OSF Little Company of Mary Medical Center

Evergreen Park, Illinois

Bariatric Surgery

Bariatric surgery is a medically proven way to treat obesity and has helped many people live more fulfilling, active and healthier lives. But it is part of an entire process of change. 

Many patients who are morbidly obese have tried to lose weight through diet change and exercise. But some patients are different, and even major lifestyle changes haven't worked. 

Bariatric surgery can be particularly effective because it decreases the amount of food a patient can intake or reduces the amount the body can absorb or metabolize. 

The result of these procedures and continued support is that patients can lose up to 60-80% of their excess body weight over one year with gastric bypass surgery.

The OSF Little Company of Mary Bariatric Surgery Center is committed to high-quality standards for its surgical procedures and the complete lifestyle assistance that must accompany them. 


The typical candidate for bariatric treatment at OSF Little Company of Mary is 18 years old or older and has a body mass index (BMI) of 40 or greater.

A patient is also a candidate if their BMI is between 35 and 40 and has one of the following obesity-related conditions:

  • High blood pressure (hypertension)
  • Heart problems (cardiovascular disease)
  • Diabetes
  • Sleep apnea
  • Degenerative joint disease

All candidates should have made multiple weight loss attempts through diets, exercise, behavior changes or weight loss drugs.

They must exhibit a willingness to participate in the multi-disciplinary program at OSF Little Company of Mary.

A strong determination and commitment to changing your lifestyle partnered with education are the main tools any bariatric patient needs for success.

Talk with Our Bariatric Coordinator

Name Phone Email
Mary Alberts, RN (708) 229-5969 Send Email

Bariatric Surgery Center Mission

The OSF Little Company of Mary Bariatric Surgery Center's goal is to provide excellent, personalized, local care for patients requesting weight loss surgery.

We strive to help you achieve a realistic goal weight, a positive attitude about your health and an overall improved lifestyle.

By strictly adhering to the American Society for Bariatric Surgery recommendations and guidelines, we look forward to helping you in your journey for a longer life of healthy living.

Because proper weight control management requires a motivated patient and continued support, we offer a multi-disciplinary program for healthy weight loss.

We offer a wide range of services lead by an integrated team of specialists that will talk with you and explain every procedure in detail and keys for long-term success.

Our Services

  • Comprehensive surgical consultation
  • Minimally invasive laparoscopic and open gastric bypass surgery
  • Nutritional counseling
  • Psychological support and workshops
  • Monthly support group meetings
  • Long-term follow-up, including medical, nutritional and metabolic evaluation

Advanced, Minimally-Invasive Procedures

OSF Little Company of Mary is focused on reducing the pain of surgery as much as possible. That's why we specialize in minimally invasive laparoscopic techniques, including:

  • Roux-en-Y Gastric Bypass Surgery - is the most frequently performed and most researched weight loss surgery in the United States. During this procedure, a small stomach pouch is created by stapling part of the stomach, and part of the intestine is attached to this pouch. Food bypasses a section of the intestine and reduces calorie absorption. The smaller stomach pouch limits the amount of food that can be ingested, so an altered diet and smaller portion sizes become a part of the lifestyle change.  
  • Vertical Sleeve Gastrectomy - is recommended as a restrictive surgery and is performed as an alternative to Lap Band surgery. A portion of the stomach is removed, and the remainder is formed into a sleeve without any intestinal detachment (re-routing). A smaller stomach causes patients to eat less but still feel full. An altered diet and smaller portion sizes are part of a lifelong change needed with this procedure. Because a portion of the stomach is removed, this surgery is not reversible. 

These procedures represent the latest advancements in bariatric surgery.

With less pain, a lower rate of complications, a shorter hospital stay and a quicker return to normal activities, these procedures let you begin a new lifestyle sooner. 

Weight Loss Benefits

The medical and emotional benefits of bariatric surgery begin almost immediately. Over time these benefits can include:

  • Sustained weight loss
  • Improvement or resolution of Type 2 diabetes
  • Lower blood pressure
  • Lower cholesterol
  • Improvement of sleep apnea 
  • Improved mobility
  • Reduced osteoarthritis pain
  • Higher energy level
  • Improved self-esteem

Becoming a Patient

The first step is to call (708) 229-5969 to schedule a consultation. 

From there, you'll meet with a program surgeon to determine what kind of surgery is best for you. You'll learn about available surgical procedures, possible side effects and how your habits will have to change. 

A strong determination and commitment to changing your lifestyle partnered with education are the main tools any bariatric patient needs to be a truly successful candidate.

Monthly Support Group

We also encourage you to attend and participate in our free monthly support group, where you can talk with our weight loss specialists and patients. 

The support group meets the first Tuesday of the month at 7 p.m. in room N1702 on the first floor across from the cafeteria at OSF Little Company of Mary.

After Surgery

After surgery, your lifestyle will need to include a healthy diet, regular exercise and adherence to a comprehensive follow-up schedule.

Within six to eight weeks, most patients return to a normal diet. You will need to chew your food well, eat slowly and refrain from drinking with your meals. 

Although you should be able to eat most foods after surgery, some food intolerance may be experienced.

Your hospital stay after gastric bypass surgery or sleeve gastrectomy will range from one to two days and three to five days for a duodenal switch.

You will need between one to six weeks off work following surgery, depending on the amount of lifting and physical activity associated with your job and your surgeon's recommendation.