Weight Loss or Bariatric Surgeries

» Thousands of Laparoscopic Bariatric
Surgeries Performed

» ASMBS Center of Excellence since 2005

» 90% Success Rate

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Dr. David Lourié, Director of the Bariatric Surgery Program and National Center of Excellence has been helping patients with morbid obesity achieve their best weight loss results for over eighteen years at Huntington Memorial Hospital in Pasadena, California.

According to the National Institutes of Health, weight loss (or bariatric) surgery is indicated for someone with a minimum body mass index (BMI) of 40, or a BMI of 35 who also has severe health conditions caused by obesity that require medical treatment. Use the BMI calculator below to check your BMI.


Weight Loss Procedures

Gastric Sleeve

gastric sleeve weight loss surgery david lourie md pasadena california In a gastric sleeve most of the middle and left side of the main stomach is removed leaving the remainder of the right side as a narrow vertical tube or “sleeve” which retains its normal connection to the esophagus above and the small intestine below. This results in both restriction in the amount of food able to be eaten as well as significant metabolic and gut hormone changes, which are very effective for weight loss.

Weight loss can be expected to be nearly as much, to slightly less than, that seen with a gastric bypass surgery. The sleeve permanently reduces the size of the stomach, and while it can be converted into a gastric bypass later, it can not be reversed back to normal anatomy. The sleeve does not involve cutting or sewing the small intestine and therefore minimizes potential future complications with the intestines or ulcers.

Roux-en-Y Gastric Bypass

gastric bypass surgery pasadena california In a gastric bypass surgery the upper portion of your own natural stomach tissue is separated from the main stomach to form a thumb-sized pouch. This pouch retains its normal connection to the esophagus (the food tube leading down to the stomach from the throat). The intestines are then surgically divided and one part is connected to the bottom of the pouch, so that your food can pass down into the intestines for digestion where it belongs. The leftover main stomach is bypassed away from the food stream and its outlet is reconnected to the main intestines below in a “Y” shaped connection to allow important digestive enzymes to mix with the food stream.

The gastric bypass results in excellent, fairly rapid weight loss by reducing the amount of food able to be eaten as well as producing significant metabolic and gut hormones changes which are very effective for weight loss.

Lap Band

dr david j lourie lap bandIn a laparoscopic adjustable gastric band surgery, a soft silicone tubular ring (band), like an inner tube, is placed around the very top of the stomach. This produces smaller portion control and can promote a feeling of fullness. This surgery allows slower, gradual weight loss over time to a lesser amount than the bypass or sleeve surgeries. The band is connected inside the body to a tube leading to a raised, disc-like port surgically placed under the skin of your abdomen. This allows the surgeon to adjust the band and make it tighter or looser by sticking a needle through the skin into the port and adjusting the amount of a fluid inside the “inner tube” of the band. The band requires adjustment multiple times throughout your life to work. The band can be removed surgically.

Revision Bariatric Surgery

revision weight loss surgery david lourie md Revision surgery is more complicated and involves converting someone who has already had a previous weight loss surgery into another form of weight loss surgery with the goal of achieving better results.

The most common revision operation we perform is converting an old failed stomach stapling (vertical banded gastroplasty) or a failed lap band into a gastric bypass or sleeve surgery. Though revision surgery is more risky, good results can often be achieved. Dr. Lourié often uses robotics for complicated gastric bariatric revision surgeries.

These simple explanations are not intended to represent medical advice or complete treatment explanations in any way. You should consult with your doctor to receive a detailed explanation of all the risks, benefits and alternatives to any procedure or surgery you may be contemplating and to decide which procedure if any may be appropriate for your specific needs and conditions.

metabolic and bariatric surgery accredited center

Patients Love Doctor Lourie!

I had an incredible experience with both Dr Lourie and his office manager Monique. Dr. Lourie’s skill and deftness is second to none. I feel incredibly fortunate to have had him take care of me.
R. O'Malley, Google+
One of the nicest, most professional doctors you will ever find.
John D., Yelp
Dr. Lourie seemed so soft spoken, but he doesn’t mess around when it comes to his surgeries. He has a great reputation for being a expert surgeon and caring much for his patients.
RN, Obesity Help
Dr. Lourie explained the procedure well before hand in his office. He answered all my questions before I could even ask them. He esp. demonstrated a confidence in what he was going to do yet with humbleness which was very reassuring. I had a long and complicated surgery and I went into the surgery feeling confident everything was going to be ok! The office staff were reassuring and very responsive when I emailed or called. Thanks for making this such a positive experience!
Crystal D., Yelp.