE 17,053 Views • 3 years ago

Ear Weber's Test from the USMLE collection

Uterine Fibroid Embolization Treatment
Uterine Fibroid Embolization Treatment samer kareem 17,043 Views • 3 years ago

Uterine fibroid embolization (UFE), also known as uterine artery embolization, is a minimally invasive procedure that is performed by an Interventional Radiologist (IR), a doctor who uses advanced imaging technology to see inside the body without surgery. UFE is often performed as an outpatient service and offers a much shorter recovery time than surgery. For more information on uterine fibroids and all your treatment options, including UFE,

Intra Uterine Device Insertion For Birth Control
Intra Uterine Device Insertion For Birth Control Scott 17,042 Views • 3 years ago

An intrauterine device (IUD), also known as intrauterine contraceptive device (IUCD or ICD) or coil, is a small, often T-shaped birth control device that is inserted into a woman's uterus to prevent pregnancy. IUDs are one form of long-acting reversible birth control (LARC).

Throat Removal Medical Surgery
Throat Removal Medical Surgery hooda 17,038 Views • 3 years ago

Watch that Thyroid Removal Surgery

Hernias Examination
Hernias Examination samer kareem 17,037 Views • 3 years ago

The examination of the groin, hernial orifices and male external genitalia are clinical examinations which undergraduate medical students are commonly less confident about performing competently, due to the lack of clinical exposure.

DMC Children's Hospital of Michigan
DMC Children's Hospital of Michigan Emery King 17,031 Views • 3 years ago

DMC Children's Hospital of Michigan -- where everything we do is just for them. ~ Detroit Medical Center

Mohs Surgery Procedure Demonstrated
Mohs Surgery Procedure Demonstrated Richard DeAngelis 17,021 Views • 3 years ago

This is a 4 minute video depicting the basic technique of the Mohs micrographic procedure and how the tissue is processed in the lab. Visit us @ www.skincancercentre.com

Lasik Eye Surgery Videos
Lasik Eye Surgery Videos Emery King 17,015 Views • 3 years ago

Lasik eye surgery at the Detroit Medical Center's Advanced Laser and Clear Vision Center offer patients pain-free, life-changing procedures that correct nearsightedness, farsightedness, and astigmatism. ~ Detroit Medical Center

Mechanism of Cisplatin Anti-Cancer Drug
Mechanism of Cisplatin Anti-Cancer Drug Scott Stevens 17,005 Views • 3 years ago

Cisplatin is in a class of drugs known as platinum-containing compounds used to treat various types of cancers including metastatic testicular and ovarian tumors. The molecule was first discovered in 1845, but did not receive FDA approval until 1978. Today it is known as the "penicillin of cancer drugs," because it is so effective for many different cancers. There are three key players involved in Cisplatin's mechanism: (1) Cisplatin, (2) DNA (3) and an HMG Protein. Most Cisplatin enters the body through active transport, but some molecules are passively defused through the cell membrane. Once in the nucleus, Cisplatin can form an adduct with two consecutive guanine bases within a strand of DNA. The molecule loses its chlorine atoms in exchange for the nitrogen atoms of the target guanines. Cisplatin can bond more tightly with nitrogen because nitrogen balances the platinum charge more effectively than chlorine. It is this adduct-induced DNA bend that allows binding of proteins which contain the high mobility group, HMG domain. Once the protein is bound to the DNA, it inserts a wedge-like phenyl group of phenylalanine 37 into the widened minor groove created by the bend. The tightly bound HMG protein causes destacking of the nucleotide bases, resulting in the DNA helix becoming kinked. In this way, Cisplatin can be thought of as a monkey wrench in the DNA repair system. With the HMG protein bound to the DNA, the modified strand is not repaired properly and so the cell dies. The success of Cisplatin depends on its ratio of efficacy between cancerous and healthy cells.

How to Start an IV
How to Start an IV DrHouse 17,005 Views • 3 years ago

Starting an IV

Laparoscopic Release of Celiac Artery Compression
Laparoscopic Release of Celiac Artery Compression Doctor 16,999 Views • 3 years ago

J Vasc Surg. 2009 Jul;50(1):134-9. Celiac artery compression syndrome managed by laparoscopy. Baccari P, Civilini E, Dordoni L, Melissano G, Nicoletti R, Chiesa R. Department of General Surgery, Scientific Institute San Raffaele University Hospital, Milan, Italy. [email protected] Abstr...

act OBJECTIVE: Celiac artery compression syndrome (CACS) is an unusual condition caused by abnormally low insertion of the median fibrous arcuate ligament and muscular diaphragmatic fiber resulting in luminal narrowing of the celiac trunk. Surgical treatment is the release of the extrinsic compression by division of the median arcuate ligament overlying the celiac axis and skeletonization of the aorta and celiac trunk. The laparoscopic approach has been recently reported for single cases. Percutaneous transluminal angioplasty (PTA) and stenting of the CA alone, before or after the surgical relief of external compression to the celiac axis, has also been used. We report our 7-year experience with the laparoscopic management of CACS caused by the median arcuate ligament. METHODS: Between July 2001 and May 2008, 16 patients (5 men; mean age, 52 years) were treated. Diagnosis was made by duplex ultrasound scan and angiogram (computed tomography [CT] or magnetic resonance). The mean body mass index of the patients was 21.2 kg/m(2). One patient underwent laparoscopic surgery after failure of PTA and stenting of the CA, and two patients after a stenting attempt failed. RESULTS: All procedural steps were laparoscopically completed, and the celiac trunk was skeletonized. The laparoscopic procedures lasted a mean of 90 minutes. Two cases were converted to open surgery for bleeding at the end of the operation when high energies were used. The postoperative course was uneventful. Mean postoperative hospital stay was 3 days. On follow-up, 14 patients remained asymptomatic, with postoperative CT angiogram showing no residual stenosis of the celiac trunk. One patient had restenosis and underwent aortoceliac artery bypass grafting after 3 months. Another patient had PTA and stenting 2 months after laparoscopic operation. All patients reported complete resolution of symptoms at a mean follow-up of 28.3 months. CONCLUSIONS: The laparoscopic approach to CACS appears to be feasible, safe, and successful, if performed by experienced laparoscopic surgeons. PTA and stenting resulted in a valid complementary procedure only when performed after the release of the extrinsic compression on the CA. Additional patients with longer follow-up are needed.

subfrontal approach to the anterior skull base
subfrontal approach to the anterior skull base M_Nabil 16,997 Views • 3 years ago

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).

One Handed Knot Tie with Right Hand
One Handed Knot Tie with Right Hand Surgeon 16,991 Views • 3 years ago

One Handed Knot Tie with Right Hand

Bunion Hallux Abductor Valgus Surgery
Bunion Hallux Abductor Valgus Surgery Scott 16,979 Views • 3 years ago

A "Hallux Valgus" or "Hallux Abducto-Valgus" deformity, is commonly referred to as a "Bunion." This describes a pathological condition involving the position of the "hallux" in relation to the first metatarsal.

A bunion deformity can clinically present with a variety of characteristics. The foot itself may present with a wide splaying of the forefoot and a painful bump on the medial aspect of the first metatarsal phalangeal joint. In addition, the hallux may be abducted from the midline of the body, with a valgus rotation in the frontal plane.

A radiographic analysis of a bunion deformity in the Anterior/Posterior or Dorsal/Plantar view will reveal a variety of pathological components. Most notably so, is the exaggerated inter-metatarsal angle between the first and second metatarsal. This may be accompanied by a displacement of the first metatarsal from its position over the sesamoids, such that the metatarsal demonstrates a medial alignment away from the sesamoids which lie to the lateral side.

In some cases, the proximal articular set angle at the head of the first metatarsal may be off-set. This "PASA" is one of the factors which determines the position of the proximal phalanx on the metatarsal during movement as well as at rest.

Although conservative care may involve shoe modifications, padding, strapping, and custom orthosis; surgical reconstruction may be required to alleviate painful and immobilizing bunion conditions.

Soft tissue components of the bunion deformity are primarily addressed by means of a capsular modification, as well as a tenotomy of the adductor tendon at its insertion on the base of the proximal phalanx. The fibular sesamoid may be repositioned by a release of the surrounding ligaments.

Surgical management of the bone or osseous components of a bunion deformity will commonly include an osteotomy and correction to re-establish a more functional position of the first metatarsal within the forefoot. This capital fragment of bone is held in place with hardware fixation in order to secure a proper alignment during the healing phase, thus allowing the hallux to return to a more functionally useful position in the sagittal plane.

Warning: Diabetic Ulcer Debridement
Warning: Diabetic Ulcer Debridement Scott 16,971 Views • 3 years ago

Debridement is the removal of necrotic tissue, foreign debris, bacterial growth, callus, wound edge, and wound bed tissue from chronic wounds in order to stimulate the wound healing process. Stimulation of wound healing mediated by debridement is thought to occur by the conversion of a chronic non-healing wound environment to an acute healing environment through the removal of cells that are not responsive to endogenous healing stimuli. Debridement is used commonly in standard wound treatment of diabetic foot ulcers (DFUs). Methods of debridement include surgery (sharp debridement), chemical debridement (antiseptics, polysaccharide beads, pastes), autolytic (hydrogels, hydrocolloids and transparent films), biosurgery (maggots), mechanical (hydrodebridement), and biochemical debridement (enzyme preparations). Callus is a buildup of keratinized skin formed under conditions of repeated pressure or friction and may contribute to ulcer formation by creating focal areas of high plantar pressure. The debridement of callus has been proposed to be relevant for both treatment and prevention of DFU. The purpose of this report is to retrieve and review existing evidence of comparative clinical effectiveness of different methods of debridement for the treatment of DFUs. Additionally examined in this report is the clinical effectiveness for treatment and prevention of DFU using callus debridement. Cost-effectiveness, and existing debridement guidelines for the treatment of DFUs will also be reviewed.

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