Pregnancy ultrasounds are performed mainly using transabdominal ultrasound. For many women, especially after 8 weeks gestation, sufficient information about the baby may be obtained with transabdominal ultrasound only. However, in the early pregnancy, the developing embryo is very small (at 6 weeks gestation, the baby is only 5-9mm long) and a transvaginal ultrasound may be required to get a better image of the baby. Transvaginal ultrasound is safe and commonly performed during all stages of pregnancy, including the first trimester. It will not harm you or your baby.

A Medical Video showing an overview of the endocrine and gland system of the human body

The heart receives its own supply of blood from the coronary arteries. Two major coronary arteries branch off from the aorta near the point where the aorta and the left ventricle meet. These arteries and their branches supply all parts of the heart muscle with blood.

How Does a Bone Heal? All broken bones go through the same healing process. This is true whether a bone has been cut as part of a surgical procedure or fractured through an injury. The bone healing process has three overlapping stages: inflammation, bone production and bone remodeling. Inflammation starts immediately after the bone is fractured and lasts for several days. When the bone is fractured, there is bleeding into the area, leading to inflammation and clotting of blood at the fracture site. This provides the initial structural stability and framework for producing new bone. Diagram of inflammation in a fractured bone Bone production begins when the clotted blood formed by inflammation is replaced with fibrous tissue and cartilage (known as soft callus). As healing progresses, the soft callus is replaced with hard bone (known as hard callus), which is visible on x-rays several weeks after the fracture. Bone remodeling, the final phase of bone healing, goes on for several months. In remodeling, bone continues to form and becomes compact, returning to its original shape. In addition, blood circulation in the area improves. Once adequate bone healing has occurred, weightbearing (such as standing or walking) encourages bone remodeling.​

Dr. Chadrick Denlinger, MUSC transplant surgeon, describes what must take place when a patient receives a lung transplant.

Pathology: Previous spinal cord injury, diabetes, renal failure, dynamic knee contracture, open left ankle disarticulation for sepsis and severe foot infection

urgical management of proximal humerus fractures may be categorized either according to fracture type (eg, Neer type, anatomic type, greater tuberosity, surgical neck, anatomic neck, articular surface, lesser tuberosity fragments) or according to method of fixation (eg, closed reduction with no fixation, percutaneous fixation, open reduction with internal fixation [ORIF], humeral head replacement associated with tuberosity fixation

Hirschsprung's (HIRSH-sproongz) disease is a condition that affects the large intestine (colon) and causes problems with passing stool. The condition is present at birth (congenital) as a result of missing nerve cells in the muscles of the baby's colon. A newborn who has Hirschsprung's disease usually can't have a bowel movement in the days after birth. In mild cases, the condition might not be detected until later in childhood. Uncommonly, Hirschsprung's disease is first diagnosed in adults.

HD Hip Replacement Surgery

There are two main purposes of an arterial line. Firstly when patients are very sick an arterial line is inserted to provide constant monitoring and recording of the patient's blood pressure. Secondly some patients require frequent blood tests and the arterial line provides easy access to a patient's blood.

The urinary bladder is a hollow muscular organ that collects urine from the kidneys before disposal by urination. A hollow muscular, and distensible (or elastic) organ, the bladder sits on the pelvic floor. Urine enters the bladder via the ureters and exits via the urethra.

how do you know if I have a clogged duct or mastitis? You'll always have a clogged duct before you have mastitis and sometimes mastitis can be prevented if you jump on it fast enough. A clogged duct may be red, it can be a tender lump on one side or the other, just feel a little bit painful in one area when you nurse, and the best thing to do is apply warm compresses especially before nursing, massage the area from your armpit down towards the nipple, and then nurse your baby. The goal is to unclog that duct, get your baby to fully empty the breast, and hopefully it will prevent an infection. An infection or mastitis develops if the clogged duct isn't unclogged and bacteria start to harbor and grow and then you have an infection. Symptoms can be the same as a clogged duct as far as how the breasts feel. You might notice a red tender area or a lump. In addition to that you usually do have a fever or flu-like symptoms or just have generalized malaise, and fatigue, and aches. If you feel this way, call your doctor as soon as possible because it requires treatment. An antibiotic is the treatment as well as drinking lots of fluids and nursing your baby as frequently as possible. The milk that comes from the clogged duct is not harmful for your baby but sometimes it tastes a little extra salty and babies refuse it. If that's the case be sure to pump so that you're emptying your breast frequently. The more frequently you empty your breast the quicker you'll get over the infection. Also, of course, taking the antibiotics your doctor has prescribed and be sure to finish the entire course. If you have any other questions for me in the future feel free to ask them on our Facebook page at Facebook.com/IntermountainMoms and recommend us to your friends and family too.

Multiple myeloma is a cancer formed by malignant plasma cells. Normal plasma cells are found in the bone marrow and are an important part of the immune system.

Upper gastrointestinal bleeding (sometimes upper GI, UGI bleed, Upper gastrointestinal hemorrhage, gastrorrhagia) refers to bleeding in the upper gastrointestinal tract, commonly defined as bleeding arising from the esophagus, stomach, or duodenum. In fact, the proportion of UGIB cases caused by peptic ulcer disease has declined, a phenomenon that is believed to be due to the use of proton pump inhibitors (PPIs) and H pylori therapy. Duodenal ulcers are more common than gastric ulcers, but the incidence of bleeding is identical for both.

In this video, Professor Dan Reinstein performs a bilateral LASIK procedure filmed in real-time to demonstrate the full 8 and-a-half minute procedure from multiple angles. The superior design and experience of the Carl Zeiss Meditec Visumax femtosecond Laser for flap creation is seen, where the patient is only in contact with the device for about 30 seconds with extremely low contract force such that the patient feels effectively nothing, there are no red splodges (subconjunctival haemorages) left behind. From the surgeons' standpoint there is no device that is easier to use or faster for LASIK flap creation. The Carl Zeiss Meditec MEL80 excimer laser portion of the procedure is seamlessly integrated and incorporates all the features that make clinical outcomes so reproducible including the unique cone-for-controlled-atmosphere (CCA) and high efficiency, high sensitivity calibration test which can be performed for each individual patient to compensate for minor changes in energy that occur with excimer laser devices during the course of a day.

For reference to the clinical outcomes for LASIK with the MEL80 in presbyopia using PRESBYOND Laser Blended Vision see:

Reading glasses presbyopia (ageing eyes) only:
LASIK for presbyopia correction in emmetropic patients using aspheric ablation profiles and a micro-monovision protocol with the Carl Zeiss Meditec MEL 80 and VisuMax.
J Refract Surg. 2012 Aug;28(8):531-41. Reinstein DZ, Carp GI, Archer TJ, Gobbe M.
http://www.ncbi.nlm.nih.gov/pubmed/22869232

Short sighted, astigmatism and presbyopia (ageing eyes)
LASIK for Myopic Astigmatism and Presbyopia Using Non-Linear Aspheric Micro-Monovision with the Carl Zeiss Meditec MEL 80 Platform.
J Refract Surg. 2011 Jan;27(1):23-37. Epub 2010 Mar 1.
Reinstein DZ, Archer TJ, Gobbe M.
http://www.ncbi.nlm.nih.gov/pubmed/20205360

Long-sighted, astigmatism and presbyopia (ageing eyes)
LASIK for hyperopic astigmatism and presbyopia using micro-monovision with the Carl Zeiss Meditec MEL80 platform.
J Refract Surg. 2009 Jan;25(1):37-58. Reinstein DZ, Couch DG, Archer TJ.
http://www.ncbi.nlm.nih.gov/pubmed/19244952

For more information about laser eye surgery and PRESBYOND Laser Blended Vision, please contact the London Vision Clinic on 020 7224 1005.

Bell's palsy is a form of temporary facial paralysis resulting from damage or trauma to the facial nerves. The facial nerve-also called the 7th cranial nerve-travels through a narrow, bony canal (called the Fallopian canal) in the skull, beneath the ear, to the muscles on each side of the face. For most of its journey, the nerve is encased in this bony shell. Each facial nerve directs the muscles on one side of the face, including those that control eye blinking and closing, and facial expressions such as smiling and frowning. Additionally, the facial nerve carries nerve impulses to the lacrimal or tear glands, the saliva glands, and the muscles of a small bone in the middle of the ear called the stapes. The facial nerve also transmits taste sensations from the tongue. When Bell's palsy occurs, the function of the facial nerve is disrupted, causing an interruption in the messages the brain sends to the facial muscles. This interruption results in facial weakness or paralysis. Bell's palsy is named for Sir Charles Bell, a 19th century Scottish surgeon who described the facial nerve and its connection to the condition. The disorder, which is not related to stroke, is the most common cause of facial paralysis. Generally, Bell's palsy affects only one of the paired facial nerves and one side of the face, however, in rare cases, it can affect both sides.

Neurological Examination

Big Bubble Technique

Dr. Eric Janssen of SportsMED Orthopaedic Surgery & Spine Center in Huntsville, Alabama demonstrates a total knee replacement using dry bones model. In this demonstration he uses the Wright Medical Evolution Knee implant. This demonstrations does not include soft tissue.

An arteriovenous fistula is an abnormal connection or passageway between an artery and a vein. It may be congenital, surgically created for hemodialysis treatments, or acquired due to pathologic process, such as trauma or erosion of an arterial aneurysm.