title: Changes in lipid profiles in morbidly obese patients after laparoscopic sleeve gastrectomy (LSG).
abstract: BACKGROUND
  Laparoscopic sleeve gastrectomy (LSG) has evolved as a primary weight loss surgery. This study provides changes in lipid profiles in obese patients 1 year after LSG.
  
  
  METHODS
  A retrospective analysis of patients who underwent LSG from June 2004 to June 2008 provided data on demographics, body mass index (BMI) changes, co-morbidities, and medication changes. We compared lipid profiles, and the relationship between the lipid profiles and pre-operative weight, BMI, and weight loss. Proportion changes for all variables were also assessed. Lipid profiles for those taking lipid-lowering therapy and patients receiving no medication were evaluated.
  
  
  RESULTS
  Data is presented on 45 patients (58% women) ages 18 to 73 years. Co-morbidities included hypertension (19), hyperlipidemia (22), and diabetes (13). One year after LSG, weight decreased from 161.4 ± 34.3 to 112.9 ± 25.6 kg (p < 0.01). BMI decreased from 57.5 ± 9.6 to 39.9 ± 7.1 kg/m(2) (p < 0.01). Patients with elevated triglycerides decreased from 17 to 8 (p < 0.01) while patients with elevated cholesterol increased from 13 to 15. High-density lipoprotein cholesterol (HDL) increased from 48.4 to 54.5 mg/dl (p < 0.01) and triglycerides (TG) decreased from 141.7 to 109.3 mg/dl (p < 0.01). TC/HDL and TG/HDL ratios also, decreased significantly (p < 0.01). There were no changes for total cholesterol (TC) and low-density lipoprotein cholesterol (LDL). TG/HDL changes correlated with pre-op weight (r = 0.363, p < 0.05).
  
  
  CONCLUSIONS
  One year after LSG, significant weight loss and improvements in HDL and TG levels, TC/HDL and TG/HDL ratios were observed. TC and LDL levels were unchanged.
authors.affiliation: Department of Surgery, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, 310006, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Zhang
authors.forename: Gladys Witt
authors.initials: GW
authors.lastname: Strain
authors.forename: Wen
authors.initials: W
authors.lastname: Lei
authors.forename: Gregory F
authors.initials: GF
authors.lastname: Dakin
authors.forename: Michel
authors.initials: M
authors.lastname: Gagner
authors.forename: Alfons
authors.initials: A
authors.lastname: Pomp
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D015992:Body Mass Index; D005260:Female; D005743:Gastrectomy / Q000379:methods*; D006801:Humans; D010535:Laparoscopy; D008055:Lipids / Q000097:blood*; D008075:Lipoproteins, HDL / Q000097:blood; D008297:Male; D008875:Middle Aged; D009767:Obesity, Morbid / Q000097:blood* / Q000503:physiopathology / Q000601:surgery; D011184:Postoperative Period; D014280:Triglycerides / Q000097:blood; D055815:Young Adult
chemical_list: D008055:Lipids; D008075:Lipoproteins, HDL; D014280:Triglycerides