Search results
Results From The WOW.Com Content Network
The left gastric vein runs from right to left along the lesser curvature of the stomach. [2] It passes to the esophageal opening of the stomach, where it receives some esophageal veins. [2] It then turns backward and passes from left to right behind the omental bursa. It drains into the portal vein near the superior border of the pancreas. [2]
This leads to varices in the esophagus and stomach, which can bleed; B) a needle has been introduced (via the jugular vein) and is passing from the hepatic vein into the portal vein; c) the tract is dilated with a balloon; D) after placement of a stent, portal pressure is normalized and the coronary and umbilical veins no longer fill.
Gastric varices are dilated submucosal veins in the lining of the stomach, which can be a life-threatening cause of bleeding in the upper gastrointestinal tract. They are most commonly found in patients with portal hypertension , or elevated pressure in the portal vein system, which may be a complication of cirrhosis .
Coronary artery bypass graft surgery has been in practice since the 1960s. Historically, vessels—such as the great saphenous vein in the leg or the radial artery in the arm—were obtained using a traditional "open" procedure that required a single, long incision from groin to ankle, or a "bridging" technique that used three or four smaller incisions.
Off-pump coronary artery bypass (OPCAB) surgery avoids using the CPB machine by stabilizing small segments of the heart at a time. The surgical team and anesthesiologists must coordinate and take great care to not manipulate the heart too much, lest they compromise the stability of blood flow.
Chronic venous insufficiency (CVI) is a medical condition characterized by blood pooling in the veins, leading to increased pressure and strain on the vein walls. [1] The most common cause of CVI is superficial venous reflux, which often results in the formation of varicose veins, a treatable condition. [2]
Coronary collateralization exists latently in the normal heart. Microscopic collateral vessels of the heart undergo a process called transformation that widens the vessel lumen at the expense of its cell wall in response to myocardial stresses—specifically, myocardial spasm and hypoxia secondary to myocardial infarction or acutely stressful ...
The gastric bypass reduces the size of the stomach by well over 90%. [4] A normal stomach can stretch, sometimes to over 1000 mL, while the pouch of the gastric bypass may be 15 mL in size. The gastric bypass pouch is usually formed from the part of the stomach that is least susceptible to stretching.