Heart sounds S3, S4

Surgery during a Pancreatectomy. One can see the pancreas half extracted. This is Experimental Surgery, taken during a Pancreas transplantation

Examination of varicose veins

A video of appendectomy surgery performed by the laparoscope

Sensory and reflexes exam of the upper limb from the USMLE collection Sensory and reflexes exam of the lower limb

Infant Cardio-pulmonary Resuscitation

This video shows the process of development and growth of the fetus intrauterine.

a video showing fiberoptic laryngoscopy and bronchoscopy

Modern technique of hernia's operations

Laparoscopic fixation of intraabdominal testis into the scrotum in a case of undescended testis.

Deeply Place Knot

How to Read ECG Part 3:
1-All
2-How to Read an ECG
3-ST Segment Changes
4-T Wave Changes
5-Effects of Drugs
6-Revision

MEdRC is a medical elearning company in India.

Lateral internal sphincterotomy

Sigmoid Colostomy

This endoscopy shows a patient with cancer of the larynx, Laryngeal cancer is the most common cancer of the upper respiratory tract. The incidence of laryngeal tumors is closely correlated with smoking, as head and neck tumors occur 6 times more often among cigarette smokers than among nonsmokers. The age-standardized risk of mortality from laryngeal cancer appears to have a linear relationship with increasing cigarette consumption. Death from laryngeal cancer is 20 times more likely for the heaviest smokers than for nonsmokers. It should be suspected in any patient with hoarseness of the voice for three weeks or longer until proven otherwise.

This 38 year old woman has increasingly intractable RUQ pain after cholecystectomy done one year prior. LFTs and pancreatic enzymes have been normal, and ducts are non-dilated, thus she is a Type III possible SOD patient. Initial goal is to define course of pancreatic duct for manometry. 5-4-3 Co...ntour catheter (Boston Scientific) is used to perform the pancreatogram which shows a small straight distal duct. The aspirating triple lumen manometry catheter (Wilson Cook) is used to cannulate the pancreatic duct, with continuous aspiration of fluid once the duct is entered. Careful stationed pullthrough manometry shows markedly abnormal basal pressures in both leads in the pancreatic sphincter. Plan is dual pancreatic and biliary sphincterotomy. Biliary manometry will not now change our plan therefore is omitted. Our first goal is to access the pancreatic duct so we can guarantee wire access for placement of a small caliber pancreatic stent which is critical for safety. Contrast is injected as the 0.018in Roadrunner wire (Wilson Cook) is advanced in order to outline the course of main duct. A separate biliary orifice is clearly seen, unusual in SOD patients. A soft 4Fr 3cm single inner flange pancreatic stent (Hobbs Medical) is placed. We did not want to use our typical 9cm long unflanged stent as even a 3 or 4 French stent might be traumatic to the tiny caliber of this duct out in the body of the gland. Next the bile duct is cannulated with a papillotome (Autotome 39, Boston Scientific), showing a small perhaps 6mm bile duct. Biliary sphincterotomy is performed in very careful stepwise fashion as landmarks are unclear and perforation is higher risk in small duct SOD patients. On the other hand, inadequate sphincterotomies offer limited chance of symptom relief. You can see here a patulous sphincterotomy. Next a pancreatic sphincterotomy is performed with the needle knife (Boston Scientific) over the pancreatic stent. Again this is performed cautiously due to the small size of the pancreatic duct. We are reaching along the stent and cutting the fibers deeply. This is a limited pancreatic sphincterotomy due to small pancreatic duct size, and concern for scarring of the pancreatic duct. It is important to document passage of the stent by xray or remove it endoscopically with two weeks or so. We and many other specialized centers perform dual sphincterotomies at the first ERCP in all SOD patients with abnormal pancreatic manometry and frequent or intractable symptoms based on the belief that response rates are better than for biliary sphincterotomy alone.

Access to processes within the skull base with lateral extension to the pterygopalatine fossa are reached by combined subfrontal osteotomy and Le Fort I osteotomy

This task requires streching a rubber band around 16 nails on a wooden board. A penalty is calculated when the rubber band is not streched around a nail at the end of the task. Score = time (seconds) + number of missed nails x 10. Performance standard: Score = 62 sec [Kolkman 2008]

A videos of cataract surgery