Top videos
Cystinuria is a condition characterized by the buildup of the amino acid cystine, a building block of most proteins, in the kidneys and bladder. As the kidneys filter blood to create urine, cystine is normally absorbed back into the bloodstream. People with cystinuria cannot properly reabsorb cystine into their bloodstream, so the amino acid accumulates in their urine. As urine becomes more concentrated in the kidneys, the excess cystine forms crystals. Larger crystals become stones that may lodge in the kidneys or in the bladder. Sometimes cystine crystals combine with calcium molecules in the kidneys to form large stones. These crystals and stones can create blockages in the urinary tract and reduce the ability of the kidneys to eliminate waste through urine. The stones also provide sites where bacteria may cause infections.
Are you worried about getting a sports hernia exam? In this video, we'll show you exactly what to expect when you get your hernia exam.
We'll take you through the various steps that are taken during the hernia exam, so you can have a more comfortable and informative experience. After watching this video, you'll have a better idea of what to expect and be prepared for your hernia exam!
#sportshernia #groinpain #california
The Epley Maneuver for Vertigo can be very effective at relieving vertigo symptoms, but it’s a procedure that should be performed by a physical therapist or other health care professional. This video is for demonstration purposes only. See Doctor Jo’s blog post about the Epley
Alexandra J. Golby, MD, Director, Image-guided Neurosurgery at Brigham and Women’s Hospital, discusses technological advancements to improve the precision of surgery to remove brain tumors.
It’s estimated that each year nearly 80,000 people are diagnosed with primary brain tumors and 100,000 with metastatic brain tumors. Nearly everybody is at risk for developing a brain tumor. Brain tumors can affect people from childhood to the last years of their lives. Men are slightly more affected than women and the causes of most brain tumors are not known.
There are a number of unique challenges in treating brain tumors. One challenge is that primary tumors can have indistinct margins that are difficult to see. Another challenge is that the tissue around a brain tumor is uniquely important and may impact things like language, visual and motor function.
The AMIGO Suite, opened in 2011 at Brigham and Women’s Hospital, is the Advanced Multimodality Image Guided Operating Suite. It's an NIH-funded national center which was developed with the goal of translating technological advances into improvements in surgical and interventional care for patients. In the AMIGO Suite, there is an intraoperative MRI scanner which can be brought in and out of the operating room during surgery to help surgeons visualize a patient’s tumor better.
Image-guided surgery uses the information obtained from advanced imaging and translates that into the planning and execution of surgery by acquiring high resolution and specialty structural images of the brain and also functional images of the brain. These images can be registered to one another and then to the patient's head during surgery. This allows surgeons to pinpoint the location of the tumor as well as the areas that we would like to preserve, areas that serve critical brain functions are located.
One of the big challenges, even with image-guided surgery, is that as we perform the surgery, the configuration of the brain is changing, and we call that brain shift. And it's due to changes in the brain itself and also as we remove tissue, things are constantly shifting and moving. When we're talking about doing brain tumor surgery, a few millimeters of movement can be a big difference. How to measure and track brain shift is an important area of research and a number of technologies are being studied to understand how to measure brain shift during surgery.
The development of various intraoperative imaging technologies allows surgeons to provide the most accurate surgical treatment for each individual patient.
Learn more about precision brain surgery at Brigham and Women’s Hospital:
https://www.brighamandwomens.o....rg/neurosurgery/brai
The pelvic floor or pelvic diaphragm is composed of muscle fibers of the levator ani, the coccygeus, and associated connective tissue which span the area underneath the pelvis. The pelvic diaphragm is a muscular partition formed by the levatores ani and coccygei, with which may be included the parietal pelvic fascia on their upper and lower aspects. The pelvic floor separates the pelvic cavity above from the perineal region (including perineum) below.
The right and left levator ani lie almost horizontally in the floor of the pelvis, separated by a narrow gap that transmits the urethra, vagina, and anal canal. The levator ani is usually considered in three parts: pubococcygeus, puborectalis, and iliococcygeus. The pubococcygeus, the main part of the levator, runs backward from the body of the pubis toward the coccyx and may be damaged during parturition. Some fibers are inserted into the prostate, urethra, and vagina. The right and left puborectalis unite behind the anorectal junction to form a muscular sling . Some regard them as a part of the sphincter ani externus. The iliococcygeus, the most posterior part of the levator ani, is often poorly developed.
The coccygeus, situated behind the levator ani and frequently tendinous as much as muscular, extends from the ischial spine to the lateral margin of the sacrum and coccyx.
The pelvic cavity of the true pelvis has the pelvic floor as its inferior border (and the pelvic brim as its superior border.) The perineum has the pelvic floor as its superior border.
Some sources do not consider “pelvic floor” and “pelvic diaphragm” to be identical, with the “diaphragm” consisting of only the levator ani and coccygeus, while the “floor” also includes the perineal membrane and deep perineal pouch. However, other sources include the fascia as part of the diaphragm. In practice, the two terms are often used interchangeably.
Inferiorly, the pelvic floor extends into the anal triangle.
A spontaneous vaginal delivery (SVD) occurs when a pregnant woman goes into labor with or without use of drugs or techniques to induce labor, and delivers her baby in the normal manner, without forceps, vacuum extraction, or a cesarean section. Assisted vaginal delivery (AVD) occurs when a pregnant woman goes into labor with or without the use of drugs or techniques to induce labor, and requires the use of special instruments such as forceps or a vacuum extractor to deliver her baby vaginally.
Patient Greg Grindley communicates with host Bryant Gumbel and his wife for the first time while undergoing deep brain stimulation surgery at University Hospital's Case Medical Center in Cleveland, Ohio.
➡ Subscribe: http://bit.ly/NatGeoSubscribe
About National Geographic:
National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible.
Get More National Geographic:
Official Site: http://bit.ly/NatGeoOfficialSite
Facebook: http://bit.ly/FBNatGeo
Twitter: http://bit.ly/NatGeoTwitter
Instagram: http://bit.ly/NatGeoInsta
Greg's First In-Surgery Conversation | Brain Surgery Live
https://youtu.be/zvqV_2zncNU
National Geographic
https://www.youtube.com/natgeo
Acclaimed sexologist Hanny Lightfoot-Klein, author of several highly illuminating books on genital mutilation, discusses compromises in orgasm after male circumcision. Also commenting is cultural anthropologist James De Meo.From the groundbreaking documentary film, "Whose Body, Whose Rights?"