title: Body fat accumulation and postoperative complications after abdominal surgery.
abstract: The contribution of subcutaneous or intra-abdominal fat (SCF, IAF) accumulation to postoperative mortality or morbidity after elective gastric or colorectal cancer surgery was studied. One hundred thirty-nine patients who underwent gastric or colorectal cancer surgery were investigated. Data were collected on the following preoperative comorbid conditions: lung dysfunction, cardiovascular dysfunction, liver dysfunction, or diabetes mellitus (DM). The IAF and SCF areas were determined at the umbilical level by preoperative CT scanning. We investigated whether IAF or SCF was independently associated with postoperative mortality or morbidity. The mortality rate was 0.7 per cent (1/139). Nineteen (14%) of 139 patients had medical complications (pneumonitis or arrhythmia) and 27 (19%) had surgery-related complications (anastomotic leakage, intra-abdominal collections, or abdominal wound infection) postoperatively. Age (> or =70 years), lung dysfunction, cardiovascular dysfunction, and IAF were significantly associated with medical complications, and surgical site (gastric/colorectal), DM, body mass index, IAF, and SCF were significant for surgery-related complications by univariate analysis. Multilogistic regression analysis showed that age, cardiovascular dysfunction, and IAF were significant for medical complications, and surgical site, DM, and SCF were independently related with surgery-related complications. Body fat accumulation is independently associated with postoperative morbidity after gastric or colorectal surgery, and assaying it may be useful for predicting postoperative complications.
authors.affiliation: Department of first Surgery, Gunma University School of Medicine, Maebashi, Japan.
authors.forename: Katsuhiko
authors.initials: K
authors.lastname: Tsukada
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Miyazaki
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kato
authors.forename: Norihiro
authors.initials: N
authors.lastname: Masuda
authors.forename: Minoru
authors.initials: M
authors.lastname: Fukuchi
authors.forename: Yasuyuki
authors.initials: Y
authors.lastname: Fukai
authors.forename: Masanobu
authors.initials: M
authors.lastname: Nakajima
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Ishizaki
authors.forename: Masahiko
authors.initials: M
authors.lastname: Motegi
authors.forename: Akira
authors.initials: A
authors.lastname: Mogi
authors.forename: Makoto
authors.initials: M
authors.lastname: Sohda
authors.forename: Takao
authors.initials: T
authors.lastname: Moteki
authors.forename: Tomoaki
authors.initials: T
authors.lastname: Sekine
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kuwano
mesh_terms: D000273:Adipose Tissue; D000368:Aged; D015992:Body Mass Index; D015179:Colorectal Neoplasms / Q000473:pathology / Q000601:surgery; D013505:Digestive System Surgical Procedures / Q000009:adverse effects* / Q000379:methods; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D009765:Obesity / Q000150:complications* / Q000175:diagnosis; D011183:Postoperative Complications / Q000175:diagnosis / Q000401:mortality*; D011300:Preoperative Care; D011336:Probability; D012016:Reference Values; D012189:Retrospective Studies; D018570:Risk Assessment; D012494:Sampling Studies; D013274:Stomach Neoplasms / Q000473:pathology / Q000601:surgery; D015996:Survival Rate; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome