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Doctor insights on: Ketosis And Gastric Bypass

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Dr. Matthew Griffin
61 doctors shared insights

Ketosis (Definition)

Ketosis describes a state of increased ketone bodies in the blood stream. Ketone bodies are generated from the breakdown of lipids (fat) when there are low levels of blood sugar or cells are not able to absorb the blood sugar present, as in diabetic ketoacidosis. Some diets which limit carbohydrates cause low blood sugar and may also result in ketosis. Ketone bodies disrupt the acidity of blood and when dangerously elevated can overwhelm the buffering ability of the body and ...Read more


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Why is the mini gastric bypass?

Why is the mini gastric bypass?

Mini gastric bypass: The mini gastric bypass is not endorsed by any asmbs or any of the top academic bariatric surgery programs in the country. It is safe, but it is basically a billroth 2 operation which can cause bile reflux. The fix for that problem is a roux-en-y gastric bypass meaning that for 50 years we have known that a roux-en-y is better than a billroth 2. The b2 is just easier for the surgeon to do. ...Read more

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How expensive is gastric bypass?

How expensive is gastric bypass?

1 st do you need one: Then you have to be in program, will motivate you loose weight, assess your general status before accepting into program. Go and see one close to you, if you are a candidate they will tell you how much it costs work out a plan for the payment. ...Read more

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Could I reverse my gastric bypass?

Could I reverse my gastric bypass?

Yes you can: The standard bypass does not remove any parts, so re-connecting the stomach pouch to the remnant stomach and removing the roux small bowel limb are possible. Reversal is rarely done since most problems causing patients to consider reversal can be treated with other means. The procedure has higher risk than the first operation since the surgeon is working with altered anatomy. ...Read more

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How safe is it to have a gastric bypass?

How safe is it to have a gastric bypass?

Very safe. : Bariatric surgery has come a long way in the last 20 years. The major complication rate is in the range of 1-2 % but varies considerably between surgical groups. Find a skilled group who focuses on bariatrics and are fellowship trained in it. The bottom line is that the risk of death from living with morbid obesity is higher than the risk from surgery, by far. ...Read more

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What determines if gastric bypass was successful?

What determines if gastric bypass was successful?

Ask Bariatric surgeo: I guess the success is the lost of weight and the improvement in the numbers of the glucose (a1c) and improvement in blood pressure and the lack of complications vomiting, dehydration, formation of ulcers etc. ...Read more

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What are the chances of a successful gastric bypass?

What are the chances of a successful gastric bypass?

Very good: Bariatric surgery has a success rate of about 80-90% for significant weight loss and maintaining that weight loss. Diet and exercise has a success rate of more like 5-10%. Average weight loss with the gastric bypass is about 70-80% of your excess body weight. ...Read more

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What are your expert opinions on the effectiveness of gastric bypass?

What are your expert opinions on the effectiveness of gastric bypass?

Caution : The procedures are effective at helping you lose weight, but I have many patients in my practice who have had the procedures in the past and now have terrible nutritional deficiencies. They require pretty frequent iron infusions, which now must be done in the hospital at least where I am. I would never recommend the procedures. ...Read more

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Is having a gastric bypass safe and what are the disadvantages if any....?

Some risk: Modern gastric bypass surgery is much safer than it used to be, with a risk of death around 1% and other complications around 40%. The risk seems to be worth it though because the risk of death after successful surgery goes down 89% over five years. So if 100 people have gastric bypass, about one will die from the surgery, but 89 will survive longer than they would have without the surgery! ...Read more

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Salads after gastric bypass?

Yes. : Salads are fine once you are past the early post op time period designated by your surgeon's team. Just be careful of dressings, as many of them are rather high in dietary sugars. Higher amounts of dietary sugars can cause dumping syndrome. ...Read more

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What are the risks of gastric bypass?

What are the risks of gastric bypass?

Complications: The worst complication is a leak which occurs 3% of the time nationwide (but about .5% of the time if you go a very experienced surgeon). Bleeding, infection, bowel obstruction, anesthesia complications are others, and these typically occur at 1% or less of the time. It is a safe operation, but go to someone that has done thousands of them. For example, my group has done over 5000. ...Read more

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Gastric bypass anything like the lapband?

Gastric bypass anything like the lapband?

No: Band does not involve cutting the stomach or re-routing intestines. ...Read more

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What happens to skin after gastric bypass?

What happens to skin after gastric bypass?

Not much: Unfortunately, as your waistline starts to shrink, your skin stays pretty much where it was. This results in significant laxity of your skin. Your skin tends not to retract back very much, leaving you with excess, hanging skin. ...Read more

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Can I still drink after I've had gastric bypass?

Can I still drink after I've had gastric bypass?

Very little: You may drink some non-carbonated alcohol. The absorption is rapid and effect is quick. There is some data that a small percentage might fall into alcohol abuse, since they get rapidly intoxicated, then quickly sober, then drink again, chasing the quick "high". Best to keep verylimited, like one half glass of wine. ...Read more

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Can you have gastric bypass after total colectomy?

Can you have gastric bypass after total colectomy?

Bypass: If you have extensive abdominal surgery such as a tital colectomy a gastric bypass is not a good choice for you however you can look into other options such as the band or the sleeve gastrectomy. ...Read more

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What do docs think of the gastric bypass procedure?

What do docs think of the gastric bypass procedure?

Bypass and band: Gastric bypass is the gold standard, been around for 50yrs, results in the greatest weight loss, the highest cure rates for diabetes, hypertension, etc, but has a slightly higher risk. It is an excellent operation and accounts for the majority of weight loss operations done in the us. It is safe if done by a surgeon who has done thousands of cases. ...Read more

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Patients with gastric bypass can they gain weight back?

Patients with gastric bypass can they gain weight back?

Yes: Regaining weight frequently happens. It used to be thought that it had to do with enlargement of the gastric pouch, but more recent studies suggest that it is related to a gradual widening of the gastrojejunal anastomosis (the joining between the stomach pouch and small intestine that is created). ...Read more

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Can you tell me can a 13-year-old get a gastric bypass?

Can you tell me can a 13-year-old get a gastric bypass?

Doubt it: I have heard of some bariatric centers offering some weight control surgery to kids as young as 16, but not younger. These limits are subject to change over time as the treatment standards evolve. ...Read more

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Is it bad to have laparoscopic gastric bypass for scores?

Is it bad to have laparoscopic gastric bypass for scores?

Scars: No. You use have 5 or 6 small incisions (an inch or less). Some people form dark scars or even thick keloids. Other people have scars that literally disappear. African americans and asians tend to form keloids compared to caucasians. ...Read more

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Is the 5-day pouch test ok for gastric bypass patients?

Yes, but ? need: Many bariatric programs routinely do a pouch leak test in the early post-operative period, some the day after, some waiting 5-7 days after surgery. The overall leak rate is low and does not always pick up all leaks, especially if done too early. In one study from UCLA, routine pouch leak studies after laparoscopic gastric bypass did not contribute signi?cantly to postoperative patient care ...Read more

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I have systemic scleraderma. Can I have a gastric bypass?

Complicated : Without knowing anything else about you and your medical history and eating habits, etc I would be hesitant and feel that a different procedure may be a better option. But there are many factors that weigh into recommending the best bariatric procedure. You really need to talk to a bariatric surgeon about which surgery is the right one for you. ...Read more

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Can I get gastric bypass covered by insurance or medicaid?

Usually: Gastric bypass is usually covered by most insurances including medicare and medicaid. There are often requirements such as doctor supervised weight loss for a number of months, or the surgery to be performed at a bariatric center of excellence.
But yes it is covered usually. ...Read more

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For what reason wouldn't gastric bypass work on some people?

Gastric bypass fail: In order for a gastric bypass to work, the patient must do their part which is to eat healthy food, eat the right portions, and exercise. The operation helps with eating the right portions, but it doesn't dictate what you eat. You can eat junk food, not exercise, and defeat a gastric bypass. Also, overeating can stretch the pouch and make it easier to eat more food. ...Read more

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How long would recovery for laparoscopic gastric bypass take?

Recovery: Most of my patients are back to work in 2-3 weeks. No heavy lifting or strenuous activity for six weeks. ...Read more

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Do I have to see a specialist to get a gastric bypass ordered?

Do I have to see a specialist to get a gastric bypass ordered?

Ordered no, done yes: Need a thorough, multidisciplinary evaluation, including psychologic, before the procedure is done. Needs to be done by a specialist/bariatric surgeon in a "center of excellence" which does at least 100/yr, with good results and follow up. Can have lots of complications during and afterward; need high quality care. ...Read more

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Is diabetes a risk factor for complications in gastric bypass?

Is diabetes a risk factor for complications in gastric bypass?

Yes, poor control..: Of diabetes prior to op can increase complications of surgery

So get control of sugars prior to operation to then get benefit of operation in decreasing medication need in treating diabetes. ...Read more

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Have you had the gastric bypass done after having the lapband?

Many. Works well: We are seeing quite a few band patients who develop some intolerance (usually heartburn). Almost 1/3 seem to need the band removed. The next options would be either a sleeve or a gastric bypass. Both seem to work fairly well. Most will lose about 60-70% of excess weight after this revision surgery. The bypass is better for those with persistent bad reflux after the band comes out. ...Read more

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How much should I be eating 3 months post-op from gastric bypass?

Whaever is comforrta: The purpose of a gastric bypass is to lose weight safely. The easy way to do that is to drink lots of fluid and eat several small meals a day. It is possible to out-eat your bypass and regain lost weight. Don't get caught in that trap. ...Read more

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Can I receive gastric bypass being almost 100 pounds over weight?

Can I receive gastric bypass being almost 100 pounds over weight?

Yes: However, it is a big decision requires extensive evaluation prior to the surgery. Also, it is a commitment to start changing behavior regarding healthy eating and exercise as much as you tolerate before not after the surgery. ...Read more

Dr. Gregg Nishi
473 doctors shared insights

Gastric Bypass Surgery (Definition)

Gastric bypass surgery is a restrictive and malabsorptive procedure to help lose weight. Restrictive is in the fact that the stomach is down sized to a 2 oz pouch and malabsorptive is in bypassing part of the stomach and 100 to 150 cm of the small ...Read more


Gastric (Definition)

This refers to something that is ...Read more