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San Francisco Bay Area |
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We are pleased to announce our monthly support meetings with Dr. John Feng on the Peninsula! Pre and Post-ops Welcome!
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2009 Seminar Dates
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Stockton, Lodi, Modesto, Sacramento and surrounding areas |
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We are pleased to announce our monthly support meetings with Dr. John Feng for patients from the San Joaquin and Sacramento Valley areas. Pre and Post-ops Welcome!
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2009 Seminar Dates
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East Bay Walnut Creek |
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We are pleased to announce our monthly support meetings with Dr. John Feng for patients from the East Bay, Walnut Creek CA.. Pre and Post-ops Welcome!
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2009 Seminar Dates
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Bay Area Silicon Valley and San Jose areas |
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We are pleased to announce our monthly support meetings with Dr. John Feng for patients from the Silicon Valley areas. Pre and Post-ops Welcome!
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2009 Seminar Dates
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Monterey Peninsula |
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We are pleased to announce our monthly information seminar and support group meetings with Dr. John Feng for patients from the Monterey, Pacific Grove, Salinas, Carmel and surrounding areas. Pre and Post-ops Welcome!
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2009 Seminar Dates
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Appointments & Contacts

Support Groups
There are many weight loss program support groups provided to patients with excellent opportunities to discuss their personal and professional issues. Weight loss surgery will not resolve immediate existing emotional issues or heal the years of damage that obesity might have inflicted on your well being. |
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Dr. Feng has resources to assist you with short term and long term questions and needs. Crystal Springs Surgical Associates has ongoing post-surgical support groups to produce the greatest level of success for our patients.
Upcoming Group Meetings
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Appointments & Contacts

The Importance of Support from Friends and Family
The changes in your diet and lifestyle after surgery will last a lifetime. And you'll have a greater chance of long-term success if you surround yourself with people who understand and support your goals.
Things you can do
- Help your friends and family members understand why you've chosen a surgical solution. Many people are under the impression that weight loss surgery is an experimental treatment rather than one with more than 40 years of history. Direct them to this web site or others in our Additional Resources section. It's important that they understand that morbid obesity is a disease and that diets don't work for you.
- People who are morbidly obese often report that their spouses, or others close to them, seem to discourage weight loss. These people see your weight as part of your identity. Understand that this is a fear of change. Discuss your reasons for having surgery. They need to know that your health is at stake and you will be counting on them to help you during and after surgery.
- Attend support groups in your area or visit them online. Your surgeon's office will help you here. Surround yourself with people who share your situation. Ask questions and receive answers in a supportive environment. Form a network to share recipes and exercise tips. It's important for you to know that you are not alone. There are knowledgeable, friendly people available to support and help you.
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Appointments & Contacts

Press Release
New Incisionless Procedure to Treat Weight Regain After Gastric Bypass
An incision-free procedure known as "ROSE" (Restorative Obesity Surgery, Endolumenal) reduces the size of a patient's stomach pouch and stoma to the original post-gastric bypass proportions to help them back onto the path of weight loss.
Gastric bypass patients work very hard to manage their weight and adjust their lifestyle after surgery. Sometimes, through no fault of their own or their surgeon, the benefits of the bypass procedure are not permanent. Revision options have been expensive, difficult to perform and risky for the patient, effectively leaving them without any treatment options. Now, with this new incisionless procedure being we have a new and dramatically less invasive way to correct a key cause of weight regain.
Gastric bypass surgery offers a very effective means to lose weight. It is not, however, always a permanent fix. A large percentage of patients who undergo gastric bypass begin to regain weight -- and the dangerous co-morbidities associated with it -- a few years after their initial operation.
Studies show that post-gastric bypass weight regain sometimes occurs because the stomach pouch and the opening to the small intestine (the stoma) slowly stretch out, allowing the patient to eat more without feeling full. Invasive procedures to restore the anatomy to the original post-surgery proportions have been too complicated and dangerous for most patients, leaving them without any feasible treatment options.
By eliminating skin incisions, this new procedure may provide important advantages to patients including reduced risk of infection and associated complications, less post-operative pain, faster recovery time and no abdominal scars.
To perform the ROSE procedure a small, flexible endoscope and new surgical devices are used. The scope and the devices are inserted through the mouth and into the stomach pouch. The tools are then used to grasp tissue and deploy tissue anchors to create multiple, circumferential tissue folds around the stoma, reducing the diameter of the opening to more closely match original post- gastric bypass proportions. If needed, additional anchors are then placed in the stomach pouch to reduce its volume capacity. No cuts are made into the patient's skin during the procedure.
Ideal patients for the ROSE procedure are patients who were initially successful losing weight after their gastric bypass and now are regaining weight. After an initial screening, candidates undergo a series of evaluations including nutritional and dietary counseling, a full medical exam, and endoscopy to determine if they are good candidates.
More than 24 million people in the United States suffer from severe obesity and the numbers continue to rise. Several serious diseases and conditions are commonly associated with obesity, including Type II diabetes, hypertension, sleep apnea, and cardiovascular disease. Surgical treatment of obesity has increased significantly in recent years. Over 200,000 individuals in the United States underwent bariatric surgery in 2007, and it is estimated that over 125,000 patients today are candidates waiting for an incisionless revision procedure.
Dr. John Feng is the only qualified trained surgeon to perform this highly specialized ROSE procedure south of the Canadian border, west of Chicago, Illinois, and north of Fresno, California due to his expertise and experience in minimally-invasive bariatric surgery.
Body After Lap-Band Surgery
Guiding Light Star Caitlin VanZandt is 90Ibs. lighter and ready for the beach.
To read Caitlin VanZandt story, click here to download the full article.

Latest News in Bariatric Surgery in the Bay Area
Dr. Feng will perform telesurgery as part of the live surgery training portion of the Stanford Laparoscopic Sleeve Gastrectomy course
Dr. Feng has been asked to participate as a mentor due to his extensive experience in performing this procedure 100% minimally-invasive without the need for large, open incisions from 2001. The surgery can be performed for qualified patients of almost any Body Mass Index with optimal results. The procedure is unique in its versatility and effectiveness.
- Read more at Weight Loss Surgery Health or Medical Web Times
- Download the course agenda
Dr. John Feng to Speak at Obesity Help National Event in San Ramon, California
Bariatric Surgeon specializing in laparoscopic weight loss surgery, Dr. John Feng, MD, FACS will speak at the Obesity Help National Event in San Ramon, Calif. to educate participants about the latest, minimally invasive weight loss surgery techniques.
Obesity Help, known for its great support for the bariatric community of weight loss surgery patients, asked Dr. Feng to speak because of his expertise in bariatric surgery.
Dr. Feng will speak about the variety of surgical treatments for obesity with a focus on laparoscopic techniques. He will also speak to the key elements of successful and healthy weight loss after surgery.
Next Obesity Help Event: Dr. Feng will be speaking again in San Ramon
WHEN: This is an all day event on December 6, 2008
Dr. Feng speaks: 9:55 AM - 10:40 AM
For more information: Event InformationThe Bypass Effect On Diabetes, Cancer - Surgery Can Send Diabetes Into Remission, And May Reduce Risk Of Certain Cancers
(CBS) It's pretty well known to doctors that the most successful treatment for obesity is surgery, especially the gastric bypass operation. But here's something the medical world is just realizing: that the gastric bypass operation has other even more dramatic effects. It can force type 2 diabetes into almost instant remission and it appears to reduce the risk of cancer. Read More
Dr. John Feng * In the News!
ABC7 KGO-TV/DT San Francisco Oakland San JoseStudies Find Lasting Benefits Of Weight Loss Surgery
By Erik Rosales - Aug. 22, 2007 (KGO) - Weight loss surgery may be even more effective than experts thought. The first long-term studies of procedures like stomach stapling show the surgeries can lower a patient's risk of dying by as much as 40-percent within seven-to-ten years.Watch Video
Newsletter - Is Weight Loss Surgery Right For You?
Is Weight Loss Surgery Right for you? Reasons for Obesity - The reasons for obesity are multiple and complex. Despite conventional wisdom, it is not simply a result of overeating. Research has shown that in many cases a significant, underlying cause of morbid obesity is genetic. Studies have demonstrated that...
Download the Newsletter and Read More
Press Release4/19/2007 Crystal Springs Surgical Associates, A Medical Group, Inc., Announces the Opening of its New Bariatric Weight Loss Surgery Office in Walnut Creek, CA. - Serving the East Bay of San Francisco; Oakland, Danville, Alameda, San Leandro, San Ramon, Hayward, Fremont, Berkeley, Richmond, Vallejo, Concord and many more surrounding east bay communities.
Download Press Release
Press Release
2/15/2007 Crystal Springs Surgical Associates, A Medical Group, Inc., Announces the Opening of its New Bariatric Weight Loss Surgery Office in Lodi, CA. - Serving Stockton, Sacramento, Modesto, Lodi, Fresno and the San Joaquin Valley.
Download Press Release
Press Release
1/1/2007 Crystal Springs Surgical Associates, A Medical Group, Inc., Announces the Opening of its Two New Bariatric Surgery Offices in San Mateo and San Francisco, CA.
Download Press Release
Grand Opening!
Crystal Springs Surgical Associates was established in November 2006 after its founder John Feng MD spent four years with Laparoscopic Associates of San Francisco. Now with offices in San Mateo and San Francisco, the Bay Area has direct access to the latest weight loss surgery techniques.
Gastric Bypass Surgery Explored as Cure for Type 2 Diabetes
Karla Harby
Medscape Medical News 2007. © 2007 Medscape
April 13, 2007 (Seattle) — A bariatric surgery procedure used for treating severe obesity is now being explored as a cure for type 2 diabetes mellitus in normal-weight and moderately overweight patients with diabetes. Specific recommendations for using surgery in these patients are expected to appear this summer, according to a presentation here at the annual meeting and clinical congress of the American Association of Clinical Endocrinologists.
When used as a last resort for weight management, certain gastric bypass procedures have been known to completely reverse, or at least mitigate, type 2 diabetes. Until recently, researchers had assumed that weight loss alone was somehow responsible for this benefit. However, new research in rodents and very preliminary work in humans suggest that hormonal and metabolic changes caused by the surgery must be responsible, not simple weight loss, said Karen Foster-Schubert, MD, acting instructor at the University of Washington in Seattle.
"We really don't know what is being affected yet," Dr. Foster-Schubert told Medscape about the mechanism of diabetes reversal. Research in the laboratory of her colleague, David E. Cummings, MD, of the University of Washington, shows that ghrelin, a recently discovered peptide that stimulates appetite, is decreased after gastric bypass surgery. Other peptides, including the distal small intestine hormone peptide YY (PYY), and glucagon-like peptide 1 (GLP-1), secreted by intestinal L cells, increase after the operation, she said.Survey Finds 1 in 3 Americans Try Unproven Diet Pills
As reported by MSNBCHigh BMI Increases Risk of Parkinson's Disease
Neurology 2006;67:1955-1959.
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Appointments & Contacts

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