Top videos

Fundus Exam
Fundus Exam Scott 46,815 Views • 3 years ago

Level of fundus and exam

Contraction of the heart
Contraction of the heart samer kareem 12,811 Views • 3 years ago

Premature ventricular contractions (PVCs) are extra, abnormal heartbeats that begin in one of your heart's two lower pumping chambers (ventricles). These extra beats disrupt your regular heart rhythm, sometimes causing you to feel a flip-flop or skipped beat in your chest.

Situs Inversus
Situs Inversus samer kareem 7,220 Views • 3 years ago

Situs inversus is a condition in which the arrangement of the internal organs is a mirror image of normal anatomy. It can occur alone (isolated, with no other abnormalities or conditions) or it can occur as part of a syndrome with various other defects. Congenital heart defects are present in about 5-10% of affected people. The underlying cause and genetics of situs inversus are complex. Familial cases have been reported.[1][2]

Western Blot HIV Test
Western Blot HIV Test samer kareem 5,111 Views • 3 years ago

The window period is the time from infection until a test can detect any change. The average window period with HIV-1 antibody tests is 25 days for subtype B. Antigen testing cuts the window period to approximately 16 days and nucleic acid testing (NAT) further reduces this period to 12 days.[2] Performance of medical tests is often described in terms of: sensitivity: The percentage of the results that will be positive when HIV is present specificity: The percentage of the results that will be negative when HIV is not present. All diagnostic tests have limitations, and sometimes their use may produce erroneous or questionable results. False positive: The test incorrectly indicates that HIV is present in a non-infected person. False negative: The test incorrectly indicates that HIV is absent in an infected person.

Minimally invasive plate osteosynthesis in the treatment of the femoral shaft fracture
Minimally invasive plate osteosynthesis in the treatment of the femoral shaft fracture samer kareem 1,242 Views • 3 years ago

Our results in this study of MIPO treated with conventional plates are comparable to the results of the femoral shaft fractures treated with intramedullary nailing. The technique can be used for all femoral shaft fractures. Although the biomechanics of the plate fixation are less stable compared to the intamedullary nail, the mechanical stability is stable enough for bone healing. Healing was rapid, and postoperative care was simplified. The two major complications were malalignment and screw breakage. We recommend using at least three separated screws in each fragment to prevent stress on the screw and screw breakage. Intraoperative limb length, axial alignment, and rotation must be carefully assessed to prevent malalignment. The limitations of our study include lack of a comparison group, retrospective data collection, and no randomisation in outcome evaluation

Neurotransmission
Neurotransmission samer kareem 1,510 Views • 3 years ago

Ca2+ binds with the membrane of the synaptic vesicles, which causes the vesicles to break and release the neurotransmitter into the synaptic cleft. After the neurotransmitters are released, they diffuse across the synaptic cleft and interact with receptors on the postsynaptic membrane. When the action potential reaches the presynaptic terminal, it provokes the release of a small quantity of neurotransmitter molecules, which bind to chemical receptor molecules located in the membrane of another neuron, the postsynaptic neuron, on the opposite side of the synaptic cleft.

Sneezingng mechanismIn
Sneezingng mechanismIn samer kareem 1,461 Views • 3 years ago

A sneeze, or sternutation, is a semi-autonomous, convulsive expulsion of air from the lungs through the nose and mouth, usually caused by foreign particles irritating the nasal mucosa

Macular translocation
Macular translocation samer kareem 9,878 Views • 3 years ago

The fovea was moved 425 to 1,700 microm (965+/-262 microm) superiorly or inferiorly. Follow-up time was 2 to 12 months (median 8 months). Complications included macular pucker (3 eyes), subfoveal hemorrhage (2 eyes), macular hole (1 eye), and progression of cataract in phakic eyes (3 eyes). Thirteen of 20 eyes showed various degrees of proliferative vitreoretinopathy with epiretinal membrane formation over the inferior peripheral retina with the inferior retinal detachment stabilized by the silicone oil. One eye progressed to phthisis bulbi. Initial visual acuity ranged from 20/80 to 20/800 (median 20/150) and final visual acuity ranged from light perception to 20/200 (median 20/1000).

Carpal Tunnel Release Procedure
Carpal Tunnel Release Procedure Surgeon 58,007 Views • 3 years ago

Carpal tunnel surgery, also called carpal tunnel release (CTR) and carpal tunnel decompression surgery, is a surgery in which the transverse carpal ligament is divided. It is a treatment for carpal tunnel syndrome and recommended when there is static (constant, not just intermittent) numbness, muscle weakness, or atrophy, and when night-splinting no longer controls intermittent symptoms of pain in the carpal tunnel. In general, milder cases can be controlled for months to years, but severe cases are unrelenting symptomatically and are likely to result in surgical treatment.

Hypothyroidism
Hypothyroidism samer kareem 1,207 Views • 3 years ago

Hypothyroidism is a condition in which the body lacks sufficient thyroid hormone. Since the main purpose of thyroid hormone is to "run the body's metabolism," it is understandable that people with this condition will have symptoms associated with a slow metabolism. The estimates vary, but approximately 10 million Americans have this common medical condition. In fact, as many as 10% of women may have some degree of thyroid hormone deficiency. Hypothyroidism is more common than you would believe, and millions of people are currently hypothyroid and don't know it.

Syphilis Test procedure
Syphilis Test procedure Dave Sanders 5,845 Views • 3 years ago

How to use a Syphilis rapid test kit for self-diagnosis of Syphilis (fingerstick blood). Convenient, Easy to Use, and over 99% Accurate. Certified GMP and ISO13485. Test yourself at home with Complete Privacy. Buy online today at: http://www.stdrapidtest.com

MRI of Cervical Stenosis
MRI of Cervical Stenosis samer kareem 2,294 Views • 3 years ago

Cervical Stenosis Cervical Spinal Stenosis Video Spinal stenosis pain in the neck is called cervical spinal stenosis. This condition means that there is potential compression of the spinal cord. Unfortunately, the spinal cord compression can lead to serious problems such as extreme weakness, or even paralysis. With cervical stenosis, anyone who develops signs of spinal cord compression (myelopathy) may need more invasive treatment, such as surgery.

Diverticula, diverticulosis, & diverticulitis
Diverticula, diverticulosis, & diverticulitis samer kareem 6,680 Views • 3 years ago

What are diverticula? Diverticula are outpouchings that most commonly happen in the sigmoid colon of the large intestine. The presence of a diverticulum is defined as diverticulosis, whereas diverticulitis describes an inflamed diverticulum

Hand Transplant Surgical Procedure
Hand Transplant Surgical Procedure samer kareem 2,146 Views • 3 years ago

Not every person who is missing a hand or upper limb might be eligible to receive a transplant. Many people are able to live full lives and accomplish everything they desire with the aid of a prosthetic device and sometimes without the aid of anything. However, some people find prosthetics difficult to use and the lack of sensory “feedback” from their prosthesis can significantly limit their function. These persons may consider reconstructive transplantation. We find that those patients who have either bilateral (both hands) amputations or those who have had their dominant hand amputated are likely to receive the most benefit from the procedure. However, we will provide information to any interested person regardless of the nature of their amputation.

Laparoscopic Left Adrenalectomy
Laparoscopic Left Adrenalectomy Mohamed Ibrahim 11,933 Views • 3 years ago

laparoscopic left adrenalectomy in 150kg patient with Cushings

Surgery without Stitches
Surgery without Stitches Mohamed Ibrahim 10,287 Views • 3 years ago

A thin polymer film that seals surgical wounds could make sutures a relic of medical history.

Measuring just 50 microns, the film is placed on a surgical wound and exposed to an infrared laser, which heats the film just enough to meld it and the tissue, thus perfectly sealing the wound. Known as Surgilux, the device's raw material is extracted from crab shells and has Food and Drug Administration approval in the US

Chronic Myeloid Leukemia Diagnosis and Treatment
Chronic Myeloid Leukemia Diagnosis and Treatment Harvard_Student 7,590 Views • 3 years ago

Chronic Myeloid Leukemia Diagnosis and Treatment

Wegener granulomatosis and microscopic polyangiitis
Wegener granulomatosis and microscopic polyangiitis samer kareem 10,008 Views • 3 years ago

Microscopic polyangiitis (MPA) is vasculitis of small vessels. It was initially considered as a microscopic form of polyarteritis nodosa (PAN). In 1990, the American College of Rheumatology developed classification criteria for several types of systemic vasculitis but did not distinguish between polyarteritis nodosa and microscopic polyarteritis nodosa. [1] In 1994, a group of experts held an international consensus conference in Chapel Hill, North Carolina, to attempt to redefine the classification of small vessel vasculitides. [2, 3]

Surgical Cricothyrotomy
Surgical Cricothyrotomy Mohamed Ibrahim 14,799 Views • 3 years ago

Brief animation demonstrating emergency surgical cricothyrotomy; created with Lightwave 9.3

Aplastic anemia: causes, diagnosis and managment
Aplastic anemia: causes, diagnosis and managment samer kareem 1,344 Views • 3 years ago

Aplastic anemia is a hematopoietic disorder caused due to T lymphocyte mediated destruction of stem cells resulting in pancytopenia with a cellular bone marrow and normal cell cytogenetics. The causes of aplastic anaemia may be inherited or acquired. The causes and the diagnostic approach, along with spectrum of severity of this disorder is discussed in this presentation. A detailed discussion of the management options, along with pharmacological therapy and supportive therapy in these cases is also discussed. The treatment options include, in addition to a stem cell transplant, anti-thymocyte globulin, cyclosporine, methyprednisolone and eltrombopag (for patients who have failed treatment on combined modality therapy with ATG and cyclosporine)

Showing 74 out of 359