bypass /by·pass/ (bi´pas) an auxiliary flow; a shunt; a surgically created pathway circumventing the normal anatomical pathway, such as in an artery or the intestine.
bypass
bypass [bi´pas″]
cardiopulmonary bypass diversion of the flow of blood to the heart directly to the aorta, via a pump oxygenator, avoiding both the heart and the lungs; a form of extracorporeal circulation used in heart surgery.
coronary artery bypass a section of vein or other conduit grafted between the aorta and a coronary artery distal to an obstructive lesion in the latter.
gastric bypass gastrojejunostomy in which the stomach is transected high on the body, the proximal remnant being joined to a loop of jejunum in end-to-side anastomosis.
by·pass (b  p s )n. 1. A passage created surgically to divert the flow of blood or other bodily fluid or to circumvent an obstructed or diseased organ. 2. A surgical procedure to create such a channel. |
bypass
Etymology: AS, bi, alongside; Fr, passer
1 any one of various surgical procedures to divert or shunt the flow of blood or other natural fluids from normal anatomic courses. A bypass may be temporary or permanent. Bypass surgery is commonly performed in the treatment of cardiac and GI disorders.
2 a term used by some hospitals to signal that its emergency department lacks the personnel and equipment to handle additional patients, thereby advising that ambulances transporting new patients be diverted to other hospitals.
bypass [bi´pas″]
an auxiliary flow; a shunt; a surgically created pathway circumventing the normal anatomical pathway, such as in an artery or the intestine.
Bypass. Single artery bypass of an occluded right coronary artery. From Dorland's, 2000.
aortocoronary bypass coronary artery bypass.
aortofemoral bypass insertion of a vascular prosthesis from the aorta to the femoral artery to bypass atherosclerotic occlusions in the aorta and the iliac artery.
aortoiliac bypass insertion of a vascular prosthesis from the abdominal aorta to the femoral artery to bypass intervening atherosclerotic segments.
axillofemoral bypass insertion of a vascular prosthesis or section of saphenous vein from the axillary artery to the ipsilateral femoral artery to relieve lower limb ischemia in patients in whom normal anatomic placement of a graft is contraindicated, as by abdominal infection or aortic aneurysm.
axillopopliteal bypass insertion of a vascular prosthesis from the axillary artery to the popliteal artery to relieve lower limb ischemia in patients in whom the femoral artery is unsuitable for axillofemoral bypass.
cardiopulmonary bypass diversion of the flow of blood from the entrance to the right atrium directly to the aorta, usually via a pump oxygenator, avoiding both the heart and the lungs; a form of extracorporeal circulation used in heart surgery.
coronary bypass (coronary artery bypass) a section of saphenous vein or other conduit grafted between the aorta and a coronary artery distal to an obstructive lesion in the latter; called also aortocoronary bypass.
extra-anatomic bypass an arterial bypass that does not follow the normal anatomic pathway, such as an axillofemoral bypass.
extracranial/intracranial bypass anastomosis of the superficial temporal artery to the middle cerebral artery to preserve function or prevent stroke or death in patients with stenosis of the internal carotid or middle cerebral artery.
femorofemoral bypass insertion of a vascular prosthesis between the femoral arteries to bypass an occluded or injured iliac artery.
femoropopliteal bypass insertion of a vascular prosthesis from the femoral to the popliteal artery to bypass occluded segments.
gastric bypass see gastric bypass.
hepatorenal bypass insertion of a vascular prosthesis between the common hepatic artery and the renal artery, serving as a passage around an occluded segment of renal artery.
intestinal bypass (jejunoileal bypass) see intestinal bypass.
left heart bypass diversion of the flow of blood from the pulmonary veins directly to the aorta, avoiding the left atrium and the left ventricle.
partial bypass the deviation of only a portion of the blood flowing through an artery.
partial ileal bypass anastomosis of the proximal end of the transected ileum to the cecum, the bypass of the portion of the small intestine resulting in decreased intestinal absorption of and increased fecal excretion of cholesterol; sometimes used in treatment of hyperlipidemia.
right heart bypass diversion of the flow of blood from the entrance of the right atrium directly to the pulmonary arteries, avoiding the right atrium and right ventricles.
bypass
an auxiliary flow; a shunt; a surgically created pathway circumventing the normal anatomical pathway, as an intestinal bypass.
cardiopulmonary bypass
diversion of the flow of blood from the entrance to the right atrium directly to the aorta, usually via a pump oxygenator, avoiding both the heart and the lungs; a form of extracorporeal circulation used mainly in experimental animals in the investigation of cardiac prosthetic devices. Called also CPB.
bypass
Cardiovascular surgery A surgical procedure in which a cardiovascular surgeon creates a new pathway for the flow of body fluids; bypass graft. See Cardiopulmonary bypass, Coronary artery bypass graft Managed care The re-routing of a Pt
to be admitted to facility A–eg, to an ER, pediatric ICU, or other, to an equivalent facility B, when A is filled to capacity. Cf Anti-dumping laws, Bed, Dumping.
Patient discussion about bypass.
Q. What are the risks in a gastric bypass surgery for weight loss? I am obese and I am interested in doing this surgery, but I’m scared. What are the risks of this surgery?
A. The resulting weight loss in gastric bypass surgery is typically dramatic, and markedly reduces co-morbidities of obesity. However, complications are common and surgery-related death occurs within one month in 2% of patients. As in any type of abdominal surgery there is the risk of developing an infection and sepsis, venous thrombosis, hemorrhage, hernia, bowel obstruction and leak from the gut. This particular surgery puts the patient in danger also for mineral and nutritional losses.
Q. What types of gastric bypass surgeries are there? I heard all sorts of options for gastric bypass are available. What is the most in use?
A. Bariatric surgeries or – gastric bypass surgeries for weight loss fall into three categories: Restrictive procedures make the stomach smaller to limit the amount of food intake, malabsorptive techniques reduce the amount of intestine that comes in contact with food so that the body absorbs fewer calories, and combination operations employ both restriction and malabsorption. The exact one to be done should be decided with the physician according to each patients abilities and pre-operative function level.
Q. how about gastric bypass surgery how does it work on a person and what they half to eat how much weight does the person lose
A. surgery should always be the last answer because it is the biggest change you will do to your body and to your life. theres always a chance that something might go wrong. you have to be on a tight diet meaning one bite of what you eat and that means no sugars, fats, or oils. even if you thought there was no sugar, oil or fat in what ever you eat you will have so much pain in your stomach and you wont stop vomiting which will make it even more painful. the bright side to it is you will lose about 50 pounds in one month which is great but if you dont work out like crazy trying to tone up your muscles you will sag all over and then theres more money thrown out of your pocket doing tummy tucks and tucks for everything else. itall depends on the person. good luck in what ever you do. do your research first
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