title: Effectiveness of intragastric balloon treatment for obese patients: one-year follow-up after balloon removal.
abstract: BACKGROUND
  The Bioenterics Intragastric Balloon (BIB) is effective for weight loss. However, comparisons of its effectiveness between groups with different body mass index (BMI) are rare. This study compared the effectiveness of BIB treatment in patients with BMI <32 kg/m(2) and those with BMI ≥ 32 kg/m(2) at the time of BIB removal and at 1 year later.
  
  
  METHODS
  Between April 2009 and June 2011, 28 obese patients who completed a full course of BIB treatment were enrolled. There are 16 patients with BMI <32 and 12 with BMI ≥ 32. Patients who lost more than 20 % of excess weight (% EWL) were categorized as responders.
  
  
  RESULTS
  The BMI significantly fell from 32.4 ± 3.7 to 28.5 ± 3.7 kg/m(2) (P < 0.01) at the time of BIB removal. All biochemical measurements except for cholesterol level were significantly improved. The median value of %EWL of all patients at BIB removal was 40.1, and 20 patients (71.4 %) were responders. Adherence to dietitian counseling was significantly better in responders than in non-responders (85 vs. 25 %, respectively; P < 0.01). The percentage of responders at 1 year after BIB removal was significantly higher among patients with BMI <32 than those with ≥ 32 (62.5 vs. 16.7 %, respectively; P = 0.02).
  
  
  CONCLUSIONS
  BIB placement can achieve significant weight loss and improvement of co-morbidities in obese patients. Better adherence to dietitian counseling is associated with better response. Patients with BMI <32 maintain better weight loss at 1 year after BIB removal.
authors.affiliation: Bariatric and Metabolic International Surgery Center, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan.
authors.forename: Chi-Ming
authors.initials: CM
authors.lastname: Tai
authors.forename: Hung-Yen
authors.initials: HY
authors.lastname: Lin
authors.forename: Yung-Chieh
authors.initials: YC
authors.lastname: Yen
authors.forename: Chih-Kun
authors.initials: CK
authors.lastname: Huang
authors.forename: Wan-Ling
authors.initials: WL
authors.lastname: Hsu
authors.forename: Ya-Wei
authors.initials: YW
authors.lastname: Huang
authors.forename: Chi-Yang
authors.initials: CY
authors.lastname: Chang
authors.forename: Hsiu-Po
authors.initials: HP
authors.lastname: Wang
authors.forename: Lein-Ray
authors.initials: LR
authors.lastname: Mo
mesh_terms: D000328:Adult; D044466:Asian People; D015992:Body Mass Index; D003131:Combined Modality Therapy; D015897:Comorbidity; D020878:Device Removal; D005260:Female; D005500:Follow-Up Studies; D015905:Gastric Balloon / Q000706:statistics & numerical data; D006801:Humans; D008297:Male; D008875:Middle Aged; D009767:Obesity, Morbid / Q000453:epidemiology / Q000601:surgery*; D010342:Patient Acceptance of Health Care / Q000706:statistics & numerical data; D055502:Secondary Prevention; D013624:Taiwan / Q000453:epidemiology; D013997:Time Factors; D016896:Treatment Outcome; D015431:Weight Loss