During normal sleep, you cycle through REM and four stages of non-REM (NREM) sleep numerous times a night. Stage 1 of NREM sleep is the lightest, while stage 4 is the deepest. When you're repeatedly interrupted and can't cycle normally through these types and stages of sleep, you may feel tired, fatigued, and have trouble concentrating and paying attention while you're awake. Sleepiness puts you at greater risk for car wrecks and other accidents.

This video: Polycystic ovary syndrome (PCOS) is a common endocrine disorder among women of reproductive age. Women with PCOS may have enlarged ovaries that contain small collections of fluid — called follicles — located in each ovary as seen during an ultrasound exam. Infrequent or prolonged menstrual periods, excess hair growth, acne, and obesity can all occur in women with polycystic ovary syndrome. In adolescents, infrequent or absent menstruation may raise suspicion for the condition. The exact cause of polycystic ovary syndrome is unknown. Early diagnosis and treatment along with weight loss may reduce the risk of long-term complications, such as type 2 diabetes and heart disease.

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

This is an animation of the biomechanics involved in relocating a dislocated shoulder.

we use a single, tapered PDT dilator and kit . All the equipment and supplies listed must be present at the bed-side, because there is no time to go looking for supplies if an airway emergency occurs during the procedure. Two teams are used simultaneously. One team manages the endo-tracheal tube, and the other manages the placement of the tracheostomy tube

Scissor gait is a form of gait abnormality primarily associated with spastic cerebral palsy.

A hemolytic transfusion reaction is a serious complication that can occur after a transfusion of blood. The red blood cells that were given in the transfusion are destroyed by the patient's immune system. There are other types of allergic transfusion reactions that do not cause hemolysis.

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. paolo.baccari@hsr.it 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.

Simple microinstruments and a medical school laboratory microscope were used for anastomosis training. Chicken blood vessels were used as a material for this study. A long segment of blood vessel from the proximal brachial artery to the distal radial artery was used for training. End-to-side anastomosis was practiced first, and the training continued with end-to-end anastomosis of the appropriate segments.

Watch that video to know the Serious Side Effects of STEROIDS on Human Body

Hemophilia A, also called factor VIII (FVIII) deficiency or classic hemophilia, is a genetic disorder caused by missing or defective factor VIII, a clotting protein. Although it is passed down from parents to children, about 1/3 of cases are caused by a spontaneous mutation, a change in a gene. According to the US Centers for Disease Control and Prevention, hemophilia occurs in approximately 1 in 5,000 live births. There are about 20,000 people with hemophilia in the US. All races and ethnic groups are affected. Hemophilia A is four times as common as hemophilia B while more than half of patients with hemophilia A have the severe form of hemophilia.

Laser- Removal of Salivary Stone

ransjugular intrahepatic portosystemic shunt (TIPS) is a procedure to create new connections between two blood vessels in your liver. You may need this procedure if you have severe liver problems.

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

Watch that Above Knee Leg Amputation Surgery

New Treatment for sinusitis. Yamik procedure

A fractured rib is usually a result of a fall or accident. Prolonged coughing and sports with repetitive movement, such as golf, also can cause a rib fracture. Symptoms include pain when taking a deep breath, pressing on the injured area, or bending or twisting the body. In most cases, fractured ribs usually heal on their own in one or two months. Pain relievers can make it easier to breathe deeply.

Alpha blockers relax certain muscles and help small blood vessels remain open. They work by keeping the hormone norepinephrine (noradrenaline) from tightening the muscles in the walls of smaller arteries and veins, which causes the vessels to remain open and relaxed. This improves blood flow and lowers blood pressure.

Genes are the building blocks of heredity. They are passed from parent to child. They hold DNA, the instructions for making proteins. Proteins do most of the work in cells. They move molecules from one place to another, build structures, break down toxins, and do many other maintenance jobs. Sometimes there is a mutation, a change in a gene or genes. The mutation changes the gene's instructions for making a protein, so the protein does not work properly or is missing entirely. This can cause a medical condition called a genetic disorder. You can inherit a gene mutation from one or both parents. A mutation can also happen during your lifetime.