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The most-watched medical videos on MedicalVideos.com — ranked by views from our community of medical students, healthcare professionals, and patients learning how the body works.
This video demonstrates the testicular self-examination, a simple check used to detect lumps or changes in the testicles. Regular self-examination supports early detection of testicular cancer, and the recording shows how the check is performed step by step. Testicular cancer mainly affects younger and middle-aged men, which makes regular self-checks worthwhile.
Tonsil stones are hard yellow or white formations that are located on or within the tonsils. It’s common for people with tonsil stones to not even realize they have them. Tonsil stones aren’t always easily visible and they can range from rice- to pea-sized. Tonsil stones rarely cause larger health complications. However, sometimes they can grow into larger tonsilloliths which can cause your tonsils to swell
This video presents the concept of head transplant surgery — an experimental and widely debated idea in transplant medicine — together with footage claimed to document an early attempt. It outlines the enormous surgical challenges such a procedure would involve. For learning purposes only — not medical advice.
Whether the result of an accident or biting on a piece of food that’s too hard, mouth injuries can cause teeth to become cracked, broken, or knocked out/dislodged. It is important to see a dentist because if left untreated, a dental emergency can lead to serious complications.
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. So, in the meantime, enjoy some variety in your sex life and keep it fun while you're trying for a baby. And talk to others who are hoping to get pregnant by joining our Actively trying group. Do I have to have an orgasm to conceive? Obviously, it's very important for your partner to reach orgasm if you are trying for a baby. There is no evidence, however, that you need to orgasm to conceive. The female orgasm is all about pleasure and satisfaction. It doesn't really help to get the sperm to the egg. Gentle contractions in your uterus can help the sperm along, but these happen without you having an orgasm. So, it's really not vital for you to reach orgasm after your partner, or even to reach orgasm at all, for you to conceive.
Thyroid nodules increase with age and are present in almost 10% of the adult population. Autopsy studies reveal the presence of thyroid nodules in 50% of the population, so they are fairly common. 95% of solitary thyroid nodules are benign, and therefore, only 5% of thyroid nodules are malignant.
The purpose of the organs of the male reproductive system is to perform the following functions: To produce, maintain, and transport sperm (the male reproductive cells) and protective fluid (semen) To discharge sperm within the female reproductive tract during sex To produce and secrete male sex hormones responsible for maintaining the male reproductive system
Mastitis is an infection of the breast tissue that results in breast pain, swelling, warmth and redness. You also might have fever and chills. Mastitis most commonly affects women who are breast-feeding (lactation mastitis), although sometimes this condition can occur in women who aren't breast-feeding. In most cases, lactation mastitis occurs within the first six to 12 weeks after giving birth (postpartum), but it can happen later during breast-feeding. The condition can cause you to feel run down, making it difficult to care for your baby. Sometimes mastitis leads a mother to wean her baby before she intends to, but continuing to breast-feed, even while taking an antibiotic for the mastitis, is better for you and your baby.
What is a Whipple procedure?
Also called a pancreaticoduodenectomy, the Whipple procedure is performed to address chronic pancreatitis and cancer of the pancreas, ampulla of Vater, duodenum, and the distal bile duct. The Whipple procedure involves removing the cancerous parts of the pancreas, duodenum, common bile duct, and if required, part of the stomach.
En Bloc Esophageal Mucosectomy, an experimental technique for the endolumenal management of Barrett's related dysplasia and neoplasia. High grade dysplasia is in indication for esophagectomy; however esophagectomy has a mortality rate up to 12 percent, and up to 56 percent of patients may develop s...erious post-operative complications. Multiple ablated lesions can progress under the neo-squamous layer, leading to buried Barrett's mucosa. With conventional piecemeal EMR, cautery effect limits evaluation in areas of interest, Barrett's epithelium is left behind, tissue is not evaluated in situ and invasive lesions may be missed due to incomplete sampling. A new technique, en bloc esophageal mucosectomy, or EEM, was developed. The technique begins with conventional EMR in the proximal esophagus to access the submucosal space. Conventional EMR is being performed here. The mucosa is resected using an electrothermal snare. The mucosal defect from the first EMR is seen here. EMR is then repeated on the opposing wall. Sequential EMR creates a complete concentric mucosal defect. In the following sequence the completely detached column of mucosa can be seen, bounded by submucosa and muscularis propria layers. Here in the stomach, the endoscope is retroflexed and is covered by a sleeve of esophageal mucosa which has been freed to the GE junction and inverted. This sequence demonstrates a double snare technique. This snare is alongside the endoscope. The snare has been passed through the working channel. The working channel snare is pulled back, and the snare alongside the scope is used to grasp the mucosal column. With tension on the column the working channel snare can be threatened and advanced. This sequence shows the snare as it is being passed down to the GE junction. At the GE junction, the snare is tightened and cautery is applied. This frees the column of mucosal tissue from the remaining attachment. The endoscope is then withdrawn. Then detached mucosal column can be grasped with a snare and retrieved. In the following sequence, the long column of mucosa is being withdrawn via the overtube. Here, endoscopic forceps have been passed through the column to demonstrates the concentric nature of the specimen. The length of mucosa can be seen here alongside 2 conventional EMR specimens. Approximately 15cm of tissues was removed in this case. On endoscopy immediately following the resection, there is no bleeding or evidence of perforation in the area of resection. The endoscope is advanced and the exposed submucosa can be appreciated down to the GE junction. This is the low power view of the histologic specimen generated by EEM. Metaplastic tissue adjacent to a dysplastic focus would be completely removed. With a high power view, the layers of the esophagus can be appreciated. The epithelium, lamina propria, muscularis mucosa and submucosa are visible, with no cautery artifact in the area of interest. The technique would remove metplasia, low grade dysplasia, high grade dysplasia, and intramucosal carcinoma, as well a T 1 a lesions. All the animals in this series tolerated the procedure well. A total of five non-survival procedures and 4 survival procedures were performed. In the survival procedures, all four swine thrived in the post-operative period. Two swine were then survived for 9 days following the procedure. On post —op day nine, after passing into the upper esophagus, the proximal margin of the mucosectomy is seen here. Healing appears to be occurring. There is no evidence of leak, and no stricting is seen at 9 days down to the GE junction Passing into the stomach, some residual feed can be seen. Two swine were then survived for 13 days. On this follow-up endoscopy, the area of the mucosectomy is again healing. There was a loose stricture in both animals and both were easily traversed with a 9.8 mm gastroscope. There was a gross appearance of re-epitheliazation in some areas. It is notable that the stricture was present in the proximal esophagus with no narrowing distally. At necropsy there was not eviden
This short clinical-skills video demonstrates an intramuscular injection being given to a female patient. Intramuscular injections deliver medication deep into the muscle tissue, and correct site selection and technique are essential parts of everyday nursing and clinical practice.
Urogenital neoplasms spreading to the inguinal lymph nodes are penile carcinoma (the most frequent), urethral and scrotum cancers, tumors of the testis with scrotal violation. Penile carcinoma is an uncommon malignant disease and accounts for as many 0.4-0.6% of male cancers. Most patients are elder...ly. It rarely occurs in men under age 60 and its incidence increases progressively until it reaches a peak in the eighth decade 1. The risk of a lymph node invasion is greater with high grade and high stage tumors 2. Some investigators have reported the inaccuracy of the sentinel node biopsy 3, 4, described by Cabanas 5. Patients with metastatic lymph node penis cancer have a very poor prognosis if penectomy only is performed. Ilioinguinal lymphadenectomy is basically carried out as a treatment modality and not only as a staging act. Patients with lymph node invasion have a 30-40% cure rate. Ilioinguinal lymphadenectomy should be also performed in patients with disseminated neoplasms for the local control of the disease. The 5 years survival rate of patients with clinically negative lymph nodes treated with a modified inguinal lymphadenectomy is 88% versus 38% in patients not initially treated with lymphadenectomy 6. This video-tape clearly shows a therapeutic algorithm, the anatomy of the inguinal lymph nodes, according to Rouviere 7 and Daseler 8, the radical ilioinguinal node dissection with transposition of the sartorius muscle and the modified inguinal lymphadenectomy proposed by Catalona 9. References: 1. Lynch D.F. and Schellhammer P: Tumors of the penis. In Campbell’s Urology Seventh Edition, edited by Walsh P.C., Retik A.B., Darracott Vaughan E. and Wein A.J. W.B. Saunders Company, Vol. 3, chapt. 79, p. 2458, 1998. 2. Pizzocaro G., Piva L., Bandieramonte G., Tana S. Up-to-date management of carcinoma of the penis. Eur. Urol. 32: 5-15, 1997 3. Perinetti E., Crane D.B. and Catalona W.J. Unreliability of sentinel lymph node biopsy for staging penile carcinoma. J. Urol. 124: 734, 1980 4. Fowler J.E. Jr. Sentinel lymph node biopsy for staging penile cancer. Urology 23: 352, 1984 5. Cabanas R.M. An approach for the treatment of penile carcinoma. Cancer 39: 456, 1977 6. Russo P. and Gaudin P. Management strategies for carcinoma of the penis. Contemporary Urology;5:48-66, 2000 7. Rouviere H. Anatomy of the human lymphatic system. Edwards Brothers, p. 218, 1938 8. Daseler E.H., Anson B.J., Reimann A.F. Radical excision of the inguinal and iliac lymph glands: a study based on 450 anatomical dissections and upon supportive clinical observations. Surg. Gynecol. Obstet. 87: 679, 1948 9. Catalona W.J. Modified inguinal lymphadenectomy for carcinoma of the penis with preservation of saphenous veins: technique and preliminary results. J. Urol. 140: 306-310, 1988
A spermatocele (SPUR-muh-toe-seel) is an abnormal sac (cyst) that develops in the epididymis — the small, coiled tube located on the upper testicle that collects and transports sperm. Noncancerous and generally painless, a spermatocele usually is filled with milky or clear fluid that might contain sperm. The exact cause of spermatoceles is unknown but might be due to a blockage in one of the tubes that transports sperm. Spermatoceles, sometimes called spermatic cysts, are common. They typically don't reduce fertility or require treatment. If a spermatocele grows large enough to cause discomfort, your doctor might suggest surgery.
This is an introduction to ventilator settings like FIO2, PEEP, Flow rate,trigger,TV, and RR. I also discuss how these settings relate to CO2 and O2 control and to complications like oxygen toxicity and barotrauma with an emphasis on physiology.
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Founded by Dr. Mohamed Ibrahim, MD, PhD — physician-scientist.
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