Linden Karas, MD
710 Richland Mall,
Suite L, Ontario, OH, 44906


List of required vitamins

Bariatric Surgery Seminar Video

Bariatric Surgery Questionnaire

Obesity Related Diseases


Bariatric and Metabolic Surgery at Avita

With the addition of fellowship-trained bariatric surgeon, Dr. Linden Karas, Avita has started a surgical program focused on individuals who are struggling with health problems and disabilities as a result of obesity. Through Avita’s comprehensive bariatric program, individuals have several options for improving their health and quality of life.

Bariatric and metabolic surgery have helped thousands of people discover life at a healthier weight resolving many health conditions associated with severe obesity. “Bariatric surgery is more than a weight-loss solution,” comments Dr. Karas. “Rather, it improves and/or resolves many obesity-related conditions such as Type 2 Diabetes, high blood pressure, heart disease, stroke, osteoarthritis, sleep apnea, reflux/GERD, incontinence, fatigue, back and joint pain, depression, and mobility issues.”

The first step for individuals who are considering bariatric surgery is to become informed about the surgical options and the pre-surgical process. Avita’s program is very thorough and patients are required to complete several pre-screening appointments and tests prior to surgery, which is standard in any quality bariatric program. Pre-surgical requirements include clearance from a primary care physician and psychologist, lab work, radiology procedures, and visits to a nutritionist and/or dietician.


The path to Bariatric and Weight Loss Surgery

You might be a candidate if
  • BMI>40,
  • BMI>35 + obesity-related health problem,
  • attempted and failed multiple diet and exercise regimens,
  • over 18. 
To learn more about bariatric surgery and whether or not it is right for you, please attend a seminar.


Getting ready for bariatric surgery
  • 3-9 months of supervised weight loss attempts
    • monthly visits with a primary care provider or dietician specifically dedicated to weight loss
    • Varies by insurance carrier
  • Medical clearance from your PCP
  • Clearance from medical specialists (heart, lung, or diabetes doctors)
  • Psychological evaluation
  • Upper endoscopy
  • Sleep study
  • Lab work
  • Attendance at support group or bariatric exercise program
After Surgery
  • Most patients spend 1-2 nights in the hospital after surgery.
  • On the night of surgery, you will be able to drink and walk around.
  • Most return to work in 2-4 weeks.
  • The only restrictions following surgery will be on your diet (slow progression from liquids to solid food over 4-6 weeks) and heavy lifting (no > 10 lbs).
  • Long-term follow-up with Bariatric team (surgeon, psychology, dietician, and yearly lab-work) every 3 months for the first year and yearly thereafter. (There's a table in the attached seminar)
Meet the team