Northwest Houston Surgical Association

Gastric Bypass Surgery

Case 22

Following Gastric Bypass, Michael has left behind 180 pounds and now works out two to three hours a day, runs two to three times a week and operates his own fitness business.

Many people have heard of gastric bypass surgery[Close Span] in Houston, and may even know someone who has benefited from the procedure. Gastric bypass is successful at helping patients achieve and maintain a healthier weight by using restrictive and malabsorptive techniques. Women and men come to Northwest Houston Surgical Association with different goals, physical concerns and lifestyle factors, all of which we consider when developing a treatment plan. For many, gastric bypass surgery is the best choice for achieving a healthier and manageable lifestyle.[Close Div]

When you meet with any of the NHSA surgeons for a consultation, they will carefully consider what will help you attain the best possible outcome for you and your lifestyle. They will educate you until they are convinced that you understand the risks and benefits of gastric bypass.

If you’re ready to improve your life, request a consultation online or call our office at 713-426-2400 for more information.


Gastric bypass surgery, also referred to as Roux-en-Y, is a popular weight loss procedure that our team of skilled surgeons has performed successfully for many women and men in the Houston area. Many health problems including back pain, sleep apnea, high blood pressure, type 2 diabetes as well as depression improve or are resolved following gastric bypass surgery.

Learn more about the procedure

Gastric bypass surgery is a combination procedure. First, the surgeon sections off a portion of the stomach to create a new stomach pouch. Then the surgeon sections off a portion of the small intestine and attaches it to the new stomach pouch using surgical staples. Because the stomach is now a smaller size, this allows patients to feel fuller sooner as well as the ability to eat less food. Also, as calories are absorbed in the small intestine, bypassing a portion of it means that the body will absorb fewer calories.

  • dr-fadner-img
    Meet Our Doctors

    Dr. Fadner

    Dr. Fadner is fellowship trained in Advanced Minimally Invasive Surgery and Bariatric Surgery and offers a wide range of general surgery operations to his patients.

  • Dr. Levia
    Meet Our Doctors

    Dr. Leiva

    A certified General Surgeon at the forefront of single incision and robotic general surgery. Dr. Leiva also has a special interest in primary and revision, advanced laparoscopic.

  • Dr. Amir
    Meet Our Doctors

    Dr. Amr

    As a highly skilled and fellowship trained weight loss surgeon, Dr. Amr is skilled in laparoscopic foregut surgery and bariatric (weight loss) surgery.

  • Dr. Ayyar
    Meet Our Doctors

    Dr. Ayyar

    Dr. Ayyar has pioneered minimally invasive surgery in the West and Northwest Houston area. His expertise in minimally invasive and endocrine surgery allow him to perform parathyroid operations.

Gastric bypass broken down:

  • Restrictive portion – The size of the stomach is permanently reduced to about two ounces, therefore limiting the amount of food that can be eaten in one sitting.
  • Malabsorptive portion – After the restrictive portion of the procedure is performed, the new, smaller stomach is then attached to the small intestine at a lower point, bypassing most of the stomach and the beginning portion of the small intestine. Digestion, now, will not begin until further down your digestive tract, and therefore fewer calories are absorbed.

The average expected weight loss from a gastric bypass procedure is between 60% and 70% of excess body weight, however, each patient varies. Maximum weight loss occurs within about two years postoperatively.

At NHSA, we take pride in performing gastric bypass surgery laparoscopically. This means that a series of small incisions are made, and small, long-handled instruments are then guided by a tiny camera. Not only does this drastically minimize scarring, but it may also reduce recovery time and produce better surgical results.

With minimally invasive techniques, long hand-held instrument are inserted through smaller trochars and used to perform the surgery, while the surgeon views the inside of the abdomen on a TV screen. Specialized tools such as scissor, graspers, ultrasonic dissectors and endoscopic staplers facilitate the surgeon’s ability to perform complex intraabdominal surgery using advanced laparoscopic techniques.


We understand that a major decision like this takes a lot of research and consideration. All of our surgeons stay on the cutting edge of surgical advancements in order to provide you with the latest in medical care while simultaneously minimizing risks.

The best way to know if you are a candidate for gastric bypass surgery in Houston, TX is to meet with one of our surgeons for a consultation to discuss your particular case. They always take into account your personal goals and lifestyle, and aim to educate you on the risks and benefits of weight loss surgery. Request a consultation online or call our office at 713-426-2400 for more information.


Benefits of Gastric BypassRisks of Gastric Bypass
  • Early sense of fullness and satisfaction that reduces the desire to eat
  • Quicker and greater weight loss than purely restrictive procedures
  • Improved or resolved conditions associated with obesity including type 2 diabetes, high blood pressure, high cholesterol, osteoarthritis, joint pain, ovulation and infertility
  • Improved physical function, appearance and quality of life
  • Reduced or eliminated symptoms of depression
  • Staple separation or leakage
  • Ulcers
  • Dumping syndrome, which includes vomiting, nausea, weakness, sweating, faintness and diarrhea that may occur as the result of eating too much food or sugar
  • Potential inability to see the stomach, duodenum and parts of the small intestine with x-ray or endoscopy, should problems arise after surgery such as ulcers, bleeding or malignancy
  • Increased gas

You will likely reach your goal weight about two years after surgery. It is important to commit to a comprehensive follow-up plan to maximize your outcome. The surgical team at NHSA is committed to helping you on this journey to a healthier you.


Because gastric bypass surgery alters normal digestion, patients must adhere to a liquid diet for the next few weeks following surgery, progressing to pureed foods that can pass easily through the new stomach pouch. Drinking plenty of fluids during this time is pertinent, as dehydration may occur.

Approximately six weeks after surgery, you will transition to the diet that you will continue for the rest of your life. The diet includes regular healthy table foods, but in smaller portions, along with necessary vitamin, mineral and protein supplements.

Over the next six months you will learn new eating techniques and how to avoid foods, such as fatty and sweet foods, that can make you sick. At this time, weight loss is rapid. Diarrhea may occur, but can be controlled by avoiding certain foods or taking medication. All of this will be explained in detail before your gastric bypass procedure.

Request a consultation online or call our office at 713-426-2400 for more information about how you can take the steps toward being your best self.

Obalon Balloon System Surgery

The Obalon Balloon System helps facilitate weight loss by taking up space in your stomach so you eat less.

....Learn More....
Gastric Band

As one of the more popular procedures, LAP-BAND® surgery gives patients the ability to control their weight by allowing them to feel fuller, sooner.

....Learn More....
Gastric Bypass

Gastric bypass is successful at helping patients achieve and maintain a healthier weight by using sectioning and malabsorptive techniques.

....Learn More....
Sleeve Gastrectomy

A sleeve gastrectomy procedure involves removing about 85% of the stomach and reshaping the remaining portion into a tube or sleeve.

....Learn More....
Duodenal Switch

The Biliopancreatic Diversion with Duodenal Switch (BPD/DS) is a popular procedure for small stomachs combining a lower form of restriction and a high level of malabsorption.

....Learn More....