In PRK the epithelium (top layer of the cornea) is scraped off and then the laser treatment is applied. A contact lens is used as a "bandage" to decrease discomfort. The epithelium then grows back over the bare area during the next few days.

In LASEK the epithelium is exposed to 20% alcohol which helps separate epithelium from the cornea. The epithelium is pushed to one side and laser treatment applied. The epithelial layer is replaced back onto the eye and held in place with a contact lens. The contact lens is then removed a few days later. LASEK is hence a "no knife"/flap operation.

Epi-Lasik is a similar procedure that uses a keratome like that used for Lasik, but engineered to only separate the epithelium. The epithelium is left on a hinge, laser treatment applied and flap replaced.

This video demonstrates the approach to a large base of tongue tumor, which was invading the ramus of the mandible. The procedure, named after Dr. Trotter, is really a median labiomandibuloglossotomy. In this case this poorly differentiated tumor was resected along with a portion of the floor of mouth. The entire area was reconstructed with a pectoralis major myocutaneous flap.

Demonstration of the technique used to insert a drain using an air knot in the operating room.

You may have heard that some positions, such as your partner on top (missionary position), are better than others for getting pregnant. In fact, there's no evidence to back these theories up. Experts just haven't done the research yet. What experts have done, though, is use scanning to show what's going on inside when you're doing the deed. The research looked at two positions: the missionary position and doggy style. (Doggy style being when you're on all fours, and your partner enters you from behind). Common sense tells us that these positions allow for deep penetration. This means that they're more likely to place sperm right next to your cervix (the opening of your uterus). The scans confirm that the tip of the penis reaches the areas between the cervix and vaginal walls in both of these positions. The missionary position allows the penis to reach the area at the front of the cervix. The rear entry position reaches the area at back of the cervix. It's amazing what some experts spend their time doing, isn't it! Other positions, such as standing up, or woman on top, may be just as good for getting sperm right next to the cervix. We just don't know yet. http://www.babycentre.co.uk/sex-for-getting-pregnant#ixzz4XKnPLbxL

A grand mal seizure causes a loss of consciousness and violent muscle contractions. It's the type of seizure most people picture when they think about seizures. A grand mal seizure — also known as a generalized tonic-clonic seizure — is caused by abnormal electrical activity throughout the brain. Usually, a grand mal seizure is caused by epilepsy. But sometimes, this type of seizure can be triggered by other health problems, such as extremely low blood sugar, a high fever or a stroke. Many people who have a grand mal seizure never have another one and don't need treatment. But someone who has recurrent seizures may need treatment with daily anti-seizure medications to control and prevent future grand mal seizures

Infected Hernia Mesh Repair Surgery Video

Clogged leg arteries can be opened through a minimally invasive procedure with the SILVERHAWK, a mini drill with a tiny rotating blade for cutting away plaque. The procedure only involves a tiny puncture in the patient's groin. ~ Detroit Medical Center

DMC Huron Valley-Sinai Hospital offers hope for severe sinus sufferers through new image-guided surgery that opens up passages, allowing freer breathing and higher quality of life. See two patients who have undergone the procedure and hear about their new lease on life. ~ Detroit Medical Center

At Children's Hospital, Dr. Mary Bedard and the NICU nursing staff save the life of a tiny infant struggling from a serious intestinal infection. ~ Detroit Medical Center

When Does Implantation Occur in Pregnancy? || Common gynaecological problems in women There are a lot of things going on in early pregnancy. The first thing that you need to understand is the menstrual cycle. A good understanding of this can help you understand how the other parts play into the process. A huge part of the menstrual cycle that is the basis of pregnancy is ovulation. Ovulation typically occurs fourteen days prior to the beginning of menstruation, the point when the uterine lining is sloughed off if no pregnancy has occurred.

Indwelling urinary catheters are commonly used in hospitals and can lead to preventable catheter-associated UTI. How can rates of catheter-associated UTI be reduced in hospitals? New research findings are summarized in a new NEJM Quick Take. Learn more at http://nej.md/1WoeHdF SHOW MORE

Obstructive lung disease is a category of respiratory disease characterized by airway obstruction. Many obstructive diseases of the lung result from narrowing of the smaller bronchi and larger bronchioles, often because of excessive contraction of the smooth muscle itself. It is generally characterized by inflamed and easily collapsible airways, obstruction to airflow, problems exhaling and frequent medical clinic visits and hospitalizations. Types of obstructive lung disease include; asthma, bronchiectasis, bronchitis and chronic obstructive pulmonary disease (COPD). Although COPD shares similar characteristics with all other obstructive lung diseases, such as the signs of coughing and wheezing, they are distinct conditions in terms of disease onset, frequency of symptoms and reversibility of airway obstruction.[1] Cystic fibrosis is also sometimes included in obstructive pulmonary disease

Is that knee pain just a sprain or a more serious ACL injury? Orthopedic surgeon Paul Fadale, M.D., offers tips on how to tell the difference. http://www.orthopedicsri.org/

VirtaMed's new laparoscopy simulator starts with patient safety.

VirtaMed LaparoS™
-Starts at the beginning and covers crucial procedure preparation steps
- Innovative skills training derived from validated concepts
- Start with patient safety: abdomen positioning and trocar placement
- Covers crucial procedure preparation steps

Numerous medical training institutions have found that integrating simulation into their curriculum both improves training outcomes and ultimately supports better patient care. Benefit from VirtaMed’s decades of experience and expertise in laparoscopy training and education.

An animation showing vaginal childbirth (delivery)

When your child needs surgery, it can be overwhelming and sometimes scary. At Mayo Clinic Children’s Center, our highly skilled surgeons apply deep experience and specialized training to offer individualized care for your child and your family.

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]